+/*
+ script-interface.cc -- implement Script_interface
+
+ source file of the GNU LilyPond music typesetter
+
+ (c) 1999--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+
+ */
+
+#include "directional-element-interface.hh"
+#include "warn.hh"
+#include "script-interface.hh"
+#include "font-interface.hh"
+#include "side-position-interface.hh"
+#include "output-def.hh"
+#include "item.hh"
+#include "stencil.hh"
+#include "lookup.hh"
+#include "stem.hh"
+#include "note-column.hh"
+
+Stencil
+Script_interface::get_stencil (Grob *me, Direction d)
+{
+ SCM s = me->get_property ("script-stencil");
+ assert (ly_c_pair_p (s));
+
+ SCM key = ly_car (s);
+ if (key == ly_symbol2scm ("feta"))
+ {
+ SCM name_entry = ly_cdr (s);
+ SCM str = ((ly_c_pair_p (name_entry)) ? index_get_cell (name_entry, d)
+ : name_entry);
+ return Font_interface::get_default_font (me)
+ ->find_by_name ("scripts-" + ly_scm2string (str));
+ }
+ else if (key == ly_symbol2scm ("accordion"))
+ return Lookup::accordion (ly_cdr (s), 1.0,
+ Font_interface::get_default_font (me));
+ else
+ assert (false);
+
+ return Stencil ();
+}
+
+MAKE_SCHEME_CALLBACK (Script_interface, before_line_breaking, 1);
+SCM
+Script_interface::before_line_breaking (SCM smob)
+{
+ Grob *me = unsmob_grob (smob);
+
+ Direction d = Side_position_interface::get_direction (me);
+
+ if (!d)
+ {
+ /* FIXME: This should never happen: `arbitrary' directions. */
+ programming_error ("Script direction not yet known!");
+ d = DOWN;
+ }
+
+ set_grob_direction (me, d);
+
+ if (Grob *par = me->get_parent (X_AXIS))
+ {
+ Grob *stem = Note_column::get_stem (par);
+ if (stem && Stem::first_head (stem))
+ me->set_parent (Stem::first_head (stem), X_AXIS);
+ }
+ return SCM_UNSPECIFIED;
+}
+
+MAKE_SCHEME_CALLBACK (Script_interface, print, 1);
+
+SCM
+Script_interface::print (SCM smob)
+{
+ Grob *me= unsmob_grob (smob);
+
+ Direction dir = Side_position_interface::get_direction (me);
+ if (!dir)
+ {
+ programming_error ("Script direction not known, but stencil wanted.");
+ dir = DOWN;
+ }
+ return get_stencil (me, dir).smobbed_copy ();
+}
+
+struct Text_script
+{
+ static bool has_interface (Grob*);
+};
+
+ADD_INTERFACE (Text_script,"text-script-interface",
+ "An object that is put above or below a note",
+ "script-priority");
+
+ADD_INTERFACE (Script_interface, "script-interface",
+ "An object that is put above or below a note",
+ "script-priority script-stencil");
+