/*
- slur-grav.cc -- implement Slur_engraver
+ slur-engraver.cc -- implement Slur_engraver
- (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ source file of the GNU LilyPond music typesetter
+
+ (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.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"
+#include "warn.hh"
+
+/*
+ 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.
+*/
+class Slur_engraver : public Engraver
+{
+ Drul_array<Music *> events_;
+ Music *running_slur_start_;
+ Link_array<Grob> slurs_;
+ Link_array<Grob> end_slurs_;
+
+ void set_melisma (bool);
+
+protected:
+ virtual bool try_music (Music *);
+
+ DECLARE_ACKNOWLEDGER (accidental);
+ DECLARE_ACKNOWLEDGER (dynamic_line_spanner);
+ DECLARE_ACKNOWLEDGER (fingering);
+ DECLARE_ACKNOWLEDGER (note_column);
+ DECLARE_ACKNOWLEDGER (script);
+ DECLARE_ACKNOWLEDGER (text_script);
+ DECLARE_ACKNOWLEDGER (tie);
+ DECLARE_ACKNOWLEDGER (tuplet_number);
+ void acknowledge_extra_object (Grob_info);
+ void stop_translation_timestep ();
+ virtual void finalize ();
+ void process_music ();
+
+public:
+ TRANSLATOR_DECLARATIONS (Slur_engraver);
+};
+
+Slur_engraver::Slur_engraver ()
+{
+ events_[START] = events_[STOP] = 0;
+}
bool
-Slur_engraver::do_try_music (Music *req_l)
+Slur_engraver::try_music (Music *m)
{
- if (Span_req *sl = dynamic_cast <Span_req *> (req_l))
+ if (m->is_mus_type ("slur-event"))
{
- if (sl->span_type_str_ != "slur")
- return false;
- new_slur_req_l_arr_.push (sl);
-
- return true;
+ 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::set_melisma (bool m)
{
- daddy_trans_l_->set_property ("slurMelismaBusy", m ? SCM_BOOL_T :SCM_BOOL_F);
+ context ()->set_property ("slurMelismaBusy", m ? SCM_BOOL_T : SCM_BOOL_F);
}
void
-Slur_engraver::acknowledge_element (Score_element_info info)
+Slur_engraver::acknowledge_note_column (Grob_info info)
{
- if (dynamic_cast<Note_column *> (info.elem_l_))
- {
- 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);
- }
+ Grob *e = info.grob ();
+ 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);
}
void
-Slur_engraver::do_removal_processing ()
+Slur_engraver::acknowledge_extra_object (Grob_info info)
{
- for (int i = 0; i < slur_l_stack_.size(); i++)
+ if (slurs_.is_empty ()
+ && end_slurs_.is_empty ())
+ return ;
+
+ Grob *e = info.grob ();
+ SCM avoid = e->get_property ("avoid-slur");
+ if (Tie::has_interface (e)
+ || avoid == ly_symbol2scm ("inside"))
{
- typeset_element (slur_l_stack_[i]);
+ 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);
}
- slur_l_stack_.clear ();
- SCM wg = get_property ("weAreGraceContext");
- bool wgb = to_boolean (wg);
- if (!wgb)
- for (int i=0; i < requests_arr_.size(); i++)
- {
- requests_arr_[i]->warning (_ ("unterminated slur"));
- }
-}
-
-void
-Slur_engraver::do_process_music()
-{
- Array<Slur*> start_slur_l_arr_;
- for (int i=0; i< new_slur_req_l_arr_.size(); i++)
+ else if (avoid == ly_symbol2scm ("outside")
+ || avoid == ly_symbol2scm ("around"))
{
- 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)
- {
- if (slur_l_stack_.empty())
-
- slur_req_l->warning (_f ("Can't find both ends of %s", _("slur")));
- else
- {
- end_slur_l_arr_.push (slur_l_stack_.pop());
- requests_arr_.pop();
- }
- }
- else if (slur_req_l->span_dir_ == START)
+ Grob *slur = slurs_.size () ? slurs_[0] : 0;
+ slur = (end_slurs_.size () && !slur)
+ ? end_slurs_[0] : slur;
+
+ if (slur)
{
- // 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));
+ chain_offset_callback (e, Slur::outside_slur_callback_proc, Y_AXIS);
+ e->set_object ("slur", slur->self_scm ());
}
}
- for (int i=0; i < start_slur_l_arr_.size(); i++)
- slur_l_stack_.push (start_slur_l_arr_[i]);
+ else
+ e->warning ("Ignoring grob for slur. avoid-slur not set?");
}
void
-Slur_engraver::do_pre_move_processing()
+Slur_engraver::acknowledge_accidental (Grob_info info)
{
- for (int i = 0; i < end_slur_l_arr_.size(); i++)
- {
- typeset_element (end_slur_l_arr_[i]);
- }
- end_slur_l_arr_.clear();
+ acknowledge_extra_object (info);
+}
+
+void
+Slur_engraver::acknowledge_dynamic_line_spanner (Grob_info info)
+{
+ acknowledge_extra_object (info);
+}
+
+void
+Slur_engraver::acknowledge_fingering (Grob_info info)
+{
+ acknowledge_extra_object (info);
}
void
-Slur_engraver::do_post_move_processing()
+Slur_engraver::acknowledge_tuplet_number (Grob_info info)
{
- new_slur_req_l_arr_.clear();
- SCM m = get_property ("automaticMelismata");
- if (to_boolean (m))
+ acknowledge_extra_object (info);
+}
+
+
+void
+Slur_engraver::acknowledge_script (Grob_info info)
+{
+ acknowledge_extra_object (info);
+}
+
+void
+Slur_engraver::acknowledge_text_script (Grob_info info)
+{
+ // if (!info.grob ()->internal_has_interface (ly_symbol2scm ("DynamicText")))
+ acknowledge_extra_object (info);
+}
+
+void
+Slur_engraver::acknowledge_tie (Grob_info info)
+{
+ acknowledge_extra_object (info);
+}
+
+void
+Slur_engraver::finalize ()
+{
+ if (slurs_.size ())
+ slurs_[0]->warning (_ ("unterminated slur"));
+}
+
+void
+Slur_engraver::process_music ()
+{
+ if (events_[STOP])
{
- set_melisma (slur_l_stack_.size ());
+ if (slurs_.size () == 0)
+ events_[STOP]->origin ()->warning (_ ("can't end slur"));
+
+ 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;
}
+#include "translator.icc"
-ADD_THIS_TRANSLATOR(Slur_engraver);
+ADD_ACKNOWLEDGER (Slur_engraver, accidental);
+ADD_ACKNOWLEDGER (Slur_engraver, dynamic_line_spanner);
+ADD_ACKNOWLEDGER (Slur_engraver, fingering);
+ADD_ACKNOWLEDGER (Slur_engraver, note_column);
+ADD_ACKNOWLEDGER (Slur_engraver, script);
+ADD_ACKNOWLEDGER (Slur_engraver, text_script);
+ADD_ACKNOWLEDGER (Slur_engraver, tie);
+ADD_ACKNOWLEDGER (Slur_engraver, tuplet_number);
+ADD_TRANSLATOR (Slur_engraver,
+ /* doc */ "Build slur grobs from slur events",
+ /* create */ "Slur",
+ /* accept */ "slur-event",
+ /* read */ "slurMelismaBusy doubleSlurs",
+ /* write */ "");
projects / lilypond.git / blobdiff