1  /* Copyright(c) 2007 Christopher J. W. Lloyd
  2  
  3  Permission is hereby granted, free of charge, to any person obtaining a copy of
  4  this software and associated documentation files(the "Software"), to deal in the
  5  Software without restriction, including without limitation the rights to use,
  6  copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
  7  Software, and to permit persons to whom the Software is furnished to do so,
  8  subject to the following conditions:
  9  
 10  The above copyright notice and this permission notice shall be included in all
 11  copies or substantial portions of the Software.
 12  
 13  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 14  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 15  FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 16  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 17  IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 18  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
 19  
 20  #import <CoreGraphics/CGAffineTransform.h>
 21  #import <CoreGraphics/CGGeometry.h>
 22  #import <CoreGraphics/CoreGraphicsExport.h>
 23  
 24  typedef enum {
 25      kCGPathElementMoveToPoint,
 26      kCGPathElementAddLineToPoint,
 27      kCGPathElementAddQuadCurveToPoint,
 28      kCGPathElementAddCurveToPoint,
 29      kCGPathElementCloseSubpath,
 30  } CGPathElementType;
 31  
 32  typedef struct {
 33      CGPathElementType type;
 34      CGPoint *points;
 35  } CGPathElement;
 36  
 37  typedef void (*CGPathApplierFunction)(void *info, const CGPathElement *element);
 38  
 39  typedef struct CF_BRIDGED_TYPE(id) O2MutablePath *CGPathRef;
 40  typedef struct CF_BRIDGED_TYPE(id) O2MutablePath *CGMutablePathRef;
 41  
 42  CF_IMPLICIT_BRIDGING_ENABLED
 43  
 44  COREGRAPHICS_EXPORT void CGPathRelease(CGPathRef self);
 45  COREGRAPHICS_EXPORT CGPathRef CGPathRetain(CGPathRef self);
 46  
 47  COREGRAPHICS_EXPORT bool CGPathEqualToPath(CGPathRef self, CGPathRef other);
 48  COREGRAPHICS_EXPORT CGRect CGPathGetBoundingBox(CGPathRef self);
 49  COREGRAPHICS_EXPORT CGPoint CGPathGetCurrentPoint(CGPathRef self);
 50  COREGRAPHICS_EXPORT bool CGPathIsEmpty(CGPathRef self);
 51  COREGRAPHICS_EXPORT bool CGPathIsRect(CGPathRef self, CGRect *rect);
 52  COREGRAPHICS_EXPORT void CGPathApply(CGPathRef self, void *info,
 53                                       CGPathApplierFunction function);
 54  COREGRAPHICS_EXPORT CGMutablePathRef CGPathCreateMutableCopy(CGPathRef self);
 55  COREGRAPHICS_EXPORT CGPathRef CGPathCreateCopy(CGPathRef self);
 56  COREGRAPHICS_EXPORT bool CGPathContainsPoint(CGPathRef self,
 57                                               const CGAffineTransform *xform,
 58                                               CGPoint point, bool evenOdd);
 59  
 60  COREGRAPHICS_EXPORT CGMutablePathRef CGPathCreateMutable(void);
 61  
 62  COREGRAPHICS_EXPORT void CGPathMoveToPoint(CGMutablePathRef self,
 63                                             const CGAffineTransform *xform,
 64                                             CGFloat x, CGFloat y);
 65  COREGRAPHICS_EXPORT void CGPathAddLineToPoint(CGMutablePathRef self,
 66                                                const CGAffineTransform *xform,
 67                                                CGFloat x, CGFloat y);
 68  COREGRAPHICS_EXPORT void CGPathAddCurveToPoint(CGMutablePathRef self,
 69                                                 const CGAffineTransform *xform,
 70                                                 CGFloat cp1x, CGFloat cp1y,
 71                                                 CGFloat cp2x, CGFloat cp2y,
 72                                                 CGFloat x, CGFloat y);
 73  COREGRAPHICS_EXPORT void
 74  CGPathAddQuadCurveToPoint(CGMutablePathRef self, const CGAffineTransform *xform,
 75                            CGFloat cpx, CGFloat cpy, CGFloat x, CGFloat y);
 76  COREGRAPHICS_EXPORT void CGPathCloseSubpath(CGMutablePathRef self);
 77  
 78  COREGRAPHICS_EXPORT void CGPathAddLines(CGMutablePathRef self,
 79                                          const CGAffineTransform *xform,
 80                                          const CGPoint *points, size_t count);
 81  COREGRAPHICS_EXPORT void CGPathAddRect(CGMutablePathRef self,
 82                                         const CGAffineTransform *xform,
 83                                         CGRect rect);
 84  COREGRAPHICS_EXPORT void CGPathAddRects(CGMutablePathRef self,
 85                                          const CGAffineTransform *xform,
 86                                          const CGRect *rects, size_t count);
 87  
 88  COREGRAPHICS_EXPORT void CGPathAddArc(CGMutablePathRef self,
 89                                        const CGAffineTransform *xform, CGFloat x,
 90                                        CGFloat y, CGFloat radius,
 91                                        CGFloat startRadian, CGFloat endRadian,
 92                                        bool clockwise);
 93  COREGRAPHICS_EXPORT void CGPathAddArcToPoint(CGMutablePathRef self,
 94                                               const CGAffineTransform *xform,
 95                                               CGFloat tx1, CGFloat ty1,
 96                                               CGFloat tx2, CGFloat ty2,
 97                                               CGFloat radius);
 98  
 99  COREGRAPHICS_EXPORT void CGPathAddEllipseInRect(CGMutablePathRef self,
100                                                  const CGAffineTransform *xform,
101                                                  CGRect rect);
102  
103  COREGRAPHICS_EXPORT void CGPathAddPath(CGMutablePathRef self,
104                                         const CGAffineTransform *xform,
105                                         CGPathRef other);
106  
107  COREGRAPHICS_EXPORT CGPathRef
108  CGPathCreateWithEllipseInRect(CGRect rect, const CGAffineTransform *transform);
109  
110  COREGRAPHICS_EXPORT CGPathRef
111  CGPathCreateWithRect(CGRect rect, const CGAffineTransform *transform);
112  
113  COREGRAPHICS_EXPORT CGRect CGPathGetPathBoundingBox(CGPathRef path);
114  
115  COREGRAPHICS_EXPORT CGPathRef CGPathCreateCopyByTransformingPath(
116          CGPathRef path, CGAffineTransform *transform);
117  
118  CF_IMPLICIT_BRIDGING_DISABLED