http://blog.nolar.info/ru/windowlist-screenlet-patch/

WindowlistScreenlet.py.diff

--- WindowlistScreenlet.py.orig	2008-10-27 22:31:14.000000000 +0300
+++ WindowlistScreenlet.py	2008-10-27 23:52:14.000000000 +0300
@@ -28,6 +28,8 @@
 import screenlets
 from screenlets import DefaultMenuItem
 from screenlets.options import  BoolOption
+from screenlets.options import  StringOption
+from screenlets.options import  IntOption
 import cairo
 import gtk
 import wnck
@@ -49,10 +51,10 @@
 	__open_tasks	= []
 	__tooltips		= None		# tooltips object
 	__box 			= None		# content gtk.Box (HBox/Vbox)
-	vertical = False
-	left = False
 	# TODO: make user-definable settings of these
-	#direction = 1		# 1=right, 2=bottom (TODO)
+	orientation		= False # ideally: 0 - horiz, 1 - vert
+	direction		= "Middle" # ideally: 0 - middle, -1 - left/top, +1 - right/bottom
+	tasks_correction= 0
 	icon_size 		= 32
 	icon_spacing	= 15
 	#shadow_offset = 3
@@ -65,7 +67,7 @@
 	# constructor
 	def __init__ (self, text="", **keyword_args):
 		#call super (and don't make this a "Widget")
-		screenlets.Screenlet.__init__(self, width=40, height=40, 
+		screenlets.Screenlet.__init__(self, width=self.icon_size, height=self.icon_size, 
 			is_widget=False, is_sticky=True, **keyword_args)
 		# add HBox for children (TODO: optional: vbox)
 
@@ -80,12 +82,16 @@
 				"activation may not work"
 		
 		self.add_options_group('Options', 'Options ...')
-		self.add_option(BoolOption('Options','vertical', 
-			self.vertical, 'Expand Verticaly (restart req) ', 
-			'Expand window list verticaly'))
-		self.add_option(BoolOption('Options','left', 
-			self.left, 'Expand left (restart req)', 
-			'Expand window list left'))
+		self.add_option(BoolOption('Options','orientation', 
+			self.orientation, 'Vertical ', 
+			'Expand window list verticaly (check) or horizontally (unchecked).'))
+		self.add_option(StringOption('Options','direction', 
+			self.direction, 'Direction for expansion', 
+			'Where to expand when new windows appear, relatively to orientation',
+			["Back","Middle","Front"]))
+		self.add_option(IntOption('Options','tasks_correction', 
+			self.tasks_correction, 'HIDDEN', 'HIDDEN',
+			hidden=True))
 		# connect screen-signal handlers
 		screen = wnck.screen_get_default()
 		self.__active_win = screen.get_active_window()
@@ -96,6 +102,7 @@
 		#screen.connect("application_opened", self.test_event)
 		# screen.connect("window_stacking_changed", 
 		#	self.window_stacking_changed)
+		# fixing last quit-position
 		# TEST: place in lower left (TODO: make this an option)
 		#self.__dict__['x'] = 20
 		#self.y = screen.get_height() - 50
@@ -113,7 +120,7 @@
 	# TODO: don't use only window names for this check
 	def on_init (self):
 		print "Screenlet has been initialized."
-		if self.vertical == False:
+		if self.orientation == False:
 			self.__box = gtk.HBox()
 		else:
 			self.__box = gtk.VBox()
@@ -125,6 +132,19 @@
 			DefaultMenuItem.PROPERTIES | 
 			DefaultMenuItem.DELETE | DefaultMenuItem.QUIT | DefaultMenuItem.QUIT_ALL)
 
+		# fixing position according to last width/height (tasks_correction)
+		if not self.orientation:
+			if self.direction == 'Back':
+				self.x = self.x + self.tasks_correction * (self.icon_size + self.icon_spacing)
+			if self.direction == 'Middle':
+				self.x = self.x + self.tasks_correction * (self.icon_size + self.icon_spacing) / 2
+		if self.orientation:
+			if self.direction == 'Back':
+				self.y = self.y + self.tasks_correction * (self.icon_size + self.icon_spacing)
+			if self.direction == 'Middle':
+				self.y = self.y + self.tasks_correction * (self.icon_size + self.icon_spacing) / 2
+		self.tasks_correction = 0
+
 	def check_window_name (self, name):
 		if name[-10:] != "Screenlets" and name[-12:] != "Screenlet.py" \
 			and name[-9:] != "Screenlet" and name != "Desktop":
@@ -174,6 +194,7 @@
 		self.__tooltips.set_tip(iw, wnckwin.get_name())
 		# add wnckwin/taskicon to open apps list
 		self.__open_tasks.append((wnckwin, iw ))
+		self.tasks_correction = len(self.__open_tasks)
 	
