[Pythonmac-SIG] CoreGraphics deprecations

[Ronald Oussoren]

On 4 Mar, 2010, at 7:04, Preston Holmes wrote:

> pdf = CGPDFDocumentCreateWithProvider(CGDataProviderCreateWithFilename(aFile))
> pdf.getTrimBox(pageNumber).getWidth()
> 
> I get warning output like:
> 
> Wed Mar  3 21:48:07 element.sd.cox.net Python[24469] <Error>: The function `CGPDFDocumentGetTrimBox' is obsolete and will be removed in an upcoming update. Unfortunately, this application, or a library it uses, is using this obsolete function, and is thereby contributing to an overall degradation of system performance. Please use `CGPDFPageGetBoxRect' instead.
> 
> However from doing a dir(pdf) I don't see the preferred method exposed through the python bindings.
> 
> This is 10.5.8 with stock python2.5
> 
> in 10.6.2 /System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/CoreGraphics/_CoreGraphics.so isn't even 64bit
> 
> I don't use this stuff often, but are python bindings to OS X to libraries like this withering on the vine?

The CoreGraphics module is slowly dying and there is nothing we can do about it: it is maintained by Apple and is not opensource (and the last time I checked it used undocumented APIs and is therefore unlikely to ever be opensourced).

There is a replacement though: pyobjc-framework-Quartz has the Quartz module which provides bindings to the same APIs, but using a different synta (such closer to the C API).

Ronald
> 
> -Preston
> 
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