1 files changed, 46 insertions, 0 deletions
diff --git a/src/fadable-box.vala b/src/fadable-box.vala
new file mode 100644
index 0000000..c287d21
--- /dev/null
+++ b/src/fadable-box.vala
@@ -0,0 +1,46 @@
+/* -*- Mode: Vala; indent-tabs-mode: nil; tab-width: 4 -*-
+ *
+ * Copyright (C) 2011,2012 Canonical Ltd
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authored by: Michael Terry <michael.terry@canonical.com>
+ */
+
+public class FadableBox : Gtk.EventBox, Fadable
+{
+    public signal void fade_done ();
+
+    protected FadeTracker fade_tracker { get; protected set; }
+
+    construct
+    {
+        visible_window = false;
+        fade_tracker = new FadeTracker (this);
+        fade_tracker.done.connect (() => { fade_done (); });
+    }
+
+    protected virtual void draw_full_alpha (Cairo.Context c)
+    {
+        base.draw (c);
+    }
+
+    public override bool draw (Cairo.Context c)
+    {
+        c.push_group ();
+        draw_full_alpha (c);
+        c.pop_group_to_source ();
+        c.paint_with_alpha (fade_tracker.alpha);
+        return false;
+    }
+}