source file of the GNU LilyPond music typesetter
- (c) 1996--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1996--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
Jan Nieuwenhuizen <janneke@gnu.org>
*/
void
Slur::add_column (Grob*me, Grob*n)
{
- if (!gh_pair_p (n->get_grob_property ("note-heads")))
- me->warning (_ ("Putting slur over rest."));
-
Pointer_group_interface::add_grob (me, ly_symbol2scm ("note-columns"), n);
me->add_dependency (n);
Direction
Slur::get_default_dir (Grob*me)
{
- Link_array<Grob> encompass_arr =
+ Link_array<Grob> encompasses =
Pointer_group_interface__extract_grobs (me, (Grob*)0, "note-columns");
Direction d = DOWN;
- for (int i=0; i < encompass_arr.size (); i ++)
+ for (int i=0; i < encompasses.size (); i ++)
{
- if (Note_column::dir (encompass_arr[i]) < 0)
+ if (Note_column::dir (encompasses[i]) < 0)
{
d = UP;
break;
return SCM_UNSPECIFIED;
}
set_extremities (me);
- set_control_points (me);
+ if (!gh_pair_p (me->get_grob_property ("control-points")))
+ set_control_points (me);
return SCM_UNSPECIFIED;
}
void
Slur::check_slope (Grob *me)
{
-
/*
Avoid too steep slurs.
*/
SCM s = me->get_grob_property ("slope-limit");
if (gh_number_p (s))
{
- Array<Offset> encompass = get_encompass_offset_arr (me);
+ Array<Offset> encompass = get_encompass_offsets (me);
Drul_array<Offset> attachment;
attachment[LEFT] = encompass[0];
attachment[RIGHT] = encompass.top ();
o[RIGHT] = ly_scm2offset (index_get_cell (a, RIGHT));
o[d][Y_AXIS] -= (limit - slope) * dx * dir / staff_space;
- o[d][Y_AXIS] *= Directional_element_interface::get (me);
+ o[d][Y_AXIS] *= get_grob_direction (me);
me->set_grob_property ("attachment-offset",
gh_cons (ly_offset2scm (o[LEFT]),
SCM
Slur::set_extremities (Grob *me)
{
- if (!Directional_element_interface::get (me))
- Directional_element_interface::set (me, get_default_dir (me));
+ if (!get_grob_direction (me))
+ set_grob_direction (me, get_default_dir (me));
SCM att = me->get_grob_property ("attachment");
/*
Real
-Slur::get_first_notecolumn_y (Grob *me, Direction dir)
+Slur::get_boundary_notecolumn_y (Grob *me, Direction dir)
{
SCM cols = me->get_grob_property ("note-columns");
the unbroken slur would have had.
*/
Offset o;
- if (Spanner *mother = dynamic_cast<Spanner*> (me->original_l_))
+ if (Spanner *mother = dynamic_cast<Spanner*> (me->original_))
{
- for (int i = dir == LEFT ? 0 : mother->broken_into_l_arr_.size () - 1;
- dir == LEFT ? i < mother->broken_into_l_arr_.size () : i > 0;
- dir == LEFT ? i++ : i--)
- {
- if (mother->broken_into_l_arr_[i - dir] == me)
- {
- Grob *neighbour = mother->broken_into_l_arr_[i];
- if (dir == RIGHT)
- neighbour->set_grob_property ("direction",
- me->get_grob_property ("direction"));
- Real neighbour_y = get_first_notecolumn_y (neighbour, dir);
- Real y = get_first_notecolumn_y (me, -dir);
- int neighbour_cols = scm_ilength (neighbour->get_grob_property ("note-columns"));
- int cols = scm_ilength (me->get_grob_property ("note-columns"));
- o = Offset (0, (y*neighbour_cols + neighbour_y*cols) /
- (cols + neighbour_cols));
- break;
- }
- }
+ int k = broken_spanner_index (dynamic_cast<Spanner*> (me));
+ Grob *neighbour = mother->broken_intos_[k + dir];
+ if (dir == RIGHT)
+ neighbour->set_grob_property ("direction",
+ me->get_grob_property ("direction"));
+ Real neighbour_y = get_boundary_notecolumn_y (neighbour, dir);
+ Real y = get_boundary_notecolumn_y (me, -dir);
+ int neighbour_cols = scm_ilength (neighbour->get_grob_property ("note-columns"));
+ int cols = scm_ilength (me->get_grob_property ("note-columns"));
+ o = Offset (0, (y*neighbour_cols + neighbour_y*cols) /
+ (cols + neighbour_cols));
}
return o;
}
COMMON is size-2 array with common refpoints.
