2 afm.cc -- implement Adobe_font_metric
4 source file of the Flower Library
6 (c) 2000--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
11 #include "molecule.hh"
13 Adobe_font_metric::Adobe_font_metric (AFM_Font_info * fi)
18 for (int i= 256; i--;)
19 ascii_to_metric_idx_.push (-1);
21 for (int i=0; i < fi->numOfChars; i++)
23 AFM_CharMetricInfo * c = fi->cmi + i;
25 ascii_to_metric_idx_[c->code] = i;
26 name_to_metric_dict_[c->name] = i;
32 Adobe_font_metric::make_afm (AFM_Font_info *fi, unsigned int checksum)
34 Adobe_font_metric * fm = new Adobe_font_metric (fi);
35 fm->checksum_ = checksum;
36 return fm->self_scm ();
40 AFM_CharMetricInfo const *
41 Adobe_font_metric::find_ascii_metric (int a , bool warn) const
43 if (ascii_to_metric_idx_[a] >=0)
45 int code = ascii_to_metric_idx_[a];
48 return font_inf_->cmi + code;
53 warning (_f ("can't find character number: %d", a));
59 AFM_CharMetricInfo const *
60 Adobe_font_metric::find_char_metric (String nm, bool warn) const
62 std::map<String,int>::const_iterator ai = name_to_metric_dict_.find (nm);
64 if (ai == name_to_metric_dict_.end ())
68 warning (_f ("can't find character called: `%s'", nm.ch_C ()));
73 return font_inf_->cmi + (*ai).second;
77 Adobe_font_metric::count () const
79 return ascii_to_metric_idx_.size ();
83 Adobe_font_metric::get_char (int code) const
85 AFM_CharMetricInfo const
86 * c = find_ascii_metric (code,false);
87 Box b (Interval (0,0),Interval (0,0));
89 b = afm_bbox_to_box (c->charBBox);
95 read_afm_file (String nm)
97 FILE *f = fopen (nm.ch_C () , "r");
99 char *check_key = "TfmCheckSum";
100 fgets (s, sizeof (s), f);
103 if (strncmp (s, check_key, strlen (check_key)) == 0)
105 sscanf (s + strlen (check_key), "%ud", &cs);
114 int ok = AFM_parseFile (f, &fi, ~1);
118 error (_f ("Error parsing AFM file: `%s'", nm.ch_C ()));
123 return Adobe_font_metric::make_afm (fi, cs);
128 afm_bbox_to_box (AFM_BBox bb)
130 return Box (Interval (bb.llx, bb.urx)* (1/1000.0),
131 Interval (bb.lly, bb.ury)* (1/1000.0));
136 Adobe_font_metric::~Adobe_font_metric ()
138 AFM_free (font_inf_);
142 return a molecule, without fontification
145 Adobe_font_metric::find_by_name (String s) const
147 AFM_CharMetricInfo const *cm = find_char_metric (s, false);
156 SCM at = (gh_list (ly_symbol2scm ("char"),
157 gh_int2scm (cm->code),
160 // at= fontify_atom ((Font_metric*)this, at);
161 Box b = afm_bbox_to_box (cm->charBBox);
163 return Molecule (b, at);