[Pythonmac-SIG] Using NSViewAnimation

[Dinu Gherman]

Hi,

I'm trying for the first time to use NSViewAnimation in
an NSView.mouseDown_() method like in this code below:

     def mouseDown_(self, event):
         "Animate frame expansion."

         viewFrame = self.frame()
         newFrame = (
             (viewFrame[0][0]-5, viewFrame[0][1]-5),
             (viewFrame[1][0]+10, viewFrame[1][1]+10)
         )
         viewDict = {
             NSViewAnimationTargetKey: self,
             NSViewAnimationStartFrameKey: viewFrame,
             NSViewAnimationEndFrameKey: newFrame,
         }
         anim =  
NSViewAnimation.alloc().initWithViewAnimations_([viewDict])
         anim.setDuration_(1.0)
         anim.setAnimationCurve_(NSAnimationEaseIn)
         anim.startAnimation()
         # anim.release()

But when klicking an item I get an exception like this:

   Traceback (most recent call last):
     File "simpleedit0.py", line 225, in <module>
       main()
     File "simpleedit0.py", line 221, in main
       AppHelper.runEventLoop()
     File "/usr/local/lib/python2.5/site-packages/PyObjC/PyObjCTools/ 
AppHelper.py", line 237, in runEventLoop
       NSApp().run()
   ValueError: NSInvalidArgumentException - Class OC_PythonObject: no  
such selector: rectValue

Has anybody else used NSViewAnimation successfully? Or could
a reason for this be the fact that I'm using a single Python
script without any Xcode or NIB files?

Thanks,

Dinu