source file of the GNU LilyPond music typesetter
- (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
+
#include "debug.hh"
#include "collision.hh"
#include "note-column.hh"
-#include "note-head.hh"
+#include "rhythmic-head.hh"
#include "paper-def.hh"
-#include "ly-symbols.hh"
+#include "axis-group-interface.hh"
+#include "item.hh"
+
-Collision::Collision()
+MAKE_SCHEME_CALLBACK (Collision,force_shift_callback,2);
+
+SCM
+Collision::force_shift_callback (SCM element_smob, SCM axis)
{
- set_axes (X_AXIS, Y_AXIS);
+ Grob *me = unsmob_grob (element_smob);
+ Axis a = (Axis) gh_scm2int (axis);
+ assert (a == X_AXIS);
+
+ me = me->parent_l (a);
+ /*
+ ugh. the way DONE is done is not clean
+ */
+ if (!unsmob_grob (me->get_grob_property ("done")))
+ {
+ me->set_grob_property ("done", me->self_scm ());
+ do_shifts (me);
+ }
+
+ return gh_double2scm (0.0);
}
+/*
+ TODO: make callback of this.
+
+ TODO:
+
+ note-width is hardcoded, making it difficult to handle all note
+ heads sanely. We should really look at the widths of the colliding
+ columns, and have a separate setting for "align stems".
+
+
+ */
void
-Collision::add_column (Note_column* ncol_l)
+Collision::do_shifts (Grob* me)
{
- clash_l_arr_.push (ncol_l);
- add_element (ncol_l);
- add_dependency (ncol_l);
-}
+ SCM autos (automatic_shift (me));
+ SCM hand (forced_shift (me));
+
+ Link_array<Grob> done;
+ Real wid
+ = gh_scm2double (me->get_grob_property ("note-width"));
+
+ for (; gh_pair_p (hand); hand =gh_cdr (hand))
+ {
+ Grob * s = unsmob_grob (gh_caar (hand));
+ Real amount = gh_scm2double (gh_cdar (hand));
+
+ s->translate_axis (amount *wid, X_AXIS);
+ done.push (s);
+ }
+ for (; gh_pair_p (autos); autos =gh_cdr (autos))
+ {
+ Grob * s = unsmob_grob (gh_caar (autos));
+ Real amount = gh_scm2double (gh_cdar (autos));
+
+ if (!done.find_l (s))
+ s->translate_axis (amount * wid, X_AXIS);
+ }
+}
+
/** This complicated routine moves note columns around horizontally to
ensure that notes don't clash.
- This should be done better, probably.
-
- TODO: forced hshift
-
+ This should be put into Scheme.
*/
-void
-Collision::do_pre_processing()
+SCM
+Collision::automatic_shift (Grob *me)
{
- Drul_array<Link_array<Note_column> > clash_groups;
+ Drul_array<Link_array<Grob> > clash_groups;
Drul_array<Array<int> > shifts;
-
- for (int i=0; i < clash_l_arr_.size(); i++)
+ SCM tups = SCM_EOL;
+
+ SCM s = me->get_grob_property ("elements");
+ for (; gh_pair_p (s); s = gh_cdr (s))
{
- clash_groups[clash_l_arr_[i]->dir ()].push (clash_l_arr_[i]);
+ SCM car = gh_car (s);
+
+ Grob * se = unsmob_grob (car);
+ if (Note_column::has_interface (se))
+ clash_groups[Note_column::dir (se)].push (se);
}
do
{
Array<int> & shift (shifts[d]);
- Link_array<Note_column> & clashes (clash_groups[d]);
+ Link_array<Grob> & clashes (clash_groups[d]);
clashes.sort (Note_column::shift_compare);
for (int i=0; i < clashes.size (); i++)
{
SCM sh
- = clashes[i]->remove_elt_property (horizontal_shift_scm_sym);
+ = clashes[i]->get_grob_property ("horizontal-shift");
- if (sh == SCM_BOOL_F)
- shift.push (0);
+ if (gh_number_p (sh))
+ shift.push (gh_scm2int (sh));
else
- shift.push (gh_scm2int (SCM_CDR (sh)));
+ shift.push (0);
}
for (int i=1; i < shift.size (); i++)
{
if (shift[i-1] == shift[i])
{
- warning (_ ("Too many clashing notecolumns. Ignoring them."));
