GNOME Bugzilla – Bug 579804
Implement GtkCellRendererImage
Last modified: 2011-01-03 22:54:56 UTC
While GtkImageMenuItem can show any GtkImage and will adapt to image changes automatically (since it delegates drawing to GtkImage), GtkComboBox currently only supports showing a Pixbuf since there's only GtkCellRendererPixbuf, no GtkCellRendererImage. Having the latter would allow us to use the same cairo-drawn images we use for menu items inside combo boxes as well.
Seems like the bug filing process is a bit buggy itself. I definitely chose gtk+, not alacarte. Fixing.
You can use any kind of custom cell renderer in a combo box, which will allow things like cairo drawing.