rename mvc at lvc

1 files changed, 50 insertions, 0 deletions

diff --git a/lvc/widgets/gtk/wrappermap.py b/lvc/widgets/gtk/wrappermap.py
new file mode 100644
index 0000000..c2b2aad
--- /dev/null
+++ b/lvc/widgets/gtk/wrappermap.py
@@ -0,0 +1,50 @@
+# @Base: Miro - an RSS based video player application
+# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011
+# Participatory Culture Foundation
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# 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, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+#
+# In addition, as a special exception, the copyright holders give
+# permission to link the code of portions of this program with the OpenSSL
+# library.
+#
+# You must obey the GNU General Public License in all respects for all of
+# the code used other than OpenSSL. If you modify file(s) with this
+# exception, you may extend this exception to your version of the file(s),
+# but you are not obligated to do so. If you do not wish to do so, delete
+# this exception statement from your version. If you delete this exception
+# statement from all source files in the program, then also delete it here.
+
+""".wrappermap -- Map GTK Widgets to the Libre Widget
+that wraps them.
+"""
+
+import weakref
+
+# Maps gtk windows -> wrapper objects.  We use a weak references to prevent
+# circular references between the GTK widget and it's wrapper.  (Keeping a
+# reference to the GTK widget is fine, since if the wrapper is alive, the GTK
+# widget should be).
+widget_mapping = weakref.WeakValueDictionary()
+
+def wrapper(gtk_widget):
+    """Find the wrapper widget for a GTK widget."""
+    try:
+        return widget_mapping[gtk_widget]
+    except KeyError:
+        raise KeyError("Widget wrapper no longer exists")
+
+def add(gtk_widget, wrapper):
+    widget_mapping[gtk_widget] = wrapper