source file of the GNU LilyPond music typesetter
- (c) 2000 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 2000--2001 Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include "engraver.hh"
#include "musical-request.hh"
-#include "score-element.hh"
+#include "grob.hh"
#include "item.hh"
-#include "lookup.hh"
#include "lily-guile.hh"
-#include "note-head.hh"
+#include "rhythmic-head.hh"
#include "stem.hh"
#include "side-position-interface.hh"
#include "staff-symbol-referencer.hh"
-#include "text-item.hh"
-#include "sustain-pedal.hh"
-
-/*
- TODO:
- * it would be really cool if an engraver could be initialised with a
- string, ie:
-
- Piano_pedal_engraver::"sostenuto"
- Piano_pedal_engraver::"sustain"
- Piano_pedal_engraver::"una-chorda"
-
- */
-
-/*
- Would it? The semantics are unclear, and real benefits are muddy
- too. --hwn
-*/
-
-
+#include "item.hh"
-/**
- engrave Piano pedals symbols.
- */
class Piano_pedal_engraver : public Engraver
{
public:
Piano_pedal_engraver ();
~Piano_pedal_engraver ();
protected:
- virtual void do_creation_processing ();
- virtual bool do_try_music (Music*);
- virtual void do_process_music ();
- virtual void do_pre_move_processing ();
- virtual void do_post_move_processing ();
- virtual void acknowledge_element (Score_element_info);
+ virtual void initialize ();
+ virtual bool try_music (Music*);
+ virtual void stop_translation_timestep ();
+ virtual void start_translation_timestep ();
+ virtual void acknowledge_grob (Grob_info);
+ virtual void create_grobs ();
private:
struct Pedal_info
info_list_ = 0;
}
void
-Piano_pedal_engraver::do_creation_processing()
+Piano_pedal_engraver::initialize ()
{
info_list_ = new Pedal_info[4];
Pedal_info *p = info_list_;
- char * names [] = { "Sostenuto", "Sustain", "UnaChorda", 0 };
+ char * names [] = { "Sostenuto", "Sustain", "UnaCorda", 0 };
char **np = names ;
do
{
p++;
}
- while (*(np ++));
+ while (* (np ++));
}
-Piano_pedal_engraver::~Piano_pedal_engraver()
+Piano_pedal_engraver::~Piano_pedal_engraver ()
{
delete[] info_list_;
}
/*
- Urg: Code dup
- I'm a script
- */
+ Urg: Code dup
+ I'm a script
+ */
void
-Piano_pedal_engraver::acknowledge_element (Score_element_info info)
+Piano_pedal_engraver::acknowledge_grob (Grob_info info)
{
- for (Pedal_info*p = info_list_; p->name_; p ++)
+ for (Pedal_info*p = info_list_; p && p->name_; p ++)
{
if (p->item_p_)
{
- if (Note_head* n = dynamic_cast<Note_head*> (info.elem_l_))
+ if (Rhythmic_head::has_interface (info.elem_l_))
{
- Side_position_interface st (p->item_p_);
- st.add_support (n);
- if (st.get_axis( ) == X_AXIS
+ Side_position_interface::add_support (p->item_p_, info.elem_l_);
+
+ if (Side_position_interface::get_axis (p->item_p_) == X_AXIS
&& !p->item_p_->parent_l (Y_AXIS))
- p->item_p_->set_parent (n, Y_AXIS);
+ p->item_p_->set_parent (info.elem_l_, Y_AXIS);
}
- if (Stem* s = dynamic_cast<Stem*> (info.elem_l_))
+ if (Stem::has_interface (info.elem_l_))
{
- Side_position_interface st (p->item_p_);
- st.add_support (s);
+ Side_position_interface::add_support (p->item_p_,info.elem_l_);
}
}
}
}
bool
-Piano_pedal_engraver::do_try_music (Music *m)
+Piano_pedal_engraver::try_music (Music *m)
{
- if (Span_req * s = dynamic_cast<Span_req*>(m))
+ if (Span_req * s = dynamic_cast<Span_req*> (m))
{
for (Pedal_info*p = info_list_; p->name_; p ++)
{
- if (s->span_type_str_ == p->name_)
+ if (scm_equal_p (s->get_mus_property ("span-type"),
