2 score-engraver.cc -- implement Score_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
11 #include "line-of-score.hh"
13 #include "score-engraver.hh"
14 #include "paper-score.hh"
15 #include "musical-request.hh"
16 #include "paper-column.hh"
17 #include "command-request.hh"
18 #include "paper-def.hh"
19 #include "axis-group-interface.hh"
21 Score_engraver::Score_engraver()
31 Score_engraver::prepare (Moment w
)
33 Global_translator::prepare (w
);
35 SCM props
= get_property (ly_symbol2scm ("basicPaperColumnProperties"));
36 set_columns (new Paper_column (props
), new Paper_column (props
));
38 command_column_l_
->set_elt_property ("when", w
.make_scm());
39 musical_column_l_
->set_elt_property ("when", w
.make_scm());
40 command_column_l_
->set_elt_property ("breakable", SCM_BOOL_T
);
42 Score_element_info
i1(command_column_l_
, 0), i2 (musical_column_l_
,0);
44 i1
.origin_trans_l_
= this;
45 i2
.origin_trans_l_
= this;
46 announce_element (i1
);
47 announce_element (i2
);
49 post_move_processing();
53 Score_engraver::finish()
56 progress_indication ("[" + to_str ( breaks_i_
) + "]");
66 Score_engraver::do_creation_processing ()
68 scoreline_l_
= pscore_p_
->line_l_
;
70 scoreline_l_
->set_bound(LEFT
, command_column_l_
);
72 command_column_l_
->set_elt_property ("breakable", SCM_BOOL_T
);
74 Engraver_group_engraver::do_creation_processing();
79 Score_engraver::do_removal_processing()
81 Engraver_group_engraver::do_removal_processing();
82 scoreline_l_
->set_bound(RIGHT
,command_column_l_
);
83 command_column_l_
->set_elt_property ("breakable", SCM_BOOL_T
);
93 Score_engraver::process()
97 pre_move_processing();
102 Score_engraver::announce_element (Score_element_info info
)
104 announce_info_arr_
.push (info
);
105 pscore_p_
->line_l_
->typeset_element (info
.elem_l_
);
108 /* All elements are propagated to the top upon announcement. If
109 something was created during one run of
110 Engraver_group_engraver::do_announces, then
111 announce_info_arr_.size() will be nonzero again
113 /* junkme? Done by Engraver_group_engraver::do_announces ()?
117 Score_engraver::do_announces()
119 while (announce_info_arr_
.size())
120 Engraver_group_engraver::do_announces();
125 Score_engraver::typeset_element (Score_element
*elem_p
)
127 elem_p_arr_
.push (elem_p
);
132 Score_engraver::typeset_all()
134 for (int i
=0; i
< elem_p_arr_
.size(); i
++)
136 Score_element
* elem_p
= elem_p_arr_
[i
];
137 elem_p
->add_processing ();
140 if (Spanner
*s
= dynamic_cast <Spanner
*> (elem_p
))
143 do something sensible if spanner not
148 if (!s
->get_bound (d
))
150 s
->set_bound(d
, command_column_l_
);
151 ::warning (_f ("unbound spanner `%s'", classname(s
)));
153 } while (flip(&d
) != LEFT
);
157 if (!elem_p
->parent_l (X_AXIS
))
159 bool br
= to_boolean (elem_p
->get_elt_property ("breakable"));
160 Axis_group_interface::add_element (br
? command_column_l_
: musical_column_l_
, elem_p
);
164 if (!elem_p
->parent_l(Y_AXIS
))
165 Axis_group_interface::add_element (scoreline_l_
, elem_p
);
171 Score_engraver::do_pre_move_processing()
173 if (to_boolean (command_column_l_
->get_elt_property ("breakable")))
177 progress_indication ("[" + to_str ( breaks_i_
) + "]");
179 // this generates all items.
180 Engraver_group_engraver::do_pre_move_processing();
186 Score_engraver::set_columns (Paper_column
*new_command_l
,
187 Paper_column
*new_musical_l
)
189 Paper_column
* news
[] = {new_command_l
, new_musical_l
};
190 Paper_column
**current
[] = {&command_column_l_
, &musical_column_l_
};
192 for (int i
=00; i
< 2; i
++)
196 scoreline_l_
->add_column ((*current
[i
]));
197 if (!Paper_column::used_b (*current
[i
]))
199 (*current
[i
])->suicide ();
204 *current
[i
] = news
[i
];
208 set_property ("currentMusicalColumn", new_musical_l
->self_scm ());
210 set_property ("currentCommandColumn", new_command_l
->self_scm ());
214 Score_engraver::get_output_p ()
216 Music_output
* o
= pscore_p_
;
222 Score_engraver::do_try_music (Music
*r
)
224 bool gotcha
= Engraver_group_engraver::do_try_music (r
);
228 if (Break_req
* b
= dynamic_cast<Break_req
*> (r
))
233 SCM pen
= command_column_l_
->get_elt_property ("penalty");
234 Real total_penalty
= gh_number_p (pen
)
238 total_penalty
+= b
->penalty_f_
;
239 if (b
->penalty_f_
> 10000.0) // ugh. arbitrary.
242 command_column_l_
->set_elt_property ("penalty",
243 gh_double2scm (total_penalty
));
250 Score_engraver::forbid_breaks ()
255 command_column_l_
->remove_elt_property ("breakable");
258 ADD_THIS_TRANSLATOR(Score_engraver
);
261 Score_engraver::do_add_processing ()
263 Translator_group::do_add_processing ();
264 assert (dynamic_cast<Paper_def
*> (output_def_l_
));
265 assert (!daddy_trans_l_
);
266 pscore_p_
= new Paper_score
;
267 pscore_p_
->paper_l_
= dynamic_cast<Paper_def
*>(output_def_l_
);
269 SCM props
= get_property(ly_symbol2scm ("basicLineOfScoreProperties"));
271 pscore_p_
->typeset_line (new Line_of_score (props
));