A class representing a text. 
Definition: qwt_text.h:51
virtual void getCanvasMarginHint(const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasSize, double &left, double &top, double &right, double &bottom) const 
Calculate a hint for the canvas margin. 
Definition: qwt_plot_item.cpp:564