[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/pre-commit/pre-commit-hooks: v4.3.0 → v4.4.0](https://github.com/pre-commit/pre-commit-hooks/compare/v4.3.0...v4.4.0)
- [github.com/pre-commit/mirrors-clang-format: v14.0.6 → v15.0.7](https://github.com/pre-commit/mirrors-clang-format/compare/v14.0.6...v15.0.7)
- [github.com/PyCQA/pylint: v2.15.5 → v2.16.1](https://github.com/PyCQA/pylint/compare/v2.15.5...v2.16.1)
- [github.com/pre-commit/mirrors-autopep8: v1.7.0 → v2.0.1](https://github.com/pre-commit/mirrors-autopep8/compare/v1.7.0...v2.0.1)
- [github.com/fsfe/reuse-tool: v1.0.0 → v1.1.0](https://github.com/fsfe/reuse-tool/compare/v1.0.0...v1.1.0)

.pre-commit-config.yaml

@@ -1,9 +1,5 @@
 # See https://pre-commit.com for more information
 # See https://pre-commit.com/hooks.html for more hooks
-ci:
-    skip: [pylint]
-    autoupdate_schedule: monthly
-
 exclude: ^(cmake/ECM|cmake/KDAB/)
 repos:
 - repo: https://github.com/pre-commit/pre-commit-hooks
@@ -17,22 +13,22 @@ repos:
     args: [--allow-multiple-documents]
   - id: check-json
 - repo: https://github.com/pre-commit/mirrors-clang-format
-  rev: v14.0.6
+  rev: v15.0.7
   hooks:
   - id: clang-format
     exclude: (.json)
 - repo: https://github.com/PyCQA/pylint
-  rev: v2.17.1
+  rev: v2.16.1
   hooks:
   - id: pylint
     exclude: ^(.cmake-format.py|conan/conanfile.py)
     additional_dependencies: ["PySide2", "PySide6"]
 - repo: https://github.com/pre-commit/mirrors-autopep8
-  rev: v2.0.2
+  rev: v2.0.1
   hooks:
   - id: autopep8
 - repo: https://github.com/codespell-project/codespell
-  rev: v2.2.4
+  rev: v2.2.2
   hooks:
   - id: codespell
 - repo: https://github.com/cheshirekow/cmake-format-precommit
@@ -50,6 +46,6 @@ repos:
     language: ruby
     files: \.(md|mdown|markdown)$
 - repo: https://github.com/fsfe/reuse-tool
-  rev: v1.1.2
+  rev: v1.1.0
   hooks:
   - id: reuse

.reuse/dep5

@@ -14,7 +14,7 @@ Copyright: 2019-2023 Klarälvdalens Datakonsult AB, a KDAB Group company <info@k
 License: GPL-2.0-only OR GPL-3.0-only
 
 #misc config files
-Files: .pre-commit-config.yaml .codespellrc .krazy .cmake-format .clang-format .clazy .gitignore .mdlrc .mdlrc.rb .pep8 .pylintrc appveyor.yml code.dev-*.code-workspace vscode.code-workspace docs/api/Doxyfile.cmake distro/*
+Files: .pre-commit-config.yaml .codespellrc .krazy .cmake-format .clang-format .clazy .gitignore .mdlrc .mdlrc.rb .pep8 .pylintrc appveyor.yml code.dev-*.code-workspace docs/api/Doxyfile.cmake distro/*
 Copyright: 2019-2023 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
 License: BSD-3-Clause
 

CMakeLists.txt

@@ -63,6 +63,11 @@
 #  Build the layout linter.
 #  Ignored unless KDDockWidgets_DEVELOPER_MODE=True
 #  Default=true
+#
+# -DKDDockWidgets_FUZZER=[true|false]
+#  Build the fuzzer.
+#  Ignored unless KDDockWidgets_DEVELOPER_MODE=True
+#  Default=true
 
 cmake_minimum_required(VERSION 3.12)
 
@@ -88,8 +93,8 @@ project(
 )
 
 set(${PROJECT_NAME}_VERSION_MAJOR 1)
-set(${PROJECT_NAME}_VERSION_MINOR 7)
-set(${PROJECT_NAME}_VERSION_PATCH 1)
+set(${PROJECT_NAME}_VERSION_MINOR 6)
+set(${PROJECT_NAME}_VERSION_PATCH 95)
 set(${PROJECT_NAME}_VERSION
     ${${PROJECT_NAME}_VERSION_MAJOR}.${${PROJECT_NAME}_VERSION_MINOR}.${${PROJECT_NAME}_VERSION_PATCH}
 )
@@ -348,7 +353,29 @@ if(${PROJECT_NAME}_TESTS)
     if(${PROJECT_NAME}_DEVELOPER_MODE)
         add_subdirectory(tests)
 
-        add_test(NAME tst_docks COMMAND tst_docks)
+        # tst_docks.exe is pretty big (160 tests), so split it in more runs so we can use threads.
+        add_test(NAME tst_docks0 COMMAND tests_launcher 0 5)
+        add_test(NAME tst_docks1 COMMAND tests_launcher 1 5)
+        add_test(NAME tst_docks2 COMMAND tests_launcher 2 5)
+        add_test(NAME tst_docks3 COMMAND tests_launcher 3 5)
+        add_test(NAME tst_docks4 COMMAND tests_launcher 4 5)
+        add_test(NAME tst_docks5 COMMAND tests_launcher 5 5)
+        add_test(NAME tst_docks6 COMMAND tests_launcher 6 5)
+        add_test(NAME tst_docks7 COMMAND tests_launcher 7 5)
+        add_test(NAME tst_docks8 COMMAND tests_launcher 8 5)
+        add_test(NAME tst_docks9 COMMAND tests_launcher 9 5)
+        add_test(NAME tst_docks10 COMMAND tests_launcher 10 5)
+        add_test(NAME tst_docks11 COMMAND tests_launcher 10 5)
+        add_test(NAME tst_docks12 COMMAND tests_launcher 11 5)
+        add_test(NAME tst_docks13 COMMAND tests_launcher 12 5)
+        add_test(NAME tst_docks14 COMMAND tests_launcher 13 5)
+        add_test(NAME tst_docks15 COMMAND tests_launcher 14 5)
+        add_test(NAME tst_docks16 COMMAND tests_launcher 15 5)
+        add_test(NAME tst_docks17 COMMAND tests_launcher 16 5)
+        add_test(NAME tst_docks18 COMMAND tests_launcher 17 5)
+        add_test(NAME tst_docks19 COMMAND tests_launcher 18 5)
+        add_test(NAME tst_docks20 COMMAND tests_launcher 19 5)
+        add_test(NAME tst_docks21 COMMAND tests_launcher 20 5) # one more for rounding leftovers
 
         if(NOT ${PROJECT_NAME}_QTQUICK)
             # tst_multisplitter depends on QWidget

CMakePresets.json

@@ -9,10 +9,11 @@
             "cacheVariables": {
                 "CMAKE_BUILD_TYPE": "Debug",
                 "KDDockWidgets_DEVELOPER_MODE": "ON",
-                "CMAKE_EXPORT_COMPILE_COMMANDS": "ON"
+                "CMAKE_EXPORT_COMPILE_COMMANDS" : "ON",
+                "KDDockWidgets_FUZZER" : "OFF"
             },
-            "warnings": {
-                "uninitialized": true
+            "warnings" : {
+                "uninitialized" : true
             }
         },
         {
@@ -24,11 +25,12 @@
             "cacheVariables": {
                 "CMAKE_BUILD_TYPE": "Debug",
                 "KDDockWidgets_DEVELOPER_MODE": "ON",
-                "CMAKE_EXPORT_COMPILE_COMMANDS": "ON",
-                "ECM_ENABLE_SANITIZERS": "'address;undefined'"
+                "CMAKE_EXPORT_COMPILE_COMMANDS" : "ON",
+                "KDDockWidgets_FUZZER" : "OFF",
+                "ECM_ENABLE_SANITIZERS" : "'address;undefined'"
             },
-            "warnings": {
-                "uninitialized": true
+            "warnings" : {
+                "uninitialized" : true
             }
         },
         {
@@ -39,11 +41,11 @@
             "cacheVariables": {
                 "CMAKE_BUILD_TYPE": "Debug",
                 "KDDockWidgets_WERROR": "ON",
-                "KDDockWidgets_EXAMPLES": "OFF"
+                "KDDockWidgets_EXAMPLES" : "OFF"
             },
             "environment": {
                 "CXX": "clazy",
-                "CCACHE_DISABLE": "ON"
+                "CCACHE_DISABLE" : "ON"
             }
         },
         {
@@ -53,13 +55,13 @@
             "binaryDir": "${sourceDir}/build-clazy-qtquick",
             "cacheVariables": {
                 "CMAKE_BUILD_TYPE": "Debug",
-                "KDDockWidgets_EXAMPLES": "OFF",
+                "KDDockWidgets_EXAMPLES" : "OFF",
                 "KDDockWidgets_WERROR": "ON",
                 "KDDockWidgets_QTQUICK": "ON"
             },
             "environment": {
                 "CXX": "clazy",
-                "CCACHE_DISABLE": "ON"
+                "CCACHE_DISABLE" : "ON"
             }
         },
         {
@@ -78,7 +80,7 @@
             "binaryDir": "${sourceDir}/build-release-no-x11extras",
             "cacheVariables": {
                 "CMAKE_BUILD_TYPE": "Release",
-                "KDDockWidgets_X11EXTRAS": "OFF"
+                "KDDockWidgets_X11EXTRAS" : "OFF"
             }
         },
         {
@@ -100,8 +102,9 @@
                 "CMAKE_BUILD_TYPE": "Debug",
                 "KDDockWidgets_QTQUICK": "ON",
                 "KDDockWidgets_DEVELOPER_MODE": "ON",
-                "ECM_ENABLE_SANITIZERS": "'address;undefined'",
-                "CMAKE_EXPORT_COMPILE_COMMANDS": "ON"
+                "ECM_ENABLE_SANITIZERS" : "'address;undefined'",
+                "CMAKE_EXPORT_COMPILE_COMMANDS" : "ON",
+                "KDDockWidgets_FUZZER" : "OFF"
             }
         },
         {
@@ -154,7 +157,7 @@
             "cacheVariables": {
                 "CMAKE_BUILD_TYPE": "Release",
                 "KDDockWidgets_QT6": "ON",
-                "CMAKE_PREFIX_PATH": "$env{QT6_DIR}"
+                "CMAKE_PREFIX_PATH" : "$env{QT6_DIR}"
             },
             "environment": {
                 "PATH": "$env{QT6_DIR}/bin:$penv{PATH}"
@@ -169,8 +172,9 @@
                 "CMAKE_BUILD_TYPE": "Debug",
                 "KDDockWidgets_QT6": "ON",
                 "KDDockWidgets_DEVELOPER_MODE": "ON",
-                "CMAKE_EXPORT_COMPILE_COMMANDS": "ON",
-                "CMAKE_PREFIX_PATH": "$env{QT6_DIR}"
+                "CMAKE_EXPORT_COMPILE_COMMANDS" : "ON",
+                "KDDockWidgets_FUZZER" : "OFF",
+                "CMAKE_PREFIX_PATH" : "$env{QT6_DIR}"
             },
             "environment": {
                 "PATH": "$env{QT6_DIR}/bin:$penv{PATH}"
@@ -185,9 +189,10 @@
                 "CMAKE_BUILD_TYPE": "Debug",
                 "KDDockWidgets_QT6": "ON",
                 "KDDockWidgets_DEVELOPER_MODE": "ON",
-                "CMAKE_EXPORT_COMPILE_COMMANDS": "ON",
-                "ECM_ENABLE_SANITIZERS": "'address;undefined'",
-                "CMAKE_PREFIX_PATH": "$env{QT6_DIR}"
+                "CMAKE_EXPORT_COMPILE_COMMANDS" : "ON",
+                "ECM_ENABLE_SANITIZERS" : "'address;undefined'",
+                "KDDockWidgets_FUZZER" : "OFF",
+                "CMAKE_PREFIX_PATH" : "$env{QT6_DIR}"
             },
             "environment": {
                 "PATH": "$env{QT6_DIR}/bin:$penv{PATH}"
@@ -201,8 +206,8 @@
             "cacheVariables": {
                 "CMAKE_BUILD_TYPE": "Release",
                 "KDDockWidgets_QTQUICK": "ON",
-                "KDDockWidgets_QT6": "ON",
-                "CMAKE_PREFIX_PATH": "$env{QT6_DIR}"
+                 "KDDockWidgets_QT6": "ON",
+                 "CMAKE_PREFIX_PATH" : "$env{QT6_DIR}"
             },
             "environment": {
                 "PATH": "$env{QT6_DIR}/bin:$penv{PATH}"
@@ -216,16 +221,16 @@
             "cacheVariables": {
                 "CMAKE_BUILD_TYPE": "Debug",
                 "KDDockWidgets_QTQUICK": "ON",
-                "CMAKE_EXPORT_COMPILE_COMMANDS": "ON",
-                "KDDockWidgets_DEVELOPER_MODE": "ON",
-                "ECM_ENABLE_SANITIZERS": "'address;undefined'",
-                "KDDockWidgets_QT6": "ON",
-                "CMAKE_PREFIX_PATH": "$env{QT6_DIR}"
+                 "CMAKE_EXPORT_COMPILE_COMMANDS" : "ON",
+                 "KDDockWidgets_DEVELOPER_MODE": "ON",
+                 "ECM_ENABLE_SANITIZERS" : "'address;undefined'",
+                 "KDDockWidgets_QT6": "ON",
+                 "CMAKE_PREFIX_PATH" : "$env{QT6_DIR}"
             },
             "environment": {
                 "PATH": "$env{QT6_DIR}/bin:$penv{PATH}",
-                "QML2_IMPORT_PATH": "$env{QT6_DIR}/imports:$env{QT6_DIR}/qml",
-                "LD_LIBRARY_PATH": "$env{QT6_DIR}/lib"
+                "QML2_IMPORT_PATH" : "$env{QT6_DIR}/imports:$env{QT6_DIR}/qml",
+                "LD_LIBRARY_PATH" : "$env{QT6_DIR}/lib"
             }
         },
         {
@@ -236,10 +241,11 @@
             "cacheVariables": {
                 "CMAKE_BUILD_TYPE": "Debug",
                 "KDDockWidgets_DEVELOPER_MODE": "ON",
-                "CMAKE_EXPORT_COMPILE_COMMANDS": "ON"
+                "CMAKE_EXPORT_COMPILE_COMMANDS" : "ON",
+                "KDDockWidgets_FUZZER" : "ON"
             },
-            "warnings": {
-                "uninitialized": true
+            "warnings" : {
+                "uninitialized" : true
             },
             "environment": {
                 "CC": "clang-cl",
@@ -254,10 +260,11 @@
             "cacheVariables": {
                 "CMAKE_BUILD_TYPE": "Debug",
                 "KDDockWidgets_DEVELOPER_MODE": "ON",
+                "KDDockWidgets_FUZZER" : "OFF",
                 "KDDockWidgets_QTQUICK": "ON"
             },
-            "warnings": {
-                "uninitialized": true
+            "warnings" : {
+                "uninitialized" : true
             },
             "environment": {
                 "CC": "clang-cl",
@@ -272,11 +279,12 @@
             "cacheVariables": {
                 "CMAKE_BUILD_TYPE": "Debug",
                 "KDDockWidgets_DEVELOPER_MODE": "ON",
+                "KDDockWidgets_FUZZER" : "ON",
                 "KDDockWidgets_QT6": "ON",
-                "CMAKE_PREFIX_PATH": "$env{QT6_DIR}"
+                "CMAKE_PREFIX_PATH" : "$env{QT6_DIR}"
             },
-            "warnings": {
-                "uninitialized": true
+            "warnings" : {
+                "uninitialized" : true
             },
             "environment": {
                 "CC": "clang-cl",
@@ -292,19 +300,20 @@
             "cacheVariables": {
                 "CMAKE_BUILD_TYPE": "Debug",
                 "KDDockWidgets_DEVELOPER_MODE": "ON",
+                "KDDockWidgets_FUZZER" : "OFF",
                 "KDDockWidgets_QTQUICK": "ON",
                 "KDDockWidgets_QT6": "ON",
-                "CMAKE_PREFIX_PATH": "$env{QT6_DIR}"
+                "CMAKE_PREFIX_PATH" : "$env{QT6_DIR}"
             },
-            "warnings": {
-                "uninitialized": true
+            "warnings" : {
+                "uninitialized" : true
             },
             "environment": {
                 "CC": "clang-cl",
                 "CXX": "clang-cl",
                 "PATH": "$env{QT6_DIR}/bin:$penv{PATH}",
-                "QML2_IMPORT_PATH": "$env{QT6_DIR}/imports:$env{QT6_DIR}/qml",
-                "LD_LIBRARY_PATH": "$env{QT6_DIR}/lib"
+                "QML2_IMPORT_PATH" : "$env{QT6_DIR}/imports:$env{QT6_DIR}/qml",
+                "LD_LIBRARY_PATH" : "$env{QT6_DIR}/lib"
             }
         },
         {
@@ -315,17 +324,18 @@
             "cacheVariables": {
                 "CMAKE_BUILD_TYPE": "Debug",
                 "KDDockWidgets_DEVELOPER_MODE": "ON",
-                "CMAKE_EXPORT_COMPILE_COMMANDS": "ON",
-                "CMAKE_C_FLAGS_INIT": "-ftime-trace",
+                "CMAKE_EXPORT_COMPILE_COMMANDS" : "ON",
+                "KDDockWidgets_FUZZER" : "OFF",
+                "CMAKE_C_FLAGS_INIT" : "-ftime-trace",
                 "CMAKE_CXX_FLAGS_INIT": "-ftime-trace"
             },
-            "warnings": {
-                "uninitialized": true
+            "warnings" : {
+                "uninitialized" : true
             },
             "environment": {
                 "CC": "clang",
                 "CXX": "clang++",
-                "CCACHE_DISABLE": "ON"
+                "CCACHE_DISABLE" : "ON"
             }
         },
         {
@@ -336,18 +346,19 @@
             "cacheVariables": {
                 "CMAKE_BUILD_TYPE": "Debug",
                 "KDDockWidgets_DEVELOPER_MODE": "ON",
-                "CMAKE_EXPORT_COMPILE_COMMANDS": "ON",
-                "KDDockWidgets_QT6": "ON",
-                "CMAKE_C_FLAGS_INIT": "-ftime-trace",
+                "CMAKE_EXPORT_COMPILE_COMMANDS" : "ON",
+                "KDDockWidgets_FUZZER" : "OFF",
+                "KDDockWidgets_QT6" : "ON",
+                "CMAKE_C_FLAGS_INIT" : "-ftime-trace",
                 "CMAKE_CXX_FLAGS_INIT": "-ftime-trace"
             },
-            "warnings": {
-                "uninitialized": true
+            "warnings" : {
+                "uninitialized" : true
             },
             "environment": {
                 "CC": "clang",
                 "CXX": "clang++",
-                "CCACHE_DISABLE": "ON"
+                "CCACHE_DISABLE" : "ON"
             }
         },
         {
@@ -448,23 +459,17 @@
         },
         {
             "name": "ci-static",
-            "inherits": [
-                "static"
-            ],
+            "inherits":["static"],
             "binaryDir": "${sourceDir}/build-ci-static"
         },
         {
             "name": "ci-static-qtquick",
-            "inherits": [
-                "static-qtquick"
-            ],
+            "inherits":["static-qtquick"],
             "binaryDir": "${sourceDir}/build-ci-static-qtquick"
         },
         {
             "name": "ci-python",
-            "inherits": [
-                "python"
-            ],
+            "inherits":["python"],
             "binaryDir": "${sourceDir}/build-python"
         }
     ],
@@ -473,16 +478,16 @@
             "name": "clazy",
             "configurePreset": "clazy",
             "environment": {
-                "CLAZY_CHECKS": "level2,detaching-member,heap-allocated-small-trivial-type,isempty-vs-count,qstring-varargs,qvariant-template-instantiation,raw-environment-function,reserve-candidates,signal-with-return-value,thread-with-slots,no-ctor-missing-parent-argument,no-missing-typeinfo",
-                "CCACHE_DISABLE": "ON"
+                "CLAZY_CHECKS" : "level2,detaching-member,heap-allocated-small-trivial-type,isempty-vs-count,qstring-varargs,qvariant-template-instantiation,raw-environment-function,reserve-candidates,signal-with-return-value,thread-with-slots,no-ctor-missing-parent-argument,no-missing-typeinfo",
+                "CCACHE_DISABLE" : "ON"
             }
         },
         {
             "name": "clazy-qtquick",
             "configurePreset": "clazy-qtquick",
             "environment": {
-                "CLAZY_CHECKS": "level2,detaching-member,heap-allocated-small-trivial-type,isempty-vs-count,qstring-varargs,qvariant-template-instantiation,raw-environment-function,reserve-candidates,signal-with-return-value,thread-with-slots,no-ctor-missing-parent-argument,no-missing-typeinfo",
-                "CCACHE_DISABLE": "ON"
+                "CLAZY_CHECKS" : "level2,detaching-member,heap-allocated-small-trivial-type,isempty-vs-count,qstring-varargs,qvariant-template-instantiation,raw-environment-function,reserve-candidates,signal-with-return-value,thread-with-slots,no-ctor-missing-parent-argument,no-missing-typeinfo",
+                "CCACHE_DISABLE" : "ON"
             }
         }
     ]

Changelog

@@ -1,21 +1,7 @@
-* v1.7.1 (unreleased)
- - Fixed pin button appearing by mistake when using Flag_TitleBarNoFloatButton (#359)
-
-* v1.7.0 (03 May 2023)
+* v1.7.0 (unreleased)
  - Introduce DockWidget::setFloatingWindowFlags(flags). Allows for different
    FloatingWindows to have different window flags. For example, some having
    Qt::Tool while others having Qt::Window (#314).
- - Fixed fixed-sized windows being able to be resized on Windows (#345)
- - Allow restoring layouts without touching floating dock widgets
- - Fix setDropIndicatorsInhibited(false) not showing drop indicators (#334, #337)
- - Fix relayouting when dock widget is deleted directly (#336)
- - Minor performance improvement: Cache TitleBar icons
- - Save side bar overlay geometry when frame is resized
- - Fixed case of corrupt layout when using setDockWidgetFactoryFunc()
- - Fix layout scaling factor when main window is native
- - Fix moving floating windows to negative positions (#321)
- - Fixed using normal geometry of platform window if fractional scaling is enabled
- - Allow to specify Qt::Tool or Qt::Window per floating window
 
 * v1.6.0 (14 September 2022)
  - Minimum Qt6 version is now 6.2.0

README-QtQuick.md

@@ -1,3 +1,19 @@
 # KDDockWidgets and QtQuick
 
-Please use branch 2.0 for QtQuick support.
+## Supported Qt versions and toolchains
+
+KDDockWidgets for QtQuick requires a C++17 capable compiler and Qt >= 6.2.1.
+
+Qt 5.15.2 will probably also work, but it's not built and tested by KDAB CI, we
+advise users to move to Qt6 as soon as possible.
+
+## Troubleshooting
+
+- QtGraphicalEffects is not supported, as it's buggy when moving between different QWindows.
+  See for example QTBUG-94943, KDDockWidgets issue #213. Also search the Qt bug tracker
+  for "QQuickItem: Cannot use same item on different windows at the same time"
+
+- Very rarely, in some Nvidia/X11 setups, floating/docking has noticeable lag (like 1 second)
+  This could be solved by going to Nvidia's settings and making sure all monitors have
+  the same refresh rate and disabling "Allow Flipping". It's not known why this solves it. Might also
+  be a bug in Qt.

README-bindings.md

@@ -29,7 +29,7 @@ As this time, you cannot get shiboken2-generator because the wheels are not on P
 To use the wheels do this:
 
 ```bash
-% python3 -m pip install \
+% pip3 install \
     --index-url=http://download.qt.io/official_releases/QtForPython/ \
     --trusted-host download.qt.io \
     shiboken2 pyside2 shiboken2_generator
@@ -40,7 +40,7 @@ For more info visit <https://doc.qt.io/qtforpython/shiboken2/gettingstarted.html
 afterwards run:
 
