Pack Graphics View booleans in quint32 bit fields.

Reduces the memory footprint of a typical GV application by
27 * sizeof(bool). Nothing revolutionary, but you know, every byte counts :-)

Reviewed-by: Jan-Arve

1 files changed, 16 insertions, 13 deletions

diff --git a/src/gui/graphicsview/qgraphicsview_p.h b/src/gui/graphicsview/qgraphicsview_p.h
index aeff28a..1239ca4 100644
--- a/src/gui/graphicsview/qgraphicsview_p.h
+++ b/src/gui/graphicsview/qgraphicsview_p.h
@@ -77,11 +77,24 @@ public:
     QPainter::RenderHints renderHints;
 
     QGraphicsView::DragMode dragMode;
-    bool sceneInteractionAllowed;
+
+    quint32 sceneInteractionAllowed : 1;
+    quint32 hasSceneRect : 1;
+    quint32 connectedToScene : 1;
+    quint32 useLastMouseEvent : 1;
+    quint32 identityMatrix : 1;
+    quint32 dirtyScroll : 1;
+    quint32 accelerateScrolling : 1;
+    quint32 keepLastCenterPoint : 1;
+    quint32 transforming : 1;
+    quint32 handScrolling : 1;
+    quint32 mustAllocateStyleOptions : 1;
+    quint32 mustResizeBackgroundPixmap : 1;
+    quint32 fullUpdatePending : 1;
+    quint32 padding : 19;
+
     QRectF sceneRect;
-    bool hasSceneRect;
     void updateLastCenterPoint();
-    bool connectedToScene;
 
     qint64 horizontalScroll() const;
     qint64 verticalScroll() const;
@@ -98,26 +111,20 @@ public:
     QPoint dirtyScrollOffset;
     Qt::MouseButton mousePressButton;
     QTransform matrix;
-    bool identityMatrix;
     qint64 scrollX, scrollY;
-    bool dirtyScroll;
     void updateScroll();
 
-    bool accelerateScrolling;
     qreal leftIndent;
     qreal topIndent;
 
     // Replaying mouse events
     QMouseEvent lastMouseEvent;
-    bool useLastMouseEvent;
     void replayLastMouseEvent();
     void storeMouseEvent(QMouseEvent *event);
     void mouseMoveEventHandler(QMouseEvent *event);
 
     QPointF lastCenterPoint;
-    bool keepLastCenterPoint;
     Qt::Alignment alignment;
-    bool transforming;
 
     QGraphicsView::ViewportAnchor transformationAnchor;
     QGraphicsView::ViewportAnchor resizeAnchor;
@@ -131,20 +138,17 @@ public:
     bool rubberBanding;
     Qt::ItemSelectionMode rubberBandSelectionMode;
 #endif
-    bool handScrolling;
     int handScrollMotions;
 
     QGraphicsView::CacheMode cacheMode;
 
     QVector<QStyleOptionGraphicsItem> styleOptions;
-    bool mustAllocateStyleOptions;
     QStyleOptionGraphicsItem *allocStyleOptionsArray(int numItems);
     void freeStyleOptionsArray(QStyleOptionGraphicsItem *array);
 
     QBrush backgroundBrush;
     QBrush foregroundBrush;
     QPixmap backgroundPixmap;
-    bool mustResizeBackgroundPixmap;
     QRegion backgroundPixmapExposed;
 
 #ifndef QT_NO_CURSOR
@@ -161,7 +165,6 @@ public:
 
     QRect mapToViewRect(const QGraphicsItem *item, const QRectF &rect) const;
     QRegion mapToViewRegion(const QGraphicsItem *item, const QRectF &rect) const;
-    bool fullUpdatePending;
     QRegion dirtyRegion;
     QRect dirtyBoundingRect;
     void processPendingUpdates();