source file of the GNU LilyPond music typesetter
- (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "tie.hh"
-#include <math.h>
-
-#include "spanner.hh"
+#include "main.hh"
+#include "bezier.hh"
+#include "directional-element-interface.hh"
+#include "font-interface.hh"
+#include "grob-array.hh"
#include "lookup.hh"
+#include "note-head.hh"
#include "output-def.hh"
-#include "rhythmic-head.hh"
-#include "bezier.hh"
#include "paper-column.hh"
-#include "warn.hh"
+#include "pointer-group-interface.hh"
+#include "rhythmic-head.hh"
+#include "spanner.hh"
#include "staff-symbol-referencer.hh"
-#include "directional-element-interface.hh"
-#include "bezier.hh"
#include "stem.hh"
-#include "note-head.hh"
+#include "text-interface.hh"
#include "tie-column.hh"
+#include "tie-configuration.hh"
+#include "tie-formatting-problem.hh"
+#include "warn.hh"
+#include "semi-tie-column.hh"
-/*
- tie: Connect two noteheads.
-
- What if we have
-
- c4 ~ \clef bass ; c4 or
-
- c4 \staffchange c4
- do we have non-horizontal ties then?
-*/
+bool
+Tie::less (Grob *const &s1, Grob *const &s2)
+{
+ return Tie::get_position (s1) < Tie::get_position (s2);
+}
void
Tie::set_head (Grob *me, Direction d, Grob *h)
{
dynamic_cast<Spanner *> (me)->set_bound (d, h);
- me->add_dependency (h);
}
Grob *
Tie::head (Grob *me, Direction d)
{
+ if (is_direction (me->get_property ("head-direction")))
+ {
+ Direction hd = to_dir (me->get_property ("head-direction"));
+
+ return (hd == d)
+ ? unsmob_grob (me->get_object ("note-head"))
+ : 0;
+ }
+
Item *it = dynamic_cast<Spanner*> (me)->get_bound (d);
if (Note_head::has_interface (it))
return it;
int
Tie::get_position (Grob *me)
{
- Direction d = head (me, LEFT) ? LEFT : RIGHT;
- return (int) Staff_symbol_referencer::get_position (head (me, d));
+ Direction d = LEFT;
+ do
+ {
+ Grob *h = head (me, d);
+ if (h)
+ return (int) rint (Staff_symbol_referencer::get_position (h));
+ }
+ while (flip (&d) != LEFT);
+
+ /*
+
+ TODO: this is theoretically possible for ties across more than 2
+ systems.. We should look at the first broken copy.
+
+ */
+ programming_error ("Tie without heads. Suicide");
+ me->suicide ();
+ return 0;
}
/*
Direction
Tie::get_default_dir (Grob *me)
{
- Item *sl = head (me, LEFT) ? Rhythmic_head::get_stem (head (me, LEFT)) : 0;
- Item *sr = head (me, RIGHT) ? Rhythmic_head::get_stem (head (me, RIGHT)) : 0;
- if (sl && sr)
- {
- if (get_grob_direction (sl) == UP
- && get_grob_direction (sr) == UP)
- return DOWN;
- }
- else if (sl || sr)
- {
- Item *s = sl ? sl : sr;
- return -get_grob_direction (s);
- }
-
- return UP;
-}
-
-void
-Tie::set_direction (Grob *me)
-{
- if (!get_grob_direction (me))
- {
- if (Tie_column::has_interface (me->get_parent (Y_AXIS)))
- Tie_column::set_directions (me->get_parent (Y_AXIS));
- else
- set_grob_direction (me, Tie::get_default_dir (me));
- }
-}
-
-Interval
-Tie::get_default_attachments (Spanner *me, Grob *common, Real gap,
- int *staff_position,
- bool *in_between
- )
-{
- Real staff_space = Staff_symbol_referencer::staff_space (me);
- Direction dir = get_grob_direction (me);
- Interval attachments;
+ Drul_array<Grob*> stems;
Direction d = LEFT;
do
{
- attachments[d]
- = robust_relative_extent (me->get_bound (d),
- common,
- X_AXIS)[-d]
- - gap * d;
- }
- while (flip (&d) != LEFT);
-
- if (attachments.length () < 0.6 * staff_space)
- {
- /*
- Let short ties start over note heads, instead of between.
