source file of the GNU LilyPond music typesetter
- (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
+
#include "moment.hh"
#include "paper-column.hh"
#include "paper-score.hh"
#include "debug.hh"
#include "axis-group-interface.hh"
-#include "spaceable-element.hh"
+#include "spaceable-grob.hh"
+#include "molecule.hh"
+#include "text-item.hh"
+#include "lookup.hh"
+#include "font-interface.hh"
+
+
+
+
+
+ADD_INTERFACE (Paper_column, "paper-column-interface",
+ " Paper_columns form the top-most item parent. (The Paper_columns X
+ parent is System, which is a spanner.)
+
+ Paper_columns form the units for the spacing engine. They are
+ numbered, the first (leftmost) is column 0. Numbering happens before
+ line-breaking, and columns are not renumbered after line breaking.
+
+ Since many columns go unused, you should only use the rank field to
+ get ordering information. Two adjacent columns may have
+ non-adjacent numbers.
+
+ Don't be confused by right-items: each spacing wish can also contain
+ a number of items, with which a spacing constraint may be kept. It's
+ a little baroque, but it might come in handy later on?
+
+",
+ "between-cols between-system-string when bounded-by-me shortest-playing-duration shortest-starter-duration");
+
void
Paper_column::do_break_processing ()
{
- Spaceable_element::remove_interface(this);
+ Spaceable_grob::remove_interface (this);
Item::do_break_processing ();
}
int
-Paper_column::rank_i(Score_element*me)
+Paper_column::rank_i (Grob*me)
{
return dynamic_cast<Paper_column*> (me)->rank_i_;
}
-Line_of_score*
-Paper_column::line_l() const
+System*
+Paper_column::line_l () const
{
return line_l_;
}
Paper_column*
Paper_column::column_l () const
{
- return (Paper_column*)(this);
+ return (Paper_column*) (this);
}
Paper_column::Paper_column (SCM l)
: Item (l) // guh.?
{
- Axis_group_interface::set_interface (this);
- Axis_group_interface::set_axes (this, X_AXIS, X_AXIS);
- Spaceable_element::set_interface (this);
-
line_l_=0;
rank_i_ = -1;
}
Moment
-Paper_column::when_mom (Score_element*me)
+Paper_column::when_mom (Grob*me)
{
- SCM m = me->get_elt_property ("when");
+ SCM m = me->get_grob_property ("when");
Moment s (0);
if (unsmob_moment (m))
{
}
return s;
}
-
+
bool
-Paper_column::musical_b () const
+Paper_column::musical_b (Grob *me)
{
- SCM m = get_elt_property ("shortest-starter-duration");
+ SCM m = me->get_grob_property ("shortest-starter-duration");
Moment s (0);
if (unsmob_moment (m))
{
s = *unsmob_moment (m);
}
- return s != Moment(0);
+ return s != Moment (0);
+
}
+
bool
-Paper_column::used_b (Score_element*me )
+Paper_column::used_b (Grob*me)
{
- return gh_pair_p (me->get_elt_property ("elements")) || Item::breakable_b (me)
- || gh_pair_p (me->get_elt_property ("bounded-by-me"))
+ return gh_pair_p (me->get_grob_property ("elements")) || Item::breakable_b (me)
+ || gh_pair_p (me->get_grob_property ("bounded-by-me"))
;
}
+
+/*
+ Print a vertical line and the rank number, to aid debugging.
+ */
+
+MAKE_SCHEME_CALLBACK(Paper_column,brew_molecule,1);
+SCM
+Paper_column::brew_molecule (SCM p)
+{
+ Grob *me = unsmob_grob (p);
+
+ String r = to_str (Paper_column::rank_i (me));
+ SCM properties = Font_interface::font_alist_chain (me);
+
+ Molecule t = Text_item::text2molecule (me, ly_str02scm (r.ch_C()),
+ properties);
+ t.align_to (X_AXIS, CENTER);
+ t.align_to (Y_AXIS, DOWN);
+
+ Molecule l = Lookup::filledbox (Box (Interval (-0.01, 0.01),
+ Interval (-2, -1)));
+
+ t.add_molecule (l);
+ return t.smobbed_copy ();
+}
+