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/* Copyright (C) 1989, 1993, 1996, 1997 Aladdin Enterprises. All rights reserved.
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This software is provided AS-IS with no warranty, either express or
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implied.
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This software is distributed under license and may not be copied,
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modified or distributed except as expressly authorized under the terms
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of the license contained in the file LICENSE in this distribution.
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For more information about licensing, please refer to
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http://www.ghostscript.com/licensing/. For information on
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commercial licensing, go to http://www.artifex.com/licensing/ or
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contact Artifex Software, Inc., 101 Lucas Valley Road #110,
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San Rafael, CA 94903, U.S.A., +1(415)492-9861.
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*/
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/* $Id: gsfont.h,v 1.12 2005/07/27 11:24:38 igor Exp $ */
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/* Generic font and font cache interface */
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#ifndef gsfont_INCLUDED
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# define gsfont_INCLUDED
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#ifndef gs_matrix_DEFINED
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# define gs_matrix_DEFINED
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typedef struct gs_matrix_s gs_matrix;
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#endif
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/* A 'font directory' object (to avoid making fonts global). */
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/* 'directory' is something of a misnomer: this structure */
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/* just keeps track of the defined fonts, and the scaled font and */
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/* rendered character caches. */
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#ifndef gs_font_dir_DEFINED
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# define gs_font_dir_DEFINED
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typedef struct gs_font_dir_s gs_font_dir;
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#endif
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/* Font objects */
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#ifndef gs_font_DEFINED
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# define gs_font_DEFINED
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typedef struct gs_font_s gs_font;
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#endif
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/* Initialization */
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/* These procedures return 0 if they fail. */
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gs_font_dir *gs_font_dir_alloc2(gs_memory_t * struct_mem,
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gs_memory_t * bits_mem);
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gs_font_dir *gs_font_dir_alloc2_limits(gs_memory_t * struct_mem,
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gs_memory_t * bits_mem,
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uint smax, uint bmax, uint mmax,
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uint cmax, uint upper);
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/* Backward compatibility */
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#define gs_font_dir_alloc(mem) gs_font_dir_alloc2(mem, mem)
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#define gs_font_dir_alloc_limits(mem, smax, bmax, mmax, cmax, upper)\
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gs_font_dir_alloc2_limits(mem, mem, smax, bmax, mmax, cmax, upper)
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/* Font manipulations */
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/* Use gs_definefont only with original (unscaled) fonts! */
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int gs_definefont(gs_font_dir *, gs_font *);
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/* Find a sililar registered font of same type. */
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int gs_font_find_similar(const gs_font_dir * pdir, const gs_font **ppfont,
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int (*similar)(const gs_font *, const gs_font *));
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/* gs_scalefont and gs_makefont return 0 if the scaled font */
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/* was already in the cache, 1 if a new font was created. */
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int gs_scalefont(gs_font_dir *, const gs_font *, floatp, gs_font **);
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int gs_makefont(gs_font_dir *, const gs_font *, const gs_matrix *, gs_font **);
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int gs_setfont(gs_state *, gs_font *);
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gs_font *gs_currentfont(const gs_state *);
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gs_font *gs_rootfont(const gs_state *);
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void gs_set_currentfont(gs_state *, gs_font *);
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void gs_purge_font(gs_font *);
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/* Locate a gs_font by gs_id. */
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gs_font *gs_find_font_by_id(gs_font_dir *pdir, gs_id id, gs_matrix *FontMatrix);
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/* Font cache parameter operations */
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void gs_cachestatus(const gs_font_dir *, uint[7]);
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#define gs_setcachelimit(pdir,limit) gs_setcacheupper(pdir,limit)
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uint gs_currentcachesize(const gs_font_dir *);
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int gs_setcachesize(gs_font_dir *, uint);
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uint gs_currentcachelower(const gs_font_dir *);
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int gs_setcachelower(gs_font_dir *, uint);
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uint gs_currentcacheupper(const gs_font_dir *);
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int gs_setcacheupper(gs_font_dir *, uint);
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uint gs_currentaligntopixels(const gs_font_dir *);
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int gs_setaligntopixels(gs_font_dir *, uint);
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uint gs_currentgridfittt(const gs_font_dir *);
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int gs_setgridfittt(gs_font_dir *, uint);
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#endif /* gsfont_INCLUDED */
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