source file of the GNU LilyPond music typesetter
- (c) 1997--1999 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1997--2000 Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include "box.hh"
#include "debug.hh"
-#include "lookup.hh"
+#include "font-interface.hh"
#include "molecule.hh"
-#include "note-column.hh"
#include "paper-column.hh"
-#include "bar.hh"
#include "paper-def.hh"
+#include "text-item.hh"
#include "volta-spanner.hh"
-#include "stem.hh"
-#include "dimension-cache.hh"
-#include "pointer.tcc"
+#include "group-interface.hh"
+#include "side-position-interface.hh"
+#include "directional-element-interface.hh"
-Volta_spanner::Volta_spanner ()
-{
- last_b_ = false;
- dim_cache_ [Y_AXIS]->set_callback (dim_callback);
-}
-
-Molecule*
-Volta_spanner::do_brew_molecule_p () const
-{
- Molecule* mol_p = new Molecule;
-
- if (!bar_arr_.size ())
- return mol_p;
-
- bool no_vertical_start = false;
- bool no_vertical_end = last_b_;
- Spanner *orig_span = dynamic_cast<Spanner*> (original_l_);
- if (orig_span && (orig_span->broken_into_l_arr_[0] != (Spanner*)this))
- no_vertical_start = true;
- if (orig_span && (orig_span->broken_into_l_arr_.top () != (Spanner*)this))
- no_vertical_end = true;
- if (bar_arr_.top ()->type_str_.length_i () > 1)
- no_vertical_end = false;
-
- Real interline_f = paper_l ()->get_var ("interline");
- Real internote_f = interline_f/2;
- Real t = paper_l ()->get_var ("volta_thick");
-
- Real dx = internote_f;
- Real w = extent (X_AXIS).length () - dx - get_broken_left_end_align ();
- Real h = paper_l()->get_var ("volta_spanner_height");
- Molecule volta (lookup_l ()->volta (h, w, t, no_vertical_start, no_vertical_end));
-
- Molecule num (lookup_l ()->text ("volta", number_str_, paper_l ()));
- Real dy = bar_arr_.top ()->extent (Y_AXIS) [UP] >
- bar_arr_[0]->extent (Y_AXIS) [UP];
- dy += 2 * h;
-
- for (int i = 0; i < note_column_arr_.size (); i++)
- dy = dy >? note_column_arr_[i]->extent (Y_AXIS)[BIGGER];
- dy -= h;
-
- Molecule two (lookup_l ()->text ("number", "2", paper_l ()));
- Real gap = two.dim_.x ().length () / 2;
- Offset off (num.dim_.x ().length () + gap,
- h / internote_f - gap);
- num.translate (off);
- mol_p->add_molecule (volta);
- mol_p->add_molecule (num);
- mol_p->translate (Offset (0, dy));
- return mol_p;
-}
-
void
-Volta_spanner::do_add_processing ()
+Volta_spanner::set_interface (Grob*)
{
- if (bar_arr_.size ())
- {
- set_bounds (LEFT, bar_arr_[0]);
- set_bounds (RIGHT, bar_arr_.top ());
- }
}
/*
- Originally the following comment existed here
- "in most cases, it's a lot better not no have height...",
- but problems existed with collision between volta spanner
- and above staff or lyrics for multi-staff music, so the proper
- height is now being returned. Additional space should still
- be added elsewhere so lyrics from above staff do not sit on
- volta spanner. (Roy R. Rankin)
+ this is too complicated. Yet another version of side-positioning,
+ badly implemented.
+
+ --
+
+ * Should look for system_start_delim to find left edge of staff.
