source file of the GNU LilyPond music typesetter
- (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-#include <math.h>
-#include "lookup.hh"
-#include "paper-def.hh"
#include "tie.hh"
-#include "rhythmic-head.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 "paper-column.hh"
-#include "debug.hh"
+#include "pointer-group-interface.hh"
+#include "rhythmic-head.hh"
+#include "spanner.hh"
#include "staff-symbol-referencer.hh"
-#include "directional-element-interface.hh"
-#include "molecule.hh"
-#include "bezier-bow.hh"
#include "stem.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"
-void
-Tie::set_head (Score_element*me,Direction d, Item * head_l)
-{
- assert (!head (me,d));
- index_set_cell (me->get_elt_property ("heads"), d, head_l->self_scm_);
-
- dynamic_cast<Spanner*> (me)->set_bound (d, head_l);
- me->add_dependency (head_l);
-}
-Tie::Tie(SCM s)
- : Spanner (s)
+bool
+Tie::less (Grob *const &s1, Grob *const &s2)
{
- dy_f_drul_[LEFT] = dy_f_drul_[RIGHT] = 0.0;
- dx_f_drul_[LEFT] = dx_f_drul_[RIGHT] = 0.0;
+ return Tie::get_position (s1) < Tie::get_position (s2);
}
+
void
-Tie::set_interface (Score_element*me)
+Tie::set_head (Grob *me, Direction d, Grob *h)
{
- me->set_elt_property ("heads", gh_cons (SCM_EOL, SCM_EOL));
- me->set_interface (ly_symbol2scm ("tie-interface"));
+ dynamic_cast<Spanner *> (me)->set_bound (d, h);
}
-bool
-Tie::has_interface (Score_element*me)
+
+Grob *
+Tie::head (Grob *me, Direction d)
{
- return me->has_interface (ly_symbol2scm ("tie-interface"));
+ 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;
+ else
+ return 0;
}
-Score_element*
-Tie::head (Score_element*me, Direction d)
+int
+Tie::get_column_rank (Grob *me, Direction d)
{
- SCM c = me->get_elt_property ("heads");
- c = index_cell (c, d);
+ Spanner *span = dynamic_cast<Spanner *> (me);
+ Grob *h = head (me, d);
+ if (!h)
+ h = span->get_bound (d);
- return unsmob_element (c);
+ Grob *col = dynamic_cast<Item *> (h)->get_column ();
+ return Paper_column::get_rank (col);
}
-Real
-Tie::position_f (Score_element*me)
+int
+Tie::get_position (Grob *me)
{
- Direction d = head (me,LEFT) ? LEFT:RIGHT;
- return Staff_symbol_referencer::position_f (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);
-/*
- ugh: direction of the Tie is more complicated. See [Ross] p136 and further
- */
-Direction
-Tie::get_default_dir (Score_element*me)
-{
- Item * sl = head(me,LEFT) ? Rhythmic_head::stem_l (head (me,LEFT)) :0;
- Item * sr = head(me,RIGHT) ? Rhythmic_head::stem_l (head (me,RIGHT)) :0;
+ /*
- if (sl && Directional_element_interface (sl).get () == UP
- && sr && Directional_element_interface (sr).get () == UP)
- return DOWN;
- else
- return UP;
+ 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;
}
+/*
+ Default: Put the tie oppositie of the stem [Wanske p231]
+ In case of chords: Tie_column takes over
-MAKE_SCHEME_CALLBACK(Tie,after_line_breaking);
-SCM
-Tie::after_line_breaking (SCM smob)
+ The direction of the Tie is more complicated (See [Ross] p136 and
+ further).
