2 paper-outputter.cc -- implement Paper_outputter
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
7 Jan Nieuwenhuizen <janneke@gnu.org>
14 #include "dimensions.hh"
15 #include "font-metric.hh"
16 #include "input-smob.hh"
17 #include "lily-guile.hh"
18 #include "lily-version.hh"
19 #include "ly-module.hh"
22 #include "paper-book.hh"
23 #include "paper-def.hh"
24 #include "paper-line.hh"
25 #include "paper-outputter.hh"
26 #include "file-name.hh"
27 #include "scm-hash.hh"
29 #include "string-convert.hh"
33 extern SCM stencil2line (Stencil* stil, bool is_title = false);
35 Paper_outputter::Paper_outputter (String filename)
38 file_ = scm_open_file (scm_makfrom0str (filename.to_str0 ()),
39 scm_makfrom0str ("w"));
41 String module_name = "scm output-" + output_format_global;
42 output_module_ = scm_c_resolve_module (module_name.to_str0 ());
45 Paper_outputter::~Paper_outputter ()
47 scm_close_port (file_);
52 Paper_outputter::output_scheme (SCM scm)
54 scm_display (scm_eval (scm, output_module_), file_);
58 Paper_outputter::output_metadata (Paper_def *paper, SCM scopes)
61 for (int i = dump_header_fieldnames_global.size (); i--; )
63 = scm_cons (ly_symbol2scm (dump_header_fieldnames_global[i].to_str0 ()),
66 File_name file_name (filename_);
68 String basename = file_name.to_string ();
69 output_scheme (scm_list_n (ly_symbol2scm ("output-scopes"),
71 ly_quote_scm (scopes),
72 ly_quote_scm (fields),
73 scm_makfrom0str (basename.to_str0 ()),
78 Paper_outputter::output_header (Paper_def *paper, SCM scopes, int page_count,
81 String creator = gnu_lilypond_version_string ();
82 creator += " (http://lilypond.org)";
84 String time_stamp = ctime (&t);
85 time_stamp = time_stamp.left_string (time_stamp.length () - 1)
87 output_scheme (scm_list_n (ly_symbol2scm ("header"),
88 scm_makfrom0str (creator.to_str0 ()),
89 scm_makfrom0str (time_stamp.to_str0 ()),
91 scm_int2num (page_count),
92 ly_bool2scm (is_classic),
95 output_metadata (paper, scopes);
96 output_music_output_def (paper);
98 output_scheme (scm_list_1 (ly_symbol2scm ("header-end")));
100 /* TODO: maybe have Scheme extract the fonts directly from \paper ?
102 Alternatively, we could simply load the fonts on demand in the
103 output, and do away with this define-fonts step. */
104 SCM fonts = paper->font_descriptions ();
105 output_scheme (scm_list_3 (ly_symbol2scm ("define-fonts"),
108 ly_quote_scm (ly_list_qsort_uniq_x (fonts))));
112 Paper_outputter::output_line (SCM line, Offset *origin, bool is_last)
114 Paper_line *p = unsmob_paper_line (line);
115 Offset dim = p->dim ();
116 if (dim[Y_AXIS] > 50 CM)
118 programming_error (to_string ("Improbable line height: %f",
123 output_scheme (scm_list_3 (ly_symbol2scm ("start-system"),
124 ly_quote_scm (ly_offset2scm (*origin)),
125 ly_quote_scm (ly_offset2scm (dim))));
127 output_stencil (*unsmob_stencil (p->to_stencil ()));
129 (*origin)[Y_AXIS] += dim[Y_AXIS];
130 output_scheme (scm_list_2 (ly_symbol2scm ("stop-system"),
131 ly_bool2scm (is_last)));
135 Paper_outputter::output_page (Page *p, bool is_last)
137 output_scheme (scm_list_1 (ly_symbol2scm ("start-page")));
139 output_scheme (scm_list_3 (ly_symbol2scm ("start-system"),
140 ly_quote_scm (ly_offset2scm (Offset (0, 0))),
141 ly_quote_scm (ly_offset2scm (Offset (0, 0)))));
143 output_stencil (*unsmob_stencil (p->to_stencil ()));
145 output_scheme (scm_list_2 (ly_symbol2scm ("stop-system"), SCM_BOOL_T));
146 output_scheme (scm_list_2 (ly_symbol2scm ("stop-page"),
148 && !unsmob_stencil (p->footer_))));
152 Paper_outputter::output_music_output_def (Music_output_def *odef)
154 output_scheme (scm_list_2 (ly_symbol2scm ("output-paper-def"),
160 paper_outputter_dump (void * po, SCM x)
162 Paper_outputter * me = (Paper_outputter*) po;
163 me->output_scheme (x);
168 Paper_outputter::output_stencil (Stencil stil)
170 interpret_stencil_expr (stil.expr (), paper_outputter_dump,
171 (void*) this, Offset (0,0));