/*
- staff-sym-reg.cc -- implement Staff_symbol_engraver
+ staff-symbol-engraver.cc -- implement Staff_symbol_engraver
source file of the GNU LilyPond music typesetter
- (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include "staff-symbol.hh"
#include "score.hh"
#include "paper-column.hh"
-#include "paper-def.hh"
+#include "output-def.hh"
#include "side-position-interface.hh"
#include "engraver.hh"
#include "moment.hh"
/**
- Manage the staff symbol.
- */
-class Staff_symbol_engraver : public Engraver {
- Staff_symbol *span_p_;
+ Manage the staff symbol.
+*/
+class Staff_symbol_engraver : public Engraver
+{
public:
- VIRTUAL_COPY_CONS(Translator);
- Staff_symbol_engraver();
-
+ TRANSLATOR_DECLARATIONS (Staff_symbol_engraver);
+
protected:
- virtual ~Staff_symbol_engraver();
+ Spanner *span_;
- virtual void acknowledge_element (Score_element_info);
- virtual void do_removal_processing();
- virtual void do_creation_processing();
-
+ virtual ~Staff_symbol_engraver ();
+ virtual void acknowledge_grob (Grob_info);
+ virtual void finalize ();
+ virtual void process_music ();
};
-
-Staff_symbol_engraver::~Staff_symbol_engraver()
+Staff_symbol_engraver::~Staff_symbol_engraver ()
{
- assert (!span_p_);
+ assert (!span_);
}
-Staff_symbol_engraver::Staff_symbol_engraver()
+Staff_symbol_engraver::Staff_symbol_engraver ()
{
- span_p_ = 0;
+ span_ = 0;
}
void
-Staff_symbol_engraver::do_creation_processing()
+Staff_symbol_engraver::process_music ()
{
- span_p_ = new Staff_symbol;
- span_p_->set_bounds(LEFT,get_staff_info().command_pcol_l ());
- announce_element (Score_element_info (span_p_, 0));
+ if (!span_)
+ {
+ span_ = make_spanner ("StaffSymbol", SCM_EOL);
+
+ span_->set_bound (LEFT, unsmob_grob (get_property ("currentCommandColumn")));
+ }
}
void
-Staff_symbol_engraver::do_removal_processing()
+Staff_symbol_engraver::finalize ()
{
- span_p_->set_bounds(RIGHT,get_staff_info().command_pcol_l ());
- typeset_element (span_p_);
- span_p_ =0;
+ if (span_)
+ {
+ span_->set_bound (RIGHT, unsmob_grob (get_property ("currentCommandColumn")));
+ }
+ span_ = 0;
}
void
-Staff_symbol_engraver::acknowledge_element (Score_element_info s)
+Staff_symbol_engraver::acknowledge_grob (Grob_info s)
+{
+ s.grob_->set_property ("staff-symbol", span_->self_scm ());
+}
+
+ADD_TRANSLATOR (Staff_symbol_engraver,
+ /* descr */ "Create the constellation of five (default) "
+ "staff lines.",
+ /* creats*/ "StaffSymbol",
+ /* accepts */ "",
+ /* acks */ "grob-interface",
+ /* reads */ "",
+ /* write */ "");
+
+/****************************************************************/
+
+class Tab_staff_symbol_engraver : public Staff_symbol_engraver
{
- s.elem_l_->set_elt_property ("staff-symbol", span_p_->self_scm_);
- s.elem_l_->add_dependency (span_p_); // UGH. UGH. UGH
+public:
+ TRANSLATOR_DECLARATIONS (Tab_staff_symbol_engraver);
+protected:
+ virtual void process_music ();
+};
- SCM ss =s.elem_l_->remove_elt_property ("staff-support");
- if (to_boolean (ss))
+void
+Tab_staff_symbol_engraver::process_music ()
+{
+ bool init = !span_;
+ Staff_symbol_engraver::process_music ();
+ if (init)
{
- Side_position_interface si (s.elem_l_);
- if (si.has_interface_b ())
- si.add_support (span_p_);
+ int k = scm_ilength (get_property ("stringTunings"));
+ if (k >= 0)
+ span_->set_property ("line-count", scm_int2num (k));
}
}
+Tab_staff_symbol_engraver::Tab_staff_symbol_engraver ()
+{
+}
-ADD_THIS_TRANSLATOR(Staff_symbol_engraver);
-
+ADD_TRANSLATOR (Tab_staff_symbol_engraver,
+ /* descr */ "Create a staff-symbol, but look at stringTunings for the number of lines."
+ "staff lines.",
+ /* creats*/ "StaffSymbol",
+ /* accepts */ "",
+ /* acks */ "grob-interface",
+ /* reads */ "stringTunings",
+ /* write */ "");