Renamed views_qtwidgets/ into qtwidgets/views/

As there will be some files that are specific to QtWidgets and
but aren't views

src/qtwidgets/views/MainWindow_qtwidgets.h

@@ -0,0 +1,96 @@
+/*
+  This file is part of KDDockWidgets.
+
+  SPDX-FileCopyrightText: 2019-2022 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.
+*/
+
+/**
+ * @file
+ * @brief QMainWindow sub-class to enable KDDockWidgets support.
+ *
+ * @author Sérgio Martins \<sergio.martins@kdab.com\>
+ */
+
+#ifndef KD_MAINWINDOW_H
+#define KD_MAINWINDOW_H
+
+#include "View_qtwidgets.h"
+#include "controllers/MainWindow.h"
+#include "views/MainWindow.h"
+
+#include <QMainWindow>
+
+namespace KDDockWidgets {
+
+namespace Controllers {
+class MainWindow;
+class SideBar;
+}
+
+namespace Views {
+
+/**
+ * @brief The QMainwindow sub-class that the application should use to be able
+ * to dock KDDockWidget::DockWidget instances.
+ */
+class DOCKS_EXPORT MainWindow_qtwidgets : public View_qtwidgets<QMainWindow>, public MainWindow
+{
+    Q_OBJECT
+public:
+    typedef QVector<MainWindow_qtwidgets *> List;
+
+    ///@brief Constructor. Use it as you would use QMainWindow.
+    ///@param uniqueName Mandatory name that should be unique between all MainWindow instances.
+    ///       This name won't be user visible and just used internally for the save/restore.
+    ///@param options optional MainWindowOptions to use
+    ///@param parent QObject *parent to pass to QMainWindow constructor.
+    ///@param flags Window flags to  pass to QMainWindow constructor.
+    explicit MainWindow_qtwidgets(Controllers::MainWindow *,
+                                  QWidget *parent = nullptr,
+                                  Qt::WindowFlags flags = Qt::WindowFlags());
+
+
+    explicit MainWindow_qtwidgets(const QString &uniqueName,
+                                  MainWindowOptions options = {},
+                                  QWidget *parent = nullptr,
+                                  Qt::WindowFlags flags = Qt::WindowFlags());
+
+    ///@brief Destructor
+    ~MainWindow_qtwidgets() override;
+
+    ///@brief returns the sidebar for the specified location
+    Controllers::SideBar *sideBar(SideBarLocation) const override;
+
+    //@brief returns the margins for the contents widget
+    QMargins centerWidgetMargins() const override;
+
+    //@brief sets the margins for the contents widgets
+    void setCenterWidgetMargins(const QMargins &margins);
+
+    /// @brief Returns the main window controller
+    Controllers::MainWindow *mainWindow() const;
+
+    void setContentsMargins(int left, int top, int right, int bottom) override;
+
+    void init() override;
+
+protected:
+    void resizeEvent(QResizeEvent *) override;
+    QRect centralAreaGeometry() const override;
+
+private:
+    friend class Controllers::MainWindow;
+    using QMainWindow::setCentralWidget;
+    void setCentralWidget(QWidget *); // overridden just to make it private
+    class Private;
+    Private *const d;
+};
+}
+}
+
+#endif