-/*
- tie-column.cc -- implement Tie_column
-
+/*
+ tie-column.cc -- implement Tie_column
+
source file of the GNU LilyPond music typesetter
-
- (c) 2000--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
-#include "spanner.hh"
+ (c) 2000--2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
+
#include "tie-column.hh"
-#include "group-interface.hh"
+
+#include <cmath>
+
+#include "skyline.hh"
+#include "warn.hh"
+#include "paper-column.hh"
+#include "spanner.hh"
+#include "pointer-group-interface.hh"
#include "tie.hh"
#include "directional-element-interface.hh"
-#include "rhythmic-head.hh"
-
+#include "tie-column-format.hh"
+using namespace std;
+void
+Tie_column::add_tie (Grob *me, Grob *tie)
+{
+ if (tie->get_parent (Y_AXIS)
+ && Tie_column::has_interface (tie->get_parent (Y_AXIS)))
+ return;
+ if (!Pointer_group_interface::count (me, ly_symbol2scm ("ties")))
+ {
+ dynamic_cast<Spanner *> (me)->set_bound (LEFT, Tie::head (tie, LEFT));
+ dynamic_cast<Spanner *> (me)->set_bound (RIGHT, Tie::head (tie, RIGHT));
+ }
+ tie->set_parent (me, Y_AXIS);
+ Pointer_group_interface::add_grob (me, ly_symbol2scm ("ties"), tie);
+}
/*
- tie dir depends on what Tie_column does.
+ Extend the spanner over its Tie constituents.
*/
-
-void
-Tie_column::add_tie (Grob*me,Grob *s)
+MAKE_SCHEME_CALLBACK (Tie_column, before_line_breaking, 1);
+SCM
+Tie_column::before_line_breaking (SCM smob)
{
- if (s->get_parent (Y_AXIS)
- && Tie_column::has_interface (s->get_parent (Y_AXIS)))
- return ;
-
- if (! Pointer_group_interface::count (me, "ties"))
+ Spanner *me = dynamic_cast<Spanner *> (unsmob_grob (smob));
+ for (SCM s = me->get_property ("ties"); scm_is_pair (s); s = scm_cdr (s))
{
- dynamic_cast<Spanner*> (me)->set_bound (LEFT, Tie::head (s,LEFT));
- dynamic_cast<Spanner*> (me)->set_bound (RIGHT, Tie::head (s,RIGHT));
+ Spanner *tie = dynamic_cast<Spanner *> (unsmob_grob (scm_car (s)));
+ Direction dir = LEFT;
+ do
+ {
+ if (dir * tie->get_bound (dir)->get_column ()->get_rank ()
+ > dir * me->get_bound (dir)->get_column ()->get_rank ())
+ me->set_bound (dir, Tie::head (tie, dir));
+ }
+ while (flip (&dir) != LEFT);
}
- s->set_parent (me, Y_AXIS);
- Pointer_group_interface::add_grob (me, ly_symbol2scm ("ties"), s);
- s->add_dependency (me);
-}
-
-
-void
-Tie_column::set_directions (Grob*me)
-{
- werner_directions (me);
-}
-
-
-int
-tie_compare (Grob* const & s1,
- Grob* const & s2)
-{
- return sign (Tie::get_position (s1) - Tie::get_position (s2));
+ return SCM_UNSPECIFIED;
}
-/*
- See [Ross p. 138].
-
-
- In normal chord cases, the outer ties point outwards, and the
- direction of the rest is determined by their staff position.
-
- Ross forgets about the tie that is *on* the middle staff line. We
- assume it goes UP. (TODO: make me settable) */
-void
-Tie_column::old_directions (Grob*me)
+MAKE_SCHEME_CALLBACK(Tie_column, calc_positioning_done, 1)
+SCM
+Tie_column::calc_positioning_done (SCM smob)
{
- Link_array<Grob> ties =
- Pointer_group_interface__extract_grobs (me, (Grob*)0, "ties");
-
- for (int i = ties.size (); i--;)
- if (get_grob_direction (ties[i]))
- ties.del (i);
-
-
+ Grob *me = unsmob_grob (smob);
+ extract_grob_set (me, "ties", ro_ties);
+ Link_array<Grob> ties (ro_ties);
if (!ties.size ())
- return ;
-
+ return SCM_BOOL_T;
- Direction d = get_grob_direction (me);
- if (d)
+ if (ties.size() == 1)
{
- for (int i = ties.size (); i--;)
- {
- Grob * t = ties[i];
- set_grob_direction (t, d);
- }
- return;
+ /*
+ Already handled by standard mechanisms.
