source file of the GNU LilyPond music typesetter
- (c) 2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 2000--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "note-head.hh"
#include "spanner.hh"
#include "item.hh"
+#include "chord-tremolo-iterator.hh"
+#include "stem-tremolo.hh"
+#include "music-list.hh"
/**
This acknowledges repeated music with "tremolo" style. It typesets
- create dots if appropriate.
+ - create TremoloBeam iso Beam?
*/
class Chord_tremolo_engraver : public Engraver
{
void typeset_beam ();
-public:
- VIRTUAL_COPY_CONS(Translator);
- Chord_tremolo_engraver();
+TRANSLATOR_DECLARATIONS(Chord_tremolo_engraver);
protected:
Repeated_music * repeat_;
Moment beam_start_location_;
int note_head_i_;
-
+
+ bool sequential_body_b_;
Spanner * beam_p_;
Spanner * finished_beam_p_;
-
+ Item * stem_tremolo_;
protected:
- virtual void do_removal_processing();
- virtual void do_process_music();
- virtual bool do_try_music (Music*);
- virtual void acknowledge_element (Score_element_info);
- virtual void do_pre_move_processing();
- virtual void do_post_move_processing();
+ virtual void finalize ();
+ virtual bool try_music (Music*);
+ virtual void acknowledge_grob (Grob_info);
+ virtual void stop_translation_timestep ();
+ virtual void start_translation_timestep ();
+ virtual void process_music ();
};
-Chord_tremolo_engraver::Chord_tremolo_engraver()
+Chord_tremolo_engraver::Chord_tremolo_engraver ()
{
beam_p_ = finished_beam_p_ = 0;
repeat_ =0;
note_head_i_ = 0;
+ stem_tremolo_ = 0;
+ sequential_body_b_ = false;
}
bool
-Chord_tremolo_engraver::do_try_music (Music * m)
+Chord_tremolo_engraver::try_music (Music * m)
{
Repeated_music * rp = dynamic_cast<Repeated_music*> (m);
- if (rp && rp->type_ == "tremolo" && !repeat_)
+ if (rp
+ && rp->get_mus_property ("iterator-ctor") == Chord_tremolo_iterator::constructor_cxx_function
+ && !repeat_)
{
- Moment l = rp->body_length_mom ();
+ Moment l = rp->length_mom ();
repeat_ = rp;
start_mom_ = now_mom ();
stop_mom_ = start_mom_ + l;
+ sequential_body_b_ = dynamic_cast<Sequential_music*> (rp->body ());
// ugh. should generate dots, triplet beams.
note_head_i_ = l.den () <? 4;
return true;
}
+
return false;
}
void
-Chord_tremolo_engraver::do_process_music ()
+Chord_tremolo_engraver::process_music ()
{
- if (repeat_ && !beam_p_)
+ if (repeat_)
{
- beam_p_ = new Spanner (get_property ("basicBeamProperties"));
- Beam::set_interface (beam_p_);
- beam_p_->set_elt_property ("chord-tremolo", SCM_BOOL_T);
+ if (sequential_body_b_ && !beam_p_)
+ {
+ beam_p_ = new Spanner (get_property ("Beam"));
+ beam_p_->set_grob_property ("chord-tremolo", SCM_BOOL_T);
+
+ SCM smp = get_property ("measurePosition");
+ Moment mp
+ = (unsmob_moment (smp)) ? *unsmob_moment (smp) : Moment (0);
+ beam_start_location_ = mp;
+ announce_grob(beam_p_, repeat_->self_scm());
+ }
+ else if (!sequential_body_b_ && !stem_tremolo_)
+ {
+ int flags = intlog2 (note_head_i_ * repeat_->repeat_count ()) -2;
+ if (flags)
+ {
+ stem_tremolo_ = new Item (get_property ("StemTremolo"));
+ announce_grob(stem_tremolo_, repeat_->self_scm());
+ stem_tremolo_->set_grob_property ("flag-count",
