optimize QRasterWindowSurface::scroll()

Signed-off-by: Ivailo Monev <xakepa10@laimg.moc>

diff --git a/src/gui/painting/qwindowsurface_raster.cpp b/src/gui/painting/qwindowsurface_raster.cpp
index 7b23e1f..5dfe46b 100644 (file)
--- a/src/gui/painting/qwindowsurface_raster.cpp
+++ b/src/gui/painting/qwindowsurface_raster.cpp
@@ -221,10 +221,7 @@ bool QRasterWindowSurface::scroll(const QRegion &area, int dx, int dy)
     syncX();
 #endif
 
-    const QPoint point = QPoint(dx, dy);
-    foreach (const QRect rect, area.rects()) {
-        qt_scrollRectInImage(d->image, rect, point);
-    }
+    qt_scrollRectInImage(d->image, area.boundingRect(), QPoint(dx, dy));
 
     return true;
 }