release: 1.5.8

[lilypond.git] / lily / all-font-metrics.cc

diff --git a/lily/all-font-metrics.cc b/lily/all-font-metrics.cc
index d3722420116299edcf62cde14efb27b603624686..b198384426c8a4388b7409a6e4e0da8c7b6fc79f 100644 (file)
--- a/lily/all-font-metrics.cc
+++ b/lily/all-font-metrics.cc
@@ -1,77 +1,190 @@
+/*   
+  all-font-metrics.cc --  implement All_font_metrics
+  
+  source file of the GNU LilyPond music typesetter
+  
+  (c) 1999--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  
+ */
 
+#include "config.h"
 #include "main.hh"
-#include "all-fonts.hh"
+#include "all-font-metrics.hh"
 #include "debug.hh"
 #include "warn.hh"
 #include "afm.hh"
 #include "tfm.hh"
+#include "lily-guile.hh"
+#include "scm-hash.hh"
+#include "kpath.hh"
 
-const char * default_font_sz_ = "cmr10";
+static const char * default_font_sz_ = "cmr10";
 
 All_font_metrics::All_font_metrics (String path)
 {
+  afm_p_dict_ = new Scheme_hash_table;
+  tfm_p_dict_ = new Scheme_hash_table;
+  
   search_path_.parse_path (path);
 }
 
+All_font_metrics::~All_font_metrics ()
+{
+  scm_gc_unprotect_object (afm_p_dict_->self_scm ());
+  scm_gc_unprotect_object (tfm_p_dict_->self_scm ());
+}
+
 Adobe_font_metric *
 All_font_metrics::find_afm (String name)
 {
-  if (!afm_p_dict_.elem_b (name))
+  SCM sname = ly_symbol2scm (name.ch_C ());
+
+  SCM name_str = ly_str02scm (name.ch_C ());
+
+  SCM val;
+  
+  if (!afm_p_dict_->try_retrieve (sname, &val))
     {
-      String path = name  + ".afm";
-      path = search_path_.find (path);
+      String path;
+
+      if (path.empty_b ())
+       path = search_path_.find (name  + ".afm");
+
+      if (path.empty_b ())
+       {
+         String p = ly_find_afm (name.ch_C ());
+         if (p.length_i ())
+           path = p;
+       }
+
       if (path.empty_b ())
        return 0;
       
-      *mlog << "[" << path;
-      Adobe_font_metric
-       * afm_p = new Adobe_font_metric (read_afm_file (path));
-      *mlog << "]" << flush ;
+      if (verbose_global_b)
+       progress_indication ("[" + path);
+      val = read_afm_file (path);
+      unsmob_metrics (val)->path_ = path;
+      
+      unsmob_metrics (val)->description_ = gh_cons (name_str, gh_double2scm (1.0));
+
+      if (verbose_global_b)
+       progress_indication ("]");
+
+      afm_p_dict_->set (sname,val);
+
+      scm_gc_unprotect_object (val);
+
+
+      Adobe_font_metric *afm
+       = dynamic_cast<Adobe_font_metric*> (unsmob_metrics (val));
 
-      afm_p_dict_[name] = afm_p;
+      /*
+       only check checksums if there is one.  We take the risk that
+       some file has valid checksum 0
+      */
+      if (afm->checksum_)
+       {
+         
+         Tex_font_metric * tfm = find_tfm (name);
+         
+         /* FIXME: better warning message
+            (maybe check upon startup for feta16.afm, feta16.tfm?)
+         */
+         if (tfm && tfm->info_.checksum != afm->checksum_)
+           {
+             String s = _f ("checksum mismatch for font file: `%s'",
+                            path.ch_C ());
+             s += " " + _f ("does not match: `%s'", tfm->path_.ch_C ()); // FIXME
+             s += "\n";
+             s += " TFM: " + to_str ((int) tfm->info_.checksum);
+             s += " AFM: " + to_str ((int) afm->checksum_);
+             s += "\n";
+             s += _ (" Rebuild all .afm files, and remove all .pk and .tfm files.  Rerun with -V to show font paths.");
+             
+             error (s);
+           }
+       }
     }
-  return afm_p_dict_[name];  
+  
+  return dynamic_cast<Adobe_font_metric*> (unsmob_metrics (val));
 }
 
+
 Tex_font_metric *
 All_font_metrics::find_tfm (String name)
 {
-  if (!tfm_p_dict_.elem_b (name))
+  SCM sname = ly_symbol2scm (name.ch_C ());
+  SCM name_str = ly_str02scm (name.ch_C ());
+
+  SCM val;
+  if (!tfm_p_dict_->try_retrieve (sname, &val))
     {
-      String path = name  + ".tfm";
-      path = search_path_.find (path);
+      String path;
+      
+      if (path.empty_b ())
+       {
+         String p = ly_find_tfm (name.ch_C ());
+         if (p.length_i ())
+           path = p;
+       }
+
+      if (path.empty_b ())
+       path = search_path_.find (name  + ".tfm");
       if (path.empty_b ())
        return 0;
+
       
-      *mlog << "[" << path;
-      Tex_font_metric  * tfm_p = new Tex_font_metric;
-      tfm_p->read_file (path);
-      *mlog << "]" << flush ;
+      if (verbose_global_b)
+       progress_indication ("[" + path);
+      val = Tex_font_metric::make_tfm (path);
+
+      if (verbose_global_b)
+       progress_indication ("]");
 
-      tfm_p_dict_[name] = tfm_p;
+      unsmob_metrics (val)->path_ = path;
+      unsmob_metrics (val)->description_ = gh_cons (name_str, gh_double2scm (1.0));
+      tfm_p_dict_->set (sname, val);
+
+      scm_gc_unprotect_object (val);
     }
-  return tfm_p_dict_[name];  
+
+  return
+    dynamic_cast<Tex_font_metric*> (unsmob_metrics (val));
 }
 
 
 Font_metric *
 All_font_metrics::find_font (String name)
 {
-  Font_metric * f=0;
-  f = find_tfm (name);
+  Font_metric * f= find_afm (name);
   if (f)
     return f;
 
-  f= find_afm (name);
+  f = find_tfm (name);
   if (f)
     return f;
 
-  warning (_f("Can't find font `%s', loading default font.", name.ch_C()));
+  warning (_f ("can't find font: `%s'", name.ch_C ()));
+  warning (_ ("Loading default font"));
   
-  f =  find_tfm (default_font_sz_);
+  String def_name = default_font_sz_;
+
+  /*
+    we're in emergency recovery mode here anyway, so don't try to do
+    anything smart that runs the risk of failing.  */
+  f= find_afm (def_name);
+  if (f)
+    return f;
+
+  f =  find_tfm (def_name);
   if (f)
     return f;
-  String s = _f("Can't find default font `%s\', giving up.", default_font_sz_);
-  s += String ("\n") + _f ("search path = %s", search_path_.str ());
-  error (s);
+
+  error (_f ("can't find default font: `%s'", def_name.ch_C ()));
+  error (_f ("(search path: `%s')", search_path_.str ()));
+  error (_ ("Giving up"));
+
+  return 0;
 }
+
+