{
if (Paper_column::is_musical (left_col))
{
- bool skip_unbroken_right = false;
-
if (!Paper_column::is_musical (right_col)
&& options->float_nonmusical_columns_
&& after_right_col
&& Paper_column::is_musical (after_right_col))
- skip_unbroken_right = true;
-
- if (skip_unbroken_right)
{
/*
TODO: should generate rods to prevent collisions.
}
/*
- Generate the space between two musical columns LEFT_COL and RIGHT_COL, given
- spacing parameters INCR and SHORTEST.
+ Generate the space between two musical columns LEFT_COL and RIGHT_COL.
*/
void
Spacing_spanner::musical_column_spacing (Grob *me,
Item *right_col,
Spacing_options const *options)
{
- bool expand_only = false;
- Real base_note_space = note_spacing (me, left_col, right_col, options, &expand_only);
-
- Real max_fixed = 0;
- Real max_space = 0;
- Real compound_note_space = 0.0;
- Real compound_fixed_note_space = 0.0;
+ Real base_note_space = note_spacing (me, left_col, right_col, options);
+ Spring spring;
if (options->stretch_uniformly_)
- {
- compound_note_space = base_note_space;
-
- if (!Paper_column::is_musical (right_col))
- {
- /*
- Crude fix for notes that lead up to barlines and time sigs.
- */
- Interval lext = right_col->extent (right_col, X_AXIS);
- if (!lext.is_empty ())
- compound_note_space += -lext[LEFT];
- }
- }
+ spring = Spring (base_note_space, 0.0);
else
{
- int wish_count = 0;
-
+ vector<Spring> springs;
extract_grob_set (left_col, "right-neighbors", neighbors);
- /*
- We adjust the space following a note only if the next note
- happens after the current note (this is set in the grob
- property SPACING-SEQUENCE.
- */
for (vsize i = 0; i < neighbors.size (); i++)
{
Grob *wish = neighbors[i];
- Item *wish_rcol = Note_spacing::right_column (wish);
- if (Note_spacing::left_column (wish) != left_col
+ Item *wish_rcol = Spacing_interface::right_column (wish);
+ if (Spacing_interface::left_column (wish) != left_col
|| (wish_rcol != right_col && wish_rcol != right_col->original ()))
continue;
This is probably a waste of time in the case of polyphonic
music. */
if (Note_spacing::has_interface (wish))
- {
- Real space = 0.0;
- Real fixed = 0.0;
-
- Note_spacing::get_spacing (wish, right_col, base_note_space, options->increment_, &space, &fixed);
-
-
- max_space = max (max_space, space);
- max_fixed = max (max_fixed, fixed);
-
- compound_note_space += space;
- compound_fixed_note_space += fixed;
- wish_count++;
- }
- }
-
- if (Paper_column::when_mom (right_col).grace_part_
- && !Paper_column::when_mom (left_col).grace_part_)
- {
- /*
- Ugh. 0.8 is arbitrary.
- */
- compound_note_space *= 0.8;
+ springs.push_back (Note_spacing::get_spacing (wish, right_col, base_note_space, options->increment_));
}
- if (compound_note_space < 0 || wish_count == 0)
+ if (springs.empty ())
{
if (!Paper_column::is_musical (right_col))
spacing, because the width of s^"text" output is also
taken into account here.
*/
- compound_fixed_note_space = options->increment_;
- compound_note_space = max (base_note_space,
- options->increment_);
+ spring = Spring (max (base_note_space, options->increment_),
+ options->increment_);
}
else
{
Fixed should be 0.0. If there are no spacing wishes, we're
likely dealing with polyphonic spacing of hemiolas.
- We used to have compound_fixed_note_space = options->increment_
+ We used to have min_distance_ = options->increment_
but this can lead to numeric instability problems when we
do
- inverse_strength = (compound_note_space - compound_fixed_note_space)
+ inverse_strength = (distance_ - min_distance_)
*/
-
- compound_note_space = base_note_space;
- compound_fixed_note_space = 0.0;
+ spring = Spring (base_note_space, 0.0);
}
}
- else if (to_boolean (me->get_property ("average-spacing-wishes")))
- {
- compound_note_space /= wish_count;
- compound_fixed_note_space /= wish_count;
- }
else
- {
- compound_fixed_note_space = max_fixed;
- compound_note_space = max_space;
- }
+ spring = merge_springs (springs);
+ }
+ if (Paper_column::when_mom (right_col).grace_part_
+ && !Paper_column::when_mom (left_col).grace_part_)
+ {
/*
- Whatever we do, the fixed space is smaller than the real
- space.
