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ShadowEffect: Only use Gtk widgetry at the pain stage

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Avoid using Gtk at creation as the current display might not be existing.
This commit is contained in:
Corentin Noël 2023-06-13 18:47:41 +02:00 committed by Corentin Noël
parent bf3767967d
commit c26f0a0920
1 changed files with 10 additions and 4 deletions
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14
src/ShadowEffect.vala
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@ -18,18 +18,23 @@ public class Gala.ShadowEffect : Clutter.Effect {
// the sizes of the textures often repeat, especially for the background actor
// so we keep a cache to avoid creating the same texture all over again.
private static Gee.HashMap<string,Shadow> shadow_cache;
private static Gtk.StyleContext style_context;
// Delay the style context creation at render stage as Gtk need to access
// the current display.
private static GLib.Once<Gtk.StyleContext> _style_context;
class construct {
static construct {
shadow_cache = new Gee.HashMap<string,Shadow> ();
}
private static Gtk.StyleContext create_style_context () {
var style_path = new Gtk.WidgetPath ();
var id = style_path.append_type (typeof (Gtk.Window));
style_path.append_type (typeof (Gtk.Window));
style_context = new Gtk.StyleContext ();
var style_context = new Gtk.StyleContext ();
style_context.add_provider (Gala.Utils.get_gala_css (), Gtk.STYLE_PROVIDER_PRIORITY_FALLBACK);
style_context.add_class ("decoration");
style_context.set_path (style_path);
return style_context;
}
public int shadow_size { get; construct; }
@ -80,6 +85,7 @@ public class Gala.ShadowEffect : Clutter.Effect {
cr.set_operator (Cairo.Operator.OVER);
cr.save ();
cr.scale (scale_factor, scale_factor);
unowned var style_context = _style_context.once (create_style_context);
style_context.save ();
if (css_class != null) {
style_context.add_class (css_class);