[gcompris/gcomprixogoo] added support for delete key shortcut when an item is selected.

[Bruno Coudoin <bcoudoin src gnome org>]

commit 6f7a04ad55c342c6137a06259f27fee8b21e0cd7
Author: Bruno Coudoin <bruno coudoin free fr>
Date:   Mon Nov 2 07:16:15 2009 +0100

    added support for delete key shortcut when an item is selected.

 src/anim-activity/AnimItem.py |    5 +++++
 src/anim-activity/anim.py     |   12 ++++++++----
 2 files changed, 13 insertions(+), 4 deletions(-)
---
diff --git a/src/anim-activity/AnimItem.py b/src/anim-activity/AnimItem.py
index b6bf7ea..48e4de9 100644
--- a/src/anim-activity/AnimItem.py
+++ b/src/anim-activity/AnimItem.py
@@ -61,6 +61,11 @@ class AnimItem:
         self.old_y = 0
 
 
+    # Return the type name of the managed object
+    def type_name(self):
+        return (gobject.type_name(self.item))
+
+
     # Sadly matrix are not saved by pickle, don't know why
     # excactly. This code transform the matrix as a regular
     # python list.
diff --git a/src/anim-activity/anim.py b/src/anim-activity/anim.py
index 6a59b14..791a771 100644
--- a/src/anim-activity/anim.py
+++ b/src/anim-activity/anim.py
@@ -264,12 +264,16 @@ class Gcompris_anim:
           (keyval == gtk.keysyms.Num_Lock)):
       return False
 
-    if ( (not self.selected) or
-         (gobject.type_name(self.selected.get_child(0)) != "GooCanvasText")
-         ):
-      # No Text object selected
+    if (not self.selected):
       return False
 
+    if (self.selected.type_name() != "GooCanvasText"):
+      # Process shortcuts on non text items
+      if ((keyval == gtk.keysyms.BackSpace) or
+          (keyval == gtk.keysyms.Delete)):
+        self.selected.delete()
+      return True
+
     textItem = self.selected.get_child(0)
     if (not self.last_commit):
       oldtext = textItem.get_property('text').decode('UTF-8')