 ```bash
-python3 -m pip list | grep PySide
+pip3 list | grep PySide
 ```
 
 Note the version *must* match the same Qt you intend to use when building KDDockWidgets.
@@ -48,7 +48,7 @@ Note the version *must* match the same Qt you intend to use when building KDDock
 ## Install PySide6 for Qt6
 
 Follow the same instructions as [the previous section](#Install PySide2 for Qt5),
-except installing `shiboken6 pyside6 shiboken6_generator` with pip.
+except installing `shiboken6 pyside6 shiboken6_generator` with pip3.
 
 ## Building KDDockWidgets Python Bindings
 
@@ -79,14 +79,6 @@ To run the KDDW python example
 
 ### Build Issues
 
-- You can override the default Python3 version found by CMake (usually the
-  newest version available) by passing the Python3_EXECUTABLE value to CMake,
-  i.e.
-
-```bash
-    cmake -DPython3_EXECUTABLE=/usr/bin/python3.10 ....
-```
-
 - If you see errors like "Unable to locate Clang's built-in include directory"
   then first mROUBLESHOOTINGake sure you have llvm installed.  If you still have problems try
   setting the environment variable `LLVM_INSTALL_DIR` to point to your llvm installation.

README.md

@@ -62,6 +62,7 @@ creative with their requests, so it was clear we needed a better docking framewo
 - Clean codebase
   - Not mixing GUI with state with logic with animations
   - Great test coverage, even the GUI and DnD operations are tested. 200 tests currently.
+  - Fuzzer for doing random testing and finding bugs
 - Lazy separator resize
 - Reordering tabs with mouse
 - Partial layout save/restore, affecting only a chosen sub-set

cmake/KDAB/modules/FindPySide2.cmake

@@ -23,9 +23,18 @@ set(PYSIDE2_FOUND FALSE)
 if(PYSIDE2_PRIV_FOUND)
     set(PYSIDE2_FOUND TRUE)
     message(STATUS "Using PySide2 found in the system!")
-    pkg_get_variable(SHIBOKEN_BINARY pyside2 generator_location)
-    pkg_get_variable(PYSIDE2_BASEDIR pyside2 typesystemdir)
-    pkg_get_variable(PYSIDE_INCLUDE_DIR pyside2 includedir)
+    pkg_get_variable(SHIBOKEN_BINARY
+        pyside2
+        generator_location
+    )
+    pkg_get_variable(PYSIDE2_BASEDIR
+        pyside2
+        typesystemdir
+    )
+    pkg_get_variable(PYSIDE_INCLUDE_DIR
+        pyside2
+        includedir
+    )
     set(PYSIDE_TYPESYSTEMS ${PYSIDE2_BASEDIR})
     set(PYSIDE2_SO_VERSION ${PYSIDE2_PRIV_VERSION})
     set(PYSIDE_LIBRARY ${PYSIDE2_PRIV_LINK_LIBRARIES})
@@ -36,8 +45,7 @@ else()
     get_filename_component(PYTHON_LIBRARY_FILENAME ${PYTHON_LIBRARY_FILENAME} NAME)
 
     execute_process(
-        COMMAND
-            ${Python3_EXECUTABLE} -c "if True:
+        COMMAND ${Python3_EXECUTABLE} -c "if True:
             import os, sys
             try:
               import PySide2.QtCore as QtCore
@@ -50,18 +58,16 @@ else()
         OUTPUT_STRIP_TRAILING_WHITESPACE
     )
     if(NOT PYSIDE2_BASEDIR)
-        message(FATAL_ERROR "The PySide2 module could not be imported. Make sure you have it installed "
-                            "by checking the output of \"pip${Python3_VERSION_MAJOR}.${Python3_VERSION_MINOR} list\""
+        message(
+            FATAL_ERROR
+                "The PySide2 module could not be imported. Make sure you have it installed "
+                "by checking the output of \"pip${Python3_VERSION_MAJOR}.${Python3_VERSION_MINOR} list\""
         )
     endif()
 
-    set(PYSIDE_BASEDIR
-        ${PYSIDE2_BASEDIR}
-        CACHE PATH "Top level install of PySide2" FORCE
-    )
+    set(PYSIDE_BASEDIR ${PYSIDE2_BASEDIR} CACHE PATH "Top level install of PySide2" FORCE)
     execute_process(
-        COMMAND
-            ${Python3_EXECUTABLE} -c "if True:
+        COMMAND ${Python3_EXECUTABLE} -c "if True:
             import os
             import PySide2.QtCore as QtCore
             print(os.path.basename(QtCore.__file__).split('.', 1)[1])
@@ -71,8 +77,7 @@ else()
     )
 
     execute_process(
-        COMMAND
-            ${Python3_EXECUTABLE} -c "if True:
+        COMMAND ${Python3_EXECUTABLE} -c "if True:
             import os
             import PySide2.QtCore as QtCore
             print(';'.join(map(str, QtCore.__version_info__)))
@@ -98,17 +103,10 @@ else()
 
     #PySide
     #===============================================================================
-    if(PYSIDE_CUSTOM_PREFIX STREQUAL "")
-        set(PYSIDE_CUSTOM_PREFIX ${PYSIDE2_BASEDIR})
-    endif()
-
-    find_path(
-        PYSIDE_INCLUDE_DIR pyside.h
+    find_path(PYSIDE_INCLUDE_DIR
+        pyside.h
         PATHS ${PYSIDE2_BASEDIR}/include ${PYSIDE_CUSTOM_PREFIX}/include/PySide2
-        NO_DEFAULT_PATH
-        NO_CACHE
-        NO_SYSTEM_ENVIRONMENT_PATH
-    )
+        NO_DEFAULT_PATH)
 
     # Platform specific library names
     if(MSVC)
@@ -121,17 +119,15 @@ else()
         set(PYSIDE_LIBRARY_BASENAMES "libpyside2.${PYSIDE2_SUFFIX}")
     endif()
 
-    find_file(
-        PYSIDE_LIBRARY ${PYSIDE_LIBRARY_BASENAMES}
+    find_file(PYSIDE_LIBRARY
+        ${PYSIDE_LIBRARY_BASENAMES}
         PATHS ${PYSIDE2_BASEDIR} ${PYSIDE_CUSTOM_PREFIX}/lib
-        NO_DEFAULT_PATH
-    )
+        NO_DEFAULT_PATH)
 
-    find_path(
-        PYSIDE_TYPESYSTEMS typesystem_core.xml
+    find_path(PYSIDE_TYPESYSTEMS
+        typesystem_core.xml
         PATHS ${PYSIDE2_BASEDIR}/typesystems ${PYSIDE_CUSTOM_PREFIX}/share/PySide2/typesystems
-        NO_DEFAULT_PATH
-    )
+        NO_DEFAULT_PATH)
 endif()
 
 if(PYSIDE2_FOUND)
@@ -146,20 +142,17 @@ if(PYSIDE2_FOUND)
         set_property(TARGET PySide2::pyside2 PROPERTY IMPORTED_IMPLIB ${PYSIDE_LIBRARY})
     endif()
     set_property(TARGET PySide2::pyside2 PROPERTY IMPORTED_LOCATION ${PYSIDE_LIBRARY})
-    set_property(
-        TARGET PySide2::pyside2
-        APPEND
-        PROPERTY INTERFACE_INCLUDE_DIRECTORIES
-                 ${PYSIDE_INCLUDE_DIR}
-                 ${PYSIDE_INCLUDE_DIR}/QtCore/
-                 ${PYSIDE_INCLUDE_DIR}/QtGui/
-                 ${PYSIDE_INCLUDE_DIR}/QtWidgets/
-                 ${Python3_INCLUDE_DIRS}
+    set_property(TARGET PySide2::pyside2 APPEND PROPERTY
+        INTERFACE_INCLUDE_DIRECTORIES
+        ${PYSIDE_INCLUDE_DIR}
+        ${PYSIDE_INCLUDE_DIR}/QtCore/
+        ${PYSIDE_INCLUDE_DIR}/QtGui/
+        ${PYSIDE_INCLUDE_DIR}/QtWidgets/
+        ${Python3_INCLUDE_DIRS}
     )
 endif()
 
-find_package_handle_standard_args(
-    PySide2
+find_package_handle_standard_args(PySide2
     REQUIRED_VARS PYSIDE2_BASEDIR PYSIDE_INCLUDE_DIR PYSIDE_LIBRARY PYSIDE_TYPESYSTEMS
     VERSION_VAR PYSIDE2_SO_VERSION
 )

cmake/KDAB/modules/FindPySide6.cmake

@@ -20,8 +20,7 @@ list(GET Python3_LIBRARIES 0 PYTHON_LIBRARY_FILENAME)
 get_filename_component(PYTHON_LIBRARY_FILENAME ${PYTHON_LIBRARY_FILENAME} NAME)
 
 execute_process(
-    COMMAND
-        ${Python3_EXECUTABLE} -c "if True:
+    COMMAND ${Python3_EXECUTABLE} -c "if True:
         import os, sys
         try:
             import PySide6.QtCore as QtCore
@@ -34,19 +33,17 @@ execute_process(
     OUTPUT_STRIP_TRAILING_WHITESPACE
 )
 if(NOT PYSIDE6_BASEDIR)
-    message(FATAL_ERROR "The PySide6 module could not be imported. Make sure you have it installed "
-                        "by checking the output of \"pip${Python3_VERSION_MAJOR}.${Python3_VERSION_MINOR} list\""
+    message(
+        FATAL_ERROR
+            "The PySide6 module could not be imported. Make sure you have it installed "
+            "by checking the output of \"pip${Python3_VERSION_MAJOR}.${Python3_VERSION_MINOR} list\""
     )
 endif()
 
 if(PYSIDE6_BASEDIR)
-    set(PYSIDE_BASEDIR
-        ${PYSIDE6_BASEDIR}
-        CACHE PATH "Top level install of PySide6" FORCE
-    )
+    set(PYSIDE_BASEDIR ${PYSIDE6_BASEDIR} CACHE PATH "Top level install of PySide6" FORCE)
     execute_process(
-        COMMAND
-            ${Python3_EXECUTABLE} -c "if True:
+        COMMAND ${Python3_EXECUTABLE} -c "if True:
             import os
             import PySide6.QtCore as QtCore
             print(os.path.basename(QtCore.__file__).split('.', 1)[1])
@@ -56,8 +53,7 @@ if(PYSIDE6_BASEDIR)
     )
 
     execute_process(
-        COMMAND
-            ${Python3_EXECUTABLE} -c "if True:
+        COMMAND ${Python3_EXECUTABLE} -c "if True:
             import os
             import PySide6.QtCore as QtCore
             print(';'.join(map(str, QtCore.__version_info__)))
@@ -85,11 +81,10 @@ endif()
 if(PYSIDE6_FOUND)
     #PySide
     #===============================================================================
-    find_path(
-        PYSIDE_INCLUDE_DIR pyside.h
+    find_path(PYSIDE_INCLUDE_DIR
+        pyside.h
         PATHS ${PYSIDE6_BASEDIR}/include ${PYSIDE_CUSTOM_PREFIX}/include/PySide6
-        NO_DEFAULT_PATH
-    )
+        NO_DEFAULT_PATH)
 
     # Platform specific library names
     if(MSVC)
@@ -102,17 +97,15 @@ if(PYSIDE6_FOUND)
         set(PYSIDE_LIBRARY_BASENAMES "libpyside6.${PYSIDE6_SUFFIX}")
     endif()
 
-    find_file(
-        PYSIDE_LIBRARY ${PYSIDE_LIBRARY_BASENAMES}
+    find_file(PYSIDE_LIBRARY
+        ${PYSIDE_LIBRARY_BASENAMES}
         PATHS ${PYSIDE6_BASEDIR} ${PYSIDE_CUSTOM_PREFIX}/lib
-        NO_DEFAULT_PATH
-    )
+        NO_DEFAULT_PATH)
 
-    find_path(
-        PYSIDE_TYPESYSTEMS typesystem_core.xml
+    find_path(PYSIDE_TYPESYSTEMS
+        typesystem_core.xml
         PATHS ${PYSIDE6_BASEDIR}/typesystems ${PYSIDE_CUSTOM_PREFIX}/share/PySide6/typesystems
-        NO_DEFAULT_PATH
-    )
+        NO_DEFAULT_PATH)
 endif()
 
 if(PYSIDE6_FOUND)
@@ -127,20 +120,17 @@ if(PYSIDE6_FOUND)
         set_property(TARGET PySide6::pyside6 PROPERTY IMPORTED_IMPLIB ${PYSIDE_LIBRARY})
     endif()
     set_property(TARGET PySide6::pyside6 PROPERTY IMPORTED_LOCATION ${PYSIDE_LIBRARY})
-    set_property(
-        TARGET PySide6::pyside6
-        APPEND
-        PROPERTY INTERFACE_INCLUDE_DIRECTORIES
-                 ${PYSIDE_INCLUDE_DIR}
-                 ${PYSIDE_INCLUDE_DIR}/QtCore/
-                 ${PYSIDE_INCLUDE_DIR}/QtGui/
-                 ${PYSIDE_INCLUDE_DIR}/QtWidgets/
-                 ${Python3_INCLUDE_DIRS}
+    set_property(TARGET PySide6::pyside6 APPEND PROPERTY
+        INTERFACE_INCLUDE_DIRECTORIES
+        ${PYSIDE_INCLUDE_DIR}
+        ${PYSIDE_INCLUDE_DIR}/QtCore/
+        ${PYSIDE_INCLUDE_DIR}/QtGui/
+        ${PYSIDE_INCLUDE_DIR}/QtWidgets/
+        ${Python3_INCLUDE_DIRS}
     )
 endif()
 
-find_package_handle_standard_args(
-    PySide6
+find_package_handle_standard_args(PySide6
     REQUIRED_VARS PYSIDE6_BASEDIR PYSIDE_INCLUDE_DIR PYSIDE_LIBRARY PYSIDE_TYPESYSTEMS
     VERSION_VAR PYSIDE6_SO_VERSION
 )

cmake/KDAB/modules/FindShiboken2.cmake

@@ -24,15 +24,23 @@ set(SHIBOKEN_FOUND FALSE)
 if(SHIBOKEN2_PRIV_FOUND)
     set(SHIBOKEN_FOUND TRUE)
     message(STATUS "Using shiboken found in the system!")
-    pkg_get_variable(SHIBOKEN_BINARY shiboken2 generator_location)
-    pkg_get_variable(SHIBOKEN_BASEDIR shiboken2 libdir)
-    pkg_get_variable(SHIBOKEN_INCLUDE_DIR shiboken2 includedir)
+    pkg_get_variable(SHIBOKEN_BINARY
+        shiboken2
+        generator_location
+    )
+    pkg_get_variable(SHIBOKEN_BASEDIR
+        shiboken2
+        libdir
+    )
+    pkg_get_variable(SHIBOKEN_INCLUDE_DIR
+        shiboken2
+        includedir
+    )
     set(SHIBOKEN_VERSION ${SHIBOKEN2_PRIV_VERSION})
     set(SHIBOKEN_LIBRARY ${SHIBOKEN2_PRIV_LINK_LIBRARIES})
 else()
     execute_process(
-        COMMAND
-            ${Python3_EXECUTABLE} -c "if True:
+        COMMAND ${Python3_EXECUTABLE} -c "if True:
             import os
             try:
                 import shiboken2_generator
@@ -44,13 +52,14 @@ else()
         OUTPUT_STRIP_TRAILING_WHITESPACE
     )
     if(NOT SHIBOKEN_GENERATOR_BASEDIR)
-        message(FATAL_ERROR "The shiboken2_generator module could not be imported. Make sure you have it installed "
-                            "by checking the output of \"pip${Python3_VERSION_MAJOR}.${Python3_VERSION_MINOR} list\""
+        message(
+            FATAL_ERROR
+            "The shiboken2_generator module could not be imported. Make sure you have it installed "
+            "by checking the output of \"pip${Python3_VERSION_MAJOR}.${Python3_VERSION_MINOR} list\""
         )
     endif()
     execute_process(
-        COMMAND
-            ${Python3_EXECUTABLE} -c "if True:
+        COMMAND ${Python3_EXECUTABLE} -c "if True:
             import os
             try:
                 import shiboken2
@@ -62,13 +71,14 @@ else()
         OUTPUT_STRIP_TRAILING_WHITESPACE
     )
     if(NOT SHIBOKEN_BASEDIR)
-        message(FATAL_ERROR "The shiboken2 module could not be imported. Make sure you have it installed "
-                            "by checking the output of \"pip${Python3_VERSION_MAJOR}.${Python3_VERSION_MINOR} list\""
+        message(
+            FATAL_ERROR
+            "The shiboken2 module could not be imported. Make sure you have it installed "
+            "by checking the output of \"pip${Python3_VERSION_MAJOR}.${Python3_VERSION_MINOR} list\""
         )
     endif()
     execute_process(
-        COMMAND
-            ${Python3_EXECUTABLE} -c "if True:
+        COMMAND ${Python3_EXECUTABLE} -c "if True:
             import os
             import shiboken2
             print(';'.join(filter(None, map(str, shiboken2.__version_info__))))
@@ -81,21 +91,15 @@ else()
     list(GET SHIBOKEN_VERSION 2 SHIBOKEN_MINOR_VERSION)
     string(REPLACE ";" "." SHIBOKEN_VERSION "${SHIBOKEN_VERSION}")
 
-    if(SHIBOKEN_CUSTOM_PREFIX STREQUAL "")
-        set(SHIBOKEN_CUSTOM_PREFIX ${SHIBOKEN_GENERATOR_BASEDIR})
-    endif()
-
     message(STATUS "ShibokenGenerator base dir: ${SHIBOKEN_GENERATOR_BASEDIR}")
     message(STATUS "Shiboken base dir:          ${SHIBOKEN_BASEDIR}")
-    message(STATUS "Shiboken custom path:       [${SHIBOKEN_CUSTOM_PREFIX}]")
+    message(STATUS "Shiboken custom path:       ${SHIBOKEN_CUSTOM_PREFIX}")
 
     if(SHIBOKEN_BASEDIR)
-        find_path(
-            SHIBOKEN_INCLUDE_DIR shiboken.h
+        find_path(SHIBOKEN_INCLUDE_DIR
+            shiboken.h
             PATHS ${SHIBOKEN_CUSTOM_PREFIX} ${SHIBOKEN_GENERATOR_BASEDIR}/include
             NO_DEFAULT_PATH
-            NO_CACHE
-            NO_SYSTEM_ENVIRONMENT_PATH
         )
         if(MSVC)
             set(SHIBOKEN_LIBRARY_BASENAMES "shiboken2.abi3.lib")
@@ -105,13 +109,15 @@ else()
             set(SHIBOKEN_LIBRARY_BASENAMES "libshiboken2.${PYSIDE2_SUFFIX}")
         elseif(APPLE)
             set(SHIBOKEN_LIBRARY_BASENAMES
-                libshiboken2.abi3.dylib libshiboken2.abi3.${SHIBOKEN_MACRO_VERSION}.dylib
+                libshiboken2.abi3.dylib
+                libshiboken2.abi3.${SHIBOKEN_MACRO_VERSION}.dylib
                 libshiboken2.abi3.${SHIBOKEN_MACRO_VERSION}.${SHIBOKEN_MICRO_VERSION}.dylib
                 libshiboken2.abi3.${SHIBOKEN_VERSION}.dylib
             )
         else()
             set(SHIBOKEN_LIBRARY_BASENAMES
-                libshiboken2.abi3.so libshiboken2.abi3.so.${SHIBOKEN_MACRO_VERSION}
+                libshiboken2.abi3.so
+                libshiboken2.abi3.so.${SHIBOKEN_MACRO_VERSION}
                 libshiboken2.abi3.so.${SHIBOKEN_MACRO_VERSION}.${SHIBOKEN_MICRO_VERSION}
                 libshiboken2.abi3.so.${SHIBOKEN_VERSION}
             )
@@ -123,35 +129,29 @@ else()
         set(SHIBOKEN_SEARCH_PATHS ${SHIBOKEN_CUSTOM_PREFIX})
         list(APPEND SHIBOKEN_SEARCH_PATHS ${SHIBOKEN_BASEDIR})
         list(APPEND SHIBOKEN_SEARCH_PATHS ${SHIBOKEN_GENERATOR_BASEDIR})
-        find_file(
-            SHIBOKEN_LIBRARY ${SHIBOKEN_LIBRARY_BASENAMES}
+        find_file(SHIBOKEN_LIBRARY
+            ${SHIBOKEN_LIBRARY_BASENAMES}
             PATHS ${SHIBOKEN_SEARCH_PATHS}
-            NO_DEFAULT_PATH
-        )
+            NO_DEFAULT_PATH)
 
-        find_program(
-            SHIBOKEN_BINARY shiboken2
+        find_program(SHIBOKEN_BINARY
+            shiboken2
             PATHS ${SHIBOKEN_SEARCH_PATHS}
             NO_DEFAULT_PATH
         )
     endif()
-    if(SHIBOKEN_INCLUDE_DIR
-       AND SHIBOKEN_LIBRARY
-       AND SHIBOKEN_BINARY
-    )
+    if(SHIBOKEN_INCLUDE_DIR AND SHIBOKEN_LIBRARY AND SHIBOKEN_BINARY)
         set(SHIBOKEN_FOUND TRUE)
     endif()
 
     if(SHIBOKEN_FOUND)
-
     endif()
 
     if(MSVC)
         # On Windows we must link to python3.dll that is a small library that links against python3x.dll
         # that allow us to choose any python3x.dll at runtime
         execute_process(
-            COMMAND
-                ${Python3_EXECUTABLE} -c "if True:
+            COMMAND ${Python3_EXECUTABLE} -c "if True:
                 for lib in '${Python3_LIBRARIES}'.split(';'):
                     if '/' in lib:
                         prefix, py = lib.rsplit('/', 1)
@@ -177,18 +177,15 @@ if(SHIBOKEN_FOUND)
     # Create shiboke2 target
     add_library(Shiboken2::libshiboken SHARED IMPORTED GLOBAL)
     if(MSVC)
-        set_property(TARGET Shiboken2::libshiboken PROPERTY IMPORTED_IMPLIB ${SHIBOKEN_LIBRARY})
+        set_property(TARGET Shiboken2::libshiboken PROPERTY
+            IMPORTED_IMPLIB ${SHIBOKEN_LIBRARY})
     endif()
     set_property(TARGET Shiboken2::libshiboken PROPERTY IMPORTED_LOCATION ${SHIBOKEN_LIBRARY})
-    set_property(
-        TARGET Shiboken2::libshiboken
-        APPEND
-        PROPERTY INTERFACE_INCLUDE_DIRECTORIES ${SHIBOKEN_INCLUDE_DIR} ${Python3_INCLUDE_DIRS}
+    set_property(TARGET Shiboken2::libshiboken APPEND PROPERTY
+        INTERFACE_INCLUDE_DIRECTORIES ${SHIBOKEN_INCLUDE_DIR} ${Python3_INCLUDE_DIRS}
     )
-    set_property(
-        TARGET Shiboken2::libshiboken
-        APPEND
-        PROPERTY INTERFACE_LINK_LIBRARIES ${PYTHON_LIMITED_LIBRARIES}
+    set_property(TARGET Shiboken2::libshiboken APPEND PROPERTY
+        INTERFACE_LINK_LIBRARIES ${PYTHON_LIMITED_LIBRARIES}
     )
 
     # Generator target
@@ -196,8 +193,8 @@ if(SHIBOKEN_FOUND)
     set_property(TARGET Shiboken2::shiboken PROPERTY IMPORTED_LOCATION ${SHIBOKEN_BINARY})
 endif()
 
-find_package_handle_standard_args(
-    Shiboken2
+find_package_handle_standard_args(Shiboken2
     REQUIRED_VARS SHIBOKEN_BASEDIR SHIBOKEN_INCLUDE_DIR SHIBOKEN_LIBRARY SHIBOKEN_BINARY
     VERSION_VAR SHIBOKEN_VERSION
 )
+

cmake/KDAB/modules/FindShiboken6.cmake

@@ -17,8 +17,7 @@
 set(SHIBOKEN_FOUND FALSE)
 
 execute_process(
-    COMMAND
-        ${Python3_EXECUTABLE} -c "if True:
+    COMMAND ${Python3_EXECUTABLE} -c "if True:
         import os
         try:
             import shiboken6_generator
@@ -30,13 +29,14 @@ execute_process(
     OUTPUT_STRIP_TRAILING_WHITESPACE
 )
 if(NOT SHIBOKEN_GENERATOR_BASEDIR)
-    message(FATAL_ERROR "The shiboken6_generator module could not be imported. Make sure you have it installed "
-                        "by checking the output of \"pip${Python3_VERSION_MAJOR}.${Python3_VERSION_MINOR} list\""
+    message(
+        FATAL_ERROR
+            "The shiboken6_generator module could not be imported. Make sure you have it installed "
+            "by checking the output of \"pip${Python3_VERSION_MAJOR}.${Python3_VERSION_MINOR} list\""
     )
 endif()
 execute_process(
-    COMMAND
-        ${Python3_EXECUTABLE} -c "if True:
+    COMMAND ${Python3_EXECUTABLE} -c "if True:
         import os
         try:
             import shiboken6
@@ -48,13 +48,14 @@ execute_process(
     OUTPUT_STRIP_TRAILING_WHITESPACE
 )
 if(NOT SHIBOKEN_BASEDIR)
-    message(FATAL_ERROR "The shiboken6 module could not be imported. Make sure you have it installed "
-                        "by checking the output of \"pip${Python3_VERSION_MAJOR}.${Python3_VERSION_MINOR} list\""
+    message(
+        FATAL_ERROR
+            "The shiboken6 module could not be imported. Make sure you have it installed "
+            "by checking the output of \"pip${Python3_VERSION_MAJOR}.${Python3_VERSION_MINOR} list\""
     )
 endif()
 execute_process(
-    COMMAND
-        ${Python3_EXECUTABLE} -c "if True:
+    COMMAND ${Python3_EXECUTABLE} -c "if True:
         import os
         import shiboken6
         print(';'.join(filter(None, map(str, shiboken6.__version_info__))))
@@ -72,8 +73,8 @@ message(STATUS "Shiboken base dir:          ${SHIBOKEN_BASEDIR}")
 message(STATUS "Shiboken custom path:       ${SHIBOKEN_CUSTOM_PREFIX}")
 
 if(SHIBOKEN_BASEDIR)
-    find_path(
-        SHIBOKEN_INCLUDE_DIR shiboken.h
+    find_path(SHIBOKEN_INCLUDE_DIR
+        shiboken.h
         PATHS ${SHIBOKEN_CUSTOM_PREFIX} ${SHIBOKEN_GENERATOR_BASEDIR}/include
         NO_DEFAULT_PATH
     )
@@ -85,13 +86,15 @@ if(SHIBOKEN_BASEDIR)
         set(SHIBOKEN_LIBRARY_BASENAMES "libshiboken6.${PYSIDE2_SUFFIX}")
     elseif(APPLE)
         set(SHIBOKEN_LIBRARY_BASENAMES
-            libshiboken6.abi3.dylib libshiboken6.abi3.${SHIBOKEN_MACRO_VERSION}.dylib
+            libshiboken6.abi3.dylib
+            libshiboken6.abi3.${SHIBOKEN_MACRO_VERSION}.dylib
             libshiboken6.abi3.${SHIBOKEN_MACRO_VERSION}.${SHIBOKEN_MICRO_VERSION}.dylib
             libshiboken6.abi3.${SHIBOKEN_VERSION}.dylib
         )
     else()
         set(SHIBOKEN_LIBRARY_BASENAMES
-            libshiboken6.abi3.so libshiboken6.abi3.so.${SHIBOKEN_MACRO_VERSION}
+            libshiboken6.abi3.so
+            libshiboken6.abi3.so.${SHIBOKEN_MACRO_VERSION}
             libshiboken6.abi3.so.${SHIBOKEN_MACRO_VERSION}.${SHIBOKEN_MICRO_VERSION}
             libshiboken6.abi3.so.${SHIBOKEN_VERSION}
         )
@@ -103,35 +106,29 @@ if(SHIBOKEN_BASEDIR)
     set(SHIBOKEN_SEARCH_PATHS ${SHIBOKEN_CUSTOM_PREFIX})
     list(APPEND SHIBOKEN_SEARCH_PATHS ${SHIBOKEN_BASEDIR})
     list(APPEND SHIBOKEN_SEARCH_PATHS ${SHIBOKEN_GENERATOR_BASEDIR})
-    find_file(
-        SHIBOKEN_LIBRARY ${SHIBOKEN_LIBRARY_BASENAMES}
+    find_file(SHIBOKEN_LIBRARY
+        ${SHIBOKEN_LIBRARY_BASENAMES}
         PATHS ${SHIBOKEN_SEARCH_PATHS}
-        NO_DEFAULT_PATH
-    )
+        NO_DEFAULT_PATH)
 
-    find_program(
-        SHIBOKEN_BINARY shiboken6
+    find_program(SHIBOKEN_BINARY
+        shiboken6
         PATHS ${SHIBOKEN_SEARCH_PATHS}
         NO_DEFAULT_PATH
     )
 endif()
-if(SHIBOKEN_INCLUDE_DIR
-   AND SHIBOKEN_LIBRARY
-   AND SHIBOKEN_BINARY
-)
+if(SHIBOKEN_INCLUDE_DIR AND SHIBOKEN_LIBRARY AND SHIBOKEN_BINARY)
     set(SHIBOKEN_FOUND TRUE)
 endif()
 
 if(SHIBOKEN_FOUND)
-
 endif()
 
 if(MSVC)
     # On Windows we must link to python3.dll that is a small library that links against python3x.dll
     # that allow us to choose any python3x.dll at runtime
     execute_process(
-        COMMAND
-            ${Python3_EXECUTABLE} -c "if True:
+        COMMAND ${Python3_EXECUTABLE} -c "if True:
             for lib in '${Python3_LIBRARIES}'.split(';'):
                 if '/' in lib:
                     prefix, py = lib.rsplit('/', 1)
@@ -157,18 +154,15 @@ if(SHIBOKEN_FOUND)
     # Create shiboken2 target
     add_library(Shiboken6::libshiboken SHARED IMPORTED GLOBAL)
     if(MSVC)
-        set_property(TARGET Shiboken6::libshiboken PROPERTY IMPORTED_IMPLIB ${SHIBOKEN_LIBRARY})
+        set_property(TARGET Shiboken6::libshiboken PROPERTY
+            IMPORTED_IMPLIB ${SHIBOKEN_LIBRARY})
     endif()
     set_property(TARGET Shiboken6::libshiboken PROPERTY IMPORTED_LOCATION ${SHIBOKEN_LIBRARY})
-    set_property(
-        TARGET Shiboken6::libshiboken
-        APPEND
-        PROPERTY INTERFACE_INCLUDE_DIRECTORIES ${SHIBOKEN_INCLUDE_DIR} ${Python3_INCLUDE_DIRS}
+    set_property(TARGET Shiboken6::libshiboken APPEND PROPERTY
+        INTERFACE_INCLUDE_DIRECTORIES ${SHIBOKEN_INCLUDE_DIR} ${Python3_INCLUDE_DIRS}
     )
-    set_property(
-        TARGET Shiboken6::libshiboken
-        APPEND
-        PROPERTY INTERFACE_LINK_LIBRARIES ${PYTHON_LIMITED_LIBRARIES}
+    set_property(TARGET Shiboken6::libshiboken APPEND PROPERTY
+        INTERFACE_LINK_LIBRARIES ${PYTHON_LIMITED_LIBRARIES}
     )
 
     # Generator target
@@ -181,3 +175,4 @@ find_package_handle_standard_args(
     REQUIRED_VARS SHIBOKEN_BASEDIR SHIBOKEN_INCLUDE_DIR SHIBOKEN_LIBRARY SHIBOKEN_BINARY
     VERSION_VAR SHIBOKEN_VERSION
 )
+

cmake/KDAB/modules/KDPySide2ModuleBuild.cmake

@@ -7,8 +7,7 @@
 
 if(NOT ${PROJECT_NAME}_PYTHON_BINDINGS_INSTALL_PREFIX)
     # cmake-lint: disable=C0103
-    set(${PROJECT_NAME}_PYTHON_BINDINGS_INSTALL_PREFIX
-        ${CMAKE_INSTALL_PREFIX}
+    set(${PROJECT_NAME}_PYTHON_BINDINGS_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX}
         CACHE FILEPATH "Custom path to install python bindings."
     )
 endif()
@@ -92,8 +91,7 @@ endmacro()
 #   dependsArg - This var will be passed to add_custom_command(DEPENDS) so a new generation will be
 #             trigger if one of these files changes
 #   moduleOutputDir - Where the library file should be stored
-macro(
-    create_python_bindings
+macro(create_python_bindings
     libraryName
     typesystemPaths
     includePaths
@@ -103,17 +101,12 @@ macro(
     globalInclude
     typesystemXML
     dependsArg
-    moduleOutputDir
-)
+    moduleOutputDir)
 
     # Transform the path separators into something shiboken understands.
     make_path(shiboken_include_dirs ${includePaths})
     make_path(shiboken_typesystem_dirs ${typesystemPaths})
-    get_property(
-        raw_python_dir_include_dirs
-        DIRECTORY
-        PROPERTY INCLUDE_DIRECTORIES
-    )
+    get_property(raw_python_dir_include_dirs DIRECTORY PROPERTY INCLUDE_DIRECTORIES)
     make_path(python_dir_include_dirs ${raw_python_dir_include_dirs})
     set(shiboken_include_dirs "${shiboken_include_dirs}${PATH_SEP}${python_dir_include_dirs}")
 
@@ -126,10 +119,13 @@ macro(
     set_property(SOURCE ${outputSource} PROPERTY SKIP_AUTOGEN ON)
     add_custom_command(
         OUTPUT ${outputSource}
-        COMMAND
-            $<TARGET_PROPERTY:Shiboken2::shiboken,LOCATION> ${GENERATOR_EXTRA_FLAGS} ${globalInclude}
-            --include-paths=${shiboken_include_dirs} --typesystem-paths=${shiboken_typesystem_dirs}
-            ${shiboken_framework_include_dirs_option} --output-directory=${CMAKE_CURRENT_BINARY_DIR} ${typesystemXML}
+        COMMAND $<TARGET_PROPERTY:Shiboken2::shiboken,LOCATION> ${GENERATOR_EXTRA_FLAGS}
+                ${globalInclude}
+                --include-paths=${shiboken_include_dirs}
+                --typesystem-paths=${shiboken_typesystem_dirs}
+                ${shiboken_framework_include_dirs_option}
+                --output-directory=${CMAKE_CURRENT_BINARY_DIR}
+                ${typesystemXML}
         DEPENDS ${typesystemXML} ${dependsArg}
         WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
         COMMENT "Running generator for ${libraryName} binding..."
@@ -140,10 +136,10 @@ macro(
     add_library(${TARGET_NAME} MODULE ${outputSource})
 
     set_target_properties(
-        ${TARGET_NAME}
-        PROPERTIES PREFIX ""
-                   OUTPUT_NAME ${MODULE_NAME}
-                   LIBRARY_OUTPUT_DIRECTORY ${moduleOutputDir}
+        ${TARGET_NAME} PROPERTIES
+        PREFIX ""
+        OUTPUT_NAME ${MODULE_NAME}
+        LIBRARY_OUTPUT_DIRECTORY ${moduleOutputDir}
     )
     if(APPLE)
         set_target_properties(${TARGET_NAME} PROPERTIES INSTALL_RPATH "@loader_path")
@@ -157,14 +153,18 @@ macro(
 
     target_include_directories(${TARGET_NAME} PUBLIC ${targetIncludeDirs})
 
-    target_link_libraries(${TARGET_NAME} ${targetLinkLibraries} PySide2::pyside2 Shiboken2::libshiboken)
+    target_link_libraries(
+        ${TARGET_NAME}
+        ${targetLinkLibraries}
+        PySide2::pyside2
+        Shiboken2::libshiboken
+    )
     target_compile_definitions(${TARGET_NAME} PRIVATE Py_LIMITED_API=0x03050000)
     if(APPLE)
-        set_property(
-            TARGET ${TARGET_NAME}
-            APPEND
-            PROPERTY LINK_FLAGS "-undefined dynamic_lookup"
-        )
+        set_property(TARGET ${TARGET_NAME} APPEND PROPERTY LINK_FLAGS "-undefined dynamic_lookup")
     endif()
-    install(TARGETS ${TARGET_NAME} LIBRARY DESTINATION ${${PROJECT_NAME}_PYTHON_BINDINGS_INSTALL_PREFIX})
+    install(
+        TARGETS ${TARGET_NAME}
+        LIBRARY DESTINATION ${${PROJECT_NAME}_PYTHON_BINDINGS_INSTALL_PREFIX}
+    )
 endmacro()

cmake/KDAB/modules/KDPySide6ModuleBuild.cmake

@@ -7,8 +7,7 @@
 
 if(NOT ${PROJECT_NAME}_PYTHON_BINDINGS_INSTALL_PREFIX)
     # cmake-lint: disable=C0103
-    set(${PROJECT_NAME}_PYTHON_BINDINGS_INSTALL_PREFIX
-        ${CMAKE_INSTALL_PREFIX}
+    set(${PROJECT_NAME}_PYTHON_BINDINGS_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX}
         CACHE FILEPATH "Custom path to install python bindings."
     )
 endif()
@@ -92,8 +91,7 @@ endmacro()
 #   dependsArg - This var will be passed to add_custom_command(DEPENDS) so a new generation will be
 #             trigger if one of these files changes
 #   moduleOutputDir - Where the library file should be stored
-macro(
-    create_python_bindings
+macro(create_python_bindings
     libraryName
     typesystemPaths
     includePaths
@@ -103,17 +101,12 @@ macro(
     globalInclude
     typesystemXML
     dependsArg
-    moduleOutputDir
-)
+    moduleOutputDir)
 
     # Transform the path separators into something shiboken understands.
     make_path(shiboken_include_dirs ${includePaths})
     make_path(shiboken_typesystem_dirs ${typesystemPaths})
-    get_property(
-        raw_python_dir_include_dirs
-        DIRECTORY
-        PROPERTY INCLUDE_DIRECTORIES
-    )
+    get_property(raw_python_dir_include_dirs DIRECTORY PROPERTY INCLUDE_DIRECTORIES)
     make_path(python_dir_include_dirs ${raw_python_dir_include_dirs})
     set(shiboken_include_dirs "${shiboken_include_dirs}${PATH_SEP}${python_dir_include_dirs}")
 
@@ -126,10 +119,13 @@ macro(
     set_property(SOURCE ${outputSource} PROPERTY SKIP_AUTOGEN ON)
     add_custom_command(
         OUTPUT ${outputSource}
-        COMMAND
-            $<TARGET_PROPERTY:Shiboken6::shiboken,LOCATION> ${GENERATOR_EXTRA_FLAGS} ${globalInclude}
-            --include-paths=${shiboken_include_dirs} --typesystem-paths=${shiboken_typesystem_dirs}
-            ${shiboken_framework_include_dirs_option} --output-directory=${CMAKE_CURRENT_BINARY_DIR} ${typesystemXML}
+        COMMAND $<TARGET_PROPERTY:Shiboken6::shiboken,LOCATION> ${GENERATOR_EXTRA_FLAGS}
+                ${globalInclude}
+                --include-paths=${shiboken_include_dirs}
+                --typesystem-paths=${shiboken_typesystem_dirs}
+                ${shiboken_framework_include_dirs_option}
+                --output-directory=${CMAKE_CURRENT_BINARY_DIR}
+                ${typesystemXML}
         DEPENDS ${typesystemXML} ${dependsArg}
         WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
         COMMENT "Running generator for ${libraryName} binding..."
@@ -140,10 +136,10 @@ macro(
     add_library(${TARGET_NAME} MODULE ${outputSource})
 
     set_target_properties(
-        ${TARGET_NAME}
-        PROPERTIES PREFIX ""
-                   OUTPUT_NAME ${MODULE_NAME}
-                   LIBRARY_OUTPUT_DIRECTORY ${moduleOutputDir}
+        ${TARGET_NAME} PROPERTIES
+        PREFIX ""
+        OUTPUT_NAME ${MODULE_NAME}
+        LIBRARY_OUTPUT_DIRECTORY ${moduleOutputDir}
     )
     if(APPLE)
         set_target_properties(${TARGET_NAME} PROPERTIES INSTALL_RPATH "@loader_path")
@@ -157,14 +153,18 @@ macro(
 
     target_include_directories(${TARGET_NAME} PUBLIC ${targetIncludeDirs})
 
-    target_link_libraries(${TARGET_NAME} ${targetLinkLibraries} PySide6::pyside6 Shiboken6::libshiboken)
+    target_link_libraries(
+        ${TARGET_NAME}
+        ${targetLinkLibraries}
+        PySide6::pyside6
+        Shiboken6::libshiboken
+    )
     target_compile_definitions(${TARGET_NAME} PRIVATE Py_LIMITED_API=0x03050000)
     if(APPLE)
-        set_property(
-            TARGET ${TARGET_NAME}
-            APPEND
-            PROPERTY LINK_FLAGS "-undefined dynamic_lookup"
-        )
+        set_property(TARGET ${TARGET_NAME} APPEND PROPERTY LINK_FLAGS "-undefined dynamic_lookup")
     endif()
-    install(TARGETS ${TARGET_NAME} LIBRARY DESTINATION ${${PROJECT_NAME}_PYTHON_BINDINGS_INSTALL_PREFIX})
+    install(
+        TARGETS ${TARGET_NAME}
+        LIBRARY DESTINATION ${${PROJECT_NAME}_PYTHON_BINDINGS_INSTALL_PREFIX}
+    )
 endmacro()

cmake/KDAB/modules/KDQtInstallPaths.cmake

@@ -46,10 +46,7 @@ foreach(qval ${VARS_LIST})
             list(GET QVAL_LIST 1 path)
         endif()
         if(NOT ${var}) #if set already on the command line for example
-            set(${var}
-                ${path}
-                CACHE PATH "Qt install path for ${var}"
-            )
+            set(${var} ${path} CACHE PATH "Qt install path for ${var}")
         endif()
     endif()
 endforeach()

code.dev-qtquick.code-workspace

@@ -0,0 +1,145 @@
+{
+  "folders": [
+    {
+      "path": "."
+    }
+  ],
+  "settings": {
+    "files.trimTrailingWhitespace": true,
+    "editor.formatOnType": true,
+    "cmake.copyCompileCommands": "${workspaceFolder}/compile_commands.json"
+  },
+  "launch": {
+    "version": "0.2.0",
+    "configurations": [
+      {
+        "name": "gdb-kddockwidgets_customtitlebar_quick",
+        "type": "cppdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev-qtquick/bin/kddockwidgets_customtitlebar_quick",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "MIMode": "gdb",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "gdb-kddockwidgets_example_mdi_quick",
+        "type": "cppdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev-qtquick/bin/kddockwidgets_example_mdi_quick",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "MIMode": "gdb",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "gdb-kddockwidgets_example_quick",
+        "type": "cppdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev-qtquick/bin/kddockwidgets_example_quick",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "MIMode": "gdb",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "gdb-tst_docks",
+        "type": "cppdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev-qtquick/bin/tst_docks",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "MIMode": "gdb",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "lldb-kddockwidgets_customtitlebar_quick",
