/*
- 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 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"
-#include "virtual-methods.hh"
+Prob *
+make_paper_system (SCM immutable_init)
+{
+ Prob *prob = new Prob (ly_symbol2scm ("paper-system"), immutable_init);
+ return prob;
+}
-#include "ly-smobs.icc"
+/*
+ TODO
+ it might be interesting to split off the footnotes as well, ie.
-IMPLEMENT_SMOBS (Paper_system);
-IMPLEMENT_TYPE_P (Paper_system, "ly:paper-system?");
-IMPLEMENT_DEFAULT_EQUAL_P (Paper_system);
+ 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);
-Paper_system::Paper_system (Stencil s, bool is_title)
-{
- is_title_ = is_title;
- number_ = 0;
- break_before_penalty_ = 0;
- smobify_self ();
- stencil_ = s;
- staff_refpoints_ = Interval(0,0);
-}
+ if (head == ly_symbol2scm ("delay-stencil-evaluation"))
+ {
+ // we likely need to do something here...just don't know what...
+ return SCM_EOL;
+ }
-Paper_system::~Paper_system ()
-{
-}
+ if (head == ly_symbol2scm ("combine-stencil"))
+ {
+ SCM out = SCM_EOL;
+ SCM *tail = &out;
-SCM
-Paper_system::mark_smob (SCM smob)
-{
- Paper_system *system = (Paper_system*) SCM_CELL_WORD_1 (smob);
- return system-> stencil_.expr ();
-}
+ 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));
-int
-Paper_system::print_smob (SCM smob, SCM port, scm_print_state*)
-{
- Paper_system *p = (Paper_system*) SCM_CELL_WORD_1 (smob);
- scm_puts ("#<", port);
- scm_puts (classname (p), port);
- scm_puts (" ", port);
- scm_puts (to_string (p->number_).to_str0 (), port);
- scm_puts ("p ", port);
- scm_puts (to_string (p->break_before_penalty_).to_str0 (), port);
- if (p->is_title ())
- scm_puts (" t", port);
- scm_puts (" >", port);
- return 1;
-}
+ if (head == ly_symbol2scm ("footnote"))
+ return scm_list_1 (scm_cdr (expr));
-bool
-Paper_system::is_title () const
-{
- return is_title_;
+ return SCM_EOL;
}
-Real
-Paper_system::break_before_penalty () const
+void
+paper_system_set_stencil (Prob *prob, Stencil s)
{
- return break_before_penalty_;
-}
+ SCM yext = prob->get_property ("Y-extent");
-Stencil
-Paper_system::to_stencil () const
-{
- return stencil_;
+ 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 ());
}