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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtCore>
#include <QtGui>
class Pixmap : public QGraphicsWidget
{
Q_OBJECT
public:
Pixmap(const QPixmap &pix, QGraphicsItem *parent = 0)
: QGraphicsWidget(parent), orig(pix), p(pix)
{
}
void paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)
{
painter->drawPixmap(QPointF(), p);
}
virtual void mousePressEvent(QGraphicsSceneMouseEvent * )
{
emit clicked();
}
virtual void setGeometry(const QRectF &rect)
{
QGraphicsWidget::setGeometry(rect);
if (rect.size().width() > orig.size().width())
p = orig.scaled(rect.size().toSize());
else
p = orig;
}
Q_SIGNALS:
void clicked();
private:
QPixmap orig;
QPixmap p;
};
void createStates(const QObjectList &objects,
const QRect &selectedRect, QState *parent)
{
for (int i = 0; i < objects.size(); ++i) {
QState *state = new QState(parent);
state->assignProperty(objects.at(i), "geometry", selectedRect);
parent->addTransition(objects.at(i), SIGNAL(clicked()), state);
}
}
void createAnimations(const QObjectList &objects, QStateMachine *machine)
{
for (int i=0; i<objects.size(); ++i)
machine->addDefaultAnimation(new QPropertyAnimation(objects.at(i), "geometry"));
}
int main(int argc, char **argv)
{
Q_INIT_RESOURCE(appchooser);
QApplication app(argc, argv);
Pixmap *p1 = new Pixmap(QPixmap(":/digikam.png"));
Pixmap *p2 = new Pixmap(QPixmap(":/akregator.png"));
Pixmap *p3 = new Pixmap(QPixmap(":/accessories-dictionary.png"));
Pixmap *p4 = new Pixmap(QPixmap(":/k3b.png"));
p1->setObjectName("p1");
p2->setObjectName("p2");
p3->setObjectName("p3");
p4->setObjectName("p4");
p1->setGeometry(QRectF(0.0, 0.0, 64.0, 64.0));
p2->setGeometry(QRectF(236.0, 0.0, 64.0, 64.0));
p3->setGeometry(QRectF(236.0, 236.0, 64.0, 64.0));
p4->setGeometry(QRectF(0.0, 236.0, 64.0, 64.0));
QGraphicsScene scene(0, 0, 300, 300);
scene.setBackgroundBrush(Qt::white);
scene.addItem(p1);
scene.addItem(p2);
scene.addItem(p3);
scene.addItem(p4);
QGraphicsView window(&scene);
window.setFrameStyle(0);
window.setAlignment(Qt::AlignLeft | Qt::AlignTop);
window.setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
window.setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
QStateMachine machine;
machine.setGlobalRestorePolicy(QStateMachine::RestoreProperties);
QState *group = new QState(&machine);
group->setObjectName("group");
QRect selectedRect(86, 86, 128, 128);
QState *idleState = new QState(group);
group->setInitialState(idleState);
QObjectList objects;
objects << p1 << p2 << p3 << p4;
createStates(objects, selectedRect, group);
createAnimations(objects, &machine);
machine.setInitialState(group);
machine.start();
window.resize(300, 300);
window.show();
return app.exec();
}
#include "main.moc"
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