It's not a GtkCssGadget anymore, it doesn't have any properties or
signals either and it's not public. Further, its lifetime is very clear
the way it's being used inside GTK+.
We do no longer bind textures to a renderer, instead they are a way for
applications to provide texture data.
For now, that's it. We've reverted to uploading it from scratch every
frame.
After checking for rendered_surface, the call to gtk_css_node_get_style
can invalidate the style and result in rendered_surface being set to
NULL. This was result in some icon views appearing blank on
Endless OS on armv7hl, and this error:
Gtk-CRITICAL **: gtk_css_style_render_icon_surface: assertion 'surface != NULL' failed
Call gtk_css_node_get_style earlier to ensure we always pass a valid
surface to gtk_css_style_render_icon_surface.
https://bugzilla.gnome.org/show_bug.cgi?id=765649https://phabricator.endlessm.com/T13524
When clearing the icon helper, we need to invalidate it. Otherwise the
previous icon keeps lingering along.
This is not relevant inside gtkiconhelper.c where other code causes the
invalidation, but happens when external code calls
_gtk_icon_helper_clear().
https://bugzilla.gnome.org/show_bug.cgi?id=765066
It is clearly not the intention that the baseline of icons is at
the very top. The visible effect of this was that spin buttons were
higher than expeted, because the box gadget was trying to line up
the baseline of the text with the top of the buttons, forcing extra
height to be requested.
Just don't set a baseline at all for now.
Gadgets don't connect to style-changed for widget nodes, and
GtkImage uses its widget node for the icon helper. The visible
effect of this is that symbolic icons don't change color when
switching to the dark variant of Adwaita.
Fix this by manually invalidating the icon helper.
Transient nodes should not propagate style-changed signals
that can cause widgets to get reallocated. This was causing
treeviews and iconviews with pixbuf cells to be constantly
resized and redrawn.
When things change in the iconhelper, queue a resize on the owner widget
so that it automatically resizes.
Only do this for iconhelpers that are used as gadgets though, not for
temporary helpers - and to check this, check if the node is transient.
