Re: Minutes of the GTK+ Team Meeting - 2010-12-14

[Matthias Clasen <matthias clasen gmail com>]

Tristan,

another thing (that I believe Cosimo already pointed out) is that the
new cell area code seems to not quite get interaction between cell
data functions and size allocation right.

You can see the resulting breakage in testappchooser. The treeview in
the appchooser uses a separate cell renderer for the heading text, and
uses a cell data function to make it visible only for rows that are
supposed to be headings (this is a very common pattern, expect many
things to break in similar ways). After the cellarea merge, the
heading cell renderer seems to always get its size reserved, even in
rows where it is invisible.