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 "item.hh"
-
-/*
- TODO:
- sostenuto
- una-chorda / tre-corde
- */
-
-
-/*
- Urg.
- This is almost text
- Problem is:
- * we have no kerning
- * symbols are at wrong place in font
-*/
-
-class Sustain_pedal : public Item
+class Piano_pedal_engraver : public Engraver
{
public:
- VIRTUAL_COPY_CONS (Score_element);
-
+ VIRTUAL_COPY_CONS (Translator);
+ Piano_pedal_engraver ();
+ ~Piano_pedal_engraver ();
protected:
- virtual Molecule do_brew_molecule () const;
- virtual void after_line_breaking ();
+ 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
+ {
+ char const * name_;
+ Span_req* start_req_l_;
+ Drul_array<Span_req*> req_l_drul_;
+ Item* item_p_;
+ };
+
+
+ Pedal_info *info_list_;
};
-void
-Sustain_pedal::after_line_breaking ()
-{
- Side_position_interface i (this);
- Direction d = i.get_direction ();
- i.set_direction (d);
-}
+ADD_THIS_TRANSLATOR (Piano_pedal_engraver);
-Molecule
-Sustain_pedal::do_brew_molecule () const
+Piano_pedal_engraver::Piano_pedal_engraver ()
{
- Molecule mol;
- SCM glyph = get_elt_property ("glyph");
- if (glyph == SCM_UNDEFINED)
- return mol;
- String text = ly_scm2string (glyph);
-
- for (int i = 0; i < text.length_i (); i++)
- {
- // leuke koor dump door tiepo, snapnie helemaal:
- //String idx = ("pedal-") + text[i];
- // urg, Byte* ??
- // braak: waarom vindt String het zo moeilijk om
- // String + char te doen?
- //String idx = "pedal-" + String (&text.byte_C ()[i], 1);
- String idx = String ("pedal-") + String (&text.byte_C ()[i], 1);
- Molecule m = lookup_l ()->afm_find (idx);
- if (m.empty_b ())
- continue;
- Real kern = 0;
- if (i)
- {
- SCM s = scm_eval (gh_list (ly_symbol2scm ("pedal-kerning"),
- ly_str02scm (String (&text.byte_C ()[i - 1], 1).ch_C ()),
- ly_str02scm (String (&text.byte_C ()[i], 1).ch_C ()),
- SCM_UNDEFINED));
- if (gh_number_p (s))
- {
- Staff_symbol_referencer_interface st (this);
- Real staff_space = st.staff_space ();
- kern = gh_scm2double (s) * staff_space;
- }
- }
- mol.add_at_edge (X_AXIS, RIGHT, m, kern);
- }
-
- return mol;
+ info_list_ = 0;
}
-
-/**
- engrave Piano pedals
- */
-class Piano_pedal_engraver : public Engraver
+void
+Piano_pedal_engraver::initialize ()
{
-public:
- VIRTUAL_COPY_CONS (Translator);
- Piano_pedal_engraver ();
+ info_list_ = new Pedal_info[4];
+ Pedal_info *p = info_list_;
-protected:
- 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);
-private:
- Span_req* sustain_start_req_l_;
- Drul_array<Span_req*> sustain_req_l_drul_;
- Sustain_pedal* sustain_p_;
-};
+ char * names [] = { "Sostenuto", "Sustain", "UnaCorda", 0 };
+ char **np = names ;
+ do
+ {
+ p->name_ = *np;
+ p->item_p_ = 0;
+ p->req_l_drul_[START] = 0;
+ p->req_l_drul_[STOP] = 0;
+ p->start_req_l_ = 0;
-ADD_THIS_TRANSLATOR(Piano_pedal_engraver);
+ p++;
+ }
+ while (* (np ++));
+}
-Piano_pedal_engraver::Piano_pedal_engraver ()
+Piano_pedal_engraver::~Piano_pedal_engraver ()
{
- sustain_p_ = 0;
- sustain_req_l_drul_[START] = 0;
- sustain_req_l_drul_[STOP] = 0;
- sustain_start_req_l_ = 0;
+ 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 i)
+Piano_pedal_engraver::acknowledge_grob (Grob_info info)
{
- if (sustain_p_)
+ for (Pedal_info*p = info_list_; p && p->name_; p ++)
{
- if (Note_head* n = dynamic_cast<Note_head*> (i.elem_l_))
- {
- Side_position_interface st (sustain_p_);
- st.add_support (n);
- if (st.get_axis( ) == X_AXIS
- && !sustain_p_->parent_l (Y_AXIS))
- sustain_p_->set_parent (n, Y_AXIS);
- }
- if (Stem* s = dynamic_cast<Stem*> (i.elem_l_))
+ if (p->item_p_)
{
- Side_position_interface st (sustain_p_);
- st.add_support (s);
+ if (Rhythmic_head::has_interface (info.elem_l_))
+ {
+ 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 (info.elem_l_, Y_AXIS);
