2 /* Copyright (C) 1989, 1990, 1991, 1992, 2002 Free Software Foundation, Inc.
3 Written by James Clark (jjc@jclark.com)
5 This file is part of groff.
7 groff is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 groff is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License along
18 with groff; see the file COPYING. If not, write to the Free Software
19 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21 typedef void (*FONT_COMMAND_HANDLER)(const char *, const char *,
24 struct font_kern_list;
25 struct font_char_metric;
26 struct font_widths_cache;
39 int contains(int index);
41 int get_width(int index, int point_size);
42 int get_height(int index, int point_size);
43 int get_depth(int index, int point_size);
44 int get_space_width(int point_size);
45 int get_character_type(int index);
46 int get_kern(int index1, int index2, int point_size);
47 int get_skew(int index, int point_size, int slant);
48 int has_ligature(int);
49 int get_italic_correction(int index, int point_size);
50 int get_left_italic_correction(int index, int point_size);
51 int get_subscript_correction(int index, int point_size);
53 const char *get_special_device_encoding(int index);
54 const char *get_name();
55 const char *get_internal_name();
57 static int scan_papersize(const char *, const char **, double *, double *);
59 static font *load_font(const char *, int *not_found = 0);
60 static void command_line_font_dir(const char *path);
61 static FILE *open_file(const char *name, char **pathp);
62 static int load_desc();
63 static int name_to_index(const char *);
64 static int number_to_index(int);
65 static FONT_COMMAND_HANDLER
66 set_unknown_desc_command_handler(FONT_COMMAND_HANDLER);
72 static int paperwidth;
73 static int paperlength;
74 static const char *papersize;
75 static int biggestfont;
79 static int pass_filenames;
80 static int use_charnames_in_special;
82 static const char **font_name_table;
83 static const char **style_table;
84 static const char *family;
88 font_kern_list **kern_hash_table;
99 font_widths_cache *widths_cache;
100 static FONT_COMMAND_HANDLER unknown_desc_command_handler;
102 enum { KERN_HASH_TABLE_SIZE = 503 };
104 void add_entry(int index, const font_char_metric &);
105 void copy_entry(int new_index, int old_index);
106 void add_kern(int index1, int index2, int amount);
107 static int hash_kern(int i1, int i2);
108 void alloc_ch_index(int);
112 static int scale(int w, int pointsize);
113 static int unit_scale(double *value, char unit);
114 virtual void handle_unknown_font_command(const char *command,
116 const char *file, int lineno);
119 int load(int *not_found = 0);