-/*
- separating-line-group-grav.cc -- implement Separating_line_group_engraver
-
- source file of the GNU LilyPond music typesetter
-
- (c) 1998--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
-
-#include "separating-line-group-engraver.hh"
-#include "separating-group-spanner.hh"
-#include "single-malt-grouping-item.hh"
+/*
+ This file is part of LilyPond, the GNU music typesetter.
+
+ Copyright (C) 1998--2015 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 "engraver.hh"
+
+#include "separation-item.hh"
#include "paper-column.hh"
-#include "paper-def.hh"
+#include "output-def.hh"
+#include "axis-group-interface.hh"
+#include "note-spacing.hh"
+#include "accidental-placement.hh"
+#include "context.hh"
+#include "spanner.hh"
+#include "grob-array.hh"
+#include "pointer-group-interface.hh"
+
+#include "translator.icc"
+
+struct Spacings
+{
+ Item *staff_spacing_;
+ vector<Item *> note_spacings_;
+
+ Spacings ()
+ {
+ staff_spacing_ = 0;
+ }
-Separating_line_group_engraver::Separating_line_group_engraver ()
+ bool is_empty () const
+ {
+ return !staff_spacing_ && !note_spacings_.size ();
+ }
+ void clear ()
+ {
+ staff_spacing_ = 0;
+ note_spacings_.clear ();
+ }
+};
+
+class Separating_line_group_engraver : public Engraver
+{
+protected:
+ Spacings current_spacings_;
+ Spacings last_spacings_;
+
+ void acknowledge_item (Grob_info);
+ void acknowledge_break_aligned (Grob_info);
+ void stop_translation_timestep ();
+ void start_translation_timestep ();
+
+ vector<Grob *> break_aligned_;
+public:
+ TRANSLATOR_DECLARATIONS (Separating_line_group_engraver);
+};
+
+Separating_line_group_engraver::Separating_line_group_engraver (Context *c)
+ : Engraver (c)
{
- sep_span_p_ = 0;
- break_malt_p_ = 0;
- nobreak_malt_p_ =0;
}
void
-Separating_line_group_engraver::do_creation_processing ()
+Separating_line_group_engraver::acknowledge_item (Grob_info i)
{
- sep_span_p_ = new Separating_group_spanner;
- announce_element (Score_element_info (sep_span_p_, 0));
- sep_span_p_->set_bound (LEFT, get_staff_info ().command_pcol_l ());
+ Item *it = i.item ();
+
+ if (has_interface<Note_spacing> (it))
+ {
+ current_spacings_.note_spacings_.push_back (it);
+ return;
+ }
+
+ if (Item::is_non_musical (it)
+ && !current_spacings_.staff_spacing_
+ && to_boolean (get_property ("createSpacing")))
+ {
+ Grob *col = unsmob<Grob> (get_property ("currentCommandColumn"));
+
+ current_spacings_.staff_spacing_ = make_item ("StaffSpacing", SCM_EOL);
+ context ()->set_property ("hasStaffSpacing", SCM_BOOL_T);
+
+ Pointer_group_interface::add_grob (current_spacings_.staff_spacing_,
+ ly_symbol2scm ("left-items"),
+ col);
+
+ if (!last_spacings_.note_spacings_.size ()
+ && last_spacings_.staff_spacing_)
+ {
+ SCM ri = last_spacings_.staff_spacing_->get_object ("right-items");
+ Grob_array *ga = unsmob<Grob_array> (ri);
+ if (!ga)
+ {
+ SCM ga_scm = Grob_array::make_array ();
+ last_spacings_.staff_spacing_->set_object ("right-items", ga_scm);
+ ga = unsmob<Grob_array> (ga_scm);
+ }
+
+ ga->clear ();
+ ga->add (col);
+ }
+ }
}
void
-Separating_line_group_engraver::do_removal_processing ()
+Separating_line_group_engraver::acknowledge_break_aligned (Grob_info gi)
{
- sep_span_p_->set_bound (RIGHT, get_staff_info ().command_pcol_l ());
- typeset_element (sep_span_p_);
- sep_span_p_ =0;
+ break_aligned_.push_back (gi.grob ());
}
void
-Separating_line_group_engraver::acknowledge_element (Score_element_info i)
+Separating_line_group_engraver::start_translation_timestep ()
{
- Item * it = dynamic_cast <Item *> (i.elem_l_);
- if (it && !it->parent_l (X_AXIS))
- {
- bool ib =it->breakable_b ();
- Single_malt_grouping_item *&p_ref_ (ib ? break_malt_p_
- : nobreak_malt_p_);
-
- if (!p_ref_)
- {
- p_ref_ = new Single_malt_grouping_item;
- if (ib)
- p_ref_->set_elt_property ("breakable", SCM_BOOL_T);
- announce_element (Score_element_info (p_ref_, 0));
- }
- p_ref_->add_item (it);
- }
+ context ()->unset_property (ly_symbol2scm ("hasStaffSpacing"));
}
void
-Separating_line_group_engraver::do_pre_move_processing ()
+Separating_line_group_engraver::stop_translation_timestep ()
{
- if (break_malt_p_)
+ for (vsize i = 0; i < break_aligned_.size (); i++)
{
- sep_span_p_->add_spacing_unit (break_malt_p_);
-
- typeset_element (break_malt_p_);
- break_malt_p_ =0;
- }
- if (nobreak_malt_p_)
- {
- sep_span_p_->add_spacing_unit (nobreak_malt_p_);
- typeset_element (nobreak_malt_p_);
- nobreak_malt_p_ =0;
+ SCM smob = break_aligned_[i]->self_scm ();
+
+ if (Item *sp = current_spacings_.staff_spacing_)
+ Pointer_group_interface::add_grob (sp, ly_symbol2scm ("left-break-aligned"), smob);
+
+ for (vsize j = 0; j < last_spacings_.note_spacings_.size (); j++)
+ Pointer_group_interface::add_grob (last_spacings_.note_spacings_[j],
+ ly_symbol2scm ("right-break-aligned"), smob);
}
+
+ if (!current_spacings_.is_empty ())
+ last_spacings_ = current_spacings_;
+
+ if (Item *sp = current_spacings_.staff_spacing_)
+ if (Grob *col = unsmob<Grob> (get_property ("currentMusicalColumn")))
+ Pointer_group_interface::add_grob (sp, ly_symbol2scm ("right-items"), col);
+
+ current_spacings_.clear ();
+ break_aligned_.clear ();
+}
+
+
+void
+Separating_line_group_engraver::boot ()
+{
+ ADD_ACKNOWLEDGER (Separating_line_group_engraver, item);
+ ADD_ACKNOWLEDGER (Separating_line_group_engraver, break_aligned);
}
+ADD_TRANSLATOR (Separating_line_group_engraver,
+ /* doc */
+ "Generate objects for computing spacing parameters.",
+ /* create */
+ "StaffSpacing ",
-ADD_THIS_TRANSLATOR( Separating_line_group_engraver);
+ /* read */
+ "createSpacing ",
+ /* write */
+ "hasStaffSpacing "
+ );
projects / lilypond.git / blobdiff