This avoids a lot of overhead in the common case where a signal
is not connected and we're just using the class vfunc (which is true
for all in-libgtk widgets). Additionally it makes backtraces in
debuggers and profiles much much nicer to look at.
https://bugzilla.gnome.org/show_bug.cgi?id=754986
Merge it into GtkWidgetPrivate. In my measurements, about half
of all widgets have a non-default auxinfo struct, and we use this
information in size allocation, so it is nice to avoid the gdata
overhead.
We only use widget paths for a few widgets nowadays (notebook,
treeview, pathbar, combobox), so we can save some space by
not having this field in GtkWidgetPrivate.
The hash table is only accessed at creation and destruction time,
and many widgets don't use templates at all, so no need to have
this permanently occupying space.
This reverts commit 3eacfa88f2.
Apart from the patch not being correct, we don't want to expose private
structures in header files if we can avoid it.
And this type-checking overhead is not an optimization that is even
measurable.
https://bugzilla.gnome.org/show_bug.cgi?id=754932
The logic here is that G_ENABLE_DEBUG is for compiling out
debug spew that can be triggered at runtime with the GTK_DEBUG
environment variable, while G_ENABLE_CONSISTENCY_CHECKS is for
consistency checks that are applied unconditionally.
For all other events, we run the bubble phase deep in the specific
::motion/button-press/release/touch handlers.
For touchpad events, it doesn't make sense to use GtkWidgetClass
slots if the intended way to deal with these are gestures, so we
run the bubble phase directly from gtk_widget_event_internal().
Properties like transition-property might change when hovering over
something, even if the property itself does not change. These properties
don't affect drawing, so don't queue redraws for them.
This allows a widget to override global font_options, such as hinting and
subpixel order. The widget's PangoContext is updated when this is set.
Some update code from gtk_widget_update_pango_context was moved to
update_pango_context so that gtk_widget_update_pango_context runs it.
http://bugzilla.gnome.org/show_bug.cgi?id=751677
Also make them more scary so people really really don't use it as a
random knob when trying to make things go fast.
//bugzilla.gnome.org/show_bug.cgi?id=750505
Instead of issuing g_warning, fill the provided GError.
This lets us test this error handling, and is the right
thing to do. Use the new GtkBuilder helpers and
g_markup_collect_attributes to do so.
When recomputing CSS, we need a correct widget path in the fallback mode
where we're still using widget paths.
So we need to invalidate it everytime it actually changes, and not just
when emitting the style-updated signal.
Fixes css-match-regions reftest.
... and pass it to the API that computes new styles.
A special timestamp of 0 means "please don't animate" and is used when
no frame clock is available for a node.
We don't want to add the current classes to the widget path - which
might potentially be different after a gtk_style_context_save() - but
the root node's ones. So what better thing to do than actually using the
root node?
