/*
- slur-grav.cc -- implement Slur_engraver
+ slur-engraver.cc -- implement Slur_engraver
- (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include "proto.hh"
-#include "musical-request.hh"
-#include "slur-engraver.hh"
#include "slur.hh"
-#include "debug.hh"
#include "note-column.hh"
-#include "translator-group.hh"
+#include "context.hh"
+#include "directional-element-interface.hh"
+#include "engraver.hh"
+#include "spanner.hh"
+#include "tie.hh"
-ADD_THIS_TRANSLATOR (Slur_engraver);
+/*
+ It is possible that a slur starts and ends on the same note. At
+ least, it is for phrasing slurs: a note can be both beginning and
+ ending of a phrase.
+*/
-bool
-Slur_engraver::do_try_music (Music *req_l)
+class Slur_engraver : public Engraver
{
- if (Span_req *sl = dynamic_cast <Span_req *> (req_l))
- {
- if (sl->span_type_str_ != "slur")
- return false;
- new_slur_req_l_arr_.push (sl);
+ Drul_array<Music *> events_;
+ Music * running_slur_start_;
+ Link_array<Grob> slurs_;
+ Link_array<Grob> end_slurs_;
- return true;
- }
- return false;
-}
+ void set_melisma (bool);
-void
-Slur_engraver::set_melisma (bool m)
+protected:
+ virtual bool try_music (Music*);
+ virtual void acknowledge_grob (Grob_info);
+ virtual void stop_translation_timestep ();
+ virtual void finalize ();
+ virtual void process_music ();
+
+public:
+ TRANSLATOR_DECLARATIONS (Slur_engraver);
+};
+
+Slur_engraver::Slur_engraver ()
{
- Translator_group *where = daddy_trans_l_;
- get_property ("slurMelismaBusy", &where);
- if (!where)
- where = daddy_trans_l_;
-
- daddy_trans_l_->set_property ("slurMelismaBusy", m ? SCM_BOOL_T :SCM_BOOL_F);
+ events_[START] =events_[STOP] = 0;
}
-void
-Slur_engraver::acknowledge_element (Score_element_info info)
+bool
+Slur_engraver::try_music (Music *m)
{
- if (dynamic_cast<Note_column *> (info.elem_l_))
+ if (m->is_mus_type ("slur-event"))
{
- Note_column *col_l =dynamic_cast<Note_column *> (info.elem_l_) ;// ugh
- for (int i = 0; i < slur_l_stack_.size(); i++)
- slur_l_stack_[i]->add_column (col_l);
- for (int i = 0; i < end_slur_l_arr_.size(); i++)
- end_slur_l_arr_[i]->add_column (col_l);
+ Direction d = to_dir (m->get_property ("span-direction"));
+ if (d == START)
+ {
+ events_[START] = m;
+ return true;
+ }
+ else if (d == STOP)
+ {
+ events_[STOP] = m;
+ return true;
+ }
}
+ return false;
}
void
-Slur_engraver::do_removal_processing ()
+Slur_engraver::set_melisma (bool m)
{
- for (int i = 0; i < slur_l_stack_.size(); i++)
- {
- typeset_element (slur_l_stack_[i]);
- }
- slur_l_stack_.clear ();
- SCM wg = get_property ("weAreGraceContext",0);
- bool wgb = to_boolean (wg);
- if (!wgb)
- for (int i=0; i < requests_arr_.size(); i++)
- {
- requests_arr_[i]->warning (_ ("unterminated slur"));
- }
+ context ()->set_property ("slurMelismaBusy", m ? SCM_BOOL_T :SCM_BOOL_F);
}
void
-Slur_engraver::do_process_requests()
+Slur_engraver::acknowledge_grob (Grob_info info)
{
- Array<Slur*> start_slur_l_arr_;
- for (int i=0; i< new_slur_req_l_arr_.size(); i++)
+ Grob *e =info.grob_;
+ if (Note_column::has_interface (info.grob_))
{
- Span_req* slur_req_l = new_slur_req_l_arr_[i];
