/*
- script-engraver.cc -- implement Script_engraver
+ script-engraver.cc -- engrave Scripts: Articulations.
- (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ source file of the GNU LilyPond music typesetter
+
+ (c) 1997--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-#include "script.hh"
-#include "side-position-interface.hh"
-#include "event.hh"
-#include "stem.hh"
-#include "rhythmic-head.hh"
#include "engraver.hh"
+
+#include "context.hh"
+#include "directional-element-interface.hh"
+#include "international.hh"
#include "note-column.hh"
+#include "paper-column.hh"
+#include "rhythmic-head.hh"
+#include "script-interface.hh"
+#include "side-position-interface.hh"
+#include "slur.hh"
+#include "staff-symbol-referencer.hh"
+#include "stem.hh"
+#include "stream-event.hh"
+#include "warn.hh"
+
+#include "translator.icc"
+
+struct Script_tuple
+{
+ Stream_event *event_;
+ Grob *script_;
+ Script_tuple ()
+ {
+ event_ = 0;
+ script_ = 0;
+ }
+};
class Script_engraver : public Engraver
{
- Link_array<Grob> scripts_;
- Link_array<Music> script_reqs_;
+ vector<Script_tuple> scripts_;
-public:
- TRANSLATOR_DECLARATIONS(Script_engraver);
protected:
- virtual bool try_music (Music*);
- virtual void initialize ();
- virtual void stop_translation_timestep ();
- virtual void start_translation_timestep ();
- virtual void process_music ();
- virtual void acknowledge_grob (Grob_info);
+ void stop_translation_timestep ();
+ void process_music ();
+
+ DECLARE_TRANSLATOR_LISTENER (articulation);
+ DECLARE_ACKNOWLEDGER (rhythmic_head);
+ DECLARE_ACKNOWLEDGER (stem);
+ DECLARE_ACKNOWLEDGER (stem_tremolo);
+ DECLARE_ACKNOWLEDGER (note_column);
+
+public:
+ TRANSLATOR_DECLARATIONS (Script_engraver);
};
+Script_engraver::Script_engraver ()
+{
+}
+
+IMPLEMENT_TRANSLATOR_LISTENER (Script_engraver, articulation);
void
-Script_engraver::initialize ()
+Script_engraver::listen_articulation (Stream_event *ev)
{
- script_reqs_.clear ();
+ /* Discard double articulations for part-combining. */
+ int script_count = scripts_.size ();
+ for (int i = 0; i < script_count; i++)
+ if (ly_is_equal (scripts_[i].event_
+ ->get_property ("articulation-type"),
+ ev->get_property ("articulation-type")))
+ return;
+
+ Script_tuple t;
+ t.event_ = ev;
+ scripts_.push_back (t);
}
-bool
-Script_engraver::try_music (Music *r)
+void
+copy_property (Grob *g, SCM sym, SCM alist)
{
- if (r->is_mus_type ("articulation-event"))
+ if (g->internal_get_property (sym) == SCM_EOL)
{
- script_reqs_.push (r);
- return true;
+ SCM entry = scm_assoc (sym, alist);
+ if (scm_is_pair (entry))
+ g->set_property (sym, scm_cdr (entry));
}
- return false;
}
+/* Add the properties, one by one for each Script. A little memory
+ could be saved by tacking the props onto the Script grob (i.e. make
+ ScriptStaccato , ScriptMarcato, etc. ).
+*/
void
-Script_engraver::process_music ()
+make_script_from_event (Grob *p, Context *tg,
+ SCM art_type, int index)
{
- for (int i=0; i < script_reqs_.size (); i++)
+ SCM alist = tg->get_property ("scriptDefinitions");
+ SCM art = scm_assoc (art_type, alist);
+
+ if (art == SCM_BOOL_F)
+ {
+ /* FIXME: */
+ warning (_ ("do not know how to interpret articulation: "));
+ warning (_ ("scheme encoding: "));
+ scm_write (art_type, scm_current_error_port ());
+ message ("");
+ return;
+ }
+
+ art = scm_cdr (art);
+
+ bool priority_found = false;
+
+ for (SCM s = art; scm_is_pair (s); s = scm_cdr (s))
{
- Music* l=script_reqs_[i];
+ SCM sym = scm_caar (s);
+ SCM type = scm_object_property (sym, ly_symbol2scm ("backend-type?"));
+ if (!ly_is_procedure (type))
+ continue;
- SCM alist = get_property ("scriptDefinitions");
- SCM art = scm_assoc (l->get_mus_property ("articulation-type"), alist);
+ SCM val = scm_cdar (s);
- if (art == SCM_BOOL_F)
+ if (sym == ly_symbol2scm ("script-priority"))
{
- String a = ly_scm2string (l->get_mus_property ("articulation-type"));
- l->origin ()->warning (_f ("Don't know how to interpret articulation `%s'", a.to_str0 ()));
-
- continue;
+ priority_found = true;
+ /* Make sure they're in order of user input by adding index i.
