source file of the GNU LilyPond music typesetter
- (c) 2001--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ (c) 2001--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "note-spacing.hh"
#include "output-def.hh"
#include "pointer-group-interface.hh"
+static bool
+non_empty_barline (Grob *me)
+{
+ return Bar_line::has_interface (me) && !me->extent (me, X_AXIS).is_empty ();
+}
+
/*
TODO: detect hshifts due to collisions, and account for them in
spacing?
{
Grob *bar = Pointer_group_interface::find_grob (right_col,
ly_symbol2scm ("elements"),
- Bar_line::has_interface);
+ non_empty_barline);
if (bar)
{
ideal = max (ideal, min_desired_space);
stem_dir_correction (me, right_col, increment, &ideal, &min_desired_space);
+ /* TODO: grace notes look bad when things are stretched. Should we increase
+ their stretch strength? */
Spring ret (max (0.0, ideal), min_dist);
ret.set_inverse_compress_strength (max (0.0, ideal - min_desired_space));
ret.set_inverse_stretch_strength (max (0.1, base_space - increment));
}
-/**
+/*
Correct for optical illusions. See [Wanske] p. 138. The combination
up-stem + down-stem should get extra space, the combination
down-stem + up-stem less.
Direction d = LEFT;
+ bool acc_right = false;
+
Grob *bar = Spacing_interface::extremal_break_aligned_grob (me, RIGHT,
rcolumn->break_status_dir (),
&bar_xextent);
continue;
/*
- don't correct if accidentals are sticking out of the right side.
+ Find accidentals which are sticking out of the right side.
*/
- if (d == RIGHT && Note_column::accidentals (it))
- return;
+ if (d == RIGHT)
+ acc_right = acc_right || Note_column::accidentals (it);
Grob *stem = Note_column::get_stem (it);
correction *= 0.5;
}
}
- else if (stem_dirs[LEFT] * stem_dirs[RIGHT] == 1)
+ /*
+ Only apply same direction correction if there are no
+ accidentals sticking out of the right hand side.
+ */
+ else if (stem_dirs[LEFT] * stem_dirs[RIGHT] == 1
+ && !acc_right)
correction = same_direction_correction (me, head_posns);
*space += correction;
ADD_INTERFACE (Note_spacing,
"This object calculates spacing wishes for individual voices.",
-
+ /* properties */
"knee-spacing-correction "
"left-items "
"right-items "
"same-direction-correction "
"stem-spacing-correction "
"space-to-barline "
-
);