[Todo-manager-cvs] todo-manager objectlistbox.py,1.1.2.18,1.1.2.19

[<cl...@us...>]

Update of /cvsroot/todo-manager/todo-manager
In directory usw-pr-cvs1:/tmp/cvs-serv1343

Modified Files:
      Tag: dev-bronze
	objectlistbox.py 
Log Message:
* Draw caching functions
  Suspend drawing while large changes are made to the list
  and re-enable it afterwards


Index: objectlistbox.py
===================================================================
RCS file: /cvsroot/todo-manager/todo-manager/Attic/objectlistbox.py,v
retrieving revision 1.1.2.18
retrieving revision 1.1.2.19
diff -u -d -r1.1.2.18 -r1.1.2.19
--- objectlistbox.py	1 Jun 2002 23:25:54 -0000	1.1.2.18
+++ objectlistbox.py	18 Jun 2002 17:11:56 -0000	1.1.2.19
@@ -44,6 +44,7 @@
 		self.__foreground = kw["foreground"]
 		self.__dragable = FALSE
 		self.__moved_object = FALSE	# So the list isn't updated unless it needs to be
+		self.__draw_cache = FALSE	# If this is TRUE then the list won't auto-update
 
 		self.__item_leftclick_command = None
 		self.__item_leftdrag_command = None
@@ -195,7 +196,8 @@
 		else:
 			self.__objects[row][column] = obj
 
-		self.draw()
+		if not self.__draw_cache:
+			self.draw()
 
 	def insert_object(self, row, column, function):
 		if row == END: row = self.count()
@@ -216,7 +218,8 @@
 		else:
 			self.__objects[row][column] = obj
 
-		self.draw()
+		if not self.__draw_cache:
+			self.draw()
 
 	def get_column_text(self, row, column):
 		try:
@@ -247,7 +250,8 @@
 		else:		
 			del self.__objects[index]
 
-		self.draw()
+		if not self.__draw_cache:
+			self.draw()
 
 	def curselection(self):
 		return self.__cursel
@@ -270,6 +274,16 @@
 
 	def set_item_rightclick(self, command):
 		self.__item_rightclick_command = command
+
+	def start_draw_cache(self):
+		"""Keep the list from updating automatically.
+		This is good to use when you have a large group of items to add to the list."""
+		self.__draw_cache = TRUE
+
+	def end_draw_cache(self):
+		"""End the draw cache and update the list."""
+		self.draw()
+		self.__draw_cache = FALSE
 
 	def draw(self):
 		# ...and the fun begins