virtual void fitAll( bool withZ = true ) = 0;
virtual void reset() = 0;
-
+
+ virtual void incrementalPan ( const int incrX, const int incrY ) = 0;
+ virtual void incrementalZoom ( const int incr ) = 0;
+ virtual void incrementalRotate( const int incrX, const int incrY ) = 0;
+
+ /* background color */
virtual QColor backgroundColor() const;
virtual void setBackgroundColor( const QColor& color) = 0;