2 afm-reader.cc -- implement Adobe_font_metric_file
4 source file of the GNU LilyPond music typesetter
6 (c) 1998--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #include "direction.hh"
12 #include "data-file.hh"
13 #include "string-convert.hh"
18 parse_box (Array<String> a)
22 b[X_AXIS][SMALLER] = a[i++].value_f ();
23 b[Y_AXIS][SMALLER] = a[i++].value_f ();
24 b[X_AXIS][BIGGER] = a[i++].value_f ();
25 b[Y_AXIS][BIGGER] = a[i++].value_f ();
30 strip_leading_white (String c)
35 c = c.cut_str (i, INT_MAX);
39 Adobe_font_char_metric
40 read_char_metric (String s, int size)
42 Adobe_font_char_metric char_metric;
43 char_metric.size_ = size;
44 Array<String> a= String_convert::split_arr (s, ';');
45 for (int i=0; i < a.size (); i++)
47 String c = strip_leading_white (a[i]);
49 Array<String> b = String_convert::split_arr (c, ' ');
53 char_metric.C_ = b[1].value_i ();
54 else if (b[0] == "WX")
55 char_metric.WX_ = b[1].value_f ();
57 char_metric.N_ = strip_leading_white (b[1]);
59 char_metric.B_ = parse_box (b.slice (1, b.size()));
65 Adobe_font_metric::read_char_metrics (Data_file &input, int size)
67 while (!input.eof_b ())
69 input.gobble_leading_white ();
70 String s= input.get_line ();
71 if (s == "EndCharMetrics")
73 Adobe_font_char_metric afm_char =read_char_metric (s, size);
74 char_metrics_.push (afm_char);
75 int i = char_metrics_.size ()-1;
77 // TFM files uses neg. charcodes to store Space
79 ascii_to_metric_idx_ [afm_char.C_] = i;
80 name_to_metric_dict_ [afm_char.N_] = i;
84 #define READSTRING(k) if (key == #k) { \
85 afm.k ## _ = input.get_line (); continue; }
86 #define READBOX(b) if (key == #b) { \
87 afm.b ## _ = read_box (input); continue; }
88 #define READREAL(r) if (key == #r) { \
89 afm.r ## _ = read_real (input); continue; }
92 read_real(Data_file &d)
94 String s = d.get_word ();
101 read_box ( Data_file &d)
104 b[X_AXIS][SMALLER] = read_real (d);
105 b[Y_AXIS][SMALLER] = read_real (d);
106 b[X_AXIS][BIGGER] = read_real (d);
107 b[Y_AXIS][BIGGER] = read_real (d);
112 read_afm_file (String fn)
114 Data_file input (fn);
116 assert (!input.eof_b ());
118 int i = fn.index_i(".afm");
119 for (; i>0 && isdigit(fn[--i]); )
121 int font_size = String_convert::dec2_i(fn.cut_str(i+1,INT_MAX));
123 Adobe_font_metric afm;
125 for (i=0; i < 256; i++)
127 afm.ascii_to_metric_idx_.push (-1);
130 while (!input.eof_b ())
132 input.gobble_leading_white ();
133 String w = input.get_word ();
134 if (w == "StartFontMetrics")
139 while (!input.eof_b ())
141 input.gobble_leading_white ();
142 String key = input.get_word ();
143 if (key == "Comment")
146 READSTRING(FontName);
147 READSTRING(FullName);
148 READSTRING(FamilyName);
152 READSTRING(EncodingScheme);
153 READREAL(ItalicAngle);
154 READREAL(UnderlineThickness);
155 READREAL(UnderlinePosition);
157 if (key == "StartCharMetrics")
160 afm.read_char_metrics (input, font_size);
162 if (key == "EndFontMetrics")