+        "type": "cppdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev-qtquick/bin/kddockwidgets_customtitlebar_quick",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "MIMode": "lldb",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "lldb-kddockwidgets_example_mdi_quick",
+        "type": "cppdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev-qtquick/bin/kddockwidgets_example_mdi_quick",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "MIMode": "lldb",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "lldb-kddockwidgets_example_quick",
+        "type": "cppdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev-qtquick/bin/kddockwidgets_example_quick",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "MIMode": "lldb",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "lldb-tst_docks",
+        "type": "cppdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev-qtquick/bin/tst_docks",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "MIMode": "lldb",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "msvc-kddockwidgets_customtitlebar_quick",
+        "type": "cppvsdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev-qtquick/bin/kddockwidgets_customtitlebar_quick",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "msvc-kddockwidgets_example_mdi_quick",
+        "type": "cppvsdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev-qtquick/bin/kddockwidgets_example_mdi_quick",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "msvc-kddockwidgets_example_quick",
+        "type": "cppvsdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev-qtquick/bin/kddockwidgets_example_quick",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "msvc-tst_docks",
+        "type": "cppvsdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev-qtquick/bin/tst_docks",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "stopAtEntry": false,
+        "externalConsole": false
+      }
+    ]
+  }
+}

code.dev-qtwidgets.code-workspace

@@ -0,0 +1,97 @@
+{
+  "folders": [
+    {
+      "path": "."
+    }
+  ],
+  "settings": {
+    "files.trimTrailingWhitespace": true,
+    "editor.formatOnType": true,
+    "cmake.copyCompileCommands": "${workspaceFolder}/compile_commands.json"
+  },
+  "launch": {
+    "version": "0.2.0",
+    "configurations": [
+      {
+        "name": "kddockwidgets_example",
+        "type": "lldb",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev/bin/kddockwidgets_example",
+        "args": [],
+        "cwd": "${workspaceFolder}"
+      },
+      {
+        "name": "kddockwidgets_minimal_example",
+        "type": "lldb",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev/bin/kddockwidgets_minimal_example",
+        "args": [],
+        "cwd": "${workspaceFolder}"
+      },
+      {
+        "name": "kddockwidgets_minimal_mdi_example",
+        "type": "lldb",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev/bin/kddockwidgets_minimal_mdi_example",
+        "args": [],
+        "cwd": "${workspaceFolder}"
+      },
+      {
+        "name": "kddockwidgets_mdi_with_docking_example",
+        "type": "lldb",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev/bin/kddockwidgets_mdi_with_docking_example",
+        "args": [],
+        "cwd": "${workspaceFolder}"
+      },
+      {
+        "name": "tst_docks",
+        "type": "lldb",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev/bin/tst_docks",
+        "args": [],
+        "cwd": "${workspaceFolder}"
+      },
+      {
+        "name": "msvc-kddockwidgets_example",
+        "type": "cppvsdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev/bin/kddockwidgets_example",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "msvc-kddockwidgets_minimal_example",
+        "type": "cppvsdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev/bin/kddockwidgets_minimal_example",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "msvc-kddockwidgets_minimal_mdi_example",
+        "type": "cppvsdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev/bin/kddockwidgets_minimal_mdi_example",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "msvc-tst_docks",
+        "type": "cppvsdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev/bin/tst_docks",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "stopAtEntry": false,
+        "externalConsole": false
+      }
+    ]
+  }
+}

code.dev-qtwidgets6.code-workspace

@@ -0,0 +1,145 @@
+{
+  "folders": [
+    {
+      "path": "."
+    }
+  ],
+  "settings": {
+    "files.trimTrailingWhitespace": true,
+    "editor.formatOnType": true,
+    "cmake.copyCompileCommands": "${workspaceFolder}/compile_commands.json"
+  },
+  "launch": {
+    "version": "0.2.0",
+    "configurations": [
+      {
+        "name": "gdb-kddockwidgets_example",
+        "type": "cppdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev6/bin/kddockwidgets_example",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "MIMode": "gdb",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "gdb-kddockwidgets_minimal_example",
+        "type": "cppdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev6/bin/kddockwidgets_minimal_example",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "MIMode": "gdb",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "gdb-kddockwidgets_minimal_mdi_example",
+        "type": "cppdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev6/bin/kddockwidgets_minimal_mdi_example",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "MIMode": "gdb",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "gdb-tst_docks",
+        "type": "cppdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev6/bin/tst_docks",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "MIMode": "gdb",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "lldb-kddockwidgets_example",
+        "type": "cppdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev6/bin/kddockwidgets_example",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "MIMode": "lldb",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "lldb-kddockwidgets_minimal_example",
+        "type": "cppdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev6/bin/kddockwidgets_minimal_example",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "MIMode": "lldb",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "lldb-kddockwidgets_minimal_mdi_example",
+        "type": "cppdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev6/bin/kddockwidgets_minimal_mdi_example",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "MIMode": "lldb",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "lldb-tst_docks",
+        "type": "cppdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev6/bin/tst_docks",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "MIMode": "lldb",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "msvc-kddockwidgets_example",
+        "type": "cppvsdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev6/bin/kddockwidgets_example",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "msvc-kddockwidgets_minimal_example",
+        "type": "cppvsdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev6/bin/kddockwidgets_minimal_example",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "msvc-kddockwidgets_minimal_mdi_example",
+        "type": "cppvsdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev6/bin/kddockwidgets_minimal_mdi_example",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "stopAtEntry": false,
+        "externalConsole": false
+      },
+      {
+        "name": "msvc-tst_docks",
+        "type": "cppvsdbg",
+        "request": "launch",
+        "program": "${workspaceFolder}/build-dev6/bin/tst_docks",
+        "args": [],
+        "cwd": "${workspaceFolder}",
+        "stopAtEntry": false,
+        "externalConsole": false
+      }
+    ]
+  }
+}

conan/conanfile.py

@@ -12,7 +12,7 @@ from conans import ConanFile, CMake, tools
 
 class KDDockWidgetsConan(ConanFile):
     name = "kddockwidgets"
-    version = "1.7.0"
+    version = "1.6.95"
     default_user = "kdab"
     default_channel = "stable"
     license = ("https://raw.githubusercontent.com/KDAB/KDDockWidgets/master/LICENSES/GPL-2.0-only.txt",

distro/debian.changelog

@@ -1,9 +1,3 @@
-kddockwidgets (1.7.0) release candidate; urgency=high
-
-  * 1.7.0 final
-
- -- Allen Winter <allen.winter@kdab.com>  Wed, 03 May 2023 15:00:00 -0500
-
 kddockwidgets (1.6.0) release candidate; urgency=high
 
   * 1.6.0 final

distro/qt5-kddockwidgets.dsc

@@ -1,10 +1,10 @@
 Format: 1.0
 Source: kddockwidgets
-Version: 1.7.0-1
+Version: 1.6.0-1
 Binary: kddockwidgets
 Maintainer: Allen Winter <allen.winter@kdab.com>
 Architecture: any
 Build-Depends: debhelper (>=9), cdbs, cmake, qtbase5-dev, qtbase5-private-dev, libqt5x11extras5-dev, libfontconfig-dev,  libfreetype-dev
 
 Files:
- 00000000000000000000000000000000 00000 qt5-kddockwidgets-1.7.0.tar.gz
+ 00000000000000000000000000000000 00000 qt5-kddockwidgets-1.6.0.tar.gz

distro/qt5-kddockwidgets.spec

@@ -1,5 +1,5 @@
 Name:           qt5-kddockwidgets
-Version:        1.7.0
+Version:        1.6.0
 Release:        1
 Summary:        KDAB's Dock Widget Framework for Qt5
 Source0:        %{name}-%{version}.tar.gz
@@ -98,8 +98,6 @@ cmake . -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=Release
 %{_libdir}/libkddockwidgets.so
 
 %changelog
-* Wed May 03 2023 Allen Winter <allen.winter@kdab.com> 1.7.0
-  1.7.0 final
 * Wed Sep 14 2022 Allen Winter <allen.winter@kdab.com> 1.6.0
   1.6.0 final
 * Mon Nov 24 2021 Allen Winter <allen.winter@kdab.com> 1.5.0

distro/qt6-kddockwidgets.dsc

@@ -1,10 +1,10 @@
 Format: 1.0
 Source: kddockwidgets
-Version: 1.7.0-1
+Version: 1.6.0-1
 Binary: kddockwidgets
 Maintainer: Allen Winter <allen.winter@kdab.com>
 Architecture: any
 Build-Depends: debhelper (>=9), cdbs, cmake, qt6-base-dev, qt6-base-private-dev, libgl1-mesa-dev, libfontconfig-dev, libfreetype-dev
 
 Files:
- 00000000000000000000000000000000 00000 qt6-kddockwidgets-1.7.0.tar.gz
+ 00000000000000000000000000000000 00000 qt6-kddockwidgets-1.6.0.tar.gz

distro/qt6-kddockwidgets.spec

@@ -1,5 +1,5 @@
 Name:           qt6-kddockwidgets
-Version:        1.7.0
+Version:        1.6.0
 Release:        1
 Summary:        KDAB's Dock Widget Framework for Qt6
 Source0:        %{name}-%{version}.tar.gz
@@ -92,8 +92,6 @@ cmake . -DCMAKE_INSTALL_PREFIX=/usr -DKDDockWidgets_QT6=True -DCMAKE_BUILD_TYPE=
 %{_libdir}/libkddockwidgets-qt6.so
 
 %changelog
-* Wed May 03 2023 Allen Winter <allen.winter@kdab.com> 1.7.0
-  1.7.0 final
 * Wed Sep 14 2022 Allen Winter <allen.winter@kdab.com> 1.6.0
   1.6.0 final
 * Mon Nov 24 2021 Allen Winter <allen.winter@kdab.com> 1.5.0

examples/dockwidgets/MyMainWindow.cpp

@@ -121,9 +121,6 @@ MyMainWindow::MyMainWindow(const QString &uniqueName, KDDockWidgets::MainWindowO
     if (options & KDDockWidgets::MainWindowOption_HasCentralWidget) {
         setPersistentCentralWidget(new MyWidget1());
     }
-
-    // optional, just for demo purposes regarding pressing Ctrl key to hide drop indicators
-    qApp->installEventFilter(this);
 }
 
 MyMainWindow::~MyMainWindow()
@@ -213,26 +210,3 @@ KDDockWidgets::DockWidgetBase *MyMainWindow::newDockWidget()
     count++;
     return dock;
 }
-
-bool MyMainWindow::eventFilter(QObject *obj, QEvent *ev)
-{
-    // This event filter is just for examplify how to use the KDDW API to hide
-    // the drag indicators when ctrl is pressed
-
-    switch (ev->type()) {
-    case QEvent::KeyPress:
-    case QEvent::KeyRelease: {
-        auto kev = static_cast<QKeyEvent *>(ev);
-        if (kev->key() == Qt::Key_Control && qobject_cast<QWindow *>(obj)) {
-            const bool hideIndicators = ev->type() == QEvent::KeyPress;
-            KDDockWidgets::Config::self().setDropIndicatorsInhibited(hideIndicators);
-        }
-    }
-
-    break;
-    default:
-        break;
-    }
-
-    return KDDockWidgets::MainWindow::eventFilter(obj, ev);
-}

examples/dockwidgets/MyMainWindow.h

@@ -27,7 +27,6 @@ public:
 
 private:
     void createDockWidgets();
-    bool eventFilter(QObject *obj, QEvent *ev) override;
     KDDockWidgets::DockWidgetBase *newDockWidget();
     QMenu *m_toggleMenu = nullptr;
     const bool m_dockWidget0IsNonClosable;

python/CMakeLists.txt

@@ -32,21 +32,11 @@ find_package(Shiboken${PYSIDE_MAJOR_VERSION} REQUIRED)
 find_package(PySide${PYSIDE_MAJOR_VERSION} ${QtWidgets_VERSION} EXACT REQUIRED)
 
 if(NOT ${PROJECT_NAME}_PYTHON_BINDINGS_INSTALL_PREFIX)
-    # cmake-lint: disable=C0103
-    set(${PROJECT_NAME}_PYTHON_BINDINGS_INSTALL_PREFIX
-        ${INSTALL_LIBRARY_DIR}
-        CACHE FILEPATH "Custom path to install python bindings."
-    )
-    if(NOT WIN32)
-        set(Python3_VERSION_MAJORMINOR "${Python3_VERSION_MAJOR}.${Python3_VERSION_MINOR}")
-        set(BINDINGS_DIR "python${Python3_VERSION_MAJORMINOR}/site-packages/${PYTHON_BINDING_NAMESPACE}")
-    else()
-        set(BINDINGS_DIR "site-packages/${PYTHON_BINDING_NAMESPACE}")
-    endif()
-    set(${PROJECT_NAME}_PYTHON_BINDINGS_INSTALL_PREFIX
-        "${${PROJECT_NAME}_PYTHON_BINDINGS_INSTALL_PREFIX}/${BINDINGS_DIR}"
-    )
+    set(${PROJECT_NAME}_PYTHON_BINDINGS_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}")
 endif()
+set(Python3_VERSION_MAJORMINOR "${Python3_VERSION_MAJOR}.${Python3_VERSION_MINOR}")
+set(BINDINGS_DIR "${INSTALL_LIBRARY_DIR}/python${Python3_VERSION_MAJORMINOR}/site-packages/${PYTHON_BINDING_NAMESPACE}")
+set(${PROJECT_NAME}_PYTHON_BINDINGS_INSTALL_PREFIX "${${PROJECT_NAME}_PYTHON_BINDINGS_INSTALL_PREFIX}/${BINDINGS_DIR}")
 
 include(KDPySide${PYSIDE_MAJOR_VERSION}ModuleBuild)
 add_subdirectory(PyKDDockWidgets)

python/examples-qt6/MyMainWindow.py

@@ -88,17 +88,17 @@ class MyMainWindow(KDDockWidgets.MainWindow):
 
     # pylint: disable=no-self-use
     def _saveLayout(self):
-        # saver = KDDockWidgets.LayoutSaver()
-        # result = saver.saveToFile("mylayout.json")
-        # print("Saving layout to disk. Result=", result)
+        #saver = KDDockWidgets.LayoutSaver()
+        #result = saver.saveToFile("mylayout.json")
+        #print("Saving layout to disk. Result=", result)
         print("Not available")
 
     # pylint: disable=no-self-use
     def _restoreLayout(self):
-        # options = KDDockWidgets.RestoreOption_None
+        #options = KDDockWidgets.RestoreOption_None
         # if self.restoreIsRelative:
         #    options |= KDDockWidgets.RestoreOption_RelativeToMainWindow
-        # saver = KDDockWidgets.LayoutSaver(options)
+        #saver = KDDockWidgets.LayoutSaver(options)
         # saver.restoreFromFile("mylayout.json")
         print("Not available")
 

python/examples/MyMainWindow.py

@@ -88,17 +88,17 @@ class MyMainWindow(KDDockWidgets.MainWindow):
 
     # pylint: disable=no-self-use
     def _saveLayout(self):
-        # saver = KDDockWidgets.LayoutSaver()
-        # result = saver.saveToFile("mylayout.json")
-        # print("Saving layout to disk. Result=", result)
+        #saver = KDDockWidgets.LayoutSaver()
+        #result = saver.saveToFile("mylayout.json")
+        #print("Saving layout to disk. Result=", result)
         print("Not available")
 
     # pylint: disable=no-self-use
     def _restoreLayout(self):
-        # options = KDDockWidgets.RestoreOption_None
+        #options = KDDockWidgets.RestoreOption_None
         # if self.restoreIsRelative:
         #    options |= KDDockWidgets.RestoreOption_RelativeToMainWindow
-        # saver = KDDockWidgets.LayoutSaver(options)
+        #saver = KDDockWidgets.LayoutSaver(options)
         # saver.restoreFromFile("mylayout.json")
         print("Not available")
 

src/CMakeLists.txt

@@ -318,7 +318,7 @@ elseif(
     AND NOT ${PROJECT_NAME}_QT6
     AND ${PROJECT_NAME}_X11EXTRAS
 )
-    find_package(Qt${Qt_VERSION_MAJOR}X11Extras CONFIG)
+    find_package(Qt${Qt_VERSION_MAJOR}X11Extras)
     target_link_libraries(kddockwidgets PUBLIC Qt${Qt_VERSION_MAJOR}::X11Extras)
 endif()
 

src/Config.cpp

@@ -356,9 +356,4 @@ bool Config::dropIndicatorsInhibited() const
     return d->m_dropIndicatorsInhibited;
 }
 
-void Config::printDebug()
-{
-    qDebug() << "Flags: " << d->m_flags << d->m_internalFlags;
-}
-
 }

src/Config.h

@@ -317,9 +317,6 @@ public:
     void setMDIPopupThreshold(int);
     int mdiPopupThreshold() const;
 
-    /// Prints some debug information
-    void printDebug();
-
 #ifdef KDDOCKWIDGETS_QTQUICK
     ///@brief Sets the QQmlEngine to use. Applicable only when using QtQuick.
     void setQmlEngine(QQmlEngine *);

src/DockWidgetBase.h

@@ -370,7 +370,7 @@ public:
      * @brief Returns whether this dock widget is docked into a main window (as opposed to floating)
      *
      * Note that isFloating() returning false might either mean the dock widget is docked into a
-     * main window or into a floating window (grouped/nested with other dock widgets. Use this function
+     * main window or into a floating window (groupped/nested with other dock widgets. Use this function
      * then if you need to disambiguate
      */
     bool isInMainWindow() const;

src/FrameworkWidgetFactory.cpp

@@ -21,6 +21,8 @@
 #include "private/Utils_p.h"
 #include "private/TabWidget_p.h"
 
+#include <QScopeGuard>
+
 #ifdef KDDOCKWIDGETS_QTWIDGETS
 #include "private/widgets/FrameWidget_p.h"
 #include "private/widgets/TitleBarWidget_p.h"
@@ -240,8 +242,8 @@ QUrl DefaultWidgetFactory::floatingWindowFilename() const
 QIcon DefaultWidgetFactory::iconForButtonType(TitleBarButtonType type, qreal dpr) const
 {
     auto key = std::make_pair(type, dpr);
-    auto it = m_cachedIcons.constFind(key);
-    if (it != m_cachedIcons.cend())
+    auto it = m_cachedIcons.find(key);
+    if (it != m_cachedIcons.end())
         return *it;
 
     QString iconName;
@@ -275,11 +277,12 @@ QIcon DefaultWidgetFactory::iconForButtonType(TitleBarButtonType type, qreal dpr
 
     QIcon icon(QStringLiteral(":/img/%1.png").arg(iconName));
 
-
-    if (!scalingFactorIsSupported(dpr)) {
+    auto atScopeEnd = qScopeGuard([&icon, this, key] {
         m_cachedIcons.insert(key, icon);
+    });
+
+    if (!scalingFactorIsSupported(dpr))
         return icon;
-    }
 
     // Not using Qt's sugar syntax, which doesn't support 1.5x anyway when we need it.
     // Simply add the high-res files and Qt will pick them when needed
@@ -288,7 +291,6 @@ QIcon DefaultWidgetFactory::iconForButtonType(TitleBarButtonType type, qreal dpr
         icon.addFile(QStringLiteral(":/img/%1-1.5x.png").arg(iconName));
 
     icon.addFile(QStringLiteral(":/img/%1-2x.png").arg(iconName));
-    m_cachedIcons.insert(key, icon);
 
     return icon;
 }

src/KDDockWidgets.h

@@ -182,9 +182,8 @@ private:
 
 enum RestoreOption {
     RestoreOption_None = 0,
-    RestoreOption_RelativeToMainWindow = 1 << 0, ///< Skips restoring the main window geometry and the restored dock widgets will use relative sizing.
-                                                 ///< Loading layouts won't change the main window geometry and just use whatever the user has at the moment.
-    RestoreOption_AbsoluteFloatingDockWindows = 1 << 1, ///< Skips scaling of floating dock windows relative to the main window.
+    RestoreOption_RelativeToMainWindow = 1, ///< Skips restoring the main window geometry and the restored dock widgets will use relative sizing.
+                                            ///< Loading layouts won't change the main window geometry and just use whatever the user has at the moment.
 };
 Q_DECLARE_FLAGS(RestoreOptions, RestoreOption)
 Q_ENUM_NS(RestoreOptions)

src/LayoutSaver.cpp

@@ -66,22 +66,15 @@ LayoutSaver::Layout *LayoutSaver::Layout::s_currentLayoutBeingRestored = nullptr
 
 inline InternalRestoreOptions internalRestoreOptions(RestoreOptions options)
 {
-    InternalRestoreOptions ret = {};
-    if (options.testFlag(RestoreOption_RelativeToMainWindow)) {
-        ret.setFlag(InternalRestoreOption::SkipMainWindowGeometry);
-        ret.setFlag(InternalRestoreOption::RelativeFloatingWindowGeometry);
-        options.setFlag(RestoreOption_RelativeToMainWindow, false);
-    }
-    if (options.testFlag(RestoreOption_AbsoluteFloatingDockWindows)) {
-        ret.setFlag(InternalRestoreOption::RelativeFloatingWindowGeometry, false);
-        options.setFlag(RestoreOption_AbsoluteFloatingDockWindows, false);
-    }
-
-    if (options != RestoreOption_None) {
+    if (options == RestoreOption_None) {
+        return InternalRestoreOption::None;
+    } else if (options == RestoreOption_RelativeToMainWindow) {
+        return InternalRestoreOptions(InternalRestoreOption::SkipMainWindowGeometry)
+            | InternalRestoreOption::RelativeFloatingWindowGeometry;
+    } else {
         qWarning() << Q_FUNC_INFO << "Unknown options" << options;
+        return {};
     }
-
-    return ret;
 }
 
 bool LayoutSaver::Private::s_restoreInProgress = false;
@@ -838,7 +831,7 @@ void LayoutSaver::FloatingWindow::fromVariantMap(const QVariantMap &map)
     geometry = Layouting::mapToRect(map.value(QStringLiteral("geometry")).toMap());
     normalGeometry = Layouting::mapToRect(map.value(QStringLiteral("normalGeometry")).toMap());
     screenIndex = map.value(QStringLiteral("screenIndex")).toInt();
-    flags = map.value(QStringLiteral("flags"), int(FloatingWindowFlag::FromGlobalConfig)).toInt();
+    flags = map.value(QStringLiteral("flags")).toInt();
     screenSize = Layouting::mapToSize(map.value(QStringLiteral("screenSize")).toMap());
     isVisible = map.value(QStringLiteral("isVisible")).toBool();
     affinities = variantToStringList(map.value(QStringLiteral("affinities")).toList());

src/MainWindowBase.cpp

@@ -553,8 +553,8 @@ void MainWindowBase::overlayOnSideBar(DockWidgetBase *dw)
     d->m_overlayedDockWidget = dw;
     frame->addWidget(dw);
     d->updateOverlayGeometry(dw->d->lastPosition()->lastOverlayedGeometry(sb->location()).size());
-    connect(frame, &QWidgetAdapter::widgetGeometryChanged, this, [dw, sb, frame] {
-        dw->d->lastPosition()->setLastOverlayedGeometry(sb->location(), frame->QWidgetAdapter::geometry());
+    connect(frame, &QWidgetAdapter::widgetGeometryChanged, this, [dw, loc = sb->location(), frame] {
+        dw->d->lastPosition()->setLastOverlayedGeometry(loc, frame->QWidgetAdapter::geometry());
     });
 
     frame->setAllowedResizeSides(d->allowedResizeSides(sb->location()));

src/private/DockRegistry.cpp

@@ -476,7 +476,7 @@ bool DockRegistry::isSane() const
             names.insert(name);
         }
 
-        if (!mainwindow->layoutWidget()->checkSanity())
+        if (!mainwindow->multiSplitter()->checkSanity())
             return false;
     }
 
@@ -684,7 +684,7 @@ void DockRegistry::clear(const DockWidgetBase::List &dockWidgets,
 
     for (auto mw : qAsConst(mainWindows)) {
         if (affinities.isEmpty() || affinitiesMatch(affinities, mw->affinities())) {
-            mw->layoutWidget()->clearLayout();
+            mw->multiSplitter()->clearLayout();
         }
     }
 }

src/private/DockRegistry_p.h

@@ -173,7 +173,7 @@ public:
      *
      * @param dumpDebug If true then each layout is dumped too
      *
-     * This is called by the unit-tests. If during this the framework spits a
+     * This is called by the unit-tests or the fuzzer. If during this the framework spits a
      * qWarning() then the app will qFatal()
      */
     void checkSanityAll(bool dumpDebug = false);

src/private/DragController_p.h

@@ -106,9 +106,6 @@ public:
     /// Experimental, internal, not for general use.
     void enableFallbackMouseGrabber();
 
-    // Returns the active state
-    StateBase *activeState() const;
-
 Q_SIGNALS:
     void mousePressed();
     void manhattanLengthMove();
@@ -131,6 +128,7 @@ private:
     friend class StateDraggingWayland;
 
     DragController(QObject * = nullptr);
+    StateBase *activeState() const;
     WidgetType *qtTopLevelUnderCursor() const;
     Draggable *draggableForQObject(QObject *o) const;
     QPoint m_pressPos;

src/private/DropIndicatorOverlayInterface.cpp

@@ -31,14 +31,10 @@ DropIndicatorOverlayInterface::DropIndicatorOverlayInterface(DropArea *dropArea)
 
     connect(DockRegistry::self(), &DockRegistry::dropIndicatorsInhibitedChanged, this,
             [this](bool inhibited) {
-                if (inhibited) {
+                if (inhibited)
                     removeHover();
-                } else {
-                    // Re-add hover. Fastest way is simply faking a mouse move
-                    if (auto state = qobject_cast<StateDragging *>(DragController::instance()->activeState())) {
-                        state->handleMouseMove(QCursor::pos());
-                    }
-                }
+
+                // if false then simply moving the mouse will make the drop indicators appear again
             });
 }
 

src/private/FloatingWindow.cpp

@@ -807,8 +807,3 @@ bool FloatingWindow::isUtilityWindow() const
     const bool dontUse = (m_flags & FloatingWindowFlag::DontUseParentForFloatingWindows) && (m_flags & FloatingWindowFlag::UseQtWindow);
     return !dontUse;
 }
-
-FloatingWindowFlags FloatingWindow::floatingWindowFlags() const
-{
-    return m_flags;
-}

src/private/FloatingWindow_p.h

@@ -233,9 +233,6 @@ public:
     /// @brief Returns whether this floating window supports showing a maximize button
     bool supportsMaximizeButton() const;
 
-    /// Returns the per-floating window flags
-    FloatingWindowFlags floatingWindowFlags() const;
-
 Q_SIGNALS:
     void activatedChanged();
     void numFramesChanged();

src/private/Position.cpp

@@ -173,11 +173,10 @@ LayoutSaver::Position Position::serialize() const
 
         Layouting::Item *item = itemRef->item;
         LayoutWidget *layout = DockRegistry::self()->layoutForItem(item);
-        Q_ASSERT(layout);
         const auto itemIndex = layout->items().indexOf(item);
 
         auto fw = layout->floatingWindow();
-        auto mainWindow = layout->mainWindow(/*honourNesting=*/true);
+        auto mainWindow = layout->mainWindow();
         Q_ASSERT(mainWindow || fw);
         p.isFloatingWindow = fw;
 

src/private/TitleBar.cpp

@@ -33,7 +33,7 @@ TitleBar::TitleBar(Frame *parent)
     , m_frame(parent)
     , m_floatingWindow(nullptr)
     , m_genericWidget(nullptr)
-    , m_supportsAutoHide((Config::self().flags() & Config::Flag_AutoHideSupport) == Config::Flag_AutoHideSupport)
+    , m_supportsAutoHide(Config::self().flags() & Config::Flag_AutoHideSupport)
 {
     connect(m_frame, &Frame::numDockWidgetsChanged, this, &TitleBar::updateCloseButton);
     connect(m_frame, &Frame::isFocusedChanged, this, &TitleBar::isFocusedChanged);
@@ -51,7 +51,7 @@ TitleBar::TitleBar(FloatingWindow *parent)
     , m_frame(nullptr)
     , m_floatingWindow(parent)
     , m_genericWidget(nullptr)
-    , m_supportsAutoHide((Config::self().flags() & Config::Flag_AutoHideSupport) == Config::Flag_AutoHideSupport)
+    , m_supportsAutoHide(Config::self().flags() & Config::Flag_AutoHideSupport)
 {
     connect(m_floatingWindow, &FloatingWindow::numFramesChanged, this, &TitleBar::updateButtons);
     connect(m_floatingWindow, &FloatingWindow::windowStateChanged, this, &TitleBar::updateMaximizeButton);

src/private/WidgetResizeHandler.cpp

@@ -369,7 +369,6 @@ bool WidgetResizeHandler::handleWindowsNativeEvent(QWindow *w, MSG *msg,
         const int borderWidth = 8;
         const bool hasFixedWidth = w->minimumWidth() == w->maximumWidth();
         const bool hasFixedHeight = w->minimumHeight() == w->maximumHeight();
-        const bool hasFixedWidthOrHeight = hasFixedWidth || hasFixedHeight;
 
         *result = 0;
         const int xPos = GET_X_LPARAM(msg->lParam);
@@ -377,13 +376,13 @@ bool WidgetResizeHandler::handleWindowsNativeEvent(QWindow *w, MSG *msg,
         RECT rect;
         GetWindowRect(reinterpret_cast<HWND>(w->winId()), &rect);
 
-        if (!hasFixedWidthOrHeight && xPos >= rect.left && xPos <= rect.left + borderWidth && yPos <= rect.bottom && yPos >= rect.bottom - borderWidth && features.hasResize()) {
+        if (xPos >= rect.left && xPos <= rect.left + borderWidth && yPos <= rect.bottom && yPos >= rect.bottom - borderWidth && features.hasResize()) {
             *result = HTBOTTOMLEFT;
-        } else if (!hasFixedWidthOrHeight && xPos < rect.right && xPos >= rect.right - borderWidth && yPos <= rect.bottom && yPos >= rect.bottom - borderWidth && features.hasResize()) {
+        } else if (xPos < rect.right && xPos >= rect.right - borderWidth && yPos <= rect.bottom && yPos >= rect.bottom - borderWidth && features.hasResize()) {
             *result = HTBOTTOMRIGHT;
-        } else if (!hasFixedWidthOrHeight && xPos >= rect.left && xPos <= rect.left + borderWidth && yPos >= rect.top && yPos <= rect.top + borderWidth && features.hasResize()) {
+        } else if (xPos >= rect.left && xPos <= rect.left + borderWidth && yPos >= rect.top && yPos <= rect.top + borderWidth && features.hasResize()) {
             *result = HTTOPLEFT;
-        } else if (!hasFixedWidthOrHeight && xPos <= rect.right && xPos >= rect.right - borderWidth && yPos >= rect.top && yPos < rect.top + borderWidth && features.hasResize()) {
+        } else if (xPos <= rect.right && xPos >= rect.right - borderWidth && yPos >= rect.top && yPos < rect.top + borderWidth && features.hasResize()) {
             *result = HTTOPRIGHT;
         } else if (!hasFixedWidth && xPos >= rect.left && xPos <= rect.left + borderWidth && features.hasResize()) {
             *result = HTLEFT;

src/private/WindowBeingDragged.cpp

@@ -96,7 +96,7 @@ WindowBeingDragged::~WindowBeingDragged()
 {
     grabMouse(false);
 
-    if (!isWayland() && m_floatingWindow) { // Wayland doesn't support setting opacity
+    if (!isWayland()) { // Wayland doesn't support setting opacity
         // Restore opacity to fully opaque if needed
         const qreal opacity = Config::self().draggedWindowOpacity();
         if (!qIsNaN(opacity) && !qFuzzyCompare(1.0, opacity))

tests/CMakeLists.txt

@@ -9,6 +9,10 @@
 # Contact KDAB at <info@kdab.com> for commercial licensing options.
 #
 
+# Tests:
+# 1. tst_docks      - The KDDockWidge tests. Compatible with QtWidgets and QtQuick.
+# 2. tests_launcher - helper executable to paralelize the execution of tests
+
 if(POLICY CMP0043)
     cmake_policy(SET CMP0043 NEW)
 endif()
@@ -25,6 +29,8 @@ add_definitions(-DQT_NO_KEYWORDS)
 
 set(TESTING_SRCS utils.cpp Testing.cpp)
 
+option(KDDockWidgets_FUZZER "Builds the fuzzer" ON)
+
 # tst_docks
 set(TESTING_RESOURCES ${CMAKE_CURRENT_SOURCE_DIR}/test_resources.qrc)
 add_executable(
@@ -40,4 +46,16 @@ if(NOT ${PROJECT_NAME}_QTQUICK)
     add_executable(tst_multisplitter tst_multisplitter.cpp)
     target_link_libraries(tst_multisplitter kddockwidgets Qt${Qt_VERSION_MAJOR}::Test)
     set_compiler_flags(tst_multisplitter)
+    if(KDDockWidgets_FUZZER)
+        add_subdirectory(fuzzer)
+    endif()
 endif()
+
+# tests_launcher
+add_executable(
+    tests_launcher
+    tests_launcher.cpp
+)
+target_link_libraries(
+    tests_launcher Qt${Qt_VERSION_MAJOR}::Core
+)

tests/fuzzer/CMakeLists.txt

@@ -0,0 +1,21 @@
+#
+# This file is part of KDDockWidgets.
+#
+# SPDX-FileCopyrightText: 2019-2023 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
+# Author: Sergio Martins <sergio.martins@kdab.com>
+#
+# SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only
+#
+# Contact KDAB at <info@kdab.com> for commercial licensing options.
+#
+
+add_executable(
+    fuzzer
+    ../Testing.cpp Fuzzer.cpp main.cpp Operations.cpp
+)
+
+set_property(TARGET fuzzer PROPERTY CXX_STANDARD 17)
+target_link_libraries(
+    fuzzer kddockwidgets Qt${Qt_VERSION_MAJOR}::Widgets Qt${Qt_VERSION_MAJOR}::Test
+)
+set_compiler_flags(fuzzer)

tests/fuzzer/Fuzzer.cpp

@@ -0,0 +1,404 @@
+/*
+  This file is part of KDDockWidgets.
+
+  SPDX-FileCopyrightText: 2019-2023 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
+  Author: Sérgio Martins <sergio.martins@kdab.com>
+
+  SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only
+
+  Contact KDAB at <info@kdab.com> for commercial licensing options.
+*/
+
+// We don't care about performance related checks in the tests
+// clazy:excludeall=ctor-missing-parent-argument,missing-qobject-macro,range-loop,missing-typeinfo,detaching-member,function-args-by-ref,non-pod-global-static,reserve-candidates,qstring-allocations
+
+#include "Fuzzer.h"
+#include "DockRegistry_p.h"
+#include "DockWidget.h"
+#include "MainWindow.h"
+#include "FloatingWindow_p.h"
+
+#include <QJsonDocument>
+
+#include <QString>
+#include <QTest>
+
+using namespace KDDockWidgets;
+using namespace KDDockWidgets::Testing;
+using namespace KDDockWidgets::Testing::Operations;
+
+#define OPERATIONS_PER_TEST 200
+
+static MainWindow *createMainWindow(const Fuzzer::MainWindowDescriptor &mwd)
+{
+    auto mainWindow = new MainWindow(mwd.name, mwd.mainWindowOption);
+
+    mainWindow->setGeometry(mwd.geometry);
+
+    mainWindow->show();
+    return mainWindow;
+}
+
+static DockWidget *createDockWidget(const Fuzzer::DockWidgetDescriptor &dwd)
+{
+    auto dockWidget = new DockWidget(dwd.name);
+
+    dockWidget->setWidget(new Testing::HostedWidget(dwd.minSize));
+
+    if (dwd.isFloating)
+        dockWidget->setGeometry(dwd.geometry);
+
+    if (dwd.isVisible)
+        dockWidget->show();
+
+    return dockWidget;
+}
+
+static void createLayout(const Fuzzer::Layout &layout)
+{
+    for (const Fuzzer::MainWindowDescriptor &mwd : layout.mainWindows) {
+        createMainWindow(mwd);
+    }
+
+    for (const Fuzzer::DockWidgetDescriptor &dwd : layout.dockWidgets) {
+        createDockWidget(dwd);
+    }
+}
+
+void Fuzzer::runTest(const Test &test)
+{
+    m_lastSavedLayout.clear();
+    m_currentTest = test;
+
+    if (!DockRegistry::self()->isEmpty())