- */
- Drul_array<bool> allow (true, true);
-
- Direction d = LEFT;
- do {
- if (Note_head::has_interface (me->get_bound (d)))
- {
- Grob *stem = unsmob_grob (me->get_bound (d)->get_object ("stem"));
- if (get_grob_direction (stem) == dir
- && -d == dir)
- allow[d] = false;
- }
- } while (flip (&d) != LEFT);
-
- if (allow[LEFT] && allow[RIGHT])
- {
- *staff_position += dir;
- do
- {
- if (Note_head::has_interface (me->get_bound (d)))
- {
- Interval extent
- = robust_relative_extent (me->get_bound (d),
- common, X_AXIS);
-
- attachments[d] = extent.linear_combination (- 0.5 * d);
- *in_between = false;
- }
- }
- while (flip (&d) != LEFT);
- }
- }
-
- return attachments;
-}
+ Grob *one_head = head (me, d);
+ if (!one_head && dynamic_cast<Spanner*> (me))
+ one_head = Tie::head (dynamic_cast<Spanner*> (me)->broken_neighbor (d), d);
+
+ Grob *stem = one_head ? Rhythmic_head::get_stem (one_head) : 0;
+ if (stem)
+ stem = Stem::is_invisible (stem) ? 0 : stem;
-Interval
-get_skyline_attachment (Drul_array< Array < Skyline_entry > > const &skylines,
- Real y)
-{
- Interval attachments;
- Direction d = LEFT;
- do
- {
- attachments[d] = skyline_height (skylines[d], y, -d);
+ stems[d] = stem;
}
- while (flip (&d) != LEFT);
+ while (flip (&d)!= LEFT);
- return attachments;
-}
-
-void
-Tie::get_configuration (Grob *me_grob, Grob *common,
- Tie_configuration *conf,
- Drul_array< Array < Skyline_entry > > const *skylines,
- Tie_details const &details
- )
-{
- Spanner *me = dynamic_cast<Spanner*> (me_grob);
- if (!head (me, LEFT) && !head (me, RIGHT))
+ if (stems[LEFT] && stems[RIGHT])
{
- programming_error ("tie without heads");
- me->suicide ();
- return ;
- }
-
- /*
- UGH. Don't mirror Tie_configuration.
- */
- Direction dir = CENTER;
-
- int tie_position = (int) Tie::get_position (me);
- int staff_position = (int) conf->position_;
-
- if (conf->dir_)
- {
- dir = conf->dir_;
- }
- else
- {
- dir = get_grob_direction (me);
- if (!dir)
- dir = get_default_dir (me);
- }
-
- Real staff_space = details.staff_space_;
-
- bool in_between = true;
- Interval attachments = conf->attachment_x_;
- Real gap = robust_scm2double (me->get_property ("x-gap"), 0.2);
- if (attachments.is_empty())
- {
- if (!skylines)
- attachments = get_default_attachments (me, common, gap,
- &staff_position,
- &in_between);
- else
- {
- Real y = staff_space * 0.5 * staff_position;
- attachments = get_skyline_attachment (*skylines, y);
- attachments.widen (-gap);
- }
+ if (get_grob_direction (stems[LEFT]) == UP
+ && get_grob_direction (stems[RIGHT]) == UP)
+ return DOWN;
}
-
- Bezier b = slur_shape (attachments.length(),
- details.height_limit_,
- details.ratio_);
- b.scale (1, dir);
-
- Offset middle = b.curve_point (0.5);
- Offset edge = b.curve_point (0.0);
-
- staff_position = int (rint (staff_position));
-
- Real dy = fabs (middle[Y_AXIS] - edge[Y_AXIS]);
- bool in_space = !(Staff_symbol_referencer::on_staffline (me, (int) staff_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
- && (staff_position == dot_pos
- || staff_position + dir == dot_pos))
+ else if (stems[LEFT] || stems[RIGHT])
{
- staff_position += dir;
- in_space = !in_space;
-
- if (skylines)
- {
- Real y = staff_space * 0.5 * staff_position;
- attachments = get_skyline_attachment (*skylines, y);
- attachments.widen (-gap);
- Bezier b = slur_shape (attachments.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);
- }
+ Grob *s = stems[LEFT] ? stems[LEFT] : stems[RIGHT];
+ return -get_grob_direction (s);
}
+ else if (int p = get_position (me))
+ return Direction (sign (p));
- /*
- 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 = staff_position * staff_space * 0.5;
- if (flag.extent (Y_AXIS).contains (y))
- {
- staff_position += dir;
- in_space = !in_space;
- }
- }
-
- if (in_space != fits_in_space)
- {
- if (in_space)
- {
- staff_position += dir;
- }
- else
- {
- in_space = true;
- staff_position += dir;
- }
-
- /*
- ugh: code dup.
- */
- if (skylines)
- {
- Real y = staff_space * 0.5 * staff_position;
- attachments = get_skyline_attachment (*skylines, y);
- attachments.widen (-gap);
-
- Bezier b = slur_shape (attachments.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);
- }
- }
+ return to_dir (me->get_property("neutral-direction"));
+}
- /*
- Putting larger in-space ties next to the notes forces
- the edges to be opposite (Y-wise) to the tie direction.
