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authorOswald Buddenhagen <oswald.buddenhagen@nokia.com>2009-06-23 10:32:42 (GMT)
committerOswald Buddenhagen <oswald.buddenhagen@nokia.com>2009-06-23 10:32:42 (GMT)
commite1eceedaa635d0180eb798b00c3da93156d7af63 (patch)
tree04325155309fd225d68a4cf118be34c2378cb26a /src/gui/painting/qbackingstore.cpp
parent2c96aeb45320ade7e2c074433560185f16631374 (diff)
parent71be46c61c582d2f4635a1e420e44d57ddb5857a (diff)
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Merge commit 'origin/4.5'
Conflicts: src/sql/drivers/psql/qsql_psql.cpp
Diffstat (limited to 'src/gui/painting/qbackingstore.cpp')
-rw-r--r--src/gui/painting/qbackingstore.cpp5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/gui/painting/qbackingstore.cpp b/src/gui/painting/qbackingstore.cpp
index d3b4157..34bc578 100644
--- a/src/gui/painting/qbackingstore.cpp
+++ b/src/gui/painting/qbackingstore.cpp
@@ -258,7 +258,10 @@ void QWidgetBackingStore::unflushPaint(QWidget *widget, const QRegion &rgn)
bool QWidgetBackingStore::bltRect(const QRect &rect, int dx, int dy, QWidget *widget)
{
const QPoint pos(tlwOffset + widget->mapTo(tlw, rect.topLeft()));
- return windowSurface->scroll(QRect(pos, rect.size()), dx, dy);
+ const QRect tlwRect(QRect(pos, rect.size()));
+ if (dirty.intersects(tlwRect))
+ return false; // We don't want to scroll junk.
+ return windowSurface->scroll(tlwRect, dx, dy);
}
void QWidgetBackingStore::releaseBuffer()