-/*
- piano-pedal-engraver.cc -- implement Piano_pedal_engraver
-
- source file of the GNU LilyPond music typesetter
-
- (c) 2000--2004 Jan Nieuwenhuizen <janneke@gnu.org>
-
- Chris Jackson <chris@fluffhouse.org.uk> - extended to support
- bracketed pedals.
+/*
+ piano-pedal-engraver.cc -- implement Piano_pedal_engraver
+
+ source file of the GNU LilyPond music typesetter
+
+ (c) 2000--2008 Jan Nieuwenhuizen <janneke@gnu.org>,
+ Erik Sandberg <mandolaerik@gmail.com>
+
+ Chris Jackson <chris@fluffhouse.org.uk> - extended to support
+ bracketed pedals.
*/
#include "engraver.hh"
-#include "event.hh"
-#include "grob.hh"
-#include "item.hh"
-#include "lily-guile.hh"
-#include "side-position-interface.hh"
-#include "staff-symbol-referencer.hh"
-#include "item.hh"
+
#include "axis-group-interface.hh"
#include "context.hh"
-
#include "directional-element-interface.hh"
+#include "international.hh"
+#include "lily-guile.hh"
#include "note-column.hh"
+#include "side-position-interface.hh"
+#include "staff-symbol-referencer.hh"
+#include "stream-event.hh"
+#include "string-convert.hh"
#include "warn.hh"
+#include "spanner.hh"
+#include "item.hh"
+
+#include "translator.icc"
+
+#include <string.h>
/*
- Urgh. This engraver is too complex. rewrite. --hwn
+ TODO:
+
+ * Junk hardcoded sustain/sostenuto/una_corda distinction;
+ Softcode using (list (sustain-event SustainPedal PianoPedalBracket) ... )
+
+ * Try to use same engraver for dynamics.
+
*/
+/* Ugh: This declaration is duplicated in piano-pedal-performer */
+enum Pedal_type {
+ SOSTENUTO,
+ SUSTAIN,
+ UNA_CORDA,
+ NUM_PEDAL_TYPES
+};
+
+/*
+ Static precalculated data (symbols and strings) for the different
+ pedal types
+*/
+struct Pedal_type_info
+{
+ string base_name_;
+ SCM event_class_sym_;
+ SCM style_sym_;
+ SCM strings_sym_;
+
+ const char *pedal_c_str_;
+
+ Pedal_type_info ()
+ {
+ event_class_sym_ = SCM_EOL;
+ style_sym_ = SCM_EOL;
+ strings_sym_ = SCM_EOL;
+ pedal_c_str_ = 0;
+ }
+ void protect ()
+ {
+ scm_gc_protect_object (event_class_sym_);
+ scm_gc_protect_object (style_sym_);
+ scm_gc_protect_object (strings_sym_);
+ }
+};
+
struct Pedal_info
{
- char const * name_;
+ const Pedal_type_info *type_;
/*
Event for currently running pedal.
*/
- Music* current_bracket_ev_;
+ Stream_event *current_bracket_ev_;
/*
Event for currently starting pedal, (necessary?
-
+
distinct from current_bracket_ev_, since current_bracket_ev_ only
necessary for brackets, not for text style.
*/
- Music* start_ev_;
-
+ Stream_event *start_ev_;
-
/*
Events that were found in this timestep.
*/
- Drul_array<Music*> event_drul_;
- Item* item_;
- Spanner* bracket_; // A single portion of a pedal bracket
- Spanner* finished_bracket_;
-
- /*
- This grob contains all the pedals of the same type on the same staff
- */
- Spanner* line_spanner_;
- Spanner* finished_line_spanner_;
+ Drul_array<Stream_event *> event_drul_;
+ Item *item_;
+ Spanner *bracket_; // A single portion of a pedal bracket
+ Spanner *finished_bracket_;
};
+static Pedal_type_info pedal_types_[NUM_PEDAL_TYPES];
class Piano_pedal_engraver : public Engraver
{
public:
TRANSLATOR_DECLARATIONS (Piano_pedal_engraver);
- ~Piano_pedal_engraver ();
+
protected:
virtual void initialize ();
virtual void finalize ();
- virtual bool try_music (Music*);
- virtual void stop_translation_timestep ();
- virtual void acknowledge_grob (Grob_info);
- virtual void process_music ();
+ DECLARE_TRANSLATOR_LISTENER (sustain);
+ DECLARE_TRANSLATOR_LISTENER (una_corda);
+ DECLARE_TRANSLATOR_LISTENER (sostenuto);
+ DECLARE_ACKNOWLEDGER (note_column);
+ void stop_translation_timestep ();
+ void process_music ();
private:
+ Pedal_info info_list_[NUM_PEDAL_TYPES + 1];
- Pedal_info *info_list_;
-
- /*
- Record a stack of the current pedal spanners, so if more than one pedal
- occurs simultaneously then extra space can be added between them.
