summaryrefslogtreecommitdiffstats
path: root/tests/auto/qgraphicsview
diff options
context:
space:
mode:
Diffstat (limited to 'tests/auto/qgraphicsview')
-rw-r--r--tests/auto/qgraphicsview/tst_qgraphicsview.cpp57
1 files changed, 57 insertions, 0 deletions
diff --git a/tests/auto/qgraphicsview/tst_qgraphicsview.cpp b/tests/auto/qgraphicsview/tst_qgraphicsview.cpp
index 1df9a37..b8df7f6 100644
--- a/tests/auto/qgraphicsview/tst_qgraphicsview.cpp
+++ b/tests/auto/qgraphicsview/tst_qgraphicsview.cpp
@@ -218,6 +218,7 @@ private slots:
void update();
void update2_data();
void update2();
+ void update_ancestorClipsChildrenToShape();
void inputMethodSensitivity();
void inputContextReset();
void indirectPainting();
@@ -3758,6 +3759,62 @@ void tst_QGraphicsView::update2()
#endif
}
+void tst_QGraphicsView::update_ancestorClipsChildrenToShape()
+{
+ QGraphicsScene scene(-150, -150, 300, 300);
+
+ /*
+ Add three rects:
+
+ +------------------+
+ | child |
+ | +--------------+ |
+ | | parent | |
+ | | +-----------+ |
+ | | |grandParent| |
+ | | +-----------+ |
+ | +--------------+ |
+ +------------------+
+
+ ... where both the parent and the grand parent clips children to shape.
+ */
+ QApplication::processEvents(); // Get rid of pending update.
+
+ QGraphicsRectItem *grandParent = static_cast<QGraphicsRectItem *>(scene.addRect(0, 0, 50, 50));
+ grandParent->setBrush(Qt::black);
+ grandParent->setFlag(QGraphicsItem::ItemClipsChildrenToShape);
+
+ QGraphicsRectItem *parent = static_cast<QGraphicsRectItem *>(scene.addRect(-50, -50, 100, 100));
+ parent->setBrush(QColor(0, 0, 255, 125));
+ parent->setParentItem(grandParent);
+ parent->setFlag(QGraphicsItem::ItemClipsChildrenToShape);
+
+ QGraphicsRectItem *child = static_cast<QGraphicsRectItem *>(scene.addRect(-100, -100, 200, 200));
+ child->setBrush(QColor(255, 0, 0, 125));
+ child->setParentItem(parent);
+
+ CustomView view(&scene);
+ view.show();
+ QTest::qWaitForWindowShown(&view);
+ QTRY_VERIFY(view.painted);
+
+ view.lastUpdateRegions.clear();
+ view.painted = false;
+
+ // Call child->update() and make sure the updated area is within the ancestors' clip.
+ QRectF expected = child->deviceTransform(view.viewportTransform()).mapRect(child->boundingRect());
+ expected &= grandParent->deviceTransform(view.viewportTransform()).mapRect(grandParent->boundingRect());
+
+ child->update();
+ QTRY_VERIFY(view.painted);
+
+#ifndef QT_MAC_USE_COCOA //cocoa doesn't support drawing regions
+ QTRY_VERIFY(view.painted);
+ QCOMPARE(view.lastUpdateRegions.size(), 1);
+ QCOMPARE(view.lastUpdateRegions.at(0), QRegion(expected.toAlignedRect()));
+#endif
+}
+
class FocusItem : public QGraphicsRectItem
{
public: