If the style didn't include symbolic colors for either success,
warning or error, gtk_icon_info_load_symbolic_for_style() would crash.
Instead, make sure we don't try to use the colors if they're not
available, and fallback on default colors inside
_gtk_icon_info_load_symbolic_internal().
Previously any X error from XFixesChangeSaveSet() was being eaten
by the subsequent error trap when sending a client message. With
asynchronous error traps, that side effect no longer occurs, so
we need to add a proper error trap around the call to
XFixesChangeSaveSet().
https://bugzilla.gnome.org/show_bug.cgi?id=633274
This should be implemented as propery height-for-width by
the treeview-refactor branch. This commit includes a FIXME
comment that scroll adjustments should not be updated from
inside size requests but only after receiving an allocation.
Added the following to GtkCellAreaBox:
- GtkCellAreaBox:spacing property defines spacing between cells
- GtkCellAreaBox:align-cells property defines whether cells should
be aligned with cells in adjacent rows.
- Implementations for get_preferred_width / get_preferred_height
- Implementations for get_preferred_height_for_width and the other
when the box is oriented in the easy way (i.e. height_for_width()
implemented for a vertical box, no virtual allocations done yet).
The interaction between this class and GtkCellAreaBox could
use some optimization, maybe the cells and their sizes should
be returned as a list and iterated over at the same time as
requesting sizes instead of the hash table approach currently
taken, however the code is clean this way for now.
