Files
KDDockWidgets/src/qtwidgets/views/ClassicIndicatorsWindow_qtwidgets.cpp
2022-08-05 16:49:00 +01:00

323 lines
10 KiB
C++

/*
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.
*/
#include "ClassicIndicatorsWindow_qtwidgets.h"
#include "kddockwidgets/controllers/indicators/ClassicIndicators.h"
#include "kddockwidgets/controllers/Group.h"
#include "View_qtwidgets.h"
#include "private/Utils_p.h"
using namespace KDDockWidgets;
using namespace KDDockWidgets::Controllers;
namespace KDDockWidgets {
class Indicator : public QWidget
{
Q_OBJECT
public:
typedef QList<Indicator *> List;
explicit Indicator(Controllers::ClassicIndicators *classicIndicators,
IndicatorWindow_qtwidgets *parent, DropLocation location);
void paintEvent(QPaintEvent *) override;
void setHovered(bool hovered);
QString iconName(bool active) const;
QString iconFileName(bool active) const;
QImage m_image;
QImage m_imageActive;
Controllers::ClassicIndicators *const q;
bool m_hovered = false;
const DropLocation m_dropLocation;
};
static QString iconName(DropLocation loc, bool active)
{
QString suffix = active ? QStringLiteral("_active") : QString();
QString name;
switch (loc) {
case DropLocation_Center:
name = QStringLiteral("center");
break;
case DropLocation_Left:
name = QStringLiteral("inner_left");
break;
case DropLocation_Right:
name = QStringLiteral("inner_right");
break;
case DropLocation_Bottom:
name = QStringLiteral("inner_bottom");
break;
case DropLocation_Top:
name = QStringLiteral("inner_top");
break;
case DropLocation_OutterLeft:
name = QStringLiteral("outter_left");
break;
case DropLocation_OutterBottom:
name = QStringLiteral("outter_bottom");
break;
case DropLocation_OutterRight:
name = QStringLiteral("outter_right");
break;
case DropLocation_OutterTop:
name = QStringLiteral("outter_top");
break;
case DropLocation_None:
case DropLocation_Inner:
case DropLocation_Outter:
case DropLocation_Horizontal:
case DropLocation_Vertical:
return QString();
}
return name + suffix;
}
}
#include <QPainter>
#define INDICATOR_WIDTH 40
#define OUTTER_INDICATOR_MARGIN 10
void Indicator::paintEvent(QPaintEvent *)
{
QPainter p(this);
if (m_hovered)
p.drawImage(rect(), m_imageActive, rect());
else
p.drawImage(rect(), m_image, rect());
}
void Indicator::setHovered(bool hovered)
{
if (hovered != m_hovered) {
m_hovered = hovered;
update();
if (hovered) {
q->setDropLocation(m_dropLocation);
} else if (q->currentDropLocation() == m_dropLocation) {
q->setDropLocation(DropLocation_None);
}
}
}
QString Indicator::iconName(bool active) const
{
return KDDockWidgets::iconName(m_dropLocation, active);
}
QString Indicator::iconFileName(bool active) const
{
const QString name = iconName(active);
return KDDockWidgets::windowManagerHasTranslucency()
? QStringLiteral(":/img/classic_indicators/%1.png").arg(name)
: QStringLiteral(":/img/classic_indicators/opaque/%1.png").arg(name);
}
static QWidget *parentForIndicatorWindow(ClassicIndicators *classicIndicators_)
{
// On Wayland it can't be a top-level, as we have no way of positioning it
return isWayland() ? Views::View_qt::asQWidget(classicIndicators_->view()) : nullptr;
}
static Qt::WindowFlags flagsForIndicatorWindow()
{
return isWayland() ? Qt::Widget : (Qt::Tool | Qt::BypassWindowManagerHint);
}
IndicatorWindow_qtwidgets::IndicatorWindow_qtwidgets(ClassicIndicators *classicIndicators_)
: QWidget(parentForIndicatorWindow(classicIndicators_), flagsForIndicatorWindow())
, classicIndicators(classicIndicators_)
, m_center(new Indicator(classicIndicators, this,
DropLocation_Center)) // Each indicator is not a top-level. Otherwise
// there's noticeable delay.
