2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 1996--2012 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_extremal_staff (Direction dir, Interval const &);
43 Grob *get_neighboring_staff (Direction dir, Grob *vertical_axis_group, Interval_t<int> bounds);
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 vector<Real> get_footnote_heights_in_range (vsize st, vsize end);
48 vector<Real> get_in_note_heights_in_range (vsize st, vsize end);
49 vector<Real> internal_get_note_heights_in_range (vsize st, vsize end, bool foot);
50 vector<Grob *> get_footnote_grobs_in_range (vsize st, vsize end);
51 vsize num_footnotes ();
52 void do_break_substitution_and_fixup_refpoints ();
53 void post_processing ();
54 SCM get_paper_system ();
55 SCM get_paper_systems ();
56 SCM get_broken_system_grobs ();
57 SCM get_broken_footnote_stencils ();
59 DECLARE_SCHEME_CALLBACK (footnotes_before_line_breaking, (SCM));
60 DECLARE_SCHEME_CALLBACK (footnotes_after_line_breaking, (SCM));
61 DECLARE_SCHEME_CALLBACK (vertical_skyline_elements, (SCM));
62 DECLARE_SCHEME_CALLBACK (calc_pure_relevant_grobs, (SCM));
63 DECLARE_SCHEME_CALLBACK (height, (SCM));
64 DECLARE_SCHEME_CALLBACK (calc_pure_height, (SCM, SCM, SCM));
65 DECLARE_SCHEME_CALLBACK (get_staves, (SCM));
66 DECLARE_SCHEME_CALLBACK (get_spaceable_staves, (SCM));
67 DECLARE_SCHEME_CALLBACK (get_nonspaceable_staves, (SCM));
68 DECLARE_SCHEME_CALLBACK (get_vertical_alignment, (SCM));
71 System (System const &);
73 int element_count () const;
74 int spanner_count () const;
76 void break_into_pieces (vector<Column_x_positions> const &);
77 DECLARE_GROB_INTERFACE ();
79 vector<Item *> broken_col_range (Item const *, Item const *) const;
80 vector<Grob *> used_columns () const;
81 Paper_column *column (vsize i) const;
83 void add_column (Paper_column *);
84 void typeset_grob (Grob *);
85 void pre_processing ();
87 Interval begin_of_line_pure_height (vsize start, vsize end);
88 Interval rest_of_line_pure_height (vsize start, vsize end);
89 Interval pure_refpoint_extent (vsize start, vsize end);
90 void collect_labels (Grob const *, SCM *);
93 virtual void derived_mark () const;
94 virtual Grob *clone () const;
97 Interval part_of_line_pure_height (vsize start, vsize end, bool begin);
100 void set_loose_columns (System *which, Column_x_positions const *posns);
102 #endif /* SYSTEM_HH */