def doAlphaOnlyContext(context):
# This code is going to capture the alpha coverage
# of the drawing done by the doAlphaRects routine.
# The value passed here as the width and height is
# the size of the bounding rectangle of that drawing.
width = 520
height = 400
alphaContext = createAlphaOnlyContext(width, height)
if context is None:
print("Couldn't create the alpha-only context!")
return
# Draw the content to the alpha-only context, capturing
# the alpha coverage. The doAlphaRects routine paints
# a series of translucent red rectangles.
DrawingBasics.doAlphaRects(alphaContext)
# Finished drawing to the context and now the raster contains
# the alpha data captured from the drawing. Create
# the mask from the data in the context.
mask = createMaskFromAlphaOnlyContext(alphaContext)
# This code is now finshed with the context so it can
# release it.
del alphaContext
if mask is None:
return
# Set the fill color space.
Quartz.CGContextSetFillColorSpace(
context, Utilities.getTheCalibratedRGBColorSpace()
)
opaqueBlue = (0.11, 0.208, 0.451, 1.0)
# Set the painting color to opaque blue.
Quartz.CGContextSetFillColor(context, opaqueBlue)
# Draw the mask, painting the mask with blue. This colorizes
# the image to blue and it is as if we painted the
# alpha rects with blue instead of red.
Quartz.CGContextDrawImage(context, Quartz.CGRectMake(0, 0, width, height), mask)
def doAlphaOnlyContext(context):
# This code is going to capture the alpha coverage
# of the drawing done by the doAlphaRects routine.
# The value passed here as the width and height is
# the size of the bounding rectangle of that drawing.
width = 520
height = 400
alphaContext = createAlphaOnlyContext(width, height);
if context is None:
print >>sys.stderr, "Couldn't create the alpha-only context!"
return
# Draw the content to the alpha-only context, capturing
# the alpha coverage. The doAlphaRects routine paints
# a series of translucent red rectangles.
DrawingBasics.doAlphaRects(alphaContext)
# Finished drawing to the context and now the raster contains
# the alpha data captured from the drawing. Create
# the mask from the data in the context.
mask = createMaskFromAlphaOnlyContext(alphaContext);
# This code is now finshed with the context so it can
# release it.
del alphaContext
if mask is None:
return
# Set the fill color space.
CGContextSetFillColorSpace(context, Utilities.getTheCalibratedRGBColorSpace());
opaqueBlue = ( 0.11, 0.208, 0.451, 1.0 )
# Set the painting color to opaque blue.
CGContextSetFillColor(context, opaqueBlue);
# Draw the mask, painting the mask with blue. This colorizes
# the image to blue and it is as if we painted the
# alpha rects with blue instead of red.
CGContextDrawImage(context, CGRectMake(0, 0, width, height), mask);
def DispatchDrawing(context, drawingType):
""" Drawing dispatcher """
if drawingType == UIHandling.kHICommandSimpleRect:
DrawingBasics.doSimpleRect(context)
elif drawingType == UIHandling.kHICommandStrokedRect:
DrawingBasics.doStrokedRect(context)
elif drawingType == UIHandling.kHICommandStrokedAndFilledRect:
DrawingBasics.doStrokedAndFilledRect(context)
elif drawingType == UIHandling.kHICommandPathRects:
DrawingBasics.doPathRects(context)
elif drawingType == UIHandling.kHICommandAlphaRects:
DrawingBasics.doAlphaRects(context)
elif drawingType == UIHandling.kHICommandDashed:
DrawingBasics.doDashedLines(context)
elif drawingType == UIHandling.kHICommandSimpleClip:
DrawingBasics.doClippedCircle(context)
elif drawingType == UIHandling.kHICommandPDFDoc:
callPDFDrawProc(context, DrawingBasics.doPDFDocument, kCatPDF)
elif drawingType == UIHandling.kHICommandRotatedEllipses:
CoordinateSystem.doRotatedEllipses(context)
elif drawingType == UIHandling.kHICommandDrawSkewCoordinates:
CoordinateSystem.drawSkewedCoordinateSystem(context)
elif drawingType == UIHandling.kHICommandBezierEgg:
PathDrawing.doEgg(context)
elif drawingType == UIHandling.kHICommandRoundedRects:
PathDrawing.doRoundedRects(context)
