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from Renderer import Renderer
from enigma import eCanvas, eRect, gRGB
class Canvas(Renderer):
GUI_WIDGET = eCanvas
def __init__(self):
Renderer.__init__(self)
self.sequence = None
self.draw_count = 0
def pull_updates(self):
if self.instance is None:
return
# do an incremental update
list = self.source.drawlist
if list is None:
return
# if the lists sequence count changed, re-start from begin
if list[0] != self.sequence:
self.sequence = list[0]
self.draw_count = 0
self.draw(list[1][self.draw_count:])
self.draw_count = len(list[1])
def draw(self, list):
for l in list:
print "drawing ..", l
self.instance.fillRect(eRect(l[1], l[2], l[3], l[4]), gRGB(l[5]))
def changed(self, what):
self.pull_updates()
def postWidgetCreate(self, instance):
self.sequence = None
self.pull_updates()
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