2 /* Copyright (C) 1989, 1990, 1991, 1992, 2002, 2004
3 Free Software Foundation, Inc.
4 Written by James Clark (jjc@jclark.com)
6 This file is part of groff.
8 groff is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 2, or (at your option) any later
13 groff is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License along
19 with groff; see the file COPYING. If not, write to the Free Software
20 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
22 typedef void (*FONT_COMMAND_HANDLER)(const char *, const char *,
25 struct font_kern_list;
26 struct font_char_metric;
27 struct font_widths_cache;
40 int contains(int index);
42 int get_width(int index, int point_size);
43 int get_height(int index, int point_size);
44 int get_depth(int index, int point_size);
45 int get_space_width(int point_size);
46 int get_character_type(int index);
47 int get_kern(int index1, int index2, int point_size);
48 int get_skew(int index, int point_size, int slant);
49 int has_ligature(int);
50 int get_italic_correction(int index, int point_size);
51 int get_left_italic_correction(int index, int point_size);
52 int get_subscript_correction(int index, int point_size);
54 const char *get_special_device_encoding(int index);
55 const char *get_name();
56 const char *get_internal_name();
58 static int scan_papersize(const char *, const char **, double *, double *);
60 static font *load_font(const char *, int *not_found = 0);
61 static void command_line_font_dir(const char *path);
62 static FILE *open_file(const char *name, char **pathp);
63 static int load_desc();
64 static int name_to_index(const char *);
65 static int number_to_index(int);
66 static FONT_COMMAND_HANDLER
67 set_unknown_desc_command_handler(FONT_COMMAND_HANDLER);
73 static int paperwidth;
74 static int paperlength;
75 static const char *papersize;
76 static int biggestfont;
80 static int pass_filenames;
81 static int use_charnames_in_special;
83 static const char **font_name_table;
84 static const char **style_table;
85 static const char *family;
89 font_kern_list **kern_hash_table;
100 font_widths_cache *widths_cache;
101 static FONT_COMMAND_HANDLER unknown_desc_command_handler;
103 enum { KERN_HASH_TABLE_SIZE = 503 };
105 void add_entry(int index, const font_char_metric &);
106 void copy_entry(int new_index, int old_index);
107 void add_kern(int index1, int index2, int amount);
108 static int hash_kern(int i1, int i2);
109 void alloc_ch_index(int);
113 static int scale(int w, int pointsize);
114 static int unit_scale(double *value, char unit);
115 virtual void handle_unknown_font_command(const char *command,
117 const char *file, int lineno);
120 int load(int *not_found = 0);