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/*
slur.cc -- implement external interface for Slur
source file of the GNU LilyPond music typesetter
(c) 1996--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include <math.h>
#include "new-slur.hh"
#include "main.hh"
#include "font-interface.hh"
#include "text-item.hh"
#include "directional-element-interface.hh"
#include "group-interface.hh"
#include "lily-guile.hh"
#include "lookup.hh"
#include "note-column.hh"
#include "output-def.hh"
#include "rod.hh"
#include "slur-bezier-bow.hh"
#include "slur.hh"
#include "spanner.hh"
#include "staff-symbol-referencer.hh"
#include "staff-symbol.hh"
#include "stem.hh"
#include "stencil.hh"
#include "warn.hh"
#include "beam.hh"
MAKE_SCHEME_CALLBACK (New_slur, height, 2);
SCM
New_slur::height (SCM smob, SCM ax)
{
Axis a = (Axis)ly_scm2int (ax);
Grob *me = unsmob_grob (smob);
assert (a == Y_AXIS);
SCM mol = me->get_uncached_stencil ();
Interval ext;
if (Stencil *m = unsmob_stencil (mol))
ext = m->extent (a);
return ly_interval2scm (ext);
}
/*
Ugh should have dash-length + dash-period
*/
MAKE_SCHEME_CALLBACK (New_slur, print,1);
SCM
New_slur::print (SCM smob)
{
Grob *me = unsmob_grob (smob);
if (!scm_ilength (me->get_property ("note-columns")))
{
me->suicide ();
return SCM_EOL;
}
Real base_thick = robust_scm2double (me->get_property ("thickness"), 1);
Real thick = base_thick * Staff_symbol_referencer::line_thickness (me);
Real ss = Staff_symbol_referencer::staff_space (me);
Bezier one = get_curve (me);
Stencil a;
/*
TODO: replace dashed with generic property.
*/
SCM d = me->get_property ("dashed");
if (ly_c_number_p (d))
a = Lookup::dashed_slur (one, thick, thick * robust_scm2double (d, 0));
else
a = Lookup::slur (one, get_grob_direction (me) * base_thick * ss / 10.0,
thick);
#if DEBUG_SLUR_QUANTING
SCM quant_score = me->get_property ("quant-score");
if (to_boolean (me->get_paper ()
->lookup_variable (ly_symbol2scm ("debug-slur-quanting")))
&& ly_c_string_p (quant_score))
{
String str;
SCM properties = Font_interface::text_font_alist_chain (me);
Stencil tm = *unsmob_stencil (Text_item::interpret_markup
(me->get_paper ()->self_scm (), properties,
quant_score));
a.add_at_edge (Y_AXIS, get_grob_direction (me), tm, 1.0, 0);
}
#endif
return a.smobbed_copy ();
}
Bezier
New_slur::get_curve (Grob*me)
{
Bezier b;
int i = 0;
for (SCM s = me->get_property ("control-points"); s != SCM_EOL;
s = ly_cdr (s))
b.control_[i++] = ly_scm2offset (ly_car (s));
return b;
}
void
New_slur::set_interface (Grob*me)
{
/* Copy to mutable list. */
me->set_property ("attachment",
ly_deep_copy (me->get_property ("attachment")));
}
void
New_slur::add_column (Grob*me, Grob*n)
{
Pointer_group_interface::add_grob (me, ly_symbol2scm ("note-columns"), n);
add_bound_item (dynamic_cast<Spanner*> (me), dynamic_cast<Item*> (n));
}
void
New_slur::add_extra_encompass (Grob*me, Grob*n)
{
Pointer_group_interface::add_grob (me, ly_symbol2scm ("encompass-objects"), n);
}
ADD_INTERFACE (New_slur, "new-slur-interface",
"A slur",
"encompass-objects control-points dashed details direction height-limit note-columns ratio thickness");
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