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564 lines
12 KiB
564 lines
12 KiB
5 years ago
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/*
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File: CGGeometry.h
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Contains: CoreGraphics geometry
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Version: QuickTime 7.3
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Copyright: (c) 2007 (c) 2000-2001 by Apple Computer, Inc., all rights reserved.
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Bugs?: For bug reports, consult the following page on
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the World Wide Web:
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http://developer.apple.com/bugreporter/
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*/
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#ifndef CGGEOMETRY_H_
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#define CGGEOMETRY_H_
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#ifndef __CGBASE__
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#include <CGBase.h>
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#endif
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#if PRAGMA_ONCE
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#pragma once
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if PRAGMA_IMPORT
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#pragma import on
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#endif
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#if PRAGMA_STRUCT_ALIGN
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#pragma options align=mac68k
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#elif PRAGMA_STRUCT_PACKPUSH
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#pragma pack(push, 2)
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#elif PRAGMA_STRUCT_PACK
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#pragma pack(2)
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#endif
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#if PRAGMA_ENUM_ALWAYSINT
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#if defined(__fourbyteints__) && !__fourbyteints__
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#define __CGGEOMETRY__RESTORE_TWOBYTEINTS
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#pragma fourbyteints on
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#endif
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#pragma enumsalwaysint on
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#elif PRAGMA_ENUM_OPTIONS
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#pragma option enum=int
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#elif PRAGMA_ENUM_PACK
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#if __option(pack_enums)
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#define __CGGEOMETRY__RESTORE_PACKED_ENUMS
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#pragma options(!pack_enums)
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#endif
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#endif
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/* Points. */
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struct CGPoint {
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float x;
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float y;
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};
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typedef struct CGPoint CGPoint;
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/* Sizes. */
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struct CGSize {
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float width;
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float height;
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};
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typedef struct CGSize CGSize;
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/* Rectangles. */
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struct CGRect {
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CGPoint origin;
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CGSize size;
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};
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typedef struct CGRect CGRect;
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/* Rectangle edges. */
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enum CGRectEdge {
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CGRectMinXEdge = 0,
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CGRectMinYEdge = 1,
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CGRectMaxXEdge = 2,
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CGRectMaxYEdge = 3
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};
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typedef enum CGRectEdge CGRectEdge;
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#if TARGET_OS_MAC
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/* The "zero" point -- equivalent to CGPointMake(0, 0). */
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/*
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* CGPointZero
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: not available
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* Mac OS X: in version 10.0 and later
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*/
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extern const CGPoint CGPointZero;
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/* The "zero" size -- equivalent to CGSizeMake(0, 0). */
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/*
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* CGSizeZero
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: not available
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* Mac OS X: in version 10.0 and later
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*/
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extern const CGSize CGSizeZero;
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/* The "zero" rectangle -- equivalent to CGRectMake(0, 0, 0, 0). */
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/*
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* CGRectZero
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: not available
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* Mac OS X: in version 10.0 and later
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*/
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extern const CGRect CGRectZero;
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/* The "empty" rect. This is the rectangle returned when, for example, we
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* intersect two disjoint rectangles. Note that the null rect is not the
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* same as the zero rect. */
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/*
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* CGRectNull
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: not available
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* Mac OS X: in version 10.0 and later
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*/
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extern const CGRect CGRectNull;
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#else
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#define CGPointZero CGPointMake(0, 0)
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#define CGSizeZero CGSizeMake(0, 0)
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#define CGRectZero CGRectMake(0, 0, 0, 0)
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#define CGRectNull CGRectMake(INFINITY, INFINITY, 0, 0)
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#endif
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/* Make a point from `(x, y)'. */
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/*
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* CGPointMake()
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: not available
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( CGPoint )
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CGPointMake(
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float x,
