source file of the GNU LilyPond music typesetter
- (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ (c) 1997--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "note-collision.hh"
#include "note-head.hh"
#include "output-def.hh"
#include "pointer-group-interface.hh"
+#include "item.hh"
#include "rhythmic-head.hh"
#include "staff-symbol-referencer.hh"
#include "side-position-interface.hh"
if (!extents[UP].size () || ! extents[DOWN].size ())
return;
- Grob *cu = clash_groups[UP][0];
- Grob *cd = clash_groups[DOWN][0];
+ Grob *clash_up = clash_groups[UP][0];
+ Grob *clash_down = clash_groups[DOWN][0];
/* Every note column should have a stem, but avoid a crash. */
- if (!Note_column::get_stem (cu) || !Note_column::get_stem (cd))
+ if (!Note_column::get_stem (clash_up) || !Note_column::get_stem (clash_down))
return;
- Drul_array<Grob*> stems (Note_column::get_stem (cd),
- Note_column::get_stem (cu));
+ Drul_array<Grob*> stems (Note_column::get_stem (clash_down),
+ Note_column::get_stem (clash_up));
- Grob *nu = Note_column::first_head (cu);
- Grob *nd = Note_column::first_head (cd);
+ 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 (cu));
- vector<int> dps = Stem::note_head_positions (Note_column::get_stem (cd));
+ 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));
/* Too far apart to collide. */
if (ups[0] > dps.back () + 1)
bool merge_possible = (ups[0] >= dps[0]) && (ups.back () >= dps.back ());
/* Do not merge notes typeset in different style. */
- if (!ly_is_equal (nu->get_property ("style"),
- nd->get_property ("style")))
+ if (!ly_is_equal (head_up->get_property ("style"),
+ head_down->get_property ("style")))
merge_possible = false;
- int upball_type = Rhythmic_head::duration_log (nu);
- int dnball_type = Rhythmic_head::duration_log (nd);
+ int up_ball_type = Rhythmic_head::duration_log (head_up);
+ int down_ball_type = Rhythmic_head::duration_log (head_down);
/* Do not merge whole notes (or longer, like breve, longa, maxima). */
- if (merge_possible && (upball_type <= 0 || dnball_type <= 0))
+ if (merge_possible && (up_ball_type <= 0 || down_ball_type <= 0))
merge_possible = false;
if (merge_possible
- && Rhythmic_head::dot_count (nu) != Rhythmic_head::dot_count (nd)
+ && Rhythmic_head::dot_count (head_up) != Rhythmic_head::dot_count (head_down)
&& !to_boolean (me->get_property ("merge-differently-dotted")))
merge_possible = false;
/* Can only merge different heads if merge-differently-headed is
set. */
if (merge_possible
- && upball_type != dnball_type
+ && up_ball_type != down_ball_type
&& !to_boolean (me->get_property ("merge-differently-headed")))
merge_possible = false;
- if (merge_possible
- && nu->get_property ("style") == ly_symbol2scm ("fa")
- && nd->get_property ("style") == ly_symbol2scm ("fa"))
- {
- Interval uphead_size = nu->extent (nu, Y_AXIS);
- Offset att = Offset (0.0, -1.0);
- nu->set_property ("stem-attachment", ly_offset2scm (att));
- nu->set_property ("transparent", SCM_BOOL_T);
- }
-
/* Should never merge quarter and half notes, as this would make
them indistinguishable. */
if (merge_possible
Real shift_amount = 1;
bool touch = (ups[0] >= dps.back ());
+ /* As a special case, if the topmost part of the downstem chord is a second,
+ the top note of which is the same pitch as the lowest upstem note, they
+ shouldn't count as touching.
+ */
+ if (dps.back () == ups[0] && dps.size () > 1 && dps[dps.size() - 2] == ups[0] - 1)
+ touch = false;
+
if (touch)
shift_amount *= -1;
make sure the dotted heads go to the right. */
bool stem_to_stem = false;
if (full_collide)
- if (Rhythmic_head::dot_count (nu) > Rhythmic_head::dot_count (nd))
- shift_amount = 1;
- else if (Rhythmic_head::dot_count (nu) < Rhythmic_head::dot_count (nd))
- stem_to_stem = true;
+ {
+ if (Rhythmic_head::dot_count (head_up) > Rhythmic_head::dot_count (head_down))
+ shift_amount = 1;
+ else if (Rhythmic_head::dot_count (head_up) < Rhythmic_head::dot_count (head_down))
+ stem_to_stem = true;
+ }
+ /* The solfa is a triangle, which is inverted depending on stem
+ direction. In case of a collision, one of them should be removed,
+ so the resulting note does not look like a block.
