We are using floating point for coordinates
everywhere now, so be consistent here.
This commit also changes the implementation of
gtk_fixed_get_child_position to work with
non-translation child transforms.
This was only living in gtkcontainer.c for historic
reasons. Move it closer to where it belongs, and
rename it from 'idle' to 'layout', since it is
really about the layout phase of the frame clock,
nowadays.
This is mostly convenience API around GtkFixedLayoutChild, but it should
push people towards using transformations with GtkFixed instead of just
using fixed positioning.
The need of a specialised fixed layout container that can be placed into
a GtkScrolledWindow ceased to exist once GtkScrolledWindow gained the
ability to automatically interpose a GtkViewport when adding a child
that does not implement GtkScrollable.
All the other justifications that led to the existence of GtkLayout as a
separate widget from GtkFixed have been largely made irrelevant in the
20 years since its inception.
This is an automated change doing these command:
git sed -f g gtk_widget_set_has_window gtk_widget_set_has_surface
git sed -f g gtk_widget_get_has_window gtk_widget_get_has_surface
git sed -f g gtk_widget_set_parent_window gtk_widget_set_parent_surface
git sed -f g gtk_widget_get_parent_window gtk_widget_get_parent_surface
git sed -f g gtk_widget_set_window gtk_widget_set_surface
git sed -f g gtk_widget_get_window gtk_widget_get_surface
git sed -f g gtk_widget_register_window gtk_widget_register_surface
git sed -f g gtk_widget_unregister_window gtk_widget_unregister_surface
git checkout NEWS*
If the call to set_parent() failed, we were still adding the child to
the internal list of children, despite that it was not really added.
That meant we could later try to do invalid stuff with that non-child.
Fix that by asserting and giving up if the child that the user is
attempting to add is already parented.
https://bugzilla.gnome.org/show_bug.cgi?id=701296
• Add GtkLayout as a @See_also since it includes fixed-pos functionality
• Drop mention of the long-gone Linux framebuffer port
• Explain how to work around the problems with RTL text
Since setting a clip is mandatory for almost all widgets, we can as well
change the size-allocate signature to include a out_clip parameter, just
like GtkCssGadget did. And since we now always propagate baselines, we
might as well pass that one on to size-allocate.
This way we can also make sure to transform the clip returned from
size-allocate to parent-coordinates, i.e. the same coordinate space
priv->allocation is in.
We now rely on toplevels receiving and forwarding all the events
the windowing should be able to handle. Event masks are no longer a
way to determine whether an event is deliverable ot a widget.
Events will always be delivered in the three captured/target/bubbled
phases, widgets can now just attach GtkEventControllers and let those
handle the events.
Add a new ::measure vfunc similar to GtkCssGadget's that widget
implementations have to override instead of the old get_preferred_width,
get_preferred_height, get_preferred_width_for_height,
get_preferred_height_for_width and
get_preferred_height_and_baseline_for_width.
And with it, gtk_widget_get_visual() and gtk_widget_set_visual() are
gone.
We now always use the RGBA visual (if available) and otherwise fall back
to the system visual.
And wrap it with G_GNUC_IGNORE_DEPRECATIONS.
Unfortunately we can't stop rendering the background altogether here.
Also, gtk_style_context_set_background() should really be called every
time the style is updated. Fix that.
Restore the drawing order in GtkFixed to what it was in 3.8. With the
GDK drawing changes this will not be correct in some cases (un-windowed
children can now overlap windowed children and native children overlap
everything), but fixes Eclipse drawing.
https://bugzilla.gnome.org/show_bug.cgi?id=725089
This reverts commit ba6128f8af.
This change breaks emacs drawing entirely. Since GtkFixed is
somewhat of a legacy widget anyway, lets just not bother doing
this modernization there, at least for now.
This replaces the previously hardcoded calls to gdk_window_set_user_data,
and also lets us track which windows are a part of a widget. Old code
should continue working as is, but new features that require the
windows may not work perfectly.
We need this for the transparent widget support to work, as we need
to specially mark the windows of child widgets.
https://bugzilla.gnome.org/show_bug.cgi?id=687842
b3f6f67c changed the loop from while() to for() in gtk_fixed_forall(),
but that's wrong since the callback can have side-effects on the list,
in case the current child gets removed. And that's the case when the
widget is destroyed.
Patch by Vincent Untz
https://bugzilla.gnome.org/show_bug.cgi?id=641196
