Custom plot selection

[gorec323]

Use a picker with a RectRubberBand and one of the machines made for rectangles ( f.e. QwtPickerDragRectMachine ). Overload QwtPicker::drawRubberband() where you do a QPainter::drawRect() using the y coordinates from of bounding rectangle of the pickArea.

Uwe

Function QwtPicker::drawRubberband() is not used anywhere in the source code, qwt library.