source file of the GNU LilyPond music typesetter
- (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "tie.hh"
-
-#include <math.h>
-
#include "spanner.hh"
#include "lookup.hh"
#include "output-def.hh"
#include "stem.hh"
#include "note-head.hh"
#include "tie-column.hh"
+#include "grob-array.hh"
+#include "tie-formatting-problem.hh"
+#include "tie-configuration.hh"
-/*
- tie: Connect two noteheads.
-
- What if we have
-
- c4 ~ \clef bass ; c4 or
-
- c4 \staffchange c4
-
- do we have non-horizontal ties then?
-*/
-void
-Tie::set_head (Grob *me, Direction d, Grob *h)
+int
+Tie::compare (Grob *const &s1,
+ Grob *const &s2)
{
- assert (!head (me, d));
- index_set_cell (me->get_property ("head-pair"), d, h->self_scm ());
-
- dynamic_cast<Spanner *> (me)->set_bound (d, h);
- me->add_dependency (h);
+ return sign (Tie::get_position (s1) - Tie::get_position (s2));
}
void
-Tie::set_interface (Grob *me)
+Tie::set_head (Grob *me, Direction d, Grob *h)
{
- me->set_property ("head-pair", scm_cons (SCM_EOL, SCM_EOL));
+ dynamic_cast<Spanner *> (me)->set_bound (d, h);
}
Grob *
Tie::head (Grob *me, Direction d)
{
- SCM c = me->get_property ("head-pair");
-
- if (scm_is_pair (c))
- return unsmob_grob (index_get_cell (c, d));
+ Item *it = dynamic_cast<Spanner*> (me)->get_bound (d);
+ if (Note_head::has_interface (it))
+ return it;
else
return 0;
}
return Paper_column::get_rank (col);
}
-Real
+int
Tie::get_position (Grob *me)
{
- Direction d = head (me, LEFT) ? LEFT : RIGHT;
- return Staff_symbol_referencer::get_position (head (me, d));
+ 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;
}
/*
return UP;
}
+
+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)
+ && 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::set_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);
+
+ // 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_);
+}
+
void
-Tie::set_direction (Grob *me)
+Tie::set_control_points (Grob *me,
+ Grob *common,
+ Tie_configuration const &conf,
+ Tie_details const &details
+ )
{
- if (!get_grob_direction (me))
+ 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 (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));
+ 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, 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);
- SCM cp = me->get_property ("control-points");
- if (!scm_is_pair (cp)) // list is more accurate
+ // 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 ("control-points")))
{
- cp = get_control_points (smob);
- me->set_property ("control-points", cp);
+ set_default_control_points (me);
}
- if (!scm_is_pair (cp))
- return Stencil ().smobbed_copy ();
+ return SCM_UNSPECIFIED;
+}
+
+
+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);
ADD_INTERFACE (Tie,
"tie-interface",
- "A tie connecting two noteheads.\n",
+
+ "A tie connecting two noteheads. \n\n"
+ ,
+
+
+ /* properties */
+ "avoid-slur " // UGH.
+ "control-points "
+ "dash-fraction "
+ "dash-period "
+ "details "
+ "direction "
+ "thickness "
+ "x-gap ");
+
+
+
- "y-offset dash-period dash-fraction "
- "staffline-clearance control-points head-pair "
- "details thickness x-gap direction minimum-length");
projects / lilypond.git / blobdiff