- // end slur: move the slur to other array
- if (slur_req_l->span_dir_ == STOP)
+ for (int i = slurs_.size (); i--; )
+ Slur::add_column (slurs_[i], e);
+ for (int i = end_slurs_.size (); i-- ; )
+ Slur::add_column (end_slurs_[i], e);
+ }
+ else
+ {
+ SCM inside = e->get_property ("inside-slur");
+ if (Tie::has_interface (e)
+ || to_boolean (inside))
+ {
+ for (int i = slurs_.size (); i--; )
+ Slur::add_extra_encompass (slurs_[i], e);
+ for (int i = end_slurs_.size (); i--; )
+ Slur::add_extra_encompass (end_slurs_[i], e);
+ }
+ else if (inside == SCM_BOOL_F)
{
- if (slur_l_stack_.empty())
+ Grob *slur = slurs_.size()?slurs_[0] : 0;
+ slur = (end_slurs_.size () && !slur)
+ ? end_slurs_[0] : slur;
- slur_req_l->warning (_f ("Can't find both ends of %s", _("slur")));
- else
+ if (slur)
{
- end_slur_l_arr_.push (slur_l_stack_.pop());
- requests_arr_.pop();
+ e->add_offset_callback (Slur::outside_slur_callback_proc, Y_AXIS);
+ e->set_property ("slur", slur->self_scm());
}
}
- else if (slur_req_l->span_dir_ == START)
- {
- // push a new slur onto stack.
- //(use temp. array to wait for all slur STOPs)
- Slur * s_p =new Slur;
-
- requests_arr_.push (slur_req_l);
- start_slur_l_arr_.push (s_p);
- announce_element (Score_element_info (s_p, slur_req_l));
- }
}
- for (int i=0; i < start_slur_l_arr_.size(); i++)
- slur_l_stack_.push (start_slur_l_arr_[i]);
}
void
-Slur_engraver::do_pre_move_processing()
+Slur_engraver::finalize ()
{
- for (int i = 0; i < end_slur_l_arr_.size(); i++)
- {
- typeset_element (end_slur_l_arr_[i]);
- }
- end_slur_l_arr_.clear();
+ if (slurs_.size ())
+ slurs_[0]->warning (_("unterminated slur"));
}
void
-Slur_engraver::do_post_move_processing()
+Slur_engraver::process_music ()
{
- new_slur_req_l_arr_.clear();
- SCM m = get_property ("automaticMelismata",0);
- if (to_boolean (m))
+ if (events_[STOP])
{
- set_melisma (slur_l_stack_.size ());
+ if (slurs_.size() == 0)
+ {
+ events_[STOP]->origin()->warning (_ ("No slur to end"));
+ }
+
+ end_slurs_ = slurs_;
+ slurs_.clear ();
}
+
+ if (events_[START] && slurs_.is_empty ())
+ {
+ Music *ev = events_[START];
+
+ bool double_slurs = to_boolean (get_property ("doubleSlurs"));
+
+ Grob * slur = make_spanner ("Slur", events_[START]->self_scm ());
+ Direction updown = to_dir (ev->get_property ("direction"));
+ if (updown && !double_slurs)
+ set_grob_direction (slur, updown);
+
+ slurs_.push (slur);
+
+ if (double_slurs)
+ {
+ set_grob_direction (slur, DOWN);
+ slur = make_spanner ("Slur", events_[START]->self_scm ());
+ set_grob_direction (slur, UP);
+ slurs_.push (slur);
+ }
+ }
+ set_melisma (slurs_.size ());
+}
+
+void
+Slur_engraver::stop_translation_timestep ()
+{
+ end_slurs_.clear ();
+ events_[START] = events_[STOP] = 0;
}
+ENTER_DESCRIPTION (Slur_engraver,
+ /* descr */ "Build slurs grobs from slur events",
+ /* creats*/ "Slur",
+ /* accepts */ "slur-event",
+ /* acks */ "note-column-interface accidental-interface fingering-interface script-interface tie-interface text-script-interface",
+ /* reads */ "slurMelismaBusy doubleSlurs",
+ /* write */ "");
projects / lilypond.git / blobdiff