/*
afm.cc -- implement Adobe_font_metric
- source file of the GNU LilyPond music typesetter
+ source file of the Flower Library
- (c) 1998--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 2000--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-
#include "afm.hh"
-#include "box.hh"
-#include "direction.hh"
-#include "debug.hh"
+#include "warn.hh"
+#include "molecule.hh"
+#include "dimensions.hh"
-Box &
-Adobe_font_char_metric::bbox ()
+Adobe_font_metric::Adobe_font_metric (AFM_Font_info * fi)
{
- return B_;
-}
+ checksum_ = 0;
+ font_inf_ = fi;
-String &
-Adobe_font_char_metric::name ()
-{
- return N_;
+ 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;
+
+ /*
+ 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;
+ }
}
-int &
-Adobe_font_char_metric::code ()
+
+SCM
+Adobe_font_metric::make_afm (AFM_Font_info *fi, unsigned int checksum)
{
- return C_;
+ Adobe_font_metric * fm = new Adobe_font_metric (fi);
+ fm->checksum_ = checksum;
+ return fm->self_scm ();
}
-Real &
-Adobe_font_char_metric::width ()
+
+AFM_CharMetricInfo const *
+Adobe_font_metric::find_ascii_metric (int a , bool warn) const
{
- return WX_;
+ 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));
+ }
+
+ return 0;
}
-Adobe_font_char_metric::Adobe_font_char_metric ()
+AFM_CharMetricInfo const *
+Adobe_font_metric::find_char_metric (String nm, bool warn) const
{
- B_ = Box( Interval(0,0), Interval (0,0));
- WX_ = 0.0;
- C_ = 0;
- C_ = -1;
+ std::map<String,int>::const_iterator ai = name_to_metric_dict_.find (nm);
+
+ 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;
}
-Adobe_font_metric::Adobe_font_metric ()
+int
+Adobe_font_metric::count () const
{
- ItalicAngle_ = 0.0;
- IsFixedPitch_ = false;
- UnderlinePosition_ =0.;
- UnderlineThickness_=0.;
+ return font_inf_->numOfChars ;
}
-
Box
-Adobe_font_char_metric::dimensions () const
+Adobe_font_metric::get_char (int code) const
{
- Box b= B_;
-
- b[X_AXIS] *= size_ / 1000.0;
- b[Y_AXIS] *= size_ / 1000.0;
+ AFM_CharMetricInfo const
+ * c = find_ascii_metric (code,false);
+ Box b (Interval (0,0),Interval (0,0));
+ if (c)
+ b = afm_bbox_to_box (c->charBBox);
return b;
}
+SCM
+read_afm_file (String nm)
+{
+ FILE *f = fopen (nm.ch_C () , "r");
+ char s[2048];
+ char *check_key = "TfmCheckSum";
+ fgets (s, sizeof (s), f);
+ unsigned int cs = 0;
+ if (strncmp (s, check_key, strlen (check_key)) == 0)
+ {
+ sscanf (s + strlen (check_key), "%ud", &cs);
+ }
+ else
+ {
+ rewind (f);
+ }
-#define APPEND_CHAR_METRIC_ELT(k) outstr += to_str (#k) + " " + to_str (k ## _) + "; "
+
+ AFM_Font_info * fi;
+ int ok = AFM_parseFile (f, &fi, ~1);
-String
-box_str (Box b)
-{
- return to_str (b[X_AXIS][SMALLER]) + " " +
- to_str(b[Y_AXIS][SMALLER]) + " " +
- to_str (b[X_AXIS][BIGGER]) + " "+
- to_str (b[Y_AXIS][BIGGER]);
+ if (ok)
+ {
+ error (_f ("Error parsing AFM file: `%s'", nm.ch_C ()));
+ exit (2);
+ }
+ fclose (f);
+
+ return Adobe_font_metric::make_afm (fi, cs);
}
-#define APPEND_BOX(k) outstr += to_str (#k) + " " + box_str (k ## _) + ";"
-String
-Adobe_font_char_metric::str () const
+/*
+ actually, AFMs will be printers point, usually, but our .py script dumps
+ real points.
+ */
+Box
+afm_bbox_to_box (AFM_BBox bb)
{
- String outstr ;
+ return Box (Interval (bb.llx, bb.urx)* (1/1000.0) PT,
+ Interval (bb.lly, bb.ury)* (1/1000.0) PT);
- APPEND_CHAR_METRIC_ELT (C);
- APPEND_CHAR_METRIC_ELT(N);
- APPEND_CHAR_METRIC_ELT(WX);
-
- APPEND_BOX(B);
- return outstr + "\n";
}
-
-#define WRITESTRING(k) outstr += String (#k) + " " + to_str (k ## _) + "\n"
-
-String
-Adobe_font_metric::str () const
-{
- String outstr;
- WRITESTRING(FontName);
- WRITESTRING(FullName);
- WRITESTRING(FamilyName);
- WRITESTRING(Weight);
- WRITESTRING(Version);
- WRITESTRING(Notice);
- WRITESTRING(EncodingScheme);
- WRITESTRING(ItalicAngle);
- WRITESTRING(UnderlineThickness);
- WRITESTRING(UnderlinePosition);
- outstr += "FontBBox " + box_str (FontBBox_) + "\n";
-
- for (int i=0; i < char_metrics_.size (); i++)
- outstr += char_metrics_[i].str ();
- return outstr;
-}
-Adobe_font_char_metric dummy_static_char_metric;
-
-Adobe_font_char_metric const &
-Adobe_font_metric::find_char (String nm, bool warn) const
+Adobe_font_metric::~Adobe_font_metric ()
{
- if (!name_to_metric_dict_.elem_b (nm))
- {
- if (warn)
- {
- warning (_f ("Can't find character called: `%s'", nm.ch_C()));
- }
- return dummy_static_char_metric;
- }
-
- return char_metrics_[name_to_metric_dict_ [nm]];
+ AFM_free (font_inf_);
}
-
-Character_metric const *
-Adobe_font_metric::get_char (int code, bool warn) const
+/*
+ return a molecule, without fontification
+ */
+Molecule
+Adobe_font_metric::find_by_name (String s) const
{
- return &find_ascii (code,warn);
-}
+ AFM_CharMetricInfo const *cm = find_char_metric (s, false);
-Adobe_font_char_metric const &
-Adobe_font_metric::find_ascii (int a , bool warn) const
-{
- int code = ascii_to_metric_idx_[a];
- if (code>=0)
- {
- return char_metrics_[code];
- }
- else if (warn )
+ if (!cm)
{
- warning (_f ("Can't find character number: %d", a));
+ /*
+ Why don't we return empty?
+ */
+
+ Molecule m;
+ m.set_empty (false);
+ return m;
}
- return dummy_static_char_metric;
+
+ SCM at = (scm_list_n (ly_symbol2scm ("char"),
+ gh_int2scm (cm->code),
+ SCM_UNDEFINED));
+
+ // at= fontify_atom ((Font_metric*)this, at);
+ Box b = afm_bbox_to_box (cm->charBBox);
+
+ return Molecule (b, at);
}
projects / lilypond.git / blobdiff