Re: GtkProgressBar ignoring gtk_widget_queue_draw()

[Richard Stellingwerff <remenic gmail com>]

Owen Taylor wrote:
> Well, you are looking to do something awful anyways (call
> gtk_widget_queue_draw() out of a theme engine), so given that, you
> could investigate the further awfulness of doing:
>
>  GTK_PROGRESS_GET_CLASS(progressbar)->paint (GTK_PROGRESS(progressbar));
>  gtk_widget_queue_draw (progressbar);

After checking the source code, I noticed that the 
gtk_progress_changed() function queues a resize using 
gtk_widget_queue_resize(). Even though the size never changes, it does 
seem to force a redraw. I did the same in my timer, and it works fine :)

> I think you are going to run into the problem that apps frequently
> put up a progress bar and only run the main loop occasioanlly to
> update the progress bar when the application changes the value ...
> that is, you aren't going to get a nice smooth animation.

I've tried a bunch of applications so far, and the animation itself is 
quite smooth. The code is in Clearlooks CVS right now, in case people 
want to try it out. I am currently working on fixing RTL support (almost 
done with that).