- */
-
- Link_array<Spanner> previous_;
- void del_linespanner (Spanner*);
-
void create_text_grobs (Pedal_info *p, bool);
void create_bracket_grobs (Pedal_info *p, bool);
- void typeset_all (Pedal_info*p);
+ void typeset_all (Pedal_info *p);
};
+static void
+init_pedal_types ()
+{
+ const char *names [NUM_PEDAL_TYPES];
+ names[SOSTENUTO] = "Sostenuto";
+ names[SUSTAIN] = "Sustain";
+ names[UNA_CORDA] = "UnaCorda";
+
+ for (int i = 0; i < NUM_PEDAL_TYPES; i++)
+ {
+ const char *name = names[i];
+ /* FooBar */
+ string base_name = name;
+ /* foo-bar */
+ string base_ident = "";
+ int prev_pos=0;
+ int cur_pos;
+ for (cur_pos = 1; name[cur_pos]; cur_pos++)
+ if (isupper (name[cur_pos]))
+ {
+ base_ident = base_ident + String_convert::to_lower (string (name, prev_pos, cur_pos - prev_pos)) + "-";
+ prev_pos = cur_pos;
+ }
+ base_ident += String_convert::to_lower (string (name, prev_pos, cur_pos - prev_pos));
+
+ /*
+ be careful, as we don't want to loose references to the _sym_ members.
+ */
+ Pedal_type_info info;
+ info.event_class_sym_ = scm_str2symbol ((base_ident + "-event").c_str ());
+ info.style_sym_ = scm_str2symbol (("pedal" + base_name + "Style").c_str ());
+ info.strings_sym_ = scm_str2symbol (("pedal" + base_name + "Strings").c_str ());
+
+ info.base_name_ = name;
+ info.pedal_c_str_ = strdup ((base_name + "Pedal").c_str ());
+
+ info.protect ();
+
+ pedal_types_[i] = info;
+ }
+}
+
+ADD_SCM_INIT_FUNC (Piano_pedal_engraver_init_pedal_types_, init_pedal_types);
+
Piano_pedal_engraver::Piano_pedal_engraver ()
{
- info_list_ = 0;
}
void
Piano_pedal_engraver::initialize ()
{
- char * names [] = { "Sostenuto", "Sustain", "UnaCorda", 0 };
-
- info_list_ = new Pedal_info[sizeof (names)/ sizeof (const char*)];
- Pedal_info *p = info_list_;
-
- char **np = names ;
- do
+ for (int i = 0; i < NUM_PEDAL_TYPES; i++)
{
- p->name_ = *np;
- p->item_ = 0;
- p->bracket_ = 0;
- p->finished_bracket_ = 0;
- p->line_spanner_ = 0;
- p->finished_line_spanner_ = 0;
- p->current_bracket_ev_ = 0;
- p->event_drul_[START] = 0;
- p->event_drul_[STOP] = 0;
- p->start_ev_ = 0;
-
- p++;
+ Pedal_type_info *s = &pedal_types_[i];
+ Pedal_info *info = &info_list_[i];
+
+ info->type_ = s;
+ info->item_ = 0;
+ info->bracket_ = 0;
+ info->finished_bracket_ = 0;
+ info->current_bracket_ev_ = 0;
+ info->event_drul_[START] = 0;
+ info->event_drul_[STOP] = 0;
+ info->start_ev_ = 0;
}
- while (* (np ++));
+ info_list_[NUM_PEDAL_TYPES].type_ = 0;
}
-Piano_pedal_engraver::~Piano_pedal_engraver ()
-{
- delete[] info_list_;
-}
/*
Urg: Code dup
I'm a script
*/
void
-Piano_pedal_engraver::acknowledge_grob (Grob_info info)
+Piano_pedal_engraver::acknowledge_note_column (Grob_info info)
{
- for (Pedal_info*p = info_list_; p && p->name_; p ++)
+ for (Pedal_info *p = info_list_; p->type_; p++)
{
- if (Note_column::has_interface (info.grob_))
- {
- if (p->line_spanner_)
- {
- Side_position_interface::add_support (p->line_spanner_, info.grob_);
- add_bound_item (p->line_spanner_,info.grob_);
- }
- if (p->bracket_)
- add_bound_item (p->bracket_,info.grob_);
- if (p->finished_bracket_)
- add_bound_item (p->finished_bracket_,info.grob_);