UGH: this routine delivers offsets which are *not* relative to COMMON.
+
+UGH, we should take COMMON-Y as argument.
*/
Offset
Slur::get_attachment (Grob *me, Direction dir,
Grob **common)
{
SCM s = me->get_grob_property ("attachment");
- if (!gh_symbol_p (index_get_cell (s, dir)))
+ if (!gh_pair_p (s) || !gh_symbol_p (index_get_cell (s, dir)))
{
s = set_extremities (me);
}
- SCM a = dir == LEFT ? ly_car (s) : ly_cdr (s);
+ SCM a = (dir == LEFT) ? ly_car (s) : ly_cdr (s);
Spanner*sp = dynamic_cast<Spanner*> (me);
String str = ly_symbol2string (a);
+
Real staff_space = Staff_symbol_referencer::staff_space ((Grob*)me);
Real hs = staff_space / 2.0;
Offset o;
- int slurdir = gh_scm2int (me->get_grob_property ("direction"));
+ Direction slurdir = to_dir (me->get_grob_property ("direction"));
Grob *stem = 0;
if (Note_column::has_interface (sp->get_bound (dir)))
{
Grob * n =sp->get_bound (dir);
- if ((stem = Note_column::stem_l (n)))
+ stem = Note_column::get_stem (n);
+ if (stem)
{
Real x_extent;
- if (Grob *head = Note_column::first_head (n))
+ Grob *head = Note_column::first_head (n);
+ if (head)
x_extent = head->extent (head, X_AXIS).length ();
else
x_extent = n->extent (n, X_AXIS).length ();
- if (str == "head")
+ if (!head)
+ {
+ o = Offset (0, n->extent (n, Y_AXIS)[slurdir]);
+ }
+ else if (str == "head")
{
o = Offset (0, Stem::head_positions (stem)
- [Directional_element_interface::get (me)] * hs);
+ [slurdir] * hs);
/*
Default position is centered in X, on outer side of head Y
*/
o += Offset (0.5 * x_extent,
0.5 * staff_space
- * Directional_element_interface::get (me));
+ * slurdir);
}
else if (str == "alongside-stem")
{
*/
o += Offset (x_extent * (1 + Stem::get_direction (stem)),
0.5 * staff_space
- * Directional_element_interface::get (me));
+ * slurdir);
}
else if (str == "stem")
{
/*
Default position is on stem X, at stem end Y
*/
- Real stem_thickness =
- gh_scm2double (stem->get_grob_property ("thickness"))
- * stem->paper_l ()->get_var ("linethickness");
+ Real stem_thickness = Stem::thickness (stem);
o += Offset (0.5 *
x_extent * (1 + Stem::get_direction (stem))
- ((dir + 1)/2) * stem_thickness
{
Offset off = ly_scm2offset (ly_cdr (l)) * staff_space;
off[X_AXIS] *= dir;
- off[Y_AXIS] *= Directional_element_interface::get (me);
+ off[Y_AXIS] *= slurdir;
o += off;
}
("attachment-offset"),
dir)) * staff_space;
