Grob *head_up = Note_column::first_head (clash_up);
Grob *head_down = Note_column::first_head (clash_down);
- vector<int> ups = Stem::note_head_positions (Note_column::get_stem (clash_up));
- vector<int> dps = Stem::note_head_positions (Note_column::get_stem (clash_down));
+ /* Staff-positions of all noteheads on each stem */
+ vector<int> ups = Stem::note_head_positions (stems[UP]);
+ vector<int> dps = Stem::note_head_positions (stems[DOWN]);
/* Too far apart to collide. */
if (ups[0] > dps.back () + 1)
return;
+ /* If the chords just 'touch' their extreme noteheads,
+ then we can align their stems.
+ */
+ bool touch = false;
+ if (ups[0] >= dps.back ()
+ && (dps.size () < 2 || ups[0] >= dps[dps.size () - 2] + 2)
+ && (ups.size () < 2 || ups[1] >= dps.back () + 2))
+ touch = true;
+
+ /* Filter out the 'o's in this configuration, since they're no
+ * part in the collision.
+ *
+ * |
+ * x|o
+ * x|o
+ * x
+ *
+ */
+ ups = Stem::note_head_positions (stems[UP], true);
+ dps = Stem::note_head_positions (stems[DOWN], true);
+
/* Merge heads if the notes lie the same line, or if the "stem-up-note" is
above the "stem-down-note". */
bool merge_possible = (ups[0] >= dps[0]) && (ups.back () >= dps.back ());
*
*/
- /* TODO: filter out the 'o's in this configuration, since they're no
- * part in the collision.
- *
- * |
- * x|o
- * x|o
- * x
- *
- */
-
bool close_half_collide = false;
bool distant_half_collide = false;
bool full_collide = false;
full_collide = full_collide || (close_half_collide
&& distant_half_collide);
- /* If the only collision is in the extreme noteheads,
- then their stems can line up and the chords just 'touch'.
- A half collision with the next note along the chord prevents touching.
- */
- bool touch = false;
- if (ups[0] >= dps.back ()
- && (dps.size () < 2 || ups[0] >= dps[dps.size () - 2] + 2)
- && (ups.size () < 2 || ups[1] >= dps.back () + 2))
- touch = true;
-
/* Determine which chord goes on the left, and which goes right.
Up-stem usually goes on the right, but if chords just 'touch' we can put
both stems on a common vertical line. In the presense of collisions,
shift_amount *= 0.75;
}
- /* If the dotted notes ended up on the left, and there are collisions,
- tell the Dot_Columnn to avoid the notes on the right.
+ /* If any dotted notes ended up on the left,
+ tell the Dot_Columnn to avoid the note heads on the right.
*/
- if (full_collide || close_half_collide || distant_half_collide)
+ if (shift_amount < -1e-6
+ && Rhythmic_head::dot_count (head_up))
+ {
+ Grob *d = unsmob_grob (head_up->get_object ("dot"));
+ Grob *parent = d->get_parent (X_AXIS);
+ if (Dot_column::has_interface (parent))
+ Side_position_interface::add_support (parent, head_down);
+ }
+ else if (Rhythmic_head::dot_count (head_down))
{
- if (shift_amount < -1e-6
- && Rhythmic_head::dot_count (head_up)
- && !Rhythmic_head::dot_count (head_down))
+ Grob *d = unsmob_grob (head_down->get_object ("dot"));
+ Grob *parent = d->get_parent (X_AXIS);
+ if (Dot_column::has_interface (parent))
{
- Grob *d = unsmob_grob (head_up->get_object ("dot"));
- Grob *parent = d->get_parent (X_AXIS);
- if (Dot_column::has_interface (parent))
- Side_position_interface::add_support (parent, head_down);
+ Grob *stem = unsmob_grob (head_up->get_object ("stem"));
+ // Loop over all heads on an up-pointing-stem to see if dots
+ // need to clear any heads suspended on its right side.
+ extract_grob_set (stem, "note-heads", heads);
+ for (vsize i = 0; i < heads.size (); i++)
+ Side_position_interface::add_support (parent, heads[i]);
}
- else if (Rhythmic_head::dot_count (head_down)
- && !Rhythmic_head::dot_count (head_up))
+ }
+
+ // In meshed chords with dots on the left, adjust dot direction
+ if (shift_amount > 1e-6
+ && Rhythmic_head::dot_count (head_down))
+ {
+ Grob *dot_down = unsmob_grob (head_down->get_object ("dot"));
+ Grob *col_down = dot_down->get_parent (X_AXIS);
+ Direction dir = UP;
+ if (Rhythmic_head::dot_count (head_up))
{
- Grob *d = unsmob_grob (head_down->get_object ("dot"));
- Grob *parent = d->get_parent (X_AXIS);
- if (Dot_column::has_interface (parent))
- {
- Grob *stem = unsmob_grob (head_up->get_object ("stem"));
- extract_grob_set (stem, "note-heads", heads);
- for (vsize i = 0; i < heads.size (); i++)
- Side_position_interface::add_support (parent, heads[i]);
- }
+ Grob *dot_up = unsmob_grob (head_up->get_object ("dot"));
+ Grob *col_up = dot_up->get_parent (X_AXIS);
+ if (col_up == col_down) // let the common DotColumn arrange dots
+ dir = CENTER;
+ else // conform to the dot direction on the up-stem chord
+ dir = robust_scm2dir (dot_up->get_property ("direction"), UP);
+ }
+ if (dir != CENTER)
+ {
+ Grob *stem = unsmob_grob (head_down->get_object ("stem"));
+ extract_grob_set (stem, "note-heads", heads);
+ for (vsize i = 0; i < heads.size (); i++)
+ unsmob_grob (heads[i]->get_object ("dot"))
+ ->set_property ("direction", scm_from_int (dir));
}
}
while ((flip (&d)) != UP);
/*
- do horizontal shifts of each direction
-
- |
- x||
- x||
- x|
+ * do horizontal shifts of each direction
+ *
+ * |
+ * x||
+ * x||
+ * x|
*/
do
projects / lilypond.git / blobdiff