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Handle device pixel ratio in QTreeWidget animations 

As we are rendering into a new paint device we need to copy the device
pixel ratio from the widget.

Task-number: QTBUG-50207
Change-Id: I2fe08052c4ab589cb871f4c95440b7d63f79beb9
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
bb10
David Edmundson 2016-06-13 17:56:49 +02:00
parent cbe332405a
commit 49491dd678
1 changed files with 2 additions and 1 deletions
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3
src/widgets/itemviews/qtreeview.cpp
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@ -3232,7 +3232,8 @@ void QTreeViewPrivate::drawAnimatedOperation(QPainter *painter) const
QPixmap QTreeViewPrivate::renderTreeToPixmapForAnimation(const QRect &rect) const
{
Q_Q(const QTreeView);
QPixmap pixmap(rect.size());
QPixmap pixmap(rect.size() * q->devicePixelRatio());
pixmap.setDevicePixelRatio(q->devicePixelRatio());
if (rect.size().isEmpty())
return pixmap;
pixmap.fill(Qt::transparent); //the base might not be opaque, and we don't want uninitialized pixels.