/*
- afm2.cc -- implement Adobe_font_metric
+ afm.cc -- implement Adobe_font_metric
- source file of the Flower Library
+ source file of the GNU LilyPond music typesetter
- (c) 2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 2000--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
+
#include "afm.hh"
+
+#include <cstring>
+
#include "warn.hh"
+#include "libc-extension.hh"
+#include "dimensions.hh"
-Adobe_font_metric::Adobe_font_metric (AFM_Font_info * fi)
+Adobe_font_metric::Adobe_font_metric (AFM_Font_info *fi)
{
- font_inf_ = fi;
-
- for (int i= 256; i--;)
+ checksum_ = 0;
+ font_info_ = fi;
+ design_size_ = 1.0;
+
+ for (int i = 256 >? fi->numOfChars; i--;)
ascii_to_metric_idx_.push (-1);
for (int i=0; i < fi->numOfChars; i++)
{
AFM_CharMetricInfo * c = fi->cmi + i;
- ascii_to_metric_idx_[c->code] = i;
+ /* Some TeX afm files contain code = -1. We don't know why,
+ let's ignore it. */
+ if (c->code >= 0)
+ ascii_to_metric_idx_[c->code] = i;
name_to_metric_dict_[c->name] = i;
}
}
-
-AFM_CharMetricInfo const *
-Adobe_font_metric::find_ascii_metric (int a , bool warn) const
+Adobe_font_metric::~Adobe_font_metric ()
+{
+ AFM_free (font_info_);
+}
+
+SCM
+Adobe_font_metric::make_afm (AFM_Font_info *fi,
+ unsigned int checksum,
+ Real design_size)
+{
+ Adobe_font_metric *fm = new Adobe_font_metric (fi);
+ fm->checksum_ = checksum;
+ fm->design_size_ = design_size;
+ return fm->self_scm ();
+}
+
+AFM_CharMetricInfo const*
+Adobe_font_metric::find_ascii_metric (int a) const
{
if (ascii_to_metric_idx_[a] >=0)
{
int code = ascii_to_metric_idx_[a];
- if (code>=0)
- {
- return font_inf_->cmi + code;
- }
- }
- else if (warn )
- {
- warning (_f ("Can't find character number: %d", a));
+ if (code >= 0)
+ return font_info_->cmi + code;
}
+ return 0;
+}
+AFM_CharMetricInfo const*
+Adobe_font_metric::find_char_metric (String nm) const
+{
+ int idx = name_to_index (nm);
+ if (idx >= 0)
+ return font_info_->cmi + idx;
return 0;
}
-AFM_CharMetricInfo const *
-Adobe_font_metric::find_char_metric (String nm, bool warn) const
+int
+Adobe_font_metric::name_to_index (String name) const
{
- if (!name_to_metric_dict_.elem_b (nm))
- {
- if (warn)
- {
- warning (_f ("Can't find character called: `%s'", nm.ch_C()));
- }
- return 0;
- }
- else
- return font_inf_->cmi + name_to_metric_dict_ [nm];
+ std::map<String,int>::const_iterator ai = name_to_metric_dict_.find (name);
+ if (ai == name_to_metric_dict_.end ())
+ return -1;
+ return (*ai).second;
}
+int
+Adobe_font_metric::count () const
+{
+ return font_info_->numOfChars;
+}
Box
-Adobe_font_metric::get_char (int code, bool warn) const
+Adobe_font_metric::get_ascii_char (int code) const
{
- AFM_CharMetricInfo const
- * c = find_ascii_metric (code,warn);
+ AFM_CharMetricInfo const *c = find_ascii_metric (code);
+ Box b (Interval (0, 0), Interval (0, 0));
if (c)
- return afm_bbox_to_box (c->charBBox);
+ b = afm_bbox_to_box (c->charBBox);
+ return b;
+}
+
+int
+Adobe_font_metric::index_to_ascii (int code) const
+{
+ return font_info_->cmi[code].code;
+}
+
+Box
+Adobe_font_metric::get_indexed_char (int code) const
+{
+ if (code >= 0)
+ return afm_bbox_to_box (font_info_->cmi[code].charBBox);
else
- return Box (Interval (0,0),Interval(0,0));
+ return Box (Interval (0, 0), Interval (0, 0));
}
-Adobe_font_metric*
+SCM
read_afm_file (String nm)
{
- FILE *f = fopen (nm.ch_C() , "r");
+ FILE *f = fopen (nm.to_str0 () , "r");
+ char s[2048] = "";
+ char *check_key = "Comment TfmCheckSum";
+ char *size_key = "Comment DesignSize";
- AFM_Font_info * fi;
- int ok = AFM_parseFile (f, &fi, ~1);
+ unsigned int cs = 0;
+ Real ds = 1.0;
+
+ /* Assume check_key in first 10 lines */
+ for (int i = 0; i < 10; i++)
+ {
+ fgets (s, sizeof (s), f);
+ if (strncmp (s, check_key, strlen (check_key)) == 0)
+ sscanf (s + strlen (check_key), "%ud", &cs);
+ else if (strncmp (s, size_key, strlen (size_key)) == 0)
+ sscanf (s + strlen (size_key), "%lf", &ds);
+ }
+
+ rewind (f);
+
+ AFM_Font_info *fi;
+ int ok = AFM_parseFile (f, &fi, ~0);
if (ok)
{
- error (_("Error parsing AFM file"));
+ error (_f ("Error parsing AFM file: `%s'", nm.to_str0 ()));
exit (2);
}
fclose (f);
- return new Adobe_font_metric (fi);
+ return Adobe_font_metric::make_afm (fi, cs, ds);
}
-
+
+/* Actually, AFMs will be printers point, usually, but our .py script dumps
+ real points. */
Box
afm_bbox_to_box (AFM_BBox bb)
{
- return Box (Interval (bb.llx, bb.urx)* (1/1000.0),
- Interval (bb.lly, bb.ury)* (1/1000.0));
+ return Box (Interval (bb.llx, bb.urx)* (1/1000.0) PT,
+ Interval (bb.lly, bb.ury)* (1/1000.0) PT);
}
-
-Adobe_font_metric::~Adobe_font_metric ()
+Offset
+Adobe_font_metric::get_indexed_wxwy (int k) const
+{
+ AFM_CharMetricInfo const *mi = font_info_->cmi+ k;
+ return 1/1000.0 PT * Offset (mi->wx, mi->wy);
+}
+
+Real
+Adobe_font_metric::design_size () const
+{
+ return design_size_;
+}
+
+String
+Adobe_font_metric::coding_scheme () const
{
- AFM_free (font_inf_);
+ return font_info_->gfi->encodingScheme;
}
projects / lilypond.git / blobdiff