2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 1996--2011 Han-Wen Nienhuys
6 LilyPond is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 LilyPond is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
23 #include "column-x-positions.hh"
28 If you keep following offset reference points, you will always end
29 up at the root object. This root object is called @ref{System}, and it
30 represents a system (i.e. a line of music).
32 class System : public Spanner
35 Grob_array *all_elements_;
36 void init_elements ();
37 friend class Paper_score; // ugh.
38 Paper_score *pscore_; // ugh.
41 Paper_score *paper_score () const;
42 Grob *get_vertical_alignment ();
43 Grob *get_extremal_staff (Direction dir, Interval const&);
44 Grob *get_pure_bound (Direction dir, int start, int end);
45 Grob *get_maybe_pure_bound (Direction dir, bool pure, int start, int end);
46 int get_rank () const;
47 void do_break_substitution_and_fixup_refpoints ();
48 void post_processing ();
49 SCM get_paper_system ();
50 SCM get_paper_systems ();
51 SCM get_broken_system_grobs ();
53 DECLARE_SCHEME_CALLBACK (calc_pure_relevant_grobs, (SCM));
54 DECLARE_SCHEME_CALLBACK (height, (SCM));
55 DECLARE_SCHEME_CALLBACK (calc_pure_height, (SCM, SCM, SCM));
58 System (System const &);
60 int element_count () const;
61 int spanner_count () const;
63 void break_into_pieces (vector<Column_x_positions> const &);
64 DECLARE_GROB_INTERFACE();
66 vector<Item*> broken_col_range (Item const *, Item const *) const;
67 vector<Grob*> used_columns () const;
68 Paper_column *column (vsize i) const;
70 void add_column (Paper_column *);
71 void typeset_grob (Grob *);
72 void pre_processing ();
74 Interval begin_of_line_pure_height (vsize start, vsize end);
75 Interval rest_of_line_pure_height (vsize start, vsize end);
76 Interval pure_refpoint_extent (vsize start, vsize end);
79 virtual void derived_mark () const;
80 virtual Grob *clone () const;
83 Interval part_of_line_pure_height (vsize start, vsize end, bool begin);
86 void set_loose_columns (System *which, Column_x_positions const *posns);
88 #endif /* SYSTEM_HH */