-/*
- text-engraver.cc -- implement Text_engraver
-
- source file of the GNU LilyPond music typesetter
-
- (c) 1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
+/*
+ This file is part of LilyPond, the GNU music typesetter.
+ Copyright (C) 1998--2015 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 "directional-element-interface.hh"
#include "engraver.hh"
-#include "g-staff-side.hh"
-#include "g-text-item.hh"
-#include "text-def.hh"
-#include "note-head.hh"
-#include "stem.hh"
+#include "item.hh"
+#include "note-column.hh"
+#include "pointer-group-interface.hh"
+#include "side-position-interface.hh"
+#include "stream-event.hh"
+#include "text-interface.hh"
+
+#include "translator.icc"
+
+/**
+ typeset directions that are plain text.
+*/
class Text_engraver : public Engraver
{
- Link_array<Script_req> reqs_;
- Link_array<G_staff_side_item> positionings_;
- Link_array<G_text_item> texts_;
+ vector<Stream_event *> evs_;
+ vector<Grob *> scripts_;
public:
- Text_engraver();
- VIRTUAL_COPY_CONS(Translator);
+ TRANSLATOR_DECLARATIONS (Text_engraver);
protected:
- virtual bool do_try_music (Music* m);
- virtual void do_pre_move_processing ();
- virtual void do_post_move_processing ();
- virtual void do_process_requests ();
- virtual void acknowledge_element (Score_element_info);
+ void stop_translation_timestep ();
+ void process_music ();
+
+ void acknowledge_note_column (Grob_info);
+ void listen_text_script (Stream_event *);
};
-Text_engraver::Text_engraver ()
+void
+Text_engraver::listen_text_script (Stream_event *ev)
{
-
+ evs_.push_back (ev);
}
-bool
-Text_engraver::do_try_music (Music *m)
+void
+Text_engraver::process_music ()
{
- if (Script_req *r = dynamic_cast<Script_req*> (m))
+ for (vsize i = 0; i < evs_.size (); i++)
{
- Text_def * t = dynamic_cast<Text_def*> (r->scriptdef_p_);
- if (!t)
- return false;
- reqs_.push (r);
- return true;
- }
- return false;
-}
+ Stream_event *ev = evs_[i];
+ Item *script = make_item ("TextScript", ev->self_scm ());
+ scripts_.push_back (script);
-void
-Text_engraver::acknowledge_element (Score_element_info i)
-{
- if (Note_head *n = dynamic_cast<Note_head*> (i.elem_l_))
- {
- for (int i=0; i < positionings_.size (); i++)
- {
- positionings_[i]->add_support (n);
- }
- }
- if (Stem *n = dynamic_cast<Stem*> (i.elem_l_))
- {
- for (int i=0; i < positionings_.size (); i++)
- {
- positionings_[i]->add_support (n);
- }
- }
-}
+ int priority = robust_scm2int (script->get_property ("script-priority"),
+ 200);
-void
-Text_engraver::do_process_requests ()
-{
- for (int i=0; i < reqs_.size (); i++)
- {
- Script_req * r = reqs_[i];
- Text_def * t= dynamic_cast<Text_def*> (r->scriptdef_p_);
+ /* see script-engraver.cc */
+ priority += i;
- G_text_item *text = new G_text_item;
- G_staff_side_item *ss = new G_staff_side_item;
- ss->set_victim (text);
+ script->set_property ("script-priority", scm_from_int (priority));
- text->text_str_ = t->text_str_;
+ Direction dir = to_dir (ev->get_property ("direction"));
+ if (dir)
+ set_grob_direction (script, dir);
- announce_element (Score_element_info (text, r));
- announce_element (Score_element_info (ss, r));
+ SCM mark = ev->get_property ("text");
- texts_.push (text);
- positionings_.push (ss);
+ script->set_property ("text", mark);
}
}
void
-Text_engraver::do_pre_move_processing ()
+Text_engraver::acknowledge_note_column (Grob_info info)
{
- for (int i=0; i < texts_.size (); i++)
+ // Make note column (or rest, if there are no heads) the parent of the script.
+ extract_grob_set (info.grob (), "note-heads", heads);
+ Grob *x_parent = (heads.size ()
+ ? info.grob ()
+ : unsmob<Grob> (info.grob ()->get_object ("rest")));
+
+ for (vsize i = 0; i < scripts_.size (); i++)
{
- typeset_element (texts_[i]);
- typeset_element (positionings_[i]);
+ Grob *el = scripts_[i];
+
+ if (el && !el->get_parent (X_AXIS) && x_parent)
+ el->set_parent (x_parent, X_AXIS);
}
- texts_.clear ();
- positionings_.clear ();
}
void
-Text_engraver::do_post_move_processing ()
+Text_engraver::stop_translation_timestep ()
+{
+ evs_.clear ();
+ scripts_.clear ();
+}
+
+Text_engraver::Text_engraver (Context *c)
+ : Engraver (c)
{
- reqs_.clear ();
}
-ADD_THIS_TRANSLATOR(Text_engraver);
+
+void
+Text_engraver::boot ()
+{
+ ADD_LISTENER (Text_engraver, text_script);
+ ADD_ACKNOWLEDGER (Text_engraver, note_column);
+}
+
+ADD_TRANSLATOR (Text_engraver,
+ /* doc */
+ "Create text scripts.",
+
+ /* create */
+ "TextScript ",
+
+ /* read */
+ "",
+
+ /* write */
+ ""
+ );