source file of the GNU LilyPond music typesetter
- (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include "moment.hh"
#include "paper-column.hh"
+
+#include "moment.hh"
#include "paper-score.hh"
#include "warn.hh"
#include "axis-group-interface.hh"
#include "spaceable-grob.hh"
-#include "stencil.hh"
-#include "text-item.hh"
+#include "text-interface.hh"
#include "lookup.hh"
#include "font-interface.hh"
#include "output-def.hh"
+#include "pointer-group-interface.hh"
+#include "grob-array.hh"
-
-
+Grob *
+Paper_column::clone (int count) const
+{
+ return new Paper_column (*this, count);
+}
ADD_INTERFACE (Paper_column, "paper-column-interface",
"@code{Paper_column} objects form the top-most X-parents for items. "
" 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"
- "\n"
- ,
+ "\n",
"between-cols when bounded-by-me "
- "shortest-playing-duration shortest-starter-duration");
+ "page-penalty shortest-playing-duration shortest-starter-duration");
void
Paper_column::do_break_processing ()
Item::do_break_processing ();
}
-
int
-Paper_column::get_rank (Grob*me)
+Paper_column::get_rank (Grob *me)
{
- return dynamic_cast<Paper_column*> (me)->rank_;
+ return dynamic_cast<Paper_column *> (me)->rank_;
}
-System*
+System *
Paper_column::get_system () const
{
return system_;
}
-Paper_column*
+Paper_column *
Paper_column::get_column () const
{
- return (Paper_column*) (this);
+ return (Paper_column *) (this);
}
-Paper_column::Paper_column (SCM l)
- : Item (l) // guh.?
+Paper_column::Paper_column (SCM l, Object_key const *key)
+ : Item (l, key) // guh.?
{
system_ = 0;
rank_ = -1;
}
+Paper_column::Paper_column (Paper_column const &src, int count)
+ : Item (src, count)
+{
+ system_ = 0;
+ rank_ = src.rank_;
+}
+
Moment
-Paper_column::when_mom (Grob*me)
+Paper_column::when_mom (Grob *me)
{
SCM m = me->get_property ("when");
- Moment s (0);
- if (unsmob_moment (m))
- {
- return *unsmob_moment (m);
- }
- return s;
+ if (Moment *when = unsmob_moment (m))
+ return *when;
+ return Moment (0);
}
bool
}
return s != Moment (0);
}
-
bool
-Paper_column::is_used (Grob*me)
+Paper_column::is_used (Grob *me)
{
- return scm_is_pair (me->get_property ("elements")) || Item::is_breakable (me)
- || scm_is_pair (me->get_property ("bounded-by-me"))
- ;
+ extract_grob_set (me, "elements", elts);
+ if (elts.size ())
+ return true;
+
+ extract_grob_set (me, "bounded-by-me", bbm);
+ if (bbm.size ())
+ return true;
+ return Item::is_breakable (me);
}
/*
- Print a vertical line and the rank number, to aid debugging.
- */
+ Print a vertical line and the rank number, to aid debugging.
+*/
-MAKE_SCHEME_CALLBACK (Paper_column,print,1);
+MAKE_SCHEME_CALLBACK (Paper_column, print, 1);
SCM
Paper_column::print (SCM p)
{
Grob *me = unsmob_grob (p);
String r = to_string (Paper_column::get_rank (me));
+
+ Moment *mom = unsmob_moment (me->get_property ("when"));
+ String when = mom ? mom->to_string () : "?/?";
+
SCM properties = Font_interface::text_font_alist_chain (me);
- SCM scm_mol = Text_interface::interpret_markup (me->get_paper ()->self_scm (),
- properties,
- scm_makfrom0str (r.to_str0 ()));
+ SCM scm_mol = Text_interface::interpret_markup (me->get_layout ()->self_scm (),
+ properties,
+ scm_makfrom0str (r.to_str0 ()));
+ SCM when_mol = Text_interface::interpret_markup (me->get_layout ()->self_scm (),
+ properties,
+ scm_makfrom0str (when.to_str0 ()));
Stencil t = *unsmob_stencil (scm_mol);
+ t.add_at_edge (Y_AXIS, DOWN, *unsmob_stencil (when_mol), 0.1, 0.1);
t.align_to (X_AXIS, CENTER);
t.align_to (Y_AXIS, DOWN);
-
+
Stencil l = Lookup::filled_box (Box (Interval (-0.01, 0.01),
Interval (-2, -1)));
t.add_stencil (l);
- return t.smobbed_copy ();
+ return t.smobbed_copy ();
}
/*
This is all too hairy. We use bounded-by-me to make sure that some
columns are kept "alive". Unfortunately, when spanners are suicided,
- this falls apart again. (sigh.)
+ this falls apart again, because suicided spanners are still in
+ bounded-by-me
- THIS IS BROKEN KLUDGE. WE SHOULD INVENT SOMETHING BETTER.
- */
-MAKE_SCHEME_CALLBACK (Paper_column,before_line_breaking,1);
+ THIS IS BROKEN KLUDGE. WE SHOULD INVENT SOMETHING BETTER.
+*/
+MAKE_SCHEME_CALLBACK (Paper_column, before_line_breaking, 1);
SCM
Paper_column::before_line_breaking (SCM grob)
{
Grob *me = unsmob_grob (grob);
- SCM c = me->get_property ("bounded-by-me");
- SCM *ptrptr = &c;
+ SCM bbm = me->get_object ("bounded-by-me");
+ Grob_array *ga = unsmob_grob_array (bbm);
+ if (!ga)
+ return SCM_UNSPECIFIED;
- while (scm_is_pair (*ptrptr))
+ Link_array<Grob> &array (ga->array_reference ());
+
+ for (int i = array.size (); i--;)
{
- Grob * g = unsmob_grob (scm_car (*ptrptr));
+ Grob *g = array[i];
if (!g || !g->is_live ())
- {
- *ptrptr = scm_cdr (*ptrptr);
- }
- else
- {
- ptrptr = SCM_CDRLOC (*ptrptr);
+ { // UGH . potentially quadratic.
+ array.del (i);
}
}
- me->set_property ("bounded-by-me", c);
return SCM_UNSPECIFIED;
}
projects / lilypond.git / blobdiff