12 #ifndef QWT_PLOT_CANVAS_H 
   13 #define QWT_PLOT_CANVAS_H 
   17 #include "qwt_global.h" 
   90     void setFocusIndicator(FocusIndicator);
 
   91     FocusIndicator focusIndicator() 
const;
 
   93     void setPaintAttribute(PaintAttribute, 
bool on = 
true);
 
   94     bool testPaintAttribute(PaintAttribute) 
const;
 
   96     QPixmap *paintCache();
 
   97     const QPixmap *paintCache() 
const;
 
   98     void invalidatePaintCache();
 
  103     virtual void hideEvent(QHideEvent *);
 
  105     virtual void paintEvent(QPaintEvent *);
 
  107     virtual void drawContents(QPainter *);
 
  108     virtual void drawFocusIndicator(QPainter *);
 
  110     void drawCanvas(QPainter *painter = NULL);
 
  113     void setSystemBackground(
bool);