5 #include "paper-def.hh"
7 LY_DEFINE(ly_set_grob_property,"ly-set-grob-property", 3, 0, 0,
8 (SCM grob, SCM sym, SCM val),
9 "Set @var{sym} in grob @var{grob} to value @var{val}")
11 Grob * sc = unsmob_grob (grob);
12 SCM_ASSERT_TYPE(sc, grob, SCM_ARG1, __FUNCTION__, "grob");
13 SCM_ASSERT_TYPE(gh_symbol_p(sym), sym, SCM_ARG2, __FUNCTION__, "symbol");
15 if (!type_check_assignment (sym, val, ly_symbol2scm ("backend-type?")))
16 error ("typecheck failed");
18 sc->internal_set_grob_property (sym, val);
19 return SCM_UNSPECIFIED;
22 LY_DEFINE(ly_get_grob_property,
23 "ly-get-grob-property", 2, 0, 0, (SCM grob, SCM sym),
24 " Get the value of a value in grob @var{g} of property @var{sym}. It
25 will return @code{'()} (end-of-list) if @var{g} doesn't have @var{sym} set.
28 Grob * sc = unsmob_grob (grob);
29 SCM_ASSERT_TYPE(sc, grob, SCM_ARG1, __FUNCTION__, "grob");
30 SCM_ASSERT_TYPE(gh_symbol_p(sym), sym, SCM_ARG2, __FUNCTION__, "symbol");
32 return sc->internal_get_grob_property (sym);
35 LY_DEFINE(spanner_get_bound, "ly-get-spanner-bound", 2 , 0, 0,
37 "Get one of the bounds of @var{spanner}. @var{dir} may be @code{-1} for
38 left, and @code{1} for right.
41 Spanner * sl = dynamic_cast<Spanner*> (unsmob_grob (slur));
42 SCM_ASSERT_TYPE(sl, slur, SCM_ARG1, __FUNCTION__, "spanner grob");
43 SCM_ASSERT_TYPE(ly_dir_p (dir), slur, SCM_ARG2, __FUNCTION__, "dir");
44 return sl->get_bound (to_dir (dir))->self_scm ();
47 LY_DEFINE(ly_get_paper_var,"ly-get-paper-variable", 2, 0, 0,
49 "Get a variable from the \\paper block.")
51 Grob * sc = unsmob_grob (grob);
52 SCM_ASSERT_TYPE(sc, grob, SCM_ARG1, __FUNCTION__, "grob");
53 SCM_ASSERT_TYPE(gh_symbol_p(sym), sym, SCM_ARG2, __FUNCTION__, "symbol");
55 return sc->paper_l() ->get_scmvar_scm (sym);
60 LY_DEFINE(ly_get_extent, "ly-get-extent", 3, 0, 0,
61 (SCM grob, SCM refp, SCM axis),
62 "Get the extent in @var{axis} direction of @var{grob} relative to the
65 Grob * sc = unsmob_grob (grob);
66 Grob * ref = unsmob_grob (refp);
67 SCM_ASSERT_TYPE(sc, grob, SCM_ARG1, __FUNCTION__, "grob");
68 SCM_ASSERT_TYPE(ref, refp, SCM_ARG2, __FUNCTION__, "grob");
70 SCM_ASSERT_TYPE(ly_axis_p(axis), axis, SCM_ARG3, __FUNCTION__, "axis");
72 return ly_interval2scm ( sc->extent (ref, Axis (gh_scm2int (axis))));
75 LY_DEFINE (ly_get_parent, "ly-get-parent", 2, 0, 0, (SCM grob, SCM axis),
76 "Get the parent of @var{grob}. @var{axis} can be 0 for the X-axis, 1
79 Grob * sc = unsmob_grob (grob);
80 SCM_ASSERT_TYPE(sc, grob, SCM_ARG1, __FUNCTION__, "grob");
81 SCM_ASSERT_TYPE(ly_axis_p(axis), axis, SCM_ARG2, __FUNCTION__, "axis");
83 return sc->get_parent (Axis (gh_scm2int (axis)))->self_scm();