10 #ifndef QWT_WIDGET_OVERLAY_H 
   11 #define QWT_WIDGET_OVERLAY_H 
   13 #include "qwt_global.h" 
  117     void setMaskMode( MaskMode );
 
  118     MaskMode maskMode() 
const;
 
  120     void setRenderMode( RenderMode );
 
  121     RenderMode renderMode() 
const;
 
  123     void updateOverlay();
 
  125     virtual bool eventFilter( QObject *, QEvent *);
 
  128     virtual void paintEvent( QPaintEvent* event );
 
  129     virtual void resizeEvent( QResizeEvent* event );
 
  131     virtual QRegion maskHint() 
const;
 
  137     virtual void drawOverlay( QPainter *painter ) 
const = 0;
 
  141     void draw( QPainter * ) 
const;