#include "stem.hh"
#include "separation-item.hh"
#include "staff-spacing.hh"
+#include "accidental-placement.hh"
-bool
-Note_spacing::has_interface (Grob* g)
+void
+Note_spacing::get_spacing (Grob *me, Item* right_col,
+ Real base_space, Real increment, Real *space, Real *fixed)
{
- return g && g->has_interface (ly_symbol2scm ("note-spacing-interface"));
-}
-Real
-Note_spacing::get_spacing (Grob *me)
-{
Drul_array<SCM> props(me->get_grob_property ("left-items"),
me->get_grob_property ("right-items"));
Direction d = LEFT;
+ Direction col_dir = right_col->break_status_dir ();
Drul_array<Interval> extents;
+
+ Interval left_head_wid;
do
{
for (SCM s = props[d]; gh_pair_p (s); s = gh_cdr (s))
{
Item * it= dynamic_cast<Item*> (unsmob_grob (gh_car(s)));
- extents[d].unite (it->extent (it->column_l (), X_AXIS));
+
+ if (d == RIGHT && it->break_status_dir () != col_dir)
+ {
+ it = it -> find_prebroken_piece (col_dir);
+
+ }
+ /*
+ some kind of mismatch, eg. a note column, that is behind a
+ linebreak.
+ */
+ if (!it)
+ continue;
+
+ Item *it_col = it->column_l ();
+ if (d == RIGHT && right_col != it_col)
+ continue;
+
+ if (Separation_item::has_interface (it))
+ {
+ extents[d].unite (Separation_item::width (it));
+ continue;
+ }
+ if (d == LEFT)
+ {
+ SCM r = it->get_grob_property ("rest");
+ Grob * g = unsmob_grob (r);
+ if (!g)
+ g = Note_column::first_head (it);
+
+ if (g)
+ left_head_wid = g->extent(it_col, X_AXIS);
+ }
+
+ extents[d].unite (it->extent (it_col, X_AXIS));
if (d == RIGHT)
{
Grob * accs = Note_column::accidentals (it);
accs = Note_column::accidentals (it->get_parent (X_AXIS));
if (accs)
- extents[d].unite (accs->extent (it->column_l (), X_AXIS));
+ {
+ Interval v =
+ Accidental_placement::get_relevant_accidental_extent (accs, it_col, me);
+
+ extents[d].unite (v);
+ }
}
}
}
while (flip (&d) != LEFT);
+
/*
-
- What's sticking out at the left of the right side has less
- influence.
+ We look at the width of the note head, since smaller heads get less space
+ eg. a quarter rest gets almost 0.5 ss less horizontal space than a note.
+ What is sticking out of the note head (eg. a flag), doesn't get
+ the full amount of space.
*/
- Real dx= extents[LEFT][RIGHT] - 0.5 * extents[RIGHT][LEFT];
- return dx;
+ *fixed = left_head_wid.empty_b () ? increment : left_head_wid[RIGHT];
+ *space = (base_space - increment) + *fixed +
+ (extents[LEFT][RIGHT] - left_head_wid[RIGHT])/ 2;
+ ;
+
+ if (*space - *fixed < 2 * ((- extents[RIGHT][LEFT]) >? 0))
+ {
+ /*
+
+ What's sticking out at the left of the right side has less
+ influence. We only take it into account if there is not enough
+ space.
+
+ this sucks: this criterion is discontinuous; FIXME.
+ */
+ *space += 0.5 * (( -extents[RIGHT][LEFT]) >? 0);
+ }
+
+ stem_dir_correction (me, right_col, increment, space, fixed);
}
Item *
Note_spacing::left_column (Grob *me)
{
- if (me->immutable_property_alist_ == SCM_EOL)
+ if (!me->live())
return 0;
return dynamic_cast<Item*> (me)->column_l ();
Item *
Note_spacing::right_column (Grob*me)
{
- /*
- ugh. should have generic is_live() method?
- */
- if (me->immutable_property_alist_ == SCM_EOL)
+ if (!me->live())
return 0;
SCM right = me->get_grob_property ("right-items");
TODO: have to check wether the stems are in the same staff.
- TODO: also correct for bar lines in RIGHT-ITEMS. Should check if
- the barline is the leftmost object of the break alignment.
