> > > For the sake of argument lets say i want to fill a window area with > > randomly sized & placed and randomly coloured rectangles. > > You need to draw the entire scene, every time. This is "normal". > > So if you have multiple rectangles, then you need a data-structure that > holds all of your rectangles; this structure would be a member of your > subclassed "canvas" widget, and so is readily accessible to your draw > method.=20 > > Each time the draw method runs, the scene is cleared and redrawn. >> > If so, I can probably post a worked example (indeed, I think I did a > while back) showing exactly that. >
Yes The refresh whole scene method is familiar to me, i understand how the whole thing would go together now, i could just use a member variable in my struct to flag the status of the rectangle and colour it or whatever accordingly. then draw the lot. The individual 'incremental method you mentioned would be of interest to me for insight also, if you would like to post it, thanks. > _______________________________________________ fltk mailing list [email protected] http://lists.easysw.com/mailman/listinfo/fltk
