release: 1.2.6

[lilypond.git] / lily / multi-measure-rest-engraver.cc

diff --git a/lily/multi-measure-rest-engraver.cc b/lily/multi-measure-rest-engraver.cc
index e8b23b67b39a2ba516ef6f0ecbbc863334af7c25..51ff44654231651913b3ddc33fbe5a4ae4449007 100644 (file)
--- a/lily/multi-measure-rest-engraver.cc
+++ b/lily/multi-measure-rest-engraver.cc
@@ -1,7 +1,7 @@
 /*
   multi_measure_rest-engraver.cc -- implement Multi_measure_rest_engraver
 
-  (c) 1998 Jan Nieuwenhuizen <janneke@gnu.org>
+  (c) 1998--1999 Jan Nieuwenhuizen <janneke@gnu.org>
        Han-Wen Nienhuys <hanwen@cs.uu.nl>
 */
 
@@ -11,35 +11,59 @@
 #include "multi-measure-rest-engraver.hh"
 #include "score-column.hh"
 #include "time-description.hh"
+#include "bar.hh"
+
 
-IMPLEMENT_IS_TYPE_B1 (Multi_measure_rest_engraver, Engraver);
 ADD_THIS_TRANSLATOR (Multi_measure_rest_engraver);
 
 Multi_measure_rest_engraver::Multi_measure_rest_engraver ()
 {
   start_measure_i_ = 0;
-  rest_item_creation_mom_ = rest_req_stop_mom_ =0;
+  rest_moments_[START] =
+    rest_moments_[STOP] =0;
   multi_measure_req_l_ = 0;
+
+  lastrest_p_ =0;
   mmrest_p_ = 0;
 }
 
-bool
-Multi_measure_rest_engraver::do_try_request (Request* req_l)
+void
+Multi_measure_rest_engraver::acknowledge_element (Score_element_info i)
 {
-  if (!req_l->access_Musical_req () || !req_l->access_Musical_req ()->access_Multi_measure_rest_req ())
-    return false;
-
-  if (multi_measure_req_l_)
-    if (!multi_measure_req_l_->equal_b (req_l)
-       || req_start_mom_ != now_moment ())
-      return false;
-  
-  multi_measure_req_l_ = req_l->access_Musical_req ()->access_Multi_measure_rest_req ();
-  req_start_mom_ = now_moment ();
-  
-  rest_req_stop_mom_ = req_start_mom_ + multi_measure_req_l_->duration_.length ();
+  if (Bar *c = dynamic_cast<Bar*> (i.elem_l_))
+    {
+      if (mmrest_p_) 
+       mmrest_p_->add_column (c);
+      if (lastrest_p_)
+       lastrest_p_->add_column (c);
+    }
+}
 
-  return true;
+bool
+Multi_measure_rest_engraver::do_try_music (Music* req_l)
+{
+  Rhythmic_req *r=0;
+  if (Multi_measure_rest_req *mr = 
+      dynamic_cast<Multi_measure_rest_req *> (req_l))
+    r=mr;
+  else if (Repetitions_req *rr = 
+          dynamic_cast<Repetitions_req *> (req_l))
+    r=rr;
+  if (r)
+    {
+      if (multi_measure_req_l_)
+       if (!multi_measure_req_l_->equal_b (r)
+           || rest_moments_[START] != now_mom ())
+         return false;
+      
+      multi_measure_req_l_ = r;
+      rest_moments_[START] = now_mom ();
+      
+      rest_moments_[STOP] = rest_moments_[START] +
+       multi_measure_req_l_->duration_.length_mom ();
+      return true;
+    }
+  return false;
 }
 
 void
@@ -49,7 +73,9 @@ Multi_measure_rest_engraver::do_process_requests ()
     {
       Time_description const *time = get_staff_info().time_C_;
       mmrest_p_ = new Multi_measure_rest;
-      rest_item_creation_mom_ =  time->when_mom ();
+      if(dynamic_cast<Repetitions_req *> (multi_measure_req_l_))
+       mmrest_p_->set_elt_property (alt_symbol_scm_sym, 
+                                    ly_ch_C_to_scm ("scripts-repeatsign"));
       announce_element (Score_element_info (mmrest_p_, multi_measure_req_l_));
       start_measure_i_ = time->bars_i_;
     }
@@ -58,10 +84,21 @@ Multi_measure_rest_engraver::do_process_requests ()
 void
 Multi_measure_rest_engraver::do_pre_move_processing ()
 {
-  Moment now (now_moment ());
-  if (mmrest_p_ && rest_item_creation_mom_ == now)
+  Moment now (now_mom ());
+  Time_description const *time = get_staff_info().time_C_;
+  if (mmrest_p_ && (now >= rest_moments_[START]) 
+    && !time->whole_in_measure_
+    && (mmrest_p_->column_arr_.size () >= 2))
     {
       typeset_element (mmrest_p_);
+      /*
+       must keep mmrest_p_ around to set measures_i_
+       */
+    }
+  if (lastrest_p_)
+    {
+      typeset_element (lastrest_p_);
+      lastrest_p_ = 0;
     }
 }
 
@@ -69,14 +106,19 @@ void
 Multi_measure_rest_engraver::do_post_move_processing ()
 {
   Time_description const *time = get_staff_info().time_C_;
-  Moment now (now_moment ());
-  if (rest_req_stop_mom_ <= now)
-    multi_measure_req_l_ = 0;
+  Moment now (now_mom ());
 
-  if (mmrest_p_ && (!time->whole_in_measure_ || !multi_measure_req_l_))
+  if (mmrest_p_ && !time->whole_in_measure_)
     {
-      assert (rest_item_creation_mom_ < now);
-      mmrest_p_->measures_i_ = time->bars_i_ - start_measure_i_;
+      lastrest_p_ = mmrest_p_;
+      lastrest_p_->measures_i_ = time->bars_i_ - start_measure_i_;
+      mmrest_p_ = 0;
+    }
+
+  if (now >= rest_moments_[STOP])
+    {
+      multi_measure_req_l_ = 0;
       mmrest_p_ = 0;
     }
 }
+