``slikken kreng''

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

diff --git a/lily/mark-engraver.cc b/lily/mark-engraver.cc
index 98fed7723c33f49cb2a5bdd0f3e0a9a9a85e846d..4bbda428240109ac6f86c5e0c8387a81cab4bcf8 100644 (file)
--- a/lily/mark-engraver.cc
+++ b/lily/mark-engraver.cc
@@ -3,52 +3,193 @@
 
   source file of the GNU LilyPond music typesetter
 
- (c) 1998--1999 Jan Nieuwenhuizen <janneke@gnu.org>
+  (c) 1998--2002 Jan Nieuwenhuizen <janneke@gnu.org>
 */
+
+#include <ctype.h>
+#include "bar-line.hh"
 #include "command-request.hh"
-#include "mark-engraver.hh"
+#include "staff-symbol.hh"
 #include "engraver-group-engraver.hh"
-#include "text-item.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_;
+  
+protected:
+  virtual void stop_translation_timestep ();
+  virtual void acknowledge_grob (Grob_info);
+  void create_items (Request*);
+  virtual bool try_music (Music *req);
+  virtual void start_translation_timestep ();
+  virtual void process_music ();
+  
+private:
+  Mark_req * mark_req_;
+};
+
+
 
 
-ADD_THIS_TRANSLATOR (Mark_engraver);
 
 Mark_engraver::Mark_engraver ()
 {
-  mark_req_l_ = 0;
-  axis_ = Y_AXIS;
-  type_ = "mark";
-  visibility_lambda_ = ly_ch_C_eval_scm ("mark-visibility");
+  text_ =0;
+  mark_req_ = 0;
+}
+
+void
+Mark_engraver::acknowledge_grob (Grob_info inf)
+{
+  Grob * s = inf.grob_;
+  if (text_ && Bar_line::has_interface (s))
+    {
+      /*
+       Ugh. Figure out how to do this right at beginning of line, (without
+       creating class Bar_script : public Item).
+      */
+      text_->set_parent (s, X_AXIS);
+    }
+}
+
+void 
+Mark_engraver::stop_translation_timestep ()
+{
+  if (text_)
+    {
+      text_->set_grob_property ("side-support-elements" , get_property ("stavesFound"));
+      typeset_grob (text_);
+      text_ =0;
+    }
+}
+
+
+void
+Mark_engraver::create_items (Request *rq)
+{
+  if (text_)
+    return;
+
+  SCM s = get_property ("RehearsalMark");
+  text_ = new Item (s);
+
+
+  announce_grob(text_, rq->self_scm());
 }
 
+
 void
-Mark_engraver::do_post_move_processing ()
+Mark_engraver::start_translation_timestep ()
 {
-  mark_req_l_ = 0;
+  mark_req_ = 0;
 }
 
 
 bool
-Mark_engraver::do_try_music (Music* r_l)
+Mark_engraver::try_music (Music* r)
 {
-  if (Mark_req *mr = dynamic_cast <Mark_req *> (r_l))
+  if (Mark_req *mr = dynamic_cast <Mark_req *> (r))
     {
-      mark_req_l_ = mr;
+      if (mark_req_ && mr->equal_b (mark_req_))
+       return true;
+      if (mark_req_)
+       return false;
+      mark_req_ = mr;
       return true;
     }
   return false;
 }
 
+
+/*
+
+  TODO: make the increment function in Scheme.
+
+*/
 void
-Mark_engraver::do_process_requests ()
+Mark_engraver::process_music ()
 {
-  if (mark_req_l_)
+  if (mark_req_)
     {
-      create_items (mark_req_l_);
-      text_p_->text_str_ = mark_req_l_->str_;
-      SCM st = gh_str02scm ((text_p_->text_str_.index_any_i ("0123456789")  >= 0 )
-                           ? "mark" : "large");
-      text_p_->set_elt_property ("style",  st);
+      create_items (mark_req_);
+
+      String t;
+
+      /*
+       automatic marks.
+       */
+      
+      SCM m = mark_req_->get_mus_property ("label");
+      if (gh_pair_p (m)) // markup text
+       text_->set_grob_property ("text",m);
+      else 
+       {
+         if (!gh_string_p (m) && !gh_number_p (m)) 
+           m =  get_property ("rehearsalMark");
+         
+         if (gh_number_p (m))
+           {
+             int mark_count = gh_scm2int (m);
+             t = to_string (mark_count);
+             mark_count ++;
+             m = gh_int2scm (mark_count);
+           }
+         else if (gh_string_p (m))
+           {
+             t = ly_scm2string (m);
+             String next;
+             if (t.length ())
+               {
+                 char c = t[0];
+                 c++;
+                 next = to_string (c);
+               }
+             m = ly_str02scm (next.to_str0 ());
+           }
+         else
+           {
+             m = gh_int2scm (1);
+           }
+         
+         daddy_trans_->set_property ("rehearsalMark", m);
+         
+         text_->set_grob_property ("text",
+                                     ly_str02scm (t.to_str0 ()));
+
+         String style = "mark-number";
+         for (int i=0; i < t.length (); i++)
+           {
+             if (!isdigit (t[i])) 
+               {
+                 style = "mark-letter";
+                 break;
+               }
+           }
+         SCM st = ly_symbol2scm (style.to_str0 ());
+         text_->set_grob_property ("font-style",  st);
+       }
+
     }
 }
 
+ENTER_DESCRIPTION(Mark_engraver,
+/* descr */       "",
+/* creats*/       "RehearsalMark",
+/* acks  */       "bar-line-interface", 
+/* reads */       "rehearsalMark stavesFound",
+/* write */       "");