+ gh_int2scm (flags));
- SCM smp = get_property ("measurePosition");
- Moment mp = (unsmob_moment (smp)) ? *unsmob_moment (smp) : Moment (0);
- beam_start_location_ = mp;
- announce_element (beam_p_, repeat_);
+ }
+ }
}
}
-
-
void
-Chord_tremolo_engraver::do_removal_processing ()
+Chord_tremolo_engraver::finalize ()
{
typeset_beam ();
if (beam_p_)
{
repeat_->origin ()->warning (_ ("unterminated chord tremolo"));
-#if 0
- finished_beam_p_ = beam_p_;
- typeset_beam ();
-#else
beam_p_->suicide ();
-#endif
}
}
{
if (finished_beam_p_)
{
- typeset_element (finished_beam_p_);
+ typeset_grob (finished_beam_p_);
finished_beam_p_ = 0;
}
}
void
-Chord_tremolo_engraver::acknowledge_element (Score_element_info info)
+Chord_tremolo_engraver::acknowledge_grob (Grob_info info)
{
if (beam_p_)
{
- if (Stem::has_interface (info.elem_l_))
+ if (Stem::has_interface (info.grob_l_))
{
- Score_element * s = info.elem_l_;
- int f = Stem::flag_i (s);
+ Grob * s = info.grob_l_;
+ int f = Stem::duration_log (s);
f = (f > 2) ? f - 2 : 1;
Stem::set_beaming (s, f, LEFT);
Stem::set_beaming (s, f, RIGHT);
don't understand this comment.
--hwn.
*/
- SCM d = s->get_elt_property ("direction");
- if (Stem::type_i (s ) != 1)
+ SCM d = s->get_grob_property ("direction");
+ if (Stem::type_i (s) != 1)
{
- int gap_i =Stem::flag_i (s ) - ((Stem::type_i (s ) >? 2) - 2);
- beam_p_->set_elt_property ("beam-gap", gh_int2scm(gap_i));
+ int gap_i =Stem::duration_log (s) - ((Stem::type_i (s) >? 2) - 2);
+ beam_p_->set_grob_property ("gap", gh_int2scm (gap_i));
}
- s->set_elt_property ("direction", d);
+ s->set_grob_property ("direction", d);
- if (dynamic_cast <Rhythmic_req *> (info.req_l_))
+ if (dynamic_cast <Rhythmic_req *> (info.music_cause ()))
{
Beam::add_stem (beam_p_, s);
}
else
{
String s = _ ("stem must have Rhythmic structure");
- if (info.req_l_)
- info.req_l_->origin ()->warning (s);
+ if (info.music_cause ())
+ info.music_cause ()->origin ()->warning (s);
else
::warning (s);
}
}
- if (Note_head::has_interface (info.elem_l_))
- {
- info.elem_l_->set_elt_property ("duration-log", gh_int2scm (intlog2 (note_head_i_)));
- }
+ }
+ else if (stem_tremolo_ && Stem::has_interface (info.grob_l_))
+ {
+ Stem_tremolo::set_stem (stem_tremolo_, info.grob_l_);
+
+ info.grob_l_->set_grob_property ("duration-log", gh_int2scm (intlog2 (note_head_i_)));
+ }
+
+
+ if (repeat_ && Note_head::has_interface (info.grob_l_))
+ {
+ info.grob_l_->set_grob_property ("duration-log", gh_int2scm (intlog2 (note_head_i_)));
}
}
void
-Chord_tremolo_engraver::do_post_move_processing ()
+Chord_tremolo_engraver::start_translation_timestep ()
{
if (beam_p_ && stop_mom_ == now_mom ())
{
void
-Chord_tremolo_engraver::do_pre_move_processing ()
+Chord_tremolo_engraver::stop_translation_timestep ()
{
typeset_beam ();
+
+ if (stem_tremolo_)
+ {
+ typeset_grob (stem_tremolo_);
+ stem_tremolo_ = 0;
+ }
+
}
-ADD_THIS_TRANSLATOR(Chord_tremolo_engraver);
+
+ENTER_DESCRIPTION(Chord_tremolo_engraver,
+/* descr */ "Generates beams for tremolo repeats.",
+/* creats*/ "Beam",
+/* acks */ "stem-interface note-head-interface",
+/* reads */ "",
+/* write */ "");
projects / lilypond.git / blobdiff