-/*
- afm.cc -- implement Adobe_font_metric
-
+/*
+ afm.cc -- implement Adobe_font_metric
+
source file of the GNU LilyPond music typesetter
-
- (c) 1998--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
+
+ (c) 2000--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+*/
#include "afm.hh"
-#include "box.hh"
-#include "direction.hh"
-#include "debug.hh"
-Box &
-Adobe_font_char_metric::bbox ()
+#include <cstring>
+using namespace std;
+
+#include "warn.hh"
+#include "libc-extension.hh"
+#include "dimensions.hh"
+
+Adobe_font_metric::Adobe_font_metric (AFM_Font_info *fi)
{
- return B_;
+ checksum_ = 0;
+ font_info_ = fi;
+ design_size_ = 1.0;
+
+ for (int i = max (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;
+ }
}
-String &
-Adobe_font_char_metric::name ()
+Adobe_font_metric::~Adobe_font_metric ()
{
- return N_;
+ AFM_free (font_info_);
}
-int &
-Adobe_font_char_metric::code ()
+SCM
+Adobe_font_metric::make_afm (AFM_Font_info *fi,
+ unsigned int checksum,
+ Real design_size)
{
- return C_;
+ Adobe_font_metric *fm = new Adobe_font_metric (fi);
+ fm->checksum_ = checksum;
+ fm->design_size_ = design_size;
+ return fm->self_scm ();
}
-Real &
-Adobe_font_char_metric::width ()
+AFM_CharMetricInfo const *
+Adobe_font_metric::find_ascii_metric (int a) const
{
- return WX_;
+ if (ascii_to_metric_idx_[a] >= 0)
+ {
+ int code = ascii_to_metric_idx_[a];
+ if (code >= 0)
+ return font_info_->cmi + code;
+ }
+ return 0;
}
-Adobe_font_char_metric::Adobe_font_char_metric ()
+AFM_CharMetricInfo const *
+Adobe_font_metric::find_char_metric (String nm) const
{
- B_ = Box( Interval(0,0), Interval (0,0));
- WX_ = 0.0;
- C_ = 0;
- C_ = -1;
+ int idx = name_to_index (nm);
+ if (idx >= 0)
+ return font_info_->cmi + idx;
+ return 0;
}
-Adobe_font_metric::Adobe_font_metric ()
+int
+Adobe_font_metric::name_to_index (String name) const
{
- ItalicAngle_ = 0.0;
- IsFixedPitch_ = false;
- UnderlinePosition_ =0.;
- UnderlineThickness_=0.;
+ 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_char_metric::dimensions () const
+Adobe_font_metric::get_ascii_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);
+ Box b (Interval (0, 0), Interval (0, 0));
+ if (c)
+ b = afm_bbox_to_box (c->charBBox);
return b;
}
-
-
-#define APPEND_CHAR_METRIC_ELT(k) outstr += to_str (#k) + " " + to_str (k ## _) + "; "
-
-String
-box_str (Box b)
+int
+Adobe_font_metric::index_to_ascii (int code) const
{
- 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]);
+ return font_info_->cmi[code].code;
}
-#define APPEND_BOX(k) outstr += to_str (#k) + " " + box_str (k ## _) + ";"
-
-String
-Adobe_font_char_metric::str () const
+Box
+Adobe_font_metric::get_indexed_char (int code) const
{
- String outstr ;
-
- APPEND_CHAR_METRIC_ELT (C);
- APPEND_CHAR_METRIC_ELT(N);
- APPEND_CHAR_METRIC_ELT(WX);
-
- APPEND_BOX(B);
- return outstr + "\n";
+ if (code >= 0)
+ return afm_bbox_to_box (font_info_->cmi[code].charBBox);
+ else
+ return Box (Interval (0, 0), Interval (0, 0));
}
-#define WRITESTRING(k) outstr += String (#k) + " " + to_str (k ## _) + "\n"
-
-String
-Adobe_font_metric::str () const
+SCM
+read_afm_file (String nm)
{
- 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;
-}
+ FILE *f = fopen (nm.to_str0 (), "r");
+ char s[2048] = "";
+ char *check_key = "Comment TfmCheckSum";
+ char *size_key = "Comment DesignSize";
-Adobe_font_char_metric dummy_static_char_metric;
+ unsigned int cs = 0;
+ Real ds = 1.0;
-Adobe_font_char_metric const &
-Adobe_font_metric::find_char (String nm, bool warn) const
-{
- if (!name_to_metric_dict_.elem_b (nm))
+ /* Assume check_key in first 10 lines */
+ for (int i = 0; i < 10; i++)
{
- if (warn)
- {
- warning (_f ("Can't find character called: `%s'", nm.ch_C()));
- }
- return dummy_static_char_metric;
+ 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);
}
-
- return char_metrics_[name_to_metric_dict_ [nm]];
+
+ 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, cs, ds);
+}
+
+Box
+afm_bbox_to_box (AFM_BBox bb)
+{
+#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
}
+Offset
+Adobe_font_metric::get_indexed_wxwy (int k) const
+{
+ 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
+}
-Character_metric const *
-Adobe_font_metric::get_char (int code, bool warn) const
+Real
+Adobe_font_metric::design_size () const
{
- return &find_ascii (code,warn);
+ return design_size_;
}
-Adobe_font_char_metric const &
-Adobe_font_metric::find_ascii (int a , bool warn) const
+String
+Adobe_font_metric::font_name () const
{
- int code = ascii_to_metric_idx_[a];
- if (code>=0)
- {
- return char_metrics_[code];
- }
- else if (warn )
- {
- warning (_f ("Can't find character number: %d", a));
- }
- return dummy_static_char_metric;
+ return font_info_->gfi->fontName;
}
projects / lilypond.git / blobdiff