def duplicate_active(self):
name = '%s copy' % self.active.name
copy = Layer(name, None, self.active.width, self.active.height)
copy.pixbuf = self.active.pixbuf.copy()
copy.update_pointer()
copy.xpos = self.active.xpos
copy.ypos = self.active.ypos
self.childs.append(copy)
self.set_active(copy)
copy.id = self.count
self.count += 1
