2002-02-22 18:57:35 +01:00
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#ifndef __FT_INTERNAL_GLYPH_LOADER_H__
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#define __FT_INTERNAL_GLYPH_LOADER_H__
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#include <ft2build.h>
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#include FT_FREETYPE_H
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FT_BEGIN_HEADER
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/**** ****/
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/**** ****/
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/**** G L Y P H L O A D E R ****/
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/**** ****/
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/**** ****/
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/* */
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/* <Struct> */
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/* FT_GlyphLoader */
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/* */
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/* <Description> */
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/* The glyph loader is an internal object used to load several glyphs */
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/* together (for example, in the case of composites). */
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/* */
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/* <Note> */
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/* The glyph loader implementation is not part of the high-level API, */
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/* hence the forward structure declaration. */
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/* */
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2002-02-24 03:59:24 +01:00
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typedef struct FT_GlyphLoaderRec_* FT_GlyphLoader ;
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2002-02-22 18:57:35 +01:00
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#define FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS 1
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#define FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES 2
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#define FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID 4
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#define FT_SUBGLYPH_FLAG_SCALE 8
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#define FT_SUBGLYPH_FLAG_XY_SCALE 0x40
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#define FT_SUBGLYPH_FLAG_2X2 0x80
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#define FT_SUBGLYPH_FLAG_USE_MY_METRICS 0x200
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enum
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{
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FT_GLYPH_OWN_BITMAP = 1
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};
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2002-03-14 13:56:35 +01:00
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typedef struct FT_SubGlyphRec_
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2002-02-22 18:57:35 +01:00
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{
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FT_Int index;
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FT_UShort flags;
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FT_Int arg1;
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FT_Int arg2;
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FT_Matrix transform;
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2002-03-14 13:56:35 +01:00
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} FT_SubGlyphRec;
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2002-02-22 18:57:35 +01:00
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typedef struct FT_GlyphLoadRec_
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{
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FT_Outline outline; /* outline */
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FT_Vector* extra_points; /* extra points table */
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FT_UInt num_subglyphs; /* number of subglyphs */
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2002-03-14 13:56:35 +01:00
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FT_SubGlyph subglyphs; /* subglyphs */
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2002-02-22 18:57:35 +01:00
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} FT_GlyphLoadRec, *FT_GlyphLoad;
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typedef struct FT_GlyphLoaderRec_
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{
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FT_Memory memory;
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FT_UInt max_points;
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FT_UInt max_contours;
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FT_UInt max_subglyphs;
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FT_Bool use_extra;
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FT_GlyphLoadRec base;
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FT_GlyphLoadRec current;
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void* other; /* for possible future extension? */
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} FT_GlyphLoaderRec;
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/* create new empty glyph loader */
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FT_BASE( FT_Error )
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FT_GlyphLoader_New( FT_Memory memory,
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2002-02-24 03:59:24 +01:00
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FT_GlyphLoader *aloader );
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2002-02-22 18:57:35 +01:00
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/* add an extra points table to a glyph loader */
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FT_BASE( FT_Error )
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2002-03-14 13:56:35 +01:00
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FT_GlyphLoader_CreateExtra( FT_GlyphLoader loader );
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2002-02-22 18:57:35 +01:00
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/* destroy a glyph loader */
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FT_BASE( void )
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FT_GlyphLoader_Done( FT_GlyphLoader loader );
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/* reset a glyph loader (frees everything int it) */
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FT_BASE( void )
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FT_GlyphLoader_Reset( FT_GlyphLoader loader );
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/* rewind a glyph loader */
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FT_BASE( void )
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FT_GlyphLoader_Rewind( FT_GlyphLoader loader );
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/* check that there is enough room to add 'n_points' and 'n_contours' */
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/* to the glyph loader.. */
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FT_BASE( FT_Error )
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2002-03-14 13:56:35 +01:00
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FT_GlyphLoader_CheckPoints( FT_GlyphLoader loader,
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FT_UInt n_points,
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FT_UInt n_contours );
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2002-02-22 18:57:35 +01:00
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/* check that there is enough room to add 'n_subs' sub-glyphs to */
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/* a glyph loader */
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FT_BASE( FT_Error )
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2002-03-14 13:56:35 +01:00
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FT_GlyphLoader_CheckSubGlyphs( FT_GlyphLoader loader,
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FT_UInt n_subs );
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2002-02-22 18:57:35 +01:00
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/* prepare a glyph loader, i.e. empty the current glyph */
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FT_BASE( void )
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FT_GlyphLoader_Prepare( FT_GlyphLoader loader );
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/* add the current glyph to the base glyph */
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FT_BASE( void )
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FT_GlyphLoader_Add( FT_GlyphLoader loader );
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/* copy points from one glyph loader to another */
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FT_BASE( FT_Error )
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2002-03-14 13:56:35 +01:00
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FT_GlyphLoader_CopyPoints( FT_GlyphLoader target,
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FT_GlyphLoader source );
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2002-02-22 18:57:35 +01:00
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/* */
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FT_END_HEADER
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#endif /* __FT_INTERNAL_GLYPH_LOADER_H__ */
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