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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include <QtMath>
#include <QtWidgets>
#include "mouse.h"
static constexpr int MouseCount = 7;
//! [0]
int main(int argc, char **argv)
{
QApplication app(argc, argv);
//! [0]
//! [1]
QGraphicsScene scene;
scene.setSceneRect(-300, -300, 600, 600);
//! [1] //! [2]
scene.setItemIndexMethod(QGraphicsScene::NoIndex);
//! [2]
//! [3]
for (int i = 0; i < MouseCount; ++i) {
Mouse *mouse = new Mouse;
mouse->setPos(::sin((i * 6.28) / MouseCount) * 200,
::cos((i * 6.28) / MouseCount) * 200);
scene.addItem(mouse);
}
//! [3]
//! [4]
QGraphicsView view(&scene);
view.setRenderHint(QPainter::Antialiasing);
view.setBackgroundBrush(QPixmap(":/images/cheese.jpg"));
//! [4] //! [5]
view.setCacheMode(QGraphicsView::CacheBackground);
view.setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
view.setDragMode(QGraphicsView::ScrollHandDrag);
//! [5] //! [6]
view.setWindowTitle(QT_TRANSLATE_NOOP(QGraphicsView, "Colliding Mice"));
view.resize(400, 300);
view.show();
QTimer timer;
QObject::connect(&timer, &QTimer::timeout, &scene, &QGraphicsScene::advance);
timer.start(1000 / 33);
return app.exec();
}
//! [6]
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