+ Don't use the direction in this priority. Smaller means closer
+ to the head. */
+ int prio = scm_to_int (val) + index;
+
+ val = scm_from_int (prio);
}
- // todo -> use result of articulation-to-scriptdef directly as basic prop list.
- Grob *p =new Item (get_property ("Script"));
- art = ly_cdr (art);
- p->set_grob_property ("script-molecule", ly_car (art));
-
- art = ly_cdr (art);
- bool follow_staff = gh_scm2bool (ly_car (art));
- art = ly_cdr (art);
- SCM relative_stem_dir = ly_car (art);
- art = ly_cdr (art);
-
- SCM force_dir = l->get_mus_property ("direction");
- if (ly_dir_p (force_dir) && !to_dir (force_dir))
- force_dir = ly_car (art);
-
- art = ly_cdr (art);
- int priority = gh_scm2int (ly_car (art));
-
- SCM s = p->get_grob_property ("script-priority");
- if (gh_number_p (s))
- priority = gh_scm2int (s);
-
- /* Make sure they're in order of user input by adding index i.
- Don't use the direction in this priority. Smaller means closer
- to the head.
- */
- priority += i;
-
- if (ly_dir_p (force_dir) && to_dir (force_dir))
- p->set_grob_property ("direction", force_dir);
- else if (to_dir (relative_stem_dir))
- p->set_grob_property ("side-relative-direction", relative_stem_dir);
-
-
- /*
- FIXME: should figure this out in relation with basic props!
- */
- SCM axisprop = get_property ("scriptHorizontal");
- bool xaxis = to_boolean (axisprop);
- Side_position_interface::set_axis (p, xaxis ? X_AXIS : Y_AXIS);
-
- if (!follow_staff && ! xaxis)
- p->set_grob_property ("staff-support", SCM_BOOL_T);
-
- if (!xaxis && follow_staff)
- p->add_offset_callback (Side_position_interface::quantised_position_proc, Y_AXIS);
-
-
- p->set_grob_property ("script-priority", gh_int2scm (priority));
-
- scripts_.push (p);
-
- announce_grob (p, l->self_scm());
+
+ SCM preset = p->get_property_data (sym);
+ if (val == SCM_EOL
+ || scm_call_1 (type, preset) == SCM_BOOL_F)
+ p->set_property (sym, val);
+ }
+
+ if (!priority_found)
+ {
+ p->set_property ("script-priority",
+ scm_from_int (index));
}
}
void
-Script_engraver::acknowledge_grob (Grob_info inf)
+Script_engraver::process_music ()
{
- if (Stem::has_interface (inf.grob_))
+ for (vsize i = 0; i < scripts_.size (); i++)
{
- for (int i=0; i < scripts_.size (); i++)
- {
- Grob*e = scripts_[i];
+ Stream_event *ev = scripts_[i].event_;
- e->set_grob_property ("direction-source", inf.grob_->self_scm ());
- e->add_dependency (inf.grob_);
- Side_position_interface::add_support (e, inf.grob_);
- }
+ Grob *p = make_item ("Script", ev->self_scm ());
+
+ make_script_from_event (p, context (),
+ ev->get_property ("articulation-type"),
+ i);
+
+ scripts_[i].script_ = p;
+
+ SCM force_dir = ev->get_property ("direction");
+ if (is_direction (force_dir) && to_dir (force_dir))
+ p->set_property ("direction", force_dir);
}
- else if (Rhythmic_head::has_interface (inf.grob_))
+}
+
+void
+Script_engraver::acknowledge_stem (Grob_info info)
+{
+ int script_count = scripts_.size ();
+ for (int i = 0; i < script_count; i++)
{
- for (int i=0; i < scripts_.size (); i++)
- {
- Grob *e = scripts_[i];
-
- if (Side_position_interface::get_axis (e) == X_AXIS
- && !e->get_parent (Y_AXIS))
- {
- e->set_parent (inf.grob_, Y_AXIS);
- e->add_dependency (inf.grob_); // ??
