2 horizontal-bracket.cc -- implement Horizontal_bracket
4 source file of the GNU LilyPond music typesetter
6 (c) 2002--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #include "side-position-interface.hh"
12 #include "group-interface.hh"
13 #include "directional-element-interface.hh"
14 #include "output-def.hh"
15 #include "staff-symbol-referencer.hh"
16 #include "tuplet-bracket.hh" // ugh.
18 struct Horizontal_bracket
20 DECLARE_SCHEME_CALLBACK (print, (SCM));
21 static bool has_interface (Grob*);
28 This doesn't look very elegant: should support winged edges.
30 Support texts on the brackets?
32 MAKE_SCHEME_CALLBACK (Horizontal_bracket, print, 1);
35 Horizontal_bracket::print (SCM smob)
37 Grob * me = unsmob_grob (smob);
38 Spanner *sp = dynamic_cast<Spanner*> (me);
39 Link_array<Grob> gs = Pointer_group_interface__extract_grobs (me,(Grob*)0, "columns");
46 Grob * cx = common_refpoint_of_array (gs, me, X_AXIS);
47 cx = cx->common_refpoint (sp->get_bound (LEFT), X_AXIS);
48 cx = cx->common_refpoint (sp->get_bound (RIGHT),X_AXIS);
50 Interval ext = gs.top ()->extent (cx, X_AXIS);
51 ext.unite (gs[0]->extent (cx, X_AXIS));
53 Drul_array<Real> edge_height = robust_scm2interval (me->get_property ("edge-height"),
57 Drul_array<Real> flare = robust_scm2interval (me->get_property ("bracket-flare"),
60 Drul_array<Real> shorten = robust_scm2interval (me->get_property ("shorten-pair"),
65 = Tuplet_bracket::make_bracket (me, Y_AXIS, Offset (ext.length (), 0),
66 edge_height, empty, flare, shorten);
68 b.translate_axis (ext[LEFT] - sp->get_bound (LEFT)->relative_coordinate (cx, X_AXIS), X_AXIS);
70 return b.smobbed_copy ();
73 ADD_INTERFACE (Horizontal_bracket,"horizontal-bracket-interface",
74 "A horizontal bracket encompassing notes.",
75 "columns bracket-flare shorten-pair edge-height");