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float y);
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/* Make a size from `(width, height)'. */
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/*
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* CGSizeMake()
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: not available
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( CGSize )
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CGSizeMake(
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float width,
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float height);
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/* Make a rect from `(x, y; width, height)'. */
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/*
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* CGRectMake()
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: not available
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( CGRect )
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CGRectMake(
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float x,
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float y,
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float width,
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float height);
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/* Return the leftmost x-value of `rect'. */
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/*
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* CGRectGetMinX()
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: not available
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( float )
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CGRectGetMinX(CGRect rect);
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/* Return the midpoint x-value of `rect'. */
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/*
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* CGRectGetMidX()
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: not available
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( float )
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CGRectGetMidX(CGRect rect);
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/* Return the rightmost x-value of `rect'. */
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/*
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* CGRectGetMaxX()
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: not available
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( float )
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CGRectGetMaxX(CGRect rect);
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/* Return the bottommost y-value of `rect'. */
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/*
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* CGRectGetMinY()
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: not available
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( float )
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CGRectGetMinY(CGRect rect);
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/* Return the midpoint y-value of `rect'. */
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/*
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* CGRectGetMidY()
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: not available
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( float )
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CGRectGetMidY(CGRect rect);
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/* Return the topmost y-value of `rect'. */
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/*
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* CGRectGetMaxY()
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: not available
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( float )
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CGRectGetMaxY(CGRect rect);
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/* Return the width of `rect'. */
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/*
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* CGRectGetWidth()
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: not available
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( float )
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CGRectGetWidth(CGRect rect);
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/* Return the height of `rect'. */
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/*
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* CGRectGetHeight()
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: not available
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( float )
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CGRectGetHeight(CGRect rect);
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/* Return 1 if `point1' and `point2' are the same, 0 otherwise. */
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/*
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* CGPointEqualToPoint()
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: not available
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( int )
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CGPointEqualToPoint(
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CGPoint point1,
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CGPoint point2);
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/* Return 1 if `size1' and `size2' are the same, 0 otherwise. */
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/*
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* CGSizeEqualToSize()
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: not available
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( int )
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CGSizeEqualToSize(
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CGSize size1,
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CGSize size2);
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/* Return 1 if `rect1' and `rect2' are the same, 0 otherwise. */
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/*
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* CGRectEqualToRect()
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*
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* Availability:
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* Non-Carbon CFM: not available
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||
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* CarbonLib: not available
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( int )
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CGRectEqualToRect(
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CGRect rect1,
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CGRect rect2);
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/* Standardize `rect' -- i.e., convert it to an equivalent rect which has
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* positive width and height. */
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/*
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* CGRectStandardize()
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*
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* Availability:
|
||
|
|
* Non-Carbon CFM: not available
|
||
|
|
* CarbonLib: not available
|
||
|
|
* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( CGRect )
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CGRectStandardize(CGRect rect);
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/* Return 1 if `rect' is empty -- i.e., if it has zero width or height. A
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* null rect is defined to be empty. */
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/*
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* CGRectIsEmpty()
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*
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||
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|
* Availability:
|
||
|
|
* Non-Carbon CFM: not available
|
||
|
|
* CarbonLib: not available
|
||
|
|
* Mac OS X: in version 10.0 and later
|
||
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*/
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EXTERN_API_C( int )
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CGRectIsEmpty(CGRect rect);
