PyObjC on Snow Leopard and Xcode 3.2. I've been trying to draw some text into a PDF context with a custom barcode font. I've tried translating this source, found here to Python:
http://www.gogo-robot.com/2009/06/07/two-awkward-things-about-iphone-development/ And here is the relevant code for drawing the barcode: class Barcode(Graphic): initialized = NO def __init__(self, rect, string, size): self.string = string self.font = None self.size = size if not self.initialized: fontpath = NSBundle.mainBundle().pathForResource_ofType_("FRE3OF9X", "TTF") datap = CGDataProviderCreateWithFilename(fontpath.UTF8String()) self.font = CGFontCreateWithDataProvider(datap) #CGDataProviderRelease(datap) self.initialized = YES Graphic.__init__(self, rect) def draw(self,c): length = len(self.string) glyphs = objc.allocateBuffer(length) chars = objc.allocateBuffer(length + 1) self.string.getCString_maxLength_encoding_(chars, length + 1, NSASCIIStringEncoding) for i in range(length): glyphs[i] = chr(ord(chars[i]) - 29) CGContextSaveGState(c) CGContextSetFont(c, self.font) CGContextSetFontSize(c, self.size) CGContextSetRGBFillColor(c, 0, 0, 0, 1) CGContextSetRGBStrokeColor (c, 0, 0, 0, 1) CGContextSetTextMatrix (c, self.xform) CGContextShowGlyphsAtPoint(c, 0, 0, glyphs, length) CGContextRestoreGState(c) Getting this error: CGContextShowGlyphsAtPoint(c, 0, 0, glyphs, length) ValueError: depythonifying 'unsigned short', got 'str' Can anybody point me in the right direction in how to properly prepare a data structure to pass to the CGContextShowGlyphsAtPoint(..) function. Can I use ctypes? Any help appreciated. Thanks.
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