It was used to mark css properties that affect widgets with text, but it
caused unnecessary invalidations. E.g. 'color' was marked as
AFFECTS_TEXT but changing just the color of a label should not
automatically queue a resize, which is what the code in
gtk_widget_real_style_updated does.
Replace this flag with GTK_CSS_AFFECTS_TEXT_SIZE and
GTK_CSS_AFFECTS_TEXT_CLIP, which GtkWidget can use only if the widget
actually has text.
https://bugzilla.gnome.org/show_bug.cgi?id=791281
Instead of creating 2 pango layouts in every draw() and on in
_get_content_size (and calling into gettext twice in both cases), just
keep the layouts around and create them in only one place.
CSS min-width and min-height on the slider node fit this
perfectly. We still fall back to the slider-width and
slider-height style properties if the CSS properties are
not set.
Instead of having old and new style, now have a GtkCssStyleChange opaque
object that will compute the changes you are interested in for you.
This simplifies change signal handlers quite a bit and avoids lots of
repeated computation in every signal handler.
This file now uses round(), which was not available until C99, so include
fallback-c89.c instead of math.h, which includes math.h and does a fallback
implementation of round().
Make that variable go from 0.0 to 1.0 where 0.0 means inactive (slider
is on the left) and 1.0 means active (slider is on the right).
The math is simpler that way and most importantly the value is
independent of size.
handle_x always corresponds to the visible position of the handle,
which is where we want to start the animation. Without this, repeated
keyboard activation will not always animate.
Since we are storing positions here that depend on the allocation,
we need to update them in size-allocate. This fixes incorrect
positioning of the handle if the switch is active initially.
https://bugzilla.gnome.org/show_bug.cgi?id=734213
Mainly doing s/TARGET/BUBBLE/ on the fully ported widgets, but GtkTreeView
where the double click handler has moved to GTK_PHASE_TARGET so it runs
parallelly to the still existing event handlers.
Event controllers now auto-attach, and the GtkCapturePhase only determines
when are events dispatched, but all controllers are managed by the widget wrt
grabs.
All callers have been updated.
