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Revert "Fix double painting when adding an item into a linear layout"

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(It did not really fix the issue.)

This reverts commit 33f525e636ef8fa64a15d3e66c56adaea0075bda.

Conflicts:

	src/gui/graphicsview/qgraphicslinearlayout.cpp
	tests/auto/qgraphicswidget/tst_qgraphicswidget.cpp
(cherry picked from commit fee052e3e37b3335fe563cb8a1881bf59f9e25d0)
This commit is contained in:
Jan-Arve Sæther 2011-04-28 13:58:12 +02:00 committed by Thierry Bastian
parent 446a7ba4ff
commit 1625b25a9f
2 changed files with 1 additions and 45 deletions
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5
src/gui/graphicsview/qgraphicslinearlayout.cpp
View File

@ -275,15 +275,12 @@ void QGraphicsLinearLayout::insertItem(int index, QGraphicsLayoutItem *item)
qWarning("QGraphicsLinearLayout::insertItem: cannot insert itself");
return;
}
d->addChildLayoutItem(item);
Q_ASSERT(item);
d->fixIndex(&index);
d->engine.insertRow(index, d->orientation);
new QGridLayoutItem(&d->engine, item, d->gridRow(index), d->gridColumn(index), 1, 1, 0, index);
//the order of the following instructions is very important because
//invalidating the layout before adding the child item will make the layout happen
//before we try to paint the item
invalidate();
}

41
tests/auto/qgraphicswidget/tst_qgraphicswidget.cpp
View File

@ -186,7 +186,6 @@ private slots:
void task250119_shortcutContext();
void QT_BUG_6544_tabFocusFirstUnsetWhenRemovingItems();
void QT_BUG_12056_tabFocusFirstUnsetWhenRemovingItems();
void QT_BUG_13865_doublePaintWhenAddingASubItem();
};
@ -3367,46 +3366,6 @@ void tst_QGraphicsWidget::QT_BUG_12056_tabFocusFirstUnsetWhenRemovingItems()
//This should not crash
}
struct GreenWidget : public QGraphicsWidget
{
GreenWidget() : count(0)
{
}
void paint ( QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * )
{
count++;
painter->setPen(Qt::green);
painter->drawRect(option->rect.adjusted(0,0,-1,-1));
}
int count;
};
void tst_QGraphicsWidget::QT_BUG_13865_doublePaintWhenAddingASubItem()
{
QGraphicsScene scene;
QGraphicsView view(&scene);
QGraphicsWidget *widget = new QGraphicsWidget;
widget->resize(100, 100);
scene.addItem(widget);
QGraphicsLinearLayout *layout = new QGraphicsLinearLayout(widget);
view.show();
QTest::qWaitForWindowShown(&view);
QApplication::processEvents();
GreenWidget *sub = new GreenWidget;
layout->addItem(sub);
QTest::qWait(100);
QCOMPARE(sub->count, 1); //it should only be painted once
}
QTEST_MAIN(tst_QGraphicsWidget)
#include "tst_qgraphicswidget.moc"