Fixes painting issues when scaling a QGraphicsView.

The problem was that the 'exposed rectangle' passed to the Item's paint() function was rounded to Int values, whereas the one passed to drawBackground and drawForeground was not.

Autotest included.

Task-number: QTBUG-5859
Reviewed-by: bnilsen

1 files changed, 1 insertions, 1 deletions

diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp
index 3f6dff2..710048e 100644
--- a/src/gui/graphicsview/qgraphicsitem.cpp
+++ b/src/gui/graphicsview/qgraphicsitem.cpp
@@ -1240,7 +1240,7 @@ void QGraphicsItemPrivate::initStyleOption(QStyleOptionGraphicsItem *option, con
         const QTransform reverseMap = worldTransform.inverted();
         const QVector<QRect> exposedRects(exposedRegion.rects());
         for (int i = 0; i < exposedRects.size(); ++i) {
-            option->exposedRect |= reverseMap.mapRect(exposedRects.at(i));
+            option->exposedRect |= reverseMap.mapRect(QRectF(exposedRects.at(i)));
             if (option->exposedRect.contains(brect))
                 break;
         }