X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Ftfm.cc;h=3f415802e46bdca4c2014ed46e78733d3bd871fd;hb=2a876a1f0625e31291b3c6b2d5a65f5b1aec7dde;hp=af11940191f1475b67292ac1a1482748c9d0c163;hpb=e06b574017fe8923df3ad37e024cf850358861b7;p=lilypond.git

diff --git a/lily/tfm.cc b/lily/tfm.cc
index af11940191..3f415802e4 100644
--- a/lily/tfm.cc
+++ b/lily/tfm.cc
@@ -1,30 +1,27 @@
-/*   
-  tfm.cc --  implement Tex_font_metric
-  
+/*
+  tfm.cc -- implement Tex_font_metric
+
   source file of the GNU LilyPond music typesetter
-  
-  (c) 1999 Jan Nieuwenhuizen <janneke@gnu.org>
-  
+
+  (c) 1999--2006 Jan Nieuwenhuizen <janneke@gnu.org>
 
   some code shamelessly copied from GNU fontutils-0.6/tfm/tfm_input.c
- */
+*/
 
 #include "tfm.hh"
-#include "tfm-reader.hh"
+
+#include "dimensions.hh"
+#include "file-name.hh"
+#include "international.hh"
 #include "string-convert.hh"
-#include "debug.hh"
+#include "tfm-reader.hh"
 #include "warn.hh"
 
-Box
-Tex_font_char_metric::dimensions () const
-{
-  Real d = -depth_;
-  return Box (Interval (0, width_),Interval ( d <? height_, d >? height_));
-}
+static Tex_font_char_metric dummy_static_char_metric;
 
 Tex_font_char_metric::Tex_font_char_metric ()
 {
-  exists_b_ = false;
+  exists_ = false;
   code_ = 0;;
   width_ = 0;
   height_ = 0;
@@ -36,64 +33,100 @@ Tex_font_char_metric::Tex_font_char_metric ()
   italic_correction_fix_ = 0;
 }
 
-#define APPEND_CHAR_METRIC_ELT(k)  outstr += to_str (#k) + " "  + to_str (k ## _)  + "; "
-
-String
-Tex_font_char_metric::str () const
+Box
+Tex_font_char_metric::dimensions () const
 {
-  String outstr ;
-
-  APPEND_CHAR_METRIC_ELT (exists_b);
-  APPEND_CHAR_METRIC_ELT (code);
-  APPEND_CHAR_METRIC_ELT (width);
-  APPEND_CHAR_METRIC_ELT (height);
-  APPEND_CHAR_METRIC_ELT (depth);
-  APPEND_CHAR_METRIC_ELT (italic_correction);
-  
-  return outstr + "\n";
+  if (!exists_)
+    {
+      Box b;
+      b.set_empty ();
+      return b;
+    }
+
+  Real d = -depth_;
+  Real point_constant = 1 PT;
+
+  return Box (Interval (0, width_ * point_constant),
+	      Interval (min (d, height_) * point_constant,
+			max (d, height_) * point_constant));
 }
 
 Tex_font_metric::Tex_font_metric ()
 {
+  encoding_table_ = SCM_EOL;
 }
 
-static Tex_font_char_metric dummy_static_char_metric;
+void
+Tex_font_metric::derived_mark () const
+{
+  scm_gc_mark (encoding_table_);
+}
 
 Tex_font_char_metric const *
-Tex_font_metric::find_ascii (int ascii, bool warn) const
+Tex_font_metric::find_ascii (vsize ascii, bool warn) const
 {
-  if (ascii < ascii_to_metric_idx_.size() && ascii_to_metric_idx_[ascii] >= 0)
-    return & char_metrics_[ascii_to_metric_idx_ [ascii]];
+  if (ascii != VPOS && ascii < ascii_to_metric_idx_.size ()
+      && ascii_to_metric_idx_[ascii] != VPOS)
+    return &char_metrics_[ascii_to_metric_idx_ [ascii]];
   else if (warn)
+    warning (_f ("can't find ascii character: %d", ascii));
+  return &dummy_static_char_metric;
+}
 
-    {
-      warning (_f ("Can't find ascii character: `%d'", ascii));
-    }
-  return &dummy_static_char_metric;  
+/* UGH: glyphs need not be consecutive in TFM. */
+vsize
+Tex_font_metric::count () const
+{
+  for (vsize i = ascii_to_metric_idx_.size (); i--;)
+    if (ascii_to_metric_idx_[i] != VPOS)
+      return i + 1;
+  return 0;
 }
 
 Box
-Tex_font_metric::get_char (int a, bool w) const
+Tex_font_metric::get_ascii_char (vsize a) const
 {
-  return find_ascii (a, w)->dimensions ();
+  Box b = find_ascii (a)->dimensions ();
+  return b;
 }
 
+SCM
+Tex_font_metric::make_tfm (string file_name)
+{
+  Tex_font_metric *tfm = new Tex_font_metric;
+  Tex_font_metric_reader reader (file_name);
+
+  tfm->info_ = reader.info_;
+  tfm->header_ = reader.header_;
+  tfm->char_metrics_ = reader.char_metrics_;
+  tfm->ascii_to_metric_idx_ = reader.ascii_to_metric_idx_;
 
-String
-Tex_font_metric::str () const
+  File_name fn (file_name);
+  tfm->font_name_ = fn.base_;
+  return tfm->self_scm ();
+}
+
+Tfm_info const &
+Tex_font_metric::info () const
 {
-  String outstr;
-  for (int i=0; i < char_metrics_.size (); i++)
-    outstr += char_metrics_[i].str ();
-  
-  return outstr;
+  return info_;
 }
 
-void
-Tex_font_metric::clear (int n)
+Real
+Tex_font_metric::design_size () const
 {
-  for (int i=0; i < n; i++)
-    ascii_to_metric_idx_.push (-1);
+  return info_.design_size * point_constant;
 }
 
+string
+Tex_font_metric::font_name () const
+{
+  return font_name_;
+}
 
+vsize
+Tex_font_metric::name_to_index (string) const
+{
+  assert (false);
+  return 0;
+}