Commit 1f7056f5 authored by David Turner's avatar David Turner
Browse files

adding glyph loader header file (previously in ftobjs.h)

parent 77cba45d
#ifndef __FT_INTERNAL_GLYPH_LOADER_H__
#define __FT_INTERNAL_GLYPH_LOADER_H__
#include <ft2build.h>
#include FT_FREETYPE_H
FT_BEGIN_HEADER
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** ****/
/**** G L Y P H L O A D E R ****/
/**** ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/* */
/* <Struct> */
/* FT_GlyphLoader */
/* */
/* <Description> */
/* The glyph loader is an internal object used to load several glyphs */
/* together (for example, in the case of composites). */
/* */
/* <Note> */
/* The glyph loader implementation is not part of the high-level API, */
/* hence the forward structure declaration. */
/* */
typedef struct FT_GlyphLoader_ FT_GlyphLoader ;
#define FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS 1
#define FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES 2
#define FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID 4
#define FT_SUBGLYPH_FLAG_SCALE 8
#define FT_SUBGLYPH_FLAG_XY_SCALE 0x40
#define FT_SUBGLYPH_FLAG_2X2 0x80
#define FT_SUBGLYPH_FLAG_USE_MY_METRICS 0x200
enum
{
FT_GLYPH_OWN_BITMAP = 1
};
typedef struct FT_SubGlyph_
{
FT_Int index;
FT_UShort flags;
FT_Int arg1;
FT_Int arg2;
FT_Matrix transform;
};
typedef struct FT_GlyphLoadRec_
{
FT_Outline outline; /* outline */
FT_Vector* extra_points; /* extra points table */
FT_UInt num_subglyphs; /* number of subglyphs */
FT_SubGlyph* subglyphs; /* subglyphs */
} FT_GlyphLoadRec, *FT_GlyphLoad;
typedef struct FT_GlyphLoaderRec_
{
FT_Memory memory;
FT_UInt max_points;
FT_UInt max_contours;
FT_UInt max_subglyphs;
FT_Bool use_extra;
FT_GlyphLoadRec base;
FT_GlyphLoadRec current;
void* other; /* for possible future extension? */
} FT_GlyphLoaderRec;
/* create new empty glyph loader */
FT_BASE( FT_Error )
FT_GlyphLoader_New( FT_Memory memory,
FT_GlyphLoader *aloader );
/* add an extra points table to a glyph loader */
FT_BASE( FT_Error )
FT_GlyphLoader_Create_Extra( FT_GlyphLoader loader );
/* destroy a glyph loader */
FT_BASE( void )
FT_GlyphLoader_Done( FT_GlyphLoader loader );
/* reset a glyph loader (frees everything int it) */
FT_BASE( void )
FT_GlyphLoader_Reset( FT_GlyphLoader loader );
/* rewind a glyph loader */
FT_BASE( void )
FT_GlyphLoader_Rewind( FT_GlyphLoader loader );
/* check that there is enough room to add 'n_points' and 'n_contours' */
/* to the glyph loader.. */
FT_BASE( FT_Error )
FT_GlyphLoader_Check_Points( FT_GlyphLoader loader,
FT_UInt n_points,
FT_UInt n_contours );
/* check that there is enough room to add 'n_subs' sub-glyphs to */
/* a glyph loader */
FT_BASE( FT_Error )
FT_GlyphLoader_Check_Subglyphs( FT_GlyphLoader loader,
FT_UInt n_subs );
/* prepare a glyph loader, i.e. empty the current glyph */
FT_BASE( void )
FT_GlyphLoader_Prepare( FT_GlyphLoader loader );
/* add the current glyph to the base glyph */
FT_BASE( void )
FT_GlyphLoader_Add( FT_GlyphLoader loader );
/* copy points from one glyph loader to another */
FT_BASE( FT_Error )
FT_GlyphLoader_Copy_Points( FT_GlyphLoader target,
FT_GlyphLoader source );
/* */
FT_END_HEADER
#endif /* __FT_INTERNAL_GLYPH_LOADER_H__ */
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