/*
- item.hh -- declare Item
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1997--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef ITEM_HH
#define ITEM_HH
-
-#include "box.hh"
#include "grob.hh"
-#include "drul-array.hh"
-
/**
- A horizontally fixed size element of the score.
-
- Item is the datastructure for printables whose width is known
- before the spacing is calculated
+ A horizontally fixed size element of the score.
+ Item is the datastructure for printables whose width is known
+ before the spacing is calculated
*/
class Item : public Grob
{
- Drul_array<Item*> broken_to_drul_;
+ Drul_array<Item *> broken_to_drul_;
+ DECLARE_CLASSNAME (Item);
public:
- VIRTUAL_COPY_CONS (Grob);
Item (SCM);
Item (Item const &);
- static bool breakable_b (Grob *);
- bool broken_b () const;
-
+ virtual Grob *clone () const;
+
+ static bool is_non_musical (Grob *);
+ static bool break_visible (Grob *);
+
+ bool is_broken () const;
+ virtual bool pure_is_visible (int start, int end) const;
+
Direction break_status_dir () const;
-
- Item *find_prebroken_piece (Direction) const;
- Grob *find_broken_piece (System *) const;
+ Item *find_prebroken_piece (Direction) const;
+ Grob *find_broken_piece (System *) const;
virtual System *get_system () const;
virtual Paper_column *get_column () const;
virtual void handle_prebroken_dependencies ();
- static bool has_interface (Grob *);
+ virtual Interval_t<int> spanned_rank_interval () const;
+ virtual Interval pure_height (Grob *ref, int start, int end);
+ virtual void cache_pure_height (Interval height);
+ DECLARE_GROB_INTERFACE ();
protected:
virtual void discretionary_processing ();
void copy_breakable_items ();
- virtual SCM do_derived_mark ();
-};
+ virtual void derived_mark () const;
+ bool cached_pure_height_valid_;
+ Interval cached_pure_height_;
+};
+Interval_t<Moment> spanned_time_interval (Item *l, Item *r);
#endif