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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, registry):
goocanvas.CanvasModelSimple.__init__(self)
self._registry = registry
root = self.get_root_item()
item = goocanvas.Rect(width=1200, height=900,
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)
self._shell = shell
self.connect("item_view_created", self.__item_view_created_cb)
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):
if isinstance(item, ActivityItem):
item_view.connect("button_press_event",
self.__activity_button_press_cb,
item.get_service())
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