Now when the GtkCellAreaBox receives key events it cycles
the currently focused cell to the next focusable cell in the box
while observing the navigation direction, it then emits "focus-leave"
when hitting the boundries of the area.
Now:
- The current edit cell and editable widget in use can be fetched
with properties and accessors
- gtk_cell_area_activate_cell() handles bookkeeping of the currently
edited cell, starting the editing of a cell, activating a cell etc
- Exported signals are available on GtkCellArea: "editing-started",
"editing-canceled", "editing-done", "remove-editable".
- Upon receiving GDK_KEY_Escape current editing gets canceled.
Windows 7 is managing status icon visibility across process lifetime,
which did not work with GTK+ create icons. Apparently the mechanism
does not require use of new API (like suggested by MSDN), but it is
enough to give a "unique" tooltip at creation time.
Formerly this initial tooltip was not set at all, later setting via
gtk_status_icon_set_tooltip_text() is not enough, but luckily
different follow-up tooltips don't disturb the intended behavior.
(cherry picked from commit ae0544c636c72753098b698e4951897c609a75b6)
(cherry picked from commit 8a9d458bafe368335d0acca2c324f878ee64463f)
- Added vfunc to get the allocation of a cell inside an area
- Superclass GtkCellArea handles activation of focused cells
by handling key events (as well as editing of editable cells)
- Added signal "editing-started" to GtkCellArea to signal that
editing has started (generally signaled from inside event handling)
- Added properties "focus-cell" and "edited-cell"
CSS3 defines a somewhat odd syntax for rgba() colors - the rgb values
are integers from 0 to 255 or percentages and the a value is a
float from 0 to 1. To avoid increasing the total amount of confusion
in the world, make gdk_rgb_to_string() and gdk_rgb_parse() follow
this syntax rather than using floats for r, g, and b.
https://bugzilla.gnome.org/show_bug.cgi?id=633762
The state of expanded cells must come from the view, since these states
can vary across views accessing the same model (also "finished up" the
applying of attributes code).
