17 #ifndef QGSNUMERICSCALEBARSTYLE_H    18 #define QGSNUMERICSCALEBARSTYLE_H    33     void draw( 
QPainter* p, 
double xOffset = 0 ) 
const override;
    44     mutable double mLastScaleBarWidth;
 A scale bar item that can be added to a map composition. 
 
A scale bar style that draws text in the form of '1:XXXXX'. 
 
virtual QRectF calculateBoxSize() const 
 
virtual QString name() const =0
 
virtual void draw(QPainter *p, double xOffset=0) const =0
Draws the style. 
 
Abstraction of composer scale bar style.