+ ly_str02scm (p->name_))==SCM_BOOL_T)
{
- p->req_l_drul_[s->span_dir_] = s;
+ p->req_l_drul_[s->get_span_dir ()] = s;
return true;
}
}
}
void
-Piano_pedal_engraver::do_process_music ()
+Piano_pedal_engraver::create_grobs ()
{
- for (Pedal_info*p = info_list_; p->name_; p ++)
+ for (Pedal_info*p = info_list_; p && p->name_; p ++)
{
- SCM s = SCM_UNDEFINED;
+ if (p->item_p_ || ! (p->req_l_drul_[STOP] || p->req_l_drul_[START]))
+ continue;
+
+ SCM s = SCM_EOL;
+ SCM strings = get_property (("pedal" + String (p->name_) + "Strings").ch_C ());
+ if (scm_ilength (strings) < 3)
+ continue;
+
if (p->req_l_drul_[STOP] && p->req_l_drul_[START])
{
if (!p->start_req_l_)
{
- p->req_l_drul_[STOP]->warning (_f ("can't find start of piano pedal: %s", p->name_ ));
+ p->req_l_drul_[STOP]->origin ()->warning (_f ("can't find start of piano pedal: `%s'", p->name_));
}
else
{
- s = get_property ("stopStart" + String (p->name_ ));
+ s = gh_cadr (strings);
}
p->start_req_l_ = p->req_l_drul_[START];
}
{
if (!p->start_req_l_)
{
- p->req_l_drul_[STOP]->warning (_f ("can't find start of piano pedal: %s", p->name_ ));
+ p->req_l_drul_[STOP]->origin ()->warning (_f ("can't find start of piano pedal: `%s'", p->name_));
}
else
{
- s = get_property ("stop" + String (p->name_ ));
+ s = gh_caddr (strings);
}
p->start_req_l_ = 0;
}
else if (p->req_l_drul_[START])
{
p->start_req_l_ = p->req_l_drul_[START];
- s = get_property ("start" + String (p->name_ ));
+ s = gh_car (strings);
}
- if (s != SCM_UNDEFINED)
+ if (gh_string_p (s))
{
- if (p->name_ == String ("Sustain"))
- {
- p->item_p_ = new Sustain_pedal;
- p->item_p_->set_elt_property ("text", s);
- }
- else
- {
- p->item_p_ = new Text_item;
- p->item_p_->set_elt_property ("text", s);
- // guh
- p->item_p_->set_elt_property ("style", ly_str02scm ("italic"));
- }
-
- Side_position_interface si (p->item_p_);
- si.set_axis (Y_AXIS);
-
- p->item_p_->set_elt_property ("no-spacing-rods" , SCM_BOOL_T);
- p->item_p_->set_elt_property ("self-alignment-X", gh_int2scm (0));
- p->item_p_->add_offset_callback (Side_position_interface::aligned_on_self, X_AXIS);
- p->item_p_->add_offset_callback (Side_position_interface::centered_on_parent, X_AXIS);
- announce_element (Score_element_info (p->item_p_,
- p->req_l_drul_[START]
- ? p->req_l_drul_[START]
- : p->req_l_drul_[STOP]));
+ String propname = String (p->name_) + "Pedal";
+ p->item_p_ = new Item (get_property (propname.ch_C ()));
+ p->item_p_->set_grob_property ("text", s);
+
+ announce_grob (p->item_p_,
+ p->req_l_drul_[START]
+ ? p->req_l_drul_[START]
+ : p->req_l_drul_[STOP]);
}
+ p->req_l_drul_[START] = 0;
+ p->req_l_drul_[STOP] = 0;
}
}
void
-Piano_pedal_engraver::do_pre_move_processing ()
+Piano_pedal_engraver::stop_translation_timestep ()
{
Item * sustain = 0;
for (Pedal_info*p = info_list_; p->name_; p ++)
{
if (p->item_p_)
{
- side_position (p->item_p_).add_staff_support ();
+ Side_position_interface::add_staff_support (p->item_p_);
+
/*
Hmm.
*/
{
if (sustain)
{
- Side_position_interface st (p->item_p_);
- st.add_support (sustain);
+ Side_position_interface::add_support (p->item_p_,sustain);
}
}
- typeset_element (p->item_p_);
+ typeset_grob (p->item_p_);
}
p->item_p_ = 0;
}
}
void
-Piano_pedal_engraver::do_post_move_processing ()
+Piano_pedal_engraver::start_translation_timestep ()
{
for (Pedal_info*p = info_list_; p->name_; p ++)
{
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