+ */
+ if (merge_possible
+ && head_up->get_property ("style") == ly_symbol2scm ("fa")
+ && head_down->get_property ("style") == ly_symbol2scm ("fa"))
+ {
+ Interval uphead_size = head_up->extent (head_up, Y_AXIS);
+ Offset att = Offset (0.0, -1.0);
+ head_up->set_property ("stem-attachment", ly_offset2scm (att));
+ head_up->set_property ("transparent", SCM_BOOL_T);
+ }
+
if (merge_possible)
{
shift_amount = 0;
or head with smallest amount of dots. Note: when merging
different heads, dots on the smaller one disappear. */
Grob *wipe_ball = 0;
- Grob *dot_wipe_head = nu;
+ Grob *dot_wipe_head = head_up;
- if (upball_type == dnball_type)
+ if (up_ball_type == down_ball_type)
{
- if (Rhythmic_head::dot_count (nd) < Rhythmic_head::dot_count (nu))
+ if (Rhythmic_head::dot_count (head_down) < Rhythmic_head::dot_count (head_up))
{
- wipe_ball = nd;
- dot_wipe_head = nd;
+ wipe_ball = head_down;
+ dot_wipe_head = head_down;
}
- else if (Rhythmic_head::dot_count (nd) > Rhythmic_head::dot_count (nu))
+ else if (Rhythmic_head::dot_count (head_down) > Rhythmic_head::dot_count (head_up))
{
- dot_wipe_head = nu;
- wipe_ball = nu;
+ dot_wipe_head = head_up;
+ wipe_ball = head_up;
}
else
- dot_wipe_head = nu;
+ dot_wipe_head = head_up;
}
- else if (dnball_type > upball_type)
+ else if (down_ball_type > up_ball_type)
{
- wipe_ball = nd;
- dot_wipe_head = nd;
+ wipe_ball = head_down;
+ dot_wipe_head = head_down;
}
- else if (dnball_type < upball_type)
+ else if (down_ball_type < up_ball_type)
{
- wipe_ball = nu;
- dot_wipe_head = nu;
+ wipe_ball = head_up;
+ dot_wipe_head = head_up;
}
if (dot_wipe_head)
shift_amount *= 0.5;
/* we're meshing. */
- else if (Rhythmic_head::dot_count (nu) || Rhythmic_head::dot_count (nd))
+ else if (Rhythmic_head::dot_count (head_up) || Rhythmic_head::dot_count (head_down))
shift_amount *= 0.1;
else
shift_amount *= 0.17;
+ /*
+
+ */
+ if (full_collide
+ && down_ball_type * up_ball_type == 0)
+ {
+ if (up_ball_type == 0 && down_ball_type == 1)
+ shift_amount *= 1.25;
+ else if (up_ball_type == 0 && down_ball_type == 2)
+ shift_amount *= 1.35;
+ else if (down_ball_type == 0 && up_ball_type == 1)
+ shift_amount *= 0.7;
+ else if (down_ball_type == 0 && up_ball_type == 2)
+ shift_amount *= 0.75;
+ }
+
/*
* Fix issue #44:
*
* hasn't got any dots.
*/
if (close_half_collide
- && Rhythmic_head::dot_count (nu)
- && !Rhythmic_head::dot_count (nd))
+ && Rhythmic_head::dot_count (head_up)
+ && !Rhythmic_head::dot_count (head_down))
{
Grob *staff = Staff_symbol_referencer::get_staff_symbol (me);
if (!Staff_symbol_referencer::on_line (staff, ups[0]))
- {
- Grob *d = unsmob_grob (nu->get_object ("dot"));
- Grob *parent = d->get_parent (X_AXIS);
- if (Dot_column::has_interface (parent))
- Side_position_interface::add_support (parent, nd);
- }
+ /*
+ TODO: consider junking the else body.