elif drawingType == UIHandling.kHICommandStrokeWithCTM:
PathDrawing.doStrokeWithCTM(context)
elif drawingType == UIHandling.kHICommandRotatedEllipsesWithCGPath:
PathDrawing.doRotatedEllipsesWithCGPath(context)
elif drawingType == UIHandling.kHICommandPixelAligned:
PathDrawing.doPixelAlignedFillAndStroke(context)
elif drawingType == UIHandling.kHICommandDeviceFillAndStrokeColor:
ColorAndGState.doColorSpaceFillAndStroke(context)
elif drawingType == UIHandling.kHICommandCLUTDrawGraphics:
ColorAndGState.doIndexedColorDrawGraphics(context)
elif drawingType == UIHandling.kHICommandDrawWithGlobalAlpha:
ColorAndGState.drawWithGlobalAlpha(context)
elif drawingType == UIHandling.kHICommandDrawWithBlendMode:
callPDFDrawProc(context, ColorAndGState.drawWithColorBlendMode, kPDFForBlendMode)
elif drawingType == UIHandling.kHICommandDrawWithColorRefs:
ColorAndGState.drawWithColorRefs(context)
elif drawingType == UIHandling.kHICommandFunctionsHaveOwnGSave:
ColorAndGState.doClippedEllipse(context)
elif drawingType == UIHandling.kHICommandDrawJPEGImage:
doDrawJPEGFile(context)
elif drawingType == UIHandling.kHICommandColorImageFromFile:
doRawImageFileWithURL(context)
elif drawingType == UIHandling.kHICommandColorImageFromData:
Images.doColorRampImage(context)
elif drawingType == UIHandling.kHICommandColorImageFromCallbacks:
doRawImageFileWithCallbacks(context)
elif drawingType == UIHandling.kHICommandGrayRamp:
Images.doGrayRamp(context)
elif drawingType == UIHandling.kHICommandDrawWithCGImageSource:
doDrawImageWithCGImageSource(context)
elif drawingType == UIHandling.kHICommandDrawWithCGImageSourceIncremental:
doIncrementalImage(context)
elif drawingType == UIHandling.kHICommandDrawWithQuickTime:
doQTImage(context)
elif drawingType == UIHandling.kHICommandSubstituteImageProfile:
doJPEGDocumentWithMultipleProfiles(context)
elif drawingType == UIHandling.kHICommandDoSubImage:
Images.doColorRampSubImage(context)
elif drawingType == UIHandling.kHICommandExportWithQuickTime:
Images.exportColorRampImageWithQT(context)
elif drawingType == UIHandling.kHICommandMaskTurkeyImage:
ImageMasking.doOneBitMaskImages(context)
elif drawingType == UIHandling.kHICommandImageMaskedWithMask:
doMaskImageWithMask(context)
elif drawingType == UIHandling.kHICommandImageMaskedWithGrayImage:
doMaskImageWithGrayImage(context)
elif drawingType == UIHandling.kHICommandMaskImageWithColor:
doImageMaskedWithColor(context)
elif drawingType == UIHandling.kHICommandClipToMask:
doClipMask(context)
elif drawingType == UIHandling.kHICommandExportWithCGImageDestination:
exportImageMaskedWithImage(context)
elif drawingType == UIHandling.kHICommandSimpleCGLayer:
BitmapContext.doSimpleCGLayer(context)
elif drawingType == UIHandling.kHICommandAlphaOnlyContext:
BitmapContext.doAlphaOnlyContext(context)
elif drawingType == UIHandling.kHICommandDrawNoOffScreenImage:
tilePDFDocument(context, noOffScreen)
elif drawingType == UIHandling.kHICommandDrawOffScreenImage:
tilePDFDocument(context, bitmapOffScreen)
elif drawingType == UIHandling.kHICommandDrawWithLayer:
tilePDFDocument(context, layerOffScreen)
elif drawingType == UIHandling.kHICommandQuartzRomanText:
QuartzTextDrawing.drawQuartzRomanText(context)
elif drawingType == UIHandling.kHICommandQuartzTextModes:
QuartzTextDrawing.drawQuartzTextWithTextModes(context)
elif drawingType == UIHandling.kHICommandQuartzTextMatrix:
QuartzTextDrawing.drawQuartzTextWithTextMatrix(context)
elif drawingType == UIHandling.kHICommandSimplePattern:
PatternDrawing.doRedBlackCheckerboard(context)
elif drawingType == UIHandling.kHICommandPatternPhase:
PatternDrawing.doPatternPhase(context)
elif drawingType == UIHandling.kHICommandPatternMatrix:
PatternDrawing.doPatternMatrix(context)
elif drawingType == UIHandling.kHICommandUncoloredPattern:
PatternDrawing.doStencilPattern(context)
elif drawingType == UIHandling.kHICommandDrawWithPDFPattern:
callPDFDrawProc(context, PatternDrawing.drawWithPDFPattern, kCatPDF)
elif drawingType == UIHandling.kHICommandSimpleShadow:
ShadowsAndTransparencyLayers.drawSimpleShadow(context)
elif drawingType == UIHandling.kHICommandShadowScaling:
ShadowsAndTransparencyLayers.doShadowScaling(context)
elif drawingType == UIHandling.kHICommandShadowProblems:
ShadowsAndTransparencyLayers.showComplexShadowIssues(context)
elif drawingType == UIHandling.kHICommandComplexShadow:
ShadowsAndTransparencyLayers.showComplexShadow(context)
elif drawingType == UIHandling.kHICommandMultipleShapeComposite:
ShadowsAndTransparencyLayers.doLayerCompositing(context)
elif drawingType == UIHandling.kHICommandFillAndStrokeWithShadow:
ShadowsAndTransparencyLayers.drawFillAndStrokeWithShadow(context)
elif drawingType == UIHandling.kHICommandPDFDocumentShadow:
callPDFDrawProc(context, ShadowsAndTransparencyLayers.shadowPDFDocument, kCatPDF)
elif drawingType == UIHandling.kHICommandSimpleAxialShading:
Shadings.doSimpleAxialShading(context)
elif drawingType == UIHandling.kHICommandExampleAxialShadings:
Shadings.doExampleAxialShading(context)
elif drawingType == UIHandling.kHICommandSimpleRadialShading:
Shadings.doSimpleRadialShading(context)
elif drawingType == UIHandling.kHICommandExampleRadialShadings:
Shadings.doExampleRadialShadings(context)
elif drawingType == UIHandling.kHICommandEllipseShading:
Shadings.doEllipseShading(context)
elif drawingType == UIHandling.kHICommandDoCompatibleEPS:
doCompatibleEPSDrawing(context)
def DispatchDrawing(context, drawingType):
""" Drawing dispatcher """
if drawingType == UIHandling.kHICommandSimpleRect:
DrawingBasics.doSimpleRect(context)
elif drawingType == UIHandling.kHICommandStrokedRect:
DrawingBasics.doStrokedRect(context)
elif drawingType == UIHandling.kHICommandStrokedAndFilledRect:
DrawingBasics.doStrokedAndFilledRect(context)
elif drawingType == UIHandling.kHICommandPathRects:
DrawingBasics.doPathRects(context)
elif drawingType == UIHandling.kHICommandAlphaRects:
DrawingBasics.doAlphaRects(context)
elif drawingType == UIHandling.kHICommandDashed:
DrawingBasics.doDashedLines(context)
elif drawingType == UIHandling.kHICommandSimpleClip:
DrawingBasics.doClippedCircle(context)
elif drawingType == UIHandling.kHICommandPDFDoc:
callPDFDrawProc(context, DrawingBasics.doPDFDocument, kCatPDF)
elif drawingType == UIHandling.kHICommandRotatedEllipses:
CoordinateSystem.doRotatedEllipses(context)
elif drawingType == UIHandling.kHICommandDrawSkewCoordinates:
CoordinateSystem.drawSkewedCoordinateSystem(context)
elif drawingType == UIHandling.kHICommandBezierEgg:
PathDrawing.doEgg(context)
elif drawingType == UIHandling.kHICommandRoundedRects:
PathDrawing.doRoundedRects(context)
elif drawingType == UIHandling.kHICommandStrokeWithCTM:
PathDrawing.doStrokeWithCTM(context)
elif drawingType == UIHandling.kHICommandRotatedEllipsesWithCGPath:
PathDrawing.doRotatedEllipsesWithCGPath(context)
elif drawingType == UIHandling.kHICommandPixelAligned:
PathDrawing.doPixelAlignedFillAndStroke(context)
elif drawingType == UIHandling.kHICommandDeviceFillAndStrokeColor:
ColorAndGState.doColorSpaceFillAndStroke(context)
elif drawingType == UIHandling.kHICommandCLUTDrawGraphics:
ColorAndGState.doIndexedColorDrawGraphics(context)
elif drawingType == UIHandling.kHICommandDrawWithGlobalAlpha:
ColorAndGState.drawWithGlobalAlpha(context)
elif drawingType == UIHandling.kHICommandDrawWithBlendMode:
callPDFDrawProc(context, ColorAndGState.drawWithColorBlendMode,
kPDFForBlendMode)
elif drawingType == UIHandling.kHICommandDrawWithColorRefs:
ColorAndGState.drawWithColorRefs(context)
elif drawingType == UIHandling.kHICommandFunctionsHaveOwnGSave:
ColorAndGState.doClippedEllipse(context)
elif drawingType == UIHandling.kHICommandDrawJPEGImage:
doDrawJPEGFile(context)
elif drawingType == UIHandling.kHICommandColorImageFromFile:
doRawImageFileWithURL(context)
elif drawingType == UIHandling.kHICommandColorImageFromData:
Images.doColorRampImage(context)
elif drawingType == UIHandling.kHICommandColorImageFromCallbacks:
doRawImageFileWithCallbacks(context)
elif drawingType == UIHandling.kHICommandGrayRamp:
Images.doGrayRamp(context)
elif drawingType == UIHandling.kHICommandDrawWithCGImageSource:
doDrawImageWithCGImageSource(context)
elif drawingType == UIHandling.kHICommandDrawWithCGImageSourceIncremental:
doIncrementalImage(context)
elif drawingType == UIHandling.kHICommandDrawWithQuickTime:
doQTImage(context)
elif drawingType == UIHandling.kHICommandSubstituteImageProfile:
doJPEGDocumentWithMultipleProfiles(context)
elif drawingType == UIHandling.kHICommandDoSubImage:
Images.doColorRampSubImage(context)
elif drawingType == UIHandling.kHICommandExportWithQuickTime:
Images.exportColorRampImageWithQT(context)
elif drawingType == UIHandling.kHICommandMaskTurkeyImage:
ImageMasking.doOneBitMaskImages(context)
elif drawingType == UIHandling.kHICommandImageMaskedWithMask:
doMaskImageWithMask(context)
elif drawingType == UIHandling.kHICommandImageMaskedWithGrayImage:
doMaskImageWithGrayImage(context)
elif drawingType == UIHandling.kHICommandMaskImageWithColor:
doImageMaskedWithColor(context)
elif drawingType == UIHandling.kHICommandClipToMask:
doClipMask(context)
elif drawingType == UIHandling.kHICommandExportWithCGImageDestination:
exportImageMaskedWithImage(context)
elif drawingType == UIHandling.kHICommandSimpleCGLayer:
BitmapContext.doSimpleCGLayer(context)
elif drawingType == UIHandling.kHICommandAlphaOnlyContext:
BitmapContext.doAlphaOnlyContext(context)
elif drawingType == UIHandling.kHICommandDrawNoOffScreenImage:
tilePDFDocument(context, noOffScreen)
elif drawingType == UIHandling.kHICommandDrawOffScreenImage:
tilePDFDocument(context, bitmapOffScreen)
elif drawingType == UIHandling.kHICommandDrawWithLayer:
tilePDFDocument(context, layerOffScreen)
elif drawingType == UIHandling.kHICommandQuartzRomanText:
QuartzTextDrawing.drawQuartzRomanText(context)
elif drawingType == UIHandling.kHICommandQuartzTextModes:
QuartzTextDrawing.drawQuartzTextWithTextModes(context)
elif drawingType == UIHandling.kHICommandQuartzTextMatrix:
QuartzTextDrawing.drawQuartzTextWithTextMatrix(context)
elif drawingType == UIHandling.kHICommandSimplePattern:
PatternDrawing.doRedBlackCheckerboard(context)
elif drawingType == UIHandling.kHICommandPatternPhase:
PatternDrawing.doPatternPhase(context)
elif drawingType == UIHandling.kHICommandPatternMatrix:
PatternDrawing.doPatternMatrix(context)
elif drawingType == UIHandling.kHICommandUncoloredPattern:
PatternDrawing.doStencilPattern(context)
elif drawingType == UIHandling.kHICommandDrawWithPDFPattern:
callPDFDrawProc(context, PatternDrawing.drawWithPDFPattern, kCatPDF)
elif drawingType == UIHandling.kHICommandSimpleShadow:
ShadowsAndTransparencyLayers.drawSimpleShadow(context)
elif drawingType == UIHandling.kHICommandShadowScaling:
ShadowsAndTransparencyLayers.doShadowScaling(context)
elif drawingType == UIHandling.kHICommandShadowProblems:
ShadowsAndTransparencyLayers.showComplexShadowIssues(context)
elif drawingType == UIHandling.kHICommandComplexShadow:
ShadowsAndTransparencyLayers.showComplexShadow(context)
elif drawingType == UIHandling.kHICommandMultipleShapeComposite:
ShadowsAndTransparencyLayers.doLayerCompositing(context)
elif drawingType == UIHandling.kHICommandFillAndStrokeWithShadow:
ShadowsAndTransparencyLayers.drawFillAndStrokeWithShadow(context)
elif drawingType == UIHandling.kHICommandPDFDocumentShadow:
callPDFDrawProc(context,
ShadowsAndTransparencyLayers.shadowPDFDocument,
kCatPDF)
elif drawingType == UIHandling.kHICommandSimpleAxialShading:
Shadings.doSimpleAxialShading(context)
elif drawingType == UIHandling.kHICommandExampleAxialShadings:
Shadings.doExampleAxialShading(context)
elif drawingType == UIHandling.kHICommandSimpleRadialShading:
Shadings.doSimpleRadialShading(context)
elif drawingType == UIHandling.kHICommandExampleRadialShadings:
Shadings.doExampleRadialShadings(context)
elif drawingType == UIHandling.kHICommandEllipseShading:
Shadings.doEllipseShading(context)
elif drawingType == UIHandling.kHICommandDoCompatibleEPS:
doCompatibleEPSDrawing(context)
