CGContext.h

作者: 李潇南 | 来源:发表于2017-09-11 10:26 被阅读22次
typedef CF_ENUM (int32_t, CGPathDrawingMode) {
  kCGPathFill,
  kCGPathEOFill,
  kCGPathStroke,
  kCGPathFillStroke,
  kCGPathEOFillStroke
};

/* Drawing modes for text. */

typedef CF_ENUM (int32_t, CGTextDrawingMode) {
  kCGTextFill,
  kCGTextStroke,
  kCGTextFillStroke,
  kCGTextInvisible,
  kCGTextFillClip,
  kCGTextStrokeClip,
  kCGTextFillStrokeClip,
  kCGTextClip
};

typedef CF_ENUM (int32_t, CGTextEncoding) {
  kCGEncodingFontSpecific,
  kCGEncodingMacRoman
} CG_AVAILABLE_BUT_DEPRECATED(__MAC_10_0, __MAC_10_9, __IPHONE_2_0, __IPHONE_7_0);

/* Interpolation quality. */

typedef CF_ENUM (int32_t, CGInterpolationQuality) {
  kCGInterpolationDefault = 0,  /* Let the context decide. */
  kCGInterpolationNone = 1,     /* Never interpolate. */
  kCGInterpolationLow = 2,      /* Low quality, fast interpolation. */
  kCGInterpolationMedium = 4,   /* Medium quality, slower than kCGInterpolationLow. */
  kCGInterpolationHigh = 3      /* Highest quality, slower than kCGInterpolationMedium. */
};

CG_EXTERN CFTypeID CGContextGetTypeID(void)
    CG_AVAILABLE_STARTING(__MAC_10_2, __IPHONE_2_0);

CG_EXTERN void CGContextSaveGState(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);


CG_EXTERN void CGContextRestoreGState(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextScaleCTM(CGContextRef cg_nullable c,
    CGFloat sx, CGFloat sy)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextTranslateCTM(CGContextRef cg_nullable c,
    CGFloat tx, CGFloat ty)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextRotateCTM(CGContextRef cg_nullable c, CGFloat angle)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);


CG_EXTERN void CGContextConcatCTM(CGContextRef cg_nullable c,
    CGAffineTransform transform)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN CGAffineTransform CGContextGetCTM(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetLineWidth(CGContextRef cg_nullable c, CGFloat width)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetLineCap(CGContextRef cg_nullable c, CGLineCap cap)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetLineJoin(CGContextRef cg_nullable c, CGLineJoin join)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetMiterLimit(CGContextRef cg_nullable c, CGFloat limit)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetLineDash(CGContextRef cg_nullable c, CGFloat phase,
    const CGFloat * __nullable lengths, size_t count)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetFlatness(CGContextRef cg_nullable c, CGFloat flatness)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetAlpha(CGContextRef cg_nullable c, CGFloat alpha)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetBlendMode(CGContextRef cg_nullable c, CGBlendMode mode)
    CG_AVAILABLE_STARTING(__MAC_10_4, __IPHONE_2_0);

CG_EXTERN void CGContextBeginPath(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextMoveToPoint(CGContextRef cg_nullable c,
    CGFloat x, CGFloat y)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextAddLineToPoint(CGContextRef cg_nullable c,
    CGFloat x, CGFloat y)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextAddCurveToPoint(CGContextRef cg_nullable c, CGFloat cp1x,
    CGFloat cp1y, CGFloat cp2x, CGFloat cp2y, CGFloat x, CGFloat y)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);


CG_EXTERN void CGContextAddQuadCurveToPoint(CGContextRef cg_nullable c,
    CGFloat cpx, CGFloat cpy, CGFloat x, CGFloat y)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextClosePath(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextAddRect(CGContextRef cg_nullable c, CGRect rect)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextAddRects(CGContextRef cg_nullable c,
    const CGRect * __nullable rects, size_t count)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextAddLines(CGContextRef cg_nullable c,
    const CGPoint * __nullable points, size_t count)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextAddEllipseInRect(CGContextRef cg_nullable c, CGRect rect)
    CG_AVAILABLE_STARTING(__MAC_10_4, __IPHONE_2_0);

CG_EXTERN void CGContextAddArc(CGContextRef cg_nullable c, CGFloat x, CGFloat y,
    CGFloat radius, CGFloat startAngle, CGFloat endAngle, int clockwise)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextAddArcToPoint(CGContextRef cg_nullable c,
    CGFloat x1, CGFloat y1, CGFloat x2, CGFloat y2, CGFloat radius)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextAddPath(CGContextRef cg_nullable c,
    CGPathRef cg_nullable path)
    CG_AVAILABLE_STARTING(__MAC_10_2, __IPHONE_2_0);

