def __init__(self, app=None, canvas=None, scene=None):
super(SceneController, self).__init__()
self.canvas = canvas
self.scene = scene
self.app = app
self.fixtures = []
self._max_pixels = 0
self._output_buffer = None
self.show_center = False
self._strand_keys = list()
self._color_mode = self.app.config.get("color_mode")
self._frame_data = {}
self.strand_data = {}
self.times = []
self.frame_start_time = 0.0
if self.canvas is not None:
self.init_view()
self._fixture_lookup_cache = self.scene.fixture_hierarchy()
fixture_data = self.scene.get("fixtures", [])
for fixture_data_item in fixture_data:
f = Fixture(fixture_data_item, controller=self)
self._fixture_lookup_cache[f.strand()][f.address()] = f
self.fixtures.append(f)
self.create_pixel_array()
