/*
- system.cc -- implement System
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1996--2010 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 1996--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
#include "system.hh"
#include "all-font-metrics.hh"
#include "axis-group-interface.hh"
#include "grob-array.hh"
+#include "hara-kiri-group-spanner.hh"
#include "international.hh"
#include "lookup.hh"
#include "main.hh"
#include "output-def.hh"
+#include "page-layout-problem.hh"
#include "paper-column.hh"
#include "paper-score.hh"
#include "paper-system.hh"
{
System *child = dynamic_cast<System*> (broken_intos_[i]);
child->all_elements_->remove_duplicates ();
+ for (vsize j = 0; j < child->all_elements_->size (); j++)
+ {
+ Grob *g = child->all_elements_->grob (j);
+
+ (void) g->get_property ("after-line-breaking");
+ }
}
if (be_verbose_global)
- message (_f ("Element count %d.", count + element_count ()));
+ message (_f ("Element count %d", count + element_count ()) + "\n");
}
SCM
for (vsize j = 0; j < c.size (); j++)
{
c[j]->translate_axis (breaking[i].config_[j], X_AXIS);
- dynamic_cast<Paper_column *> (c[j])->system_ = system;
+ dynamic_cast<Paper_column *> (c[j])->set_system (system);
/* collect the column labels */
SCM col_labels = c[j]->get_property ("labels");
if (scm_is_pair (col_labels))
ga = unsmob_grob_array (scm_ga);
}
- p->rank_ = ga->size ();
+ p->set_rank (ga->size ());
ga->add (p);
Axis_group_interface::add_element (this, p);
void
System::post_processing ()
{
- for (vsize i = 0; i < all_elements_->size (); i++)
- {
- Grob *g = all_elements_->grob (i);
-
- (void) g->get_property ("after-line-breaking");
- }
-
Interval iv (extent (this, Y_AXIS));
if (iv.is_empty ())
programming_error ("system with empty extent");
Interval staff_refpoints;
extract_grob_set (this, "spaceable-staves", staves);
for (vsize i = 0; i < staves.size (); i++)
- staff_refpoints.add_point (staves[i]->relative_coordinate (this, Y_AXIS));
+ if (staves[i]->is_live ())
+ staff_refpoints.add_point (staves[i]->relative_coordinate (this, Y_AXIS));
pl->set_property ("staff-refpoint-extent", ly_interval2scm (staff_refpoints));
pl->set_property ("system-grob", this->self_scm ());
&& 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_)
+ if (Paper_column::is_breakable (c) && !c->get_system ())
ret.push_back (c);
i++;
}
return dynamic_cast<System*> (system_grob);
}
+Grob *
+System::get_vertical_alignment ()
+{
+ extract_grob_set (this, "elements", elts);
+ Grob *ret = 0;
+ for (vsize i = 0; i < elts.size (); i++)
+ if (Align_interface::has_interface (elts[i]))
+ {
+ if (ret)
+ programming_error ("found multiple vertical alignments in this system");
+ ret = elts[i];
+ }
+
+ if (!ret)
+ programming_error ("didn't find a vertical alignment in this system");
+ return ret;
+}
+
+// Finds the furthest staff in the given direction whose x-extent
+// overlaps with the given interval.
+Grob *
+System::get_extremal_staff (Direction dir, Interval const &iv)
+{
+ Grob *align = get_vertical_alignment ();
+ if (!align)
+ return 0;
+
+ extract_grob_set (align, "elements", elts);
+ vsize start = (dir == UP) ? 0 : elts.size () - 1;
+ vsize end = (dir == UP) ? elts.size () : VPOS;
+ for (vsize i = start; i != end; i += dir)
+ {
+ if (Hara_kiri_group_spanner::has_interface (elts[i]))
+ Hara_kiri_group_spanner::consider_suicide (elts[i]);
+
+ Interval intersection = elts[i]->extent (this, X_AXIS);
+ intersection.intersect (iv);
+ if (elts[i]->is_live () && !intersection.is_empty ())
+ return elts[i];
+ }
+ return 0;
+}
+
+Interval
+System::part_of_line_pure_height (vsize start, vsize end, bool begin)
+{
+ Grob *alignment = get_vertical_alignment ();
+ if (!alignment)
+ {
+ programming_error("system does not have a vertical alignment");
+ return Interval();
+ }
+ extract_grob_set (alignment, "elements", staves);
+ vector<Real> offsets = Align_interface::get_minimum_translations (alignment, staves, Y_AXIS, true, start, end);
+
+ Interval ret;
+ for (vsize i = 0; i < staves.size (); ++i)
+ {
+ Interval iv = begin?
+ Axis_group_interface::begin_of_line_pure_height (staves[i], start) :
+ Axis_group_interface::rest_of_line_pure_height (staves[i], start, end);
+ if (i<offsets.size())
+ iv.translate (offsets[i]);
+ ret.unite (iv);
+ }
+
+ extract_grob_set (this, "elements", elts);
+ for (vsize i = 0; i < elts.size (); ++i)
+ {
+ Grob *g = elts[i];
+ if (!dynamic_cast<Paper_column *> (g) && !Axis_group_interface::has_interface (g))
+ {
+ Interval iv = g->pure_height (this, start, end);
+ Item *it = dynamic_cast<Item*> (g);
+ Grob *col = it ? it->get_column () : 0;
+ bool item_at_beginning = col && (Paper_column::get_rank (col) == (int) start);
+
+ if (g->is_live () && begin == item_at_beginning)
+ ret.unite (iv);
+ }
+ }
+ return ret;
+}
+
+Interval
+System::begin_of_line_pure_height (vsize start, vsize end)
+{
+ return part_of_line_pure_height (start, end, true);
+}
+
+Interval
+System::rest_of_line_pure_height (vsize start, vsize end)
+{
+ return part_of_line_pure_height (start, end, false);
+}
+
ADD_INTERFACE (System,
"This is the top-level object: Each object in a score"
" ultimately has a @code{System} object as its X and"
projects / lilypond.git / blobdiff