-
*/
-Real
-Note_spacing::stem_dir_correction (Grob*me)
+void
+Note_spacing::stem_dir_correction (Grob*me, Item * rcolumn,
+ Real increment,
+ Real * space, Real *fixed)
{
Drul_array<Direction> stem_dirs(CENTER,CENTER);
Drul_array<Interval> stem_posns;
Drul_array<SCM> props(me->get_grob_property ("left-items"),
me->get_grob_property ("right-items"));
+ Drul_array<Grob*> beams_drul(0,0);
Real correction = 0.0;
stem_dirs[LEFT] = stem_dirs[RIGHT] = CENTER;
{
if (d == RIGHT && Separation_item::has_interface (it))
{
+ if (it->column_l () != rcolumn)
+ {
+ it = it->find_prebroken_piece (rcolumn->break_status_dir ());
+ }
+
Grob *last = Staff_spacing::extremal_break_aligned_grob (it, LEFT, &bar_xextent);
if (last)
break;
}
- goto exit_func;
+ return ;
}
+
if(Stem::invisible_b (stem))
{
- correct = false;
- goto exit_func ;
+ return ;
}
+ beams_drul[d] = Stem::beam_l (stem);
+
+
Direction sd = Stem::get_direction (stem);
if (stem_dirs[d] && stem_dirs[d] != sd)
{
- correct = false;
- goto exit_func;
+ return ;
}
stem_dirs[d] = sd;
+ /*
+ Correction doesn't seem appropriate when there is a large flag
+ hanging from the note.
+ */
+ if (d == LEFT
+ && Stem::duration_log (stem) > 2 && !Stem::beam_l (stem))
+ {
+
+ return;
+ }
+
+
+
Interval hp = Stem::head_positions (stem);
Real chord_start = hp[sd];
Real stem_end = Stem::stem_end_position (stem);
*/
if (acc_right)
- return 0.0;
+ return ;
if (!bar_yextent.empty_b())
{
if (correct &&stem_dirs[LEFT] *stem_dirs[RIGHT] == -1)
{
-
- intersect = stem_posns[LEFT];
- intersect.intersect(stem_posns[RIGHT]);
- correct = correct && !intersect.empty_b ();
+ if (beams_drul[LEFT] && beams_drul[LEFT] == beams_drul[RIGHT])
+ {
+ /*
+ this is a knee: maximal correction.
+ */
+
+ correction = increment* stem_dirs[LEFT];
+ *fixed += increment* stem_dirs[LEFT];
+ }
+ else
+ {
+ intersect = stem_posns[LEFT];
+ intersect.intersect(stem_posns[RIGHT]);
+ correct = correct && !intersect.empty_b ();
- if (!correct)
- return 0.0;
- /*
- Ugh. 7 is hardcoded.
- */
- correction = abs (intersect.length ());
- correction = (correction/7) <? 1.0;
- correction *= stem_dirs[LEFT] ;
- correction *= gh_scm2double (me->get_grob_property ("stem-spacing-correction"));
+ if (!correct)
+ return;
+
+ correction = abs (intersect.length ());
- if (!bar_yextent.empty_b())
- {
- correction *= 0.5;
+
+ /*
+ Ugh. 7 is hardcoded.
+ */
+ correction = (correction/7) <? 1.0;
+ correction *= stem_dirs[LEFT] ;
+ correction *= gh_scm2double (me->get_grob_property ("stem-spacing-correction"));
+
+ if (!bar_yextent.empty_b())
+ {
+ correction *= 0.5;
+ }
}
}
- else if (correct)
+ else if (correct && stem_dirs[LEFT] *stem_dirs[RIGHT] == UP)
{
/*
Correct for the following situation:
Interval hp = head_posns[LEFT];
hp.intersect (head_posns[RIGHT]);
if (!hp.empty_b())
- return 0.0;
+ return ;
Direction lowest =
(head_posns[LEFT][DOWN] > head_posns[RIGHT][UP]) ? RIGHT : LEFT;
if (!bar_xextent.empty_b())
correction += - bar_xextent[LEFT];
-
- exit_func:
- return correction;
+
+ *space += correction;
}
+
+
+
+ADD_INTERFACE (Note_spacing,"note-spacing-interface",
+ "",
+ "left-items right-items stem-spacing-correction");
+
projects / lilypond.git / blobdiff