- Spanner *me = dynamic_cast<Spanner*> (me_grob);
- if (!head (me, LEFT) && !head (me, RIGHT))
- {
- programming_error ("tie without heads");
- me->suicide ();
- return ;
- }
-
- /*
- UGH. Don't mirror Tie_configuration.
- */
- conf->head_position_ = (int) Tie::get_position (me);
- if (!conf->dir_)
- conf->dir_ = get_grob_direction (me);
- if (!conf->dir_)
- conf->dir_ = get_default_dir (me);
-
-
- Real staff_space = details.staff_space_;
- bool in_between = true;
- Real gap = robust_scm2double (me->get_property ("x-gap"), 0.2);
-
- if (conf->attachment_x_.is_empty())
- {
- if (!skylines)
- conf->attachment_x_ = get_default_attachments (me, common, gap,
- &conf->position_,
- &in_between);
- else
- {
- Real y = staff_space * 0.5 * conf->position_;
- conf->attachment_x_ = get_skyline_attachment (*skylines, y);
- conf->attachment_x_.widen (-gap);
- }
- }
-
- Bezier b = slur_shape (conf->attachment_x_.length(),
- details.height_limit_,
- details.ratio_);
- b.scale (1, conf->dir_);
-
- Offset middle = b.curve_point (0.5);
- Offset edge = b.curve_point (0.0);
-
- conf->position_ = int (rint (conf->position_));
-
- Real dy = fabs (middle[Y_AXIS] - edge[Y_AXIS]);
- bool in_space = !(Staff_symbol_referencer::on_staffline (me, (int) conf->position_));
- bool fits_in_space =
- (dy < 0.6 * staff_space);
-
- /*
- Avoid dot
- */
- Grob *left_dot = unsmob_grob (me->get_bound (LEFT)->get_object ("dot"));
- int dot_pos = left_dot
- ? int (Staff_symbol_referencer::get_position (left_dot))
- : 0;
- if (left_dot
- && (conf->position_ == dot_pos
- || conf->position_ + conf->dir_ == dot_pos))
- {
- conf->position_ += conf->dir_;
- in_space = !in_space;
-
- if (skylines)
- {
- Real y = staff_space * 0.5 * conf->position_;
- conf->attachment_x_ = get_skyline_attachment (*skylines, y);
- conf->attachment_x_.widen (-gap);
- Bezier b = slur_shape (conf->attachment_x_.length(),
- details.height_limit_,
- details.ratio_);
- Offset middle = b.curve_point (0.5);
- Offset edge = b.curve_point (0.0);
- dy = fabs (middle[Y_AXIS] - edge[Y_AXIS]);
- fits_in_space =
- (dy < 0.6 * staff_space);
- }
- }
-
- /*
- Avoid flag.
- */
- Grob *left_stem = unsmob_grob (me->get_bound (LEFT)->get_object ("stem"));
- if (left_stem)
- {
- Stencil flag = Stem::get_translated_flag (left_stem);
- Real y = conf->position_ * staff_space * 0.5;
- if (flag.extent (Y_AXIS).contains (y))
- {
- conf->position_ += conf->dir_;
- in_space = !in_space;
- }
- }
-
- if (in_space != fits_in_space)
- {
- if (in_space)
- {
- conf->position_ += conf->dir_;
- }
- else
- {
- in_space = true;
- conf->position_ += conf->dir_;
- }
-
- /*
- ugh: code dup.
- */
- if (skylines)
- {
- Real y = staff_space * 0.5 * conf->position_;
- conf->attachment_x_ = get_skyline_attachment (*skylines, y);
- conf->attachment_x_.widen (-gap);
-
- Bezier b = slur_shape (conf->attachment_x_.length(),
- details.height_limit_,
- details.ratio_);
- Offset middle = b.curve_point (0.5);
- Offset edge = b.curve_point (0.0);
- dy = fabs (middle[Y_AXIS] - edge[Y_AXIS]);
- fits_in_space =
- (dy < 0.6 * staff_space);
- }
- }
-
-
- /*
- Putting larger in-space ties next to the notes forces
- the edges to be opposite (Y-wise) to the tie direction.
- */
- if (conf->position_ == conf->head_position_
- && in_space
- && Staff_symbol_referencer::staff_radius (me) > fabs (conf->position_) / 2
- && dy > 0.3 * staff_space)
- {
- conf->position_ += 2 * conf->dir_;
- }
-
- if (!in_between
- && in_space
- && fabs (conf->position_ - conf->head_position_) <= 1)
- conf->position_ += 2*conf->dir_;
-
-
- if (in_space)