st/theme-node-drawing: Factor in border radius in update_resources()
The reduced border radius from st_theme_node_reduce_border_radius() depends
on the allocation size, and when it changes, has_large_corners can change.
has_large_corners is used to determine whether to pre-render using cairo,
so that means a change to the allocation size can influence whether the
pre-render using cairo should happen or not.
On changes to the allocation size we don't want to call render_resources()
though, but just update_resources() instead. And since we know now that
changes to the allocation size might cause pre-rendering to get enabled
or disabled, we need to do the "should pre-render" checks in
update_resources(), too.
So factor out those "should pre-render" checks into a new function
st_theme_node_maybe_prerender_background(), and then call that function from
both render_resources() and update_resources().
This fixes rendering artifacts with borders or rounded corners after changes
to the actor size.
projects / gnome-shell.git / commit