- }
+ if (p->bracket_)
+ add_bound_item (p->bracket_, info.grob ());
+ if (p->finished_bracket_)
+ add_bound_item (p->finished_bracket_, info.grob ());
}
}
-bool
-Piano_pedal_engraver::try_music (Music *m)
+IMPLEMENT_TRANSLATOR_LISTENER (Piano_pedal_engraver, sostenuto);
+void
+Piano_pedal_engraver::listen_sostenuto (Stream_event *ev)
{
- if (m->is_mus_type ("pedal-event"))
- {
- for (Pedal_info*p = info_list_; p->name_; p ++)
- {
- String nm = p->name_ + String ("Event");
- if (gh_equal_p (m->get_property ("name") ,
- gh_symbol2scm (nm.to_str0())))
- {
- Direction d = to_dir (m->get_property ("span-direction"));
- p->event_drul_[d] = m;
- return true;
- }
- }
- }
- return false;
+ Direction d = to_dir (ev->get_property ("span-direction"));
+ ASSIGN_EVENT_ONCE (info_list_[SOSTENUTO].event_drul_[d], ev);
+}
+
+IMPLEMENT_TRANSLATOR_LISTENER (Piano_pedal_engraver, sustain);
+void
+Piano_pedal_engraver::listen_sustain (Stream_event *ev)
+{
+ Direction d = to_dir (ev->get_property ("span-direction"));
+ ASSIGN_EVENT_ONCE (info_list_[SUSTAIN].event_drul_[d], ev);
+}
+
+IMPLEMENT_TRANSLATOR_LISTENER (Piano_pedal_engraver, una_corda);
+void
+Piano_pedal_engraver::listen_una_corda (Stream_event *ev)
+{
+ Direction d = to_dir (ev->get_property ("span-direction"));
+ ASSIGN_EVENT_ONCE (info_list_[UNA_CORDA].event_drul_[d], ev);
}
void
Piano_pedal_engraver::process_music ()
{
- for (Pedal_info*p = info_list_; p && p->name_; p ++)
+ for (Pedal_info *p = info_list_; p->type_; p++)
{
if (p->event_drul_[STOP] || p->event_drul_[START])
{
- if (!p->line_spanner_)
- {
- String name = String (p->name_) + "PedalLineSpanner";
- p->line_spanner_ = make_spanner (name.to_str0 ());
-
- Music * rq = (p->event_drul_[START] ? p->event_drul_[START] : p->event_drul_[STOP]);
-
-
- announce_grob (p->line_spanner_, rq->self_scm ());
- }
-
/* Choose the appropriate grobs to add to the line spanner
These can be text items or text-spanners
*/
mixed: Ped. _____/\____|
*/
-
- String prop = String ("pedal") + p->name_ + "Style";
- SCM style = get_property (prop.to_str0 ());
+ SCM style = internal_get_property (p->type_->style_sym_);
bool mixed = style == ly_symbol2scm ("mixed");
bool bracket = (mixed
|| style == ly_symbol2scm ("bracket"));
bool text = (style == ly_symbol2scm ("text")
|| mixed);
-
+
if (text && !p->item_)
create_text_grobs (p, mixed);
if (bracket)
Piano_pedal_engraver::create_text_grobs (Pedal_info *p, bool mixed)
{
SCM s = SCM_EOL;
- SCM strings = get_property ( ("pedal" + String (p->name_) + "Strings").to_str0 ());
+ SCM strings = internal_get_property (p->type_->strings_sym_);
if (scm_ilength (strings) < 3)
{
- Music * m = p->event_drul_[START];
+ Stream_event *m = p->event_drul_[START];
if (!m) m = p->event_drul_ [STOP];
- String msg = _ ("Need 3 strings for piano pedals. No pedal made. ");
+ string msg = _f ("expect 3 strings for piano pedals, found: %ld",
+ scm_ilength (strings));
if (m)
m->origin ()->warning (msg);
else
warning (msg);
-
- return ;
+
+ return;
}
-
- if (p->event_drul_[STOP] && p->event_drul_[START])
+
+ if (p->event_drul_[STOP] && p->event_drul_[START])
{
if (!mixed)
{
