17 #ifndef QGSDOUBLEBOXSCALEBARSTYLE_H    18 #define QGSDOUBLEBOXSCALEBARSTYLE_H    33     void draw( 
QPainter* p, 
double xOffset = 0 ) 
const override;
 Double box with alternating colors. 
 
A scale bar item that can be added to a map composition. 
 
virtual QString name() const =0
 
virtual void draw(QPainter *p, double xOffset=0) const =0
Draws the style. 
 
Abstraction of composer scale bar style.