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#include <QtGui>
#include "qvalueanimation.h"
AbstractProperty *qGraphicsItemProperty(QGraphicsItem *item, const char *property)
{
if (qstrcmp(property, "pos") == 0) {
return new MemberFunctionProperty<QGraphicsItem, QPointF>(item, &QGraphicsItem::pos, &QGraphicsItem::setPos);
}
return 0;
}
int main(int argc, char **argv)
{
QApplication app(argc, argv);
QGraphicsScene scene;
QGraphicsView view(&scene);
QGraphicsItem *item = new QGraphicsRectItem(QRectF(0,0, 200, 100));
scene.addItem(item);
QValueAnimation *posAnim = new QValueAnimation;
posAnim->setStartValue(QPointF(0,0));
posAnim->setEndValue(QPointF(400, 0));
posAnim->setDuration(1000);
// Alternative 1
//posAnim->setMemberFunction(item, &QGraphicsItem::pos, &QGraphicsItem::setPos);
// Alternative 2
//posAnim->setProperty(qMemberFunctionProperty(item, &QGraphicsItem::pos, &QGraphicsItem::setPos));
// Alternative 3
posAnim->setProperty(qGraphicsItemProperty(item, "pos"));
// Alternative 4, (by implementing the qGraphicsItemProperty QGraphicsItem::property())
//posAnim->setProperty(item->property("pos"));
// can also do this, which abstracts away the whole property thing.
// i.e. this interface can also be used for QObject-properties:
//posAnim->setAnimationProperty(animationProperty);
posAnim->start();
view.resize(800,600);
view.show();
return app.exec();
}
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