C++/Qt/QTimeLine
Adding animation with QTimeLine
<source lang="cpp"> /****************************************************************************
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- include <QtGui>
- include <math.h>
int main(int argv, char *args[]) {
QApplication app(argv, args);
QGraphicsItem *ball = new QGraphicsEllipseItem(0, 0, 20, 20); QTimeLine *timer = new QTimeLine(5000); timer->setFrameRange(0, 100); QGraphicsItemAnimation *animation = new QGraphicsItemAnimation; animation->setItem(ball); animation->setTimeLine(timer); for (int i = 0; i < 200; ++i) animation->setPosAt(i / 200.0, QPointF(i, i)); QGraphicsScene *scene = new QGraphicsScene(); scene->setSceneRect(0, 0, 250, 250); scene->addItem(ball); QGraphicsView *view = new QGraphicsView(scene); view->show(); timer->start();
return app.exec();
}
</source>