void tst_QGraphicsEffect::inheritOpacity()
{
QGraphicsScene scene;
QGraphicsRectItem *rectItem = new QGraphicsRectItem(0, 0, 10, 10);
CustomItem *item = new CustomItem(0, 0, 10, 10, rectItem);
scene.addItem(rectItem);
item->setGraphicsEffect(new DeviceEffect);
item->setPen(Qt::NoPen);
item->setBrush(Qt::red);
rectItem->setOpacity(0.5);
QGraphicsView view(&scene);
view.show();
QTest::qWaitForWindowShown(&view);
QTRY_VERIFY(item->numRepaints >= 1);
int numRepaints = item->numRepaints;
rectItem->setOpacity(1);
// item should have been rerendered due to opacity changing
QTRY_VERIFY(item->numRepaints > numRepaints);
}
void tst_QGraphicsEffect::deviceCoordinateTranslateCaching()
{
QGraphicsScene scene;
CustomItem *item = new CustomItem(0, 0, 10, 10);
scene.addItem(item);
scene.setSceneRect(0, 0, 50, 0);
item->setGraphicsEffect(new DeviceEffect);
item->setPen(Qt::NoPen);
item->setBrush(Qt::red);
QGraphicsView view(&scene);
view.show();
QTest::qWaitForWindowShown(&view);
QTRY_VERIFY(item->numRepaints >= 1);
int numRepaints = item->numRepaints;
item->translate(10, 0);
QTRY_VERIFY(item->numRepaints == numRepaints);
}