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/* Return 1 if `rect' is null -- e.g., the result of intersecting two
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||
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* disjoint rectangles is a null rect. */
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||
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/*
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||
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* CGRectIsNull()
|
||
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*
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||
|
|
* Availability:
|
||
|
|
* Non-Carbon CFM: not available
|
||
|
|
* CarbonLib: not available
|
||
|
|
* Mac OS X: in version 10.0 and later
|
||
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|
*/
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||
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EXTERN_API_C( int )
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CGRectIsNull(CGRect rect);
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||
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/* Inset `rect' by `(dx, dy)' -- i.e., offset its origin by `(dx, dy)', and
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* decrease its size by `(2*dx, 2*dy)'. */
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||
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/*
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||
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* CGRectInset()
|
||
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|
*
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||
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|
* Availability:
|
||
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|
* Non-Carbon CFM: not available
|
||
|
|
* CarbonLib: not available
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||
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|
* Mac OS X: in version 10.0 and later
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||
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*/
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EXTERN_API_C( CGRect )
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CGRectInset(
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CGRect rect,
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||
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float dx,
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||
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float dy);
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||
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|
||
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||
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/* Expand `rect' to the smallest rect containing it with integral origin
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||
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* and size. */
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||
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/*
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||
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* CGRectIntegral()
|
||
|
|
*
|
||
|
|
* Availability:
|
||
|
|
* Non-Carbon CFM: not available
|
||
|
|
* CarbonLib: not available
|
||
|
|
* Mac OS X: in version 10.0 and later
|
||
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*/
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||
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EXTERN_API_C( CGRect )
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||
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CGRectIntegral(CGRect rect);
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||
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||
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/* Return the union of `r1' and `r2'. */
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||
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/*
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||
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* CGRectUnion()
|
||
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*
|
||
|
|
* Availability:
|
||
|
|
* Non-Carbon CFM: not available
|
||
|
|
* CarbonLib: not available
|
||
|
|
* Mac OS X: in version 10.0 and later
|
||
|
|
*/
|
||
|
|
EXTERN_API_C( CGRect )
|
||
|
|
CGRectUnion(
|
||
|
|
CGRect r1,
|
||
|
|
CGRect r2);
|
||
|
|
|
||
|
|
|
||
|
|
/* Return the intersection of `r1' and `r2'. This may return a null
|
||
|
|
* rect. */
|
||
|
|
/*
|
||
|
|
* CGRectIntersection()
|
||
|
|
*
|
||
|
|
* Availability:
|
||
|
|
* Non-Carbon CFM: not available
|
||
|
|
* CarbonLib: not available
|
||
|
|
* Mac OS X: in version 10.0 and later
|
||
|
|
*/
|
||
|
|
EXTERN_API_C( CGRect )
|
||
|
|
CGRectIntersection(
|
||
|
|
CGRect r1,
|
||
|
|
CGRect r2);
|
||
|
|
|
||
|
|
|
||
|
|
/* Offset `rect' by `(dx, dy)'. */
|
||
|
|
/*
|
||
|
|
* CGRectOffset()
|
||
|
|
*
|
||
|
|
* Availability:
|
||
|
|
* Non-Carbon CFM: not available
|
||
|
|
* CarbonLib: not available
|
||
|
|
* Mac OS X: in version 10.0 and later
|
||
|
|
*/
|
||
|
|
EXTERN_API_C( CGRect )
|
||
|
|
CGRectOffset(
|
||
|
|
CGRect rect,
|
||
|
|
float dx,
|
||
|
|
float dy);
|
||
|
|
|
||
|
|
|
||
|
|
/* Make two new rectangles, `slice' and `remainder', by dividing `rect'
|
||
|
|
* with a line that's parallel to one of its sides, specified by `edge' --
|
||
|
|
* either `CGRectMinXEdge', `CGRectMinYEdge', `CGRectMaxXEdge', or
|
||
|
|
* `CGRectMaxYEdge'. The size of `slice' is determined by `amount', which
|
||
|
|
* measures the distance from the specified edge. */
|
||
|
|
/*
|
||
|
|
* CGRectDivide()
|
||
|
|
*
|
||
|
|
* Availability:
|
||
|
|
* Non-Carbon CFM: not available
|
||
|
|
* CarbonLib: not available
|
||
|
|
* Mac OS X: in version 10.0 and later
|
||
|
|
*/
|
||
|
|
EXTERN_API_C( void )
|
||
|
|
CGRectDivide(
|
||
|
|
CGRect rect,
|
||
|
|
CGRect * slice,
|
||
|
|
CGRect * remainder,
|
||
|
|
float amount,
|
||
|
|
CGRectEdge edge);
|
||
|
|
|
||
|
|
|
||
|
|
/* Return 1 if `point' is contained in `rect', 0 otherwise. */
|
||
|
|
/*
|
||
|
|
* CGRectContainsPoint()
|
||
|
|
*
|
||
|
|
* Availability:
|
||
|
|
* Non-Carbon CFM: not available
|
||
|
|
* CarbonLib: not available
|
||
|
|
* Mac OS X: in version 10.0 and later
|
||
|
|
*/
|
||
|
|
EXTERN_API_C( int )
|
||
|
|
CGRectContainsPoint(
|
||
|
|
CGRect rect,
|
||
|
|
CGPoint point);
|
||
|
|
|
||
|
|
|
||
|
|
/* Return 1 if `rect2' is contained in `rect1', 0 otherwise. `rect2' is
|
||
|
|
* contained in `rect1' if the union of `rect1' and `rect2' is equal to
|
||
|
|
* `rect1'. */
|
||
|
|
/*
|
||
|
|
* CGRectContainsRect()
|
||
|
|
*
|
||
|
|
* Availability:
|
||
|
|
* Non-Carbon CFM: not available
|
||
|
|
* CarbonLib: not available
|
||
|
|
* Mac OS X: in version 10.0 and later
|
||
|
|
*/
|
||
|
|
EXTERN_API_C( int )
|
||
|
|
CGRectContainsRect(
|
||
|
|
CGRect rect1,
|
||
|
|
CGRect rect2);
|
||
|
|
|
||
|
|
|
||
|
|
/* Return 1 if `rect1' intersects `rect2', 0 otherwise. `rect1' intersects
|
||
|
|
* `rect2' if the intersection of `rect1' and `rect2' is not the null
|
||
|
|
* rect. */
|
||
|
|
/*
|
||
|
|
* CGRectIntersectsRect()
|
||
|
|
*
|
||
|
|
* Availability:
|
||
|
|
* Non-Carbon CFM: not available
|
||
|
|
* CarbonLib: not available
|
||
|
|
* Mac OS X: in version 10.0 and later
|
||
|
|
*/
|
||
|
|
EXTERN_API_C( int )
|
||
|
|
CGRectIntersectsRect(
|
||
|
|
CGRect rect1,
|
||
|
|
CGRect rect2);
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
#if PRAGMA_ENUM_ALWAYSINT
|
||
|
|
#pragma enumsalwaysint reset
|
||
|
|
#ifdef __CGGEOMETRY__RESTORE_TWOBYTEINTS
|
||
|
|
#pragma fourbyteints off
|
||
|
|
#endif
|
||
|
|
#elif PRAGMA_ENUM_OPTIONS
|
||
|
|
#pragma option enum=reset
|
||
|
|
#elif defined(__CGGEOMETRY__RESTORE_PACKED_ENUMS)
|
||
|
|
#pragma options(pack_enums)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if PRAGMA_STRUCT_ALIGN
|
||
|
|
#pragma options align=reset
|
||
|
|
#elif PRAGMA_STRUCT_PACKPUSH
|
||
|
|
#pragma pack(pop)
|
||
|
|
#elif PRAGMA_STRUCT_PACK
|
||
|
|
#pragma pack()
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef PRAGMA_IMPORT_OFF
|
||
|
|
#pragma import off
|
||
|
|
#elif PRAGMA_IMPORT
|
||
|
|
#pragma import reset
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* CGGEOMETRY_H_ */
|
||
|
|
|