, m_left(new Indicator(classicIndicators, this, DropLocation_Left))
, m_right(new Indicator(classicIndicators, this, DropLocation_Right))
, m_bottom(new Indicator(classicIndicators, this, DropLocation_Bottom))
, m_top(new Indicator(classicIndicators, this, DropLocation_Top))
, m_outterLeft(new Indicator(classicIndicators, this, DropLocation_OutterLeft))
, m_outterRight(new Indicator(classicIndicators, this, DropLocation_OutterRight))
, m_outterBottom(new Indicator(classicIndicators, this, DropLocation_OutterBottom))
, m_outterTop(new Indicator(classicIndicators, this, DropLocation_OutterTop))
{
setWindowFlag(Qt::FramelessWindowHint, true);
if (Config::self().flags() & Config::Flag_KeepAboveIfNotUtilityWindow) {
// Ensure the overlay window is on top
setWindowFlag(Qt::WindowStaysOnTopHint, true);
}
setAttribute(Qt::WA_TranslucentBackground);
connect(classicIndicators, &ClassicIndicators::indicatorsVisibleChanged, this,
&IndicatorWindow_qtwidgets::updateIndicatorVisibility);
connect(classicIndicators, &ClassicIndicators::indicatorsVisibleChanged, this,
&IndicatorWindow_qtwidgets::updateIndicatorVisibility);
m_indicators << m_center << m_left << m_right << m_top << m_bottom << m_outterBottom
<< m_outterTop << m_outterLeft << m_outterRight;
}
Indicator *IndicatorWindow_qtwidgets::indicatorForLocation(DropLocation loc) const
{
switch (loc) {
case DropLocation_Center:
return m_center;
case DropLocation_Left:
return m_left;
case DropLocation_Right:
return m_right;
case DropLocation_Bottom:
return m_bottom;
case DropLocation_Top:
return m_top;
case DropLocation_OutterLeft:
return m_outterLeft;
case DropLocation_OutterBottom:
return m_outterBottom;
case DropLocation_OutterRight:
return m_outterRight;
case DropLocation_OutterTop:
return m_outterTop;
case DropLocation_None:
case DropLocation_Outter:
case DropLocation_Inner:
case DropLocation_Horizontal:
case DropLocation_Vertical:
return nullptr;
}
return nullptr;
}
void IndicatorWindow_qtwidgets::updateMask()
{
QRegion region;
if (!KDDockWidgets::windowManagerHasTranslucency()) {
for (Indicator *indicator : qAsConst(m_indicators)) {
if (indicator->isVisible())
region = region.united(QRegion(indicator->geometry(), QRegion::Rectangle));
}
}
setMask(region);
}
void IndicatorWindow_qtwidgets::resizeEvent(QResizeEvent *ev)
{
QWidget::resizeEvent(ev);
updatePositions();
}
void IndicatorWindow_qtwidgets::updateIndicatorVisibility()
{
for (Indicator *indicator : { m_left, m_right, m_bottom, m_top, m_outterTop, m_outterLeft,
m_outterRight, m_outterBottom, m_center })
indicator->setVisible(classicIndicators->dropIndicatorVisible(indicator->m_dropLocation));
updateMask();
}
QPoint IndicatorWindow_qtwidgets::posForIndicator(DropLocation loc) const
{
Indicator *indicator = indicatorForLocation(loc);
return indicator->mapToGlobal(indicator->rect().center());
}
DropLocation IndicatorWindow_qtwidgets::hover(QPoint globalPos)
{
DropLocation loc = DropLocation_None;
for (Indicator *indicator : qAsConst(m_indicators)) {
if (indicator->isVisible()) {
const bool hovered = indicator->rect().contains(indicator->mapFromGlobal(globalPos));
indicator->setHovered(hovered);
if (hovered)
loc = indicator->m_dropLocation;
}
}
return loc;
}
void IndicatorWindow_qtwidgets::updatePositions()
{
QRect r = rect();
const int indicatorWidth = m_outterBottom->width();
const int halfIndicatorWidth = m_outterBottom->width() / 2;
m_outterLeft->move(r.x() + OUTTER_INDICATOR_MARGIN, r.center().y() - halfIndicatorWidth);
m_outterBottom->move(r.center().x() - halfIndicatorWidth,
r.y() + height() - indicatorWidth - OUTTER_INDICATOR_MARGIN);
m_outterTop->move(r.center().x() - halfIndicatorWidth, r.y() + OUTTER_INDICATOR_MARGIN);
m_outterRight->move(r.x() + width() - indicatorWidth - OUTTER_INDICATOR_MARGIN,
r.center().y() - halfIndicatorWidth);
Controllers::Group *hoveredFrame = classicIndicators->hoveredFrame();
if (hoveredFrame) {
QRect hoveredRect = hoveredFrame->view()->geometry();
m_center->move(r.topLeft() + hoveredRect.center()
- QPoint(halfIndicatorWidth, halfIndicatorWidth));
m_top->move(m_center->pos() - QPoint(0, indicatorWidth + OUTTER_INDICATOR_MARGIN));
m_right->move(m_center->pos() + QPoint(indicatorWidth + OUTTER_INDICATOR_MARGIN, 0));
m_bottom->move(m_center->pos() + QPoint(0, indicatorWidth + OUTTER_INDICATOR_MARGIN));
m_left->move(m_center->pos() - QPoint(indicatorWidth + OUTTER_INDICATOR_MARGIN, 0));
}
}
void IndicatorWindow_qtwidgets::raise()
{
QWidget::raise();
}
void IndicatorWindow_qtwidgets::setGeometry(QRect rect)
{
QWidget::setGeometry(rect);
}
void IndicatorWindow_qtwidgets::setObjectName(const QString &name)
{
QWidget::setObjectName(name);
}
void IndicatorWindow_qtwidgets::setVisible(bool is)
{
QWidget::setVisible(is);
}
void IndicatorWindow_qtwidgets::resize(QSize size)
{
QWidget::resize(size);
}
bool IndicatorWindow_qtwidgets::isWindow() const
{
return QWidget::isWindow();
}
Indicator::Indicator(ClassicIndicators *classicIndicators, IndicatorWindow_qtwidgets *parent,
DropLocation location)
: QWidget(parent)
, q(classicIndicators)
, m_dropLocation(location)
{
m_image = QImage(iconFileName(/*active=*/false)).scaled(INDICATOR_WIDTH, INDICATOR_WIDTH);
m_imageActive = QImage(iconFileName(/*active=*/true)).scaled(INDICATOR_WIDTH, INDICATOR_WIDTH);
setFixedSize(m_image.size());
setVisible(true);
}
#include "ClassicIndicatorsWindow_qtwidgets.moc"