/*
- bar-number-grav.cc -- implement Bar_number_engraver
+ bar-number-engraver.cc -- implement Bar_number_engraver
source file of the GNU LilyPond music typesetter
- (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-
-#include "lily-guile.hh"
#include "paper-column.hh"
-#include "paper-def.hh"
+#include "output-def.hh"
#include "side-position-interface.hh"
-#include "staff-symbol.hh"
-#include "item.hh"
-#include "moment.hh"
#include "engraver.hh"
-#include "protected-scm.hh"
+#include "context.hh"
+#include "grob-array.hh"
+
+#include "translator.icc"
+/*
+ TODO: detect the top staff (stavesFound), and acknowledge staff-group
+ system-start-delims. If we find these, and the top staff is in the
+ staff-group, add padding to the bar number.
+*/
class Bar_number_engraver : public Engraver
{
protected:
- Item* text_p_;
-
- Protected_scm staffs_;
-
+ Item *text_;
protected:
- virtual void do_pre_move_processing ();
- virtual void acknowledge_element (Score_element_info);
- void create_items();
- void do_process_music ();
-public:
- VIRTUAL_COPY_CONS(Translator);
- Bar_number_engraver();
+ void stop_translation_timestep ();
+ DECLARE_ACKNOWLEDGER (break_aligned);
+ DECLARE_ACKNOWLEDGER (break_alignment);
+ void process_music ();
+ void create_items ();
+ TRANSLATOR_DECLARATIONS (Bar_number_engraver);
};
void
-Bar_number_engraver::do_process_music ()
+Bar_number_engraver::process_music ()
{
- // todo include (&&!time->cadenza_b_ )
- SCM bn = get_property("currentBarNumber");
- SCM smp = get_property ("measurePosition");
- Moment mp = (unsmob_moment (smp)) ? *unsmob_moment (smp) : Moment (0);
-
- if (gh_number_p (bn) &&
- !mp && now_mom () > Moment (0))
- {
- create_items ();
+ // todo include (&&!time->cadenza_b_)
+
+ SCM wb = get_property ("whichBar");
- // guh.
- text_p_->set_elt_property ("text",
- ly_str02scm (to_str (gh_scm2int (bn)).ch_C()));
+ if (scm_is_string (wb))
+ {
+ Moment mp (robust_scm2moment (get_property ("measurePosition"), Moment (0)));
+ if (mp.main_part_ == Rational (0))
+ {
+ SCM bn = get_property ("currentBarNumber");
+ SCM proc = get_property ("barNumberVisibility");
+ if (scm_is_number (bn) && ly_is_procedure (proc)
+ && to_boolean (scm_call_1 (proc, bn)))
+ {
+ create_items ();
+ // guh.
+ text_->set_property
+ ("text", scm_number_to_string (bn, scm_from_int (10)));
+ }
+ }
}
}
-ADD_THIS_TRANSLATOR(Bar_number_engraver);
-
Bar_number_engraver::Bar_number_engraver ()
{
- text_p_ =0;
- staffs_ = SCM_EOL;
+ text_ = 0;
}
-
-
+/*
+ see rehearsal mark comments.
+ */
void
-Bar_number_engraver::acknowledge_element (Score_element_info inf)
+Bar_number_engraver::acknowledge_break_aligned (Grob_info inf)
{
- Score_element * s = inf.elem_l_;
- if (Staff_symbol::has_interface (s))
- {
- staffs_ = gh_cons (inf.elem_l_->self_scm_, staffs_);
- }
- else if (text_p_
- && dynamic_cast<Item*> (s)
- && s->get_elt_property ("break-align-symbol") == ly_symbol2scm ("Left_edge_item"))
+ Grob *s = inf.grob ();
+ if (text_
+ && !text_->get_parent (X_AXIS)
+ && dynamic_cast<Item *> (s)
+ && (s->get_property_data ("break-align-symbol")
+ == text_->get_property_data ("break-align-symbol")))
{
/*
By default this would land on the Paper_column -- so why
doesn't it work when you leave this out? */
- text_p_->set_parent (s, X_AXIS);
+ text_->set_parent (s, X_AXIS);
}
}
-void
-Bar_number_engraver::do_pre_move_processing ()
+
+void
+Bar_number_engraver::acknowledge_break_alignment (Grob_info inf)
{
- if (text_p_)
+ Grob *s = inf.grob ();
+ if (text_
+ && dynamic_cast<Item *> (s))
{
- text_p_->set_elt_property ("side-support-elements", staffs_);
- typeset_element (text_p_);
- text_p_ =0;
+ text_->set_parent (s, X_AXIS);
}
}
-
void
-Bar_number_engraver::create_items ()
+Bar_number_engraver::stop_translation_timestep ()
{
- if (text_p_)
- return;
-
- SCM b = get_property ("basicBarNumberProperties");
- text_p_ = new Item (b);
- Side_position::set_axis(text_p_,Y_AXIS);
-
- SCM prop = get_property ("barNumberDirection");
- if (!isdir_b (prop))
- {
- prop = gh_int2scm (UP);
- }
- text_p_->set_elt_property ("direction", prop);
-
- SCM padding = get_property ("barNumberScriptPadding");
- if (gh_number_p(padding))
+ if (text_)
{
- text_p_->set_elt_property ("padding", padding);
- }
- else
- {
- text_p_
- ->set_elt_property ("padding",
- gh_double2scm(paper_l ()->get_var ("interline")));
+ text_->set_object ("side-support-elements",
+ grob_list_to_grob_array (get_property ("stavesFound")));
+ text_ = 0;
}
+}
+void
+Bar_number_engraver::create_items ()
+{
+ if (text_)
+ return;
- announce_element (text_p_, 0);
+ text_ = make_item ("BarNumber", SCM_EOL);
}
+
+ADD_ACKNOWLEDGER(Bar_number_engraver,break_aligned);
+ADD_ACKNOWLEDGER(Bar_number_engraver,break_alignment);
+
+ADD_TRANSLATOR (Bar_number_engraver,
+ /* doc */ "A bar number is created whenever measurePosition "
+ "is zero and when there is a bar line (ie. when @code{whichBar} is set. "
+ "It is \n"
+ "put on top of all staves, and appears only at left side of the staff. "
+ "The staves are taken from @code{stavesFound}, which is maintained by "
+ "@code{@ref{Staff_collecting_engraver}}. ",
+
+ /* create */ "BarNumber",
+ /* read */
+ "currentBarNumber "
+ "whichBar "
+ "stavesFound "
+ "barNumberVisibility ",
+ /* write */ "");
projects / lilypond.git / blobdiff