#include "note-column.hh"
#include "group-interface.hh"
#include "note-collision.hh"
+#include "accidental-interface.hh"
+/*
+ Hmm. why not group-extent?
+ */
MAKE_SCHEME_CALLBACK(Accidental_placement,extent_callback, 2);
SCM
Accidental_placement::extent_callback(SCM s, SCM axis)
me->set_grob_property ("accidentals", accs);
}
+/*
+ Split into break reminders.
+ */
+void
+Accidental_placement::split_accidentals (Grob * accs,
+ Link_array<Grob> *break_reminder,
+ Link_array<Grob> *real_acc)
+{
+ for (SCM acs =accs->get_grob_property ("accidentals"); gh_pair_p (acs);
+ acs =gh_cdr (acs))
+ for (SCM s = gh_cdar (acs); gh_pair_p (s); s = gh_cdr (s))
+ {
+ Grob *a = unsmob_grob (gh_car (s));
+
+ if (unsmob_grob (a->get_grob_property ("tie")))
+ break_reminder->push (a);
+ else
+ real_acc->push (a);
+ }
+}
+
+/*
+ Accidentals are special, because they appear and disappear before
+ and after ties at will.
+*/
+Interval
+Accidental_placement::get_relevant_accidental_extent (Grob *me,
+ Item *item_col,
+ Grob *left_object)
+{
+ Link_array<Grob> br, ra;
+ Link_array<Grob> *which = 0;
+
+ Accidental_placement::split_accidentals (me, &br, &ra);
+ br.concat (ra);
+
+ if (dynamic_cast<Item*>(left_object)->break_status_dir () == RIGHT)
+ which = & br;
+ else
+ which = & ra;
+
+ Interval extent;
+ for (int i = 0; i < which->size(); i++)
+ {
+ extent.unite (which->elem(i)->extent (item_col, X_AXIS));
+ }
+
+ if (!extent.empty_b())
+ {
+ Real p = gh_scm2double (me->get_grob_property ("left-padding"));
+ extent[LEFT] -= p;
+ }
+
+ return extent;
+}
+
+
+
struct Accidental_placement_entry
{
Array<Skyline_entry> left_skyline_;
The naturals should be left of the C as well; they should
be separate accs.
- TODO: Try to combine Apes before sorting them: this will allow a
- better placement.
+ Note that this placement problem looks NP hard, so we just use a
+ simple strategy, not an optimal choice.
- Note that this placement problem is almost certainly NP hard, so we
- just use a simple strategy, not an optimal choice.
*/
SCM
{
SCM accs = me->get_grob_property ("accidentals");
+ /*
+ TODO: there is a bug in this code. If two accs are on the same
+ Y-position, they share an Ape, and will be pritned in overstrike.
+ */
Link_array<Accidental_placement_entry> apes;
for (SCM s = accs; gh_pair_p (s); s =gh_cdr (s))
{
}
- Grob *commony =0 ;
+ Grob *common[] = {me, 0};
/*
First we must extract *all* pointers. We can only determine
for (int j = ape->grobs_.size(); j--;)
{
Grob * a = ape->grobs_[j];
+
+ if (common[Y_AXIS])
+ common[Y_AXIS] = common[Y_AXIS]->common_refpoint (a, Y_AXIS);
+ else
+ common[Y_AXIS] = a;
- commony = commony->common_refpoint (a, Y_AXIS);
Grob *head = a->get_parent (Y_AXIS);
Grob * col = head->get_parent (X_AXIS);
}
heads.default_sort();
heads.uniq();
- commony = common_refpoint_of_array (heads, commony, Y_AXIS);
+ common[Y_AXIS] = common_refpoint_of_array (heads, common[Y_AXIS], Y_AXIS);
for (int i= apes.size (); i--;)
for (int j = apes[i]->grobs_.size(); j--;)
{
Grob * a = apes[i]->grobs_[j];
- Box b;
- b[X_AXIS] = a->extent (me, X_AXIS);
- b[Y_AXIS] = a->extent (commony, Y_AXIS);
- ape->extents_.push (b);
+ Array<Box> boxes = Accidental_interface::accurate_boxes (a, common);
- /*
- TODO: replace the extents of a flat by combination of two
- bboxes, so that we use the shape of the flat better.
- */
- insert_extent_into_skyline (&ape->left_skyline_, b, Y_AXIS, LEFT);
- insert_extent_into_skyline (&ape->right_skyline_ , b,Y_AXIS, RIGHT);
+ ape->extents_.concat (boxes);
+ for (int j = boxes.size(); j--;)
+ {
+ insert_extent_into_skyline (&ape->left_skyline_, boxes[j], Y_AXIS, LEFT);
+ insert_extent_into_skyline (&ape->right_skyline_ , boxes[j], Y_AXIS, RIGHT);
+ }
}
}
stagger_apes (&apes);
Accidental_placement_entry * head_ape = new Accidental_placement_entry;
- Grob *commonx = common_refpoint_of_array (heads, me, X_AXIS);
+ common[X_AXIS] = common_refpoint_of_array (heads, common[X_AXIS], X_AXIS);
Array<Skyline_entry> head_skyline (empty_skyline (LEFT));
Array<Box> head_extents;
for (int i = heads.size(); i--;)
{
- Box b(heads[i]->extent (commonx, X_AXIS),
- heads[i]->extent (commony, Y_AXIS));
+ Box b(heads[i]->extent (common[X_AXIS] , X_AXIS),
+ heads[i]->extent (common[Y_AXIS], Y_AXIS));
insert_extent_into_skyline (&head_skyline, b , Y_AXIS, LEFT);
}
SCM spad = me->get_grob_property ("padding");
if (gh_number_p (spad))
padding = gh_scm2double (spad);
-
+
+
+ /*
+ TODO:
+
+ There is a bug in this code: the left_skylines should be
+ accumulated, otherwise the b will collide with bb in
+
+ bb
+ b
+ n
+
+ */
apes.push (head_ape);
for (int i= apes.size () -1 ; i-- > 0;)
{
projects / lilypond.git / blobdiff