from Quartz import * import Quartz import os, sys # Return the generic RGB color space. This is a 'get' function and the caller # should not release the returned value unless the caller retains it first. # Usually callers of this routine will immediately use the returned colorspace # with CoreGraphics so they typically do not need to retain it themselves. # This function creates the generic RGB color space once and hangs onto it so # it can return it whenever this function is called. _genericRGBColorSpace = None def getTheCalibratedRGBColorSpace(): global _genericRGBColorSpace if _genericRGBColorSpace is None: _genericRGBColorSpace = CGColorSpaceCreateWithName( kCGColorSpaceGenericRGB) return _genericRGBColorSpace def addURLAnnotationToPDFPage(c, rect): link = "http:#developer.apple.com/documentation/GraphicsImaging/" linkURL = CFURLCreateWithBytes(None, link, len(link), kCFStringEncodingUTF8, None) if linkURL is None: print >>sys.stderr, "Couldn't create url for link!" return CGPDFContextSetURLForRect(c, linkURL, rect) def myCreatePDFDocumentAtURL(url): red = [1., 0., 0., 1.] # Make the media box the same size as the graphics this code draws. mediaBox = CGRectMake(0, 0, 200, 200) # Create a PDF context using mediaBox as the default media box for the # document. The document will be created at the location described by # the supplied URL. This example passes None for the auxiliaryInfo # dictionary. pdfContext = CGPDFContextCreateWithURL(url, mediaBox, None) if pdfContext is None: print >>sys.stderr, "Couldn't create PDF context!" return # Calling CGContextBeginPage indicates the following content is # to appear on the first page. The rect passed to this function # specifies the media box for this page. mediaBox = CGContextBeginPage(pdfContext, None) # It is good programming practice to bracket the drawing # you do on a page with saving and restoring the graphics # state. CGContextSaveGState(pdfContext) if 1: # Clip to the media box. CGContextClipToRect(pdfContext, mediaBox) # Set the fill color and color space. CGContextSetFillColorSpace(pdfContext, getTheCalibratedRGBColorSpace()) CGContextSetFillColor(pdfContext, red) # Fill the rectangle of the media box with red. CGContextFillRect(pdfContext, mediaBox) # Add a link to a URL so that if you click # on the rect you will go to that URL. addURLAnnotationToPDFPage(pdfContext, mediaBox) CGContextRestoreGState(pdfContext) # Calling CGContextEndPage denotes the end of the first page. # You MUST call CGContextEndPage after each time you call # CGContextBeginPage and they should not be nested. CGContextEndPage(pdfContext) # You MUST release the PDF context when done with it. When the # retain count on the context reaches zero, Quartz flushes the # drawing content to the PDF file being created and closes it. CGContextRelease(pdfContext) # This function returns a None CFStringRef if the password # is greater than 32 bytes long or the string contains # characters outside the range 32-127 inclusive. def createPasswordString(password): # Check the length. if len(password) > 32: return None # Check that the byte codes are in the printable ASCII range. for ch in password: if not (32 <= ord(ch) <= 127): return None return CFStringCreateWithCString(None, password, kCFStringEncodingASCII) def addEncryptionKeys(dict): ownerPassword = "test" ownerPasswordRef = None if dict is None: return ownerPasswordRef = createPasswordString(ownerPassword) if ownerPasswordRef == None: print >>sys.stderr, "Invalid owner password %s!"%(ownerPassword,) return if hasattr(Quartz, 'kCGPDFContextOwnerPassword'): # Add the owner password. dict[kCGPDFContextOwnerPassword] = ownerPasswordRef # No user password supplied so Quartz will use the empty string. # Mark that printing is disallowed. dict[kCGPDFContextAllowsPrinting] = False else: print >>sys.stderr, "Encrypted PDF not available in this version of Mac OS X!" def myCreate2PagePDFDocumentAtURL(url): red = [1., 0., 0., 1.] blue = [0., 0., 1., 1.] redPageName = u"com.mycompany.links.dg.redpage" bluePageName = u"com.mycompany.links.dg.bluepage" # Make the media box the same size as a US Letter size page. mediaBox = CGRectMake(0, 0, 612, 792) rectBox = CGRectMake(55, 55, 500, 680) # Create a point whose center is the center of rectBox. centerPoint = CGPoint(rectBox.origin.x + rectBox.size.width/2, rectBox.origin.y + rectBox.size.height/2) auxiliaryInfo = {} addEncryptionKeys(auxiliaryInfo) pdfContext = CGPDFContextCreateWithURL(url, mediaBox, auxiliaryInfo) if pdfContext is None: print >>sys.stderr, "Couldn't create PDF context!" return # Start the first page CGContextBeginPage(pdfContext, mediaBox) CGContextSaveGState(pdfContext) if 1: # Clip to the media box. CGContextClipToRect(pdfContext, mediaBox) # Set the fill color and color space. CGContextSetFillColorSpace(pdfContext, getTheCalibratedRGBColorSpace()) CGContextSetFillColor(pdfContext, red) # Fill the rectangle of the media box with red. CGContextFillRect(pdfContext, rectBox) # Make a new named destination at the center of the rect being # painted. Here the code uses the name redPageName since # this is the "red" page that is being named. CGPDFContextAddDestinationAtPoint(pdfContext, redPageName, centerPoint) # Make a link to a destination not yet created, that for # the "blue" page. Making this link is independent from # the creation of the destination above. Clicking # on this link in the generated PDF document navigates to # the destination referenced by bluePageName. CGPDFContextSetDestinationForRect(pdfContext, bluePageName, rectBox) CGContextRestoreGState(pdfContext) CGContextEndPage(pdfContext) # Start the second page. CGContextBeginPage(pdfContext, mediaBox) CGContextSaveGState(pdfContext) if 1: # Clip to the media box. CGContextClipToRect(pdfContext, mediaBox) # Set the fill color and color space. CGContextSetFillColorSpace(pdfContext, getTheCalibratedRGBColorSpace()) CGContextSetFillColor(pdfContext, blue) # Fill the rectangle of the media box with blue. CGContextFillRect(pdfContext, rectBox) # Make a new named destination at the center of the rect # being painted. Here the code uses the name bluePageName # since this is the "blue" page that is being named. The link # on page 1 refers to this destination. CGPDFContextAddDestinationAtPoint(pdfContext, bluePageName, centerPoint) # Make a link to a destination already created # for page 1, the red page. Clicking on this link # in the generated PDF document navigates to # the destination referenced by redPageName. CGPDFContextSetDestinationForRect(pdfContext, redPageName, rectBox) CGContextRestoreGState(pdfContext) CGContextEndPage(pdfContext) # You MUST release the PDF context when done with it. When the # retain count on the context reaches zero, Quartz flushes the # drawing content to the PDF file being created and closes it. del pdfContext def main(args=None): if args is None: args = sys.argv path = "output.pdf" url = CFURLCreateFromFileSystemRepresentation(None, path, len(path), False) if url is None: print >>sys.stderr, "Couldn't create URL!" return 1 myCreate2PagePDFDocumentAtURL(url) return 0 if __name__ == "__main__": sys.exit(main())