Compositing with GDK/GTK

["Donny Viszneki" <donny viszneki gmail com>]

Hi all,

Certain parts of my application's GUI contain logical widget-like
components, but which are different from GTK widgets (or my limited
understanding of them) in that they do not fit well into a
hierarchical model for several reasons:

- Widget positioning is totally independent of the positions of other widgets
- Widgets may overlap each other and are transluscent
- Notional "space" within my GtkDrawingArea widget is also an
interactive GUI component

For this reason I sought to locate or implement generic graphical
compositing functionality for GDK. I started thinking about how I
might design such a system, and then decided that GDK probably has
some of the facilities that I need.

In particular, the GdkDrawableClass data structure. I would really
like to find documentation for how to implement my own
GdkDrawableClasses, but I can't find documentation anywhere, and while
the header file is very readable, it doesn't contain any useful
comments.

Can anyone help?

-- 
http://www.socsurveys.org/
http://blogger.socsurveys.org/
http://del.icio.us/hdon
http://hdon.soup.io/