/*
This file is part of LilyPond, the GNU music typesetter.
- Copyright (C) 1999--2010 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ Copyright (C) 1999--2012 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
Real
Staff_symbol_referencer::get_position (Grob *me)
+{
+ return internal_get_position (me, false);
+}
+
+Real
+Staff_symbol_referencer::pure_get_position (Grob *me)
+{
+ return internal_get_position (me, true);
+}
+
+Real
+Staff_symbol_referencer::internal_get_position (Grob *me, bool pure)
{
Real p = 0.0;
Grob *st = get_staff_symbol (me);
Grob *c = st ? me->common_refpoint (st, Y_AXIS) : 0;
if (st && c)
{
- Real y = me->relative_coordinate (c, Y_AXIS)
- - st->relative_coordinate (c, Y_AXIS);
+ Real y = (pure
+ ? me->pure_relative_y_coordinate (c, 0, INT_MAX)
+ : me->relative_coordinate (c, Y_AXIS))
+ - st->relative_coordinate (c, Y_AXIS);
Real space = Staff_symbol::staff_space (st);
p = (space == 0) ? 0 : 2.0 * y / space;
return p;
return robust_scm2double (me->get_property ("staff-position"), p);
}
-
Interval
Staff_symbol_referencer::extent_in_staff (Grob *me)
{
Interval retval;
if (st && c)
{
- retval = me->extent (c, Y_AXIS)
- - st->relative_coordinate (c, Y_AXIS);
+ retval = me->extent (c, Y_AXIS)
+ - st->relative_coordinate (c, Y_AXIS);
}
return retval;
return int (rint (get_position (me)));
}
+int
+Staff_symbol_referencer::pure_get_rounded_position (Grob *me)
+{
+ return int (rint (pure_get_position (me)));
+}
+
MAKE_SCHEME_CALLBACK (Staff_symbol_referencer, callback, 1);
SCM
Staff_symbol_referencer::callback (SCM smob)
void
Staff_symbol_referencer::set_position (Grob *me, Real p)
+{
+ internal_set_position (me, p, false);
+}
+
+void
+Staff_symbol_referencer::pure_set_position (Grob *me, Real p)
+{
+ internal_set_position (me, p, true);
+}
+
+void
+Staff_symbol_referencer::internal_set_position (Grob *me, Real p, bool pure)
{
Grob *st = get_staff_symbol (me);
Real oldpos = 0.0;
if (st && me->common_refpoint (st, Y_AXIS))
{
- oldpos = get_position (me);
+ oldpos = pure ? pure_get_position (me) : get_position (me);
}
Real ss = Staff_symbol_referencer::staff_space (me);
- me->translate_axis ((p - oldpos) * ss * 0.5, Y_AXIS);
+ me->translate_axis ((p - oldpos) * ss * 0.5, Y_AXIS);
}
/* Half of the height, in staff space, i.e. 2.0 for a normal staff. */
compare_position (Grob *const &a, Grob *const &b)
{
return sign (Staff_symbol_referencer::get_position ((Grob *)a)
- - Staff_symbol_referencer::get_position ((Grob *) b));
+ - Staff_symbol_referencer::get_position ((Grob *) b));
}
bool
position_less (Grob *const &a, Grob *const &b)
{
return Staff_symbol_referencer::get_position (a)
- < Staff_symbol_referencer::get_position (b);
+ < Staff_symbol_referencer::get_position (b);
+}
+
+bool
+pure_position_less (Grob *const &a, Grob *const &b)
+{
+ return Staff_symbol_referencer::pure_get_position (a)
+ < Staff_symbol_referencer::pure_get_position (b);
}
ADD_INTERFACE (Staff_symbol_referencer,
- "An object whose Y@tie{}position is meant relative to a staff"
- " symbol. These usually"
- " have @code{Staff_symbol_referencer::callback} in their"
- " @code{Y-offset-callbacks}.",
-
- /* properties */
- "staff-position "
- );
+ "An object whose Y@tie{}position is meant relative to a staff"
+ " symbol. These usually"
+ " have @code{Staff_symbol_referencer::callback} in their"
+ " @code{Y-offset-callbacks}.",
+
+ /* properties */
+ "staff-position "
+ );