/*
- slur-engraver.cc -- implement Slur_engraver
+ This file is part of LilyPond, the GNU music typesetter.
- (c) 1997--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ Copyright (C) 1997--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
+
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
-#include "musical-request.hh"
-#include "slur.hh"
-#include "debug.hh"
-#include "note-column.hh"
-#include "translator-group.hh"
#include "engraver.hh"
+
+#include "context.hh"
+#include "directional-element-interface.hh"
+#include "international.hh"
+#include "note-column.hh"
+#include "slur.hh"
#include "spanner.hh"
+#include "stream-event.hh"
+#include "warn.hh"
+#include "translator.icc"
+
+
+/*
+ NOTE NOTE NOTE
+
+ This is largely similar to Phrasing_slur_engraver. Check if fixes
+ apply there too.
+
+ (on principle, engravers don't use inheritance for code sharing)
+
+ */
+
+/*
+ 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
{
- Link_array<Span_req> requests_arr_;
- Link_array<Span_req> new_slur_req_l_arr_;
- Link_array<Grob> slur_l_stack_;
- Link_array<Grob> end_slur_l_arr_;
- Moment last_start_;
+ vector<Stream_event *> start_events_;
+ vector<Stream_event *> stop_events_;
+ vector<Grob*> slurs_;
+ vector<Grob*> end_slurs_;
void set_melisma (bool);
protected:
- virtual bool try_music (Music*);
- virtual void acknowledge_grob (Grob_info);
- virtual void stop_translation_timestep ();
- virtual void start_translation_timestep ();
+ DECLARE_TRANSLATOR_LISTENER (slur);
+ DECLARE_ACKNOWLEDGER (accidental);
+ 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 ();
+ void process_music ();
+
virtual void finalize ();
- virtual void create_grobs ();
+
public:
- VIRTUAL_COPY_CONS (Translator);
- Slur_engraver ();
+ TRANSLATOR_DECLARATIONS (Slur_engraver);
};
Slur_engraver::Slur_engraver ()
{
- last_start_ = Moment (-1);
}
-bool
-Slur_engraver::try_music (Music *req_l)
+IMPLEMENT_TRANSLATOR_LISTENER (Slur_engraver, slur);
+void
+Slur_engraver::listen_slur (Stream_event *ev)
{
- if (Span_req *sl = dynamic_cast <Span_req *> (req_l))
- {
- String t = ly_scm2string (sl->get_mus_property ("span-type"));
- if (t == "abort")
- {
- for (int i = 0; i < slur_l_stack_.size (); i++)
- {
- slur_l_stack_[i]->suicide ();
- }
- slur_l_stack_.clear ();
- for (int i = 0; i < end_slur_l_arr_.size (); i++)
- {
- end_slur_l_arr_[i]->suicide ();
- }
- end_slur_l_arr_.clear ();
- requests_arr_.clear ();
- new_slur_req_l_arr_.clear ();
- }
- else if (t == "slur")
- {
- /*
- Let's not start more than one slur per moment.
