Functional mesh view

shell/home/MeshView.py

@@ -1,15 +1,48 @@
+import random
+
 import goocanvas
 
+from sugar.canvas.IconItem import IconItem
+
+class ActivityItem(IconItem):
+	def __init__(self, activity, registry):
+		info = registry.get_activity(activity.get_type())
+		icon_name = info.get_icon()
+
+		IconItem.__init__(self, icon_name, 'green', 48)
+
+		self._activity = activity
+
+	def get_service(self):
+		return self._activity.get_service()
+
 class Model(goocanvas.CanvasModelSimple):
-	def __init__(self, data_model):
+	def __init__(self, data_model, registry):
 		goocanvas.CanvasModelSimple.__init__(self)
+		self._registry = registry
 
 		root = self.get_root_item()
 
 		item = goocanvas.Rect(width=1200, height=900,
-							  fill_color="#4f4f4f")
+							  fill_color="#d8d8d8")
 		root.add_child(item)
 
+		for activity in data_model:
+			self.add_activity(activity)
+
+		data_model.connect('activity-added', self.__activity_added_cb)
+
+	def add_activity(self, activity):
+		root = self.get_root_item()
+
+		item = ActivityItem(activity, self._registry)
+		item.set_property('x', random.random() * 1100)
+		item.set_property('y', random.random() * 800)
+		root.add_child(item)
+
+	def __activity_added_cb(self, data_model, activity):
+		self.add_activity(activity)	
+
 class MeshView(goocanvas.CanvasView):
 	def __init__(self, shell, data_model):
 		goocanvas.CanvasView.__init__(self)
@@ -17,8 +50,14 @@ class MeshView(goocanvas.CanvasView):
 
 		self.connect("item_view_created", self.__item_view_created_cb)
 
-		canvas_model = Model(data_model)
+		canvas_model = Model(data_model, shell.get_registry())
 		self.set_model(canvas_model)
 
+	def __activity_button_press_cb(self, view, target, event, service):
+		self._shell.join_activity(service)
+
 	def __item_view_created_cb(self, view, item_view, item):
-		pass
+		if isinstance(item, ActivityItem):
+			item_view.connect("button_press_event",
+							  self.__activity_button_press_cb,
+							  item.get_service())