/*
- 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--2015 Jan Nieuwenhuizen <janneke@gnu.org>
- (c) 2004 Jan Nieuwenhuizen <janneke@gnu.org>
-*/
-
-#include "paper-system.hh"
-#include "stencil.hh"
-#include "string.hh"
-#include "virtual-methods.hh"
-
-#include "ly-smobs.icc"
-
-IMPLEMENT_SMOBS (Paper_system);
-IMPLEMENT_TYPE_P (Paper_system, "ly:paper-system?");
-IMPLEMENT_DEFAULT_EQUAL_P (Paper_system);
+ 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/>.
+*/
-Paper_system::Paper_system (Stencil s, bool is_title)
-{
- is_title_ = is_title;
- number_ = 0;
- penalty_ = 0;
- smobify_self ();
- stencil_ = s;
-}
-
-Paper_system::~Paper_system ()
-{
-}
-
-SCM
-Paper_system::mark_smob (SCM smob)
-{
- Paper_system *line = (Paper_system*) ly_cdr (smob);
- return line-> stencil_.expr ();
-}
-
-int
-Paper_system::print_smob (SCM smob, SCM port, scm_print_state*)
-{
- Paper_system *p = (Paper_system*) ly_cdr (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->penalty_).to_str0 (), port);
- if (p->is_title ())
- scm_puts (" t", port);
- scm_puts (" >", port);
- return 1;
-}
-
-bool
-Paper_system::is_title () const
-{
- return is_title_;
-}
+#include "paper-system.hh"
+#include "international.hh"
+#include "item.hh"
-Real
-Paper_system::penalty () const
+Prob *
+make_paper_system (SCM immutable_init)
{
- return penalty_;
+ Prob *prob = new Prob (ly_symbol2scm ("paper-system"), immutable_init);
+ return prob;
}
-Offset
-Paper_system::dim () const
-{
- return Offset (stencil_.extent (X_AXIS).length (),
- stencil_.extent (Y_AXIS).length ());
-}
+/*
+ TODO
+ it might be interesting to split off the footnotes as well, ie.
-Stencil
-Paper_system::to_stencil () const
-{
- return stencil_;
-}
+ get_footnotes(SCM expr, SCM* footnotes, SCM* cleaned)
-LY_DEFINE (ly_paper_line_height, "ly:paper-system-extent",
- 2, 0, 0, (SCM line, SCM axis),
- "Return the extent of @var{line}.")
+ 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)
{
- Paper_system *pl = unsmob_paper_line (line);
- SCM_ASSERT_TYPE (pl, line, SCM_ARG1, __FUNCTION__, "paper-system");
- SCM_ASSERT_TYPE (is_axis (axis), axis, SCM_ARG2, __FUNCTION__, "axis");
- Axis ax = (Axis)ly_scm2int (axis);
- return scm_make_real (pl->dim ()[ax]);
+ if (!scm_is_pair (expr))
+ return SCM_EOL;
+
+ SCM head = scm_car (expr);
+
+ if (scm_is_eq (head, ly_symbol2scm ("delay-stencil-evaluation")))
+ {
+ // we likely need to do something here...just don't know what...
+ return SCM_EOL;
+ }
+
+ if (scm_is_eq (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_is_null (footnote))
+ {
+ *tail = scm_cons (footnote, SCM_EOL);
+ tail = SCM_CDRLOC (*tail);
+ }
+ }
+ return scm_append (out);
+ }
+ if (scm_is_eq (head, ly_symbol2scm ("translate-stencil")))
+ return get_footnotes (scm_caddr (expr));
+
+ if (scm_is_eq (head, ly_symbol2scm ("footnote")))
+ return scm_list_1 (scm_cdr (expr));
+
+ return SCM_EOL;
}
-
-
-LY_DEFINE (ly_paper_line_title_p, "ly:paper-system-title?",
- 1, 0, 0, (SCM line),
- "Is @var{line} a title line?")
+void
+paper_system_set_stencil (Prob *prob, Stencil s)
{
- Paper_system *pl = unsmob_paper_line (line);
- SCM_ASSERT_TYPE (pl, line, SCM_ARG1, __FUNCTION__, "paper-system");
- return SCM_BOOL (pl->is_title ());
-}
+ SCM yext = prob->get_property ("Y-extent");
-LY_DEFINE (ly_paper_line_number, "ly:paper-system-number",
- 1, 0, 0, (SCM line),
- "Return the number of @var{line}.")
-{
- Paper_system *pl = unsmob_paper_line (line);
- SCM_ASSERT_TYPE (pl, line, SCM_ARG1, __FUNCTION__, "paper-system");
- return scm_int2num (pl->number_);
-}
+ if (is_number_pair (yext))
+ {
+ Box b = s.extent_box ();
+ b[Y_AXIS] = ly_scm2interval (yext);
-LY_DEFINE (ly_paper_line_break_score, "ly:paper-system-break-penalty",
- 1, 0, 0, (SCM line),
- "Return the score for page break after @var{line}.")
-{
- Paper_system *pl = unsmob_paper_line (line);
- SCM_ASSERT_TYPE (pl, line, SCM_ARG1, __FUNCTION__, "paper-system");
- return scm_int2num (int (pl->penalty ()));
-}
+ s = Stencil (b, s.expr ());
+ }
-LY_DEFINE (ly_paper_line_stencil, "ly:paper-system-stencil",
- 1, 0, 0, (SCM line),
- "Return the height of @var{line}.")
-{
- Paper_system *pl = unsmob_paper_line (line);
- SCM_ASSERT_TYPE (pl, line, SCM_ARG1, __FUNCTION__, "paper-system");
- return pl->to_stencil ().smobbed_copy ();
+ prob->set_property ("stencil", s.smobbed_copy ());
}
-
projects / lilypond.git / blobdiff