Some work to implement the activity bar

shell/ActivityRegistry.py

@@ -8,6 +8,7 @@ class ActivityModule:
 	
 	def __init__(self, name, activity_id, directory):
 		self._name = name
+		self._icon = None
 		self._id = activity_id
 		self._directory = directory
 		self._show_launcher = False	
@@ -20,6 +21,14 @@ class ActivityModule:
 		"""Get the activity identifier"""
 		return self._id
 
+	def get_icon(self):
+		"""Get the activity icon name"""
+		return self._icon
+
+	def set_icon(self, icon):
+		"""Set the activity icon name"""
+		self._icon = icon
+
 	def get_directory(self):
 		"""Get the path to activity directory."""
 		return self._directory
@@ -97,6 +106,9 @@ class ActivityRegistry:
 		if cp.has_option('Activity', 'show_launcher'):
 			module.set_show_launcher(True)
 
+		if cp.has_option('Activity', 'icon'):
+			module.set_icon(cp.get('Activity', 'icon'))
+
 		module.set_default_type(default_type)
 
 		return True

shell/HomeWindow.py

@@ -3,6 +3,19 @@ import goocanvas
 
 from sugar.canvas.IconItem import IconItem
 
+class ActivityBar(goocanvas.Group):
+	def __init__(self, registry):
+		goocanvas.Group.__init__(self)
+
+		for activity in registry.list_activities():
+			if activity.get_show_launcher():
+				self.add_activity(activity)
+
+	def add_activity(self, activity):
+		item = IconItem(icon_name=activity.get_icon(),
+						color='white', width=42, height=42)
+		self.add_child(item)
+
 class Background(goocanvas.Group):
 	def __init__(self):
 		goocanvas.Group.__init__(self)
@@ -22,7 +35,7 @@ class Background(goocanvas.Group):
 		self.add_child(item)
 
 class Model(goocanvas.CanvasModelSimple):
-	def __init__(self):
+	def __init__(self, shell):
 		goocanvas.CanvasModelSimple.__init__(self)
 
 		root = self.get_root_item()
@@ -30,6 +43,9 @@ class Model(goocanvas.CanvasModelSimple):
 		background = Background()
 		root.add_child(background)
 
+		activity_bar = ActivityBar(shell.get_registry())
+		root.add_child(activity_bar)
+
 class HomeWindow(gtk.Window):
 	def __init__(self, shell):
 		gtk.Window.__init__(self)
@@ -39,7 +55,7 @@ class HomeWindow(gtk.Window):
 		self.connect('realize', self.__realize_cb)
 
 		canvas = goocanvas.CanvasView()
-		canvas_model = Model()
+		canvas_model = Model(shell)
 		canvas.set_bounds(0, 0, 1200, 900)
 		canvas.set_scale(float(800) / float(1200))
 		canvas.set_size_request(800, 600)