/*
- paper-system-scheme.cc -- implement Paper_system bindings
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 2008--2015 Han-Wen Nienhuys <hanwen@lilypond.org>
- (c) 2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
-
-*/
-
-#include "paper-system.hh"
-
-LY_DEFINE (ly_paper_system_height, "ly:paper-system-extent",
- 2, 0, 0, (SCM system, SCM axis),
- "Return the extent of @var{system}.")
-{
- Paper_system *ps = unsmob_paper_system (system);
- SCM_ASSERT_TYPE (ps, system, SCM_ARG1, __FUNCTION__, "paper-system");
- SCM_ASSERT_TYPE (is_axis (axis), axis, SCM_ARG2, __FUNCTION__, "axis");
- Axis ax = (Axis)scm_to_int (axis);
- return ly_interval2scm (ps->to_stencil().extent (ax));
-}
+ 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.
-LY_DEFINE (ly_paper_system_title_p, "ly:paper-system-title?",
- 1, 0, 0, (SCM system),
- "Is @var{system} a title system?")
-{
- Paper_system *ps = unsmob_paper_system (system);
- SCM_ASSERT_TYPE (ps, system, SCM_ARG1, __FUNCTION__, "paper-system");
- return SCM_BOOL (ps->is_title ());
-}
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
+*/
-LY_DEFINE (ly_paper_system_number, "ly:paper-system-number",
- 1, 0, 0, (SCM system),
- "Return the number of @var{system}.")
-{
- Paper_system *ps = unsmob_paper_system (system);
- SCM_ASSERT_TYPE (ps, system, SCM_ARG1, __FUNCTION__, "paper-system");
- return scm_int2num (ps->number_);
-}
+#include "prob.hh"
-LY_DEFINE (ly_paper_system_break_before_penalty, "ly:paper-system-break-before-penalty",
- 1, 0, 0, (SCM system),
- "Return the score for page break after @var{system}.")
-{
- Paper_system *ps = unsmob_paper_system (system);
- SCM_ASSERT_TYPE (ps, system, SCM_ARG1, __FUNCTION__, "paper-system");
- return scm_int2num (int (ps->break_before_penalty ()));
-}
+#include "skyline-pair.hh"
-LY_DEFINE (ly_paper_system_stencil, "ly:paper-system-stencil",
- 1, 0, 0, (SCM system),
- "Return the height of @var{system}.")
+LY_DEFINE (ly_paper_system_p, "ly:paper-system?",
+ 1, 0, 0, (SCM obj),
+ "Is @var{obj} a C++ @code{Prob} object of type"
+ " @code{paper-system}?")
{
- Paper_system *ps = unsmob_paper_system (system);
- SCM_ASSERT_TYPE (ps, system, SCM_ARG1, __FUNCTION__, "paper-system");
- return ps->to_stencil ().smobbed_copy ();
+ return ly_prob_type_p (obj, ly_symbol2scm ("paper-system"));
}
-
-
-LY_DEFINE (ly_paper_system_staff_extent, "ly:paper-system-staff-extents",
- 1, 0, 0, (SCM system),
- "Return the top and bottom staff refpoint.")
+LY_DEFINE (ly_paper_system_minimum_distance, "ly:paper-system-minimum-distance",
+ 2, 0, 0, (SCM sys1, SCM sys2),
+ "Measure the minimum distance between these two paper-systems,"
+ " using their stored skylines if possible and falling back to"
+ " their extents otherwise.")
{
- Paper_system *ps = unsmob_paper_system (system);
- SCM_ASSERT_TYPE (ps, system, SCM_ARG1, __FUNCTION__, "paper-system");
- return ly_interval2scm (ps->staff_refpoints_);
+ Real ret = 0;
+ Prob *p1 = Prob::unsmob (sys1);
+ Prob *p2 = Prob::unsmob (sys2);
+ Skyline_pair *sky1 = Skyline_pair::unsmob (p1->get_property ("vertical-skylines"));
+ Skyline_pair *sky2 = Skyline_pair::unsmob (p2->get_property ("vertical-skylines"));
+
+ if (sky1 && sky2)
+ ret = (*sky1)[DOWN].distance ((*sky2)[UP]);
+ else
+ {
+ Stencil *s1 = Stencil::unsmob (p1->get_property ("stencil"));
+ Stencil *s2 = Stencil::unsmob (p2->get_property ("stencil"));
+ Interval iv1 = s1->extent (Y_AXIS);
+ Interval iv2 = s2->extent (Y_AXIS);
+ ret = iv2[UP] - iv1[DOWN];
+ }
+ return scm_from_double (ret);
}
-