- return;
+ warning (_ ("Too many clashing notecolumns. Ignoring them."));
+ return tups;
}
}
}
{
for (int i=0; i < clash_groups[d].size (); i++)
{
- Slice s(clash_groups[d][i]->head_positions_interval ());
+ Slice s (Note_column::head_positions_interval (clash_groups[d][i]));
s[LEFT] --;
s[RIGHT]++;
extents[d].push (s);
Slice prev =extents[d][i-1];
prev.intersect (extents[d][i]);
if (prev.length ()> 0 ||
- (extents[-d].size () && d * (extents[d][i][-d] - extents[-d][0][d]) < 0))
+ (extents[-d].size () && d * (extents[d][i][-d] - extents[-d][0][d]) < 0))
for (int j = i; j < clash_groups[d].size (); j++)
offsets[d][j] += d * 0.5;
}
all of them again. */
if (extents[UP].size () && extents[DOWN].size ())
{
- Note_column *cu_l =clash_groups[UP][0];
- Note_column *cd_l =clash_groups[DOWN][0];
- Note_head * nu_l= cu_l->head_l_arr_[0];
- Note_head * nd_l = cd_l->head_l_arr_.top();
- int downpos = cd_l->head_positions_interval ()[BIGGER];
- int uppos = cu_l->head_positions_interval ()[SMALLER];
+ Grob *cu_l =clash_groups[UP][0];
+ Grob *cd_l =clash_groups[DOWN][0];
+
+
+ /*
+ TODO.
+ */
+ Grob * nu_l= Note_column::first_head (cu_l);
+ Grob * nd_l = Note_column::first_head (cd_l);
+
+ int downpos = Note_column::head_positions_interval (cd_l)[BIGGER];
+ int uppos = Note_column::head_positions_interval (cu_l)[SMALLER];
bool merge =
downpos == uppos
- && nu_l->balltype_i_ == nd_l->balltype_i_
- && nu_l->dots_i_ == nd_l->dots_i_;
+ && Rhythmic_head::balltype_i (nu_l) == Rhythmic_head::balltype_i (nd_l);
+
+
+ if (!to_boolean (me->get_grob_property ("merge-differently-dotted")))
+ merge = merge && Rhythmic_head::dot_count (nu_l) == Rhythmic_head::dot_count (nd_l);
/*
notes are close, but can not be merged. Shift
*/
- if (abs(uppos - downpos) < 2 && !merge)
+ if (abs (uppos - downpos) < 2 && !merge)
do
{
for (int i=0; i < clash_groups[d].size (); i++)
}
while ((flip (&d))!= UP);
}
+
do
{
for (int i=0; i < clash_groups[d].size (); i++)
- {
- SCM force = clash_groups[d][i]->remove_elt_property (force_hshift_scm_sym);
- if (force != SCM_BOOL_F)
- {
- force = SCM_CDR (force);
- offsets[d][i] = gh_scm2double (force);
- }
- }
+ tups = gh_cons (gh_cons (clash_groups[d][i]->self_scm (), gh_double2scm (offsets[d][i])),
+ tups);
}
- while ((flip (&d))!= UP);
+ while (flip (&d) != UP);
+ return tups;
+}
+
+
+SCM
+Collision::forced_shift (Grob *me)
+{
+ SCM tups = SCM_EOL;
- Real wid_f = paper_l ()->note_width ();
- do
+ SCM s = me->get_grob_property ("elements");
+ for (; gh_pair_p (s); s = gh_cdr (s))
{
- for (int i=0; i < clash_groups[d].size (); i++)
+ Grob * se = unsmob_grob (gh_car (s));
+
+ SCM force = se->remove_grob_property ("force-hshift");
+ if (gh_number_p (force))
{
- clash_groups[d][i]->translate_axis (offsets[d][i]*wid_f, X_AXIS);
+ tups = gh_cons (gh_cons (se->self_scm (), force),
+ tups);
}
}
- while (flip (&d) != UP);
+ return tups;
}
-
void
-Collision::do_substitute_element_pointer (Score_element*o_l,Score_element*n_l)
+Collision::add_column (Grob*me,Grob* ncol_l)
{
- if (o_l)
- {
- clash_l_arr_.substitute (dynamic_cast<Note_column *> (o_l),
- dynamic_cast <Note_column *> (n_l));
-
- }
+ ncol_l->add_offset_callback (Collision::force_shift_callback_proc, X_AXIS);
+ Axis_group_interface::add_element (me, ncol_l);
+ me->add_dependency (ncol_l);
}
projects / lilypond.git / blobdiff