nu wel 58

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

diff --git a/lily/mark-engraver.cc b/lily/mark-engraver.cc
index 3c25f1aeae76f3122eb686f288635720fed80370..ed8b7be05a0440647abc61f1ef3399e8b15ea249 100644 (file)
--- a/lily/mark-engraver.cc
+++ b/lily/mark-engraver.cc
@@ -3,81 +3,194 @@
 
   source file of the GNU LilyPond music typesetter
 
- (c) 1998 Jan Nieuwenhuizen <janneke@gnu.org>
+  (c) 1998--2002 Jan Nieuwenhuizen <janneke@gnu.org>
 */
 
-#include "mark-engraver.hh"
-#include "text-def.hh"
-#include "script.hh"
-#include "paper-def.hh"
+#include <ctype.h>
+#include "bar-line.hh"
 #include "command-request.hh"
-#include "time-description.hh"
-#include "engraver-group.hh"
+#include "staff-symbol.hh"
+#include "engraver-group-engraver.hh"
+#include "engraver.hh"
+#include "lily-guile.hh"
+#include "paper-column.hh"
+#include "paper-def.hh"
+#include "side-position-interface.hh"
+#include "staff-symbol-referencer.hh"
+#include "item.hh"
+#include "group-interface.hh"
+
+/**
+  put stuff over or next to  bars.  Examples: bar numbers, marginal notes,
+  rehearsal marks.
+ */
+class Mark_engraver : public Engraver
+{
+public:
+  TRANSLATOR_DECLARATIONS(Mark_engraver);
+protected:
+  Item* text_p_;
+  
+protected:
+  virtual void stop_translation_timestep ();
+  virtual void acknowledge_grob (Grob_info);
+  void create_items (Request*);
+  virtual bool try_music (Music *req_l);
+  virtual void start_translation_timestep ();
+  virtual void process_music ();
+  
+private:
+  Mark_req * mark_req_l_;
+};
+
+
+
 
-IMPLEMENT_IS_TYPE_B1 (Mark_engraver, Engraver);
-ADD_THIS_TRANSLATOR (Mark_engraver);
 
 Mark_engraver::Mark_engraver ()
 {
+  text_p_ =0;
   mark_req_l_ = 0;
-  script_p_ = 0;
 }
 
-bool
-Mark_engraver::do_try_request (Request* r_l)
+void
+Mark_engraver::acknowledge_grob (Grob_info inf)
 {
-  if (Mark_req *mr = dynamic_cast <Mark_req *> (r_l))
+  Grob * s = inf.grob_l_;
+  if (text_p_ && Bar_line::has_interface (s))
     {
-      mark_req_l_ = mr;
-      return true;
+      /*
+       Ugh. Figure out how to do this right at beginning of line, (without
+       creating class Bar_script : public Item).
+      */
+      text_p_->set_parent (s, X_AXIS);
     }
-  return false;
 }
 
+void 
+Mark_engraver::stop_translation_timestep ()
+{
+  if (text_p_)
+    {
+      text_p_->set_grob_property ("side-support-elements" , get_property ("stavesFound"));
+      typeset_grob (text_p_);
+      text_p_ =0;
+    }
+}
+
+
 void
-Mark_engraver::do_process_requests ()
-{  
-  if (!mark_req_l_ || script_p_)
+Mark_engraver::create_items (Request *rq)
+{
+  if (text_p_)
     return;
 
-  script_p_ = new Script;
-  script_p_->breakable_b_ = true;
+  SCM s = get_property ("RehearsalMark");
+  text_p_ = new Item (s);
 
-  Text_def *td_p = new Text_def;
 
-  td_p->text_str_ = mark_req_l_->str_;
-  td_p->align_dir_ = CENTER;
+  announce_grob(text_p_, rq->self_scm());
+}
 
-  td_p->style_str_ = td_p->text_str_.index_any_i ("0123456789") >= 0 
-    ? "mark" : "Large";
 
-  script_p_->dir_ = LEFT;
-  script_p_->specs_p_ = td_p->clone ();
-  script_p_->postbreak_only_b_ = true;
-  
-  Scalar padding = get_property ("markScriptPadding");
-  if (padding.length_i() && padding.isnum_b ())
-    {
-      script_p_->padding_f_ = Real(padding);
-    }
-  Scalar break_priority = get_property ("markBreakPriority");
-  if (break_priority.length_i() && break_priority.isnum_b ())
+void
+Mark_engraver::start_translation_timestep ()
+{
+  mark_req_l_ = 0;
+}
+
+
+bool
+Mark_engraver::try_music (Music* r_l)
+{
+  if (Mark_req *mr = dynamic_cast <Mark_req *> (r_l))
     {
-      script_p_->break_priority_i_ = int(break_priority);
+      if (mark_req_l_ && mr->equal_b (mark_req_l_))
+       return true;
+      if (mark_req_l_)
+       return false;
+      mark_req_l_ = mr;
+      return true;
     }
-
-  
-  announce_element (Score_element_info (script_p_, mark_req_l_));
+  return false;
 }
 
-void 
-Mark_engraver::do_pre_move_processing ()
+
+/*
+
+  TODO: make the increment function in Scheme.
+
+*/
+void
+Mark_engraver::process_music ()
 {
-  if (script_p_) 
+  if (mark_req_l_)
     {
-      typeset_element (script_p_);
-      script_p_ = 0;
-      mark_req_l_ = 0;
+      create_items (mark_req_l_);
+
+      String t;
+
+      /*
+       automatic marks.
+       */
+      
+      SCM m = mark_req_l_->get_mus_property ("label");
+      if (gh_pair_p (m)) // markup text
+       text_p_->set_grob_property ("text",m);
+      else 
+       {
+         if (!gh_string_p (m)) 
+           m =  get_property ("rehearsalMark");
+         ;
+         
+         if (gh_number_p (m))
+           {
+             int mark_count = gh_scm2int (m);
+             t = to_str (mark_count);
+             mark_count ++;
+             m = gh_int2scm (mark_count);
+           }
+         else if (gh_string_p (m))
+           {
+             t = ly_scm2string (m);
+             String next;
+             if (t.length_i ())
+               {
+                 char c = t[0];
+                 c++;
+                 next = to_str (c);
+               }
+             m = ly_str02scm (next.ch_C ());
+           }
+         else
+           {
+             m = gh_int2scm (1);
+           }
+         
+         daddy_trans_l_->set_property ("rehearsalMark", m);
+         
+         text_p_->set_grob_property ("text",
+                                     ly_str02scm (t.ch_C ()));
+
+         String style = "mark-number";
+         for (int i=0; i < t.length_i (); i++)
+           {
+             if (!isdigit (t[i])) 
+               {
+                 style = "mark-letter";
+                 break;
+               }
+           }
+         SCM st = ly_symbol2scm (style.ch_C ());
+         text_p_->set_grob_property ("font-style",  st);
+       }
+
     }
 }
 
+ENTER_DESCRIPTION(Mark_engraver,
+/* descr */       "",
+/* creats*/       "RehearsalMark",
+/* acks  */       "bar-line-interface", 
+/* reads */       "rehearsalMark stavesFound",
+/* write */       "");