source file of the GNU LilyPond music typesetter
- (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-#include "paper-def.hh"
#include "tie.hh"
+#include "spanner.hh"
+#include "lookup.hh"
+#include "output-def.hh"
+#include "rhythmic-head.hh"
+#include "bezier.hh"
+#include "paper-column.hh"
+#include "warn.hh"
+#include "staff-symbol-referencer.hh"
+#include "directional-element-interface.hh"
+#include "bezier.hh"
+#include "stem.hh"
#include "note-head.hh"
-#include "p-col.hh"
-#include "debug.hh"
+#include "tie-column.hh"
+#include "grob-array.hh"
+#include "tie-formatting-problem.hh"
+#include "tie-configuration.hh"
+int
+Tie::compare (Grob *const &s1,
+ Grob *const &s2)
+{
+ return sign (Tie::get_position (s1) - Tie::get_position (s2));
+}
void
-Tie::set_head (Direction d, Note_head * head_l)
+Tie::set_head (Grob *me, Direction d, Grob *h)
{
- assert (!head_l_drul_[d]);
- head_l_drul_[d] = head_l;
- set_bounds (d, head_l);
+ dynamic_cast<Spanner *> (me)->set_bound (d, h);
+}
- add_dependency (head_l);
+Grob *
+Tie::head (Grob *me, Direction d)
+{
+ Item *it = dynamic_cast<Spanner*> (me)->get_bound (d);
+ if (Note_head::has_interface (it))
+ return it;
+ else
+ return 0;
}
-Tie::Tie()
+int
+Tie::get_column_rank (Grob *me, Direction d)
{
- head_l_drul_[RIGHT] =0;
- head_l_drul_[LEFT] =0;
+ Spanner *span = dynamic_cast<Spanner *> (me);
+ Grob *h = head (me, d);
+ if (!h)
+ h = span->get_bound (d);
+
+ Grob *col = dynamic_cast<Item *> (h)->get_column ();
+ return Paper_column::get_rank (col);
}
+int
+Tie::get_position (Grob *me)
+{
+ Direction d = LEFT;
+ do
+ {
+ Grob *h = head (me, d);
+ if (h)
+ return (int) 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;
+}
/*
- ugh: direction of the Tie is more complicated. See [Ross] p136 and further
- */
+ Default: Put the tie oppositie of the stem [Wanske p231]
+
+ In case of chords: Tie_column takes over
+
+ The direction of the Tie is more complicated (See [Ross] p136 and
+ further).
+
+ (what about linebreaks? )
+*/
Direction
-Tie::get_default_dir () const
+Tie::get_default_dir (Grob *me)
{
- int m = (head_l_drul_[LEFT]->position_i_
- + head_l_drul_[RIGHT]->position_i_) /2;
- /*
- If dir is not determined: inverse of stem: down
- (see stem::get_default_dir ())
- */
- return (m <= 0)? DOWN : UP;
+ 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::do_add_processing()
+
+MAKE_SCHEME_CALLBACK(Tie, calc_direction, 1);
+SCM
+Tie::calc_direction (SCM smob)
{
- if (!(head_l_drul_[LEFT] && head_l_drul_[RIGHT]))
- warning (_ ("lonely tie"));
+ Grob *me = unsmob_grob (smob);
+ Grob *yparent = me->get_parent (Y_AXIS);
+ if (Tie_column::has_interface (yparent)
+ && unsmob_grob_array (yparent->get_object ("ties"))
+ && unsmob_grob_array (yparent->get_object ("ties"))->size () > 1)
+ {
+ /* trigger positioning. */
+ (void) yparent->get_property ("positioning-done");
+ }
+ else
+ set_grob_direction (me, Tie::get_default_dir (me));
- Direction d = LEFT;
- Drul_array<Note_head *> new_head_drul = head_l_drul_;
- do {
- if (!head_l_drul_[d])
- new_head_drul[d] = head_l_drul_[(Direction)-d];
- } while (flip(&d) != LEFT);
- head_l_drul_ = new_head_drul;
+ return SCM_UNSPECIFIED;
}
+
void
-Tie::do_post_processing()
+Tie::set_default_control_points (Grob *me_grob)
{
- assert (head_l_drul_[LEFT] || head_l_drul_[RIGHT]);
-
- Real interline_f = paper_l ()->get_realvar (interline_scm_sym);
- Real internote_f = interline_f / 2;
- Real x_gap_f = paper_l ()->get_var ("tie_x_gap");
- Real y_gap_f = paper_l ()->get_var ("tie_y_gap");
-
- /*
- Slur and tie placement [OSU]
+ 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_formatting_problem problem;
+ problem.from_tie (me);
+
+ // get_configuration (me, &conf, problem);
+ int tie_position = (int) Tie::get_position (me);
+ Tie_configuration conf
+ = problem.find_optimal_tie_configuration (tie_position, get_grob_direction (me));
+ set_control_points (me, problem.common_x_refpoint (),
+ conf, problem.details_);
+}
- Ties:
+void
+Tie::set_control_points (Grob *me,
+ Grob *common,
+ Tie_configuration const &conf,
+ Tie_details const &details
+ )
+{
+ Bezier b = conf.get_transformed_bezier (details);
+ b.translate (Offset (- me->relative_coordinate (common, X_AXIS), 0));
- * x = inner vertical tangent - d * gap
+ SCM controls = SCM_EOL;
+ for (int i = 4; i--;)
+ {
+ if (!b.control_[i].is_sane ())
+ programming_error ("Insane offset");
+ controls = scm_cons (ly_offset2scm (b.control_[i]), controls);
+ }
+ me->set_property ("control-points", controls);
+}
- */
+MAKE_SCHEME_CALLBACK(Tie, calc_control_points, 1);
+SCM
+Tie::calc_control_points (SCM smob)
+{
+ Grob *me = unsmob_grob (smob);
+ // trigger Tie-column
+ (void) get_grob_direction (me);
- /*
- OSU: not different for outer notes, so why all this code?
