2 ambitus.cc -- implement Ambitus
4 source file of the GNU LilyPond music typesetter
6 (c) 2002--2005 Juergen Reuter <reuter@ipd.uka.de>
11 #include "staff-symbol-referencer.hh"
13 #include "note-head.hh"
15 #include "font-interface.hh"
16 #include "output-def.hh"
18 #include "group-interface.hh"
20 MAKE_SCHEME_CALLBACK (Ambitus, print, 1);
22 Ambitus::print (SCM smob)
24 Item *me = (Item *) unsmob_grob (smob);
28 Link_array<Grob> heads (extract_grob_array (me, ly_symbol2scm ("note-heads")));
29 if (to_boolean (me->get_property ("join-heads"))
33 = common_refpoint_of_array (heads.slice (0, 2), me, Y_AXIS);
35 Grob *minh = heads[0];
36 Grob *maxh = heads[1];
38 if (minh->relative_coordinate (common, Y_AXIS)
39 > maxh->relative_coordinate (common, Y_AXIS))
47 Real pmax = maxh->extent (common, Y_AXIS)[DOWN] - pad;
48 Real pmin = minh->extent (common, Y_AXIS)[UP] + pad;
52 Real linethickness = me->get_layout ()->get_dimension (ly_symbol2scm ("linethickness"))
53 * robust_scm2double (me->get_property ("thickness"), 1.0);
54 Real blotdiameter = me->get_layout ()->get_dimension (ly_symbol2scm ("blotdiameter"));
55 Interval x_extent = 0.5 * linethickness * Interval (-1, 1);
56 Interval y_extent = Interval (pmin, pmax);
57 Box line_box (x_extent, y_extent);
59 Stencil line = Lookup::round_filled_box (line_box, blotdiameter);
60 line.translate_axis (- me->relative_coordinate (common, Y_AXIS),
62 return line.smobbed_copy ();
69 ADD_INTERFACE (Ambitus, "ambitus-interface",
70 "The line between note heads for a pitch range.",
71 "thickness note-heads join-heads");