--- /dev/null
+/*
+ plet-spanner.cc -- implement Tuplet_bracket
+
+ source file of the GNU LilyPond music typesetter
+
+ (c) 1997--2001 Jan Nieuwenhuizen <janneke@gnu.org>
+*/
+
+
+#include "beam.hh"
+#include "box.hh"
+#include "debug.hh"
+#include "font-interface.hh"
+#include "molecule.hh"
+#include "paper-column.hh"
+#include "paper-def.hh"
+#include "text-item.hh"
+#include "tuplet-spanner.hh"
+#include "stem.hh"
+#include "note-column.hh"
+#include "dimensions.hh"
+#include "group-interface.hh"
+#include "directional-element-interface.hh"
+#include "spanner.hh"
+
+void
+Tuplet_bracket::set_interface (Grob*me)
+{
+ me->set_interface (ly_symbol2scm ("tuplet-bracket"));
+}
+
+/*
+ TODO: use stem->beam fields to find Beams. Autobeams aren't found
+ through the engraver mechanism. */
+MAKE_SCHEME_CALLBACK(Tuplet_bracket,brew_molecule,1);
+SCM
+Tuplet_bracket::brew_molecule (SCM smob)
+{
+ Grob *me= unsmob_grob (smob);
+ Molecule mol;
+
+ // Default behaviour: number always, bracket when no beam!
+ bool par_beam = to_boolean (me->get_grob_property ("parallel-beam"));
+ bool bracket_visibility = !par_beam;
+ bool number_visibility = true;
+
+ SCM bracket = me->get_grob_property ("tuplet-bracket-visibility");
+ if (gh_boolean_p (bracket))
+ {
+ bracket_visibility = gh_scm2bool (bracket);
+ }
+ else if (bracket == ly_symbol2scm ("if-no-beam"))
+ bracket_visibility = !par_beam;
+
+ SCM numb = me->get_grob_property ("tuplet-number-visibility");
+ if (gh_boolean_p (numb))
+ {
+ number_visibility = gh_scm2bool (numb);
+ }
+ else if (bracket == ly_symbol2scm ("if-no-beam"))
+ number_visibility = !par_beam;
+
+ if (gh_pair_p (me->get_grob_property ("columns")))
+ {
+ Link_array<Grob> column_arr=
+ Pointer_group_interface__extract_elements (me, (Grob*)0, "columns");
+
+ Real ncw = column_arr.top ()->extent(column_arr.top (), X_AXIS).length ();
+ Real w = dynamic_cast<Spanner*>(me)->spanner_length () + ncw;
+
+ Real staff_space = 1.0;
+ Direction dir = Directional_element_interface::get (me);
+ Real dy = gh_scm2double (me->get_grob_property ("delta-y"));
+ SCM number = me->get_grob_property ("text");
+ if (gh_string_p (number) && number_visibility)
+ {
+ SCM properties = Font_interface::font_alist_chain (me);
+ Molecule num = Text_item::text2molecule (me, number, properties);
+ num.align_to (X_AXIS, CENTER);
+ num.translate_axis (w/2, X_AXIS);
+ num.align_to (Y_AXIS, CENTER);
+ num.translate_axis (dir * staff_space, Y_AXIS);
+
+ num.translate_axis (dy/2, Y_AXIS);
+
+ mol.add_molecule (num);
+ }
+
+ if (bracket_visibility)
+ {
+ Real lt = me->paper_l ()->get_var ("stafflinethickness");
+
+ SCM thick = me->get_grob_property ("thick");
+ SCM gap = me->get_grob_property ("number-gap");
+
+ SCM at =gh_list(ly_symbol2scm ("tuplet"),
+ gh_double2scm (1.0),
+ gap,
+ gh_double2scm (w),
+ gh_double2scm (dy),
+ gh_double2scm (gh_scm2double (thick)* lt),
+ gh_int2scm (dir),
+ SCM_UNDEFINED);
+
+ Box b;
+ mol.add_molecule (Molecule (b, at));
+ }
+ }
+ return mol.smobbed_copy ();
+}
+
+
+
+
+/*
+ use first -> last note for slope, and then correct for disturbing
+ notes in between. */
+void
+Tuplet_bracket::calc_position_and_height (Grob*me,Real *offset, Real * dy)
+{
+ Link_array<Grob> column_arr=
+ Pointer_group_interface__extract_elements (me, (Grob*)0, "columns");
+
+
+ Grob * commony = me->common_refpoint (me->get_grob_property ("columns"), Y_AXIS);
+ Grob * commonx = me->common_refpoint (me->get_grob_property ("columns"), X_AXIS);
+
