source file of the GNU LilyPond music typesetter
- (c) 1998--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1998--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "separation-item.hh"
+
#include "paper-column.hh"
#include "warn.hh"
#include "group-interface.hh"
Paper_column * pc = item->get_column ();
- for (SCM s = me->get_grob_property ("conditional-elements"); gh_pair_p (s); s = ly_cdr (s))
+ for (SCM s = me->get_property ("conditional-elements"); scm_is_pair (s); s = scm_cdr (s))
{
- SCM elt = ly_car (s);
+ SCM elt = scm_car (s);
if (!unsmob_grob (elt))
continue;
continue; /*UGH UGH*/
}
- if (to_boolean (il->get_grob_property ("no-spacing-rods")))
+ if (to_boolean (il->get_property ("no-spacing-rods")))
{
continue;
}
}
}
- SCM pad = me->get_grob_property ("padding");
+ SCM pad = me->get_property ("padding");
- if (gh_number_p (pad))
- {
- w[RIGHT] += gh_scm2double (pad)/2;
- w[LEFT] -= gh_scm2double (pad)/2;
- }
+ w.widen (robust_scm2double (pad, 0.0));
return w;
}
Interval
Separation_item::width (Grob *me)
{
- SCM sw = me->get_grob_property ("extent-X");
- if (ly_number_pair_p (sw))
+ SCM sw = me->get_property ("X-extent");
+ if (is_number_pair (sw))
{
return ly_scm2interval (sw);
}
Paper_column * pc = item->get_column ();
Interval w;
- for (SCM s = me->get_grob_property ("elements"); gh_pair_p (s); s = ly_cdr (s))
+ for (SCM s = me->get_property ("elements"); scm_is_pair (s); s = scm_cdr (s))
{
- SCM elt = ly_car (s);
+ SCM elt = scm_car (s);
if (!unsmob_grob (elt))
continue;
continue; /*UGH UGH*/
}
- if (to_boolean (il->get_grob_property ("no-spacing-rods")))
+ if (to_boolean (il->get_property ("no-spacing-rods")))
{
continue;
}
Interval iv (il->extent (pc, X_AXIS));
- if (!iv.empty_b ())
+ if (!iv.is_empty ())
{
w.unite (iv);
}
}
- SCM pad = me->get_grob_property ("padding");
-
- if (gh_number_p (pad))
- {
- w[RIGHT] += gh_scm2double (pad)/2;
- w[LEFT] -= gh_scm2double (pad)/2;
- }
+ SCM pad = me->get_property ("padding");
+ w.widen (robust_scm2double (pad, 0.0));
- me->set_grob_property ("extent-X", ly_interval2scm (w));
-
+ me->set_property ("X-extent", ly_interval2scm (w));
return w;
- // add this->offset_ ? this-> relative_coordinate ()?
+}
+
+Interval
+Separation_item::relative_width (Grob * me, Grob * common)
+{
+ Interval iv = width (me);
+
+ return dynamic_cast<Item*>(me)->get_column ()->relative_coordinate (common, X_AXIS) + iv ;
+}
+
+
+/*
+ Try to find the break-aligned symbol in SEPARATION_ITEM that is
+ sticking out at direction D. The x size is put in LAST_EXT
+*/
+Grob*
+Separation_item::extremal_break_aligned_grob (Grob *separation_item, Direction d,
+ Interval * last_ext)
+{
+ Grob *col = dynamic_cast<Item*> (separation_item)->get_column ();
+ last_ext->set_empty ();
+ Grob *last_grob = 0;
+ for (SCM s = separation_item->get_property ("elements");
+ scm_is_pair (s); s = scm_cdr (s))
+ {
+ Grob * break_item = unsmob_grob (scm_car (s));
+
+ if (!scm_is_symbol (break_item->get_property ("break-align-symbol")))
+ continue;
+
+ Interval ext = break_item->extent (col, X_AXIS);
+
+ if (ext.is_empty ())
+ continue;
+ if (!last_grob
+ || (last_grob && d * (ext[d]- (*last_ext)[d]) > 0) )
+ {
+ *last_ext = ext;
+ last_grob = break_item;
+ }
+ }
+
+ return last_grob;
}
ADD_INTERFACE (Separation_item,"separation-item-interface",
- "Item that computes widths to generate spacing rods.
+ "Item that computes widths to generate spacing rods. "
+ "This is done in concert with @ref{separation-spanner-interface}."
+
+ ,
-Calc dimensions for the Separating_group_spanner; this has to be
-an item to get dependencies correct. It can't be an grob_group
-since these usually are in a different X_group
-",
- "extent-X conditional-elements elements");
+ "padding X-extent conditional-elements elements");