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/*
This file is part of LilyPond, the GNU music typesetter.
Copyright (C) 1999--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
LilyPond is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
LilyPond is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
#include "script-interface.hh"
#include "directional-element-interface.hh"
#include "item.hh"
#include "warn.hh"
#include "font-interface.hh"
#include "side-position-interface.hh"
#include "output-def.hh"
#include "lookup.hh"
#include "stem.hh"
#include "note-column.hh"
Stencil
Script_interface::get_stencil (Grob *me, Direction d)
{
SCM s = me->get_property ("script-stencil");
assert (scm_is_pair (s));
SCM key = scm_car (s);
if (scm_is_eq (key, ly_symbol2scm ("feta")))
{
SCM name_entry = scm_cdr (s);
SCM str = ((scm_is_pair (name_entry)) ? index_get_cell (name_entry, d)
: name_entry);
return Font_interface::get_default_font (me)
->find_by_name ("scripts." + ly_scm2string (str));
}
else
assert (false);
return Stencil ();
}
MAKE_SCHEME_CALLBACK (Script_interface, calc_positioning_done, 1);
SCM
Script_interface::calc_positioning_done (SCM smob)
{
Grob *me = unsmob<Grob> (smob);
if (Grob *par = me->get_parent (X_AXIS))
{
Grob *stem = Note_column::get_stem (par);
if (stem && Stem::first_head (stem))
me->set_parent (Stem::first_head (stem), X_AXIS);
}
return SCM_BOOL_T;
}
Direction
Script_interface::get_direction (Grob *me)
{
Direction relative_dir = Direction (1);
SCM reldir = me->get_property ("side-relative-direction");
if (is_direction (reldir))
relative_dir = to_dir (reldir);
SCM other_elt = me->get_object ("direction-source");
Grob *e = unsmob<Grob> (other_elt);
if (e)
return (Direction) (relative_dir * get_grob_direction (e));
return CENTER;
}
MAKE_SCHEME_CALLBACK (Script_interface, calc_direction, 1);
SCM
Script_interface::calc_direction (SCM smob)
{
Grob *me = unsmob<Grob> (smob);
Direction d = Script_interface::get_direction (me);
if (!d)
{
me->programming_error ("script direction not yet known");
d = DOWN;
}
(void) me->get_property ("positioning-done");
return scm_from_int (d);
}
MAKE_SCHEME_CALLBACK (Script_interface, calc_cross_staff, 1);
SCM
Script_interface::calc_cross_staff (SCM smob)
{
Grob *me = unsmob<Grob> (smob);
Grob *stem = Note_column::get_stem (me->get_parent (X_AXIS));
if (stem && to_boolean (stem->get_property ("cross-staff")))
return SCM_BOOL_T;
Grob *slur = unsmob<Grob> (me->get_object ("slur"));
SCM avoid_slur = me->get_property ("avoid-slur");
if (slur && to_boolean (slur->get_property ("cross-staff"))
&& (scm_is_eq (avoid_slur, ly_symbol2scm ("outside"))
|| scm_is_eq (avoid_slur, ly_symbol2scm ("around"))))
return SCM_BOOL_T;
return SCM_BOOL_F;
}
MAKE_SCHEME_CALLBACK (Script_interface, print, 1);
SCM
Script_interface::print (SCM smob)
{
Grob *me = unsmob<Grob> (smob);
Direction dir = get_grob_direction (me);
return get_stencil (me, dir).smobbed_copy ();
}
struct Text_script
{
};
ADD_INTERFACE (Text_script,
"An object that is put above or below a note.",
/* properties */
"avoid-slur "
"script-priority "
"slur "
);
/*
Hmm. Where should we put add-stem-support ?
*/
ADD_INTERFACE (Script_interface,
"An object that is put above or below a note.",
/* properties */
"avoid-slur "
"direction-source "
"positioning-done "
"script-column "
"script-priority "
"script-stencil "
"side-relative-direction "
"slur "
"slur-padding "
"toward-stem-shift "
"toward-stem-shift-in-column "
);
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