(Changing context

[lilypond.git] / lily / text-engraver.cc

diff --git a/lily/text-engraver.cc b/lily/text-engraver.cc
index f6661e2359ff73f20f8f06fbb9cf78b74c22a684..09e1ab073c7102335cae5eee224d388799891fe2 100644 (file)
--- a/lily/text-engraver.cc
+++ b/lily/text-engraver.cc
@@ -3,128 +3,138 @@
   
   source file of the GNU LilyPond music typesetter
   
-  (c) 1998--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 1998--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   
  */
-
-
+#include "directional-element-interface.hh"
 #include "engraver.hh"
 #include "side-position-interface.hh"
 #include "item.hh"
-#include "musical-request.hh"
+#include "event.hh"
 #include "stem.hh"
-#include "note-head.hh"
+#include "rhythmic-head.hh"
+#include "text-item.hh"
+
 
 /**
    typeset directions that are  plain text.
  */
 class Text_engraver : public Engraver
 {
-  Link_array<Text_script_req> reqs_;
+  Link_array<Music> evs_;
   Link_array<Item> texts_;
 public:
-  VIRTUAL_COPY_CONS(Translator);
+  TRANSLATOR_DECLARATIONS (Text_engraver);
 protected:
-  virtual bool do_try_music (Music* m);
-  virtual void do_pre_move_processing ();
-  virtual void do_post_move_processing ();
-  virtual void do_process_music ();
-  virtual void acknowledge_element (Score_element_info);
+  virtual bool try_music (Music* m);
+  virtual void stop_translation_timestep ();
+  virtual void process_acknowledged_grobs ();
+  virtual void acknowledge_grob (Grob_info);
 };
 
-
 bool
-Text_engraver::do_try_music (Music *m)
+Text_engraver::try_music (Music *m)
 {
-  if (Text_script_req *r = dynamic_cast<Text_script_req*> (m))
+  if (m->is_mus_type ("text-script-event"))
     {
-      reqs_.push (r);
+      evs_.push (m);
       return true;
     }
   return false;
 }
 
-
 void
-Text_engraver::acknowledge_element (Score_element_info inf)
+Text_engraver::acknowledge_grob (Grob_info inf)
 {
-  if (Note_head::has_interface (inf.elem_l_))
+  if (Rhythmic_head::has_interface (inf.grob_))
     {
       for (int i=0; i < texts_.size (); i++)
        {
-         Score_element*t = texts_[i];
-         Side_position::add_support (t,inf.elem_l_);
-         if (Side_position::get_axis( t) == X_AXIS
-             && !t->parent_l (Y_AXIS))
-           t->set_parent (inf.elem_l_, Y_AXIS);
+         Grob*t = texts_[i];
+         Side_position_interface::add_support (t,inf.grob_);
+
+         /*
+           ugh.
+          */
+         if (Side_position_interface::get_axis (t) == X_AXIS
+             && !t->get_parent (Y_AXIS))
+           t->set_parent (inf.grob_, Y_AXIS);
+         else if (Side_position_interface::get_axis (t) == Y_AXIS
+             && !t->get_parent (X_AXIS))
+           t->set_parent (inf.grob_, X_AXIS);
        }
     }
-  if (Stem::has_interface (inf.elem_l_))
+  
+  if (Stem::has_interface (inf.grob_))
     {
       for (int i=0; i < texts_.size (); i++)
        {
-         Side_position::add_support(texts_[i],inf.elem_l_);
+         Side_position_interface::add_support (texts_[i],inf.grob_);
        }
     }
 }
 
 void
-Text_engraver::do_process_music ()
+Text_engraver::process_acknowledged_grobs ()
 {
-  for (int i=0; i < reqs_.size (); i++)
+  if (texts_.size ())
+    return;
+  for (int i=0; i < evs_.size (); i++)
     {
-      Text_script_req * r = reqs_[i];
+      Music * r = evs_[i];
+      
+      // URG: Text vs TextScript
+      Item *text = make_item ("TextScript");
 
-      Item *text = new Item (get_property ("basicTextScriptProperties"));
       
+      Axis ax = Y_AXIS;
+      Side_position_interface::set_axis (text, ax);
+
+      // Hmm
+      int priority = 200;
+      SCM s = text->get_property ("script-priority");
+      if (gh_number_p (s))
+       priority = gh_scm2int (s);
+      
+      /* see script-engraver.cc */
+      priority += i;
+      
+      text->set_property ("script-priority", gh_int2scm (priority));
 
-      SCM axisprop = get_property ("scriptHorizontal");
+      Direction dir = to_dir (r->get_property ("direction"));
+      if (dir)
+       set_grob_direction (text, dir);
 
-      Side_position::set_axis (text, to_boolean (axisprop) ? X_AXIS : Y_AXIS);
 
-      /*
-       make sure they're in order by adding i to the priority field.
-       */
-      text->set_elt_property ("script-priority",
-                           gh_int2scm (200 + i));
+      SCM mark = r->get_property ("text");
 
-      if (r->get_direction ())
-       Side_position::set_direction (text, r->get_direction ());
-      
-      text->set_elt_property ("text",
-                             ly_str02scm ( r->text_str_.ch_C ()));
-      
-      if (r->style_str_.length_i ())
-       text->set_elt_property ("style", ly_str02scm (r->style_str_.ch_C()));
-      
-      SCM empty = get_property ("textNonEmpty");
-      if (to_boolean (empty))
-       {
-         text->set_elt_property ("no-spacing-rods" , SCM_BOOL_F);
-         text->set_extent_callback (0, X_AXIS);
-       }
-      announce_element (text, r);
+      text->set_property ("text", mark);
+      announce_grob (text, r->self_scm ());
       texts_.push (text);
     }
 }
 
 void
-Text_engraver::do_pre_move_processing ()
+Text_engraver::stop_translation_timestep ()
 {
   for (int i=0; i < texts_.size (); i++)
     {
       Item *ti = texts_[i];
-      Side_position::add_staff_support (ti);
-      typeset_element (ti);
+      typeset_grob (ti);
     }
   texts_.clear ();
+  evs_.clear ();
 }
 
-void
-Text_engraver::do_post_move_processing ()
+
+Text_engraver::Text_engraver ()
 {
-  reqs_.clear ();
 }
 
-ADD_THIS_TRANSLATOR(Text_engraver);
-
+ENTER_DESCRIPTION (Text_engraver,
+/* descr */       "Create text-scripts",
+/* creats*/       "TextScript",
+/* accepts */     "text-script-event",
+/* acks  */      "rhythmic-head-interface stem-interface",
+/* reads */       "",
+/* write */       "");