+
+ (what about linebreaks? )
+*/
+Direction
+Tie::get_default_dir (Grob *me)
{
- Tie*me = dynamic_cast<Tie*> (unsmob_element (smob));
+ Drul_array<Grob*> stems;
+ Direction d = LEFT;
+ do
+ {
+ 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;
+
+ stems[d] = stem;
+ }
+ while (flip (&d)!= LEFT);
- if (!head (me,LEFT) && !head (me,RIGHT))
+ if (stems[LEFT] && stems[RIGHT])
{
- programming_error ("Tie without heads.");
- me->suicide ();
- return SCM_UNDEFINED;
+ if (get_grob_direction (stems[LEFT]) == UP
+ && get_grob_direction (stems[RIGHT]) == UP)
+ return DOWN;
}
-
- if (!Directional_element_interface (me).get ())
- Directional_element_interface (me).set (Tie::get_default_dir (me));
+ 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));
- Real staff_space = Staff_symbol_referencer::staff_space (me);
- Real half_space = staff_space / 2;
- Real x_gap_f = me->paper_l ()->get_var ("tie_x_gap");
- Real y_gap_f = me->paper_l ()->get_var ("tie_y_gap");
-
- /*
- Slur and tie placement [OSU]
-
- Ties:
-
- * x = inner vertical tangent - d * gap
+ return to_dir (me->get_property("neutral-direction"));
+}
- */
+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
+ )
+ {
+ /* trigger positioning. */
+ (void) yparent->get_property ("positioning-done");
- /*
- OSU: not different for outer notes, so why all me code?
- ie, can we drop me, or should it be made switchable.
- */
- if (head (me,LEFT))
- me->dx_f_drul_[LEFT] = Tie::head (me,LEFT)->extent (X_AXIS).length ();
+ return me->get_property_data ("direction");
+ }
else
- me->dx_f_drul_[LEFT] = dynamic_cast<Spanner*>(me)->get_broken_left_end_align ();
- me->dx_f_drul_[LEFT] += x_gap_f;
- me->dx_f_drul_[RIGHT] -= x_gap_f;
-
- /*
- Slur and tie placement [OSU] -- check me
-
- Ties:
-
- * y = dx < 5ss: horizontal tangent
- y = dx >= 5ss: y next interline - d * 0.25 ss
-
- which probably means that OSU assumes that
+ return scm_from_int (Tie::get_default_dir (me));
+}
- dy <= 5 dx
- for smal slurs
- */
+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_formatting_problem problem;
+ problem.from_tie (me);
+
+ Tie_specification spec = problem.get_tie_specification (0);
+ if (!me->is_live ())
+ return SCM_EOL;
+
+ Ties_configuration conf
+ = problem.generate_optimal_configuration ();
+
+ return get_control_points (me, problem.common_x_refpoint (),
+ conf[0], problem.details_);
+}
- Real ypos = Tie::position_f (me);
+SCM
+Tie::get_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));
- Real y_f = half_space * ypos;
- int ypos_i = int (ypos);
-
- Real dx_f = me->extent (X_AXIS).length () + me->dx_f_drul_[RIGHT] - me->dx_f_drul_[LEFT];
- Direction dir = Directional_element_interface (me).get();
- if (dx_f < me->paper_l ()->get_var ("tie_staffspace_length"))
+ SCM controls = SCM_EOL;
+ for (int i = 4; i--;)
{
- if (abs (ypos_i) % 2)
- y_f += dir * half_space;
- y_f += dir * y_gap_f;
+ if (!b.control_[i].is_sane ())
+ programming_error ("Insane offset");
+ controls = scm_cons (ly_offset2scm (b.control_[i]), controls);
}
- else
- {
- if (! (abs (ypos_i) % 2))
- y_f += dir * half_space;
- y_f += dir * half_space;
- y_f -= dir * y_gap_f;
- }
-
- me->dy_f_drul_[LEFT] = me->dy_f_drul_[RIGHT] = y_f;
-
- return SCM_UNDEFINED;
+ return controls;
}
+MAKE_SCHEME_CALLBACK (Tie, calc_control_points, 1);
+SCM
+Tie::calc_control_points (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")))
+ {
+ extract_grob_set (yparent, "ties", ties);
+ if (me->original() && ties.size() == 1
+ && !to_dir (me->get_property_data ("direction")))
+ {
+ assert (ties[0] == me);
+ set_grob_direction (me, Tie::get_default_dir (me));
+
+ }
+ /* trigger positioning. */
+ (void) yparent->get_property ("positioning-done");
+ }
-Array<Rod>
-Tie::get_rods () const
-{
- Array<Rod> a;
- Rod r;
+ SCM cp = me->get_property_data ("control-points");
+ if (!scm_is_pair (cp))
+ {
+ cp = get_default_control_points (me);
+ }
- r.item_l_drul_ [LEFT]=get_bound (LEFT);
- r.item_l_drul_ [RIGHT]=get_bound (RIGHT);
-
- r.distance_f_ = paper_l ()->get_var ("tie_x_minimum");
- a.push (r);
- return a;
+ return cp;
}
-MAKE_SCHEME_CALLBACK(Tie,brew_molecule);
-
+/*
+ TODO: merge with Slur::print.