+        qFatal("There's dock widgets and the start runTest");
+
+    const bool skipsLast = m_options & Option_SkipLast;
+    createLayout(test.initialLayout);
+    int index = 0;
+
+    auto operations = test.operations;
+    auto last = operations.last();
+    if (skipsLast)
+        operations.removeLast();
+
+    for (const auto &op : operations) {
+        index++;
+
+#if 0
+        // Uncomment to set a breakpoint! Check the last good index printed in the terminal
+        if (index == 82) {
+            qDebug() << "About to run the bad guy. Layout:";
+            DockRegistry::self()->checkSanityAll(/*dumpDebug=*/true);
+            qDebug() << "Running the bad guy:";
+        }
+#endif
+        op->execute();
+        if (op->hasParams())
+            qDebug() << "Ran" << op->description() << index;
+        QTest::qWait(m_operationDelayMS);
+        DockRegistry::self()->checkSanityAll();
+    }
+
+    if (skipsLast)
+        qDebug() << "Skipped" << last->toString() << "\n";
+
+    const bool willQuit = !(m_options & Option_NoQuit);
+    if (willQuit) {
+        for (MainWindowBase *mw : DockRegistry::self()->mainwindows())
+            delete mw;
+
+        for (FloatingWindow *fw : DockRegistry::self()->floatingWindows())
+            delete fw;
+
+        for (DockWidgetBase *dw : DockRegistry::self()->dockwidgets())
+            delete dw;
+
+        if (!DockRegistry::self()->isEmpty())
+            qFatal("There's still dock widgets and the end of runTest");
+    }
+}
+
+Fuzzer::Fuzzer(bool dumpJsonOnFailure, Options options, QObject *parent)
+    : QObject(parent)
+    , m_randomEngine(m_randomDevice())
+    , m_dumpJsonOnFailure(dumpJsonOnFailure)
+    , m_options(options)
+{
+    Testing::installFatalMessageHandler();
+    Testing::setWarningObserver(this);
+}
+
+Fuzzer::Layout Fuzzer::generateRandomLayout()
+{
+    // for now we only support 1 main window
+    Fuzzer::Layout layout;
+    Fuzzer::MainWindowDescriptor mainWindow;
+
+    static int count = 0;
+    count++;
+    mainWindow.name = QStringLiteral("MainWindow-%1").arg(count);
+
+    mainWindow.geometry = randomGeometry();
+    mainWindow.mainWindowOption = MainWindowOption_None; // TODO: Maybe test other options
+    layout.mainWindows << mainWindow;
+
+    std::uniform_int_distribution<> numDocksDistrib(1, 10); // TODO: Increase
+    const int numDockWidgets = numDocksDistrib(m_randomEngine);
+    for (int i = 0; i < numDockWidgets; ++i) {
+        layout.dockWidgets << generateRandomDockWidget();
+    }
+
+    return layout;
+}
+
+Fuzzer::DockWidgetDescriptor Fuzzer::generateRandomDockWidget()
+{
+    Fuzzer::DockWidgetDescriptor dwd;
+
+    static int count = 0;
+    count++;
+    dwd.name = QStringLiteral("DockWidget-%1").arg(count);
+    dwd.isFloating = getRandomBool(35);
+    dwd.isVisible = getRandomBool(70);
+
+    std::uniform_int_distribution<> minSizeDistriv(150, 600);
+
+    dwd.minSize.setWidth(minSizeDistriv(m_randomEngine));
+    dwd.minSize.setHeight(minSizeDistriv(m_randomEngine));
+
+    const bool hasMaxSize = getRandomBool(25); // 25% of all dock widgets have a max-size
+    if (hasMaxSize) {
+        std::uniform_int_distribution<> maxSizeDistriv(200, 600);
+        dwd.maxSize.setWidth(dwd.minSize.width() + minSizeDistriv(m_randomEngine));
+        dwd.maxSize.setHeight(dwd.minSize.height() + minSizeDistriv(m_randomEngine));
+    }
+
+    QPoint pos = getRandomPos();
+    std::uniform_int_distribution<> widthDistrib(dwd.minSize.width(), hasMaxSize ? dwd.maxSize.width() : dwd.minSize.width() + 600);
+    std::uniform_int_distribution<> heightDistrib(dwd.minSize.height(), hasMaxSize ? dwd.maxSize.height() : dwd.minSize.height() + 600);
+    dwd.geometry = QRect(pos, QSize(widthDistrib(m_randomEngine), heightDistrib(m_randomEngine)));
+
+    return dwd;
+}
+
+Fuzzer::DockWidgetDescriptor::List Fuzzer::generateRandomDockWidgets(int num)
+{
+    Fuzzer::DockWidgetDescriptor::List dockWidgets;
+    for (int i = 0; i < num; ++i) {
+        dockWidgets << generateRandomDockWidget();
+    }
+    return dockWidgets;
+}
+
+bool Fuzzer::getRandomBool(int truePercentage)
+{
+    std::uniform_int_distribution<> distrib(1, 100);
+    return distrib(m_randomEngine) < truePercentage;
+}
+
+Testing::AddDockWidgetParams Fuzzer::getRandomAddDockWidgetParams()
+{
+    AddDockWidgetParams params;
+
+    if (auto dw = getRandomDockWidget()) {
+        params.dockWidgetName = dw->uniqueName();
+    } else {
+        qWarning() << Q_FUNC_INFO << "No dock widgets exist yet!";
+        return {};
+    }
+
+    if (auto mw = getRandomMainWindow()) {
+        params.mainWindowName = mw->uniqueName();
+    } else {
+        qWarning() << Q_FUNC_INFO << "No main widgets exist yet!";
+        return {};
+    }
+
+    if (getRandomBool()) {
+        if (auto rt = getRandomRelativeTo(params.mainWindow(), params.dockWidget())) {
+            params.relativeToName = rt->uniqueName();
+        }
+    }
+
+    params.location = getRandomLocation();
+    params.addingOption = InitialVisibilityOption::StartVisible; // TODO: Test the other ones
+
+    return params;
+}
+
+MainWindowBase *Fuzzer::getRandomMainWindow()
+{
+    auto windows = DockRegistry::self()->mainwindows();
+    if (windows.isEmpty()) {
+        qWarning() << Q_FUNC_INFO << "No MainWindows exist yet!";
+        return nullptr;
+    }
+
+    return windows.first();
+}
+
+DockWidgetBase *Fuzzer::getRandomDockWidget(const DockWidgetBase::List &excluding)
+{
+    auto docks = DockRegistry::self()->dockwidgets();
+    for (auto dw : excluding)
+        docks.removeOne(dw);
+
+    if (docks.isEmpty())
+        return nullptr;
+
+    std::uniform_int_distribution<> locationDistrib(0, docks.size() - 1);
+    return docks[locationDistrib(m_randomEngine)];
+}
+
+DockWidgetBase *Fuzzer::getRandomRelativeTo(MainWindowBase *mainWindow, DockWidgetBase *excluding)
+{
+    auto docks = DockRegistry::self()->dockwidgets();
+
+    DockWidgetBase::List candidates;
+
+    for (DockWidgetBase *dw : docks) {
+        if (dw != excluding && dw->window() == mainWindow)
+            candidates << dw;
+    }
+
+    if (candidates.isEmpty())
+        return nullptr;
+
+    std::uniform_int_distribution<> locationDistrib(0, candidates.size() - 1);
+    return candidates[locationDistrib(m_randomEngine)];
+}
+
+Location Fuzzer::getRandomLocation()
+{
+    std::uniform_int_distribution<> locationDistrib(1, 4);
+    return Location(locationDistrib(m_randomEngine));
+}
+
+QPoint Fuzzer::getRandomPos()
+{
+    std::uniform_int_distribution<> posDistrib(0, 500);
+    const int x = posDistrib(m_randomEngine);
+    const int y = posDistrib(m_randomEngine);
+    return { x, y };
+}
+
+OperationBase::Ptr Fuzzer::getRandomOperation()
+{
+    std::uniform_int_distribution<> operationDistrib(OperationType_None + 1, OperationType_Count - 1);
+    auto operationType = OperationType(operationDistrib(m_randomEngine));
+
+    return OperationBase::newOperation(this, operationType);
+}
+
+Fuzzer::Test Fuzzer::generateRandomTest()
+{
+    Fuzzer::Test test;
+    test.initialLayout = generateRandomLayout();
+
+    const int numOperationsPerTest = OPERATIONS_PER_TEST;
+    test.operations.reserve(numOperationsPerTest);
+    for (int i = 0; i < numOperationsPerTest; ++i)
+        test.operations << getRandomOperation();
+
+    return test;
+}
+
+Fuzzer::Test::List Fuzzer::generateRandomTests(int num)
+{
+    Fuzzer::Test::List tests;
+
+    for (int i = 0; i < num; ++i) {
+        tests << generateRandomTest();
+    }
+
+    return tests;
+}
+
+void Fuzzer::fuzz(FuzzerConfig config)
+{
+    const Fuzzer::Test::List tests = generateRandomTests(config.numTests);
+    qDebug().noquote() << "Running" << QString("%1 tests...").arg(tests.size());
+
+    for (const auto &test : tests) {
+        runTest(test);
+    }
+}
+
+void Fuzzer::fuzz(const QStringList &jsonFiles)
+{
+    if (jsonFiles.size() > 1 && (m_options & Option_SkipLast)) {
+        qFatal("Use -d only when passing a single json file");
+    }
+
+    for (const QString &jsonFile : jsonFiles)
+        fuzz(jsonFile);
+}
+
+void Fuzzer::fuzz(const QString &jsonFile)
+{
+    m_currentJsonFile = jsonFile;
+    qDebug() << "\n"
+             << Q_FUNC_INFO << jsonFile;
+    QFile file(jsonFile);
+    if (file.open(QIODevice::ReadOnly)) {
+        QJsonDocument doc = QJsonDocument::fromJson(file.readAll());
+        const QVariantMap map = doc.toVariant().toMap();
+        Test test = Test::fromVariantMap(this, map);
+        runTest(test);
+    } else {
+        qWarning() << Q_FUNC_INFO << "Failed to open file" << jsonFile;
+    }
+}
+
+QRect Fuzzer::randomGeometry()
+{
+    std::uniform_int_distribution<> posDistrib(0, 500);
+    std::uniform_int_distribution<> sizeDistrib(700, 1500);
+    const int width = posDistrib(m_randomEngine);
+    const int height = sizeDistrib(m_randomEngine);
+
+    QPoint pos = getRandomPos();
+
+    return QRect(pos, QSize(width, height));
+}
+
+void Fuzzer::onFatal()
+{
+    if (m_dumpJsonOnFailure) {
+        // Tests failed! Let's dump
+        m_currentTest.dumpToJsonFile("fuzzer_dump.json");
+    }
+
+    if (!m_currentJsonFile.isEmpty()) {
+        qDebug() << "failed json: " << m_currentJsonFile;
+    }
+}
+
+void Fuzzer::setDelayBetweenOperations(int delay)
+{
+    m_operationDelayMS = delay;
+}
+
+QByteArray Fuzzer::lastSavedLayout() const
+{
+    return m_lastSavedLayout;
+}
+
+void Fuzzer::setLastSavedLayout(const QByteArray &serialized)
+{
+    m_lastSavedLayout = serialized;
+}
+
+void Fuzzer::Test::dumpToJsonFile(const QString &filename) const
+{
+    const QVariantMap map = toVariantMap();
+    QJsonDocument jsonDoc = QJsonDocument::fromVariant(map);
+    QFile file(filename);
+    if (file.open(QIODevice::WriteOnly)) {
+        file.write(jsonDoc.toJson());
+    } else {
+        qDebug() << Q_FUNC_INFO << "Error opening file";
+    }
+    file.close();
+}

tests/fuzzer/Fuzzer.h

@@ -0,0 +1,283 @@
+/*
+  This file is part of KDDockWidgets.
+
+  SPDX-FileCopyrightText: 2019-2023 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
+  Author: Sérgio Martins <sergio.martins@kdab.com>
+
+  SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only
+
+  Contact KDAB at <info@kdab.com> for commercial licensing options.
+*/
+
+// We don't care about performance related checks in the tests
+// clazy:excludeall=ctor-missing-parent-argument,missing-qobject-macro,range-loop,missing-typeinfo,detaching-member,function-args-by-ref,non-pod-global-static,reserve-candidates,qstring-allocations
+
+#ifndef KDDOCKWIDGETS_FUZZER_H
+#define KDDOCKWIDGETS_FUZZER_H
+
+#include "../Testing.h"
+#include "MainWindowBase.h"
+#include "Operations.h"
+
+#include <QJsonDocument>
+#include <QVector>
+
+#include <random>
+
+namespace KDDockWidgets {
+namespace Testing {
+
+static QVariantMap sizeToVariantMap(QSize sz)
+{
+    QVariantMap map;
+    map["width"] = sz.width();
+    map["height"] = sz.height();
+    return map;
+}
+
+static QVariantMap rectToVariantMap(QRect r)
+{
+    QVariantMap map;
+    map["size"] = sizeToVariantMap(r.size());
+    map["x"] = r.x();
+    map["y"] = r.y();
+    return map;
+}
+
+static QSize sizeFromVariantMap(const QVariantMap &map)
+{
+    return { map["width"].toInt(), map["height"].toInt() };
+}
+
+static QRect rectFromVariantMap(const QVariantMap &map)
+{
+    const QSize sz = sizeFromVariantMap(map["size"].toMap());
+    return { map["x"].toInt(), map["y"].toInt(), sz.width(), sz.height() };
+}
+
+class Fuzzer : public QObject, WarningObserver
+{
+    Q_OBJECT
+public:
+    enum Option {
+        Option_None = 0,
+        Option_NoQuit = 1, ///< Don't quit when the tests finish. So we can debug in gammaray
+        Option_SkipLast = 2 ///< Don't execute the last test. Useful when the last one is the failing one and we want to inspect the state prior to crash
+    };
+    Q_DECLARE_FLAGS(Options, Option)
+
+    struct FuzzerConfig
+    {
+        int numTests;
+        int numOperationsPerTest;
+        bool singleMainWindow;
+    };
+
+    struct DockWidgetDescriptor
+    {
+        typedef QVector<DockWidgetDescriptor> List;
+        QString name;
+        QSize minSize; // the minSize of the hosted widget
+        QSize maxSize;
+        QRect geometry;
+        bool isFloating;
+        bool isVisible;
+
+        QVariantMap toVariantMap() const
+        {
+            QVariantMap map;
+            map[QStringLiteral("name")] = name;
+            map[QStringLiteral("minSize")] = sizeToVariantMap(minSize);
+            map[QStringLiteral("maxSize")] = sizeToVariantMap(maxSize);
+            map[QStringLiteral("geometry")] = rectToVariantMap(geometry);
+            map[QStringLiteral("isFloating")] = isFloating;
+            map[QStringLiteral("isVisible")] = isVisible;
+
+            return map;
+        }
+
+        static DockWidgetDescriptor fromVariantMap(const QVariantMap &map)
+        {
+            DockWidgetDescriptor dock;
+
+            dock.name = map["name"].toString();
+            dock.minSize = sizeFromVariantMap(map["minSize"].toMap());
+            dock.maxSize = sizeFromVariantMap(map["maxSize"].toMap());
+            dock.geometry = rectFromVariantMap(map["geometry"].toMap());
+            dock.isFloating = map["isFloating"].toBool();
+            dock.isVisible = map["isVisible"].toBool();
+
+            return dock;
+        }
+    };
+
+    struct MainWindowDescriptor
+    {
+        typedef QVector<MainWindowDescriptor> List;
+        QString name;
+        QRect geometry;
+        MainWindowOption mainWindowOption;
+
+        QVariantMap toVariantMap() const
+        {
+            QVariantMap map;
+            map[QStringLiteral("name")] = name;
+            map[QStringLiteral("geometry")] = rectToVariantMap(geometry);
+            map[QStringLiteral("mainWindowOption")] = mainWindowOption;
+            return map;
+        }
+
+        static MainWindowDescriptor fromVariantMap(const QVariantMap &map)
+        {
+            MainWindowDescriptor mainWindow;
+
+            mainWindow.name = map["name"].toString();
+            mainWindow.mainWindowOption = MainWindowOption(map["mainWindowOption"].toInt());
+            mainWindow.geometry = rectFromVariantMap(map["geometry"].toMap());
+
+            return mainWindow;
+        }
+    };
+
+    struct Layout
+    {
+        typedef QVector<Layout> List;
+        MainWindowDescriptor::List mainWindows;
+        DockWidgetDescriptor::List dockWidgets;
+
+        QVariantMap toVariantMap() const
+        {
+            QVariantList mainWindowsVariant;
+            mainWindowsVariant.reserve(mainWindows.size());
+            for (const auto &mw : mainWindows) {
+                mainWindowsVariant << mw.toVariantMap();
+            }
+
+            QVariantList dockWidgetsVariant;
+            dockWidgetsVariant.reserve(dockWidgets.size());
+            for (const auto &dw : dockWidgets) {
+                dockWidgetsVariant << dw.toVariantMap();
+            }
+
+            QVariantMap map;
+            map[QStringLiteral("mainWindows")] = mainWindowsVariant;
+            map[QStringLiteral("dockWidgets")] = dockWidgetsVariant;
+            return map;
+        }
+
+
+        static Layout fromVariantMap(const QVariantMap &map)
+        {
+            Layout l;
+
+            const QVariantList mainWindows = map["mainWindows"].toList();
+            const QVariantList dockWidgets = map["dockWidgets"].toList();
+
+            l.mainWindows.reserve(mainWindows.size());
+            for (const QVariant &mainwindow : mainWindows)
+                l.mainWindows.push_back(MainWindowDescriptor::fromVariantMap(mainwindow.toMap()));
+
+            l.dockWidgets.reserve(dockWidgets.size());
+            for (const QVariant &dockWidget : dockWidgets)
+                l.dockWidgets.push_back(DockWidgetDescriptor::fromVariantMap(dockWidget.toMap()));
+
+            return l;
+        }
+    };
+
+    struct Test
+    {
+        typedef QVector<Test> List;
+        Layout initialLayout;
+        Operations::OperationBase::List operations;
+
+        void dumpToJsonFile(const QString &filename) const;
+
+        QVariantMap toVariantMap() const
+        {
+            QVariantMap map;
+            map[QStringLiteral("initialLayout")] = initialLayout.toVariantMap();
+
+            QVariantList operationsVariant;
+            operationsVariant.reserve(operations.size());
+            for (const auto &o : operations) {
+                QVariantMap operationVariant = o->toVariantMap();
+                if (operationVariant.isEmpty())
+                    continue;
+
+                operationsVariant << operationVariant;
+            }
+
+            map[QStringLiteral("operations")] = operationsVariant;
+            return map;
+        }
+
+        static Test fromVariantMap(Fuzzer *fuzzer, const QVariantMap &map)
+        {
+            Test t;
+            t.initialLayout = Layout::fromVariantMap(map["initialLayout"].toMap());
+
+            const QVariantList operations = map["operations"].toList();
+            t.operations.reserve(operations.size());
+            for (const QVariant &operation : operations)
+                t.operations.push_back(Operations::OperationBase::fromVariantMap(fuzzer, operation.toMap()));
+
+            return t;
+        }
+    };
+
+    void runTest(const Test &);
+
+    explicit Fuzzer(bool dumpJsonOnFailure, Options, QObject *parent = nullptr);
+
+    Fuzzer::Layout generateRandomLayout();
+
+    Fuzzer::DockWidgetDescriptor generateRandomDockWidget();
+
+    Fuzzer::DockWidgetDescriptor::List generateRandomDockWidgets(int num);
+
+    bool getRandomBool(int truePercentage = 50);
+
+    Testing::AddDockWidgetParams getRandomAddDockWidgetParams();
+
+    KDDockWidgets::MainWindowBase *getRandomMainWindow();
+    KDDockWidgets::DockWidgetBase *getRandomDockWidget(const DockWidgetBase::List &excluding = {});
+    KDDockWidgets::DockWidgetBase *getRandomRelativeTo(MainWindowBase *mainWindow,
+                                                       DockWidgetBase *excluding);
+
+    KDDockWidgets::Location getRandomLocation();
+
+    QPoint getRandomPos();
+
+    Operations::OperationBase::Ptr getRandomOperation();
+
+    Fuzzer::Test generateRandomTest();
+    Fuzzer::Test::List generateRandomTests(int num);
+
+    void fuzz(FuzzerConfig config);
+    void fuzz(const QStringList &jsonFiles);
+    void fuzz(const QString &json);
+
+    QRect randomGeometry();
+
+    void onFatal() override;
+    void setDelayBetweenOperations(int delay);
+
+    QByteArray lastSavedLayout() const;
+    void setLastSavedLayout(const QByteArray &serialized);
+
+private:
+    std::random_device m_randomDevice;
+    std::mt19937 m_randomEngine;
+    Fuzzer::Test m_currentTest;
+    QString m_currentJsonFile;
+    const bool m_dumpJsonOnFailure;
+    int m_operationDelayMS = 50;
+    const Options m_options;
+    QByteArray m_lastSavedLayout;
+};
+
+}
+}
+
+#endif

tests/fuzzer/Operations.cpp

@@ -0,0 +1,483 @@
+/*
+  This file is part of KDDockWidgets.
+
+  SPDX-FileCopyrightText: 2019-2023 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
+  Author: Sérgio Martins <sergio.martins@kdab.com>
+
+  SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only
+
+  Contact KDAB at <info@kdab.com> for commercial licensing options.
+*/
+
+// We don't care about performance related checks in the tests
+// clazy:excludeall=ctor-missing-parent-argument,missing-qobject-macro,range-loop,missing-typeinfo,detaching-member,function-args-by-ref,non-pod-global-static,reserve-candidates,qstring-allocations
+
+#include "Operations.h"
+#include "../Testing.h"
+#include "DockRegistry_p.h"
+#include "DockWidgetBase.h"
+#include "DockWidgetBase_p.h"
+#include "FloatingWindow_p.h"
+#include "Frame_p.h"
+#include "Fuzzer.h"
+
+#include <QTest>
+
+using namespace KDDockWidgets;
+using namespace KDDockWidgets::Testing;
+using namespace KDDockWidgets::Testing::Operations;
+
+static QString operationTypeStr(OperationType optype)
+{
+    return QMetaEnum::fromType<OperationType>().valueToKey(optype);
+}
+
+OperationBase::OperationBase(KDDockWidgets::Testing::Operations::OperationType type, Fuzzer *fuzzer)
+    : m_operationType(type)
+    , m_fuzzer(fuzzer)
+{
+}
+
+OperationBase::~OperationBase()
+{
+}
+
+void OperationBase::execute()
+{
+    if (!hasParams())
+        generateRandomParams();
+
+    if (hasParams()) { // Check again, as generateRandomParams() is not guaranteed
+        updateDescription();
+        execute_impl();
+
+        if (m_sleepMS > 0)
+            QTest::qWait(m_sleepMS);
+    }
+}
+
+QVariantMap OperationBase::toVariantMap() const
+{
+    const QVariantMap params = paramsToVariantMap();
+    if (!hasParams())
+        return {};
+
+    QVariantMap map;
+    map["type"] = m_operationType;
+    map["params"] = params;
+    map["comment"] = description();
+
+    return map;
+}
+
+OperationBase::Ptr OperationBase::fromVariantMap(Fuzzer *fuzzer, const QVariantMap &map)
+{
+    if (!map.contains("type") || !map.contains("params")) {
+        qDebug() << Q_FUNC_INFO << "Invalid map";
+        return {};
+    }
+
+    auto operationType = OperationType(map["type"].toInt());
+
+    OperationBase::Ptr ptr = OperationBase::newOperation(fuzzer, operationType);
+    if (ptr) {
+        const QVariantMap params = map["params"].toMap();
+        if (params.isEmpty()) {
+            qDebug() << Q_FUNC_INFO << "Invalid params";
+        } else {
+            ptr->fillParamsFromVariantMap(params);
+        }
+
+        if (map.contains("pause"))
+            ptr->m_sleepMS = map["pause"].toInt();
+    } else {
+        qDebug() << Q_FUNC_INFO << "Failed to fill params";
+    }
+
+    return ptr;
+}
+
+OperationBase::Ptr OperationBase::newOperation(Fuzzer *fuzzer, OperationType type)
+{
+    OperationBase::Ptr ptr;
+
+    switch (type) {
+    case OperationType_Count:
+    case OperationType_None:
+        qDebug() << Q_FUNC_INFO << "Invalid type";
+        break;
+    case OperationType_CloseViaDockWidgetAPI:
+        ptr = OperationBase::Ptr(new CloseViaDockWidgetAPI(fuzzer));
+        break;
+    case OperationType_HideViaDockWidgetAPI:
+        ptr = OperationBase::Ptr(new HideViaDockWidgetAPI(fuzzer));
+        break;
+    case OperationType_ShowViaDockWidgetAPI:
+        ptr = OperationBase::Ptr(new ShowViaDockWidgetAPI(fuzzer));
+        break;
+    case OperationType_AddDockWidget:
+        ptr = OperationBase::Ptr(new AddDockWidget(fuzzer));
+        break;
+    case OperationType_AddDockWidgetAsTab:
+        ptr = OperationBase::Ptr(new AddDockWidgetAsTab(fuzzer));
+        break;
+    case OperationType_SaveLayout:
+        ptr = OperationBase::Ptr(new SaveLayout(fuzzer));
+        break;
+    case OperationType_RestoreLayout:
+        ptr = OperationBase::Ptr(new RestoreLayout(fuzzer));
+        break;
+    }
+
+    return ptr;
+}
+
+QString OperationBase::toString()
+{
+    if (m_description.isEmpty())
+        updateDescription();
+
+    return QStringLiteral("type=%1;description=%2").arg(operationTypeStr(m_operationType), m_description);
+}
+
+DockWidgetBase *OperationBase::dockByName(const QString &name) const
+{
+    return DockRegistry::self()->dockByName(name);
+}
+
+MainWindowBase *OperationBase::mainWindowByName(const QString &name) const
+{
+    return DockRegistry::self()->mainWindowByName(name);
+}
+
+QString OperationBase::dockStr(const QString &name) const
+{
+    if (auto dw = dockByName(name)) {
+        if (dw->isVisible())
+            return name;
+        return QStringLiteral("%1-[hidden]").arg(name);
+    } else {
+        return QStringLiteral("null");
+    }
+}
+
+CloseViaDockWidgetAPI::CloseViaDockWidgetAPI(Fuzzer *fuzzer)
+    : OperationBase(OperationType_CloseViaDockWidgetAPI, fuzzer)
+{
+}
+
+void CloseViaDockWidgetAPI::generateRandomParams()
+{
+    if (DockWidgetBase *dw = m_fuzzer->getRandomDockWidget())
+        if (dw->isVisible())
+            m_dockWidgetName = dw->uniqueName();
+}
+
+bool CloseViaDockWidgetAPI::hasParams() const
+{
+    return !m_dockWidgetName.isEmpty();
+}
+
+void CloseViaDockWidgetAPI::updateDescription()
+{
+    m_description = QStringLiteral("Closing %1").arg(dockStr(m_dockWidgetName));
+}
+
+void CloseViaDockWidgetAPI::execute_impl()
+{
+    DockWidgetBase *dw = dockByName(m_dockWidgetName);
+    auto fw = dw->floatingWindow();
+    dw->close();
+    if (fw && fw->beingDeleted())
+        Testing::waitForDeleted(fw);
+}
+
+QVariantMap CloseViaDockWidgetAPI::paramsToVariantMap() const
+{
+    QVariantMap map;
+    if (!m_dockWidgetName.isEmpty())
+        map["dockWidgetName"] = m_dockWidgetName;
+    return map;
+}
+
+void CloseViaDockWidgetAPI::fillParamsFromVariantMap(const QVariantMap &map)
+{
+    m_dockWidgetName = map["dockWidgetName"].toString();
+}
+
+HideViaDockWidgetAPI::HideViaDockWidgetAPI(Fuzzer *fuzzer)
+    : OperationBase(OperationType_HideViaDockWidgetAPI, fuzzer)
+{
+}
+
+void HideViaDockWidgetAPI::generateRandomParams()
+{
+    if (DockWidgetBase *dw = m_fuzzer->getRandomDockWidget())
+        if (dw->isVisible())
+            m_dockWidgetName = dw->uniqueName();
+}
+
+bool HideViaDockWidgetAPI::hasParams() const
+{
+    return !m_dockWidgetName.isEmpty();
+}
+
+void HideViaDockWidgetAPI::updateDescription()
+{
+    m_description = QStringLiteral("Hiding %1").arg(dockStr(m_dockWidgetName));
+}
+
+void HideViaDockWidgetAPI::execute_impl()
+{
+    DockWidgetBase *dw = dockByName(m_dockWidgetName);
+    if (!dw) {
+        qDebug() << Q_FUNC_INFO << "not found" << m_dockWidgetName;
+        Q_ASSERT(false);
+    }
+
+    auto fw = dw->floatingWindow();
+    dw->close();
+    if (fw && fw->beingDeleted())
+        Testing::waitForDeleted(fw);
+}
+
+QVariantMap HideViaDockWidgetAPI::paramsToVariantMap() const
+{
+    QVariantMap map;
+    if (!m_dockWidgetName.isEmpty())
+        map["dockWidgetName"] = m_dockWidgetName;
+    return map;
+}
+
+void HideViaDockWidgetAPI::fillParamsFromVariantMap(const QVariantMap &map)
+{
+    m_dockWidgetName = map["dockWidgetName"].toString();
+}
+
+ShowViaDockWidgetAPI::ShowViaDockWidgetAPI(Fuzzer *fuzzer)
+    : OperationBase(OperationType_ShowViaDockWidgetAPI, fuzzer)
+{
+}
+
+void ShowViaDockWidgetAPI::generateRandomParams()
+{
+    if (DockWidgetBase *dw = m_fuzzer->getRandomDockWidget())
+        if (!dw->isVisible())
+            m_dockWidgetName = dw->uniqueName();
+}
+
+bool ShowViaDockWidgetAPI::hasParams() const
+{
+    return !m_dockWidgetName.isEmpty();
+}
+
+void ShowViaDockWidgetAPI::updateDescription()
+{
+    m_description = QStringLiteral("Showing %1").arg(dockStr(m_dockWidgetName));
+}
+
+void ShowViaDockWidgetAPI::execute_impl()
+{
+    DockWidgetBase *dw = dockByName(m_dockWidgetName);
+    dw->show();
+}
+
+QVariantMap ShowViaDockWidgetAPI::paramsToVariantMap() const
+{
+    QVariantMap map;
+    if (!m_dockWidgetName.isEmpty())
+        map["dockWidgetName"] = m_dockWidgetName;
+    return map;
+}
+
+void ShowViaDockWidgetAPI::fillParamsFromVariantMap(const QVariantMap &map)
+{
+    m_dockWidgetName = map["dockWidgetName"].toString();
+}
+
+AddDockWidget::AddDockWidget(Fuzzer *fuzzer)
+    : OperationBase(OperationType_AddDockWidget, fuzzer)
+{
+}
+
+void AddDockWidget::generateRandomParams()
+{
+    m_params = m_fuzzer->getRandomAddDockWidgetParams();
+}
+
+bool AddDockWidget::hasParams() const
+{
+    return !m_params.isNull();
+}
+
+void AddDockWidget::updateDescription()
+{
+    if (m_params.relativeToName.isEmpty())
+        m_description = QStringLiteral("AddDockWidget %1 to %2").arg(dockStr(m_params.dockWidgetName), KDDockWidgets::locationStr(m_params.location));
+    else
+        m_description = QStringLiteral("AddDockWidget %1 to %2, relative to %3").arg(dockStr(m_params.dockWidgetName), KDDockWidgets::locationStr(m_params.location), dockStr(m_params.relativeToName));
+}
+
+void AddDockWidget::execute_impl()
+{
+    auto fw = m_params.dockWidget()->floatingWindow();
+    m_params.mainWindow()->addDockWidget(m_params.dockWidget(), m_params.location,
+                                         m_params.relativeTo(), m_params.addingOption);
+    if (fw && fw->beingDeleted())
+        Testing::waitForDeleted(fw);
+}
+
+QVariantMap AddDockWidget::paramsToVariantMap() const
+{
+    return m_params.isNull() ? QVariantMap()
+                             : m_params.toVariantMap();
+}
+
+void AddDockWidget::fillParamsFromVariantMap(const QVariantMap &map)
+{
+    m_params = AddDockWidgetParams::fillFromVariantMap(map);
+}
+
+AddDockWidgetAsTab::AddDockWidgetAsTab(Fuzzer *fuzzer)
+    : OperationBase(OperationType_AddDockWidgetAsTab, fuzzer)
+{
+}
+
+void AddDockWidgetAsTab::generateRandomParams()
+{
+    DockWidgetBase *dw = m_fuzzer->getRandomDockWidget();
+    if (!dw)
+        return;
+
+    DockWidgetBase *dw2 = nullptr;
+
+    if (auto frame = dw->d->frame()) {
+        auto toExclude = frame->dockWidgets();
+        for (auto dockWidget : DockRegistry::self()->dockwidgets()) {
+            if (dockWidget->window() == dw->window())
+                toExclude.push_back(dockWidget);
+        }
+
+        dw2 = m_fuzzer->getRandomDockWidget(toExclude);
+    }
+
+    if (!dw2)
+        return;
+    m_dockWidgetName = dw->uniqueName();
+    m_dockWidgetToAddName = dw2->uniqueName();
+}
+
+bool AddDockWidgetAsTab::hasParams() const
+{
+    return !m_dockWidgetName.isEmpty() && !m_dockWidgetToAddName.isEmpty();
+}
+
+void AddDockWidgetAsTab::updateDescription()
+{
+    m_description = QStringLiteral("AddDockWidgetAsTab %1 onto %2").arg(dockStr(m_dockWidgetToAddName), dockStr(m_dockWidgetName));
+}
+
+void AddDockWidgetAsTab::execute_impl()
+{
+    DockWidgetBase *dw = dockByName(m_dockWidgetName);
+    DockWidgetBase *dw2 = dockByName(m_dockWidgetToAddName);
+
+    auto fw = dw2->floatingWindow();
+    dw->addDockWidgetAsTab(dw2);
+    if (fw && fw->beingDeleted())
+        Testing::waitForDeleted(fw);
+}
+
+QVariantMap AddDockWidgetAsTab::paramsToVariantMap() const
+{
+    QVariantMap map;
+
+    if (hasParams()) {
+        map["dockWidgetName"] = m_dockWidgetName;
+        map["dockWidgetToAddName"] = m_dockWidgetToAddName;
+    }
+
+    return map;
+}
+
+void AddDockWidgetAsTab::fillParamsFromVariantMap(const QVariantMap &map)
+{
+    m_dockWidgetName = map["dockWidgetName"].toString();
+    m_dockWidgetToAddName = map["dockWidgetToAddName"].toString();
+}
+
+SaveLayout::SaveLayout(Fuzzer *fuzzer)
+    : OperationBase(OperationType_SaveLayout, fuzzer)
+{
+}
+
+bool SaveLayout::hasParams() const
+{
+    return true;
+}
+
+void SaveLayout::updateDescription()
+{
+    m_description = QStringLiteral("SaveLayout");
+}
+
+void SaveLayout::execute_impl()
+{
+    LayoutSaver saver;
+    m_fuzzer->setLastSavedLayout(saver.serializeLayout());
+
+    qDebug() << m_fuzzer << m_fuzzer->lastSavedLayout().isEmpty();
+}
+
+void SaveLayout::generateRandomParams()
+{
+}
+
+QVariantMap SaveLayout::paramsToVariantMap() const
+{
+    return {};
+}
+
+void SaveLayout::fillParamsFromVariantMap(const QVariantMap &)
+{
+}
+
+RestoreLayout::RestoreLayout(Fuzzer *fuzzer)
+    : OperationBase(OperationType_RestoreLayout, fuzzer)
+{
+}
+
+bool RestoreLayout::hasParams() const
+{
+    return true;
+}
+
+void RestoreLayout::updateDescription()
+{
+    m_description = QStringLiteral("RestoreLayout");
+}
+
+void RestoreLayout::execute_impl()
+{
+    QByteArray serialized = m_fuzzer->lastSavedLayout();
+    if (serialized.isEmpty()) {
+        qDebug() << "Skipping, nothing to restore";
+        return;
+    }
+
+    LayoutSaver saver;
+    saver.restoreLayout(serialized);
+}
+
+void RestoreLayout::generateRandomParams()
+{
+}
+
+QVariantMap RestoreLayout::paramsToVariantMap() const
+{
+    return {};
+}
+
+void RestoreLayout::fillParamsFromVariantMap(const QVariantMap &)
+{
+}

tests/fuzzer/Operations.h

@@ -0,0 +1,217 @@
+/*
+  This file is part of KDDockWidgets.
+
+  SPDX-FileCopyrightText: 2019-2023 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
+  Author: Sérgio Martins <sergio.martins@kdab.com>
+
+  SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only
+
+  Contact KDAB at <info@kdab.com> for commercial licensing options.
+*/
+
+// We don't care about performance related checks in the tests
+// clazy:excludeall=ctor-missing-parent-argument,missing-qobject-macro,range-loop,missing-typeinfo,detaching-member,function-args-by-ref,non-pod-global-static,reserve-candidates,qstring-allocations
+
+#ifndef KDDOCKWIDGETS_TESTING_OPERATIONS_H
+#define KDDOCKWIDGETS_TESTING_OPERATIONS_H
+
+#include "KDDockWidgets.h"
+#include "../Testing.h"
+
+#include <QObject>
+#include <QVector>
+#include <QMetaEnum>
+
+#include <memory>
+
+namespace KDDockWidgets {
+
+class DockWidgetBase;
+class MainWindowBase;
+
+namespace Testing {
+
+class Fuzzer;
+
+namespace Operations {
+Q_NAMESPACE
+enum OperationType {
+    OperationType_None = 0,
+    OperationType_CloseViaDockWidgetAPI, ///< Closing programmatically via DockWidget::close()
+    OperationType_HideViaDockWidgetAPI, ///< Hiding programmatically via DockWidget::hide()
+    OperationType_ShowViaDockWidgetAPI, ///< Hiding programmatically via DockWidget::show()
+    OperationType_AddDockWidget, ///< MainWindow::addDockWidget()
+    OperationType_AddDockWidgetAsTab, ///< DockWidget::addDockWidgetAsTab()
+    OperationType_SaveLayout, ///< LayoutSaver::saveLayout()
+    OperationType_RestoreLayout, ///< LayoutSaver::restoreLayout()
+    OperationType_Count /// Keep at end
+};
+Q_ENUM_NS(OperationType)
+
+
+///@brief Describes a testable action.
+class OperationBase
+{
+    Q_DISABLE_COPY(OperationBase)
+public:
+    typedef std::shared_ptr<OperationBase> Ptr;
+    typedef QVector<OperationBase::Ptr> List;
+    explicit OperationBase(OperationType, Fuzzer *);
+    virtual ~OperationBase();
+
+    void execute();
+
+    QVariantMap toVariantMap() const;