if (!p->start_ev_)
- {
- p->event_drul_[STOP]->origin ()->warning (_f ("can't find start of piano pedal: `%s'", p->name_));
- }
+ p->event_drul_[STOP]->origin ()->warning (_f ("cannot find start of piano pedal: `%s'", p->type_->base_name_.c_str ()));
else
- {
- s = ly_cadr (strings);
- }
+ s = scm_cadr (strings);
p->start_ev_ = p->event_drul_[START];
}
}
else if (p->event_drul_[STOP])
- {
+ {
if (!mixed)
{
if (!p->start_ev_)
- {
- p->event_drul_[STOP]->origin ()->warning (_f ("can't find start of piano pedal: `%s'", p->name_));
- }
+ p->event_drul_[STOP]->origin ()->warning (_f ("cannot find start of piano pedal: `%s'", p->type_->base_name_.c_str ()));
else
- {
- s = ly_caddr (strings);
- }
+ s = scm_caddr (strings);
p->start_ev_ = 0;
}
}
else if (p->event_drul_[START])
{
p->start_ev_ = p->event_drul_[START];
- s = ly_car (strings);
- if (!mixed)
- {
- /*
- Code dup?! see below.
- */
- if (previous_.size ())
- // add extra space below the previous already-occuring pedal
- Side_position_interface::add_support (p->line_spanner_,
- previous_.top ());
- previous_.push (p->line_spanner_);
- }
- }
-
- if (gh_string_p (s))
+ s = scm_car (strings);
+ }
+
+ if (scm_is_string (s))
{
- String propname = String (p->name_) + "Pedal";
+ const char *propname = p->type_->pedal_c_str_;
+
+ p->item_ = make_item (propname, (p->event_drul_[START]
+ ? p->event_drul_[START]
+ : p->event_drul_[STOP])->self_scm ());
- p->item_ = make_item (propname.to_str0 ());
p->item_->set_property ("text", s);
- Axis_group_interface::add_element (p->line_spanner_, p->item_);
-
- announce_grob (p->item_,
- (p->event_drul_[START]
- ? p->event_drul_[START]
- : p->event_drul_[STOP])->self_scm ());
}
if (!mixed)
}
}
-
void
Piano_pedal_engraver::create_bracket_grobs (Pedal_info *p, bool mixed)
{
if (!p->bracket_ && p->event_drul_[STOP])
{
- String msg =_f ("can't find start of piano pedal bracket: `%s'", p->name_);
+ string msg = _f ("cannot find start of piano pedal bracket: `%s'", p->type_->base_name_.c_str ());
p->event_drul_[STOP]->origin ()->warning (msg);
- p->event_drul_[STOP] = 0;
+ p->event_drul_[STOP] = 0;
}
if (p->event_drul_[STOP])
{
- assert (!p->finished_bracket_);
+ assert (!p->finished_bracket_);
Grob *cmc = unsmob_grob (get_property ("currentMusicalColumn"));
if (!p->event_drul_[START])
{
SCM flare = p->bracket_->get_property ("bracket-flare");
- p->bracket_->set_property ("bracket-flare", scm_cons (gh_car (flare),
- gh_double2scm (0)));
+ if (scm_is_pair (flare))
+ p->bracket_->set_property ("bracket-flare", scm_cons (scm_car (flare),
+ scm_from_double (0)));
}
p->finished_bracket_ = p->bracket_;
p->bracket_ = 0;
+
+ announce_end_grob (p->finished_bracket_, p->event_drul_[STOP]->self_scm ());
+
p->current_bracket_ev_ = 0;
}
p->start_ev_ = p->event_drul_[START];
p->current_bracket_ev_ = p->event_drul_[START];
- p->bracket_ = make_spanner ("PianoPedalBracket");
+ p->bracket_ = make_spanner ("PianoPedalBracket", p->event_drul_[START]->self_scm ());
/*
Set properties so that the stencil-creating function will
if (!p->finished_bracket_)
{
SCM flare = p->bracket_->get_property ("bracket-flare");