- off[Y_AXIS] *= Directional_element_interface::get (me);
+ off[Y_AXIS] *= slurdir;
o += off;
return o;
}
Grob **common)
{
Offset o;
- Grob* stem_l = unsmob_grob (col->get_grob_property ("stem"));
+ Grob* stem = unsmob_grob (col->get_grob_property ("stem"));
- Direction dir = Directional_element_interface::get (me);
+ Direction dir = get_grob_direction (me);
- if (!stem_l)
+ if (!stem)
{
- me->warning (_ ("Slur over rest?"));
+ programming_error ("No stem for note column?");
o[X_AXIS] = col->relative_coordinate (common[X_AXIS], X_AXIS);
o[Y_AXIS] = col->relative_coordinate (common[Y_AXIS], Y_AXIS);
return o;
}
- Direction stem_dir = Directional_element_interface::get (stem_l);
- o[X_AXIS] = stem_l->relative_coordinate (0, X_AXIS);
+ Direction stem_dir = get_grob_direction (stem);
+ o[X_AXIS] = stem->relative_coordinate (0, X_AXIS);
/*
Simply set x to middle of notehead
o[X_AXIS] -= 0.5 * stem_dir * x_extent;
if ((stem_dir == dir)
- && !stem_l->extent (stem_l, Y_AXIS).empty_b ())
+ && !stem->extent (stem, Y_AXIS).is_empty ())
{
- o[Y_AXIS] = stem_l->extent (common[Y_AXIS], Y_AXIS)[dir];
+ o[Y_AXIS] = stem->extent (common[Y_AXIS], Y_AXIS)[dir];
}
else
{
/*
leave a gap: slur mustn't touch head/stem
*/
- o[Y_AXIS] += dir * gh_scm2double (me->get_grob_property ("y-free")) *
+ o[Y_AXIS] += dir * robust_scm2double (me->get_grob_property ("y-free"), 0) *
1.0;
return o;
}
Array<Offset>
-Slur::get_encompass_offset_arr (Grob *me)
+Slur::get_encompass_offsets (Grob *me)
{
Spanner*sp = dynamic_cast<Spanner*> (me);
SCM eltlist = me->get_grob_property ("note-columns");
common[X_AXIS] = common[X_AXIS]->common_refpoint (sp->get_bound (RIGHT), X_AXIS);
common[X_AXIS] = common[X_AXIS]->common_refpoint (sp->get_bound (LEFT), X_AXIS);
- Link_array<Grob> encompass_arr = ly_scm2grob_array (eltlist);
- Array<Offset> offset_arr;
+ Link_array<Grob> encompasses = ly_scm2grobs (eltlist);
+ Array<Offset> offsets;
Offset origin (me->relative_coordinate (common[X_AXIS], X_AXIS),
me->relative_coordinate (common[Y_AXIS], Y_AXIS));
int first = 1;
- int last = encompass_arr.size () - 2;
+ int last = encompasses.size () - 2;
- offset_arr.push (get_attachment (me, LEFT, common));
+ offsets.push (get_attachment (me, LEFT, common));
/*
left is broken edge
*/
- if (encompass_arr[0] != sp->get_bound (LEFT))
+ if (encompasses[0] != sp->get_bound (LEFT))
{
first--;
// ?