- }
- Side_position_interface::add_support (e,inf.grob_);
- }
+ Grob *e = scripts_[i].script_;
+
+ if (to_dir (e->get_property ("side-relative-direction")))
+ e->set_object ("direction-source", info.grob ()->self_scm ());
+
+ Side_position_interface::add_support (e, info.grob ());
+ }
+}
+
+void
+Script_engraver::acknowledge_stem_tremolo (Grob_info info)
+{
+ int script_count = scripts_.size ();
+ for (int i = 0; i < script_count; i++)
+ {
+ Grob *e = scripts_[i].script_;
+ Side_position_interface::add_support (e, info.grob ());
}
- else if (Note_column::has_interface (inf.grob_))
+}
+
+
+void
+Script_engraver::acknowledge_rhythmic_head (Grob_info info)
+{
+ if (info.event_cause ())
{
+ for (vsize i = 0; i < scripts_.size (); i++)
+ {
+ Grob *e = scripts_[i].script_;
- /*
- We make note column the parent of the script. That's not
- correct, but due to seconds in a chord, noteheads may be
- swapped around horizontally. We don't know which note head to
- put it on, so we postpone this decision to
- Script_interface::before_line_breaking ().
-
- */
- for (int i=0; i < scripts_.size (); i++)
- {
- Grob *e = scripts_[i];
-
- if (!e->get_parent (X_AXIS) &&
- Side_position_interface::get_axis (e) == Y_AXIS)
+ if (Side_position_interface::get_axis (e) == X_AXIS
+ && !e->get_parent (Y_AXIS))
{
- e->set_parent (inf.grob_, X_AXIS);
+ e->set_parent (info.grob (), Y_AXIS);
}
+ Side_position_interface::add_support (e, info.grob ());
}
}
}
void
-Script_engraver::stop_translation_timestep ()
+Script_engraver::acknowledge_note_column (Grob_info info)
{
- for (int i=0; i < scripts_.size (); i++)
+ /* Make note column the parent of the script. That is not
+ correct, but due to seconds in a chord, noteheads may be
+ swapped around horizontally.
+
+ As the note head to put it on is not known now, postpone this
+ decision to Script_interface::calc_direction (). */
+ for (vsize i = 0; i < scripts_.size (); i++)
{
+ Grob *e = scripts_[i].script_;
- /*
- TODO: junk staff-support.
- */
- Grob * sc = scripts_[i];
- if (to_boolean (sc->get_grob_property ("staff-support")))
- {
- Side_position_interface::add_staff_support (sc);
- }
- typeset_grob (sc);
+ if (!e->get_parent (X_AXIS)
+ && Side_position_interface::get_axis (e) == Y_AXIS)
+ e->set_parent (info.grob (), X_AXIS);
}
- scripts_.clear ();
}
void
-Script_engraver::start_translation_timestep ()
+Script_engraver::stop_translation_timestep ()
{
- script_reqs_.clear ();
+ scripts_.clear ();
}
+ADD_ACKNOWLEDGER (Script_engraver, rhythmic_head);
+ADD_ACKNOWLEDGER (Script_engraver, stem);
+ADD_ACKNOWLEDGER (Script_engraver, note_column);
+ADD_ACKNOWLEDGER (Script_engraver, stem_tremolo);
+
+ADD_TRANSLATOR (Script_engraver,
+ /* doc */
+ "Handle note scripted articulations.",
+ /* create */
+ "Script ",
-Script_engraver::Script_engraver(){}
+ /* read */
+ "scriptDefinitions ",
-ENTER_DESCRIPTION(Script_engraver,
-/* descr */ " Handles note ornaments generated by @code{\\script}.
-",
-/* creats*/ "Script",
-/* accepts */ "script-event articulation-event",
-/* acks */ "stem-interface rhythmic-head-interface note-column-interface",
-/* reads */ "scriptDefinitions scriptHorizontal",
-/* write */ "");
+ /* write */
+ ""
+ );
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