Since an StWidget now has children, it needs to allocate those children
properly. Defer to the currently installed layout manager, like Clutter
does.
Now that we have something that allocates children in St, to prevent
double allocations, we use clutter_actor_set_allocation rather than
chaining up to StWidget::allocate.
https://bugzilla.gnome.org/show_bug.cgi?id=670034
Since we want to paint children by default in StWidget, we need to
provide a way for custom subclasses to paint their CSS backgrounds
without painting children... introducing st_widget_paint_background.
Additionally, remove any custom paint/pick handlers added by subclasses
of StWidget that just painted their children. This will cause double
painting if left alone.
This also removes the hacky things that some subclasses of StBin did
to prevent their one child to be painted by StBin.
https://bugzilla.gnome.org/show_bug.cgi?id=670034
We can't get rid of the implementations in StContainer just yet,
as StContainer still keeps its own child list. But this should
lower the amount of code that has to be moved around when we
remove StContainer.
https://bugzilla.gnome.org/show_bug.cgi?id=670034
In particular, document that you can ignore the get-preferred-*
signals if and only if you have a fixed width/height specified by some
other means.
https://bugzilla.gnome.org/show_bug.cgi?id=657986
If a container is not clip-to-allocation, then its get_paint_volume()
needs to include the paint volumes of all of its children, since they
(or their children) may paint outside the container's allocation.
Also, if the superclass get_paint_volume() returns FALSE, then the
subclass should return FALSE too.
https://bugzilla.gnome.org/show_bug.cgi?id=655812
When changing a child's visibility with skip_paint(), the change
will not be visible until a redraw is triggered. Queue a redraw,
so that the function has an immediate effect.
https://bugzilla.gnome.org/show_bug.cgi?id=639461
In order to take advantage of clipped redraws (only redraw the
parts that actually changed), we have to inform clutter about
our paint_volume by implementing the get_paint_volume virtual
method.
As this feature had been added in in clutter 1.5.x we now require
that.
https://bugzilla.gnome.org/show_bug.cgi?id=630932
Add StWidget:can-focus, st_widget_navigate_focus(), and
st_container_get_focus_chain(), and implement as needed to allow
keyboard navigation of widgets.
https://bugzilla.gnome.org/show_bug.cgi?id=621671
Add StContainer, which implements the ClutterContainer interface based
on the container methods in st-private and make the existing containers
subclass it.
https://bugzilla.gnome.org/show_bug.cgi?id=613907
* Add missing chain-up for dispose and finalize methods
* ShellGenericContainer needs to destroy its children in dispose()
* Fix variable naming and excess casts in st_label_dispose()
https://bugzilla.gnome.org/show_bug.cgi?id=612511
The current way we keep track of skip-paint children is more
difficult than it needs to be, and can lead to subtle bugs.
(For one, the skip-paint state of a child is remembered
when it is removed then added back again, which is completely
unexpected.)
Instead of using weak references to track children, just remove
items from the skip-paint list by overriding the remove() virtual
function of the ClutterContainer interface.
The 'skip_paint' hash table is then destroyed in finalize rather than
dispose since it doesn't hold references to memory any more but just
passively tracks an attribute of the children that are currently in
the container.
https://bugzilla.gnome.org/show_bug.cgi?id=608848
Ideally we'd be able to override _paint, but given that we can't
at the moment, this method gives a way to implement containers
which don't happen to paint all of their children.
https://bugzilla.gnome.org/show_bug.cgi?id=603522
Subclass ClutterGroup (to avoid having to implement all of dispose,
raise, lower, add, etc.), and have it proxy the allocation requests
out into signals. We have to group up the two out parameters
into a struct unfortunately.
Included example code in the C file source for now.
