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[lilypond.git] / lily / paper-score.cc
1 /*
2   paper-score.cc -- implement Paper_score
3
4   source file of the GNU LilyPond music typesetter
5
6   (c) 1996--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
7 */
8
9 #include "score.hh"
10 #include "main.hh"
11 #include "warn.hh"
12 #include "font-metric.hh"
13 #include "spanner.hh"
14 #include "paper-def.hh"
15 #include "system.hh"
16 #include "paper-column.hh"
17 #include "paper-score.hh"
18 #include "paper-column.hh"
19 #include "scm-hash.hh"
20 #include "gourlay-breaking.hh"
21 #include "paper-outputter.hh"
22 #include "input-file-results.hh"
23 #include "misc.hh"
24 #include "all-font-metrics.hh"
25
26 Paper_score::Paper_score ()
27 {
28   paper_ =0;
29   outputter_ =0;
30   system_ = 0;
31   main_smob_ = SCM_EOL;
32 }
33
34 void
35 Paper_score::typeset_line (System *l)
36 {
37   if (!system_)
38     {
39       system_ = l;              // ugh.
40     }
41
42   main_smob_ = gh_cons (l->self_scm (), main_smob_);
43   l->pscore_ = this;
44
45   scm_gc_unprotect_object (l->self_scm());
46 }
47
48
49 Paper_score::Paper_score (Paper_score const &s)
50   : Music_output (s)
51 {
52   assert (false);
53 }
54
55 Array<Column_x_positions>
56 Paper_score::calc_breaking ()
57 {
58   Break_algorithm *algorithm=0;
59   Array<Column_x_positions> sol;
60
61   algorithm = new Gourlay_breaking ;
62   algorithm->set_pscore (this);
63   sol = algorithm->solve ();
64   delete algorithm;
65
66   return sol;
67 }
68
69 /*
70   urg. clean me
71  */
72 void
73 Paper_score::process (String outname)
74 {
75   if (verbose_global_b)
76     progress_indication (_f ("Element count %d (spanners %d) ",
77                              system_->element_count (),
78                              system_->spanner_count ()));
79
80   
81   progress_indication (_ ("Preprocessing graphical objects...") + " ");
82
83   /*
84     Be sure to set breakability on first & last column.
85    */
86   { /* doubly, also done in Score_engraver */
87     Link_array<Grob> pc (system_->columns ());
88   
89     pc[0]->set_grob_property ("breakable", SCM_BOOL_T);
90     pc.top ()->set_grob_property ("breakable", SCM_BOOL_T);
91   }
92   system_->pre_processing ();
93  
94   Array<Column_x_positions> breaking = calc_breaking ();
95   system_->break_into_pieces (breaking);
96   
97   outputter_ = paper_->get_paper_outputter (outname);
98   outputter_->output_header ();
99   outputter_->output_version ();
100
101   progress_indication ("\n");
102
103   if (global_input_file->header_)
104     {
105       outputter_->output_scope (global_input_file->header_, "lilypond");
106       outputter_->write_header_fields_to_file (global_input_file->header_);
107     }
108   
109   if (header_)
110     {
111       outputter_->output_scope (header_, "lilypond");
112       outputter_->write_header_fields_to_file (header_);
113     }
114
115   outputter_->output_scope (paper_->scope_, "lilypondpaper");
116
117   SCM scm = scm_list_n (ly_symbol2scm ("header-end"), SCM_UNDEFINED);
118   outputter_->output_scheme (scm);
119
120   system_->output_lines ();
121
122   scm = scm_list_n (ly_symbol2scm ("end-output"), SCM_UNDEFINED);
123   outputter_->output_scheme (scm);
124
125   progress_indication ("\n");
126
127   // huh?
128   delete outputter_;
129   outputter_ = 0;
130 }