release: 1.3.131

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

diff --git a/lily/text-engraver.cc b/lily/text-engraver.cc
index 989332320e8184fff491f9548187b0cc0dc95d4d..cb668b414608a00662aede9453005f015fcdaa9b 100644 (file)
--- a/lily/text-engraver.cc
+++ b/lily/text-engraver.cc
@@ -3,18 +3,18 @@
   
   source file of the GNU LilyPond music typesetter
   
-  (c) 1998--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 1998--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   
  */
-#include "dimension-cache.hh"
+
 
 #include "engraver.hh"
 #include "side-position-interface.hh"
-#include "text-item.hh"
+#include "item.hh"
 #include "musical-request.hh"
-#include "note-head.hh"
 #include "stem.hh"
-#include "staff-symbol.hh"
+#include "rhythmic-head.hh"
+
 
 /**
    typeset directions that are  plain text.
@@ -22,108 +22,137 @@
 class Text_engraver : public Engraver
 {
   Link_array<Text_script_req> reqs_;
-  Link_array<Text_item> texts_;
+  Link_array<Item> texts_;
 public:
-
   VIRTUAL_COPY_CONS(Translator);
 protected:
-  virtual bool do_try_music (Music* m);
-  virtual void do_pre_move_processing ();
-  virtual void do_post_move_processing ();
-  virtual void do_process_requests ();
-  virtual void acknowledge_element (Score_element_info);
+  virtual bool try_music (Music* m);
+  virtual void stop_translation_timestep ();
+  virtual void start_translation_timestep ();
+  virtual void create_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 (dynamic_cast<Text_script_req*> (m)
+      && m->get_mus_property ("text-type") != ly_symbol2scm ("dynamic"))
     {
-      reqs_.push (r);
+      reqs_.push (dynamic_cast<Text_script_req*> (m));
       return true;
     }
   return false;
 }
 
-
 void
-Text_engraver::acknowledge_element (Score_element_info i)
+Text_engraver::acknowledge_grob (Grob_info inf)
 {
-  if (Note_head *n = dynamic_cast<Note_head*> (i.elem_l_))
+  if (Rhythmic_head::has_interface (inf.elem_l_))
     {
       for (int i=0; i < texts_.size (); i++)
        {
-         Side_position_interface st (texts_[i]);
-         st.add_support (n);
-         if (st.get_axis( ) == X_AXIS
-             && !texts_[i]->parent_l (Y_AXIS))
-           texts_[i]->set_parent (n, Y_AXIS);
+         Grob*t = texts_[i];
+         Side_position::add_support (t,inf.elem_l_);
+
+         /*
+           ugh.
+          */
+         if (Side_position::get_axis( t) == X_AXIS
+             && !t->parent_l (Y_AXIS))
+           t->set_parent (inf.elem_l_, Y_AXIS);
+         else if (Side_position::get_axis(t) == Y_AXIS
+             && !t->parent_l (X_AXIS))
+           t->set_parent (inf.elem_l_, X_AXIS);
        }
     }
-  if (Stem *n = dynamic_cast<Stem*> (i.elem_l_))
+  
+  if (Stem::has_interface (inf.elem_l_))
     {
       for (int i=0; i < texts_.size (); i++)
        {
-         Side_position_interface st(texts_[i]);
-         st.add_support (n);
+         Side_position::add_support(texts_[i],inf.elem_l_);
        }
     }
 }
 
 void
-Text_engraver::do_process_requests ()
+Text_engraver::create_grobs ()
 {
+  if (texts_.size ())
+    return;
   for (int i=0; i < reqs_.size (); i++)
     {
       Text_script_req * r = reqs_[i];
+      
+      // URG: Text vs TextScript
+      String basic = "TextScript";
+
+      if (r->get_mus_property ("text-type") == ly_symbol2scm ("finger"))
+       {
+         basic = "Fingering";
+       }
+
+      Item *text = new Item (get_property (basic.ch_C ()));
 
-      Text_item *text = new Text_item;
-      Side_position_interface stafy (text);
+      /*
+       FIXME -> need to use basic props.
+       */
+      SCM axisprop = get_property ("scriptHorizontal");
+      
+      Axis ax = to_boolean (axisprop) ? X_AXIS : Y_AXIS;
+      Side_position::set_axis (text, ax);
 
-      SCM axisprop = get_property ("scriptHorizontal",0);
-      if (to_boolean (axisprop))
+#if 0
+      if (r->style_str_ == "finger" && ax == Y_AXIS)
        {
-         stafy.set_axis (X_AXIS);
-         //      text->set_parent (ss, Y_AXIS);
+         /*
+           nicely center the scripts.
+          */ 
+         text->add_offset_callback (Side_position::aligned_on_self_proc, X_AXIS);
+         text->add_offset_callback (Side_position::centered_on_parent_proc, X_AXIS);
        }
-      else
-       stafy.set_axis (Y_AXIS);
+#endif
       
-      text->set_elt_property ("script-priority",
-                           gh_int2scm (200));
 
-      if (r->get_direction ())
-       stafy.set_direction (r->get_direction ());
       
-      text->text_str_ = r->text_str_;
+      /*
+       make sure they're in order by adding i to the priority field.
+       */
+      text->set_grob_property ("script-priority",
+                             gh_int2scm (200 + i));
+
+      if (r->get_direction ())
+       Side_position::set_direction (text, r->get_direction ());
       
-      if (r->style_str_.length_i ())
-       text->set_elt_property ("style", ly_str02scm (r->style_str_.ch_C()));
+      text->set_grob_property ("text", r->get_mus_property ("text"));
       
-      SCM empty = get_property ("textEmptyDimension", 0);
-      if (to_boolean (empty))
-       {
-         text->set_empty (X_AXIS);
-       }
-
-      announce_element (Score_element_info (text, r));
+      SCM nonempty = get_property ("textNonEmpty");
+      if (to_boolean (nonempty))
+       /*
+         empty text: signal that no rods should be applied.  
+        */
+       text->set_grob_property ("no-spacing-rods" , SCM_BOOL_F);
+               
+      announce_grob (text, r);
       texts_.push (text);
     }
 }
 
 void
-Text_engraver::do_pre_move_processing ()
+Text_engraver::stop_translation_timestep ()
 {
   for (int i=0; i < texts_.size (); i++)
     {
-      typeset_element (texts_[i]);
+      Item *ti = texts_[i];
+      Side_position::add_staff_support (ti);
+      typeset_grob (ti);
     }
   texts_.clear ();
 }
 
 void
-Text_engraver::do_post_move_processing ()
+Text_engraver::start_translation_timestep ()
 {
   reqs_.clear ();
 }