- */
- if (staff_position == tie_position
- && in_space
- && Staff_symbol_referencer::staff_radius (me) > fabs (staff_position) / 2
- && dy > 0.3 * staff_space)
+MAKE_SCHEME_CALLBACK (Tie, calc_direction, 1);
+SCM
+Tie::calc_direction (SCM smob)
+{
+ Grob *me = unsmob_grob (smob);
+ Grob *yparent = me->get_parent (Y_AXIS);
+ if ((Tie_column::has_interface (yparent)
+ || Semi_tie_column::has_interface (yparent))
+ && unsmob_grob_array (yparent->get_object ("ties"))
+ // && unsmob_grob_array (yparent->get_object ("ties"))->size () > 1
+ )
{
- staff_position += 2 * dir;
- }
+ /* trigger positioning. */
+ (void) yparent->get_property ("positioning-done");
- if (!in_between
- && in_space
- && fabs (staff_position - tie_position) <= 1)
- staff_position += 2*dir;
-
-
- conf->dir_ = dir;
- conf->position_ = staff_position;
- if (in_space)
- {
- if ((fabs (staff_position - tie_position) <= 1
- && fabs (dy) < 0.45 * staff_space)
- || fabs (dy) < 0.6 * staff_space)
- {
- /*
- vertically center in space.
- */
- conf->dir_ = dir;
- conf->position_ = staff_position;
- conf->attachment_x_ = attachments;
- conf->center_tie_vertically (details);
- }
- else
- {
- conf->delta_y_ =
- dir * staff_space * (- 0.3);
- }
+ return me->get_property_data ("direction");
}
else
- {
- Real where = 0.5 * dir;
-
- Real rounding_dy = (where - middle[Y_AXIS]);
- conf->delta_y_ = rounding_dy;
-
- if (dir * (b.curve_point (0.0)[Y_AXIS]
- + conf->position_ * staff_space * 0.5
- + conf->delta_y_) <
- dir * tie_position * 0.5 * staff_space)
- {
- if (Staff_symbol_referencer::staff_radius (me) > fabs (tie_position) / 2)
- conf->position_ += 2 * dir;
- else
- conf->position_ += dir;
- }
- }
-
-
- if (skylines)
- {
- Real half_space = 0.5 * staff_space;
- Real y = staff_position * half_space;
-
- attachments = get_skyline_attachment (*skylines, y);
-
- attachments.widen (-gap);
- }
- conf->attachment_x_ = attachments;
+ return scm_from_int (Tie::get_default_dir (me));
}
-void
-Tie::set_default_control_points (Grob *me_grob)
+SCM
+Tie::get_default_control_points (Grob *me_grob)
{
Spanner *me = dynamic_cast<Spanner*> (me_grob);
Grob *common = me;
common = me->get_bound (LEFT)->common_refpoint (common, X_AXIS);
common = me->get_bound (RIGHT)->common_refpoint (common, X_AXIS);
- Tie_configuration conf;
- if (!get_grob_direction (me))
- set_grob_direction (me, get_default_dir (me));
+ Tie_formatting_problem problem;
+ problem.from_tie (me);
+
+ Tie_specification spec = problem.get_tie_specification (0);
+ if (!me->is_live ())
+ return SCM_EOL;
- int tie_position = (int) Tie::get_position (me);
- conf.position_ = tie_position;
- Tie_details details;
- details.init (me);
- get_configuration (me, common, &conf, 0, details);
- set_control_points (me, common, conf, details);
+ Ties_configuration conf
+ = problem.generate_optimal_configuration ();
+
+ return get_control_points (me, problem.common_x_refpoint (),
+ conf[0], problem.details_);
}
-void
-Tie::set_control_points (Grob *me,
+SCM
+Tie::get_control_points (Grob *me,
Grob *common,
Tie_configuration const &conf,
Tie_details const &details
)
{
- Bezier b = conf.get_bezier (details);
- b.scale (1, conf.dir_);
- b.translate (Offset (conf.attachment_x_[LEFT]
- - me->relative_coordinate (common, X_AXIS),
- 0.5 * conf.position_ * details.staff_space_
- + conf.delta_y_
- ));
-
+ Bezier b = conf.get_transformed_bezier (details);
+ b.translate (Offset (- me->relative_coordinate (common, X_AXIS), 0));
+
SCM controls = SCM_EOL;
for (int i = 4; i--;)
{
programming_error ("Insane offset");
controls = scm_cons (ly_offset2scm (b.control_[i]), controls);
}
- me->set_property ("control-points", controls);
+ return controls;
}
-
-
-MAKE_SCHEME_CALLBACK (Tie, print, 1);
+MAKE_SCHEME_CALLBACK (Tie, calc_control_points, 1);
SCM
-Tie::print (SCM smob)
+Tie::calc_control_points (SCM smob)
{
Grob *me = unsmob_grob (smob);
- if (CENTER == get_grob_direction (me))
- set_direction (me);
-
- if (!get_grob_direction (me))
- me->programming_error ("Tie direction not set.");
-
- SCM cp = me->get_property ("control-points");
- if (!scm_is_pair (cp))
+ Grob *yparent = me->get_parent (Y_AXIS);
+ if ((Tie_column::has_interface (yparent)
+ || Semi_tie_column::has_interface (yparent))
+ && unsmob_grob_array (yparent->get_object ("ties")))
{
- /*
- UGH. dependency tracking!
