/*
- staff-symbol.cc -- implement Staff_symbol
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1997--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 1997--2006 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 "staff-symbol.hh"
Interval span_points (0, 0);
/*
- For raggedright without ragged staffs, simply set width to the linewidth.
+ For raggedright without ragged staves, simply set width to the linewidth.
(ok -- lousy UI, since width is in staff spaces)
--hwn.
*/
- Real t = me->layout ()->get_dimension (ly_symbol2scm ("linethickness"));
+ Real t = me->layout ()->get_dimension (ly_symbol2scm ("line-thickness"));
t *= robust_scm2double (me->get_property ("thickness"), 1.0);
Direction d = LEFT;
Real
Staff_symbol::get_line_thickness (Grob *me)
{
- Real lt = me->layout ()->get_dimension (ly_symbol2scm ("linethickness"));
+ Real lt = me->layout ()->get_dimension (ly_symbol2scm ("line-thickness"));
return robust_scm2double (me->get_property ("thickness"), 1.0) * lt;
}
return z[X_AXIS] * get_line_thickness (me) + z[Y_AXIS] * staff_space (me);
}
-MAKE_SCHEME_CALLBACK(Staff_symbol,height,1);
+MAKE_SCHEME_CALLBACK (Staff_symbol, height,1);
SCM
Staff_symbol::height (SCM smob)
{
Grob *me = unsmob_grob (smob);
- Real t = me->layout ()->get_dimension (ly_symbol2scm ("linethickness"));
+ Real t = me->layout ()->get_dimension (ly_symbol2scm ("line-thickness"));
t *= robust_scm2double (me->get_property ("thickness"), 1.0);
SCM line_positions = me->get_property ("line-positions");
return ly_interval2scm (y_ext);
}
+bool
+Staff_symbol::on_line (Grob *me, int pos)
+{
+ SCM line_positions = me->get_property ("line-positions");
+ if (scm_is_pair (line_positions))
+ {
+ Real min_line = HUGE_VAL;
+ Real max_line = -HUGE_VAL;
+ for (SCM s = line_positions; scm_is_pair (s); s = scm_cdr (s))
+ {
+ Real current_line = scm_to_double (scm_car (s));
+ if (pos == current_line)
+ return true;
+ if (current_line > max_line)
+ max_line = current_line;
+ if (current_line < min_line)
+ min_line = current_line;
+
+ }
+ if (pos < min_line)
+ return (( (int) (rint (pos - min_line)) % 2) == 0);
+ if (pos > max_line)
+ return (( (int) (rint (pos - max_line)) % 2) == 0);
+ return false;
+ }
+ else
+ return ((abs (pos + line_count (me)) % 2) == 1);
+}
-
-ADD_INTERFACE (Staff_symbol, "staff-symbol-interface",
- "This spanner draws the lines of a staff. "
- "A staff symbol definines a vertical unit, the staff space. "
- "Quantities that go by a half staff space are called positions "
- "The center (i.e. middle line "
- "or space) is position 0. The length of the symbol may be set by hand "
- "through the @code{width} property. ",
-
+ADD_INTERFACE (Staff_symbol,
+ "This spanner draws the lines of a staff. A staff symbol"
+ " defines a vertical unit, the @emph{staff space}. Quantities"
+ " that go by a half staff space are called @emph{positions}."
+ " The center (i.e., middle line or space) is position@tie{}0."
+ " The length of the symbol may be set by hand through the"
+ " @code{width} property.",
/* properties */
"ledger-line-thickness "