- p->bracket_->set_property ("bracket-flare", scm_cons (gh_double2scm (0),gh_cdr (flare)));
+ p->bracket_->set_property ("bracket-flare", scm_cons (scm_from_double (0), scm_cdr (flare)));
}
-
- /* Set this property for 'mixed style' pedals, Ped._______/\ ,
+ /* Set this property for 'mixed style' pedals, Ped._______/\ ,
so the stencil function will shorten the ____ line by the length of the Ped. text.
*/
WTF is pedal-text not the bound of the object? --hwn
*/
if (p->item_)
- p->bracket_->set_property ("pedal-text", p->item_->self_scm ());
- }
-
-
- /*
- We do not use currentMusicalColumn for the left span-point.
- If the column as accidentals (eg on a different stave), the
- currentMusicalColumn is too wide, making the bracket too big.
-
- TODO:
-
- Hmm. What do we do when there are no notes when the spanner starts?
-
- TODO:
-
- what about the right span point?
-
- */
- Axis_group_interface::add_element (p->line_spanner_, p->bracket_);
- announce_grob (p->bracket_, p->event_drul_[START]->self_scm ());
-
- if (!p->event_drul_[STOP])
- {
-
- /*
- code dup. --hwn.
-
- // position new pedal spanner below the current one
- */
- if (previous_.size ())
- Side_position_interface::add_support (p->line_spanner_, previous_.top ());
-
- previous_.push (p->line_spanner_);
+ p->bracket_->set_object ("pedal-text", p->item_->self_scm ());
}
}
void
Piano_pedal_engraver::finalize ()
-{
- for (Pedal_info*p = info_list_; p && p->name_; p ++)
+{
+ for (Pedal_info *p = info_list_; p->type_; p++)
{
- /*
- suicide?
- */
- if (p->line_spanner_
- && !p->line_spanner_->live ())
- p->line_spanner_ = 0;
-
if (p->bracket_
- && !p->bracket_->live ())
+ && !p->bracket_->is_live ())
p->bracket_ = 0;
-
+
if (p->bracket_)
{
SCM cc = get_property ("currentCommandColumn");
Item *c = unsmob_item (cc);
- if (p->line_spanner_)
- {
- p->line_spanner_->set_bound (RIGHT, c);
- }
- p->bracket_ ->set_bound (RIGHT, c);
+ p->bracket_->set_bound (RIGHT, c);
p->finished_bracket_ = p->bracket_;
p->bracket_ = 0;
- p->finished_line_spanner_ = p->line_spanner_;
- p->line_spanner_ = 0;
typeset_all (p);
}
- if (p->line_spanner_)
- {
- p->finished_line_spanner_ = p->line_spanner_;
- typeset_all (p);
- }
}
}
-void
-Piano_pedal_engraver::del_linespanner (Spanner *g)
-{
- int idx = previous_.find_index (g);
- if (idx >= 0)
- previous_.del (idx);
-}
-
void
Piano_pedal_engraver::stop_translation_timestep ()
{
- for (Pedal_info*p = info_list_; p && p->name_; p ++)
+ for (Pedal_info *p = info_list_; p->type_; p++)
{
- if (!p->bracket_)
- {
- p->finished_line_spanner_ = p->line_spanner_;
- p->line_spanner_ = 0;
- del_linespanner (p->finished_line_spanner_);
- }
typeset_all (p);
+ if (p->bracket_ && !p->bracket_->get_bound (LEFT))
+ {
+ Grob *cmc = unsmob_grob (get_property ("currentMusicalColumn"));
+
+ if (!p->bracket_->get_bound (LEFT))
+ p->bracket_->set_bound (LEFT, cmc);
+ }
}
-
- for (Pedal_info*p = info_list_; p->name_; p ++)
+ for (Pedal_info *p = info_list_; p->type_; p++)
{
p->event_drul_[STOP] = 0;
p->event_drul_[START] = 0;
}
}
-
void
-Piano_pedal_engraver::typeset_all (Pedal_info * p)
+Piano_pedal_engraver::typeset_all (Pedal_info *p)
{
/*
- Handle suicide.
