source file of the GNU LilyPond music typesetter
(c) 1998--2000 Jan Nieuwenhuizen <janneke@gnu.org>
+ Han-Wen Nienhuys
*/
-/*
- TODO: too complicated implementation. Why the dx_drul?.
- */
-
-#
#include "dimension-cache.hh"
#include "box.hh"
#include "debug.hh"
#include "paper-def.hh"
#include "extender-spanner.hh"
-Lyric_extender::Lyric_extender (SCM s)
- : Spanner (s)
-
-{
- dx_f_drul_[LEFT] = dx_f_drul_[RIGHT] = 0.0;
- set_extent_callback (Score_element::point_dimension_callback, Y_AXIS);
-}
-
-
-
-MAKE_SCHEME_SCORE_ELEMENT_CALLBACKS(Lyric_extender)
-Molecule
-Lyric_extender::do_brew_molecule () const
+MAKE_SCHEME_SCORE_ELEMENT_NON_DEFAULT_CALLBACKS(Lyric_extender)
+SCM
+Lyric_extender::scheme_molecule (SCM smob)
{
- Molecule mol;
-
- Real w = spanner_length ();
+ Spanner *sp = dynamic_cast<Spanner*> (unsmob_element (smob));
- w += (dx_f_drul_[RIGHT] - dx_f_drul_[LEFT]);
- Real h = paper_l ()->get_var ("extender_height");
- Molecule a = lookup_l ()->filledbox ( Box (Interval (0,w), Interval (0,h)));
- a.translate (Offset (dx_f_drul_[LEFT], 0));
-
- mol.add_molecule (a);
-
- return mol;
+ Real leftext = sp->get_bound (LEFT)->extent (X_AXIS).length ();
+ Real ss = sp->paper_l ()->get_var ("staffspace");
+ Real w = sp->spanner_length () - leftext - ss/2;
+
+ Real h = sp->paper_l ()->get_var ("extender_height");
+ Molecule mol (sp->lookup_l ()->filledbox ( Box (Interval (0,w), Interval (0,h))));
+ mol.translate (Offset (leftext, 0));
+ return mol.create_scheme();
}
-
-
void
-Lyric_extender::after_line_breaking ()
+Lyric_extender::set_textitem (Direction d, Item* textitem_l)
{
- // UGH
- Real gap = paper_l ()->get_var ("interline");
-
- Direction d = LEFT;
- do
- {
- Item* t = get_bound (d)
- ? get_bound (d) : get_bound ((Direction)-d);
- if (d == LEFT)
- dx_f_drul_[d] += t->extent (X_AXIS).length ();
- else
- dx_f_drul_[d] -= d * gap / 2;
- }
- while (flip(&d) != LEFT);
+ elt_l_->set_bound (d, textitem_l);
+ elt_l_->add_dependency (textitem_l);
}
-
-void
-Lyric_extender::set_textitem (Direction d, Item* textitem_l)
+Lyric_extender::Lyric_extender (Spanner*s)
{
- set_bound (d, textitem_l);
- add_dependency (textitem_l);
+ elt_l_ = s;
}
-