source file of the GNU LilyPond music typesetter
- (c) 1997--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
+#include "item.hh"
+
#include "paper-score.hh"
#include "warn.hh"
-#include "item.hh"
#include "paper-column.hh"
-#include "spanner.hh"
#include "lily-guile.hh"
#include "system.hh"
#include "group-interface.hh"
-Item::Item (SCM s)
- : Grob (s)
+Grob *
+Item::clone (int count) const
+{
+ return new Item (*this, count);
+}
+
+
+Item::Item (SCM s, Object_key const *key)
+ : Grob (s, key)
{
- broken_to_drul_[LEFT] = broken_to_drul_[RIGHT]=0;
+ broken_to_drul_[LEFT] = broken_to_drul_[RIGHT]= 0;
Group_interface::add_thing (this, ly_symbol2scm ("interfaces"), ly_symbol2scm ("item-interface"));
}
/**
Item copy ctor. Copy nothing: everything should be a elt property
or a special purpose pointer (such as broken_to_drul_[]) */
-Item::Item (Item const &s)
- : Grob (s)
+Item::Item (Item const &s, int copy_count)
+ : Grob (s, copy_count)
{
- broken_to_drul_[LEFT] = broken_to_drul_[RIGHT] =0;
+ broken_to_drul_[LEFT] = broken_to_drul_[RIGHT] = 0;
}
bool
-Item::breakable_b (Grob*me)
+Item::is_breakable (Grob*me)
{
if (me->original_)
return false;
if (!dynamic_cast<Item*> (me))
me->programming_error ("only items can be breakable.");
- Item * i =dynamic_cast<Item*> (me->get_parent (X_AXIS));
- return (i) ? Item::breakable_b (i) : to_boolean (me->get_grob_property ("breakable"));
+ Item * i = dynamic_cast<Item*> (me->get_parent (X_AXIS));
+ return (i) ? Item::is_breakable (i) : to_boolean (me->get_property ("breakable"));
}
Paper_column *
Item::copy_breakable_items ()
{
Drul_array<Item *> new_copies;
- Direction i=LEFT;
+ Direction i = LEFT;
+ int count = 0;
do
{
- Grob * dolly = clone ();
+ Grob * dolly = clone (count ++);
Item * item = dynamic_cast<Item*> (dolly);
pscore_->system_->typeset_grob (item);
- new_copies[i] =item;
+ new_copies[i] = item;
}
while (flip (&i) != LEFT);
- broken_to_drul_= new_copies;
+ broken_to_drul_ = new_copies;
}
bool
-Item::broken_b () const
+Item::is_broken () const
{
return broken_to_drul_[LEFT] || broken_to_drul_[RIGHT];
}
void
Item::discretionary_processing ()
{
- if (broken_b ())
+ if (is_broken ())
return;
- if (Item::breakable_b (this))
+ if (Item::is_breakable (this))
copy_breakable_items ();
}
give the item to break-visibility itself, so the function can do
more complicated things.
*/
- SCM vis = get_grob_property ("break-visibility");
- if (gh_procedure_p (vis))
+ SCM vis = get_property ("break-visibility");
+ if (ly_c_procedure_p (vis))
{
- SCM args = scm_list_n (gh_int2scm (break_status_dir ()), SCM_UNDEFINED);
- SCM result = gh_apply (vis, args);
- bool trans = gh_scm2bool (ly_car (result));
- bool empty = gh_scm2bool (ly_cdr (result));
+ SCM args = scm_list_n (scm_int2num (break_status_dir ()), SCM_UNDEFINED);
+ SCM result = scm_apply_0 (vis, args);
+ bool trans = ly_scm2bool (scm_car (result));
+ bool empty = ly_scm2bool (scm_cdr (result));
if (empty && trans)
suicide ();
set_extent (SCM_EOL, Y_AXIS);
}
else if (trans)
- set_grob_property ("molecule-callback", SCM_EOL);
+ set_property ("print-function", SCM_EOL);
}
}
-ADD_INTERFACE(Item,
+ADD_INTERFACE (Item,
"item-interface",
"\n"
"\n"
"the outcome of the @code{break-visibility}. This grob property is a\n"
"function taking a direction (-1, 0 or 1) as argument. It returns a\n"
"cons of booleans, signifying whether this grob should be transparent\n"
- "and have no extent.\n",
+ "and have no extent.\n"
+ "\n"
+ "The following variables for break-visibility are predefined:\n"
+ "@example\n"
+ " grob will show: before no after\n"
+ " break break break\n"
+ " all-invisible no no no\n"
+ " begin-of-line-visible no no yes\n"
+ " end-of-line-visible yes no no\n"
+ " all-visible yes yes yes\n"
+ " begin-of-line-invisible yes yes no\n"
+ " end-of-line-invisible no yes yes\n"
+ "@end example\n"
+ ,
"no-spacing-rods break-visibility breakable")