def create_cgpath(frame):
newPath = CGPathCreateMutable()
CGPathMoveToPoint(newPath, None, 0, 0)
CGPathAddLineToPoint(newPath, None, frame.size.width, 0)
CGPathAddLineToPoint(newPath, None, 0, frame.size.height)
CGPathCloseSubpath(newPath)
return newPath
def shake(self, the_window):
'''Uses CoreAnimation to "shake" the alert window'''
# adapted from here:
# http://stackoverflow.com/questions/10517386/how-to-give-nswindow-a-shake-effect-as-saying-no-as-in-login-failure-window/23491643#23491643
numberOfShakes = 3
durationOfShake = 0.5
vigourOfShake = 0.05
frame = the_window.frame()
shakeAnimation = CAKeyframeAnimation.animation()
shakePath = CGPathCreateMutable()
CGPathMoveToPoint(shakePath, None, NSMinX(frame), NSMinY(frame))
for index in range(numberOfShakes):
CGPathAddLineToPoint(
shakePath, None,
NSMinX(frame) - frame.size.width * vigourOfShake, NSMinY(frame))
CGPathAddLineToPoint(
shakePath, None,
NSMinX(frame) + frame.size.width * vigourOfShake, NSMinY(frame))
CGPathCloseSubpath(shakePath)
shakeAnimation.setPath_(shakePath)
shakeAnimation.setDuration_(durationOfShake)
the_window.setAnimations_({'frameOrigin': shakeAnimation})
the_window.animator().setFrameOrigin_(frame.origin)