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181 lines
4.7 KiB
181 lines
4.7 KiB
5 years ago
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/*
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File: QDPictToCGContext.h
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Contains: API to draw Quickdraw PICTs into CoreGraphics context
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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 __QDPICTTOCGCONTEXT__
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#define __QDPICTTOCGCONTEXT__
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#ifndef __CGCONTEXT__
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#include <CGContext.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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typedef struct QDPict* QDPictRef;
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/*
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Note: QuickDraw picture data typically comes in two forms: a PICT resource
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that begins the picture header data at the beginning of the resource and PICT
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files that begin with 512 bytes of arbitrary data, followed by
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the picture header data. For this reason, the routines that create a QDPictRef
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attempt to find the picture header data beginning at either the first byte
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of the data provided or at byte 513 of the data provided.
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Additionally the Picture Bounds must not be an empty rect.
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*/
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/* Create a QDPict reference, using `provider' to obtain the QDPict's data.
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* It is assumed that either the first byte or the 513th byte of data
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* in the file referenced by the URL is the first byte of the
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* picture header. If the URL does not begin PICT data at one
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* of these places in the data fork then the QDPictRef returned will be NULL.
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*/
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/*
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* QDPictCreateWithProvider()
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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( QDPictRef )
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QDPictCreateWithProvider(CGDataProviderRef provider);
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/* Create a QDPict reference from `url'.
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* It is assumed that either the first byte or the 513th byte of data
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* in the file referenced by the URL is the first byte of the
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* picture header. If the URL does not begin PICT data at one
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* of these places in the data fork then the QDPictRef returned will be NULL.
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*/
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/*
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* QDPictCreateWithURL()
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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( QDPictRef )
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QDPictCreateWithURL(CFURLRef url);
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/* Increment the retain count of `pictRef' and return it. All
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* pictRefs are created with an initial retain count of 1. */
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/*
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* QDPictRetain()
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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( QDPictRef )
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QDPictRetain(QDPictRef pictRef);
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/* Decrement the retain count of `pictRef'. If the retain count reaches 0,
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* then free it and any associated resources. */
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/*
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* QDPictRelease()
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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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QDPictRelease(QDPictRef pictRef);
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/* Return the Picture Bounds of the QuickDraw picture represented by `pictRef'. This
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rectangle is in the default user space with one unit = 1/72 inch.
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*/
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/*
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* QDPictGetBounds()
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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( CGRect )
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QDPictGetBounds(QDPictRef pictRef);
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/* Return the resolution of the QuickDraw picture represented by `pictRef'.
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This data, together with the CGRect returned by QDPictGetBounds, can be
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used to compute the size of the picture in pixels, which is what QuickDraw
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really records into pictures.
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*/
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/*
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* QDPictGetResolution()
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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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QDPictGetResolution(
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QDPictRef pictRef,
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float * xRes,
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float * yRes);
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/* Draw `pictRef' in the rectangular area specified by `rect'.
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* The PICT bounds of the page is scaled, if necessary, to fit into
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* `rect'. To get unscaled results, supply a rect the size of the rect
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* returned by QDPictGetBounds.
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*/
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/*
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* QDPictDrawToCGContext()
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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( OSStatus )
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QDPictDrawToCGContext(
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CGContextRef ctx,
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CGRect rect,
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QDPictRef pictRef);
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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 /* __QDPICTTOCGCONTEXT__ */
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