+ */
+ if (to_boolean (me->get_property ("prefer-dotted-right")))
+ {
+ shift_amount = 0.5;
+ }
+ else
+ {
+ 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);
+ }
}
/* For full or close half collisions, the right hand head may
obscure dots. Move dots to the right. */
if (abs (shift_amount) > 1e-6
- && Rhythmic_head::dot_count (nd) > Rhythmic_head::dot_count (nu)
+ && Rhythmic_head::dot_count (head_down) > Rhythmic_head::dot_count (head_up)
&& (full_collide || close_half_collide))
{
- Grob *d = unsmob_grob (nd->get_object ("dot"));
+ Grob *d = unsmob_grob (head_down->get_object ("dot"));
Grob *parent = d->get_parent (X_AXIS);
/*
far to the right.
*/
if (Dot_column::has_interface (parent))
- Side_position_interface::add_support (parent, nu);
+ {
+ 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]);
+ }
}
Direction d = UP;
}
-MAKE_SCHEME_CALLBACK(Note_collision_interface, calc_positioning_done, 1)
+MAKE_SCHEME_CALLBACK (Note_collision_interface, calc_positioning_done, 1)
SCM
Note_collision_interface::calc_positioning_done (SCM smob)
{
- Grob *me = unsmob_grob (smob);
- Drul_array<vector<Grob*> > cg = get_clash_groups (me);
+ Grob *me = unsmob_grob (smob);
+ me->set_property ("positioning-done", SCM_BOOL_T);
+
+ Drul_array<vector<Grob*> > clash_groups = get_clash_groups (me);
Direction d = UP;
do
{
- for (vsize i = cg[d].size(); i--; )
+ for (vsize i = clash_groups[d].size (); i--; )
{
/*
Trigger positioning
*/
- cg[d][i]->extent (me, X_AXIS);
+ clash_groups[d][i]->extent (me, X_AXIS);
}
}
while (flip (&d) != UP);
- SCM autos (automatic_shift (me, cg));
+ SCM autos (automatic_shift (me, clash_groups));
SCM hand (forced_shift (me));
Real wid = 0.0;
do
{
- if (cg[d].size ())
+ if (clash_groups[d].size ())
{
- Grob *h = cg[d][0];
+ Grob *h = clash_groups[d][0];
Grob *fh = Note_column::first_head (h);
if (fh)
wid = fh->extent (h, X_AXIS).length ();
/** This complicated routine moves note columns around horizontally to
ensure that notes don't clash.
- This should be put into Scheme.
*/
SCM
Note_collision_interface::automatic_shift (Grob *me,
- Drul_array < vector<Grob*>
- > clash_groups)
+ Drul_array<vector<Grob*> > clash_groups)
{
Drul_array < vector<int> > shifts;
SCM tups = SCM_EOL;
}
while ((flip (&d)) != UP);
+
+ /*
+ see input/regression/dot-up-voice-collision.ly
+ */
+ for (vsize i = 0; i < clash_groups[UP].size (); i++)
+ {
+ Grob *g = clash_groups[UP][i];
+ Grob *dc = Note_column::dot_column (g);
+
+ if (dc)
+ for (vsize j = i + 1; j < clash_groups[UP].size (); j++)
+ {
+ Grob *stem = Note_column::get_stem (clash_groups[UP][j]);
+ Side_position_interface::add_support (dc, stem);
+ }
+ }
+
/*
Check if chords are meshing
*/
Axis_group_interface::add_element (me, ncol);
}
-ADD_INTERFACE (Note_collision_interface, "note-collision-interface",
- "An object that handles collisions between notes with different stem "
- "directions and horizontal shifts. Most of the interesting properties "
- "are to be set in @ref{note-column-interface}: these are "
- "@code{force-hshift} and @code{horizontal-shift}.",
+ADD_INTERFACE (Note_collision_interface,
+ "An object that handles collisions between notes with"
+ " different stem directions and horizontal shifts. Most of"
+ " the interesting properties are to be set in"
+ " @ref{note-column-interface}: these are @code{force-hshift}"
+ " and @code{horizontal-shift}.",
/* properties */
"merge-differently-dotted "
"merge-differently-headed "
- "positioning-done ");
+ "positioning-done "
+ "prefer-dotted-right "
+ );
projects / lilypond.git / blobdiff