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187 lines
4.7 KiB
C
187 lines
4.7 KiB
C
/*
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File: CGPattern.h
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Contains: CoreGraphics base types
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Version: QuickTime 7.3
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Copyright: (c) 2007 (c) 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 CGPATTERN_H_
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#define CGPATTERN_H_
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#ifndef __CGBASE__
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#include <CGBase.h>
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#endif
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#ifndef __CGCONTEXT__
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#include <CGContext.h>
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#endif
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/* kCGPatternTilingNoDistortion: The pattern cell is not distorted when
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* painted, however the spacing between pattern cells may vary by as much
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* as 1 device pixel.
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*
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* kCGPatternTilingConstantSpacingMinimalDistortion: Pattern cells are
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* spaced consistently, however the pattern cell may be distorted by as
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* much as 1 device pixel when the pattern is painted.
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*
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* kCGPatternTilingConstantSpacing: Pattern cells are spaced consistently
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* as with kCGPatternTilingConstantSpacingMinimalDistortion, however the
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* pattern cell may be distorted additionally to permit a more efficient
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* implementation. */
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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 __CGPATTERN__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 __CGPATTERN__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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enum CGPatternTiling {
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kCGPatternTilingNoDistortion = 0,
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kCGPatternTilingConstantSpacingMinimalDistortion = 1,
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kCGPatternTilingConstantSpacing = 2
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};
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typedef enum CGPatternTiling CGPatternTiling;
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/* The drawing of the pattern is delegated to the callbacks. The callbacks
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* may be called one or many times to draw the pattern.
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*
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* `version' is the version number of the structure passed in as a
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* parameter to the CGPattern creation functions. The structure defined
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* below is version 0.
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*
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* `drawPattern' should draw the pattern in the context `c'. `info' is the
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* parameter originally passed to the CGPattern creation functions.
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*
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* `releaseInfo' is called when the pattern is deallocated. */
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typedef CALLBACK_API_C( void , CGDrawPatternProcPtr )(void *info, CGContextRef c);
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typedef CALLBACK_API_C( void , CGReleaseInfoProcPtr )(void * info);
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struct CGPatternCallbacks {
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unsigned int version;
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CGDrawPatternProcPtr drawPattern;
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CGReleaseInfoProcPtr releaseInfo;
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};
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typedef struct CGPatternCallbacks CGPatternCallbacks;
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/* Create a pattern. */
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/*
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* CGPatternCreate()
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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 10.1 and later
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*/
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EXTERN_API_C( CGPatternRef )
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CGPatternCreate(
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void * info,
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CGRect bounds,
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CGAffineTransform matrix,
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float xStep,
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float yStep,
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CGPatternTiling tiling,
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int isColored,
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const CGPatternCallbacks * callbacks);
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/* Increment the retain count of `pattern' and return it. All patterns are
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* created with an initial retain count of 1. */
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/*
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* CGPatternRetain()
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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 10.1 and later
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*/
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EXTERN_API_C( CGPatternRef )
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CGPatternRetain(CGPatternRef pattern);
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/* Decrement the retain count of `pattern'. If the retain count reaches 0,
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* then free it and release any associated resources. */
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/*
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* CGPatternRelease()
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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 10.1 and later
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*/
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EXTERN_API_C( void )
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CGPatternRelease(CGPatternRef pattern);
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#if PRAGMA_ENUM_ALWAYSINT
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#pragma enumsalwaysint reset
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#ifdef __CGPATTERN__RESTORE_TWOBYTEINTS
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#pragma fourbyteints off
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#endif
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#elif PRAGMA_ENUM_OPTIONS
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#pragma option enum=reset
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#elif defined(__CGPATTERN__RESTORE_PACKED_ENUMS)
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#pragma options(pack_enums)
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#endif
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#if PRAGMA_STRUCT_ALIGN
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#pragma options align=reset
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#elif PRAGMA_STRUCT_PACKPUSH
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#pragma pack(pop)
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#elif PRAGMA_STRUCT_PACK
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#pragma pack()
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#endif
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#ifdef PRAGMA_IMPORT_OFF
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#pragma import off
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#elif PRAGMA_IMPORT
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#pragma import reset
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* CGPATTERN_H_ */
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