/*
tie.cc -- implement Tie
- source file of the LilyPond music typesetter
+ source file of the GNU LilyPond music typesetter
- (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-#include "paper-def.hh"
#include "tie.hh"
-#include "notehead.hh"
-#include "p-col.hh"
-Spanner*
-Tie::do_break_at(PCol*l, PCol*r) const
+#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 "paper-column.hh"
+#include "rhythmic-head.hh"
+#include "spanner.hh"
+#include "staff-symbol-referencer.hh"
+#include "stem.hh"
+#include "text-interface.hh"
+#include "tie-column.hh"
+#include "tie-configuration.hh"
+#include "tie-formatting-problem.hh"
+#include "warn.hh"
+
+
+int
+Tie::compare (Grob *const &s1,
+ Grob *const &s2)
{
- Tie * tie_p = new Tie(*this);
- Line_of_score const *line_C=l->line_l_;
- tie_p->left_head_l_ = (left_head_l_->line_l()== line_C) ?
- left_head_l_ : 0;
- tie_p->right_head_l_ = (right_head_l_->line_l() == line_C)?
- right_head_l_ : 0;
-
- return tie_p;
+ return sign (Tie::get_position (s1) - Tie::get_position (s2));
}
void
-Tie::set_head(int x_pos, Notehead * head_l)
+Tie::set_head (Grob *me, Direction d, Grob *h)
+{
+ dynamic_cast<Spanner *> (me)->set_bound (d, h);
+}
+
+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;
+}
+
+int
+Tie::get_column_rank (Grob *me, Direction d)
{
- if (x_pos >0) {
- assert(!right_head_l_);
- right_head_l_ = head_l;
- } else {
- assert(!left_head_l_);
- left_head_l_ = head_l;
+ 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) rint (Staff_symbol_referencer::get_position (h));
}
- add_dependency(head_l);
+ 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;
}
-Tie::Tie()
+/*
+ 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 (Grob *me)
{
- right_head_l_ =0;
- left_head_l_ =0;
- same_pitch_b_ =false;
+ Drul_array<Grob*> stems;
+ Direction d = LEFT;
+ do
+ {
+ Grob *stem = head (me, d) ? Rhythmic_head::get_stem (head (me, d)) : 0;
+ if (stem)
+ stem = Stem::is_invisible (stem) ? 0 : stem;
+
+ stems[d] = stem;
+ }
+ while (flip (&d)!= LEFT);
+
+ if (stems[LEFT] && stems[RIGHT])
+ {
+ if (get_grob_direction (stems[LEFT]) == UP
+ && get_grob_direction (stems[RIGHT]) == UP)
+ return DOWN;
+ }
+ else if (stems[LEFT] || stems[RIGHT])
+ {
+ Grob *s = stems[LEFT] ? stems[LEFT] : stems[RIGHT];
+ return -get_grob_direction (s);
+ }
+ else if (int p = get_position (me))
+ return Direction (sign (p));
+
+ return UP;
}
-void
-Tie::set_default_dir()
+
+MAKE_SCHEME_CALLBACK(Tie, calc_direction, 1);
+SCM
+Tie::calc_direction (SCM smob)
{
- int m= (left_head_l_->position_i_ + right_head_l_->position_i_) /2 ;
- dir_i_ = (m < 5)? -1:1; // ugh
+ 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));
+
+ return SCM_UNSPECIFIED;
}
-
+
void
-Tie::do_add_processing()
+Tie::set_default_control_points (Grob *me_grob)
{
- assert(left_head_l_ && right_head_l_);
- left_col_l_ = left_head_l_ -> pcol_l_;
- right_col_l_ = right_head_l_ -> pcol_l_;
-}
+ 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);
+ Tie_specification spec = problem.get_tie_specification (0);
+ spec.has_manual_dir_ = true;
+ spec.manual_dir_ = get_grob_direction (me);
+ if (me->is_live ())
+ {
+ Tie_configuration conf
+ = problem.find_optimal_tie_configuration (spec);
+
+ set_control_points (me, problem.common_x_refpoint (),
+ conf, problem.details_);
+ }
+}
void
-Tie::do_post_processing()
+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));
+
+ 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);
+
+ 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");
+ }
+
+ if (!scm_is_pair (me->get_property_data (ly_symbol2scm ("control-points"))))
+ {
+ set_default_control_points (me);
+ }
+
+ return SCM_UNSPECIFIED;
+}
+
+/*
+ TODO: merge witnh Slur::print.
+ */
+MAKE_SCHEME_CALLBACK (Tie, print, 1);
+SCM
+Tie::print (SCM smob)
{
- assert(left_head_l_ || right_head_l_);
- left_pos_i_ = (left_head_l_)?
- left_head_l_->position_i_ : right_head_l_->position_i_;
- right_pos_i_ = (right_head_l_) ?
- right_head_l_->position_i_ : left_head_l_->position_i_;
-
- if ( right_head_l_ && right_head_l_->extremal_i_) {
- right_pos_i_ += 2*dir_i_;
- right_dx_f_ -= 0.25;
- } else
- right_dx_f_ -= 0.5;
-
- if (left_head_l_ && left_head_l_->extremal_i_) {
- left_pos_i_ += 2*dir_i_;
- left_dx_f_ += 0.25;
- } else
- left_dx_f_ += 0.5;
+ Grob *me = unsmob_grob (smob);
+
+ SCM cp = me->get_property ("control-points");
+
+ Real staff_thick = Staff_symbol_referencer::line_thickness (me);
+ 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))
+ {
+ 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,
+ line_thick,
+ robust_scm2double (p, 1.0),
+ robust_scm2double (f, 0));
+ else
+ a = Lookup::slur (b,
+ get_grob_direction (me) * base_thick,
+ line_thick);
+
+#if DEBUG_TIE_SCORING
+ SCM quant_score = me->get_property ("quant-score");
+
+ if (to_boolean (me->layout ()
+ ->lookup_variable (ly_symbol2scm ("debug-tie-scoring")))
+ && scm_is_string (quant_score))
+ {
+ string str;
+ SCM properties = Font_interface::text_font_alist_chain (me);
+
+ Stencil tm = *unsmob_stencil (Text_interface::interpret_markup
+ (me->layout ()->self_scm (), properties,
+ quant_score));
+ tm.translate_axis (b.control_[0][Y_AXIS]*2, Y_AXIS);
+ a.add_at_edge (X_AXIS, RIGHT, tm, 1.0, 0);
+ }
+#endif
+
+ return a.smobbed_copy ();
}
+ADD_INTERFACE (Tie,
+ "tie-interface",
+
+ "A horizontal curve connecting two noteheads. \n\n"
+ ,
+
+
+ /* properties */
+ "avoid-slur " // UGH.
+ "control-points "
+ "dash-fraction "
+ "dash-period "
+ "details "
+ "direction "
+ "line-thickness "
+ "quant-score "
+ "staff-position "
+ "thickness "
+ );
+
+
+
projects / lilypond.git / blobdiff