On 29 Apr, 2013, at 1:13, Rand Dvorak <randdvo...@gmail.com> wrote: > > Hello, > > I was wondering if any would could help with a issue I'm having with some > PyObjC and Quartz. I have a class the creates a pdf contact sheet from a > list of images. I have the need to include bar codes along with each image. > On the sheet is text with the filename of each image and I need to add a > barcoded filename along with it. To this end I downloaded some barcode fonts > and am trying to use CGContextDrawTextAtPoint(...) to draw the barcode but am > not having any luck. Through some research I determined that I need to call > CGContextDrawGlyphsAtPoint(...) instead, but cannot figure how to get the > glyphs to to draw. I tried just using the bare string, but am getting this > error. > > CGContextShowGlyphsAtPoint(c, 5, 5, > self.string.cStringUsingEncoding_(NSUTF8StringEncoding), len(self.string)) > ValueError: depythonifying 'unsigned short', got 'str' > > Any ideas on how to achieve what I am trying to accomplish here? Any info > would be much appreciated.
A glyph array is different from a character array, you need to convert the string to a character array before calling CGContextShowGlyphsAtPoint. One of the examples in this stackoverflow question shows how to do this in Objective-C: http://stackoverflow.com/questions/4386367/drawing-text-with-core-graphics (look for CTFontGetGlyphsForCharacters). Ronald > > Thanks, > > Rand > > > _______________________________________________ > Pythonmac-SIG maillist - Pythonmac-SIG@python.org > http://mail.python.org/mailman/listinfo/pythonmac-sig > unsubscribe: http://mail.python.org/mailman/options/Pythonmac-SIG _______________________________________________ Pythonmac-SIG maillist - Pythonmac-SIG@python.org http://mail.python.org/mailman/listinfo/pythonmac-sig unsubscribe: http://mail.python.org/mailman/options/Pythonmac-SIG
