def __init__(self, renderer, max_update_delay=0.2, *args, **keys):
''' Inits this canvas.
Things setupped: background color, default camera, node factory,
model/view/primitve renderer registries, adapter registry and
render/update policies.
'''
if 'name' not in keys:
keys['name'] = 'unnamed canvas'
self.renderer = renderer
if 'backgroundColor' in keys:
self.backgroundColor = keys['backgroundColor']
del keys['backgroundColor']
else:
self.backgroundColor = None
if 'renderPolicy' in keys:
self.renderPolicy = keys['renderPolicy']
del keys['renderPolicy']
else:
#self.renderPolicy = DefaultRenderPolicy()
self.renderPolicy = CullingRenderPolicy()
Canvas.__init__(self, self.renderer, False, None, None, None, None,
observables.ObservableLinearTransform2D(), *args,
**keys)
self.camera = observables.ObservableCamera(
observables.ObservableLinearTransform2D(), name='default camera')
self.addChild(self.camera)
self.model_kinds = [
'Rectangle', 'RoundedRectangle', 'Circle', 'Ellipse', 'Arc',
'Text', 'Line', 'LineLength', 'Lines', 'LinesList', 'LineSegments',
'LineSegmentsSeparate', 'Bitmap', 'CubicSpline', 'QuadraticSpline',
'Polygon', 'PolygonList', 'Arrow', 'AngleArrow'
]
self.primitive_kinds = [
'Rectangle', 'RoundedRectangle', 'Ellipse', 'Arc', 'Text',
'LinesList', 'LineSegmentsSeparate', 'Bitmap', 'CubicSpline',
'QuadraticSpline', 'PolygonList', 'Arrow'
]
self._setupRegistries()
self._setupNodeFactory()
self._setupAdapters()
if 'updatePolicy' in keys:
self.updatePolicy = keys['updatePolicy']
del keys['updatePolicy']
else:
self.updatePolicy = DefaultUpdatePolicy(self, max_update_delay)
self.controllers = []
self.subscribe(self.onDirty, 'attribChanged')
