Massive re-factoring of Graphics View's update mechanism.

This is work-in-progress, so don't expect everything to work perfectly.
Most of the auto-test pass and examples and demos seem to run fine.

Unfortunately I'm too tired to write about the actual update mehanism
now, but it's faster than the old approach (if that helps:)). There's
more to optimize, but I'll come back to that later. I need some sleep now :)

To be continued.

1 files changed, 2 insertions, 7 deletions

diff --git a/src/gui/graphicsview/qgraphicsview_p.h b/src/gui/graphicsview/qgraphicsview_p.h
index c18f85d..637687b 100644
--- a/src/gui/graphicsview/qgraphicsview_p.h
+++ b/src/gui/graphicsview/qgraphicsview_p.h
@@ -159,15 +159,10 @@ public:
 
     QRect mapToViewRect(const QGraphicsItem *item, const QRectF &rect) const;
     QRegion mapToViewRegion(const QGraphicsItem *item, const QRectF &rect) const;
-    void itemUpdated(QGraphicsItem *item, const QRectF &rect);
     bool fullUpdatePending;
-    QList<QRect> dirtyRects;
-    QList<QRegion> dirtyRegions;
-    int dirtyRectCount;
+    QRegion dirtyRegion;
     QRect dirtyBoundingRect;
-    void updateLater();
-    bool updatingLater;
-    void _q_updateLaterSlot();
+    void processPendingUpdates();
     void updateAll();
     void updateRect(const QRect &rect);
     void updateRegion(const QRegion &region);