- */
- if (Tie_column::has_interface (me->get_parent (Y_AXIS)))
+ extract_grob_set (yparent, "ties", ties);
+ if (me->original() && ties.size() == 1
+ && !to_dir (me->get_property_data ("direction")))
{
- Tie_column::set_directions (me->get_parent (Y_AXIS));
- }
-
- cp = me->get_property ("control-points");
+ assert (ties[0] == me);
+ set_grob_direction (me, Tie::get_default_dir (me));
+
+ }
+ /* trigger positioning. */
+ (void) yparent->get_property ("positioning-done");
}
-
+
+ SCM cp = me->get_property_data ("control-points");
if (!scm_is_pair (cp))
{
- set_default_control_points (me);
- cp = me->get_property ("control-points");
+ cp = get_default_control_points (me);
}
- if (!scm_is_pair (cp))
- return Stencil ().smobbed_copy ();
+ return cp;
+}
+
+/*
+ TODO: merge with Slur::print.
+ */
+MAKE_SCHEME_CALLBACK (Tie, print, 1);
+SCM
+Tie::print (SCM smob)
+{
+ Grob *me = unsmob_grob (smob);
+
+ SCM cp = me->get_property ("control-points");
Real staff_thick = Staff_symbol_referencer::line_thickness (me);
- Real base_thick = robust_scm2double (me->get_property ("thickness"), 1);
- Real thick = base_thick * staff_thick;
+ Real base_thick = staff_thick * robust_scm2double (me->get_property ("thickness"), 1);
+ Real line_thick = staff_thick * robust_scm2double (me->get_property ("line-thickness"), 1);
Bezier b;
int i = 0;
- for (SCM s = cp; s != SCM_EOL; s = scm_cdr (s))
+ for (SCM s = cp; scm_is_pair (s); s = scm_cdr (s))
{
b.control_[i] = ly_scm2offset (scm_car (s));
i++;
SCM f = me->get_property ("dash-fraction");
if (scm_is_number (p) && scm_is_number (f))
a = Lookup::dashed_slur (b,
- thick,
+ line_thick,
robust_scm2double (p, 1.0),
robust_scm2double (f, 0));
else
a = Lookup::slur (b,
- get_grob_direction (me) * staff_thick,
- thick);
+ get_grob_direction (me) * base_thick,
+ line_thick);
+
+#if DEBUG_TIE_SCORING
+ SCM annotation = me->get_property ("annotation");
+ if (!scm_is_string (annotation))
+ {
+ SCM debug = me->layout ()->lookup_variable (ly_symbol2scm ("debug-tie-scoring"));
+ if (to_boolean (debug))
+ annotation = me->get_property ("quant-score");
+ }
+ if (scm_is_string (annotation))
+ {
+ string str;
+ SCM properties = Font_interface::text_font_alist_chain (me);
+
+ Stencil tm = *unsmob_stencil (Text_interface::interpret_markup
+ (me->layout ()->self_scm (), properties,
+ annotation));
+ tm.translate (Offset (b.control_[3][X_AXIS] + 0.5,
+ b.control_[0][Y_AXIS] * 2));
+ tm = tm.in_color (1, 0, 0);
+
+ /*
+ It would be nice if we could put this in a different layer,
+ but alas, this must be done with a Tie override.
+ */
+ a.add_stencil (tm);
+ }
+#endif
return a.smobbed_copy ();
}
ADD_INTERFACE (Tie,
- "tie-interface",
-
- "A tie connecting two noteheads.\n",
+ "A horizontal curve connecting two noteheads.",
+ /* properties */
+ "annotation "
+ "avoid-slur " // UGH.
"control-points "
"dash-fraction "
"dash-period "
"details "
"direction "
+ "head-direction "
+ "line-thickness "
+ "neutral-direction "
+ "quant-score "
+ "separation-item "
+ "staff-position "
"thickness "
- "x-gap ");
+ );
+
+
+
+
+
projects / lilypond.git / blobdiff