CG_EXTERN void CGContextReplacePathWithStrokedPath(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_4, __IPHONE_2_0);

CG_EXTERN bool CGContextIsPathEmpty(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN CGPoint CGContextGetPathCurrentPoint(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN CGRect CGContextGetPathBoundingBox(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN CGPathRef __nullable CGContextCopyPath(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_2, __IPHONE_2_0);

CG_EXTERN bool CGContextPathContainsPoint(CGContextRef cg_nullable c,
    CGPoint point, CGPathDrawingMode mode)
    CG_AVAILABLE_STARTING(__MAC_10_4, __IPHONE_2_0);

CG_EXTERN void CGContextDrawPath(CGContextRef cg_nullable c,
    CGPathDrawingMode mode)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextFillPath(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextEOFillPath(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextStrokePath(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextFillRect(CGContextRef cg_nullable c, CGRect rect)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextFillRects(CGContextRef cg_nullable c,
    const CGRect * __nullable rects, size_t count)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextStrokeRect(CGContextRef cg_nullable c, CGRect rect)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextStrokeRectWithWidth(CGContextRef cg_nullable c,
    CGRect rect, CGFloat width)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextClearRect(CGContextRef cg_nullable c, CGRect rect)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);


CG_EXTERN void CGContextFillEllipseInRect(CGContextRef cg_nullable c,
    CGRect rect)
    CG_AVAILABLE_STARTING(__MAC_10_4, __IPHONE_2_0);

CG_EXTERN void CGContextStrokeEllipseInRect(CGContextRef cg_nullable c,
    CGRect rect)
    CG_AVAILABLE_STARTING(__MAC_10_4, __IPHONE_2_0);

CG_EXTERN void CGContextStrokeLineSegments(CGContextRef cg_nullable c,
    const CGPoint * __nullable points, size_t count)
    CG_AVAILABLE_STARTING(__MAC_10_4, __IPHONE_2_0);

CG_EXTERN void CGContextClip(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextEOClip(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextClipToMask(CGContextRef cg_nullable c, CGRect rect,
    CGImageRef cg_nullable mask)
    CG_AVAILABLE_STARTING(__MAC_10_4, __IPHONE_2_0);

CG_EXTERN CGRect CGContextGetClipBoundingBox(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_3, __IPHONE_2_0);

CG_EXTERN void CGContextClipToRect(CGContextRef cg_nullable c, CGRect rect)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextClipToRects(CGContextRef cg_nullable c,
    const CGRect *  rects, size_t count)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetFillColorWithColor(CGContextRef cg_nullable c,
    CGColorRef cg_nullable color)
    CG_AVAILABLE_STARTING(__MAC_10_3, __IPHONE_2_0);

CG_EXTERN void CGContextSetStrokeColorWithColor(CGContextRef cg_nullable c,
    CGColorRef cg_nullable color)
    CG_AVAILABLE_STARTING(__MAC_10_3, __IPHONE_2_0);

CG_EXTERN void CGContextSetFillColorSpace(CGContextRef cg_nullable c,
    CGColorSpaceRef cg_nullable space)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetStrokeColorSpace(CGContextRef cg_nullable c,
    CGColorSpaceRef cg_nullable space)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetFillColor(CGContextRef cg_nullable c,
    const CGFloat * cg_nullable components)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetStrokeColor(CGContextRef cg_nullable c,
    const CGFloat * cg_nullable components)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetFillPattern(CGContextRef cg_nullable c,
    CGPatternRef cg_nullable pattern, const CGFloat * cg_nullable components)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetStrokePattern(CGContextRef cg_nullable c,
    CGPatternRef cg_nullable pattern, const CGFloat * cg_nullable components)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetPatternPhase(CGContextRef cg_nullable c, CGSize phase)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetGrayFillColor(CGContextRef cg_nullable c,
    CGFloat gray, CGFloat alpha)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetGrayStrokeColor(CGContextRef cg_nullable c,
    CGFloat gray, CGFloat alpha)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetRGBFillColor(CGContextRef cg_nullable c, CGFloat red,
    CGFloat green, CGFloat blue, CGFloat alpha)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetRGBStrokeColor(CGContextRef cg_nullable c,
    CGFloat red, CGFloat green, CGFloat blue, CGFloat alpha)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetCMYKFillColor(CGContextRef cg_nullable c,
    CGFloat cyan, CGFloat magenta, CGFloat yellow, CGFloat black, CGFloat alpha)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetCMYKStrokeColor(CGContextRef cg_nullable c,
    CGFloat cyan, CGFloat magenta, CGFloat yellow, CGFloat black, CGFloat alpha)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetRenderingIntent(CGContextRef cg_nullable c,
    CGColorRenderingIntent intent)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextDrawImage(CGContextRef cg_nullable c, CGRect rect,
    CGImageRef cg_nullable image)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);