-
- TODO: this criterion is discontinuous in the derivative.
- Maybe it should be continuous?
+ Ugh. 0.8 is arbitrary.
*/
- compound_fixed_note_space = min (compound_fixed_note_space,
- compound_note_space);
+ spring *= 0.8;
}
- Real inverse_strength = 1.0;
- Real distance = 1.0;
-
/*
TODO: make sure that the space doesn't exceed the right margin.
*/
pack as much bars of music as possible into a line, but the
line will then be stretched to fill the whole linewidth.
*/
- inverse_strength = 1.0;
- distance = compound_fixed_note_space;
- }
- else
- {
- inverse_strength = (compound_note_space - compound_fixed_note_space);
- distance = compound_note_space;
+ spring.set_distance (spring.min_distance ());
+ spring.set_inverse_stretch_strength (1.0);
}
- Spaceable_grob::add_spring (left_col, right_col, distance, inverse_strength);
+ Spaceable_grob::add_spring (left_col, right_col, spring);
}
/*
Spacing_spanner::breakable_column_spacing (Grob *me, Item *l, Item *r,
Spacing_options const *options)
{
- Real compound_fixed = 0.0;
- Real compound_space = 0.0;
- Real max_fixed = 0.0;
- Real max_space = 0.0;
-
- int wish_count = 0;
+ vector<Spring> springs;
+ Spring spring;
Moment dt = Paper_column::when_mom (r) - Paper_column::when_mom (l);
if (!spacing_grob || !Staff_spacing::has_interface (spacing_grob))
continue;
- Real space = 0.;
- Real fixed_space = 0.;
-
/*
column for the left one settings should be ok due automatic
pointer munging.
*/
assert (spacing_grob->get_column () == l);
- Staff_spacing::get_spacing_params (spacing_grob,
- &space, &fixed_space);
-
- if (Paper_column::when_mom (r).grace_part_)
- {
- /*
- Correct for grace notes.
-
- Ugh. The 0.8 is arbitrary.
- */
- space *= 0.8;
- }
-
- max_space = max (max_space, space);
- max_fixed = max (max_fixed, fixed_space);
-
- compound_space += space;
- compound_fixed += fixed_space;
- wish_count++;
+ springs.push_back (Staff_spacing::get_spacing (spacing_grob));
}
}
- if (compound_space <= 0.0 || !wish_count)
- {
- standard_breakable_column_spacing (me, l, r, &compound_fixed, &compound_space,
- options);
- wish_count = 1;
- }
+ if (springs.empty ())
+ spring = standard_breakable_column_spacing (me, l, r, options);
else
+ spring = merge_springs (springs);
+
+ if (Paper_column::when_mom (r).grace_part_)
{
- if (to_boolean (me->get_property ("average-spacing-wishes")))
- {
- compound_space /= wish_count;
- compound_fixed /= wish_count;
- }
- else
- {
- compound_fixed = max_fixed;
- compound_space = max_space;
- }
-
+ /*
+ Correct for grace notes.
+
+ Ugh. The 0.8 is arbitrary.
+ */
+ spring *= 0.8;
}
if (Paper_column::is_musical (r)
&& l->break_status_dir () == CENTER
&& fills_measure (me, l, r))
{
- compound_space += 1.0;
+ spring.set_distance (spring.distance () + 1.0);
+ spring.set_default_strength ();
}
if (options->stretch_uniformly_ && l->break_status_dir () != RIGHT)
- compound_fixed = 0.0;
-
- assert (!isinf (compound_space));
- compound_space = max (compound_space, compound_fixed);
+ {
+ spring.set_min_distance (0.0);
+ spring.set_default_strength ();
+ }
- Real inverse_strength = (compound_space - compound_fixed);
- Real distance = compound_space;
- Spaceable_grob::add_spring (l, r, distance, inverse_strength);
+ Spaceable_grob::add_spring (l, r, spring);
}
ADD_INTERFACE (Spacing_spanner,
projects / lilypond.git / blobdiff