On 18/01/11 22:16, Ish wrote: > Hi guys I am making a very simple graph widget. It has a window for a > graph constructed by iterating through a vector of points and calling > fl_line on two consecutive points. > > Additionally I have a text that indicates the coordinate i am pointed > at and a cross that comes from the sides of the window meeting at its > center, your current mouse position (event_x(), event_y()) > > I call redraw every time I get the event FL_MOVE. My redraw draws the > entire screen. > > My widget is very slow, and choppy.
If it were me, I'd probably render the graph just the one time, into an fl_offscreen, then blit that into the visible widget and draw the cursor graphic over it as thw mouse moved. That ought to be "low cost" enough to do at a reasonable refresh rate with being too choppy. _______________________________________________ fltk mailing list [email protected] http://lists.easysw.com/mailman/listinfo/fltk