CG_EXTERN void CGContextDrawTiledImage(CGContextRef cg_nullable c, CGRect rect,
    CGImageRef cg_nullable image)
    CG_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0);

CG_EXTERN CGInterpolationQuality
    CGContextGetInterpolationQuality(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetInterpolationQuality(CGContextRef cg_nullable c,
    CGInterpolationQuality quality)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetShadowWithColor(CGContextRef cg_nullable c,
    CGSize offset, CGFloat blur, CGColorRef __nullable color)
    CG_AVAILABLE_STARTING(__MAC_10_3, __IPHONE_2_0);


CG_EXTERN void CGContextSetShadow(CGContextRef cg_nullable c, CGSize offset,
    CGFloat blur)
    CG_AVAILABLE_STARTING(__MAC_10_3, __IPHONE_2_0);

CG_EXTERN void CGContextDrawLinearGradient(CGContextRef cg_nullable c,
    CGGradientRef cg_nullable gradient, CGPoint startPoint, CGPoint endPoint,
    CGGradientDrawingOptions options)
    CG_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0);


CG_EXTERN void CGContextDrawRadialGradient(CGContextRef cg_nullable c,
    CGGradientRef cg_nullable gradient, CGPoint startCenter, CGFloat startRadius,
    CGPoint endCenter, CGFloat endRadius, CGGradientDrawingOptions options)
    CG_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0);

CG_EXTERN void CGContextDrawShading(CGContextRef cg_nullable c,
    cg_nullable CGShadingRef shading)
    CG_AVAILABLE_STARTING(__MAC_10_2, __IPHONE_2_0);

CG_EXTERN void CGContextSetCharacterSpacing(CGContextRef cg_nullable c,
    CGFloat spacing)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetTextPosition(CGContextRef cg_nullable c,
    CGFloat x, CGFloat y)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN CGPoint CGContextGetTextPosition(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetTextMatrix(CGContextRef cg_nullable c,
    CGAffineTransform t)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);


CG_EXTERN CGAffineTransform CGContextGetTextMatrix(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);


CG_EXTERN void CGContextSetTextDrawingMode(CGContextRef cg_nullable c,
    CGTextDrawingMode mode)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetFont(CGContextRef cg_nullable c,
    CGFontRef cg_nullable font)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetFontSize(CGContextRef cg_nullable c, CGFloat size)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextShowGlyphsAtPositions(CGContextRef cg_nullable c,
    const CGGlyph * cg_nullable glyphs, const CGPoint * cg_nullable Lpositions,
    size_t count)
    CG_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0);

CG_EXTERN void CGContextDrawPDFPage(CGContextRef cg_nullable c,
    CGPDFPageRef cg_nullable page)
    CG_AVAILABLE_STARTING(__MAC_10_3, __IPHONE_2_0);

CG_EXTERN void CGContextBeginPage(CGContextRef cg_nullable c,
    const CGRect * __nullable mediaBox)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextEndPage(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN CGContextRef cg_nullable CGContextRetain(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextRelease(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextFlush(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSynchronize(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetShouldAntialias(CGContextRef cg_nullable c,
    bool shouldAntialias)
    CG_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

CG_EXTERN void CGContextSetAllowsAntialiasing(CGContextRef cg_nullable c,
    bool allowsAntialiasing)
    CG_AVAILABLE_STARTING(__MAC_10_4, __IPHONE_2_0);

CG_EXTERN void CGContextSetShouldSmoothFonts(CGContextRef cg_nullable c,
    bool shouldSmoothFonts)
    CG_AVAILABLE_STARTING(__MAC_10_2, __IPHONE_2_0);

CG_EXTERN void CGContextSetAllowsFontSmoothing(CGContextRef cg_nullable c,
    bool allowsFontSmoothing)
    CG_AVAILABLE_STARTING(__MAC_10_2, __IPHONE_2_0);

CG_EXTERN void CGContextSetShouldSubpixelPositionFonts(
    CGContextRef cg_nullable c, bool shouldSubpixelPositionFonts)
    CG_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0);


CG_EXTERN void CGContextSetAllowsFontSubpixelPositioning(
    CGContextRef cg_nullable c, bool allowsFontSubpixelPositioning)
    CG_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0);

CG_EXTERN void CGContextSetShouldSubpixelQuantizeFonts(
    CGContextRef cg_nullable c, bool shouldSubpixelQuantizeFonts)
    CG_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0)

