On 13 Jul, 2011, at 4:00, Jim Skibbie wrote: > I have a python script that takes a PDF file and returns the width and height > of the document's first page. When I moved this to Snow Leopard, I have to > run this in 32-bit mode or I can an error: > File > "/BinaryCache/CoreGraphicsBindings/CoreGraphicsBindings-26~139/Root/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/CoreGraphics/__init__.py", > line 7, in <module> > ImportError: > /System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/CoreGraphics/_CoreGraphics.so: > no appropriate 64-bit architecture > Googling around, I find that CoreGraphics is no longer bound to python in > Snow Leopard and that it will eventually need to be converted to PyObjC. > Can anyone point me in a direction on where I might find some information on > how to do this kind of porting?
The Quartz APIs are available through pyobjc (using "import Quartz"). IIIRC the CoreGraphics module contains an OO-ish interface, the Quartz module is just a straightforward mapping of the C API, which means you have to call global functions instead of methods on objects. One thing you will probably run into is functions that aren't avaiable in the Quartz package: the CoreGraphics module contains a number of functions that aren't wrappers for functions in the public C API of the CoreGraphics framework, and those functions are therefore not available in the Quartz . Ronald > The existing script is below: > # step 1: import the required modules > import os, sys > from CoreGraphics import * > > if len( sys.argv ) != 2: > print "ERROR: useage: python example2.py pdf_filename" > sys.exit(1) > > # step 2: read the pdf file name from the command line arguments > pdf_filename = sys.argv[1] > pdf_name, ext = os.path.splitext( pdf_filename ) > > # step 3: create the input PDF document > provider = CGDataProviderCreateWithFilename( pdf_filename ) > pdf = CGPDFDocumentCreateWithProvider( provider ) > if pdf is None: > print "ERROR reading PDF document - \r\n check that the supplied > filename points to a PDF file" > sys.exit(1) > > page_number = 1 > > #page_rect = pdf.getMediaBox( page_number ) > > page_rect = pdf.getPage(page_number).getBoxRect(page_number) > > page_width = float(page_rect.getWidth()) > page_height = float(page_rect.getHeight()) > > print "%f\r\n%f" % (page_width, page_height) > > Thanks. > Jim > _______________________________________________ > Pythonmac-SIG maillist - Pythonmac-SIG@python.org > http://mail.python.org/mailman/listinfo/pythonmac-sig > unsubscribe: http://mail.python.org/mailman/options/Pythonmac-SIG
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