+ Direction d = Directional_element_interface::get (me);
+
+ /*
+ Use outer non-rest columns to determine slope
+ */
+ int l = 0;
+ while (l <column_arr.size() && Note_column::rest_b(column_arr[l]))
+ l ++;
+
+ int r = column_arr.size ()- 1;
+ while (r >= l && Note_column::rest_b(column_arr[r]))
+ r--;
+
+ if (l < r)
+ {
+ *dy = column_arr[r]->extent (commony, Y_AXIS) [d]
+ - column_arr[l]->extent (commony, Y_AXIS) [d] ;
+ }
+ else
+ * dy = 0;
+
+
+ *offset = - d * infinity_f;
+
+ if (!column_arr.size ())
+ return;
+
+ Real x0 = column_arr[0]->relative_coordinate (commonx, X_AXIS);
+ Real x1 = column_arr.top ()->relative_coordinate (commonx, X_AXIS);
+
+ Real factor = column_arr.size () > 1 ? 1/(x1 - x0) : 1.0;
+
+ for (int i = 0; i < column_arr.size (); i++)
+ {
+ Real notey = column_arr[i]->extent (commony, Y_AXIS)[d]
+ - me->relative_coordinate (commony, Y_AXIS);
+
+ Real x = column_arr[i]->relative_coordinate (commonx, X_AXIS) - x0;
+ Real tuplety = *dy * x * factor;
+
+ if (notey * d > (*offset + tuplety) * d)
+ *offset = notey - tuplety;
+ }
+}
+
+/*
+ use first -> last note for slope,
+*/
+void
+Tuplet_bracket::calc_dy (Grob*me,Real * dy)
+{
+ Link_array<Grob> column_arr=
+ Pointer_group_interface__extract_elements (me, (Grob*)0, "columns");
+
+ /*
+ ugh. refps.
+ */
+ Direction d = Directional_element_interface::get (me);
+ *dy = column_arr.top ()->extent (column_arr.top (), Y_AXIS) [d]
+ - column_arr[0]->extent (column_arr[0], Y_AXIS) [d];
+}
+MAKE_SCHEME_CALLBACK(Tuplet_bracket,after_line_breaking,1);
+
+SCM
+Tuplet_bracket::after_line_breaking (SCM smob)
+{
+ Grob * me = unsmob_grob (smob);
+ Link_array<Note_column> column_arr=
+ Pointer_group_interface__extract_elements (me, (Note_column*)0, "columns");
+ Spanner *sp = dynamic_cast<Spanner*> (me);
+
+
+ if (!column_arr.size ())
+ {
+ me->suicide ();
+ return SCM_UNSPECIFIED;
+ }
+
+ Direction d = Directional_element_interface::get (me);
+ if (!d)
+ {
+ d = Tuplet_bracket::get_default_dir (me);
+ Directional_element_interface::set (me, d);
+
+ }
+ Real dy, offset;
+
+ calc_position_and_height (me,&offset,&dy);
+
+ me->set_grob_property ("delta-y", gh_double2scm (dy));
+
+ me->translate_axis (offset, Y_AXIS);
+
+ if (scm_ilength (me->get_grob_property ("beams")) == 1)
+ {
+ SCM bs = me->get_grob_property ("beams");
+ Grob *b = unsmob_grob (gh_car (bs));
+ Spanner * beam_l = dynamic_cast<Spanner *> (b);
+ if (!sp->broken_b ()
+ && sp->get_bound (LEFT)->column_l () == beam_l->get_bound (LEFT)->column_l ()
+ && sp->get_bound (RIGHT)->column_l () == beam_l->get_bound (RIGHT)->column_l ())
+ me->set_grob_property ("parallel-beam", SCM_BOOL_T);
+ }
+ return SCM_UNSPECIFIED;
+}
+
+
+Direction
+Tuplet_bracket::get_default_dir (Grob*me)
+{
+ Direction d = UP;
+ SCM dir_sym =me->get_grob_property ("dir-forced");
+ if (isdir_b (dir_sym))
+ {
+ d= to_dir (dir_sym);
+ if (d != CENTER)
+ return d;
+ }
+
+ d = UP ;
+ for (SCM s = me->get_grob_property ("columns"); gh_pair_p (s); s = gh_cdr (s))
+ {
+ Grob * nc = unsmob_grob (gh_car (s));
+ if (Note_column::dir (nc) < 0)
+ {
+ d = DOWN;
+ break;
+ }
+ }
+
+ return d;
+}
+
+void
+Tuplet_bracket::add_beam (Grob*me, Grob *b)
+{
+ me->add_dependency (b);
+ Pointer_group_interface::add_element (me, "beams",b);
+}
+
+void
+Tuplet_bracket::add_column (Grob*me, Item*n)
+{
+ Pointer_group_interface::add_element (me, "columns",n);
+ me->add_dependency (n);
+
+ add_bound_item (dynamic_cast<Spanner*> (me), n);
+}
+
+
+++ /dev/null
-/*