CG_EXTERN void CGContextSetAllowsFontSubpixelQuantization(
    CGContextRef cg_nullable c, bool allowsFontSubpixelQuantization)
    CG_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0);

CG_EXTERN void CGContextBeginTransparencyLayer(CGContextRef cg_nullable c,
    CFDictionaryRef __nullable auxiliaryInfo)
    CG_AVAILABLE_STARTING(__MAC_10_3, __IPHONE_2_0);

CG_EXTERN void CGContextBeginTransparencyLayerWithRect(
    CGContextRef cg_nullable c, CGRect rect, CFDictionaryRef __nullable auxInfo)
    CG_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0);

CG_EXTERN void CGContextEndTransparencyLayer(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_3, __IPHONE_2_0);

CG_EXTERN CGAffineTransform
    CGContextGetUserSpaceToDeviceSpaceTransform(CGContextRef cg_nullable c)
    CG_AVAILABLE_STARTING(__MAC_10_4, __IPHONE_2_0);

CG_EXTERN CGPoint CGContextConvertPointToDeviceSpace(CGContextRef cg_nullable c,
    CGPoint point)
    CG_AVAILABLE_STARTING(__MAC_10_4, __IPHONE_2_0);

CG_EXTERN CGPoint CGContextConvertPointToUserSpace(CGContextRef cg_nullable c,
    CGPoint point)
    CG_AVAILABLE_STARTING(__MAC_10_4, __IPHONE_2_0);

CG_EXTERN CGSize CGContextConvertSizeToDeviceSpace(CGContextRef cg_nullable c,
    CGSize size)
    CG_AVAILABLE_STARTING(__MAC_10_4, __IPHONE_2_0);

CG_EXTERN CGSize CGContextConvertSizeToUserSpace(CGContextRef cg_nullable c,
    CGSize size)
    CG_AVAILABLE_STARTING(__MAC_10_4, __IPHONE_2_0);

CG_EXTERN CGRect CGContextConvertRectToDeviceSpace(CGContextRef cg_nullable c,
    CGRect rect)
    CG_AVAILABLE_STARTING(__MAC_10_4, __IPHONE_2_0);

CG_EXTERN CGRect CGContextConvertRectToUserSpace(CGContextRef cg_nullable c,
    CGRect rect)
    CG_AVAILABLE_STARTING(__MAC_10_4, __IPHONE_2_0);

CG_EXTERN void CGContextSelectFont(CGContextRef cg_nullable c,
    const char * cg_nullable name, CGFloat size, CGTextEncoding textEncoding)
    CG_AVAILABLE_BUT_DEPRECATED(__MAC_10_0, __MAC_10_9,
                                __IPHONE_2_0, __IPHONE_7_0);


CG_EXTERN void CGContextShowText(CGContextRef cg_nullable c,
    const char * cg_nullable string, size_t length)
    CG_AVAILABLE_BUT_DEPRECATED(__MAC_10_0, __MAC_10_9,
                                __IPHONE_2_0, __IPHONE_7_0);

CG_EXTERN void CGContextShowTextAtPoint(CGContextRef cg_nullable c,
    CGFloat x, CGFloat y, const char * cg_nullable string, size_t length)
    CG_AVAILABLE_BUT_DEPRECATED(__MAC_10_0, __MAC_10_9,
                                __IPHONE_2_0, __IPHONE_7_0);


CG_EXTERN void CGContextShowGlyphs(CGContextRef cg_nullable c,
    const CGGlyph * __nullable g, size_t count)
    CG_AVAILABLE_BUT_DEPRECATED(__MAC_10_0, __MAC_10_9,

CG_EXTERN void CGContextShowGlyphsAtPoint(CGContextRef cg_nullable c, CGFloat x,
    CGFloat y, const CGGlyph * __nullable glyphs, size_t count)
    CG_AVAILABLE_BUT_DEPRECATED(__MAC_10_0, __MAC_10_9,
                                __IPHONE_2_0, __IPHONE_7_0);

CG_EXTERN void CGContextShowGlyphsWithAdvances(CGContextRef cg_nullable c,
    const CGGlyph * __nullable glyphs, const CGSize * __nullable advances,
    size_t count)
    CG_AVAILABLE_BUT_DEPRECATED(__MAC_10_3, __MAC_10_9,
                                __IPHONE_2_0, __IPHONE_7_0);

CG_EXTERN void CGContextDrawPDFDocument(CGContextRef cg_nullable c, CGRect rect,
    CGPDFDocumentRef cg_nullable document, int page)
    CG_AVAILABLE_BUT_DEPRECATED(__MAC_10_0, __MAC_10_5,
                                __IPHONE_NA, __IPHONE_NA);
CGContext.h

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