*** empty log message ***

[lilypond.git] / lily / script.cc

diff --git a/lily/script.cc b/lily/script.cc
index 4e10621df971dec6e9d86ec2f89c7104f5f33ad8..72d022130980d65d8d2ccb7b1a4fc676d6472df0 100644 (file)
--- a/lily/script.cc
+++ b/lily/script.cc
@@ -1,101 +1,114 @@
 /*   
-     script.cc --  implement Script
+  script.cc --  implement Script_interface
   
   source file of the GNU LilyPond music typesetter
   
-  (c) 1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 1999--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   
  */
 
-/*
-
-  TODO: Quantisation support (staccato dots between stafflines)
-
-*/
-#include "debug.hh"
+#include "warn.hh"
 #include "script.hh"
-#include "lookup.hh"
-#include "staff-side.hh"
+#include "font-interface.hh"
+#include "side-position-interface.hh"
 #include "paper-def.hh"
-#include "dimension-cache.hh"
+#include "item.hh"
+#include "molecule.hh"
+#include "lookup.hh"
+#include "stem.hh"
+#include "note-column.hh"
 
-Script::Script ()
+Molecule
+Script_interface::get_molecule (Grob * me, Direction d)
 {
-  staff_side_l_ =0;
-}
+  SCM s = me->get_grob_property ("script-molecule");
+  assert (gh_pair_p (s));
 
-void
-Script::do_substitute_element_pointer (Score_element*o, Score_element*n)
-{
-  if (o == staff_side_l_)
-    staff_side_l_ = dynamic_cast<Staff_side_item*>(n);
-}
+  SCM key = ly_car (s);
+  if (key == ly_symbol2scm ("feta"))
+    {
+      SCM name_entry = ly_cdr (s);
 
+      SCM str = (gh_pair_p (name_entry)) ? index_get_cell (name_entry, d) :  name_entry;
+      return Font_interface::get_default_font (me)->find_by_name ("scripts-" +
+                                                                 ly_scm2string (str));
+    }
+ else if (key == ly_symbol2scm ("accordion"))
+    {
+      return Lookup::accordion (ly_cdr (s), 1.0, Font_interface::get_default_font (me));
+    }
+  else
+    assert (false);
 
+  return Molecule ();
+}
 
-Molecule
-Script::get_molecule(Direction d) const
+MAKE_SCHEME_CALLBACK (Script_interface,before_line_breaking,1);
+SCM
+Script_interface::before_line_breaking (SCM smob)
 {
-  SCM s = get_elt_property ("molecule");
-  assert (s != SCM_UNDEFINED);
+  Grob * me = unsmob_grob (smob);
 
-  SCM key = SCM_CAR (s);
-  if (key == ly_symbol ("feta"))
+  Direction d = Side_position_interface::get_direction (me);
+
+  if (!d)
     {
-      return lookup_l ()->afm_find ("scripts-" +
-                                   ly_scm2string (index_cell (gh_cdr (s), d)));
+      /*
+       we should not have `arbitrary' directions. 
+      */
+      programming_error ("Script direction not yet known!");
+      d = DOWN;
     }
-  else if (key == ly_symbol ("accordion"))
+  
+  Side_position_interface::set_direction (me,d);
+
+  if (Grob * par = me->get_parent (X_AXIS))
     {
-      return lookup_l ()->accordion (s, paper_l()->get_var("interline"));
+      Grob * stem = Note_column::get_stem (par);
+      if (stem && Stem::first_head (stem))
+       {
+         me->set_parent (Stem::first_head (stem), X_AXIS);
+       }
     }
-
-  else assert (false);
-
-  return Molecule ();
+  
+  return SCM_UNSPECIFIED;
 }
 
 
-void
-Script::do_pre_processing ()
-{
-  /*
-    center my self on the note head.
-   */
-  Graphical_element * e = staff_side_l_->parent_l(X_AXIS);
-  translate_axis (e->extent (X_AXIS).center (), X_AXIS);
-}
+MAKE_SCHEME_CALLBACK (Script_interface,brew_molecule,1);
 
-void
-Script::do_post_processing ()
+SCM
+Script_interface::brew_molecule (SCM smob)
 {
-  Direction d =  staff_side_l_->dir_;
-  Molecule m (get_molecule(d));
-
-  /*
-    UGH UGH UGH
-   */
-  if (staff_side_l_->get_elt_property ("no-staff-support") == SCM_UNDEFINED) 
-    translate_axis (- m.dim_[Y_AXIS][Direction (-d)], Y_AXIS);
-}
+  Grob *me= unsmob_grob (smob);
 
-void
-Script::set_staff_side (Staff_side_item*g)
-{
-  staff_side_l_ = g;
-  add_dependency (g);
-  set_parent (g, Y_AXIS);
+  Direction dir = Side_position_interface::get_direction (me);
+  if (!dir)
+    {
+      programming_error ("Script direction not known, but molecule wanted.");
+      dir= DOWN;
+    }
+  
+  return get_molecule (me, dir).smobbed_copy ();
 }
 
-Molecule*
-Script::do_brew_molecule_p () const
+
+
+struct Text_script
 {
-  return new Molecule (get_molecule (staff_side_l_->dir_));
-}
+    static bool has_interface (Grob*);
+};
 
-void
-Script::do_print () const
+struct Skript
 {
+    static bool has_interface (Grob*);
+};
 
-}
+ADD_INTERFACE (Text_script,"text-script-interface",
+  "Any text script",
+  "script-priority");
+
+ADD_INTERFACE (Script_interface, "script-interface",
+  "",
+  "script-priority script-molecule");