release: 1.3.93

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

diff --git a/lily/all-font-metrics.cc b/lily/all-font-metrics.cc
index 0ecfbf4420de88d419e88b1e20a4ddc31f462970..ab4d17759ca92e9a28006b771eda3a7e0f018eb5 100644 (file)
--- a/lily/all-font-metrics.cc
+++ b/lily/all-font-metrics.cc
@@ -1,56 +1,139 @@
+/*   
+  all-font-metrics.cc --  implement All_font_metrics
+  
+  source file of the GNU LilyPond music typesetter
+  
+  (c) 1999--2000 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";
 
 All_font_metrics::All_font_metrics (String path)
 {
+  afm_p_dict_ = new Scheme_hash_table;
+  tfm_p_dict_ = new Scheme_hash_table;
+  scaled_p_dict_ = new Scheme_hash_table;
+  
   search_path_.parse_path (path);
 }
 
+All_font_metrics::~All_font_metrics ()
+{
+  scm_unprotect_object (afm_p_dict_->self_scm ());
+  scm_unprotect_object (tfm_p_dict_->self_scm ());
+  scm_unprotect_object (scaled_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 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 ())
+       {
+         char  * p = ly_find_afm (name.ch_C());
+         if (p)
+           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);
 
-      afm_p_dict_[name] = afm_p;
+      unsmob_metrics (val)->name_ = sname;
+
+      if (verbose_global_b)
+       progress_indication ("]");
+
+      afm_p_dict_->set (sname,val);
+
+      
     }
-  return afm_p_dict_[name];  
+  
+  return dynamic_cast<Adobe_font_metric*> (unsmob_metrics (val));
+}
+
+Scaled_font_metric * 
+All_font_metrics::find_scaled (String nm, int m)
+{
+  String index =  nm + "@" + to_str (m);
+  SCM sname = ly_symbol2scm (index.ch_C ());
+
+  SCM val;
+
+  if (!scaled_p_dict_->try_retrieve  (sname, &val))
+    {
+      Font_metric *f = find_font (nm);
+      val =  Scaled_font_metric::make_scaled_font_metric (f, m);
+      scaled_p_dict_->set (sname, val);
+    }
+  
+
+  return dynamic_cast<Scaled_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 val;
+  if (!tfm_p_dict_->try_retrieve (sname, &val))
     {
-      String path = name  + ".tfm";
-      path = search_path_.find (path);
-      if (path.empty_b ())
-       return 0;
+      String path;
       
-      *mlog << "[" << path;
-      Tex_font_metric  * tfm_p = new Tex_font_metric;
-      tfm_p->read_file (path);
-      *mlog << "]" << flush ;
+      if (path.empty_b())
+       {
+         char * p = ly_find_tfm (name.ch_C());
+         if (p)
+           path = p;
+       }
+
+      if (path.empty_b())
+       path = search_path_.find (name  + ".tfm");
+      if (path.empty_b())
+       return 0;
 
-      tfm_p_dict_[name] = tfm_p;
+      if (verbose_global_b)
+       progress_indication ("[" + path);
+      val = Tex_font_metric::make_tfm (path);
+      if (verbose_global_b)
+       progress_indication ("]");
+
+      unsmob_metrics (val)->name_ = sname;
+      tfm_p_dict_->set (sname, val);
     }
-  return tfm_p_dict_[name];  
+    
+  return
+    dynamic_cast<Tex_font_metric*> (unsmob_metrics (val));
 }
 
 
@@ -58,21 +141,66 @@ Font_metric *
 All_font_metrics::find_font (String name)
 {
   Font_metric * f=0;
-  f = find_tfm (name);
+
+  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'", 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_;
+  SCM l = scm_assoc (ly_str02scm ("default"),
+                    scm_eval2 (ly_symbol2scm ("cmr-alist"), SCM_EOL));
+  
+  if (l != SCM_BOOL_F)
+    def_name = ly_scm2string (gh_cdr (l));
+
+  f= find_afm (def_name);
+  if (f)
+    return f;
+
+  f =  find_tfm (def_name);
   if (f)
     return f;
-  error (_f ("Can't find default font: `%s'", default_font_sz_));
-  error (_f ("(search path: `%s'", search_path_.str ()));
+
+  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;
+}
+
+SCM
+All_font_metrics::font_descriptions () const
+{
+  SCM l[] = {0,0,0};
+
+  l[0] = afm_p_dict_->to_alist ();
+  l[1] = tfm_p_dict_->to_alist ();
+  l[2] = scaled_p_dict_->to_alist ();  
+
+  SCM list = SCM_EOL;
+  for (int i=0; i < 3; i++)
+    {
+      for (SCM s = l[i];  gh_pair_p (s); s = gh_cdr (s))
+       {
+         Font_metric * fm = unsmob_metrics (gh_cdar (s));
+
+         list = gh_cons (fm->description (), list);
+       }
+    }
+  return list;
+}
+
+
+
+Font_metric*
+find_font (String name)
+{
+  return   all_fonts_global_p->find_font (name);
 }