+    static OperationBase::Ptr fromVariantMap(Fuzzer *fuzzer, const QVariantMap &);
+    static OperationBase::Ptr newOperation(Fuzzer *fuzzer, OperationType);
+
+    OperationType type() const
+    {
+        return m_operationType;
+    }
+    QString description() const
+    {
+        return m_description;
+    }
+
+    virtual void updateDescription() = 0;
+    virtual bool hasParams() const = 0;
+    QString toString();
+
+protected:
+    virtual void execute_impl() = 0;
+    virtual void generateRandomParams() = 0;
+    virtual QVariantMap paramsToVariantMap() const = 0;
+    virtual void fillParamsFromVariantMap(const QVariantMap &) = 0;
+    DockWidgetBase *dockByName(const QString &) const;
+    MainWindowBase *mainWindowByName(const QString &) const;
+    QString dockStr(const QString &name) const;
+
+    const OperationType m_operationType;
+    Fuzzer *const m_fuzzer;
+    int m_sleepMS = 0;
+    QString m_description;
+};
+
+class CloseViaDockWidgetAPI : public OperationBase
+{
+    Q_DISABLE_COPY(CloseViaDockWidgetAPI)
+public:
+    explicit CloseViaDockWidgetAPI(Fuzzer *);
+
+protected:
+    void updateDescription() override;
+    void generateRandomParams() override;
+    bool hasParams() const override;
+    void execute_impl() override;
+    QVariantMap paramsToVariantMap() const override;
+    void fillParamsFromVariantMap(const QVariantMap &) override;
+    QString m_dockWidgetName;
+};
+
+class HideViaDockWidgetAPI : public OperationBase
+{
+    Q_DISABLE_COPY(HideViaDockWidgetAPI)
+public:
+    explicit HideViaDockWidgetAPI(Fuzzer *);
+
+protected:
+    void generateRandomParams() override;
+    bool hasParams() const override;
+    void updateDescription() override;
+    void execute_impl() override;
+    QVariantMap paramsToVariantMap() const override;
+    void fillParamsFromVariantMap(const QVariantMap &) override;
+    QString m_dockWidgetName;
+};
+
+class ShowViaDockWidgetAPI : public OperationBase
+{
+    Q_DISABLE_COPY(ShowViaDockWidgetAPI)
+public:
+    explicit ShowViaDockWidgetAPI(Fuzzer *);
+
+protected:
+    void generateRandomParams() override;
+    bool hasParams() const override;
+    void updateDescription() override;
+    void execute_impl() override;
+    QVariantMap paramsToVariantMap() const override;
+    void fillParamsFromVariantMap(const QVariantMap &) override;
+    QString m_dockWidgetName;
+};
+
+class AddDockWidget : public OperationBase
+{
+    Q_DISABLE_COPY(AddDockWidget)
+public:
+    explicit AddDockWidget(Fuzzer *);
+
+protected:
+    void generateRandomParams() override;
+    bool hasParams() const override;
+    void updateDescription() override;
+    void execute_impl() override;
+    QVariantMap paramsToVariantMap() const override;
+    void fillParamsFromVariantMap(const QVariantMap &) override;
+
+private:
+    Testing::AddDockWidgetParams m_params;
+};
+
+class AddDockWidgetAsTab : public OperationBase
+{
+    Q_DISABLE_COPY(AddDockWidgetAsTab)
+public:
+    explicit AddDockWidgetAsTab(Fuzzer *);
+
+protected:
+    void generateRandomParams() override;
+    bool hasParams() const override;
+    void updateDescription() override;
+    void execute_impl() override;
+    QVariantMap paramsToVariantMap() const override;
+    void fillParamsFromVariantMap(const QVariantMap &) override;
+
+private:
+    QString m_dockWidgetName;
+    QString m_dockWidgetToAddName;
+};
+
+class SaveLayout : public OperationBase
+{
+    Q_DISABLE_COPY(SaveLayout)
+public:
+    explicit SaveLayout(Fuzzer *);
+
+protected:
+    bool hasParams() const override;
+    void updateDescription() override;
+    void execute_impl() override;
+
+    void generateRandomParams() override;
+    QVariantMap paramsToVariantMap() const override;
+    void fillParamsFromVariantMap(const QVariantMap &) override;
+};
+
+class RestoreLayout : public OperationBase
+{
+    Q_DISABLE_COPY(RestoreLayout)
+public:
+    explicit RestoreLayout(Fuzzer *);
+
+protected:
+    bool hasParams() const override;
+    void updateDescription() override;
+    void execute_impl() override;
+
+    void generateRandomParams() override;
+    QVariantMap paramsToVariantMap() const override;
+    void fillParamsFromVariantMap(const QVariantMap &) override;
+};
+
+}
+}
+}
+
+#endif

tests/fuzzer/main.cpp

@@ -0,0 +1,104 @@
+/*
+  This file is part of KDDockWidgets.
+
+  SPDX-FileCopyrightText: 2019-2023 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
+  Author: Sérgio Martins <sergio.martins@kdab.com>
+
+  SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only
+
+  Contact KDAB at <info@kdab.com> for commercial licensing options.
+*/
+
+// We don't care about performance related checks in the tests
+// clazy:excludeall=ctor-missing-parent-argument,missing-qobject-macro,range-loop,missing-typeinfo,detaching-member,function-args-by-ref,non-pod-global-static,reserve-candidates,qstring-allocations
+
+#include "Fuzzer.h"
+#include "DockRegistry_p.h"
+#include "../utils.h"
+
+#include <QCommandLineParser>
+#include <QApplication>
+#include <QTimer>
+#include <QDebug>
+#include <QFile>
+#include <iostream>
+
+using namespace KDDockWidgets;
+using namespace KDDockWidgets::Testing;
+
+int main(int argc, char **argv)
+{
+    if (!qpaPassedAsArgument(argc, argv)) {
+        // Use offscreen by default as it's less annoying, doesn't create visible windows
+        qputenv("QT_QPA_PLATFORM", "offscreen");
+    }
+
+    QApplication app(argc, argv);
+
+    QCommandLineParser parser;
+    parser.setApplicationDescription("Fuzzer Help");
+    parser.addPositionalArgument("json", QCoreApplication::translate("main", "json file to load"));
+
+    QCommandLineOption slowDownOption("s", QCoreApplication::translate("main", "Slowdown tests. Adds a 1 second delay between operations"));
+    parser.addOption(slowDownOption);
+
+    QCommandLineOption forceDumpJsonOption("f", QCoreApplication::translate("main", "Dump json of the test even if we're already loading a test."));
+    parser.addOption(forceDumpJsonOption);
+
+    QCommandLineOption loopOption("l", QCoreApplication::translate("main", "Loops until it crashes"));
+    parser.addOption(loopOption);
+
+    QCommandLineOption skipLastOption("a", QCoreApplication::translate("main", "Skips the last test (presumably failing)"));
+    parser.addOption(skipLastOption);
+
+    QCommandLineOption noQuitOption("n", QCoreApplication::translate("main", "Don't quit at the end, keep event loop running for debugging"));
+    parser.addOption(noQuitOption);
+
+    parser.addHelpOption();
+    parser.process(app);
+
+    const bool slowDown = parser.isSet(slowDownOption);
+    const bool forceDumpJson = parser.isSet(forceDumpJsonOption);
+
+    const QStringList filesToLoad = parser.positionalArguments();
+    const bool dumpToJsonOnFatal = forceDumpJson || filesToLoad.isEmpty();
+
+
+    Fuzzer::Options options = Fuzzer::Option_None;
+    if (parser.isSet(skipLastOption))
+        options |= Fuzzer::Option_SkipLast;
+
+    if (parser.isSet(noQuitOption))
+        options |= Fuzzer::Option_NoQuit;
+
+    const bool loops = parser.isSet(loopOption);
+
+    Fuzzer fuzzer(dumpToJsonOnFatal, options);
+    if (slowDown)
+        fuzzer.setDelayBetweenOperations(1000);
+
+    for (const QString &file : filesToLoad) {
+        if (!QFile::exists(file)) {
+            std::cerr << "\nFile doesn't exist: " << file.toStdString() << "\n";
+            return 0;
+        }
+    }
+
+    QTimer::singleShot(0, &fuzzer, [&app, &fuzzer, filesToLoad, loops, options] {
+        if (filesToLoad.isEmpty()) {
+            do {
+                fuzzer.fuzz({ 1, 10, true });
+            } while (loops);
+        } else {
+            fuzzer.fuzz(filesToLoad);
+        }
+
+        if (!(options & Fuzzer::Option_NoQuit)) {
+            // if noQuit is true we keep the app running so it can be debugged
+            app.quit();
+        }
+    });
+
+    app.setQuitOnLastWindowClosed(false);
+    return app.exec();
+}

tests/fuzzer/testcases/1.json

@@ -0,0 +1,138 @@
+{
+    "initialLayout": {
+        "dockWidgets": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 593,
+                        "width": 861
+                    },
+                    "x": 55,
+                    "y": 296
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 373,
+                    "width": 344
+                },
+                "name": "DockWidget-1"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 564,
+                        "width": 1097
+                    },
+                    "x": 88,
+                    "y": 430
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 170,
+                    "width": 600
+                },
+                "name": "DockWidget-2"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 350,
+                        "width": 1108
+                    },
+                    "x": 384,
+                    "y": 279
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 295,
+                    "width": 554
+                },
+                "name": "DockWidget-3"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 1040,
+                        "width": 960
+                    },
+                    "x": 325,
+                    "y": 313
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 480,
+                    "width": 565
+                },
+                "name": "DockWidget-4"
+            }
+        ],
+        "mainWindows": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 961,
+                        "width": 472
+                    },
+                    "x": 232,
+                    "y": 79
+                },
+                "mainWindowOption": 0,
+                "name": "MainWindow-1"
+            }
+        ]
+    },
+    "operations": [
+        {
+            "comment": "AddDockWidget DockWidget-2 to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 3,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-4-[hidden] to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-4",
+                "location": 2,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-3 to left, relative to DockWidget-2",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-3",
+                "location": 1,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-2"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Hiding DockWidget-4-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-4"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidget DockWidget-1 to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-1",
+                "location": 2,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        }
+    ]
+}

tests/fuzzer/testcases/10.json

@@ -0,0 +1,761 @@
+{
+    "initialLayout": {
+        "dockWidgets": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 773,
+                        "width": 974
+                    },
+                    "x": 199,
+                    "y": 406
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 578,
+                    "width": 440
+                },
+                "name": "DockWidget-1"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 596,
+                        "width": 981
+                    },
+                    "x": 37,
+                    "y": 38
+                },
+                "isFloating": false,
+                "isVisible": false,
+                "minSize": {
+                    "height": 359,
+                    "width": 436
+                },
+                "name": "DockWidget-2"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 414,
+                        "width": 539
+                    },
+                    "x": 54,
+                    "y": 343
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 216,
+                    "width": 480
+                },
+                "name": "DockWidget-3"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 693,
+                        "width": 878
+                    },
+                    "x": 392,
+                    "y": 369
+                },
+                "isFloating": false,
+                "isVisible": false,
+                "minSize": {
+                    "height": 283,
+                    "width": 367
+                },
+                "name": "DockWidget-4"
+            }
+        ],
+        "mainWindows": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 1275,
+                        "width": 119
+                    },
+                    "x": 323,
+                    "y": 257
+                },
+                "mainWindowOption": 0,
+                "name": "MainWindow-1"
+            }
+        ]
+    },
+    "operations": [
+        {
+            "comment": "Hiding DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidget DockWidget-4-[hidden] to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-4",
+                "location": 3,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-1-[hidden] to top, relative to DockWidget-4",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-1",
+                "location": 2,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-4"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-2-[hidden] to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 4,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-3 onto DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1",
+                "dockWidgetToAddName": "DockWidget-3"
+            },
+            "type": 5
+        },
+        {
+            "comment": "Closing DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidget DockWidget-2-[hidden] to top, relative to DockWidget-1-[hidden]",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 2,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Hiding DockWidget-4",
+            "params": {
+                "dockWidgetName": "DockWidget-4"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Showing DockWidget-4-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-4"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidget DockWidget-4 to right, relative to DockWidget-1-[hidden]",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-4",
+                "location": 3,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Hiding DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Closing DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Hiding DockWidget-4",
+            "params": {
+                "dockWidgetName": "DockWidget-4"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Showing DockWidget-3-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidget DockWidget-3 to left, relative to DockWidget-1-[hidden]",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-3",
+                "location": 1,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-4-[hidden] to top, relative to DockWidget-1",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-4",
+                "location": 2,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-4",
+            "params": {
+                "dockWidgetName": "DockWidget-4"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Hiding DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Closing DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidget DockWidget-4-[hidden] to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-4",
+                "location": 1,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Hiding DockWidget-4",
+            "params": {
+                "dockWidgetName": "DockWidget-4"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Showing DockWidget-4-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-4"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidget DockWidget-1-[hidden] to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-1",
+                "location": 1,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Showing DockWidget-3-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Hiding DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Showing DockWidget-2-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Closing DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Hiding DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidget DockWidget-3-[hidden] to right, relative to DockWidget-4",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-3",
+                "location": 3,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-4"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Showing DockWidget-1-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-1"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidget DockWidget-1 to bottom, relative to DockWidget-4",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-1",
+                "location": 4,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-4"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-2-[hidden] onto DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3",
+                "dockWidgetToAddName": "DockWidget-2"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidget DockWidget-3-[hidden] to right, relative to DockWidget-1",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-3",
+                "location": 3,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-2 to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 4,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Hiding DockWidget-4",
+            "params": {
+                "dockWidgetName": "DockWidget-4"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Closing DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Closing DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Closing DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidget DockWidget-2-[hidden] to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 3,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-1-[hidden] to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-1",
+                "location": 4,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Showing DockWidget-3-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidget DockWidget-1 to bottom, relative to DockWidget-2",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-1",
+                "location": 4,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-2"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-1 to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-1",
+                "location": 4,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-4-[hidden] onto DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3",
+                "dockWidgetToAddName": "DockWidget-4"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidget DockWidget-4 to top, relative to DockWidget-3-[hidden]",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-4",
+                "location": 2,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-3"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Closing DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Closing DockWidget-4",
+            "params": {
+                "dockWidgetName": "DockWidget-4"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-3-[hidden] onto DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1",
+                "dockWidgetToAddName": "DockWidget-3"
+            },
+            "type": 5
+        },
+        {
+            "comment": "Hiding DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-4-[hidden] onto DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1",
+                "dockWidgetToAddName": "DockWidget-4"
+            },
+            "type": 5
+        },
+        {
+            "comment": "Showing DockWidget-2-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Closing DockWidget-4",
+            "params": {
+                "dockWidgetName": "DockWidget-4"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidget DockWidget-3-[hidden] to top, relative to DockWidget-1",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-3",
+                "location": 2,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Closing DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Showing DockWidget-3-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidget DockWidget-3 to left, relative to DockWidget-2",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-3",
+                "location": 1,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-2"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-4-[hidden] to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-4",
+                "location": 4,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-1-[hidden] to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-1",
+                "location": 4,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Hiding DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidget DockWidget-2-[hidden] to bottom, relative to DockWidget-1",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 4,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Hiding DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Hiding DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Hiding DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidget DockWidget-2-[hidden] to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 2,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Hiding DockWidget-4",
+            "params": {
+                "dockWidgetName": "DockWidget-4"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidget DockWidget-3-[hidden] to right, relative to DockWidget-2",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-3",
+                "location": 3,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-2"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Closing DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Showing DockWidget-1-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-1"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-4-[hidden] onto DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1",
+                "dockWidgetToAddName": "DockWidget-4"
+            },
+            "type": 5
+        },
+        {
+            "comment": "Showing DockWidget-2-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-3-[hidden] onto DockWidget-4",
+            "params": {
+                "dockWidgetName": "DockWidget-4",
+                "dockWidgetToAddName": "DockWidget-3"
+            },
+            "type": 5
+        },
+        {
+            "comment": "Closing DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Showing DockWidget-2-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Closing DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Hiding DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidget DockWidget-1-[hidden] to top, relative to DockWidget-4",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-1",
+                "location": 2,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-4"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-3-[hidden] to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-3",
+                "location": 2,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-2-[hidden] onto DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1",
+                "dockWidgetToAddName": "DockWidget-2"
+            },
+            "type": 5
+        }
+    ]
+}

tests/fuzzer/testcases/12.json

@@ -0,0 +1,312 @@
+{
+    "initialLayout": {
+        "dockWidgets": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 1070,
+                        "width": 853
+                    },
+                    "x": 190,
+                    "y": 86
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 490,
+                    "width": 346
+                },
+                "name": "DockWidget-1"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 642,
+                        "width": 724
+                    },
+                    "x": 24,
+                    "y": 397
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 371,
+                    "width": 373
+                },
+                "name": "DockWidget-2"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 615,
+                        "width": 990
+                    },
+                    "x": 82,
+                    "y": 295
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 436,
+                    "width": 533
+                },
+                "name": "DockWidget-3"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 302,
+                        "width": 937
+                    },
+                    "x": 276,
+                    "y": 437
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 211,
+                    "width": 363
+                },
+                "name": "DockWidget-4"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 867,
+                        "width": 1159
+                    },
+                    "x": 66,
+                    "y": 339
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 587,
+                    "width": 570
+                },
+                "name": "DockWidget-5"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 552,
+                        "width": 604
+                    },
+                    "x": 9,
+                    "y": 442
+                },
+                "isFloating": false,
+                "isVisible": false,
+                "minSize": {
+                    "height": 427,
+                    "width": 152
+                },
+                "name": "DockWidget-6"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 706,
+                        "width": 561
+                    },
+                    "x": 397,
+                    "y": 194
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 486,
+                    "width": 388
+                },
+                "name": "DockWidget-7"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 612,
+                        "width": 807
+                    },
+                    "x": 180,
+                    "y": 243
+                },
+                "isFloating": false,
+                "isVisible": false,
+                "minSize": {
+                    "height": 164,
+                    "width": 502
+                },
+                "name": "DockWidget-8"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 286,
+                        "width": 549
+                    },
+                    "x": 448,
+                    "y": 180
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 217,
+                    "width": 408
+                },
+                "name": "DockWidget-9"
+            }
+        ],
+        "mainWindows": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 1047,
+                        "width": 315
+                    },
+                    "x": 372,
+                    "y": 487
+                },
+                "mainWindowOption": 0,
+                "name": "MainWindow-1"
+            }
+        ]
+    },
+    "operations": [
+        {
+            "comment": "AddDockWidget DockWidget-6 to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-6",
+                "location": 1,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-4-[hidden] to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-4",
+                "location": 2,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-3 to bottom, relative to DockWidget-4",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-3",
+                "location": 4,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-4"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Showing DockWidget-8-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-8"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidget DockWidget-1 to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-1",
+                "location": 3,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-5 onto DockWidget-6",
+            "params": {
+                "dockWidgetName": "DockWidget-6",
+                "dockWidgetToAddName": "DockWidget-5"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidget DockWidget-8-[hidden] to bottom, relative to DockWidget-1",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-8",
+                "location": 4,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-1"
+            },
+            "type": 4
+        },
+
+        {
+            "comment": "AddDockWidget DockWidget-2-[hidden] to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 2,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidget DockWidget-6-[hidden] to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-6",
+                "location": 3,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-6",
+            "params": {
+                "dockWidgetName": "DockWidget-6"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidget DockWidget-1 to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-1",
+                "location": 3,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Hiding DockWidget-5",
+            "params": {
+                "dockWidgetName": "DockWidget-5"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidget DockWidget-4-[hidden] to left, relative to DockWidget-1",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-4",
+                "location": 1,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-8",
+            "params": {
+                "dockWidgetName": "DockWidget-8"
+            },
+            "type": 1
+        }
+    ]
+}

tests/fuzzer/testcases/14.json

@@ -0,0 +1,599 @@
+{
+    "initialLayout": {
+        "dockWidgets": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 732,
+                        "width": 504
+                    },
+                    "x": 386,
+                    "y": 208
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 539,
+                    "width": 267
+                },
+                "name": "DockWidget-1"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 986,
+                        "width": 633
+                    },
+                    "x": 334,
+                    "y": 215
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 414,
+                    "width": 352
+                },
+                "name": "DockWidget-2"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 447,
+                        "width": 474
+                    },
+                    "x": 387,
+                    "y": 414
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 182,
+                    "width": 394
+                },
+                "name": "DockWidget-3"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 403,
+                        "width": 579
+                    },
+                    "x": 468,
+                    "y": 374
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 165,
+                    "width": 168
+                },
+                "name": "DockWidget-4"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 689,
+                        "width": 784
+                    },
+                    "x": 252,
+                    "y": 482
+                },
+                "isFloating": true,
+                "isVisible": false,
+                "minSize": {
+                    "height": 178,
+                    "width": 500
+                },
+                "name": "DockWidget-5"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 724,
+                        "width": 701
+                    },
+                    "x": 368,
+                    "y": 225
+                },
+                "isFloating": false,
+                "isVisible": false,
+                "minSize": {
+                    "height": 155,
+                    "width": 276
+                },
+                "name": "DockWidget-6"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 410,
+                        "width": 627
+                    },
+                    "x": 223,
+                    "y": 121
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 335,
+                    "width": 524
+                },
+                "name": "DockWidget-7"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 734,
+                        "width": 984
+                    },
+                    "x": 17,
+                    "y": 390
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 196,
+                    "width": 480
+                },
+                "name": "DockWidget-8"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 455,
+                        "width": 589
+                    },
+                    "x": 47,
+                    "y": 134
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 225,
+                    "width": 290
+                },
+                "name": "DockWidget-9"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 847,
+                        "width": 739
+                    },
+                    "x": 155,
+                    "y": 331
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 504,
+                    "width": 184
+                },
+                "name": "DockWidget-10"
+            }
+        ],
+        "mainWindows": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 1350,
+                        "width": 288
+                    },
+                    "x": 336,
+                    "y": 411
+                },
+                "mainWindowOption": 0,
+                "name": "MainWindow-1"
+            }
+        ]
+    },
+    "operations": [
+        {
+            "comment": "Closing DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidget DockWidget-6-[hidden] to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-6",
+                "location": 1,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Hiding DockWidget-4",
+            "params": {