- plet-spanner.cc -- implement Tuplet_spanner
-
- source file of the GNU LilyPond music typesetter
-
- (c) 1997--2000 Jan Nieuwenhuizen <janneke@gnu.org>
-*/
-
-
-#include "beam.hh"
-#include "box.hh"
-#include "debug.hh"
-#include "font-interface.hh"
-#include "molecule.hh"
-#include "paper-column.hh"
-#include "paper-def.hh"
-#include "text-item.hh"
-#include "tuplet-spanner.hh"
-#include "stem.hh"
-#include "note-column.hh"
-#include "dimensions.hh"
-#include "group-interface.hh"
-#include "directional-element-interface.hh"
-#include "spanner.hh"
-
-void
-Tuplet_spanner::set_interface (Grob*me)
-{
- me->set_interface (ly_symbol2scm ("tuplet-bracket"));
-}
-
-/*
- TODO: use stem->beam fields to find Beams. Autobeams aren't found
- through the engraver mechanism. */
-MAKE_SCHEME_CALLBACK(Tuplet_spanner,brew_molecule,1);
-SCM
-Tuplet_spanner::brew_molecule (SCM smob)
-{
- Grob *me= unsmob_grob (smob);
- Molecule mol;
-
- // Default behaviour: number always, bracket when no beam!
- bool par_beam = to_boolean (me->get_grob_property ("parallel-beam"));
- bool bracket_visibility = !par_beam;
- bool number_visibility = true;
-
- SCM bracket = me->get_grob_property ("tuplet-bracket-visibility");
- if (gh_boolean_p (bracket))
- {
- bracket_visibility = gh_scm2bool (bracket);
- }
- else if (bracket == ly_symbol2scm ("if-no-beam"))
- bracket_visibility = !par_beam;
-
- SCM numb = me->get_grob_property ("tuplet-number-visibility");
- if (gh_boolean_p (numb))
- {
- number_visibility = gh_scm2bool (numb);
- }
- else if (bracket == ly_symbol2scm ("if-no-beam"))
- number_visibility = !par_beam;
-
- if (gh_pair_p (me->get_grob_property ("columns")))
- {
- Link_array<Grob> column_arr=
- Pointer_group_interface__extract_elements (me, (Grob*)0, "columns");
-
- Real ncw = column_arr.top ()->extent(column_arr.top (), X_AXIS).length ();
- Real w = dynamic_cast<Spanner*>(me)->spanner_length () + ncw;
-
- Real staff_space = 1.0;
- Direction dir = Directional_element_interface::get (me);
- Real dy = gh_scm2double (me->get_grob_property ("delta-y"));
- SCM number = me->get_grob_property ("text");
- if (gh_string_p (number) && number_visibility)
- {
- SCM properties = Font_interface::font_alist_chain (me);
- Molecule num = Text_item::text2molecule (me, number, properties);
- num.align_to (X_AXIS, CENTER);
- num.translate_axis (w/2, X_AXIS);
- num.align_to (Y_AXIS, CENTER);
- num.translate_axis (dir * staff_space, Y_AXIS);
-
- num.translate_axis (dy/2, Y_AXIS);
-
- mol.add_molecule (num);
- }
-
- if (bracket_visibility)
- {
- Real lt = me->paper_l ()->get_var ("stafflinethickness");
-
- SCM thick = me->get_grob_property ("thick");
- SCM gap = me->get_grob_property ("number-gap");
-
- SCM at =gh_list(ly_symbol2scm ("tuplet"),
- gh_double2scm (1.0),
- gap,
- gh_double2scm (w),
- gh_double2scm (dy),
- gh_double2scm (gh_scm2double (thick)* lt),
- gh_int2scm (dir),
- SCM_UNDEFINED);
-
- Box b;
- mol.add_molecule (Molecule (b, at));
- }
- }
- return mol.smobbed_copy ();
-}
-
-
-
-
-/*
- use first -> last note for slope, and then correct for disturbing
- notes in between. */
-void
-Tuplet_spanner::calc_position_and_height (Grob*me,Real *offset, Real * dy)
-{
- Link_array<Grob> column_arr=
- Pointer_group_interface__extract_elements (me, (Grob*)0, "columns");
-
-
- Grob * commony = me->common_refpoint (me->get_grob_property ("columns"), Y_AXIS);
- Grob * commonx = me->common_refpoint (me->get_grob_property ("columns"), X_AXIS);
-
- Direction d = Directional_element_interface::get (me);
