© 2004
Canonical Ltd.
•
Terms of use
•
Data privacy
•
Contact Launchpad Support
•
Blog
•
Careers
•
System status
•
bbfa235
(Get the code!)
I'm sure there is some obvious reason why this won't work, but:
Ok, if I've understood the basics correctly the widgets first get drawn to an X buffer by the native theme. Then some magic is done to extract transparency (painting on black and then white). Then this transparent version is copied on to the cairo surface, which is shown.
How about first rendering the page to the point where the background of the widget is known. Then copying that background to the X buffer and having the theme code draw the widget on to that. When the drawing is done, the box can again be copied back to the original cairo surface.