def convertToLayer(self, viewOrLayer):
"""
Convert the View or layer to a CALayer
"""
expression_cla = '[(id)%s isKindOfClass:(Class)[CALayer class]]' % viewOrLayer
expression_sel = '[(id)%s respondsToSelector:(SEL)@selector(layer)]' % viewOrLayer
if base.evaluateBooleanExpression(expression_cla):
return viewOrLayer
elif base.evaluateBooleanExpression(expression_sel):
return base.evaluateExpression('(CALayer *)[%s layer]' % viewOrLayer)
else:
raise Exception('Argument must be a CALayer, UIView, or NSView.')
def _isUIView(self, obj):
return base.evaluateBooleanExpression('[(id)%s isKindOfClass:(Class)[UIView class]]' % obj)
