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-rw-r--r--tests/auto/qgraphicswidget/tst_qgraphicswidget.cpp43
1 files changed, 43 insertions, 0 deletions
diff --git a/tests/auto/qgraphicswidget/tst_qgraphicswidget.cpp b/tests/auto/qgraphicswidget/tst_qgraphicswidget.cpp
index 79ce68e..6941d23 100644
--- a/tests/auto/qgraphicswidget/tst_qgraphicswidget.cpp
+++ b/tests/auto/qgraphicswidget/tst_qgraphicswidget.cpp
@@ -165,6 +165,7 @@ private slots:
void polishEvent2();
void autoFillBackground();
void initialShow();
+ void initialShow2();
// Task fixes
void task236127_bspTreeIndexFails();
@@ -2908,6 +2909,48 @@ void tst_QGraphicsWidget::initialShow()
QCOMPARE(widget->repaints, 1);
}
+void tst_QGraphicsWidget::initialShow2()
+{
+ class MyGraphicsWidget : public QGraphicsWidget
+ { public:
+ MyGraphicsWidget() : repaints(0) {}
+ int repaints;
+ void paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget*) { ++repaints; }
+ void polishEvent() { update(); }
+ };
+
+ // Don't let paint events triggered by the windowing system
+ // influence our test case. We're only interested in knowing
+ // whether a QGraphicsWidget generates an additional repaint
+ // on the inital show. Hence create a dummy scenario to find out
+ // how many repaints we should expect.
+ QGraphicsScene dummyScene(0, 0, 200, 200);
+ dummyScene.addItem(new QGraphicsRectItem(0, 0, 100, 100));
+
+ QGraphicsView *dummyView = new QGraphicsView(&dummyScene);
+ dummyView->setWindowFlags(Qt::X11BypassWindowManagerHint);
+ EventSpy paintSpy(dummyView->viewport(), QEvent::Paint);
+ dummyView->show();
+ QTest::qWaitForWindowShown(dummyView);
+ const int expectedRepaintCount = paintSpy.count();
+ delete dummyView;
+ dummyView = 0;
+ QTest::qWait(200);
+
+ MyGraphicsWidget *widget = new MyGraphicsWidget;
+ widget->resize(100, 100);
+
+ QGraphicsScene scene(0, 0, 200, 200);
+ scene.addItem(widget);
+
+ QGraphicsView view(&scene);
+ view.setWindowFlags(Qt::X11BypassWindowManagerHint);
+ view.show();
+ QTest::qWaitForWindowShown(&view);
+
+ QCOMPARE(widget->repaints, expectedRepaintCount);
+}
+
void tst_QGraphicsWidget::QT_BUG_6544_tabFocusFirstUnsetWhenRemovingItems()
{
QGraphicsScene scene;