/*
- paper-system.cc -- implement Paper_system
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 2004--2012 Jan Nieuwenhuizen <janneke@gnu.org>
- (c) 2004--2006 Jan Nieuwenhuizen <janneke@gnu.org>
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
#include "paper-system.hh"
+#include "international.hh"
#include "item.hh"
-Paper_system::Paper_system (Stencil s, SCM immutable_init)
- : Prob (immutable_init)
+Prob *
+make_paper_system (SCM immutable_init)
{
- SCM yext = get_property ("Y-extent");
+ Prob *prob = new Prob (ly_symbol2scm ("paper-system"), immutable_init);
+ return prob;
+}
- if (is_number_pair (yext))
+/*
+ TODO
+ it might be interesting to split off the footnotes as well, ie.
+
+ get_footnotes(SCM expr, SCM* footnotes, SCM* cleaned)
+
+ by doing it this way and overwriting the old expr in the caller,
+ you can make sure nobody tries to handle footnotes differently
+ downstream.
+*/
+SCM
+get_footnotes (SCM expr)
+{
+ if (!scm_is_pair (expr))
+ return SCM_EOL;
+
+ SCM head = scm_car (expr);
+
+ if (head == ly_symbol2scm ("delay-stencil-evaluation"))
{
-
- Box b = s.extent_box();
- b[Y_AXIS] = ly_scm2interval (yext);
+ // we likely need to do something here...just don't know what...
+ return SCM_EOL;
+ }
- s = Stencil (b, s.expr ());
+ if (head == ly_symbol2scm ("combine-stencil"))
+ {
+ SCM out = SCM_EOL;
+ SCM *tail = &out;
+
+ for (SCM x = scm_cdr (expr); scm_is_pair (x); x = scm_cdr (x))
+ {
+ SCM footnote = get_footnotes (scm_car (x));
+ if (SCM_EOL != footnote)
+ {
+ *tail = scm_cons (footnote, SCM_EOL);
+ tail = SCM_CDRLOC (*tail);
+ }
+ }
+ return scm_append (out);
}
+ if (head == ly_symbol2scm ("translate-stencil"))
+ return get_footnotes (scm_caddr (expr));
- set_property ("stencil", s.smobbed_copy ());
-}
+ if (head == ly_symbol2scm ("footnote"))
+ return scm_list_1 (scm_cdr (expr));
-Paper_system *
-unsmob_paper_system (SCM x)
-{
- Prob *prob = unsmob_prob (x);
- return dynamic_cast<Paper_system*> (prob);
+ return SCM_EOL;
}
-LY_DEFINE(ly_paper_system_p, "ly:paper-system?",
- 1,0,0, (SCM obj),
- "Type predicate.")
+void
+paper_system_set_stencil (Prob *prob, Stencil s)
{
- return scm_from_bool (unsmob_paper_system (obj));
+ SCM yext = prob->get_property ("Y-extent");
+
+ if (is_number_pair (yext))
+ {
+ Box b = s.extent_box ();
+ b[Y_AXIS] = ly_scm2interval (yext);
+
+ s = Stencil (b, s.expr ());
+ }
+
+ prob->set_property ("stencil", s.smobbed_copy ());
}