- ie, can we drop this, or should it be made switchable.
- */
-#if 0
- Direction d = LEFT;
- do
- {
- Real head_width_f = head_l_drul_[d]
- ? head_l_drul_[d]->extent (X_AXIS).length ()
- : 0;
- /*
- side attached to outer (upper or lower) notehead of chord
- */
- if (head_l_drul_[d]
- /*
- && head_l_drul_[d]->remove_elt_property (extremal_scm_sym) != SCM_BOOL_F)
- ugh, ugh:
-
- a~a~a;
-
- to second tie, middle notehead seems not extremal
-
- Getting scared a bit by score-element's comment:
- // is this a good idea?
- */
- && (head_l_drul_[d]->get_elt_property (extremal_scm_sym)
- != SCM_BOOL_F))
- {
- if (d == LEFT)
- dx_f_drul_[d] += head_width_f;
- dx_f_drul_[d] += -d * x_gap_f;
- }
- /*
- side attached to inner notehead
- */
- else
- {
- dx_f_drul_[d] += -d * head_width_f;
- }
- } while (flip (&d) != LEFT);
-
-#else
-
- if (head_l_drul_[LEFT])
- dx_f_drul_[LEFT] = head_l_drul_[LEFT]->extent (X_AXIS).length ();
- dx_f_drul_[LEFT] += x_gap_f;
- dx_f_drul_[RIGHT] -= x_gap_f;
-
-#endif
-
- /*
- Slur and tie placement [OSU] -- check this
-
- Ties:
-
- * y = dx < 5ss: horizontal tangent
- y = dx >= 5ss: y next interline - d * 0.25 ss
-
- which probably means that OSU assumes that
-
- dy <= 5 dx
-
- for smal slurs
- */
-
- int ypos_i = head_l_drul_[LEFT] ? head_l_drul_[LEFT]->position_i_
- : head_l_drul_[RIGHT]->position_i_;
-
- Real y_f = internote_f * ypos_i;
-
- Real dx_f = extent (X_AXIS).length () + dx_f_drul_[RIGHT] - dx_f_drul_[LEFT];
- if (dx_f < paper_l ()->get_var ("tie_staffspace_length"))
+ Grob *yparent = me->get_parent (Y_AXIS);
+ if (Tie_column::has_interface (yparent)
+ && unsmob_grob_array (yparent->get_object ("ties"))
+ && unsmob_grob_array (yparent->get_object ("ties"))->size () > 1)
{
- if (abs (ypos_i) % 2)
- y_f += dir_ * internote_f;
- y_f += dir_ * y_gap_f;
+ /* trigger positioning. */
+ (void) yparent->get_property ("positioning-done");
}
- else
+
+ if (!scm_is_pair (me->get_property ("control-points")))
{
- if (! (abs (ypos_i) % 2))
- y_f += dir_ * internote_f;
- y_f += dir_ * internote_f;
- y_f -= dir_ * y_gap_f;
+ set_default_control_points (me);
}
-
- dy_f_drul_[LEFT] = dy_f_drul_[RIGHT] = y_f;
-}
-void
-Tie::do_substitute_element_pointer (Score_element*o, Score_element*n)
-{
- Note_head *new_l = n ? dynamic_cast<Note_head *> (n) : 0;
- if (dynamic_cast <Item *> (o) == head_l_drul_[LEFT])
- head_l_drul_[LEFT] = new_l;
- else if (dynamic_cast <Item *> (o) == head_l_drul_[RIGHT])
- head_l_drul_[RIGHT] = new_l;
+ return SCM_UNSPECIFIED;
}
-Array<Rod>
-Tie::get_rods () const
+MAKE_SCHEME_CALLBACK (Tie, print, 1);
+SCM
+Tie::print (SCM smob)
{
- Array<Rod> a;
- Rod r;
- r.item_l_drul_ = spanned_drul_;
- r.distance_f_ = paper_l ()->get_var ("tie_x_minimum");
- a.push (r);
- return a;
+ 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;
+
+ Bezier b;
+ int i = 0;
+ for (SCM s = cp; s != SCM_EOL; s = scm_cdr (s))
+ {
+ b.control_[i] = ly_scm2offset (scm_car (s));
+ i++;
+ }
+
+ Stencil a;
+
+ SCM p = me->get_property ("dash-period");
+ SCM f = me->get_property ("dash-fraction");
+ if (scm_is_number (p) && scm_is_number (f))
+ a = Lookup::dashed_slur (b,
+ thick,
+ robust_scm2double (p, 1.0),
+ robust_scm2double (f, 0));
+ else
+ a = Lookup::slur (b,
+ get_grob_direction (me) * staff_thick,
+ thick);
+
+ return a.smobbed_copy ();
}
+
+ADD_INTERFACE (Tie,
+ "tie-interface",
+
+ "A tie connecting two noteheads. \n\n"
+ ,
+
+
+ /* properties */
+ "avoid-slur " // UGH.
+ "control-points "
+ "dash-fraction "
+ "dash-period "
+ "details "
+ "direction "
+ "thickness "
+ "x-gap ");
+
+
+
+
projects / lilypond.git / blobdiff