+ */
+ return SCM_BOOL_T;
}
- if (ties.size () == 1)
+ ties.sort (&Tie::compare);
+
+ Array<Tie_configuration> tie_configs;
+ for (int i = 0; i < ties.size (); i++)
{
- Grob * t = ties[0];
- set_grob_direction (t,Tie::get_default_dir (t));
- return;
+ Tie_configuration conf;
+ conf.dir_ = get_grob_direction (ties[i]);
+ conf.position_ = Tie::get_position (ties[i]);
+ tie_configs.push (conf);
}
-
- ties.sort (tie_compare);
- set_grob_direction (ties[0], DOWN);
- ties.del (0);
-
- set_grob_direction (ties.pop (), UP);
- for (int i=ties.size (); i--;)
+
+ SCM manual_configs = me->get_property ("tie-configuration");
+ bool manual_override = false;
+ set_manual_tie_configuration (&tie_configs,
+ &manual_override,
+ manual_configs);
+ set_tie_config_directions (&tie_configs);
+
+ Grob *common = me;
+ for (int i = 0; i < ties.size (); i++)
{
- Grob * t = ties[i];
- Real p = Tie::get_position (t);
- Direction d = (Direction) sign (p);
- if (!d)
- d = UP;
- set_grob_direction (t, d);
+ common = dynamic_cast<Spanner*> (ties[i])->get_bound (LEFT)->common_refpoint (common, X_AXIS);
+ common = dynamic_cast<Spanner*> (ties[i])->get_bound (RIGHT)->common_refpoint (common, X_AXIS);
}
-
-}
-/*
+ Drul_array< Array<Skyline_entry> > skylines;
+ set_chord_outlines (&skylines, ties, common);
-% . The algorithm to choose the direction of the ties doesn't work
-% properly. I suggest the following for applying ties sequentially
-% from top to bottom:
-%
-% + The topmost tie is always `up'.
-%
-% + If there is a vertical gap to the last note above larger than
-% or equal to a fifth (or sixth?), the tie is `up', otherwise it
-% is `down'.
-%
-% + The bottommost tie is always `down'.
-
- */
-void
-Tie_column::werner_directions (Grob *me)
-{
- Link_array<Grob> ties =
- Pointer_group_interface__extract_grobs (me, (Grob*)0, "ties");
+ Tie_details details;
+ details.init (ties[0]);
- if (!ties.size ())
- return ;
-
- ties.sort (tie_compare);
+ /*
+ Let the ties flow out, according to our single-tie formatting.
+ */
+ if (!manual_override)
+ {
+ Tie::get_configuration (ties[0], common, &tie_configs.elem_ref (0),
+ &skylines,
+ details
+ );
+ Tie::get_configuration (ties.top (), common,
+ &tie_configs.elem_ref (tie_configs.size()-1),
+ &skylines,
+ details
+ );
+ }
- Direction d = get_grob_direction (me);
- if (d)
+ /*
+ Calculate final width and shape of the ties.
+ */
+ for (int i = 0; i < ties.size(); i++)
{
- for (int i = ties.size (); i--;)
- {
- Grob * t = ties[i];
- if (!get_grob_direction (t))
- set_grob_direction (t, d);
- }
- return ;
+ if (!manual_override
+ && (i == 0 || i == ties.size () -1))
+ continue;
+
+
+ final_shape_adjustment (tie_configs[i],
+ skylines,
+ ties[0],
+ details);
}
+
- if (ties.size () == 1)
+ /*
+ Try to shift small ties into available spaces.
+ */
+ if (!manual_override)
{
- Grob * t = ties[0];
- set_grob_direction (t,Tie::get_default_dir (t));
- return ;
+ shift_small_ties (&tie_configs, ties[0], details);
}
-
- Real last_down_pos = 10000;
- if (!get_grob_direction (ties[0]))
- set_grob_direction (ties[0], DOWN);
- for (int i = ties.size (); i--;)
+ for (int i = 0; i < ties.size(); i++)
{
- Grob *t = ties[i];
-
- Direction d = get_grob_direction (t);
- Real p = Tie::get_position (t);
- if (!d)
- {
- if (last_down_pos - p > 5)
- {
- d = UP;
- }
- else
- {
- d = DOWN;
- }
-
- set_grob_direction (t, d);
- }
-
- if (d == DOWN)
- last_down_pos = p;
+ Tie::set_control_points (ties[i], common, tie_configs[i],
+ details
+ );
+ set_grob_direction (ties[i], tie_configs[i].dir_);
}
-
- return ;
+ return SCM_BOOL_T;
}
-MAKE_SCHEME_CALLBACK (Tie_column,after_line_breaking,1);
-SCM
-Tie_column::after_line_breaking (SCM smob)
-{
- werner_directions (unsmob_grob (smob));
- return SCM_UNSPECIFIED;
-}
-
+ADD_INTERFACE (Tie_column, "tie-column-interface",
+ "Object that sets directions of multiple ties in a tied chord",
-ADD_INTERFACE (Tie_column,"tie-column-interface",
- "that sets tie directions in a tied chord",
- "direction");
+ /* properties */
+ "positioning-done "
+ "tie-configuration "
+ );
projects / lilypond.git / blobdiff