+ }
+ if (Stem::has_interface (info.elem_l_))
+ {
+ 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))
{
- if (s->span_type_str_ == "sustain")
+ for (Pedal_info*p = info_list_; p->name_; p ++)
{
- sustain_req_l_drul_[s->span_dir_] = s;
- return true;
+ 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;
+ return true;
+ }
}
}
return false;
}
void
-Piano_pedal_engraver::do_process_music ()
+Piano_pedal_engraver::create_grobs ()
{
- SCM s = SCM_UNDEFINED;
- if (sustain_req_l_drul_[STOP] && sustain_req_l_drul_[START])
+ for (Pedal_info*p = info_list_; p && p->name_; p ++)
{
- if (!sustain_start_req_l_)
+ 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])
{
- sustain_req_l_drul_[STOP]->warning (_ ("can't find start of piano_pedal"));
+ if (!p->start_req_l_)
+ {
+ p->req_l_drul_[STOP]->origin ()->warning (_f ("can't find start of piano pedal: `%s'", p->name_));
+ }
+ else
+ {
+ s = gh_cadr (strings);
+ }
+ p->start_req_l_ = p->req_l_drul_[START];
}
- else
+ else if (p->req_l_drul_[STOP])
{
- s = get_property ("stopStartSustain");
- if (!gh_string_p (s))
- s = ly_str02scm ("*Ped.");
+ if (!p->start_req_l_)
+ {
+ p->req_l_drul_[STOP]->origin ()->warning (_f ("can't find start of piano pedal: `%s'", p->name_));
+ }
+ else
+ {
+ s = gh_caddr (strings);
+ }
+ p->start_req_l_ = 0;
}
- sustain_start_req_l_ = sustain_req_l_drul_[START];
- }
- else if (sustain_req_l_drul_[STOP])
- {
- if (!sustain_start_req_l_)
+ else if (p->req_l_drul_[START])
{
- sustain_req_l_drul_[STOP]->warning (_ ("can't find start of piano_pedal"));
+ p->start_req_l_ = p->req_l_drul_[START];
+ s = gh_car (strings);
}
- else
+
+ if (gh_string_p (s))
{
- s = get_property ("stopSustain");
- if (!gh_string_p (s))
- s = ly_str02scm ("*");
+ 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]);
}
- sustain_start_req_l_ = 0;
- }
- else if (sustain_req_l_drul_[START])
- {
- sustain_start_req_l_ = sustain_req_l_drul_[START];
- s = get_property ("startSustain");
- if (!gh_string_p (s))
- s = ly_str02scm ("Ped.");
- }
- if (s != SCM_UNDEFINED)
- {
- sustain_p_ = new Sustain_pedal;
- sustain_p_->set_elt_property ("glyph", s);
-
-
- Side_position_interface si (sustain_p_);
- si.set_axis (Y_AXIS);
-
- /* Hmm,
- If set to empty, it can't be centred
- Howto centre non-fat text?
- sustain_p_->set_empty (X_AXIS);
- */
- sustain_p_->set_elt_property ("self-alignment-X", gh_int2scm (0));
- sustain_p_->add_offset_callback (Side_position_interface::aligned_on_self, X_AXIS);
- sustain_p_->add_offset_callback (Side_position_interface::centered_on_parent, X_AXIS);
- announce_element (Score_element_info (sustain_p_,
- sustain_req_l_drul_[START]
- ? sustain_req_l_drul_[START]
- : sustain_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 ()
{
- if (sustain_p_)
+ Item * sustain = 0;
+ for (Pedal_info*p = info_list_; p->name_; p ++)
{
- side_position (sustain_p_).add_staff_support ();
- typeset_element (sustain_p_);
+ if (p->name_ == String ("Sustain"))
+ sustain = p->item_p_;
+ }
+
+ for (Pedal_info*p = info_list_; p->name_; p ++)
+ {
+ if (p->item_p_)
+ {
+ Side_position_interface::add_staff_support (p->item_p_);
+
+ /*
+ Hmm.
+ */
+ if (p->name_ != String ("Sustain"))
+ {
+ if (sustain)
+ {
+ Side_position_interface::add_support (p->item_p_,sustain);
+ }
+ }
+ typeset_grob (p->item_p_);
+ }
+ p->item_p_ = 0;
}
- sustain_p_ = 0;
}
void
-Piano_pedal_engraver::do_post_move_processing ()
+Piano_pedal_engraver::start_translation_timestep ()
{
- sustain_req_l_drul_[STOP] = 0;
- sustain_req_l_drul_[START] = 0;
+ for (Pedal_info*p = info_list_; p->name_; p ++)
+ {
+ p->req_l_drul_[STOP] = 0;
+ p->req_l_drul_[START] = 0;
+ }
}
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