221     void indirectPainting();

   222     void compositionModeInDrawBackground();

  3804 void tst_QGraphicsView::indirectPainting()

  3805 {

  3806     class MyScene : public QGraphicsScene

  3807     { public:

  3808         MyScene() : QGraphicsScene(), drawCount(0) {}

  3809         void drawItems(QPainter *, int, QGraphicsItem **, const QStyleOptionGraphicsItem *, QWidget *)

  3810         { ++drawCount; }

  3811         int drawCount;

  3812     };

  3813 

  3814     MyScene scene;

  3815     QGraphicsItem *item = scene.addRect(0, 0, 50, 50);

  3816 

  3817     QGraphicsView view(&scene);

  3818     view.setOptimizationFlag(QGraphicsView::IndirectPainting);

  3819     view.show();

  3820     QTest::qWaitForWindowShown(&view);

  3821     QTest::qWait(100);

  3822 

  3823     scene.drawCount = 0;

  3824     item->setPos(20, 20);

  3825     QApplication::processEvents();

  3826     QTRY_VERIFY(scene.drawCount > 0);

  3827 }

  3828 

  3829 void tst_QGraphicsView::compositionModeInDrawBackground()

  3830 {

  3831     class MyView : public QGraphicsView

  3832     { public:

  3833         MyView(QGraphicsScene *scene) : QGraphicsView(scene),

  3834         painted(false), compositionMode(QPainter::CompositionMode_SourceOver) {}

  3835         bool painted;

  3836         QPainter::CompositionMode compositionMode;

  3837         void drawBackground(QPainter *painter, const QRectF &)

  3838         {

  3839             compositionMode = painter->compositionMode();

  3840             painted = true;

  3841         }

  3842     };

  3843 

  3844     QGraphicsScene dummy;

  3845     MyView view(&dummy);

  3846     view.show();

  3847     QTest::qWaitForWindowShown(&view);

  3848 

  3849     // Make sure the painter's composition mode is SourceOver in drawBackground.

  3850     QTRY_VERIFY(view.painted);

  3851     QCOMPARE(view.compositionMode, QPainter::CompositionMode_SourceOver);

  3852 

  3853     view.painted = false;

  3854     view.setCacheMode(QGraphicsView::CacheBackground);

  3855     view.viewport()->update();

  3856 

  3857     // Make sure the painter's composition mode is SourceOver in drawBackground

  3858     // with background cache enabled.

  3859     QTRY_VERIFY(view.painted);

  3860     QCOMPARE(view.compositionMode, QPainter::CompositionMode_SourceOver);

  3861 }