draw vs. composite image in drawRect

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draw vs. composite image in drawRect

Riccardo Mottola-5
Hi,

I have subclassed NSProgressIndicator and want to draw totally my own
stuff, actually, I just intend to draw an image.

Actually, I am adapting code that works in GWorkspace: there the
indicator is a subclass in NSView, I want to make it as subclass of
NSProgressView.

I do in drawRect:

       [img compositeToPoint: NSZeroPoint
                   operation: NSCompositeSourceOver]

however, it is not working.


if instead I do:


[img drawAtPoint:NSZeroPoint fromRect:NSZeroRect
operation:NSCompositeSourceOver fraction:1];


it works! why?


Riccardo



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