#include "tweak-registration.hh"
#include "warn.hh"
+extern bool debug_skylines;
+
System::System (System const &src, int count)
: Spanner (src, count)
{
System *system = dynamic_cast<System *> (broken_intos_[i]);
system->post_processing ();
+ system->build_skylines ();
+ if (i > 0)
+ {
+ System *prev = dynamic_cast<System*> (broken_intos_[i-1]);
+ Real r = prev->skylines_[DOWN].distance (system->skylines_[UP]);
+ system->set_property ("skyline-distance", scm_from_double (r));
+ }
scm_vector_set_x (lines, scm_from_int (i),
system->get_paper_system ());
ga = unsmob_grob_array (scm_ga);
}
- p->rank_
- = ga->size ()
- ? Paper_column::get_rank (ga->array ().back ()) + 1
- : 0;
+ p->rank_ = ga->size ();
ga->add (p);
Axis_group_interface::add_element (this, p);
Stencil sys_stencil (Box (x, y),
scm_cons (ly_symbol2scm ("combine-stencil"),
exprs));
+ if (debug_skylines)
+ {
+ sys_stencil.add_stencil (points_to_line_stencil (skylines_[UP].to_points ()).in_color (255, 0, 0));
+ sys_stencil.add_stencil (points_to_line_stencil (skylines_[DOWN].to_points ()).in_color (0, 255, 0));
+ }
Grob *left_bound = this->get_bound (LEFT);
SCM prop_init = left_bound->get_property ("line-break-system-details");
/* information that the page breaker might need */
Grob *right_bound = this->get_bound (RIGHT);
+ pl->set_property ("skyline-distance", get_property ("skyline-distance"));
pl->set_property ("page-break-permission", right_bound->get_property ("page-break-permission"));
pl->set_property ("page-turn-permission", right_bound->get_property ("page-turn-permission"));
pl->set_property ("page-break-penalty", right_bound->get_property ("page-break-penalty"));
left = left->get_column ();
right = right->get_column ();
+
extract_grob_set (this, "columns", cols);
- vsize i = 0;
- while (i < cols.size ()
- && cols[i] != left)
- i++;
+ vsize i = binary_search (cols, (Grob *) left,
+ Paper_column::less_than);
+
+ int end_rank = Paper_column::get_rank (right);
if (i < cols.size ())
i++;
while (i < cols.size ()
- && cols[i] != right)
+ && Paper_column::get_rank (cols[i]) < end_rank)
{
Paper_column *c = dynamic_cast<Paper_column *> (cols[i]);
if (Paper_column::is_breakable (c) && !c->system_)
return ret;
}
+
/** Return all columns, but filter out any unused columns , since they might
disrupt the spacing problem. */
vector<Grob*>
return columns;
}
+Grob*
+System::column (int which) const
+{
+ extract_grob_set (this, "columns", columns);
+ for (vsize i = 0; i < columns.size (); i++)
+ if (dynamic_cast<Paper_column*> (columns[i])->get_rank () == which)
+ return columns[i];
+ programming_error ("couldn't find the column of the requested index");
+ return columns[0];
+}
+
Paper_score*
System::paper_score () const
{
return dynamic_cast<System*> (system_grob);
}
+void
+System::build_skylines ()
+{
+ vector<Box> boxes;
+ for (vsize i = 0; i < all_elements_->size (); i++)
+ {
+ Grob *g = all_elements_->grob (i);
+ if (!unsmob_stencil (g->get_property ("stencil")))
+ continue;
+
+ Interval xiv = g->extent (this, X_AXIS);
+ Interval yiv = g->extent (this, Y_AXIS);
+ if (!xiv.is_empty () && !yiv.is_empty ())
+ boxes.push_back (Box (xiv, yiv));
+ }
+
+ SCM horizon_padding_scm = get_property ("skyline-horizontal-padding");
+ Real horizon_padding = robust_scm2double (horizon_padding_scm, 0);
+ skylines_[UP] = Skyline (boxes, horizon_padding, X_AXIS, UP);
+ skylines_[DOWN] = Skyline (boxes, horizon_padding, X_AXIS, DOWN);
+}
-ADD_INTERFACE (System, "system-interface",
+ADD_INTERFACE (System,
"This is the toplevel object: each object in a score "
"ultimately has a System object as its X and Y parent. ",
"columns "
"pure-Y-extent "
"spaceable-staves "
+ "skyline-distance "
+ "skyline-horizontal-padding "
)