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 "staff-symbol-referencer.hh"
#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 void initialize ();
virtual bool try_music (Music*);
virtual void stop_translation_timestep ();
virtual void start_translation_timestep ();
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_;
}
{
if (Rhythmic_head::has_interface (info.elem_l_))
{
- Side_position::add_support (p->item_p_, info.elem_l_);
+ Side_position_interface::add_support (p->item_p_, info.elem_l_);
- if (Side_position::get_axis(p->item_p_) == X_AXIS
+ if (Side_position_interface::get_axis (p->item_p_) == X_AXIS
&& !p->item_p_->parent_l (Y_AXIS))
p->item_p_->set_parent (info.elem_l_, Y_AXIS);
}
if (Stem::has_interface (info.elem_l_))
{
- Side_position::add_support (p->item_p_,info.elem_l_);
+ Side_position_interface::add_support (p->item_p_,info.elem_l_);
}
}
}
bool
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 (scm_equal_p (s->get_mus_property ("span-type"),
ly_str02scm (p->name_))==SCM_BOOL_T)
{
- p->req_l_drul_[s->get_span_dir()] = s;
+ p->req_l_drul_[s->get_span_dir ()] = s;
return true;
}
}
{
for (Pedal_info*p = info_list_; p && p->name_; p ++)
{
- if (p->item_p_)
+ 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]->origin ()->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_ )).ch_C());
+ s = gh_cadr (strings);
}
p->start_req_l_ = p->req_l_drul_[START];
}
{
if (!p->start_req_l_)
{
- p->req_l_drul_[STOP]->origin ()->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_ )).ch_C());
+ 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_ )).ch_C());
+ s = gh_car (strings);
}
if (gh_string_p (s))
{
String propname = String (p->name_) + "Pedal";
- p->item_p_ = new Item (get_property (propname.ch_C()));
+ p->item_p_ = new Item (get_property (propname.ch_C ()));
p->item_p_->set_grob_property ("text", s);
announce_grob (p->item_p_,
{
if (p->item_p_)
{
- Side_position::add_staff_support (p->item_p_);
+ Side_position_interface::add_staff_support (p->item_p_);
+
/*
Hmm.
*/
{
if (sustain)
{
- Side_position::add_support (p->item_p_,sustain);
+ Side_position_interface::add_support (p->item_p_,sustain);
}
}
typeset_grob (p->item_p_);