release: 1.0.1

[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 2c93ec04c695259a0dd817921a68c801f36729bd..e8b23b67b39a2ba516ef6f0ecbbc863334af7c25 100644 (file)
--- a/lily/multi-measure-rest-engraver.cc
+++ b/lily/multi-measure-rest-engraver.cc
@@ -1,7 +1,8 @@
 /*
   multi_measure_rest-engraver.cc -- implement Multi_measure_rest_engraver
 
-  (c) 1998 Jan Nieuwenhuizen <jan@digicash.com>
+  (c) 1998 Jan Nieuwenhuizen <janneke@gnu.org>
+       Han-Wen Nienhuys <hanwen@cs.uu.nl>
 */
 
 #include "proto.hh"
@@ -9,13 +10,15 @@
 #include "multi-measure-rest.hh"
 #include "multi-measure-rest-engraver.hh"
 #include "score-column.hh"
+#include "time-description.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 ()
 {
-  last_mom_ = 0;
+  start_measure_i_ = 0;
+  rest_item_creation_mom_ = rest_req_stop_mom_ =0;
   multi_measure_req_l_ = 0;
   mmrest_p_ = 0;
 }
@@ -23,62 +26,57 @@ Multi_measure_rest_engraver::Multi_measure_rest_engraver ()
 bool
 Multi_measure_rest_engraver::do_try_request (Request* req_l)
 {
-  if (!req_l->musical () || !req_l->musical ()->multi_measure ())
+  if (!req_l->access_Musical_req () || !req_l->access_Musical_req ()->access_Multi_measure_rest_req ())
     return false;
 
-  multi_measure_req_l_ = req_l->musical ()->multi_measure ();
-  last_mom_ = now_moment () + multi_measure_req_l_->duration_.length ();
+  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 ();
 
   return true;
 }
 
 void
-Multi_measure_rest_engraver::do_removal_processing ()
+Multi_measure_rest_engraver::do_process_requests ()
 {
-  if (mmrest_p_)
+  if (multi_measure_req_l_ && !mmrest_p_)
     {
-      typeset_element (mmrest_p_);
-      mmrest_p_ = 0;
+      Time_description const *time = get_staff_info().time_C_;
+      mmrest_p_ = new Multi_measure_rest;
+      rest_item_creation_mom_ =  time->when_mom ();
+      announce_element (Score_element_info (mmrest_p_, multi_measure_req_l_));
+      start_measure_i_ = time->bars_i_;
     }
 }
 
 void
-Multi_measure_rest_engraver::do_process_requests ()
+Multi_measure_rest_engraver::do_pre_move_processing ()
 {
-  if (mmrest_p_ || !multi_measure_req_l_)
-    return;
-
-  mmrest_p_ = new Multi_measure_rest;
-
-  Scalar prop = get_property ("part");
-  if (prop.isnum_b ()) 
-    part_b_ = prop.to_bool ();
-
-//  if (!part_b_)
-//    return;
-
-  int measures_i = (int)multi_measure_req_l_->duration_.plet_.iso_i_;
-  if (part_b_)
-    mmrest_p_->measures_i_ = measures_i;
-
-  announce_element (Score_elem_info (mmrest_p_, multi_measure_req_l_));
-
-  multi_measure_req_l_ = 0;
+  Moment now (now_moment ());
+  if (mmrest_p_ && rest_item_creation_mom_ == now)
+    {
+      typeset_element (mmrest_p_);
+    }
 }
 
 void
-Multi_measure_rest_engraver::do_pre_move_processing ()
+Multi_measure_rest_engraver::do_post_move_processing ()
 {
-  if (!mmrest_p_)
-    return;
-
-  typeset_element (mmrest_p_);
-  mmrest_p_ = 0;
-
-  if (part_b_)
-    return;
-
-  if (last_mom_ <= now_moment ())
+  Time_description const *time = get_staff_info().time_C_;
+  Moment now (now_moment ());
+  if (rest_req_stop_mom_ <= now)
     multi_measure_req_l_ = 0;
-}
 
+  if (mmrest_p_ && (!time->whole_in_measure_ || !multi_measure_req_l_))
+    {
+      assert (rest_item_creation_mom_ < now);
+      mmrest_p_->measures_i_ = time->bars_i_ - start_measure_i_;
+      mmrest_p_ = 0;
+    }
+}