Custom Drawables?

[Peter Zhelezniakov <peterz rin ru>]

Hi,

I'm fairly new to GTK so excuse me for asking potentially lame 
questions. Did not find anything in the archive, however.

My problem is: I want my GTK code (basically calls to 
gtk_paint_whatever()) to paint on an external drawable rather than 
GdkWindow. (This external drawable is actually a Java java.awt.Graphics 
object.) This is, i need to export a Java Graphics object into my GTK 
code as a GdkDrawable (and also probably as a GdkGC too). So i'm seeking 
advice as for writing a custom GdkDrawable and/or GdkGC backed by an 
external object it will delegate to.

I could of course draw to a GdkDrawable then copy into a GdkPixbuf then 
transfer to my Graphics object, but i see this as a suboptimal solution 
(but may be wrong.)

So if there are any docs, code samples, real projects doing something 
similar etc, could you please share pointers with me. Any piece of 
knowledge will be helpful.

Thanks!
--
Peter                           peterz at rin dot ru