Thanks Tadej. I spent some time reading cairo document and tried what you suggested. I store a cairo surface and use cario_paint to redraw the surface. The result, however, is the same as I did with gdk_draw_drawable: the background is scribled. The problem might be that the drawing surface is not properly set to transparent. Do you know how to do that?
Bests, - Chris On Mon, Feb 28, 2011 at 9:34 AM, Tadej Borovšak <tadeb...@gmail.com> wrote: > Hello. > >> I'm new to gtk programming so this might be a very dummy question. I >> use a DrawingArea to draw a map with three layers: the background map, >> the legend window, and app data. Since the legend layer does not >> change often, can I store it in a pixmap and simply copy it rather >> than redraw it every time the map and app data change? > > I would suggest that you use cairo to do all of the drawing. Then you > can "store" your drawings onto cairo surface and paint it when needed. > > Cheers, > Tadej > > > -- > Tadej Borovšak > tadeboro.blogspot.com > tadeb...@gmail.com > tadej.borov...@gmail.com > _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
