source file of the GNU LilyPond music typesetter
- (c) 2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ (c) 2005--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
struct Enclosing_bracket
{
- static bool has_interface (Grob*);
+ DECLARE_GROB_INTERFACE();
public:
DECLARE_SCHEME_CALLBACK(print, (SCM));
+ DECLARE_SCHEME_CALLBACK(width, (SCM));
};
ADD_INTERFACE(Enclosing_bracket,
- "enclosing-bracket-interface",
+
"Brackets alongside bass figures.",
/* props */
"bracket-flare "
- "shorten-pair "
"edge-height "
+ "elements "
"padding "
+ "shorten-pair "
"thickness "
- "elements "
);
/* ugh: should make bracket interface. */
+MAKE_SCHEME_CALLBACK (Enclosing_bracket, width, 1);
+SCM
+Enclosing_bracket::width (SCM grob)
+{
+ /*
+ UGH. cut & paste code.
+ */
+ Grob *me = unsmob_grob (grob);
+ extract_grob_set (me, "elements", elements);
+ if (elements.empty ())
+ {
+ me->suicide ();
+ return SCM_EOL;
+ }
+
+ Grob *common_x = common_refpoint_of_array (elements, me, X_AXIS);
+ Interval xext = Axis_group_interface::relative_group_extent (elements, common_x, X_AXIS);
+
+ Stencil left_br = Horizontal_bracket::make_bracket (me, 10.0, Y_AXIS, LEFT);
+ Stencil right_br = Horizontal_bracket::make_bracket (me, 10.0, Y_AXIS, LEFT);
+
+
+ xext.widen (robust_scm2double (me->get_property ("padding"), 0.25));
+ left_br.translate_axis (xext[LEFT], X_AXIS);
+ right_br.translate_axis (xext[RIGHT], X_AXIS);
+
+ left_br.add_stencil (right_br);
+ left_br.translate_axis (-me->relative_coordinate (common_x, X_AXIS), X_AXIS);
+
+ return ly_interval2scm (left_br.extent (X_AXIS));
+}
+
MAKE_SCHEME_CALLBACK (Enclosing_bracket, print, 1);
SCM
Enclosing_bracket::print (SCM grob)
{
Grob *me = unsmob_grob (grob);
extract_grob_set (me, "elements", elements);
- if (elements.is_empty ())
+ if (elements.empty ())
{
me->suicide ();
return SCM_EOL;