- */
- if (sl->get_span_dir () == START)
- {
- if (now_mom () > last_start_)
- {
- new_slur_req_l_arr_.push (sl);
- last_start_ = now_mom ();
- return true;
- }
- }
- else
- {
- new_slur_req_l_arr_.push (sl);
- return true;
- }
- }
- }
- return false;
+ Direction d = to_dir (ev->get_property ("span-direction"));
+ if (d == START)
+ start_events_.push_back(ev);
+ else if (d == STOP)
+ stop_events_.push_back(ev);
+ else ev->origin ()->warning (_f ("direction of %s invalid: %d",
+ "slur-event", int (d)));
}
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_grob (Grob_info info)
+Slur_engraver::acknowledge_note_column (Grob_info info)
{
- if (Note_column::has_interface (info.elem_l_))
- {
- Grob *e =info.elem_l_;
- for (int i = 0; i < slur_l_stack_.size (); i++)
- Slur::add_column (slur_l_stack_[i], e);
- for (int i = 0; i < end_slur_l_arr_.size (); i++)
- Slur::add_column (end_slur_l_arr_[i], e);
- }
+ Grob *e = info.grob ();
+ for (vsize i = slurs_.size (); i--;)
+ Slur::add_column (slurs_[i], e);
+ for (vsize i = end_slurs_.size (); i--;)
+ Slur::add_column (end_slurs_[i], e);
}
void
-Slur_engraver::finalize ()
+Slur_engraver::acknowledge_extra_object (Grob_info info)
{
- for (int i = 0; i < slur_l_stack_.size (); i++)
- {
-#if 0
- typeset_grob (slur_l_stack_[i]);
-#else
- /*
- Let's not typeset unterminated stuff
- */
- slur_l_stack_[i]->suicide ();
-#endif
- }
- 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]->origin ()->warning (_ ("unterminated slur"));
- }
+ Slur::auxiliary_acknowledge_extra_object (info, slurs_, end_slurs_);
+}
+
+void
+Slur_engraver::acknowledge_accidental (Grob_info info)
+{
+ acknowledge_extra_object (info);
+}
+
+void
+Slur_engraver::acknowledge_fingering (Grob_info info)
+{
+ acknowledge_extra_object (info);
+}
+
+void
+Slur_engraver::acknowledge_tuplet_number (Grob_info info)
+{
+ acknowledge_extra_object (info);
+}
+
+void
+Slur_engraver::acknowledge_script (Grob_info info)
+{
+ if (!info.grob ()->internal_has_interface (ly_symbol2scm ("dynamic-interface")))
+ acknowledge_extra_object (info);
+}
+
+void
+Slur_engraver::acknowledge_text_script (Grob_info info)
+{
+ acknowledge_extra_object (info);
+}
+
+void
+Slur_engraver::acknowledge_tie (Grob_info info)
+{
+ acknowledge_extra_object (info);
}
void
-Slur_engraver::create_grobs ()
+Slur_engraver::finalize ()
{
- Link_array<Grob> start_slur_l_arr;
- for (int i=0; i< new_slur_req_l_arr_.size (); i++)
+ for (vsize i = 0; i < slurs_.size (); i++)
{
- Span_req* slur_req_l = new_slur_req_l_arr_[i];
- // end slur: move the slur to other array
- if (slur_req_l->get_span_dir () == STOP)
- {
- if (slur_l_stack_.empty ())
- /* How to shut up this warning, when Voice_devnull_engraver has
- eaten start request? */
- slur_req_l->origin ()->warning (_f ("can't find start of slur"));
- else
- {
- Grob* slur = slur_l_stack_.pop ();
- SCM s = get_property ("slurEndAttachment");
- if (gh_symbol_p (s))
- {
- index_set_cell (slur->get_grob_property ("attachment"), STOP, s);
- }
- end_slur_l_arr_.push (slur);
- requests_arr_.pop ();
- }
- }
- else if (slur_req_l->get_span_dir () == START)
- {
- // push a new slur onto stack.