+                "dockWidgetName": "DockWidget-4"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-3-[hidden] onto DockWidget-8",
+            "params": {
+                "dockWidgetName": "DockWidget-8",
+                "dockWidgetToAddName": "DockWidget-3"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidget DockWidget-8-[hidden] to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-8",
+                "location": 3,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-5-[hidden] to top, relative to DockWidget-6",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-5",
+                "location": 2,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-6"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-2 to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 2,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Hiding DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Closing DockWidget-7",
+            "params": {
+                "dockWidgetName": "DockWidget-7"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-1 onto DockWidget-10",
+            "params": {
+                "dockWidgetName": "DockWidget-10",
+                "dockWidgetToAddName": "DockWidget-1"
+            },
+            "type": 5
+        },
+        {
+            "comment": "Closing DockWidget-9",
+            "params": {
+                "dockWidgetName": "DockWidget-9"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidget DockWidget-9-[hidden] to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-9",
+                "location": 1,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-7-[hidden] to left, relative to DockWidget-8",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-7",
+                "location": 1,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-8"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-9",
+            "params": {
+                "dockWidgetName": "DockWidget-9"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Hiding DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Closing DockWidget-6",
+            "params": {
+                "dockWidgetName": "DockWidget-6"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Hiding DockWidget-8",
+            "params": {
+                "dockWidgetName": "DockWidget-8"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Showing DockWidget-1-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-1"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Hiding DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidget DockWidget-5 to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-5",
+                "location": 3,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-5 onto DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1",
+                "dockWidgetToAddName": "DockWidget-5"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-7 onto DockWidget-1-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-1",
+                "dockWidgetToAddName": "DockWidget-7"
+            },
+            "type": 5
+        },
+        {
+            "comment": "Showing DockWidget-3-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidget DockWidget-2-[hidden] to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 3,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-4-[hidden] to right, relative to DockWidget-2",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-4",
+                "location": 3,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-2"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Showing DockWidget-6-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-6"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-3 onto DockWidget-7",
+            "params": {
+                "dockWidgetName": "DockWidget-7",
+                "dockWidgetToAddName": "DockWidget-3"
+            },
+            "type": 5
+        },
+        {
+            "comment": "Closing DockWidget-10",
+            "params": {
+                "dockWidgetName": "DockWidget-10"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidget DockWidget-8-[hidden] to top, relative to DockWidget-2",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-8",
+                "location": 2,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-2"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-7-[hidden] onto DockWidget-8",
+            "params": {
+                "dockWidgetName": "DockWidget-8",
+                "dockWidgetToAddName": "DockWidget-7"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidget DockWidget-9-[hidden] to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-9",
+                "location": 2,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-3 onto DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2",
+                "dockWidgetToAddName": "DockWidget-3"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidget DockWidget-6 to left, relative to DockWidget-8-[hidden]",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-6",
+                "location": 1,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-8"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-8-[hidden] to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-8",
+                "location": 2,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-8 onto DockWidget-5",
+            "params": {
+                "dockWidgetName": "DockWidget-5",
+                "dockWidgetToAddName": "DockWidget-8"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-8 onto DockWidget-2-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-2",
+                "dockWidgetToAddName": "DockWidget-8"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-5 onto DockWidget-9",
+            "params": {
+                "dockWidgetName": "DockWidget-9",
+                "dockWidgetToAddName": "DockWidget-5"
+            },
+            "type": 5
+        },
+        {
+            "comment": "Closing DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Hiding DockWidget-7",
+            "params": {
+                "dockWidgetName": "DockWidget-7"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-1-[hidden] onto DockWidget-4",
+            "params": {
+                "dockWidgetName": "DockWidget-4",
+                "dockWidgetToAddName": "DockWidget-1"
+            },
+            "type": 5
+        },
+        {
+            "comment": "Showing DockWidget-3-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Closing DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-10-[hidden] onto DockWidget-5",
+            "params": {
+                "dockWidgetName": "DockWidget-5",
+                "dockWidgetToAddName": "DockWidget-10"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidget DockWidget-5-[hidden] to right, relative to DockWidget-9-[hidden]",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-5",
+                "location": 3,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-9"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-5 to right, relative to DockWidget-6",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-5",
+                "location": 3,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-6"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-10",
+            "params": {
+                "dockWidgetName": "DockWidget-10"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Showing DockWidget-2-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Hiding DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Showing DockWidget-7-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-7"
+            },
+            "type": 3
+        }
+    ]
+}

tests/fuzzer/testcases/15.json

@@ -0,0 +1,364 @@
+{
+    "initialLayout": {
+        "dockWidgets": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 1050,
+                        "width": 873
+                    },
+                    "x": 389,
+                    "y": 359
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 539,
+                    "width": 599
+                },
+                "name": "DockWidget-47"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 767,
+                        "width": 1008
+                    },
+                    "x": 483,
+                    "y": 478
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 415,
+                    "width": 502
+                },
+                "name": "DockWidget-48"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 347,
+                        "width": 802
+                    },
+                    "x": 168,
+                    "y": 291
+                },
+                "isFloating": true,
+                "isVisible": false,
+                "minSize": {
+                    "height": 252,
+                    "width": 248
+                },
+                "name": "DockWidget-49"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 514,
+                        "width": 750
+                    },
+                    "x": 77,
+                    "y": 43
+                },
+                "isFloating": false,
+                "isVisible": false,
+                "minSize": {
+                    "height": 165,
+                    "width": 580
+                },
+                "name": "DockWidget-50"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 777,
+                        "width": 635
+                    },
+                    "x": 392,
+                    "y": 37
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 548,
+                    "width": 558
+                },
+                "name": "DockWidget-51"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 803,
+                        "width": 526
+                    },
+                    "x": 409,
+                    "y": 109
+                },
+                "isFloating": true,
+                "isVisible": false,
+                "minSize": {
+                    "height": 288,
+                    "width": 205
+                },
+                "name": "DockWidget-52"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 925,
+                        "width": 1044
+                    },
+                    "x": 175,
+                    "y": 159
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 531,
+                    "width": 508
+                },
+                "name": "DockWidget-53"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 1003,
+                        "width": 688
+                    },
+                    "x": 384,
+                    "y": 293
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 564,
+                    "width": 170
+                },
+                "name": "DockWidget-54"
+            }
+        ],
+        "mainWindows": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 965,
+                        "width": 337
+                    },
+                    "x": 445,
+                    "y": 485
+                },
+                "mainWindowOption": 0,
+                "name": "MainWindow-9"
+            }
+        ]
+    },
+    "operations": [
+        {
+            "comment": "AddDockWidget DockWidget-49-[hidden] to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-49",
+                "location": 2,
+                "mainWindowName": "MainWindow-9"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-51-[hidden] onto DockWidget-53-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-53",
+                "dockWidgetToAddName": "DockWidget-51"
+            },
+            "type": 5
+        },
+        {
+            "comment": "Showing DockWidget-49-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-49"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Closing DockWidget-49",
+            "params": {
+                "dockWidgetName": "DockWidget-49"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidget DockWidget-48-[hidden] to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-48",
+                "location": 4,
+                "mainWindowName": "MainWindow-9"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-53-[hidden] to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-53",
+                "location": 4,
+                "mainWindowName": "MainWindow-9"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-51",
+            "params": {
+                "dockWidgetName": "DockWidget-51"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Showing DockWidget-49-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-49"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Closing DockWidget-49",
+            "params": {
+                "dockWidgetName": "DockWidget-49"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Showing DockWidget-52-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-52"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidget DockWidget-54-[hidden] to bottom, relative to DockWidget-48",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-54",
+                "location": 4,
+                "mainWindowName": "MainWindow-9",
+                "relativeToName": "DockWidget-48"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-50-[hidden] to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-50",
+                "location": 4,
+                "mainWindowName": "MainWindow-9"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-50",
+            "params": {
+                "dockWidgetName": "DockWidget-50"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-48 onto DockWidget-52",
+            "params": {
+                "dockWidgetName": "DockWidget-52",
+                "dockWidgetToAddName": "DockWidget-48"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidget DockWidget-52-[hidden] to left, relative to DockWidget-53",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-52",
+                "location": 1,
+                "mainWindowName": "MainWindow-9",
+                "relativeToName": "DockWidget-53"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Showing DockWidget-50-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-50"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidget DockWidget-53-[hidden] to left, relative to DockWidget-52",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-53",
+                "location": 1,
+                "mainWindowName": "MainWindow-9",
+                "relativeToName": "DockWidget-52"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-53",
+            "params": {
+                "dockWidgetName": "DockWidget-53"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Closing DockWidget-52",
+            "params": {
+                "dockWidgetName": "DockWidget-52"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidget DockWidget-47-[hidden] to left, relative to DockWidget-50",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-47",
+                "location": 1,
+                "mainWindowName": "MainWindow-9",
+                "relativeToName": "DockWidget-50"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-47",
+            "params": {
+                "dockWidgetName": "DockWidget-47"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Showing DockWidget-48-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-48"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Showing DockWidget-49-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-49"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Showing DockWidget-52-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-52"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-47-[hidden] onto DockWidget-49",
+            "params": {
+                "dockWidgetName": "DockWidget-49",
+                "dockWidgetToAddName": "DockWidget-47"
+            },
+            "type": 5
+        }
+    ]
+}

tests/fuzzer/testcases/16.json

@@ -0,0 +1,212 @@
+{
+    "initialLayout": {
+        "dockWidgets": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 757,
+                        "width": 748
+                    },
+                    "x": 352,
+                    "y": 17
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 302,
+                    "width": 541
+                },
+                "name": "DockWidget-1"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 930,
+                        "width": 1083
+                    },
+                    "x": 64,
+                    "y": 35
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 462,
+                    "width": 553
+                },
+                "name": "DockWidget-2"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 665,
+                        "width": 1031
+                    },
+                    "x": 207,
+                    "y": 178
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 402,
+                    "width": 523
+                },
+                "name": "DockWidget-3"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 525,
+                        "width": 962
+                    },
+                    "x": 118,
+                    "y": 157
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 322,
+                    "width": 460
+                },
+                "name": "DockWidget-4"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 920,
+                        "width": 618
+                    },
+                    "x": 199,
+                    "y": 154
+                },
+                "isFloating": true,
+                "isVisible": false,
+                "minSize": {
+                    "height": 425,
+                    "width": 249
+                },
+                "name": "DockWidget-5"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 770,
+                        "width": 538
+                    },
+                    "x": 323,
+                    "y": 203
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 523,
+                    "width": 451
+                },
+                "name": "DockWidget-6"
+            }
+        ],
+        "mainWindows": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 1487,
+                        "width": 307
+                    },
+                    "x": 42,
+                    "y": 118
+                },
+                "mainWindowOption": 0,
+                "name": "MainWindow-17"
+            }
+        ]
+    },
+    "operations": [
+
+        {
+            "comment": "AddDockWidget DockWidget-4-[hidden] to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-4",
+                "location": 2,
+                "mainWindowName": "MainWindow-17"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-1 to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-1",
+                "location": 1,
+                "mainWindowName": "MainWindow-17"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-6-[hidden] onto DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1",
+                "dockWidgetToAddName": "DockWidget-6"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidget DockWidget-1-[hidden] to right, relative to DockWidget-4",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-1",
+                "location": 3,
+                "mainWindowName": "MainWindow-17",
+                "relativeToName": "DockWidget-4"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-6",
+            "params": {
+                "dockWidgetName": "DockWidget-6"
+            },
+            "type": 1
+        },
+
+        {
+            "comment": "AddDockWidget DockWidget-5 to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-5",
+                "location": 1,
+                "mainWindowName": "MainWindow-17"
+            },
+            "type": 4
+        },
+
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-4-[hidden] onto DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3",
+                "dockWidgetToAddName": "DockWidget-4"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidget DockWidget-2 to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 1,
+                "mainWindowName": "MainWindow-17"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-4 to right, relative to DockWidget-5",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-4",
+                "location": 3,
+                "mainWindowName": "MainWindow-17",
+                "relativeToName": "DockWidget-5"
+            },
+            "type": 4
+        }
+    ]
+}

tests/fuzzer/testcases/17.json

@@ -0,0 +1,159 @@
+{
+    "initialLayout": {
+        "dockWidgets": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 976,
+                        "width": 1087
+                    },
+                    "x": 298,
+                    "y": 13
+                },
+                "isFloating": false,
+                "isVisible": false,
+                "minSize": {
+                    "height": 447,
+                    "width": 498
+                },
+                "name": "DockWidget-1"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 793,
+                        "width": 897
+                    },
+                    "x": 322,
+                    "y": 491
+                },
+                "isFloating": false,
+                "isVisible": false,
+                "minSize": {
+                    "height": 565,
+                    "width": 544
+                },
+                "name": "DockWidget-2"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 426,
+                        "width": 972
+                    },
+                    "x": 54,
+                    "y": 88
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 284,
+                    "width": 596
+                },
+                "name": "DockWidget-3"
+            }
+        ],
+        "mainWindows": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 1425,
+                        "width": 145
+                    },
+                    "x": 20,
+                    "y": 2
+                },
+                "mainWindowOption": 0,
+                "name": "MainWindow-1"
+            }
+        ]
+    },
+    "operations": [
+        {
+            "comment": "AddDockWidget DockWidget-2-[hidden] to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 2,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidget DockWidget-3 to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-3",
+                "location": 1,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-3 to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-3",
+                "location": 3,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidget DockWidget-3-[hidden] to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-3",
+                "location": 1,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-1-[hidden] to top, relative to DockWidget-3",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-1",
+                "location": 2,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-3"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Hiding DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Closing DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Showing DockWidget-3-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 3
+        }
+    ]
+}

tests/fuzzer/testcases/18.json

@@ -0,0 +1,905 @@
+{
+    "initialLayout": {
+        "dockWidgets": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 496,
+                        "width": 260
+                    },
+                    "x": 213,
+                    "y": 149
+                },
+                "isFloating": false,
+                "isVisible": false,
+                "minSize": {
+                    "height": 324,
+                    "width": 183
+                },
+                "name": "DockWidget-1"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 784,
+                        "width": 342
+                    },
+                    "x": 42,
+                    "y": 428
+                },
+                "isFloating": false,
+                "isVisible": false,
+                "minSize": {
+                    "height": 247,
+                    "width": 247
+                },
+                "name": "DockWidget-2"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 789,
+                        "width": 566
+                    },
+                    "x": 294,
+                    "y": 396
+                },
+                "isFloating": true,
+                "isVisible": false,
+                "minSize": {
+                    "height": 502,
+                    "width": 345
+                },
+                "name": "DockWidget-3"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 948,
+                        "width": 440
+                    },
+                    "x": 461,
+                    "y": 56
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 568,
+                    "width": 246
+                },
+                "name": "DockWidget-4"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 642,
+                        "width": 529
+                    },
+                    "x": 172,
+                    "y": 192
+                },
+                "isFloating": true,
+                "isVisible": false,
+                "minSize": {
+                    "height": 213,
+                    "width": 268
+                },
+                "name": "DockWidget-5"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 1089,
+                        "width": 305
+                    },
+                    "x": 212,
+                    "y": 8
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 567,
+                    "width": 165
+                },
+                "name": "DockWidget-6"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 632,
+                        "width": 892
+                    },
+                    "x": 477,
+                    "y": 51
+                },
+                "isFloating": false,
+                "isVisible": false,
+                "minSize": {
+                    "height": 329,
+                    "width": 407
+                },
+                "name": "DockWidget-7"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 653,
+                        "width": 665
+                    },
+                    "x": 228,
+                    "y": 458
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 440,
+                    "width": 371
+                },
+                "name": "DockWidget-8"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 612,
+                        "width": 560
+                    },
+                    "x": 371,
+                    "y": 63
+                },
+                "isFloating": false,
+                "isVisible": false,
+                "minSize": {
+                    "height": 534,
+                    "width": 300
+                },
+                "name": "DockWidget-9"
+            }
+        ],
+        "mainWindows": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 1199,
+                        "width": 305
+                    },
+                    "x": 180,
+                    "y": 209
+                },
+                "mainWindowOption": 0,
+                "name": "MainWindow-1"
+            }
+        ]
+    },
+    "operations": [
+        {
+            "comment": "AddDockWidget DockWidget-5-[hidden] to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-5",
+                "location": 2,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-4 to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-4",
+                "location": 3,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-5 onto DockWidget-8",
+            "params": {
+                "dockWidgetName": "DockWidget-8",
+                "dockWidgetToAddName": "DockWidget-5"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidget DockWidget-6 to top, relative to DockWidget-4",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-6",
+                "location": 2,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-4"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-1-[hidden] onto DockWidget-7",
+            "params": {
+                "dockWidgetName": "DockWidget-7",
+                "dockWidgetToAddName": "DockWidget-1"
+            },
+            "type": 5
+        },
+        {
+            "comment": "Hiding DockWidget-4",
+            "params": {
+                "dockWidgetName": "DockWidget-4"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidget DockWidget-2-[hidden] to left, relative to DockWidget-6",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 1,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-6"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-6",
+            "params": {
+                "dockWidgetName": "DockWidget-6"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Closing DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Showing DockWidget-4-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-4"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidget DockWidget-7-[hidden] to right, relative to DockWidget-4",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-7",
+                "location": 3,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-4"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidget DockWidget-6-[hidden] to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-6",
+                "location": 3,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-2 to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 2,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Hiding DockWidget-5",
+            "params": {
+                "dockWidgetName": "DockWidget-5"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Hiding DockWidget-7",
+            "params": {
+                "dockWidgetName": "DockWidget-7"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Closing DockWidget-8",
+            "params": {
+                "dockWidgetName": "DockWidget-8"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Closing DockWidget-4",
+            "params": {
+                "dockWidgetName": "DockWidget-4"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-7-[hidden] onto DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2",
+                "dockWidgetToAddName": "DockWidget-7"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidget DockWidget-3-[hidden] to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-3",
+                "location": 1,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Showing DockWidget-4-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-4"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidget DockWidget-9-[hidden] to left, relative to DockWidget-6",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-9",
+                "location": 1,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-6"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Hiding DockWidget-9",
+            "params": {
+                "dockWidgetName": "DockWidget-9"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-5-[hidden] onto DockWidget-6",
+            "params": {
+                "dockWidgetName": "DockWidget-6",
+                "dockWidgetToAddName": "DockWidget-5"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidget DockWidget-5 to right, relative to DockWidget-6-[hidden]",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-5",
+                "location": 3,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-6"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Showing DockWidget-1-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-1"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Showing DockWidget-2-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Closing DockWidget-4",
+            "params": {
+                "dockWidgetName": "DockWidget-4"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Showing DockWidget-9-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-9"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidget DockWidget-4-[hidden] to right, relative to DockWidget-2",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-4",
+                "location": 3,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-2"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Showing DockWidget-3-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-1 onto DockWidget-5",
+            "params": {
+                "dockWidgetName": "DockWidget-5",
+                "dockWidgetToAddName": "DockWidget-1"
+            },
+            "type": 5
+        },
+        {
+            "comment": "Showing DockWidget-5-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-5"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Hiding DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Hiding DockWidget-5",
+            "params": {
+                "dockWidgetName": "DockWidget-5"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Hiding DockWidget-7",
+            "params": {
+                "dockWidgetName": "DockWidget-7"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidget DockWidget-9 to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-9",
+                "location": 1,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-6 to top, relative to DockWidget-4",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-6",
+                "location": 2,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-4"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidget DockWidget-3-[hidden] to left, relative to DockWidget-6",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-3",
