/*
- g-script-column.cc -- implement Script_column
+ script-column.cc -- implement Script_column
source file of the GNU LilyPond music typesetter
- (c) 1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1999--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include "script-column.hh"
-#include "staff-side.hh"
-#include "dimension-cache.hh"
-static Staff_side_item *
-get_Staff_side (Item *i)
-{
- Graphical_element *e1 = i->parent_l(Y_AXIS);
+#include "script-column.hh"
- return dynamic_cast<Staff_side_item*>(e1);
-}
+#include "side-position-interface.hh"
+#include "warn.hh"
+#include "group-interface.hh"
void
-Script_column::add_staff_sided (Item *i)
+Script_column::add_staff_sided (Grob *me, Item *i)
{
- SCM p = get_Staff_side (i)->get_elt_property ("script-priority");
- if (p == SCM_UNDEFINED)
+ SCM p = i->get_property ("script-priority");
+ if (!scm_is_number (p))
return;
+
+ Pointer_group_interface::add_grob (me, ly_symbol2scm ("scripts"),i);
- staff_sided_item_l_arr_.push (i);
- add_dependency (i);
+ me->add_dependency (i);
}
-static int
-staff_side_compare (Item * const &i1,
- Item * const &i2)
+LY_DEFINE (ly_grob_script_priority_less, "ly:grob-script-priority-less",
+ 2, 0, 0, (SCM a, SCM b),
+ "Compare two grobs by script priority. For internal use.")
{
- Score_element *e1 = get_Staff_side (i1);
- Score_element *e2 = get_Staff_side (i2);
+ Grob *i1 = unsmob_grob (a);
+ Grob *i2 = unsmob_grob (b);
- SCM p1 = e1->get_elt_property ("script-priority");
- SCM p2 = e2->get_elt_property ("script-priority");
+ SCM p1 = i1->get_property ("script-priority");
+ SCM p2 = i2->get_property ("script-priority");
- return gh_scm2int (p1) - gh_scm2int (p2);
+ return scm_to_int (p1) < scm_to_int (p2) ? SCM_BOOL_T : SCM_BOOL_F;
}
-void
-Script_column::do_pre_processing ()
+MAKE_SCHEME_CALLBACK (Script_column, before_line_breaking, 1);
+SCM
+Script_column::before_line_breaking (SCM smob)
{
- Drul_array<Link_array<Item> > arrs;
+ Grob* me = unsmob_grob (smob);
+ Drul_array<SCM> scripts (SCM_EOL, SCM_EOL);
+ Link_array<Grob> staff_sided;
+
+ for (SCM s = me->get_property ("scripts"); scm_is_pair (s); s = scm_cdr (s))
+ {
+ Grob *sc = unsmob_grob (scm_car (s));
- for (int i=0; i < staff_sided_item_l_arr_.size (); i++)
+ /*
+ Don't want to consider scripts horizontally next to notes.
+ */
+ if (!sc->has_offset_callback (Side_position_interface::aligned_side_proc,
+ X_AXIS))
+ staff_sided.push (sc);
+ }
+
+ for (int i = 0; i < staff_sided.size (); i++)
{
- Staff_side_item * ip = get_Staff_side (staff_sided_item_l_arr_[i]);
- arrs[ip->dir_].push (staff_sided_item_l_arr_[i]);
+ Grob* g = staff_sided[i];
+ Direction d = Side_position_interface::get_direction (g);
+ if (!d)
+ {
+ programming_error ( "No direction for script?");
+ d = DOWN;
+ g->set_property ("direction", scm_int2num (d));
+ }
+
+ scripts[d] = scm_cons (g->self_scm (), scripts[d]);
}
Direction d = DOWN;
- do {
- Link_array<Item> &arr(arrs[d]);
-
- arr.sort (staff_side_compare);
+ do
+ {
+ SCM ss = scm_reverse_x (scripts[d], SCM_EOL);
+ ss = scm_stable_sort_x (ss, ly_grob_script_priority_less_proc);
+
+ Grob * last = 0;
+ for (SCM s = ss; scm_is_pair (s); s = scm_cdr (s))
+ {
+ Grob *g = unsmob_grob (scm_car (s));
+ if (last)
+ Side_position_interface::add_support (g,last);
+
+ last = g;
+ }
+
+ } while (flip (&d) != DOWN);
- Item * last = 0;
- for (int i=0; i < arr.size (); i++)
- {
- Staff_side_item * gs = get_Staff_side (arr[i]);
- if (last)
- {
- gs->add_support (last);
- gs->add_support (get_Staff_side (last));
- }
-
- gs->remove_elt_property ("script-priority");
- last = arr[i];
- }
-
- } while (flip (&d) != DOWN);
+ return SCM_UNSPECIFIED;
}
+ADD_INTERFACE (Script_column,"script-column-interface",
+ "An interface that sorts scripts "
+ "according to their @code{script-priority}",
+ "");