 	# remove a task - removes TaskIconWidget
 	def remove_task (self, wnckwin):
@@ -185,6 +206,7 @@
 				break
 		if tsk:
 			self.__open_tasks.remove(t)
+			self.tasks_correction = len(self.__open_tasks)
 			return True
 		return False
 	
@@ -263,20 +285,20 @@
 			# add new taskicon for the window
 			self.add_task(wnckwin)
 			# set size to correctly draw shape mask
-			if self.vertical:
-				self.height = len(self.__open_tasks) * (self.icon_size + 
-					self.icon_spacing)
-				self.width = 40
-				if self.left :
-					self.y = self.y - (self.icon_size + 
-					self.icon_spacing)
+			if self.orientation:
+				self.height = len(self.__open_tasks) * (self.icon_size + self.icon_spacing)
+				self.width = self.icon_spacing
+				if self.direction == 'Back' :
+					self.y = self.y - (self.icon_size + self.icon_spacing)
+				if self.direction == 'Middle' :
+					self.y = self.y - (self.icon_size + self.icon_spacing) / 2
 			else:
-				self.width = len(self.__open_tasks) * (self.icon_size + 
-					self.icon_spacing)
-				self.height = 40
-				if self.left and self.has_started and self.window.window.is_visible():
-					self.x = self.x - (self.icon_size + 
-					self.icon_spacing)
+				self.width = len(self.__open_tasks) * (self.icon_size + self.icon_spacing)
+				self.height = self.icon_spacing
+				if self.direction == 'Back' and self.has_started and self.window.window.is_visible():
+					self.x = self.x - (self.icon_size + self.icon_spacing)
+				if self.direction == 'Middle' and self.has_started and self.window.window.is_visible():
+					self.x = self.x - (self.icon_size + self.icon_spacing) / 2
 			self.update_shape()
 	
 	# called when a wnckwin is closed
@@ -284,26 +306,21 @@
 		#print "window_closed: "+str(window)
 		if self.remove_task(wnckwin):
 			# set size to correctly draw shape mask
-			if self.vertical:
-				self.height = len(self.__open_tasks) * (self.icon_size + 
-					self.icon_spacing)
-				self.width = 40
-				if self.left and self.has_started and self.window.window.is_visible():
-					self.y = self.y + (self.icon_size + 
-					self.icon_spacing)
+			if self.orientation:
+				self.height = len(self.__open_tasks) * (self.icon_size + self.icon_spacing)
+				self.width = self.icon_size
+				if self.direction == 'Back' and self.has_started and self.window.window.is_visible():
+					self.y = self.y + (self.icon_size + self.icon_spacing)
+				if self.direction == 'Middle' and self.has_started and self.window.window.is_visible():
+					self.y = self.y + (self.icon_size + self.icon_spacing) / 2
 			else:
-				self.width = len(self.__open_tasks) * (self.icon_size + 
-					self.icon_spacing)
-				self.height = 40
-				if self.left and self.has_started and self.window.window.is_visible():
-					self.x = self.x + (self.icon_size + 
-					self.icon_spacing)
+				self.width = len(self.__open_tasks) * (self.icon_size + self.icon_spacing)
+				self.height = self.icon_size
+				if self.direction == 'Back' and self.has_started and self.window.window.is_visible():
+					self.x = self.x + (self.icon_size + self.icon_spacing)
+				if self.direction == 'Middle' and self.has_started and self.window.window.is_visible():
+					self.x = self.x + (self.icon_size + self.icon_spacing) / 2
 			self.update_shape()
-	def on_quit(self):
-		if self.left:
-			if not self.vertical : self.x = self.x + self.width
-			else:self.y = self.y + self.height 
-		print 'quiting'
 	# a window's state changed
 	def window_state_changed (self, wnckwin, changed, new_state):
 		#print "state_changed: "+str(new_state)