141 lines
6.9 KiB
C
141 lines
6.9 KiB
C
/***************************************************************************/
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/* */
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/* t2gload.h */
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/* */
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/* OpenType Glyph Loader (specification). */
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/* */
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/* Copyright 1996-1999 by */
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/* David Turner, Robert Wilhelm, and Werner Lemberg. */
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/* */
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/* This file is part of the FreeType project, and may only be used */
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/* modified and distributed under the terms of the FreeType project */
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/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
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/* this file you indicate that you have read the license and */
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/* understand and accept it fully. */
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/* */
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/***************************************************************************/
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#ifndef T2GLOAD_H
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#define T2GLOAD_H
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#include <t2objs.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct T2_Loader_
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{
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T2_Face face;
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T2_Size size;
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T2_GlyphSlot glyph;
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FT_ULong load_flags;
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FT_UInt glyph_index;
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FT_Stream stream;
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FT_Int byte_len;
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FT_Int left_points;
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FT_Int left_contours;
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FT_BBox bbox;
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FT_Int left_bearing;
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FT_Int advance;
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FT_Bool preserve_pps;
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FT_Vector pp1;
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FT_Vector pp2;
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FT_ULong glyf_offset;
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/* the zone where we load our glyphs */
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FT_GlyphZone base;
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FT_GlyphZone zone;
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} T2_Loader;
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#if 0
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/*************************************************************************/
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/* */
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/* <Function> */
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/* T2_Get_Metrics */
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/* */
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/* <Description> */
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/* Returns the horizontal or vertical metrics in font units for a */
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/* given glyph. The metrics are the left side bearing (resp. top */
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/* side bearing) and advance width (resp. advance height). */
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/* */
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/* <Input> */
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/* header :: A pointer to either the horizontal or vertical metrics */
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/* structure. */
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/* */
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/* index :: The glyph index. */
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/* */
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/* <Output> */
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/* bearing :: The bearing, either left side or top side. */
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/* */
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/* advance :: The advance width resp. advance height. */
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/* */
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/* <Note> */
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/* This function will much probably move to another component in the */
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/* near future, but I haven't decided which yet. */
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/* */
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LOCAL_DEF
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void T2_Get_Metrics( TT_HoriHeader* header,
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FT_UInt index,
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FT_Short* bearing,
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FT_UShort* advance );
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/*************************************************************************/
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/* */
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/* <Function> */
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/* T2_Load_Glyph */
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/* */
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/* <Description> */
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/* A function used to load a single glyph within a given glyph slot, */
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/* for a given size. */
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/* */
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/* <Input> */
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/* glyph :: A handle to a target slot object where the glyph */
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/* will be loaded. */
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/* */
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/* size :: A handle to the source face size at which the glyph */
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/* must be scaled/loaded. */
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/* */
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/* glyph_index :: The index of the glyph in the font file. */
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/* */
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/* load_flags :: A flag indicating what to load for this glyph. The */
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/* FT_LOAD_XXX constants can be used to control the */
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/* glyph loading process (e.g., whether the outline */
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/* should be scaled, whether to load bitmaps or not, */
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/* whether to hint the outline, etc). */
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/* <Output> */
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/* result :: A set of bit flags indicating the type of data that */
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/* was loaded in the glyph slot (outline or bitmap, */
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/* etc). */
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/* */
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/* You can set this field to 0 if you don't want this */
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/* information. */
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/* */
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/* <Return> */
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/* FreeType error code. 0 means success. */
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/* */
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LOCAL_DEF
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FT_Error T2_Load_Glyph( T2_Size size,
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T2_GlyphSlot glyph,
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FT_UShort glyph_index,
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FT_UInt load_flags );
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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 /* T2GLOAD_H */
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/* END */
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