-/*
- afm.cc -- implement Adobe_font_metric
-
- source file of the Flower Library
-
- (c) 2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
+/*
+ afm.cc -- implement Adobe_font_metric
+
+ source file of the GNU LilyPond music typesetter
+
+ (c) 2000--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+*/
+
#include "afm.hh"
+
+#include <cstring>
+using namespace std;
+
#include "warn.hh"
-#include "molecule.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;
+ checksum_ = 0;
+ font_info_ = fi;
+ design_size_ = 1.0;
- for (int i= 256; i--;)
+ for (int i = max (256, fi->numOfChars); i--;)
ascii_to_metric_idx_.push (-1);
-
- for (int i=0; i < fi->numOfChars; i++)
+
+ for (int i = 0; i < fi->numOfChars; i++)
{
- AFM_CharMetricInfo * c = fi->cmi + 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;
}
}
+Adobe_font_metric::~Adobe_font_metric ()
+{
+ AFM_free (font_info_);
+}
SCM
-Adobe_font_metric::make_afm (AFM_Font_info *fi)
+Adobe_font_metric::make_afm (AFM_Font_info *fi,
+ unsigned int checksum,
+ Real design_size)
{
- Adobe_font_metric * fm = new Adobe_font_metric (fi);
-
- return fm->self_scm();
+ 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 , bool warn) const
+Adobe_font_metric::find_ascii_metric (int a) const
{
- if (ascii_to_metric_idx_[a] >=0)
+ if (ascii_to_metric_idx_[a] >= 0)
{
int code = ascii_to_metric_idx_[a];
- if (code>=0)
- {
- return font_inf_->cmi + code;
- }
+ if (code >= 0)
+ return font_info_->cmi + code;
}
- else if (warn )
- {
- warning (_f ("can't find character number: %d", a));
- }
-
return 0;
}
AFM_CharMetricInfo const *
-Adobe_font_metric::find_char_metric (String nm, bool warn) 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;
+}
+
+int
+Adobe_font_metric::name_to_index (String name) const
{
- map<String,int>::const_iterator ai = name_to_metric_dict_.find (nm);
-
+ map<String, int>::const_iterator ai = name_to_metric_dict_.find (name);
if (ai == name_to_metric_dict_.end ())
- {
- if (warn)
- {
- warning (_f ("can't find character called: `%s'", nm.ch_C()));
- }
- return 0;
- }
- else
- return font_inf_->cmi + (*ai).second;
+ return -1;
+ return (*ai).second;
}
+int
+Adobe_font_metric::count () const
+{
+ return font_info_->numOfChars;
+}
Box
-Adobe_font_metric::get_char (int code, Real mag) const
+Adobe_font_metric::get_ascii_char (int code) const
{
- AFM_CharMetricInfo const
- * c = find_ascii_metric (code,false);
- Box b (Interval (0,0),Interval(0,0));
+ AFM_CharMetricInfo const *c = find_ascii_metric (code);
+ Box b (Interval (0, 0), Interval (0, 0));
if (c)
- b = afm_bbox_to_box (c->charBBox);
-
- b.scale (mag);
+ 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));
+}
+
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;
- if (ok)
+ /* Assume check_key in first 10 lines */
+ for (int i = 0; i < 10; i++)
{
- error (_f ("Error parsing AFM file: %s", nm.ch_C ()));
- exit (2);
+ 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 e = AFM_parseFile (f, &fi, ~0);
+
+ if (e)
+ error (_f ("parsing AFM file: `%s'", nm.to_str0 ()));
fclose (f);
- return Adobe_font_metric::make_afm (fi);
+ return Adobe_font_metric::make_afm (fi, cs, ds);
}
-
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));
-
+#if 1 /* Fine for feta; ec-fonts-mftraced do not have AFM. */
+ return Box (Interval (bb.llx, bb.urx) * 0.001 PT,
+ Interval (bb.lly, bb.ury) * 0.001 PT);
+#else /* FIXME: about right for lmodern. */
+ return Box (Interval (bb.llx, bb.urx) * 1.14 * 0.001 PT,
+ Interval (bb.lly, bb.ury) * 1.14 * 0.001 PT);
+#endif
}
-
-Adobe_font_metric::~Adobe_font_metric ()
+Offset
+Adobe_font_metric::get_indexed_wxwy (int k) const
{
- AFM_free (font_inf_);
+ AFM_CharMetricInfo const *mi = font_info_->cmi + k;
+#if 1 /* Fine for feta; ec-fonts-mftraced do not have AFM. */
+ return Offset (mi->wx, mi->wy) * 0.001 PT;
+#else /* FIXME: about right for lmodern. */
+ return Offset (mi->wx, mi->wy) * 1.14 * 0.001 PT;
+#endif
}
-Molecule
-Adobe_font_metric::find_by_name (String s, Real mag) const
+Real
+Adobe_font_metric::design_size () const
{
- AFM_CharMetricInfo const *cm = find_char_metric (s, false);
+ return design_size_;
+}
- if (!cm)
- {
- Molecule m;
- m.set_empty (false);
- return m;
- }
-
- SCM at = (gh_list (ly_symbol2scm ("char"),
- gh_int2scm (cm->code),
- SCM_UNDEFINED));
-
- at= fontify_atom ((Font_metric*)this, at);
- Box b = afm_bbox_to_box (cm->charBBox);
- b.scale (mag);
- return Molecule (b, at);
+String
+Adobe_font_metric::font_name () const
+{
+ return font_info_->gfi->fontName;
}
projects / lilypond.git / blobdiff