+                "location": 1,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-6"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Showing DockWidget-5-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-5"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidget DockWidget-2-[hidden] to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 4,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-6 to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-6",
+                "location": 4,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-7-[hidden] onto DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2",
+                "dockWidgetToAddName": "DockWidget-7"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-8-[hidden] onto DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3",
+                "dockWidgetToAddName": "DockWidget-8"
+            },
+            "type": 5
+        },
+        {
+            "comment": "Hiding DockWidget-9",
+            "params": {
+                "dockWidgetName": "DockWidget-9"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Closing DockWidget-7",
+            "params": {
+                "dockWidgetName": "DockWidget-7"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Closing DockWidget-4",
+            "params": {
+                "dockWidgetName": "DockWidget-4"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidget DockWidget-1-[hidden] to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-1",
+                "location": 2,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Hiding DockWidget-6",
+            "params": {
+                "dockWidgetName": "DockWidget-6"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-6-[hidden] onto DockWidget-8",
+            "params": {
+                "dockWidgetName": "DockWidget-8",
+                "dockWidgetToAddName": "DockWidget-6"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidget DockWidget-2 to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 4,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-6 to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-6",
+                "location": 4,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-5 to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-5",
+                "location": 1,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-3-[hidden] to bottom, relative to DockWidget-6",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-3",
+                "location": 4,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-6"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-3 to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-3",
+                "location": 3,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Showing DockWidget-7-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-7"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Closing DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Hiding DockWidget-8",
+            "params": {
+                "dockWidgetName": "DockWidget-8"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Hiding DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidget DockWidget-9-[hidden] to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-9",
+                "location": 1,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-6 to right, relative to DockWidget-5",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-6",
+                "location": 3,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-5"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-1-[hidden] onto DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3",
+                "dockWidgetToAddName": "DockWidget-1"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidget DockWidget-9 to left, relative to DockWidget-3-[hidden]",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-9",
+                "location": 1,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-3"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-7 to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-7",
+                "location": 4,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-6",
+            "params": {
+                "dockWidgetName": "DockWidget-6"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidget DockWidget-9 to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-9",
+                "location": 2,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-1 to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-1",
+                "location": 4,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-6-[hidden] to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-6",
+                "location": 3,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Hiding DockWidget-6",
+            "params": {
+                "dockWidgetName": "DockWidget-6"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Closing DockWidget-5",
+            "params": {
+                "dockWidgetName": "DockWidget-5"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Showing DockWidget-8-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-8"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Closing DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Hiding DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidget DockWidget-8 to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-8",
+                "location": 4,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-9",
+            "params": {
+                "dockWidgetName": "DockWidget-9"
+            },
+            "type": 1
+        },
+
+        {
+            "comment": "AddDockWidget DockWidget-8-[hidden] to top, relative to DockWidget-7",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-8",
+                "location": 2,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-7"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Showing DockWidget-6-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-6"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Closing DockWidget-8",
+            "params": {
+                "dockWidgetName": "DockWidget-8"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Hiding DockWidget-7",
+            "params": {
+                "dockWidgetName": "DockWidget-7"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Showing DockWidget-9-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-9"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidget DockWidget-9 to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-9",
+                "location": 2,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+
+        {
+            "comment": "Hiding DockWidget-9",
+            "params": {
+                "dockWidgetName": "DockWidget-9"
+            },
+            "type": 2
+        },
+
+        {
+            "comment": "Showing DockWidget-7-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-7"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Showing DockWidget-4-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-4"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Showing DockWidget-9-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-9"
+            },
+            "type": 3
+        }
+    ]
+}

tests/fuzzer/testcases/19.json

@@ -0,0 +1,378 @@
+{
+    "initialLayout": {
+        "dockWidgets": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 774,
+                        "width": 1127
+                    },
+                    "x": 176,
+                    "y": 165
+                },
+                "isFloating": true,
+                "isVisible": false,
+                "minSize": {
+                    "height": 476,
+                    "width": 564
+                },
+                "name": "DockWidget-1"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 518,
+                        "width": 755
+                    },
+                    "x": 319,
+                    "y": 447
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 178,
+                    "width": 459
+                },
+                "name": "DockWidget-2"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 828,
+                        "width": 838
+                    },
+                    "x": 260,
+                    "y": 237
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 266,
+                    "width": 485
+                },
+                "name": "DockWidget-3"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 808,
+                        "width": 509
+                    },
+                    "x": 243,
+                    "y": 415
+                },
+                "isFloating": false,
+                "isVisible": false,
+                "minSize": {
+                    "height": 578,
+                    "width": 351
+                },
+                "name": "DockWidget-4"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 773,
+                        "width": 754
+                    },
+                    "x": 494,
+                    "y": 428
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 369,
+                    "width": 327
+                },
+                "name": "DockWidget-5"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 672,
+                        "width": 471
+                    },
+                    "x": 433,
+                    "y": 245
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 463,
+                    "width": 191
+                },
+                "name": "DockWidget-6"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 701,
+                        "width": 525
+                    },
+                    "x": 30,
+                    "y": 367
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 596,
+                    "width": 156
+                },
+                "name": "DockWidget-7"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 723,
+                        "width": 599
+                    },
+                    "x": 254,
+                    "y": 203
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 251,
+                    "width": 447
+                },
+                "name": "DockWidget-8"
+            }
+        ],
+        "mainWindows": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 808,
+                        "width": 126
+                    },
+                    "x": 173,
+                    "y": 460
+                },
+                "mainWindowOption": 0,
+                "name": "MainWindow-1"
+            }
+        ]
+    },
+    "operations": [
+        {
+            "comment": "AddDockWidget DockWidget-4-[hidden] to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-4",
+                "location": 1,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidget DockWidget-2 to right, relative to DockWidget-4",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 3,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-4"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-4 onto DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3",
+                "dockWidgetToAddName": "DockWidget-4"
+            },
+            "type": 5
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 3
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 5
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidget DockWidget-2 to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 4,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "SaveLayout",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "SaveLayout",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-4 onto DockWidget-6",
+            "params": {
+                "dockWidgetName": "DockWidget-6",
+                "dockWidgetToAddName": "DockWidget-4"
+            },
+            "type": 5
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidget DockWidget-2 to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 4,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "SaveLayout",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "Closing DockWidget-4",
+            "params": {
+                "dockWidgetName": "DockWidget-4"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Hiding DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 2
+        },
+        {
+            "comment": "SaveLayout",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "RestoreLayout",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "AddDockWidget DockWidget-2-[hidden] to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 3,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-4-[hidden] to left, relative to DockWidget-2",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-4",
+                "location": 1,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-2"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-5 onto DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3",
+                "dockWidgetToAddName": "DockWidget-5"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidget DockWidget-5 to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-5",
+                "location": 1,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-5 to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-5",
+                "location": 1,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidget DockWidget-7 to right, relative to DockWidget-5",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-7",
+                "location": 3,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-5"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-1-[hidden] onto DockWidget-4",
+            "params": {
+                "dockWidgetName": "DockWidget-4",
+                "dockWidgetToAddName": "DockWidget-1"
+            },
+            "type": 5
+        },
+
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-1 onto DockWidget-8",
+            "params": {
+                "dockWidgetName": "DockWidget-8",
+                "dockWidgetToAddName": "DockWidget-1"
+            },
+            "type": 5
+        }
+    ]
+}

tests/fuzzer/testcases/2.json

@@ -0,0 +1,212 @@
+{
+    "initialLayout": {
+        "dockWidgets": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 410,
+                        "width": 531
+                    },
+                    "x": 359,
+                    "y": 134
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 258,
+                    "width": 175
+                },
+                "name": "DockWidget-1"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 588,
+                        "width": 651
+                    },
+                    "x": 369,
+                    "y": 7
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 438,
+                    "width": 373
+                },
+                "name": "DockWidget-2"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 969,
+                        "width": 279
+                    },
+                    "x": 302,
+                    "y": 60
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 392,
+                    "width": 172
+                },
+                "name": "DockWidget-3"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 645,
+                        "width": 562
+                    },
+                    "x": 115,
+                    "y": 448
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 584,
+                    "width": 346
+                },
+                "name": "DockWidget-4"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 586,
+                        "width": 270
+                    },
+                    "x": 217,
+                    "y": 397
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 458,
+                    "width": 152
+                },
+                "name": "DockWidget-5"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 762,
+                        "width": 460
+                    },
+                    "x": 40,
+                    "y": 90
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 476,
+                    "width": 268
+                },
+                "name": "DockWidget-6"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 873,
+                        "width": 644
+                    },
+                    "x": 3,
+                    "y": 26
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 533,
+                    "width": 246
+                },
+                "name": "DockWidget-7"
+            }
+        ],
+        "mainWindows": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 1163,
+                        "width": 36
+                    },
+                    "x": 95,
+                    "y": 56
+                },
+                "mainWindowOption": 0,
+                "name": "MainWindow-1"
+            }
+        ]
+    },
+    "operations": [
+        {
+            "comment": "AddDockWidget DockWidget-2 to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 3,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-7 onto DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2",
+                "dockWidgetToAddName": "DockWidget-7"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-2-[hidden] onto DockWidget-4",
+            "params": {
+                "dockWidgetName": "DockWidget-4",
+                "dockWidgetToAddName": "DockWidget-2"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidget DockWidget-4-[hidden] to bottom, relative to DockWidget-7",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-4",
+                "location": 4,
+                "mainWindowName": "MainWindow-1",
+                "relativeToName": "DockWidget-7"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Hiding DockWidget-7",
+            "params": {
+                "dockWidgetName": "DockWidget-7"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidget DockWidget-3 to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-3",
+                "location": 4,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-5 to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-5",
+                "location": 2,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Showing DockWidget-7-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-7"
+            },
+            "type": 3
+        }
+    ]
+}

tests/fuzzer/testcases/20.json

@@ -0,0 +1,833 @@
+{
+    "initialLayout": {
+        "dockWidgets": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 793,
+                        "width": 728
+                    },
+                    "x": 143,
+                    "y": 290
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 445,
+                    "width": 576
+                },
+                "name": "DockWidget-70"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 749,
+                        "width": 1001
+                    },
+                    "x": 358,
+                    "y": 224
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 406,
+                    "width": 579
+                },
+                "name": "DockWidget-71"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 243,
+                        "width": 480
+                    },
+                    "x": 498,
+                    "y": 284
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 184,
+                    "width": 191
+                },
+                "name": "DockWidget-72"
+            }
+        ],
+        "mainWindows": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 1409,
+                        "width": 109
+                    },
+                    "x": 243,
+                    "y": 241
+                },
+                "mainWindowOption": 0,
+                "name": "MainWindow-14"
+            }
+        ]
+    },
+    "operations": [
+        {
+            "comment": "Closing DockWidget-72",
+            "params": {
+                "dockWidgetName": "DockWidget-72"
+            },
+            "type": 1
+        },
+        {
+            "comment": "RestoreLayout",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "Closing DockWidget-70",
+            "params": {
+                "dockWidgetName": "DockWidget-70"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Closing DockWidget-71",
+            "params": {
+                "dockWidgetName": "DockWidget-71"
+            },
+            "type": 1
+        },
+        {
+            "comment": "SaveLayout",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "SaveLayout",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "Showing DockWidget-70-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-70"
+            },
+            "type": 3
+        },
+        {
+            "comment": "SaveLayout",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "SaveLayout",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "Hiding DockWidget-70",
+            "params": {
+                "dockWidgetName": "DockWidget-70"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Showing DockWidget-71-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-71"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-72-[hidden] onto DockWidget-71",
+            "params": {
+                "dockWidgetName": "DockWidget-71",
+                "dockWidgetToAddName": "DockWidget-72"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidget DockWidget-70-[hidden] to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-70",
+                "location": 1,
+                "mainWindowName": "MainWindow-14"
+            },
+            "type": 4
+        },
+        {
+            "comment": "SaveLayout",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "Hiding DockWidget-72",
+            "params": {
+                "dockWidgetName": "DockWidget-72"
+            },
+            "type": 2
+        },
+        {
+            "comment": "SaveLayout",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-72-[hidden] onto DockWidget-71",
+            "params": {
+                "dockWidgetName": "DockWidget-71",
+                "dockWidgetToAddName": "DockWidget-72"
+            },
+            "type": 5
+        },
+        {
+            "comment": "Showing DockWidget-71-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-71"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Hiding DockWidget-72",
+            "params": {
+                "dockWidgetName": "DockWidget-72"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Showing DockWidget-72-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-72"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Hiding DockWidget-71",
+            "params": {
+                "dockWidgetName": "DockWidget-71"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-71-[hidden] onto DockWidget-70",
+            "params": {
+                "dockWidgetName": "DockWidget-70",
+                "dockWidgetToAddName": "DockWidget-71"
+            },
+            "type": 5
+        },
+        {
+            "comment": "RestoreLayout",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "Closing DockWidget-70",
+            "params": {
+                "dockWidgetName": "DockWidget-70"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Hiding DockWidget-71",
+            "params": {
+                "dockWidgetName": "DockWidget-71"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Showing DockWidget-72-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-72"
+            },
+            "type": 3
+        },
+        {
+            "comment": "RestoreLayout",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "Hiding DockWidget-71",
+            "params": {
+                "dockWidgetName": "DockWidget-71"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-71-[hidden] onto DockWidget-70",
+            "params": {
+                "dockWidgetName": "DockWidget-70",
+                "dockWidgetToAddName": "DockWidget-71"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidget DockWidget-71 to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-71",
+                "location": 1,
+                "mainWindowName": "MainWindow-14"
+            },
+            "type": 4
+        },
+        {
+            "comment": "RestoreLayout",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "RestoreLayout",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "RestoreLayout",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "Closing DockWidget-70",
+            "params": {
+                "dockWidgetName": "DockWidget-70"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-72-[hidden] onto DockWidget-71",
+            "params": {
+                "dockWidgetName": "DockWidget-71",
+                "dockWidgetToAddName": "DockWidget-72"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-70-[hidden] onto DockWidget-71-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-71",
+                "dockWidgetToAddName": "DockWidget-70"
+            },
+            "type": 5
+        },
+        {
+            "comment": "SaveLayout",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "AddDockWidget DockWidget-72-[hidden] to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-72",
+                "location": 1,
+                "mainWindowName": "MainWindow-14"
+            },
+            "type": 4
+        },
+        {
+            "comment": "SaveLayout",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "AddDockWidget DockWidget-72 to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-72",
+                "location": 2,
+                "mainWindowName": "MainWindow-14"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-70",
+            "params": {
+                "dockWidgetName": "DockWidget-70"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Hiding DockWidget-71",
+            "params": {
+                "dockWidgetName": "DockWidget-71"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-70-[hidden] onto DockWidget-72",
+            "params": {
+                "dockWidgetName": "DockWidget-72",
+                "dockWidgetToAddName": "DockWidget-70"
+            },
+            "type": 5
+        },
+        {
+            "comment": "Showing DockWidget-72-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-72"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Hiding DockWidget-72",
+            "params": {
+                "dockWidgetName": "DockWidget-72"
+            },
+            "type": 2
+        },
+        {
+            "comment": "SaveLayout",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "RestoreLayout",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "SaveLayout",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "Showing DockWidget-71-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-71"
+            },
+            "type": 3
+        },
+        {
+            "comment": "RestoreLayout",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "RestoreLayout",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "RestoreLayout",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "AddDockWidget DockWidget-70 to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-70",
+                "location": 1,
+                "mainWindowName": "MainWindow-14"
+            },
+            "type": 4
+        },
+        {
+            "comment": "SaveLayout",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "RestoreLayout",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "Showing DockWidget-72-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-72"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Closing DockWidget-72",
+            "params": {
+                "dockWidgetName": "DockWidget-72"
+            },
+            "type": 1
+        },
+        {
+            "comment": "SaveLayout",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "AddDockWidget DockWidget-70 to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-70",
+                "location": 3,
+                "mainWindowName": "MainWindow-14"
+            },
+            "type": 4
+        },
+        {
+            "comment": "RestoreLayout",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "RestoreLayout",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "AddDockWidget DockWidget-70 to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-70",
+                "location": 2,
+                "mainWindowName": "MainWindow-14"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-71-[hidden] to bottom, relative to DockWidget-70",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-71",
+                "location": 4,
+                "mainWindowName": "MainWindow-14",
+                "relativeToName": "DockWidget-70"
+            },
+            "type": 4
+        },
+        {
+            "comment": "SaveLayout",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "AddDockWidget DockWidget-72-[hidden] to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-72",
+                "location": 3,
+                "mainWindowName": "MainWindow-14"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Hiding DockWidget-72",
+            "params": {
+                "dockWidgetName": "DockWidget-72"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidget DockWidget-72-[hidden] to right, relative to DockWidget-70",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-72",
+                "location": 3,
+                "mainWindowName": "MainWindow-14",
+                "relativeToName": "DockWidget-70"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-71",
+            "params": {
+                "dockWidgetName": "DockWidget-71"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Showing DockWidget-71-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-71"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Hiding DockWidget-71",
+            "params": {
+                "dockWidgetName": "DockWidget-71"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidget DockWidget-70 to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-70",
+                "location": 1,
+                "mainWindowName": "MainWindow-14"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-70",
+            "params": {
+                "dockWidgetName": "DockWidget-70"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Hiding DockWidget-72",
+            "params": {
+                "dockWidgetName": "DockWidget-72"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Showing DockWidget-70-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-70"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidget DockWidget-72-[hidden] to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-72",
+                "location": 2,
+                "mainWindowName": "MainWindow-14"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-71-[hidden] onto DockWidget-70",
+            "params": {
+                "dockWidgetName": "DockWidget-70",
+                "dockWidgetToAddName": "DockWidget-71"
+            },
+            "type": 5
+        },
+        {
+            "comment": "Showing DockWidget-70-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-70"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidget DockWidget-70 to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-70",
+                "location": 2,
+                "mainWindowName": "MainWindow-14"
+            },
+            "type": 4
+        },
+        {
+            "comment": "RestoreLayout",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "SaveLayout",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "AddDockWidget DockWidget-70 to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-70",
+                "location": 4,
+                "mainWindowName": "MainWindow-14"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Showing DockWidget-72-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-72"
+            },
+            "type": 3
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        }
+    ]
+}

tests/fuzzer/testcases/21.json

@@ -0,0 +1,645 @@
+{
+    "initialLayout": {
+        "dockWidgets": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 807,
+                        "width": 1022
+                    },
+                    "x": 481,
+                    "y": 53
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 242,
+                    "width": 459
+                },
+                "name": "DockWidget-1"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 991,
+                        "width": 1097
+                    },
+                    "x": 500,
+                    "y": 373
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 537,
+                    "width": 519
+                },
+                "name": "DockWidget-2"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 550,
+                        "width": 856
+                    },
+                    "x": 286,
+                    "y": 486
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 319,
+                    "width": 536
+                },
+                "name": "DockWidget-3"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 565,
+                        "width": 840
+                    },
+                    "x": 55,
+                    "y": 69
+                },
+                "isFloating": false,
+                "isVisible": false,
+                "minSize": {
+                    "height": 179,
+                    "width": 312
+                },
+                "name": "DockWidget-4"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 707,
+                        "width": 1045
+                    },
+                    "x": 195,
+                    "y": 183
+                },
+                "isFloating": false,
+                "isVisible": false,
+                "minSize": {
+                    "height": 539,
