qt5base-lts/examples/animation/animatedtiles/main.cpp
Jason McDonald 5635823e17 Remove "All rights reserved" line from license headers.
As in the past, to avoid rewriting various autotests that contain
line-number information, an extra blank line has been inserted at the
end of the license text to ensure that this commit does not change the
total number of lines in the license header.

Change-Id: I311e001373776812699d6efc045b5f742890c689
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
2012-01-30 03:54:59 +01:00

257 lines
8.7 KiB
C++

/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtWidgets>
#include <QtCore/qstate.h>
class Pixmap : public QObject, public QGraphicsPixmapItem
{
Q_OBJECT
Q_PROPERTY(QPointF pos READ pos WRITE setPos)
public:
Pixmap(const QPixmap &pix)
: QObject(), QGraphicsPixmapItem(pix)
{
setCacheMode(DeviceCoordinateCache);
}
};
class Button : public QGraphicsWidget
{
Q_OBJECT
public:
Button(const QPixmap &pixmap, QGraphicsItem *parent = 0)
: QGraphicsWidget(parent), _pix(pixmap)
{
setAcceptHoverEvents(true);
setCacheMode(DeviceCoordinateCache);
}
QRectF boundingRect() const
{
return QRectF(-65, -65, 130, 130);
}
QPainterPath shape() const
{
QPainterPath path;
path.addEllipse(boundingRect());
return path;
}
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *)
{
bool down = option->state & QStyle::State_Sunken;
QRectF r = boundingRect();
QLinearGradient grad(r.topLeft(), r.bottomRight());
grad.setColorAt(down ? 1 : 0, option->state & QStyle::State_MouseOver ? Qt::white : Qt::lightGray);
grad.setColorAt(down ? 0 : 1, Qt::darkGray);
painter->setPen(Qt::darkGray);
painter->setBrush(grad);
painter->drawEllipse(r);
QLinearGradient grad2(r.topLeft(), r.bottomRight());
grad.setColorAt(down ? 1 : 0, Qt::darkGray);
grad.setColorAt(down ? 0 : 1, Qt::lightGray);
painter->setPen(Qt::NoPen);
painter->setBrush(grad);
if (down)
painter->translate(2, 2);
painter->drawEllipse(r.adjusted(5, 5, -5, -5));
painter->drawPixmap(-_pix.width()/2, -_pix.height()/2, _pix);
}
signals:
void pressed();
protected:
void mousePressEvent(QGraphicsSceneMouseEvent *)
{
emit pressed();
update();
}
void mouseReleaseEvent(QGraphicsSceneMouseEvent *)
{
update();
}
private:
QPixmap _pix;
};
class View : public QGraphicsView
{
public:
View(QGraphicsScene *scene) : QGraphicsView(scene) { }
protected:
void resizeEvent(QResizeEvent *event)
{
QGraphicsView::resizeEvent(event);
fitInView(sceneRect(), Qt::KeepAspectRatio);
}
};
int main(int argc, char **argv)
{
Q_INIT_RESOURCE(animatedtiles);
QApplication app(argc, argv);
QPixmap kineticPix(":/images/kinetic.png");
QPixmap bgPix(":/images/Time-For-Lunch-2.jpg");
QGraphicsScene scene(-350, -350, 700, 700);
QList<Pixmap *> items;
for (int i = 0; i < 64; ++i) {
Pixmap *item = new Pixmap(kineticPix);
item->setOffset(-kineticPix.width()/2, -kineticPix.height()/2);
item->setZValue(i);
items << item;
scene.addItem(item);
}
// Buttons
QGraphicsItem *buttonParent = new QGraphicsRectItem;
Button *ellipseButton = new Button(QPixmap(":/images/ellipse.png"), buttonParent);
Button *figure8Button = new Button(QPixmap(":/images/figure8.png"), buttonParent);
Button *randomButton = new Button(QPixmap(":/images/random.png"), buttonParent);
Button *tiledButton = new Button(QPixmap(":/images/tile.png"), buttonParent);
Button *centeredButton = new Button(QPixmap(":/images/centered.png"), buttonParent);
ellipseButton->setPos(-100, -100);
figure8Button->setPos(100, -100);
randomButton->setPos(0, 0);
tiledButton->setPos(-100, 100);
centeredButton->setPos(100, 100);
scene.addItem(buttonParent);
buttonParent->scale(0.75, 0.75);
buttonParent->setPos(200, 200);
buttonParent->setZValue(65);
// States
QState *rootState = new QState;
QState *ellipseState = new QState(rootState);
QState *figure8State = new QState(rootState);
QState *randomState = new QState(rootState);
QState *tiledState = new QState(rootState);
QState *centeredState = new QState(rootState);
// Values
for (int i = 0; i < items.count(); ++i) {
Pixmap *item = items.at(i);
// Ellipse
ellipseState->assignProperty(item, "pos",
QPointF(cos((i / 63.0) * 6.28) * 250,
sin((i / 63.0) * 6.28) * 250));
// Figure 8
figure8State->assignProperty(item, "pos",
QPointF(sin((i / 63.0) * 6.28) * 250,
sin(((i * 2)/63.0) * 6.28) * 250));
// Random
randomState->assignProperty(item, "pos",
QPointF(-250 + qrand() % 500,
-250 + qrand() % 500));
// Tiled
tiledState->assignProperty(item, "pos",
QPointF(((i % 8) - 4) * kineticPix.width() + kineticPix.width() / 2,
((i / 8) - 4) * kineticPix.height() + kineticPix.height() / 2));
// Centered
centeredState->assignProperty(item, "pos", QPointF());
}
// Ui
View *view = new View(&scene);
view->setWindowTitle(QT_TRANSLATE_NOOP(QGraphicsView, "Animated Tiles"));
view->setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
view->setBackgroundBrush(bgPix);
view->setCacheMode(QGraphicsView::CacheBackground);
view->setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform);
view->show();
QStateMachine states;
states.addState(rootState);
states.setInitialState(rootState);
rootState->setInitialState(centeredState);
QParallelAnimationGroup *group = new QParallelAnimationGroup;
for (int i = 0; i < items.count(); ++i) {
QPropertyAnimation *anim = new QPropertyAnimation(items[i], "pos");
anim->setDuration(750 + i * 25);
anim->setEasingCurve(QEasingCurve::InOutBack);
group->addAnimation(anim);
}
QAbstractTransition *trans = rootState->addTransition(ellipseButton, SIGNAL(pressed()), ellipseState);
trans->addAnimation(group);
trans = rootState->addTransition(figure8Button, SIGNAL(pressed()), figure8State);
trans->addAnimation(group);
trans = rootState->addTransition(randomButton, SIGNAL(pressed()), randomState);
trans->addAnimation(group);
trans = rootState->addTransition(tiledButton, SIGNAL(pressed()), tiledState);
trans->addAnimation(group);
trans = rootState->addTransition(centeredButton, SIGNAL(pressed()), centeredState);
trans->addAnimation(group);
QTimer timer;
timer.start(125);
timer.setSingleShot(true);
trans = rootState->addTransition(&timer, SIGNAL(timeout()), ellipseState);
trans->addAnimation(group);
states.start();
#ifdef QT_KEYPAD_NAVIGATION
QApplication::setNavigationMode(Qt::NavigationModeCursorAuto);
#endif
return app.exec();
}
#include "main.moc"