2 enclosing-bracket.cc -- implement Enclosing_bracket
4 source file of the GNU LilyPond music typesetter
6 (c) 2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
11 #include "horizontal-bracket.hh"
13 #include "axis-group-interface.hh"
14 #include "pointer-group-interface.hh"
16 struct Enclosing_bracket
18 static bool has_interface (Grob*);
21 DECLARE_SCHEME_CALLBACK(print, (SCM));
25 ADD_INTERFACE(Enclosing_bracket,
26 "enclosing-bracket-interface",
27 "Brackets alongside bass figures.",
38 /* ugh: should make bracket interface. */
41 MAKE_SCHEME_CALLBACK (Enclosing_bracket, print, 1);
43 Enclosing_bracket::print (SCM grob)
45 Grob *me = unsmob_grob (grob);
46 extract_grob_set (me, "elements", elements);
47 if (elements.is_empty ())
53 Grob *common_x = common_refpoint_of_array (elements, me, X_AXIS);
54 Interval xext = Axis_group_interface::relative_group_extent (elements, common_x, X_AXIS);
57 Stencil left_br = Horizontal_bracket::make_enclosing_bracket (me, me, elements,
59 Stencil right_br = Horizontal_bracket::make_enclosing_bracket (me, me, elements,
62 xext.widen (robust_scm2double (me->get_property ("padding"), 0.25));
63 left_br.translate_axis (xext[LEFT], X_AXIS);
64 right_br.translate_axis (xext[RIGHT], X_AXIS);
66 left_br.add_stencil (right_br);
67 left_br.translate_axis (-me->relative_coordinate (common_x, X_AXIS), X_AXIS);
69 return left_br.smobbed_copy ();