- offset_arr[0][Y_AXIS] -=
- encompass_arr[0]->relative_coordinate (common[Y_AXIS], Y_AXIS)
+ offsets[0][Y_AXIS] -=
+ encompasses[0]->relative_coordinate (common[Y_AXIS], Y_AXIS)
- me->relative_coordinate (common[Y_AXIS], Y_AXIS);
}
/*
right is broken edge
*/
- if (encompass_arr.top () != sp->get_bound (RIGHT))
+ if (encompasses.top () != sp->get_bound (RIGHT))
{
last++;
}
for (int i = first; i <= last; i++)
{
- Offset o (encompass_offset (me, encompass_arr[i], common));
- offset_arr.push (o - origin);
+ Offset o (encompass_offset (me, encompasses[i], common));
+ offsets.push (o - origin);
}
- offset_arr.push (Offset (sp->spanner_length (), 0) + get_attachment (me, RIGHT,common));
+ offsets.push (Offset (sp->spanner_length (), 0) + get_attachment (me, RIGHT,common));
- if (encompass_arr[0] != sp->get_bound (LEFT))
+ if (encompasses[0] != sp->get_bound (LEFT))
{
- offset_arr.top ()[Y_AXIS] -= encompass_arr.top ()->relative_coordinate (common[Y_AXIS], Y_AXIS)
+ offsets.top ()[Y_AXIS] -= encompasses.top ()->relative_coordinate (common[Y_AXIS], Y_AXIS)
- me->relative_coordinate (common[Y_AXIS], Y_AXIS);
}
- return offset_arr;
+ return offsets;
}
assert (a == Y_AXIS);
SCM mol = me->get_uncached_molecule ();
- return ly_interval2scm (unsmob_molecule (mol)->extent (a));
+ Interval ext;
+ if (Molecule * m = unsmob_molecule (mol))
+ ext = m->extent (a);
+ return ly_interval2scm (ext);
}
/*
return SCM_EOL;
}
- Real thick = me->paper_l ()->get_var ("linethickness") *
- gh_scm2double (me->get_grob_property ("thickness"));
+ Real base_thick = robust_scm2double (me->get_grob_property ("thickness"), 1);
+ Real thick = base_thick * Staff_symbol_referencer::line_thickness (me);
+
+ Real ss = Staff_symbol_referencer::staff_space (me);
Bezier one = get_curve (me);
// get_curve may suicide
Molecule a;
SCM d = me->get_grob_property ("dashed");
if (gh_number_p (d))
- a = Lookup::dashed_slur (one, thick, thick * gh_scm2double (d));
+ a = Lookup::dashed_slur (one, thick, thick * robust_scm2double (d, 0));
else
- a = Lookup::slur (one, Directional_element_interface::get (me) * thick, thick);
+ a = Lookup::slur (one, get_grob_direction (me) * base_thick * ss / 10.0,
+ thick);
return a.smobbed_copy ();
}
Real staff_space = Staff_symbol_referencer::staff_space ((Grob*)me);
SCM details = me->get_grob_property ("details");
- SCM h_inf_scm = scm_assq (ly_symbol2scm ("height-limit"), details);
- SCM r_0_scm = scm_assq (ly_symbol2scm ("ratio"), details);
+ SCM h_inf_scm = me->get_grob_property ("height-limit");
+ SCM r_0_scm = me->get_grob_property ("ratio");
- Real r_0 = gh_scm2double (ly_cdr (r_0_scm));
- Real h_inf = staff_space * gh_scm2double (ly_cdr (h_inf_scm));
+ Real r_0 = robust_scm2double (r_0_scm, 1);
+ Real h_inf = staff_space * gh_scm2double (h_inf_scm);
- Slur_bezier_bow bb (get_encompass_offset_arr (me),
- Directional_element_interface::get (me),
+ Slur_bezier_bow bb (get_encompass_offsets (me),
+ get_grob_direction (me),
h_inf, r_0);
Real beautiful = length * default_height * sb;
- Real area = bb.enclosed_area_f ();
+ Real area = bb.get_enclosed_area ();
/*
Slurs that fit beautifully are not ugly
attach = set_extremities(me);
- if (!Directional_element_interface::get (me)
+ if (!get_grob_direction (me)
|| ! gh_symbol_p (index_get_cell (attach, LEFT))
|| ! gh_symbol_p (index_get_cell (attach, RIGHT)))
set_extremities (me);
i++;
}
- Array<Offset> enc (get_encompass_offset_arr (me));
- Direction dir = Directional_element_interface::get (me);
+ Array<Offset> enc (get_encompass_offsets (me));
+ Direction dir = get_grob_direction (me);
Real x1 = enc[0][X_AXIS];
Real x2 = enc.top ()[X_AXIS];
ADD_INTERFACE (Slur,"slur-interface",
"A slur",
- "slope-limit de-uglify-parameters details attachment direction attachment-offset beautiful y-free control-points extremity-rules extremity-offset-alist thickness dashed");
+ "attachment attachment-offset beautiful control-points dashed details de-uglify-parameters direction extremity-rules extremity-offset-alist height-limit ratio slope-limit thickness y-free");