source file of the GNU LilyPond music typesetter
- (c) 1997--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ (c) 1997--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "paper-column.hh"
-#include "moment.hh"
-#include "paper-score.hh"
-#include "warn.hh"
#include "axis-group-interface.hh"
-#include "spaceable-grob.hh"
-#include "text-interface.hh"
-#include "lookup.hh"
+#include "break-align-interface.hh"
#include "font-interface.hh"
-#include "output-def.hh"
-#include "pointer-group-interface.hh"
#include "grob-array.hh"
-#include "system.hh"
-#include "spring.hh"
#include "lookup.hh"
+#include "lookup.hh"
+#include "moment.hh"
+#include "output-def.hh"
+#include "paper-score.hh"
+#include "pointer-group-interface.hh"
+#include "rhythmic-head.hh"
#include "separation-item.hh"
+#include "skyline-pair.hh"
+#include "spaceable-grob.hh"
+#include "spring.hh"
#include "string-convert.hh"
+#include "system.hh"
+#include "text-interface.hh"
+#include "warn.hh"
Grob *
Paper_column::clone () const
Direction d = LEFT;
do
{
- skys[d].set_minimum_height (0.0);
- extract_grob_set (cols[d], "elements", elts);
-
- for (vsize i = 0; i < elts.size (); i++)
- if (Separation_item::has_interface (elts[i]))
- {
- Skyline_pair *sp = Skyline_pair::unsmob (elts[i]->get_property ("horizontal-skylines"));
- if (sp)
- skys[d].merge ((*sp)[-d]);
- }
+ Skyline_pair *sp = Skyline_pair::unsmob (cols[d]->get_property ("horizontal-skylines"));
+ if (sp)
+ skys[d] = (*sp)[-d];
}
while (flip (&d) != LEFT);
+ skys[RIGHT].merge (Separation_item::conditional_skyline (right, left));
+
return max (0.0, skys[LEFT].distance (skys[RIGHT]));
}
+Interval
+Paper_column::break_align_width (Grob *me)
+{
+ Grob *p = me->get_parent (X_AXIS);
+
+ if (is_musical (me))
+ {
+ me->programming_error ("tried to get break-align-width of a non-musical column");
+ return Interval (0, 0) + me->relative_coordinate (p, X_AXIS);
+ }
+
+ Grob *align = Pointer_group_interface::find_grob (me, ly_symbol2scm ("elements"),
+ Break_alignment_interface::has_interface);
+ if (!align)
+ return Interval (0, 0) + me->relative_coordinate (p, X_AXIS);
+
+ return align->extent (p, X_AXIS);
+}
+
/*
Print a vertical line and the rank number, to aid debugging.
*/
return SCM_UNSPECIFIED;
}
+/* FIXME: This is a hack that we use to identify columns that used to
+ contain note-heads but whose note-heads were moved by one of the ligature
+ engravers. Once the ligature engravers are fixed to behave nicely, this
+ function can be removed.
+*/
+bool
+Paper_column::is_extraneous_column_from_ligature (Grob *me)
+{
+ if (!is_musical (me))
+ return false;
+
+ // If all the note-heads that I think are my children actually belong
+ // to another column, then I am extraneous.
+ extract_grob_set (me, "elements", elts);
+ bool has_notehead = false;
+ for (vsize i = 0; i < elts.size (); i++)
+ {
+ if (Rhythmic_head::has_interface (elts[i]))
+ {
+ has_notehead = true;
+ if (dynamic_cast<Item*> (elts[i])->get_column () == me)
+ return false;
+ }
+ }
+ return has_notehead;
+}
+
ADD_INTERFACE (Paper_column,
- "@code{Paper_column} objects form the top-most X-parents for items."
- " The are two types of columns: musical columns, where are attached to, and "
- " non-musical columns, where bar-lines, clefs etc. are attached to. "
- " The spacing engine determines the X-positions of these objects."
-
- "\n\n"
- "They are\n"
- " numbered, the first (leftmost) is column 0. Numbering happens before\n"
- " line-breaking, and columns are not renumbered after line breaking.\n"
- " Since many columns go unused, you should only use the rank field to\n"
- " get ordering information. Two adjacent columns may have\n"
- " non-adjacent numbers.\n",
-
+ "@code{Paper_column} objects form the top-most X@tie{}parents"
+ " for items. There are two types of columns: musical columns,"
+ " where are attached to, and non-musical columns, where"
+ " bar-lines, clefs, etc., are attached to. The spacing engine"
+ " determines the X@tie{}positions of these objects.\n"
+ "\n"
+ "They are numbered, the first (leftmost) is column@tie{}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.",
/* properties */
"between-cols "
"bounded-by-me "
+ "full-measure-extra-space "
"grace-spacing "
"labels "
"line-break-system-details "
"shortest-starter-duration "
"spacing "
"used "
- "when ");
+ "when "
+ );