source file of the GNU LilyPond music typesetter
- (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include "dimension-cache.hh"
+#include "dimension-cache.hh"
#include "paper-score.hh"
#include "debug.hh"
#include "item.hh"
broken_to_drul_[LEFT] = broken_to_drul_[RIGHT]=0;
}
+/**
+ Item copy ctor. Copy nothing: everything should be a elt property
+ or a special purpose poitner (such as broken_to_drul_[]) */
+Item::Item (Item const &s)
+ : Score_element (s)
+{
+ broken_to_drul_[LEFT] = broken_to_drul_[RIGHT] =0;
+}
+
+
+
bool
Item::breakable_b () const
{
return false;
Item * i =dynamic_cast<Item*> (parent_l (X_AXIS));
- return (i) ? i->breakable_b () : get_elt_property( breakable_scm_sym) != SCM_BOOL_F;
-}
-
-void
-Item::do_print() const
-{
-}
-
-
-Real
-Item::hpos_f() const
-{
- return relative_coordinate (0, X_AXIS);
+ return (i) ? i->breakable_b () : to_boolean (get_elt_property( "breakable"));
}
Line_of_score *
Item::line_l() const
{
- Graphical_element *g = parent_l (X_AXIS);
- if (!g)
- return 0;
- return dynamic_cast<Score_element *> (g)-> line_l ();
+ Score_element *g = parent_l (X_AXIS);
+ return g ? g->line_l () : 0;
}
void
Item::copy_breakable_items()
{
- if (broken_to_drul_[LEFT] || broken_to_drul_[RIGHT]
- || !breakable_b ())
- return ;
-
Drul_array<Item *> new_copies;
Direction i=LEFT;
do
broken_to_drul_[i]->try_visibility_lambda();
}
while (flip(&i) != LEFT);
- try_visibility_lambda ();
}
void
Item::try_visibility_lambda ()
{
- SCM vis = remove_elt_property (visibility_lambda_scm_sym);
- if (vis != SCM_BOOL_F)
+ SCM vis = remove_elt_property ("visibility-lambda");
+ if (gh_procedure_p (vis))
{
SCM args = scm_listify (gh_int2scm (break_status_dir ()), SCM_UNDEFINED);
- SCM result = gh_apply ( SCM_CDR(vis), args);
- int trans = gh_scm2bool (gh_car (result));
- int empty = gh_scm2bool (gh_cdr (result));
+ SCM result = gh_apply (vis, args);
+ bool trans = gh_scm2bool (gh_car (result));
+ bool empty = gh_scm2bool (gh_cdr (result));
if (empty)
- set_empty (true, X_AXIS, Y_AXIS);
+ {
+ set_empty (X_AXIS);
+ set_empty ( Y_AXIS);
+ }
if (trans)
- set_elt_property (transparent_scm_sym, SCM_BOOL_T);
+ set_elt_property ("transparent", SCM_BOOL_T);
}
}
+bool
+Item::broken_b () const
+{
+ return broken_to_drul_[LEFT] || broken_to_drul_[RIGHT];
+}
+
void
Item::do_break ()
{
- copy_breakable_items();
- handle_prebroken_dependencies();
+ if (broken_b ())
+ return;
+
+ if (breakable_b ())
+ {
+ copy_breakable_items();
+ handle_prebroken_dependencies();
- /*
+ /*
Otherwise the broken items won't be pre_process()'ed.
*/
- add_dependency (broken_to_drul_[LEFT]);
- add_dependency (broken_to_drul_[RIGHT]);
+
+ if (broken_to_drul_[LEFT])
+ {
+ add_dependency (broken_to_drul_[LEFT]);
+ add_dependency (broken_to_drul_[RIGHT]);
+ }
+ }
+ try_visibility_lambda (); // ugh.
}
void
Item::do_breakable_col_processing()
{
- if (breakable_b ())
- do_break ();
- else
- try_visibility_lambda ();
+ do_break ();
}
-Item*
-Item::find_prebroken_piece (Line_of_score*l) const
+
+Score_element*
+Item::find_broken_piece (Line_of_score*l) const
{
if (line_l() == l)
return (Item*)(this);
- else if (broken_to_drul_[LEFT] && broken_to_drul_[LEFT]->line_l() == l)
- return broken_to_drul_[LEFT];
- else if (broken_to_drul_[RIGHT] && broken_to_drul_[RIGHT]->line_l() == l)
- return broken_to_drul_[RIGHT];
+
+ Direction d = LEFT;
+ do {
+ Score_element *s = find_broken_piece (d);
+ if (s && s->line_l () == l)
+ return s;
+ }
+ while (flip (&d) != LEFT);
return 0;
}
Item*
-Item::find_prebroken_piece (Direction d) const
+Item::find_broken_piece (Direction d) const
{
+ Item * me = (Item *) (this);
if (!d)
- return (Item *) (this); // ugh
+ return me;
+ else if (breakable_b ())
+ {
+ me->do_break ();
+ return dynamic_cast<Item*> (broken_to_drul_[d]);
+ }
else
- return dynamic_cast<Item*> (broken_to_drul_[d]);
-}
-
-void
-Item::handle_prebroken_dependencies()
-{
- if (original_l_)
- Score_element::handle_prebroken_dependencies();
-}
-
-bool
-Item::broken_original_b () const
-{
- return broken_to_drul_[LEFT] || broken_to_drul_[RIGHT];
-}
-
-int
-Item::left_right_compare(Item const *l, Item const *r)
-{
- Paper_column *p1 = l->column_l ();
- Paper_column* p2 = r->column_l ();
- return p1->rank_i () - p2->rank_i ();
+ return 0;
}
Paper_column *
return dynamic_cast<Item*> (parent_l (X_AXIS))->column_l ();
}
-Item::Item (Item const &s)
- : Score_element (s)
-{
- broken_to_drul_[LEFT] = broken_to_drul_[RIGHT] =0;
-}
-
-
-void
-Item::handle_prebroken_dependents ()
-{
- Item * parent = dynamic_cast<Item*> (parent_l (X_AXIS));
- if (breakable_b () && parent)
- {
- if(!(broken_to_drul_[LEFT] || broken_to_drul_[RIGHT]))
- do_break ();
-
- Direction d = LEFT;
- do
- {
- Item * broken_self = find_prebroken_piece (d);
- Item * broken_parent = parent->find_prebroken_piece (d);
-
- broken_self->set_parent (broken_parent, X_AXIS);
-
- /*
- ugh. Should do this is after breaking?
- */
- if (!broken_self->parent_l (Y_AXIS))
- {
- Score_element * yparent =dynamic_cast<Score_element*>(parent_l (Y_AXIS));
- Item *yparenti = dynamic_cast<Item*> (yparent);
- Item *broken_yparent = yparenti ?
- yparenti->find_prebroken_piece (d) : 0;
-
- if (!yparent)
- programming_error ("Vertical refpoint lost!");
- else if (yparenti)
- {
- broken_self->set_parent (broken_yparent, Y_AXIS);
- }
- }
- }
- while ((flip (&d))!=LEFT);
- }
-}
-
Direction
Item::break_status_dir () const
{
else
return CENTER;
}
+
+
projects / lilypond.git / blobdiff