2011-04-27 10:05:43 +00:00
|
|
|
/****************************************************************************
|
|
|
|
**
|
2016-01-15 12:36:27 +00:00
|
|
|
** Copyright (C) 2016 The Qt Company Ltd.
|
|
|
|
** Contact: https://www.qt.io/licensing/
|
2011-04-27 10:05:43 +00:00
|
|
|
**
|
|
|
|
** This file is part of the test suite of the Qt Toolkit.
|
|
|
|
**
|
2016-01-15 12:36:27 +00:00
|
|
|
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
|
2012-09-19 12:28:29 +00:00
|
|
|
** Commercial License Usage
|
|
|
|
** Licensees holding valid commercial Qt licenses may use this file in
|
|
|
|
** accordance with the commercial license agreement provided with the
|
|
|
|
** Software or, alternatively, in accordance with the terms contained in
|
2015-01-28 08:44:43 +00:00
|
|
|
** a written agreement between you and The Qt Company. For licensing terms
|
2016-01-15 12:36:27 +00:00
|
|
|
** and conditions see https://www.qt.io/terms-conditions. For further
|
|
|
|
** information use the contact form at https://www.qt.io/contact-us.
|
2012-09-19 12:28:29 +00:00
|
|
|
**
|
2016-01-15 12:36:27 +00:00
|
|
|
** GNU General Public License Usage
|
|
|
|
** Alternatively, this file may be used under the terms of the GNU
|
|
|
|
** General Public License version 3 as published by the Free Software
|
|
|
|
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
|
|
|
|
** included in the packaging of this file. Please review the following
|
|
|
|
** information to ensure the GNU General Public License requirements will
|
|
|
|
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
|
2011-04-27 10:05:43 +00:00
|
|
|
**
|
|
|
|
** $QT_END_LICENSE$
|
|
|
|
**
|
|
|
|
****************************************************************************/
|
|
|
|
|
2013-03-21 14:19:40 +00:00
|
|
|
#include <QGraphicsView>
|
|
|
|
#include <QGraphicsRectItem>
|
|
|
|
#include <QDesktopWidget>
|
|
|
|
#include <QApplication>
|
|
|
|
#include <QDebug>
|
2011-04-27 10:05:43 +00:00
|
|
|
|
|
|
|
class DesktopView : public QGraphicsView
|
|
|
|
{
|
|
|
|
Q_OBJECT
|
|
|
|
public:
|
|
|
|
DesktopView()
|
|
|
|
: that(0)
|
|
|
|
{
|
|
|
|
scene = new QGraphicsScene;
|
|
|
|
setScene(scene);
|
|
|
|
|
|
|
|
QDesktopWidget *desktop = QApplication::desktop();
|
|
|
|
connect(desktop, SIGNAL(resized(int)), this, SLOT(updateScene()));
|
|
|
|
connect(desktop, SIGNAL(resized(int)), this, SLOT(desktopResized(int)));
|
|
|
|
connect(desktop, SIGNAL(workAreaResized(int)), this, SLOT(updateScene()));
|
|
|
|
connect(desktop, SIGNAL(workAreaResized(int)), this, SLOT(desktopWorkAreaResized(int)));
|
|
|
|
connect(desktop, SIGNAL(screenCountChanged(int)), this, SLOT(updateScene()));
|
|
|
|
connect(desktop, SIGNAL(screenCountChanged(int)), this, SLOT(desktopScreenCountChanged(int)));
|
|
|
|
|
|
|
|
updateScene();
|
|
|
|
|
|
|
|
QTransform transform;
|
|
|
|
transform.scale(0.25, 0.25);
|
|
|
|
setTransform(transform);
|
|
|
|
|
|
|
|
setBackgroundBrush(Qt::darkGray);
|
|
|
|
desktopScreenCountChanged(-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
protected:
|
|
|
|
void moveEvent(QMoveEvent *e)
|
|
|
|
{
|
|
|
|
if (that) {
|
|
|
|
that->setRect(appRect());
|
|
|
|
scene->update();
|
|
|
|
}
|
|
|
|
QGraphicsView::moveEvent(e);
|
|
|
|
}
|
|
|
|
void resizeEvent(QResizeEvent *e)
|
|
|
|
{
|
|
|
|
if (that) {
|
|
|
|
that->setRect(appRect());
|
|
|
|
}
|
|
|
|
QGraphicsView::resizeEvent(e);
|
|
|
|
}
|
|
|
|
|
|
|
|
private slots:
|
|
|
|
void updateScene()
|
|
|
|
{
|
|
|
|
scene->clear();
|
|
|
|
|
|
|
|
const QDesktopWidget *desktop = QApplication::desktop();
|
|
|
|
const bool isVirtualDesktop = desktop->isVirtualDesktop();
|
|
|
|
const int homeScreen = desktop->screenNumber(this);
|
|
|
|
|
|
|
|
QRect sceneRect;
|
|
|
|
int screenCount = desktop->screenCount();
|
|
|
|
for (int s = 0; s < screenCount; ++s) {
|
|
|
|
const bool isPrimary = desktop->primaryScreen() == s;
|
|
|
|
const QRect screenRect = desktop->screenGeometry(s);
|
|
|
|
const QRect workRect = desktop->availableGeometry(s);
|
|
|
|
const QBrush fillBrush = palette().brush(isPrimary ? QPalette::Active : QPalette::Inactive, QPalette::Highlight);
