add clear() method to Screen classes, closes #17release-0.9.7.2

--HG--
extra : convert_revision : 507a323a1f45de1fd01b35a930d8d04f37bb9c1c

1 files changed, 11 insertions, 0 deletions

diff --git a/urwid/web_display.py b/urwid/web_display.py
index 522c713..c9da8ca 100755
--- a/urwid/web_display.py
+++ b/urwid/web_display.py
@@ -809,6 +809,17 @@ class Screen:
 		
 		signal.alarm( ALARM_DELAY )
 	
+
+	def clear(self):
+		"""
+		Force the screen to be completely repainted on the next
+		call to draw_screen().
+
+		(does nothing for web_display)
+		"""
+		pass
+
+
 	def _fork_child(self):
 		"""
 		Fork a child to run CGI disconnected for polling update method.