+                    "width": 589
+                },
+                "name": "DockWidget-5"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 555,
+                        "width": 987
+                    },
+                    "x": 406,
+                    "y": 351
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 375,
+                    "width": 594
+                },
+                "name": "DockWidget-6"
+            }
+        ],
+        "mainWindows": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 895,
+                        "width": 126
+                    },
+                    "x": 320,
+                    "y": 109
+                },
+                "mainWindowOption": 0,
+                "name": "MainWindow-1"
+            }
+        ]
+    },
+    "operations": [
+        {
+            "comment": "RestoreLayout",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-2 onto DockWidget-6",
+            "params": {
+                "dockWidgetName": "DockWidget-6",
+                "dockWidgetToAddName": "DockWidget-2"
+            },
+            "type": 5
+        },
+        {
+            "comment": "Showing DockWidget-6-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-6"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Hiding DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidget DockWidget-5-[hidden] to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-5",
+                "location": 3,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "SaveLayout",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "Showing DockWidget-2-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-4-[hidden] onto DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3",
+                "dockWidgetToAddName": "DockWidget-4"
+            },
+            "type": 5
+        },
+        {
+            "comment": "Hiding DockWidget-6",
+            "params": {
+                "dockWidgetName": "DockWidget-6"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidget DockWidget-6-[hidden] to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-6",
+                "location": 4,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-4 to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-4",
+                "location": 3,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-6 onto DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2",
+                "dockWidgetToAddName": "DockWidget-6"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-6 onto DockWidget-5",
+            "params": {
+                "dockWidgetName": "DockWidget-5",
+                "dockWidgetToAddName": "DockWidget-6"
+            },
+            "type": 5
+        },
+        {
+            "comment": "SaveLayout",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "Closing DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Closing DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Closing DockWidget-4",
+            "params": {
+                "dockWidgetName": "DockWidget-4"
+            },
+            "type": 1
+        },
+        {
+            "comment": "RestoreLayout",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "Closing DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-1-[hidden] onto DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2",
+                "dockWidgetToAddName": "DockWidget-1"
+            },
+            "type": 5
+        },
+        {
+            "comment": "Closing DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Showing DockWidget-1-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-1"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Showing DockWidget-5-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-5"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-3 onto DockWidget-4",
+            "params": {
+                "dockWidgetName": "DockWidget-4",
+                "dockWidgetToAddName": "DockWidget-3"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidget DockWidget-3 to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-3",
+                "location": 4,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-6",
+            "params": {
+                "dockWidgetName": "DockWidget-6"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidget DockWidget-5 to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-5",
+                "location": 4,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-6-[hidden] to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-6",
+                "location": 4,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-6 to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-6",
+                "location": 3,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-4 to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-4",
+                "location": 3,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "RestoreLayout",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "SaveLayout",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "SaveLayout",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-2 onto DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1",
+                "dockWidgetToAddName": "DockWidget-2"
+            },
+            "type": 5
+        },
+        {
+            "comment": "SaveLayout",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "Closing DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 1
+        },
+        {
+            "comment": "RestoreLayout",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
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+            "params": {
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+            "type": 7
+        },
+        {
+            "comment": "",
+            "params": {
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+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "",
+            "params": {
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+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
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+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
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+            "type": 7
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+        {
+            "comment": "",
+            "params": {
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+            "type": 7
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+            "comment": "",
+            "params": {
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+            "comment": "",
+            "params": {
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+        {
+            "comment": "",
+            "params": {
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+            "type": 6
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+        {
+            "comment": "",
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+        {
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+            "params": {
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+            "comment": "",
+            "params": {
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+            "type": 6
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+        {
+            "comment": "",
+            "params": {
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+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 7
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 6
+        },
+        {
+            "comment": "",
+            "params": {
+            },
+            "type": 7
+        }
+    ]
+}

tests/fuzzer/testcases/3.json

@@ -0,0 +1,142 @@
+{
+    "initialLayout": {
+        "dockWidgets": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 903,
+                        "width": 596
+                    },
+                    "x": 212,
+                    "y": 195
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 579,
+                    "width": 519
+                },
+                "name": "DockWidget-1"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 696,
+                        "width": 530
+                    },
+                    "x": 103,
+                    "y": 264
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 497,
+                    "width": 213
+                },
+                "name": "DockWidget-2"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 745,
+                        "width": 732
+                    },
+                    "x": 403,
+                    "y": 397
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 388,
+                    "width": 322
+                },
+                "name": "DockWidget-3"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 609,
+                        "width": 734
+                    },
+                    "x": 311,
+                    "y": 337
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 201,
+                    "width": 436
+                },
+                "name": "DockWidget-4"
+            }
+        ],
+        "mainWindows": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 723,
+                        "width": 297
+                    },
+                    "x": 179,
+                    "y": 93
+                },
+                "mainWindowOption": 0,
+                "name": "MainWindow-1"
+            }
+        ]
+    },
+    "operations": [
+        {
+            "comment": "AddDockWidget DockWidget-1 to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-1",
+                "location": 1,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-2 onto DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1",
+                "dockWidgetToAddName": "DockWidget-2"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidget DockWidget-1-[hidden] to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-1",
+                "location": 1,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-4 onto DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2",
+                "dockWidgetToAddName": "DockWidget-4"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-3 onto DockWidget-4",
+            "params": {
+                "dockWidgetName": "DockWidget-4",
+                "dockWidgetToAddName": "DockWidget-3"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-1 onto DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3",
+                "dockWidgetToAddName": "DockWidget-1"
+            },
+            "type": 5
+        }
+    ]
+}

tests/fuzzer/testcases/4.json

@@ -0,0 +1,135 @@
+{
+    "initialLayout": {
+        "dockWidgets": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 886,
+                        "width": 305
+                    },
+                    "x": 265,
+                    "y": 179
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 583,
+                    "width": 160
+                },
+                "name": "DockWidget-1"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 1004,
+                        "width": 744
+                    },
+                    "x": 119,
+                    "y": 271
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 507,
+                    "width": 378
+                },
+                "name": "DockWidget-2"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 735,
+                        "width": 530
+                    },
+                    "x": 107,
+                    "y": 112
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 351,
+                    "width": 480
+                },
+                "name": "DockWidget-3"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 493,
+                        "width": 515
+                    },
+                    "x": 126,
+                    "y": 80
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 197,
+                    "width": 437
+                },
+                "name": "DockWidget-4"
+            }
+        ],
+        "mainWindows": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 1050,
+                        "width": 462
+                    },
+                    "x": 130,
+                    "y": 421
+                },
+                "mainWindowOption": 0,
+                "name": "MainWindow-1"
+            }
+        ]
+    },
+    "operations": [
+        {
+            "comment": "AddDockWidget DockWidget-3 to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-3",
+                "location": 4,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Hiding DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 2
+        },
+        {
+            "comment": "AddDockWidget DockWidget-1 to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-1",
+                "location": 3,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-4 to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-4",
+                "location": 4,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-2 onto DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1",
+                "dockWidgetToAddName": "DockWidget-2"
+            },
+            "type": 5
+        }
+    ]
+}

tests/fuzzer/testcases/5.json

@@ -0,0 +1,76 @@
+{
+    "initialLayout": {
+        "dockWidgets": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 818,
+                        "width": 425
+                    },
+                    "x": 146,
+                    "y": 436
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 425,
+                    "width": 259
+                },
+                "name": "DockWidget-1"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 698,
+                        "width": 614
+                    },
+                    "x": 438,
+                    "y": 291
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 410,
+                    "width": 363
+                },
+                "name": "DockWidget-2"
+            }
+        ],
+        "mainWindows": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 1400,
+                        "width": 457
+                    },
+                    "x": 91,
+                    "y": 388
+                },
+                "mainWindowOption": 0,
+                "name": "MainWindow-1"
+            }
+        ]
+    },
+    "operations": [
+        {
+            "comment": "AddDockWidget DockWidget-2 to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 2,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-1 to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-1",
+                "location": 2,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        }
+    ]
+}

tests/fuzzer/testcases/6.json

@@ -0,0 +1,122 @@
+{
+    "initialLayout": {
+        "dockWidgets": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 1053,
+                        "width": 1025
+                    },
+                    "x": 66,
+                    "y": 252
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 503,
+                    "width": 490
+                },
+                "name": "DockWidget-1"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 912,
+                        "width": 835
+                    },
+                    "x": 94,
+                    "y": 437
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 506,
+                    "width": 532
+                },
+                "name": "DockWidget-2"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 774,
+                        "width": 925
+                    },
+                    "x": 222,
+                    "y": 299
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 596,
+                    "width": 418
+                },
+                "name": "DockWidget-3"
+            }
+        ],
+        "mainWindows": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 1054,
+                        "width": 171
+                    },
+                    "x": 321,
+                    "y": 131
+                },
+                "mainWindowOption": 0,
+                "name": "MainWindow-1"
+            }
+        ]
+    },
+    "operations": [
+        {
+            "comment": "AddDockWidget DockWidget-1 to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-1",
+                "location": 2,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-3 to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-3",
+                "location": 1,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Hiding DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Hiding DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 2
+        },
+        {
+            "comment": "Showing DockWidget-1-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-1"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-2 onto DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1",
+                "dockWidgetToAddName": "DockWidget-2"
+            },
+            "type": 5
+        }
+    ]
+}

tests/fuzzer/testcases/7.json

@@ -0,0 +1,245 @@
+{
+    "initialLayout": {
+        "dockWidgets": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 428,
+                        "width": 800
+                    },
+                    "x": 212,
+                    "y": 102
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 361,
+                    "width": 599
+                },
+                "name": "DockWidget-1"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 744,
+                        "width": 568
+                    },
+                    "x": 437,
+                    "y": 127
+                },
+                "isFloating": true,
+                "isVisible": false,
+                "minSize": {
+                    "height": 422,
+                    "width": 261
+                },
+                "name": "DockWidget-2"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 1055,
+                        "width": 768
+                    },
+                    "x": 452,
+                    "y": 224
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 512,
+                    "width": 386
+                },
+                "name": "DockWidget-3"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 647,
+                        "width": 677
+                    },
+                    "x": 458,
+                    "y": 188
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 358,
+                    "width": 224
+                },
+                "name": "DockWidget-4"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 333,
+                        "width": 739
+                    },
+                    "x": 408,
+                    "y": 100
+                },
+                "isFloating": false,
+                "isVisible": false,
+                "minSize": {
+                    "height": 252,
+                    "width": 267
+                },
+                "name": "DockWidget-5"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 1042,
+                        "width": 468
+                    },
+                    "x": 343,
+                    "y": 320
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 526,
+                    "width": 234
+                },
+                "name": "DockWidget-6"
+            }
+        ],
+        "mainWindows": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 1039,
+                        "width": 94
+                    },
+                    "x": 364,
+                    "y": 197
+                },
+                "mainWindowOption": 0,
+                "name": "MainWindow-1"
+            }
+        ]
+    },
+    "operations": [
+        {
+            "comment": "Closing DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Closing DockWidget-6",
+            "params": {
+                "dockWidgetName": "DockWidget-6"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidget DockWidget-4 to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-4",
+                "location": 4,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-2-[hidden] to bottom",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 4,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-2 to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 2,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Closing DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Closing DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 1
+        },
+        {
+            "comment": "Showing DockWidget-2-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Showing DockWidget-3-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-3"
+            },
+            "type": 3
+        },
+        {
+            "comment": "Showing DockWidget-1-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-1"
+            },
+            "type": 3
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-4 onto DockWidget-1",
+            "params": {
+                "dockWidgetName": "DockWidget-1",
+                "dockWidgetToAddName": "DockWidget-4"
+            },
+            "type": 5
+        },
+        {
+            "comment": "Closing DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 1
+        },
+        {
+            "comment": "AddDockWidget DockWidget-3 to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-3",
+                "location": 3,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-1-[hidden] to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-1",
+                "location": 1,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "Showing DockWidget-2-[hidden]",
+            "params": {
+                "dockWidgetName": "DockWidget-2"
+            },
+            "type": 3
+        }
+    ]
+}

tests/fuzzer/testcases/8.json

@@ -0,0 +1,205 @@
+{
+    "initialLayout": {
+        "dockWidgets": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 292,
+                        "width": 1062
+                    },
+                    "x": 163,
+                    "y": 468
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 183,
+                    "width": 485
+                },
+                "name": "DockWidget-1"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 858,
+                        "width": 559
+                    },
+                    "x": 39,
+                    "y": 491
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 584,
+                    "width": 388
+                },
+                "name": "DockWidget-2"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 625,
+                        "width": 693
+                    },
+                    "x": 390,
+                    "y": 121
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 460,
+                    "width": 386
+                },
+                "name": "DockWidget-3"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 684,
+                        "width": 740
+                    },
+                    "x": 243,
+                    "y": 117
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 332,
+                    "width": 414
+                },
+                "name": "DockWidget-5"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 690,
+                        "width": 676
+                    },
+                    "x": 288,
+                    "y": 108
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 494,
+                    "width": 506
+                },
+                "name": "DockWidget-6"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 1011,
+                        "width": 412
+                    },
+                    "x": 136,
+                    "y": 197
+                },
+                "isFloating": true,
+                "isVisible": true,
+                "minSize": {
+                    "height": 590,
+                    "width": 209
+                },
+                "name": "DockWidget-8"
+            },
+            {
+                "geometry": {
+                    "size": {
+                        "height": 792,
+                        "width": 754
+                    },
+                    "x": 64,
+                    "y": 69
+                },
+                "isFloating": false,
+                "isVisible": true,
+                "minSize": {
+                    "height": 560,
+                    "width": 534
+                },
+                "name": "DockWidget-9"
+            }
+        ],
+        "mainWindows": [
+            {
+                "geometry": {
+                    "size": {
+                        "height": 1346,
+                        "width": 219
+                    },
+                    "x": 209,
+                    "y": 85
+                },
+                "mainWindowOption": 0,
+                "name": "MainWindow-1"
+            }
+        ]
+    },
+    "operations": [
+        {
+            "comment": "AddDockWidget DockWidget-8 to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-8",
+                "location": 1,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-8 onto DockWidget-9",
+            "params": {
+                "dockWidgetName": "DockWidget-9",
+                "dockWidgetToAddName": "DockWidget-8"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidget DockWidget-2 to left",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-2",
+                "location": 1,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-1 to top",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-1",
+                "location": 2,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidget DockWidget-6 to right",
+            "params": {
+                "addingOption": 0,
+                "dockWidgetName": "DockWidget-6",
+                "location": 3,
+                "mainWindowName": "MainWindow-1"
+            },
+            "type": 4
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-5 onto DockWidget-3",
+            "params": {
+                "dockWidgetName": "DockWidget-3",
+                "dockWidgetToAddName": "DockWidget-5"
+            },
+            "type": 5
+        },
+        {
+            "comment": "AddDockWidgetAsTab DockWidget-9-[hidden] onto DockWidget-2",
+            "params": {
+                "dockWidgetName": "DockWidget-2",
+                "dockWidgetToAddName": "DockWidget-9"
+            },
+            "type": 5
+        }
+    ]
+}

tests/layouts/1.6layoutWithoutFloatingWindowFlags.json

@@ -1,133 +0,0 @@
-{
-    "allDockWidgets": [
-        {
-            "lastPosition": {
-                "lastFloatingGeometry": {
-                    "height": 0,
-                    "width": 0,
-                    "x": 0,
-                    "y": 0
-                },
-                "placeholders": [
-                    {
-                        "indexOfFloatingWindow": 0,
-                        "isFloatingWindow": true,
-                        "itemIndex": 0
-                    }
-                ],
-                "tabIndex": -1,
-                "wasFloating": false
-            },
-            "uniqueName": "1"
-        }
-    ],
-    "closedDockWidgets": [
-    ],
-    "floatingWindows": [
-        {
-            "geometry": {
-                "height": 129,
-                "width": 400,
-                "x": 0,
-                "y": 0
-            },
-            "isVisible": true,
-            "multiSplitterLayout": {
-                "frames": {
-                    "1": {
-                        "currentTabIndex": 0,
-                        "dockWidgets": [
-                            "1"
-                        ],
-                        "geometry": {
-                            "height": 90,
-                            "width": 392,
-                            "x": 0,
-                            "y": 0
-                        },
-                        "id": "1",
-                        "isNull": false,
-                        "mainWindowUniqueName": "",
-                        "objectName": "1",
-                        "options": 0
-                    }
-                },
-                "layout": {
-                    "children": [
-                        {
-                            "guestId": "1",
-                            "isContainer": false,
-                            "isVisible": true,
-                            "objectName": "1",
-                            "sizingInfo": {
-                                "geometry": {
-                                    "height": 90,
-                                    "width": 392,
-                                    "x": 0,
-                                    "y": 0
-                                },
-                                "maxSize": {
-                                    "height": 90,
-                                    "width": 524291
-                                },
-                                "minSize": {
-                                    "height": 90,
-                                    "width": 84
-                                }
-                            }
-                        }
-                    ],
-                    "isContainer": true,
-                    "isVisible": false,
-                    "objectName": "",
-                    "orientation": 2,
-                    "sizingInfo": {
-                        "geometry": {
-                            "height": 90,
-                            "width": 392,
-                            "x": 0,
-                            "y": 0
-                        },
-                        "maxSize": {
-                            "height": 16777215,
-                            "width": 16777215
-                        },
-                        "minSize": {
-                            "height": 90,
-                            "width": 80
-                        }
-                    }
-                }
-            },
-            "normalGeometry": {
-                "height": 129,
-                "width": 400,
-                "x": 0,
-                "y": 0
-            },
-            "parentIndex": -1,
-            "screenIndex": 0,
-            "screenSize": {
-                "height": 600,
-                "width": 800
-            },
-            "windowState": 0
-        }
-    ],
-    "mainWindows": [
-    ],
-    "screenInfo": [
-        {
-            "devicePixelRatio": 1,
-            "geometry": {
-                "height": 600,
-                "width": 800,
-                "x": 0,
-                "y": 0
-            },
-            "index": 0,
-            "name": ""
-        }
-    ],
-    "serializationVersion": 3
-}

tests/test_resources.qrc

@@ -6,7 +6,6 @@
         <file>layouts/stuck-separator.json</file>
         <file>layouts/layoutEquallyCrash.json</file>
         <file>layouts/restoreWithIncompleteFactory.json</file>
-        <file>layouts/1.6layoutWithoutFloatingWindowFlags.json</file>
         <file>main.qml</file>
         <file>main2.qml</file>
     </qresource>

tests/tst_docks.cpp

@@ -5078,13 +5078,6 @@ void TestDocks::tst_mdi_mixed_with_docking()
     mdiArea->addDockWidget(mdiWidget1, QPoint(10, 10));
     mdiArea->addDockWidget(mdiWidget2, QPoint(50, 50));
 
-
-    // We don't support LayoutSaver with mdi yet, but it shouldn't crash
-    // so test it as well
-    LayoutSaver saver;
-
-    saver.serializeLayout();
-
     Frame *frameMDI1 = mdiWidget1->d->frame();
     Frame *frame1 = dock1->d->frame();
     QVERIFY(!frame1->isMDI());
@@ -7804,11 +7797,6 @@ void TestDocks::tst_addMDIDockWidget()
     auto m = createMainWindow(QSize(800, 500), MainWindowOption_MDI);
     auto dock0 = createDockWidget("dock0", new MyWidget2(QSize(400, 400)));
     qobject_cast<MDILayoutWidget *>(m->layoutWidget())->addDockWidget(dock0, QPoint(0, 0), {});
-
-    // MDI doesn't support LayoutSaver yet, but it was crashing, so add a test
-    // to catch further crashes
-    LayoutSaver saver;
-    const QByteArray saved = saver.serializeLayout();
 }
 
 void TestDocks::tst_redockToMDIRestoresPosition()
@@ -7998,19 +7986,3 @@ void TestDocks::tst_crash326()
     QEXPECT_FAIL("", "Bug #326, to be fixed", Continue);
     QVERIFY(originalFrame != dock1->d->frame());
 }
-
-void TestDocks::tst_restoreFlagsFromVersion16()
-{
-    EnsureTopLevelsDeleted e;
-    KDDockWidgets::Config::self().setFlags(KDDockWidgets::Config::Flag_HideTitleBarWhenTabsVisible);
-
-    // Save a layout with a floating window:
-    auto dock1 = createDockWidget("1", new QPushButton("1"));
-
-    LayoutSaver saver;
-    saver.restoreFromFile(":/layouts/1.6layoutWithoutFloatingWindowFlags.json");
-
-    auto floatingWindow = dock1->floatingWindow();
-    QVERIFY(floatingWindow);
-    QCOMPARE(floatingWindow->floatingWindowFlags(), FloatingWindowFlag::HideTitleBarWhenTabsVisible);
-}

tests/tst_docks.h

@@ -248,7 +248,6 @@ private Q_SLOTS:
     void tst_persistentCentralWidget();
     void tst_setFloatingWindowFlags();
     void tst_crash326();
-    void tst_restoreFlagsFromVersion16();
 
 #ifdef KDDOCKWIDGETS_QTWIDGETS
     // TODO: Port these to QtQuick

vscode.code-workspace

@@ -1,27 +0,0 @@
-{
-  "folders": [
-    {
-      "path": "."
-    }
-  ],
-  "settings": {
-    "files.trimTrailingWhitespace": true,
-    "editor.formatOnType": true,
-    "cmake.copyCompileCommands": "${workspaceFolder}/compile_commands.json"
-  },
-  "launch": {
-    "version": "0.2.0",
-    "configurations": [
-      {
-        "name": "Current Target (LLDB)",
-        "type": "lldb",
-        "request": "launch",
-        "program": "${command:cmake.launchTargetPath}",
-        "args": [
-          ""
-        ],
-        "cwd": "${command:cmake.buildDirectory}"
-      }
-    ]
-  }
-}