+ */
+MAKE_SCHEME_CALLBACK (Tie, print, 1);
SCM
-Tie::brew_molecule (SCM smob)
+Tie::print (SCM smob)
{
- Score_element*me = unsmob_element (smob);
- Real thick = me->paper_l ()->get_var ("tie_thickness");
- Bezier one = dynamic_cast<Tie*> (me)->get_curve ();
-
- Molecule a;
- SCM d = me->get_elt_property ("dashed");
- if (gh_number_p (d))
- a = me->lookup_l ()->dashed_slur (one, thick, gh_scm2int (d));
- else
- a = me->lookup_l ()->slur (one, Directional_element_interface (me).get () * thick, thick);
+ Grob *me = unsmob_grob (smob);
- return a.create_scheme();
-}
+ 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; scm_is_pair (s); s = scm_cdr (s))
+ {
+ b.control_[i] = ly_scm2offset (scm_car (s));
+ i++;
+ }
-Bezier
-Tie::get_curve () const
-{
- Score_element*me = (Score_element*)this;
- Direction d (Directional_element_interface (me).get ());
- Bezier_bow b (get_encompass_offset_arr (), d);
+ Stencil a;
- Real staff_space = Staff_symbol_referencer::staff_space (me);
- Real h_inf = paper_l ()->get_var ("tie_height_limit_factor") * staff_space;
- Real r_0 = paper_l ()->get_var ("tie_ratio");
+ 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);
- b.set_default_bezier (h_inf, r_0);
- Bezier c = b.get_bezier ();
+#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);
- /* should do me for slurs as well. */
- Array<Real> horizontal (c.solve_derivative (Offset (1,0)));
+ 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);
- if (horizontal.size ())
- {
/*
- ugh. Doesnt work for non-horizontal curves.
+ It would be nice if we could put this in a different layer,
+ but alas, this must be done with a Tie override.
*/
- Real y = c.curve_point (horizontal[0])[Y_AXIS];
-
- Real ry = rint (y/staff_space) * staff_space;
- Real diff = ry - y;
- Real newy = y;
- if (fabs (y) <= 2.0
- && fabs (diff) < paper_l ()->get_var ("tie_staffline_clearance"))
- {
- newy = ry - 0.5 * staff_space * sign (diff) ;
- }
-
- Real y0 = c.control_ [0][Y_AXIS];
- c.control_[2][Y_AXIS] =
- c.control_[1][Y_AXIS] =
- (c.control_[1][Y_AXIS] - y0) * ((newy - y0) / (y - y0)) + y0;
+ a.add_stencil (tm);
}
- else
- programming_error ("Tie is nowhere horizontal");
- return c;
-}
+#endif
-Array<Offset>
-Tie::get_encompass_offset_arr () const
-{
- Array<Offset> offset_arr;
- offset_arr.push (Offset (dx_f_drul_[LEFT], dy_f_drul_[LEFT]));
- offset_arr.push (Offset (spanner_length () + dx_f_drul_[RIGHT],
- dy_f_drul_[RIGHT]));
-
- return offset_arr;
+ return a.smobbed_copy ();
}
+ADD_INTERFACE (Tie,
+ "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 "
+ );
+
+
+
+
projects / lilypond.git / blobdiff