- // (use temp. array to wait for all slur STOPs)
- Grob* slur = new Spanner (get_property ("Slur"));
- Slur::set_interface (slur);
- SCM s = get_property ("slurBeginAttachment");
- if (gh_symbol_p (s))
- {
- index_set_cell (slur->get_grob_property ("attachment"), START, s);
- }
- start_slur_l_arr.push (slur);
- requests_arr_.push (slur_req_l);
- announce_grob (slur, slur_req_l);
- }
+ slurs_[i]->warning (_ ("unterminated slur"));
+ slurs_[i]->suicide ();
}
- for (int i=0; i < start_slur_l_arr.size (); i++)
- slur_l_stack_.push (start_slur_l_arr[i]);
- new_slur_req_l_arr_.clear ();
}
void
-Slur_engraver::stop_translation_timestep ()
+Slur_engraver::process_music ()
{
- for (int i = 0; i < end_slur_l_arr_.size (); i++)
+ for (vsize i = 0; i < stop_events_.size (); i++)
+ {
+ Stream_event *ev = stop_events_[i];
+ string id = robust_scm2string (ev->get_property ("spanner-id"), "");
+
+ // Find the slur that is ended with this event (by checking the spanner-id)
+ bool ended = false;
+ for (vsize j = slurs_.size (); j--;)
+ {
+ if (id == robust_scm2string (slurs_[j]->get_property ("spanner-id"), ""))
+ {
+ ended = true;
+ end_slurs_.push_back (slurs_[j]);
+ slurs_.erase (slurs_.begin () + j);
+ }
+ }
+ if (!ended)
+ ev->origin ()->warning (_ ("cannot end slur"));
+ }
+
+ for (vsize i = start_events_.size (); i--;)
{
- typeset_grob (end_slur_l_arr_[i]);
+ Stream_event *ev = start_events_[i];
+ string id = robust_scm2string (ev->get_property ("spanner-id"), "");
+ bool have_slur = false;
+ // Check if we already have a slur with the same spanner-id.
+ // In that case, don't create a new slur, but print a warning
+ for (vsize j = 0; j < slurs_.size (); j++)
+ have_slur = have_slur || (id == robust_scm2string (slurs_[j]->get_property ("spanner-id"), ""));
+
+ if (have_slur)
+ {
+ // We already have a slur, so give a warning and completely ignore
+ // the new slur.
+ ev->origin ()->warning(_ ("already have slur"));
+ start_events_.erase (start_events_.begin () + i);
+ }
+ else
+ {
+ Grob *slur = make_spanner ("Slur", ev->self_scm ());
+ Direction updown = to_dir (ev->get_property ("direction"));
+ slur->set_property ("spanner-id", ly_string2scm (id));
+ if (updown)
+ set_grob_direction (slur, updown);
+ slurs_.push_back (slur);
+
+ if (to_boolean (get_property ("doubleSlurs")))
+ {
+ set_grob_direction (slur, DOWN);
+ slur = make_spanner ("Slur", ev->self_scm ());
+ slur->set_property ("spanner-id", ly_string2scm (id));
+ set_grob_direction (slur, UP);
+ slurs_.push_back (slur);
+ }
+ }
}
- end_slur_l_arr_.clear ();
+ set_melisma (slurs_.size ());
}
void
-Slur_engraver::start_translation_timestep ()
+Slur_engraver::stop_translation_timestep ()
{
- new_slur_req_l_arr_.clear ();
- SCM m = get_property ("automaticMelismata");
- if (to_boolean (m))
+ if (Grob *g = unsmob_grob (get_property ("currentCommandColumn")))
+ {
+ for (vsize i = 0; i < end_slurs_.size (); i++)
+ Slur::add_extra_encompass (end_slurs_[i], g);
+
+ if (!start_events_.size ())
+ for (vsize i = 0; i < slurs_.size (); i++)
+ Slur::add_extra_encompass (slurs_[i], g);
+ }
+
+
+ for (vsize i = 0; i < end_slurs_.size (); i++)
{
- set_melisma (slur_l_stack_.size ());
+ Spanner * s = dynamic_cast<Spanner*> (end_slurs_[i]);
+ if (!s->get_bound (RIGHT))
+ s->set_bound (RIGHT, unsmob_grob (get_property ("currentMusicalColumn")));
+ announce_end_grob (s, SCM_EOL);
}
+ end_slurs_.clear ();
+ start_events_.clear ();
+ stop_events_.clear ();
}
+ADD_ACKNOWLEDGER (Slur_engraver, accidental);
+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 ",
+
+ /* read */
+ "slurMelismaBusy "
+ "doubleSlurs ",
-ADD_THIS_TRANSLATOR (Slur_engraver);
+ /* write */
+ ""
+ );
projects / lilypond.git / blobdiff