/*
- melody-spanner.cc -- implement Melody_spanner
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 2005--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 2005--2007 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 "melody-spanner.hh"
let's take item for now.
*/
-
/*
Interpolate stem directions for neutral stems.
*/
SCM
Melody_spanner::calc_neutral_stem_direction (SCM smob)
{
- Grob *stem = unsmob_grob (smob);
- Grob *me = unsmob_grob (stem->get_object ("melody-spanner"));
+ Grob *stem = unsmob<Grob> (smob);
+ Grob *me = unsmob<Grob> (stem->get_object ("melody-spanner"));
if (!me || !me->is_live ())
return scm_from_int (DOWN);
-
+
extract_grob_set (me, "stems", stems);
vector<Direction> dirs;
vsize last_nonneutral = VPOS;
vsize next_nonneutral = 0;
while (next_nonneutral != VPOS && next_nonneutral < dirs.size ()
- && !dirs[next_nonneutral])
+ && !dirs[next_nonneutral])
next_nonneutral++;
SCM retval = SCM_EOL;
- while (last_nonneutral == VPOS || last_nonneutral + 1 < dirs.size ())
+ while (last_nonneutral == VPOS || last_nonneutral + 1 < dirs.size ())
{
Direction d1 = CENTER;
Direction d2 = CENTER;
if (last_nonneutral != VPOS)
- d1 = dirs[last_nonneutral];
+ d1 = dirs[last_nonneutral];
if (next_nonneutral < dirs.size ())
- d2 = dirs[next_nonneutral];
+ d2 = dirs[next_nonneutral];
Direction total = CENTER;
if (d1 && d1 == d2)
- total = d1;
+ total = d1;
else if (d1 && !d2)
- total = d1;
+ total = d1;
else if (d2 && !d1)
- total = d2;
+ total = d2;
else
- total = to_dir (me->get_property ("neutral-direction"));
-
- for (vsize i = last_nonneutral + 1; i < next_nonneutral; i++)
- {
- if (stems[i] == stem)
- retval = scm_from_int (total);
- else
- stems[i]->set_property ("neutral-direction", scm_from_int (total));
- }
+ total = to_dir (me->get_property ("neutral-direction"));
+
+ for (vsize i = last_nonneutral + 1; i < next_nonneutral; i++)
+ {
+ if (stems[i] == stem)
+ retval = scm_from_int (total);
+ else
+ stems[i]->set_property ("neutral-direction", scm_from_int (total));
+ }
last_nonneutral = next_nonneutral;
while (last_nonneutral < dirs.size ()
- && dirs[last_nonneutral])
- last_nonneutral++;
+ && dirs[last_nonneutral])
+ last_nonneutral++;
next_nonneutral = last_nonneutral;
last_nonneutral--;
while (next_nonneutral < dirs.size ()
- && !dirs[next_nonneutral])
- next_nonneutral++;
+ && !dirs[next_nonneutral])
+ next_nonneutral++;
}
return retval;
}
ADD_INTERFACE (Melody_spanner,
- "Context dependent typesetting decisions.",
+ "Context dependent typesetting decisions.",
- /* properties */
- "stems "
- "neutral-direction "
- );
+ /* properties */
+ "stems "
+ "neutral-direction "
+ );
-