+
*/
-Interval
-Volta_spanner::dim_callback (Dimension_cache const *c)
-{
- Volta_spanner * v = dynamic_cast<Volta_spanner*> (c->element_l ());
- Real h = v->paper_l()->get_var ("volta_spanner_height") * 2.;
- return Interval (0., h);
-}
-void
-Volta_spanner::do_post_processing ()
+MAKE_SCHEME_CALLBACK(Volta_spanner,brew_molecule,1);
+SCM
+Volta_spanner::brew_molecule (SCM smob)
{
- if (bar_arr_.size())
- translate_axis (bar_arr_[0]->extent (Y_AXIS)[UP], Y_AXIS);
- translate_axis (get_broken_left_end_align (), X_AXIS);
-}
+ Grob *me = unsmob_grob (smob);
+ Link_array<Item> bar_arr
+ = Pointer_group_interface__extract_elements (me, (Item*)0, "bars");
-void
-Volta_spanner::do_substitute_element_pointer (Score_element* o, Score_element* n)
-{
- if (Note_column* c = dynamic_cast <Note_column*> (o))
- note_column_arr_.substitute (c, dynamic_cast<Note_column*> (n));
- else if (Bar* c = dynamic_cast <Bar*> (o))
- bar_arr_.substitute (c, dynamic_cast<Bar*> (n));
-}
+ if (!bar_arr.size ())
+ return SCM_EOL;
+
+ bool no_vertical_start = false;
+ bool no_vertical_end = to_boolean (me->get_grob_property ("last-volta"));
+ Spanner *orig_span = dynamic_cast<Spanner*> (me->original_l_);
+
+ bool first_bracket = orig_span && (orig_span->broken_into_l_arr_[0] == (Spanner*)me);
+ bool last_bracket = orig_span && (orig_span->broken_into_l_arr_.top () == (Spanner*)me);
+
+ no_vertical_start = orig_span && !first_bracket;
+ no_vertical_end = orig_span && !last_bracket;
+
+ Real staff_thick = me->paper_l ()->get_var ("stafflinethickness");
+ Real half_space = 0.5;
+
+ Item * bound = dynamic_cast<Spanner*>(me)->get_bound (LEFT);
+
+ /*
+ not a start, but really broken in two
+ */
+ Real left =0.;
+ if (bound->break_status_dir () == RIGHT)
+ {
+ Paper_column *pc = bound->column_l ();
+ left = pc->extent (pc, X_AXIS)[RIGHT] - bound->relative_coordinate (pc, X_AXIS);
+ }
+ else
+ {
+ /*
+ the volta spanner is attached to the bar-line, which is moved
+ to the right. We don't need to compensate for the left edge.
+ */
+ }
+
+ Real w = dynamic_cast<Spanner*>(me)->spanner_length () - left - half_space;
+ Real h = gh_scm2double (me->get_grob_property ("height"));
+ Real t = staff_thick * gh_scm2double (me->get_grob_property ("thickness"));
+
+ /*
+ ugh: should build from line segments.
+ */
+ SCM at = (gh_list (ly_symbol2scm ("volta"),
+ gh_double2scm (h),
+ gh_double2scm (w),
+ gh_double2scm (t),
+ gh_int2scm (no_vertical_start),
+ gh_int2scm (no_vertical_end),
+ SCM_UNDEFINED));
+
+ Box b (Interval (0, w), Interval (0, h));
+ Molecule mol (b, at);
+ SCM text = me->get_grob_property("text");
+ SCM properties = gh_list (me->mutable_property_alist_, me->immutable_property_alist_,SCM_UNDEFINED);
+ Molecule num = Text_item::text2molecule (me, text, properties);
+
+ mol.add_at_edge (X_AXIS, LEFT, num, - num.extent (X_AXIS).length ()
+ - 1.0);
+ mol.translate_axis (left, X_AXIS);
+ return mol.smobbed_copy ();
+}
+
+
void
-Volta_spanner::add_bar (Bar* c)
+Volta_spanner::add_bar (Grob *me, Item* b)
{
- bar_arr_.push (c);
- add_dependency (c);
+ Pointer_group_interface::add_element(me, "bars",b);
+ Side_position::add_support (me,b);
+ add_bound_item (dynamic_cast<Spanner*>(me), b);
}
void
-Volta_spanner::add_column (Note_column* c)
+Volta_spanner::add_column (Grob*me, Grob* c)
{
- note_column_arr_.push (c);
- add_dependency (c);
+ Side_position::add_support (me,c);
}
-
-
projects / lilypond.git / blobdiff