On Sun, 2010-11-14 at 11:17 +0000, James Morris wrote: > On 13 November 2010 22:18, N James Bridge <ja...@xmas.demon.co.uk> wrote: > > I am hoping someone will have the time to look at this. I have been > > developing a gtk/cairo program to draw views of the Mandelbrot set. ... > > I am using gtk2-2.22.0-1.fc14.1.x86_64, cairo-1.10.0-2.fc14.x86_64 and > > gcc-4.5.1-4.fc14.x86_64 > > > > So, first: have I done something wrong (probably in draw_iter())? > > I can't see anything wrong exactly. I tried explicitly initializing z > in draw_iter with z.x = cc.x; z.y = cc.y, and used > gtk_widget_queue_draw instead of gdk_window_invalidate_rect but both > of these made no difference. I also added some printf statements to > check what's happening. For the values of cc, the code never returns > in the first for loop, and the values of z.x and z.y after both loops > never changes other than when cc does. In other words, the drawing may > change, but z.x and z.y after both loops does not. The next thing I'd > try would be to run it through valgrind but I need to reboot to do > that as valgrind is unusable on my current system. > > james. > Thanks for input. I assume you did see the same error in drawing - some areas inside the drawing come out solid black?
I will have to look up valgrind. All of this is a big learning exercise! NJB _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