-
- /*
- Use outer non-rest columns to determine slope
- */
- int l = 0;
- while (l <column_arr.size() && Note_column::rest_b(column_arr[l]))
- l ++;
-
- int r = column_arr.size ()- 1;
- while (r >= l && Note_column::rest_b(column_arr[r]))
- r--;
-
- if (l < r)
- {
- *dy = column_arr[r]->extent (commony, Y_AXIS) [d]
- - column_arr[l]->extent (commony, Y_AXIS) [d] ;
- }
- else
- * dy = 0;
-
-
- *offset = - d * infinity_f;
-
- if (!column_arr.size ())
- return;
-
- Real x0 = column_arr[0]->relative_coordinate (commonx, X_AXIS);
- Real x1 = column_arr.top ()->relative_coordinate (commonx, X_AXIS);
-
- Real factor = column_arr.size () > 1 ? 1/(x1 - x0) : 1.0;
-
- for (int i = 0; i < column_arr.size (); i++)
- {
- Real notey = column_arr[i]->extent (commony, Y_AXIS)[d]
- - me->relative_coordinate (commony, Y_AXIS);
-
- Real x = column_arr[i]->relative_coordinate (commonx, X_AXIS) - x0;
- Real tuplety = *dy * x * factor;
-
- if (notey * d > (*offset + tuplety) * d)
- *offset = notey - tuplety;
- }
-}
-
-/*
- use first -> last note for slope,
-*/
-void
-Tuplet_spanner::calc_dy (Grob*me,Real * dy)
-{
- Link_array<Grob> column_arr=
- Pointer_group_interface__extract_elements (me, (Grob*)0, "columns");
-
- /*
- ugh. refps.
- */
- Direction d = Directional_element_interface::get (me);
- *dy = column_arr.top ()->extent (column_arr.top (), Y_AXIS) [d]
- - column_arr[0]->extent (column_arr[0], Y_AXIS) [d];
-}
-MAKE_SCHEME_CALLBACK(Tuplet_spanner,after_line_breaking,1);
-
-SCM
-Tuplet_spanner::after_line_breaking (SCM smob)
-{
- Grob * me = unsmob_grob (smob);
- Link_array<Note_column> column_arr=
- Pointer_group_interface__extract_elements (me, (Note_column*)0, "columns");
- Spanner *sp = dynamic_cast<Spanner*> (me);
-
-
- if (!column_arr.size ())
- {
- me->suicide ();
- return SCM_UNSPECIFIED;
- }
-
- Direction d = Directional_element_interface::get (me);
- if (!d)
- {
- d = Tuplet_spanner::get_default_dir (me);
- Directional_element_interface::set (me, d);
-
- }
- Real dy, offset;
-
- calc_position_and_height (me,&offset,&dy);
-
- me->set_grob_property ("delta-y", gh_double2scm (dy));
-
- me->translate_axis (offset, Y_AXIS);
-
- if (scm_ilength (me->get_grob_property ("beams")) == 1)
- {
- SCM bs = me->get_grob_property ("beams");
- Grob *b = unsmob_grob (gh_car (bs));
- Spanner * beam_l = dynamic_cast<Spanner *> (b);
- if (!sp->broken_b ()
- && sp->get_bound (LEFT)->column_l () == beam_l->get_bound (LEFT)->column_l ()
- && sp->get_bound (RIGHT)->column_l () == beam_l->get_bound (RIGHT)->column_l ())
- me->set_grob_property ("parallel-beam", SCM_BOOL_T);
- }
- return SCM_UNSPECIFIED;
-}
-
-
-Direction
-Tuplet_spanner::get_default_dir (Grob*me)
-{
- Direction d = UP;
- SCM dir_sym =me->get_grob_property ("dir-forced");
- if (isdir_b (dir_sym))
- {
- d= to_dir (dir_sym);
- if (d != CENTER)
- return d;
- }
-
- d = UP ;
- for (SCM s = me->get_grob_property ("columns"); gh_pair_p (s); s = gh_cdr (s))
- {
- Grob * nc = unsmob_grob (gh_car (s));
- if (Note_column::dir (nc) < 0)
- {
- d = DOWN;
- break;
- }
- }
-
- return d;
-}
-
-void
-Tuplet_spanner::add_beam (Grob*me, Grob *b)
-{
- me->add_dependency (b);
- Pointer_group_interface::add_element (me, "beams",b);
-}
-
-void
-Tuplet_spanner::add_column (Grob*me, Item*n)
-{
- Pointer_group_interface::add_element (me, "columns",n);
- me->add_dependency (n);
-
- add_bound_item (dynamic_cast<Spanner*> (me), n);
-}
-
-
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