/*
- paper-system.cc -- implement Paper_system
+ paper-system.cc -- implement Prob functions for paper-system
source file of the GNU LilyPond music typesetter
- (c) 2004 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 2004--2008 Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include "paper-system.hh"
+#include "item.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);
-
-
-
-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);
-}
-
-Paper_system::~Paper_system ()
-{
-}
-
-SCM
-Paper_system::mark_smob (SCM smob)
-{
- Paper_system *system = (Paper_system*) SCM_CELL_WORD_1 (smob);
- return system-> stencil_.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;
-}
-
-bool
-Paper_system::is_title () const
-{
- return is_title_;
-}
-
-Real
-Paper_system::break_before_penalty () const
+Prob *
+make_paper_system (SCM immutable_init)
{
- return break_before_penalty_;
+ Prob *prob = new Prob (ly_symbol2scm ("paper-system"), immutable_init);
+ return prob;
}
-Stencil
-Paper_system::to_stencil () const
+void
+paper_system_set_stencil (Prob *prob, Stencil s)
{
- return stencil_;
-}
-
-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));
-}
-
-
-
-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 ());
-}
-
-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_);
-}
-
-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 ()));
-}
-
-LY_DEFINE (ly_paper_system_stencil, "ly:paper-system-stencil",
- 1, 0, 0, (SCM system),
- "Return the height of @var{system}.")
-{
- Paper_system *ps = unsmob_paper_system (system);
- SCM_ASSERT_TYPE (ps, system, SCM_ARG1, __FUNCTION__, "paper-system");
- return ps->to_stencil ().smobbed_copy ();
-}
+ 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 ());
+ }
-LY_DEFINE (ly_paper_system_staff_extent, "ly:paper-system-staff-extents",
- 1, 0, 0, (SCM system),
- "Return the top and bottom staff refpoint.")
-{
- Paper_system *ps = unsmob_paper_system (system);
- SCM_ASSERT_TYPE (ps, system, SCM_ARG1, __FUNCTION__, "paper-system");
- return ly_interval2scm (ps->staff_refpoints_);
+ prob->set_property ("stencil", s.smobbed_copy ());
}
-