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/*
clef-item.cc -- implement Clef_item
source file of the GNU LilyPond music typesetter
(c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "clef-item.hh"
#include "string.hh"
#include "molecule.hh"
#include "item.hh"
/**
Set a clef in a staff.
properties:
non-default -- not set because of existence of a bar?
change -- is this a change clef (smaller size)?
glyph -- a string determining what glyph is typeset
*/
struct Clef
{
static SCM before_line_breaking (SCM);
};
/*
FIXME: should use symbol.
*/
MAKE_SCHEME_SCORE_ELEMENT_CALLBACK(Clef,before_line_breaking);
SCM
Clef::before_line_breaking (SCM smob)
{
Item * s = dynamic_cast<Item*> (unsmob_element (smob));
SCM style_sym =s->get_elt_property ("style");
String style;
if (gh_string_p (style_sym))
style = ly_scm2string (style_sym);
SCM glyph = s->get_elt_property ("glyph");
if (gh_string_p (glyph))
{
String str = ly_scm2string (glyph);
/*
FIXME: should use fontsize property to set clef changes.
*/
if (s->get_elt_property ("non-default") &&
s->break_status_dir() != RIGHT && style != "fullSizeChanges")
{
str += "_change";
s->set_elt_property ("glyph", ly_str02scm (str.ch_C()));
}
}
else
{
s->suicide ();
return SCM_UNDEFINED;
}
return SCM_UNDEFINED;
}
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