|
|
|
|
QGraphicsRectItem *screen = new QGraphicsRectItem(0, 0, screenRect.width(), screenRect.height());
|
|
|
|
|
|
|
|
if (isVirtualDesktop) {
|
|
|
|
thatRoot = QPoint();
|
|
|
|
screen->setPos(screenRect.x(), screenRect.y());
|
|
|
|
} else {
|
|
|
|
// for non-virtual desktops we assume that screens are
|
|
|
|
// simply next to each other
|
|
|
|
if (s)
|
|
|
|
screen->setPos(sceneRect.right(), 0);
|
|
|
|
if (s == homeScreen)
|
|
|
|
thatRoot = screen->pos().toPoint();
|
|
|
|
}
|
|
|
|
|
|
|
|
screen->setBrush(fillBrush);
|
|
|
|
scene->addItem(screen);
|
|
|
|
sceneRect.setLeft(qMin(sceneRect.left(), screenRect.left()));
|
|
|
|
sceneRect.setRight(qMax(sceneRect.right(), screenRect.right()));
|
|
|
|
sceneRect.setTop(qMin(sceneRect.top(), screenRect.top()));
|
|
|
|
sceneRect.setBottom(qMax(sceneRect.bottom(), screenRect.bottom()));
|
|
|
|
|
|
|
|
QGraphicsRectItem *workArea = new QGraphicsRectItem(screen);
|
|
|
|
workArea->setRect(0, 0, workRect.width(), workRect.height());
|
|
|
|
workArea->setPos(workRect.x() - screenRect.x(), workRect.y() - screenRect.y());
|
|
|
|
workArea->setBrush(Qt::white);
|
|
|
|
|
|
|
|
QGraphicsSimpleTextItem *screenNumber = new QGraphicsSimpleTextItem(workArea);
|
|
|
|
screenNumber->setText(QString::number(s));
|
|
|
|
screenNumber->setPen(QPen(Qt::black, 1));
|
|
|
|
screenNumber->setBrush(fillBrush);
|
|
|
|
screenNumber->setFont(QFont("Arial Black", 18));
|
|
|
|
screenNumber->setTransform(QTransform().scale(10, 10));
|
|
|
|
screenNumber->setTransformOriginPoint(screenNumber->boundingRect().center());
|
|
|
|
QSizeF center = (workRect.size() - screenNumber->boundingRect().size()) / 2;
|
|
|
|
screenNumber->setPos(center.width(), center.height());
|
|
|
|
|
|
|
|
screen->show();
|
|
|
|
screen->setZValue(1);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (isVirtualDesktop) {
|
|
|
|
QGraphicsRectItem *virtualDesktop = new QGraphicsRectItem;
|
|
|
|
virtualDesktop->setRect(sceneRect);
|
|
|
|
virtualDesktop->setPen(QPen(Qt::black));
|
|
|
|
virtualDesktop->setBrush(Qt::DiagCrossPattern);
|
|
|
|
scene->addItem(virtualDesktop);
|
|
|
|
virtualDesktop->setZValue(-1);
|
|
|
|
virtualDesktop->show();
|
|
|
|
}
|
|
|
|
|
|
|
|
that = new QGraphicsRectItem;
|
|
|
|
that->setBrush(Qt::red);
|
|
|
|
that->setOpacity(0.5);
|
|
|
|
that->setZValue(2);
|
|
|
|
that->setRect(appRect());
|
|
|
|
that->show();
|
|
|
|
scene->addItem(that);
|
|
|
|
|
|
|
|
scene->setSceneRect(sceneRect);
|
|
|
|
scene->update();
|
|
|
|
}
|
|
|
|
|
|
|
|
QRect appRect() const
|
|
|
|
{
|
|
|
|
QRect rect = frameGeometry();
|
|
|
|
if (!QApplication::desktop()->isVirtualDesktop()) {
|
|
|
|
rect.translate(thatRoot);
|
|
|
|
}
|
|
|
|
return rect;
|
|
|
|
}
|
|
|
|
|
|
|
|
void desktopResized(int screen)
|
|
|
|
{
|
|
|
|
qDebug() << "Screen was resized: " << screen
|
|
|
|
<< ", new size =" << QApplication::desktop()->screenGeometry(screen);
|
|
|
|
}
|
|
|
|
void desktopWorkAreaResized(int screen)
|
|
|
|
{
|
|
|
|
qDebug() << "Screen workarea was resized: " << screen
|
|
|
|
<< ", new size =" << QApplication::desktop()->availableGeometry(screen);
|
|
|
|
}
|
|
|
|
void desktopScreenCountChanged(int screenCount)
|
|
|
|
{
|
|
|
|
QDesktopWidget *desktop = QApplication::desktop();
|
|
|
|
qDebug() << "";
|
|
|
|
if (screenCount != -1) {
|
|
|
|
qDebug() << "Screen count was changed to " << screenCount;
|
|
|
|
} else {
|
|
|
|
screenCount = desktop->screenCount();
|
|
|
|
qDebug() << "Screen count: " << screenCount;
|
|
|
|
}
|
|
|
|
for (int i = 0; i < screenCount; ++i) {
|
|
|
|
qDebug() << " #" << i << ": geometry =" << desktop->screenGeometry(i)
|
|
|
|
<< "; available geometry =" << desktop->availableGeometry(i);
|
|
|
|
}
|
|
|
|
qDebug() << "";
|
|
|
|
}
|
|
|
|
|
|
|
|
private:
|
|
|
|
QGraphicsScene *scene;
|
|
|
|
QGraphicsRectItem *that;
|
|
|
|
QPoint thatRoot;
|
|
|
|
};
|
|
|
|
|
|
|
|
#include "main.moc"
|
|
|
|
|
|
|
|
int main(int argc, char **argv)
|
|
|
|
{
|
|
|
|
QApplication app(argc, argv);
|
|
|
|
|
|
|
|
DesktopView view;
|
|
|
|
view.show();
|
|
|
|
|
|
|
|
return app.exec();
|
|
|
|
}
|