On Nov 28, 2007 4:27 AM, Stewart Weiss <stewart.weiss@xxxxxxx> wrote: > Aha! I did not know that I could configure the GC to draw using > various functions of the source and dest pixels values. Thanks ! I posted a mail about rubberbanding a couple of months ago: http://mail.gnome.org/archives/gtk-app-devel-list/2007-October/msg00007.html Might be helpful. In my opinion, you should structure your program like this: - appstate should have a flag for "displaying rubberband line", plus start/end points - in your expose handler, first draw the background for the exposed area, then draw the rubberband liine on top - in your button-press handler, set the rubber band flag and note the start position - in mouse-motion, if rubberband is set and this is a button drag event, queue a draw for the old position of the rubber band line, update appstate with the new position, and queue a draw there too - in button-release, unset the rubber flag and queue a draw for the position of the line John _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list
