/*
This file is part of LilyPond, the GNU music typesetter.
- Copyright (C) 1998--2011 Jan Nieuwenhuizen <janneke@gnu.org>
+ Copyright (C) 1998--2012 Jan Nieuwenhuizen <janneke@gnu.org>
Han-Wen Nienhuys <hanwen@xs4all.nl>
LilyPond is free software: you can redistribute it and/or modify
return SCM_UNSPECIFIED;
}
+LY_DEFINE (ly_grob_pure_property, "ly:grob-pure-property",
+ 4, 1, 0, (SCM grob, SCM sym, SCM beg, SCM end, SCM val),
+ "Return the pure value for property @var{sym} of @var{grob}."
+ " If no value is found, return @var{val} or @code{'()}"
+ " if @var{val} is not specified.")
+{
+ Grob *sc = unsmob_grob (grob);
+
+ LY_ASSERT_SMOB (Grob, grob, 1);
+ LY_ASSERT_TYPE (ly_is_symbol, sym, 2);
+ LY_ASSERT_TYPE (scm_is_integer, beg, 3);
+ LY_ASSERT_TYPE (scm_is_integer, end, 4);
+ if (val == SCM_UNDEFINED)
+ val = SCM_EOL;
+
+ SCM retval = sc->internal_get_pure_property (sym, scm_to_int (beg), scm_to_int (end));
+ if (retval == SCM_EOL)
+ retval = val;
+
+ return retval;
+}
+
+LY_DEFINE (ly_grob_pure_height, "ly:grob-pure-height",
+ 4, 1, 0, (SCM grob, SCM refp, SCM beg, SCM end, SCM val),
+ "Return the pure height of @var{grob} given refpoint @var{refp}."
+ " If no value is found, return @var{val} or @code{'()}"
+ " if @var{val} is not specified.")
+{
+ Grob *sc = unsmob_grob (grob);
+ Grob *ref = unsmob_grob (refp);
+
+ LY_ASSERT_SMOB (Grob, grob, 1);
+ LY_ASSERT_SMOB (Grob, refp, 2);
+ LY_ASSERT_TYPE (scm_is_integer, beg, 3);
+ LY_ASSERT_TYPE (scm_is_integer, end, 4);
+ if (val == SCM_UNDEFINED)
+ val = SCM_EOL;
+
+ Interval retval = sc->pure_height (ref, scm_to_int (beg), scm_to_int (end));
+
+ return ly_interval2scm (retval);
+}
+
LY_DEFINE (ly_grob_property, "ly:grob-property",
2, 1, 0, (SCM grob, SCM sym, SCM val),
"Return the value for property @var{sym} of @var{grob}."
chain_callback (gr, proc, sym);
return SCM_UNSPECIFIED;
}
+
+LY_DEFINE (ly_grob_vertical_less_p, "ly:grob-vertical<?",
+ 2, 0, 0, (SCM a, SCM b),
+ "Does @var{a} lie above @var{b} on the page?")
+{
+ LY_ASSERT_SMOB (Grob, a, 1);
+ LY_ASSERT_SMOB (Grob, b, 2);
+
+ Grob *ga = unsmob_grob (a);
+ Grob *gb = unsmob_grob (b);
+
+ return ly_bool2scm (Grob::vertical_less (ga, gb));
+}