+ Handle suicide.
*/
- if (p->finished_line_spanner_
- && !p->finished_line_spanner_->live ())
- p->finished_line_spanner_ = 0;
if (p->finished_bracket_
- && !p->finished_bracket_->live ())
+ && !p->finished_bracket_->is_live ())
p->finished_bracket_ = 0;
-
if (p->item_)
- {
- typeset_grob (p->item_);
- p->item_ = 0;
- }
-
+ p->item_ = 0;
+
if (p->finished_bracket_)
{
- Grob * r = p->finished_bracket_->get_bound (RIGHT);
+ Grob *r = p->finished_bracket_->get_bound (RIGHT);
if (!r)
- {
- p->finished_bracket_->set_bound (RIGHT, unsmob_grob (get_property ("currentMusicalColumn")));
- }
-
- typeset_grob (p->finished_bracket_);
-
- p->finished_bracket_ =0;
- }
+ p->finished_bracket_->set_bound (RIGHT, unsmob_grob (get_property ("currentMusicalColumn")));
- if (p->finished_line_spanner_)
- {
- Grob * l = p->finished_line_spanner_->get_bound (LEFT);
- Grob * r = p->finished_line_spanner_->get_bound (RIGHT);
- if (!r && l)
- p->finished_line_spanner_->set_bound (RIGHT, l);
- else if (!l && r)
- p->finished_line_spanner_->set_bound (LEFT, r);
- else if (!r && !l)
- {
- Grob * cc = unsmob_grob (get_property ("currentMusicalColumn"));
- Item * ci = dynamic_cast<Item*> (cc);
- p->finished_line_spanner_->set_bound (RIGHT, ci);
- p->finished_line_spanner_->set_bound (LEFT, ci);
- }
- typeset_grob (p->finished_line_spanner_);
- p->finished_line_spanner_ = 0;
+ p->finished_bracket_ = 0;
}
}
-ENTER_DESCRIPTION (Piano_pedal_engraver,
- /* descr */ "Engrave piano pedal symbols and brackets.",
- /* creats*/ "SostenutoPedal SustainPedal UnaCordaPedal SostenutoPedalLineSpanner SustainPedalLineSpanner UnaCordaPedalLineSpanner",
- /* accepts */ "pedal-event",
- /* acks */ "note-column-interface",
- /* reads */ "currentCommandColumn "
- "pedalSostenutoStrings pedalSustainStrings "
- "pedalUnaCordaStrings pedalSostenutoStyle "
- "pedalSustainStyle pedalUnaCordaStyle",
- /* write */ "");
+ADD_ACKNOWLEDGER (Piano_pedal_engraver, note_column);
+
+ADD_TRANSLATOR (Piano_pedal_engraver,
+ /* doc */
+ "Engrave piano pedal symbols and brackets.",
+
+ /* create */
+ "PianoPedalBracket "
+ "SostenutoPedal "
+ "SustainPedal "
+ "UnaCordaPedal ",
+
+ /* read */
+ "currentCommandColumn "
+ "pedalSostenutoStrings "
+ "pedalSostenutoStyle "
+ "pedalSustainStrings "
+ "pedalSustainStyle "
+ "pedalUnaCordaStrings "
+ "pedalUnaCordaStyle ",
+
+ /* write */
+ ""
+ );
projects / lilypond.git / blobdiff