-/*
-' separating-line-group-engraver.cc -- implement Separating_line_group_engraver
-
+/*
+ separating-line-group-engraver.cc -- implement Separating_line_group_engraver
+
source file of the GNU LilyPond music typesetter
-
- (c) 1998--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
+
+ (c) 1998--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
+
+#include "engraver.hh"
#include "separating-group-spanner.hh"
#include "separation-item.hh"
#include "paper-column.hh"
-#include "paper-def.hh"
-#include "engraver.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;
+ }
+
+ 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:
- Item * break_malt_p_;
- Item * musical_malt_p_;
+ Item *break_item_;
+ Item *musical_item_;
+ Item *last_musical_item_;
+
+ Spacings current_spacings_;
+ Spacings last_spacings_;
- Spanner * sep_span_p_;
-
- virtual void acknowledge_grob (Grob_info);
- virtual void initialize ();
+ Spanner *sep_span_;
+
+ DECLARE_ACKNOWLEDGER (item);
+ void process_music ();
virtual void finalize ();
- virtual void stop_translation_timestep ();
+ void stop_translation_timestep ();
+ void start_translation_timestep ();
public:
- TRANSLATOR_DECLARATIONS(Separating_line_group_engraver);
+ TRANSLATOR_DECLARATIONS (Separating_line_group_engraver);
};
Separating_line_group_engraver::Separating_line_group_engraver ()
{
- sep_span_p_ = 0;
- break_malt_p_ = 0;
- musical_malt_p_ =0;
+ sep_span_ = 0;
+ break_item_ = 0;
+ musical_item_ = 0;
}
void
-Separating_line_group_engraver::initialize ()
+Separating_line_group_engraver::process_music ()
{
- sep_span_p_ = new Spanner (get_property ("SeparatingGroupSpanner"));
+ if (!sep_span_)
+ {
+ sep_span_ = make_spanner ("SeparatingGroupSpanner", SCM_EOL);
- announce_grob (sep_span_p_, 0);
- sep_span_p_->set_bound (LEFT, unsmob_grob (get_property ("currentCommandColumn")));
+ sep_span_->set_bound (LEFT, unsmob_grob (get_property ("currentCommandColumn")));
+ }
}
-
void
Separating_line_group_engraver::finalize ()
{
- sep_span_p_->set_bound (RIGHT, unsmob_grob (get_property ("currentCommandColumn")));
- typeset_grob (sep_span_p_);
- sep_span_p_ =0;
+ if (!sep_span_)
+ return;
+
+ SCM ccol = get_property ("currentCommandColumn");
+ Grob *column = unsmob_grob (ccol);
+
+ sep_span_->set_bound (RIGHT, unsmob_grob (ccol));
+ sep_span_ = 0;
+
+ if (last_spacings_.staff_spacing_
+ && last_spacings_.staff_spacing_->get_column () == column)
+ last_spacings_.staff_spacing_->suicide ();
}
void
-Separating_line_group_engraver::acknowledge_grob (Grob_info i)
+Separating_line_group_engraver::acknowledge_item (Grob_info i)
{
- Item * it = dynamic_cast <Item *> (i.grob_l_);
- if (!it)
+ Item *it = i.item ();
+ if (it->get_parent (X_AXIS)
+ && it->get_parent (X_AXIS) == it->get_parent (Y_AXIS)
+ && Axis_group_interface::has_axis (it->get_parent (X_AXIS), X_AXIS)
+ && Axis_group_interface::has_axis (it->get_parent (Y_AXIS), Y_AXIS))
return;
- if (it->parent_l (X_AXIS)
- && it->parent_l (X_AXIS)->has_extent_callback_b
- (Axis_group_interface::group_extent_callback_proc, X_AXIS))
+
+ if (to_boolean (it->get_property ("no-spacing-rods")))
return;
-
- bool ib =Item::breakable_b (it);
- Item *&p_ref_ (ib ? break_malt_p_
- : musical_malt_p_);
+ if (Note_spacing::has_interface (it))
+ {
+ current_spacings_.note_spacings_.push_back (it);
+ return;
+ }
+
+ bool ib = Item::is_non_musical (it);
+ Item *&p_ref_ (ib ? break_item_
+ : musical_item_);
if (!p_ref_)
{
- p_ref_ = new Item
- (get_property ("SeparationItem"));
-
+ p_ref_ = make_item ("SeparationItem", SCM_EOL);
+
if (ib)
- p_ref_->set_grob_property ("breakable", SCM_BOOL_T);
- announce_grob (p_ref_, 0);
+ {
+ p_ref_->set_property ("non-musical", SCM_BOOL_T);
+ context ()->set_property ("breakableSeparationItem", p_ref_->self_scm ());
+ }
+
+ if (to_boolean (get_property ("createSpacing"))
+ && p_ref_ == break_item_)
+ {
+ Item *it = make_item ("StaffSpacing", SCM_EOL);
+ current_spacings_.staff_spacing_ = it;
+ Pointer_group_interface::add_grob (it, ly_symbol2scm ("left-items"),
+ break_item_);
+
+ 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 (break_item_);
+ }
+ }
}
- Separation_item::add_item (p_ref_,it);
+
+ if (Accidental_placement::has_interface (it))
+ Separation_item::add_conditional_item (p_ref_, it);
+ else
+ Separation_item::add_item (p_ref_, it);
}
void
-Separating_line_group_engraver::stop_translation_timestep ()
+Separating_line_group_engraver::start_translation_timestep ()
{
- if (break_malt_p_)
+ if (break_item_)
{
- Separating_group_spanner::add_spacing_unit (sep_span_p_, break_malt_p_);
-
- typeset_grob (break_malt_p_);
- break_malt_p_ =0;
+ context ()->unset_property (ly_symbol2scm ("breakableSeparationItem"));
+ break_item_ = 0;
}
+}
+
+void
+Separating_line_group_engraver::stop_translation_timestep ()
+{
+ if (break_item_)
+ Separating_group_spanner::add_spacing_unit (sep_span_, break_item_);
- if (musical_malt_p_)
+ if (Item *sp = current_spacings_.staff_spacing_)
{
- Separating_group_spanner::add_spacing_unit (sep_span_p_, musical_malt_p_);
- typeset_grob (musical_malt_p_);
+ /*
+ TODO: should really look at the left-items of following
+ note-spacing grobs.
+ */
+ if (musical_item_)
+ Pointer_group_interface::add_grob (sp, ly_symbol2scm ("right-items"),
+ musical_item_);
}
- musical_malt_p_ =0;
-}
+ if (!current_spacings_.is_empty ())
+ last_spacings_ = current_spacings_;
+ current_spacings_.clear ();
+ if (musical_item_)
+ Separating_group_spanner::add_spacing_unit (sep_span_, musical_item_);
+ musical_item_ = 0;
+}
+ADD_ACKNOWLEDGER (Separating_line_group_engraver, item);
+ADD_TRANSLATOR (Separating_line_group_engraver,
+ /* doc */ "Generates objects for computing spacing parameters.",
-ENTER_DESCRIPTION(Separating_line_group_engraver,
-/* descr */ "Generates objects for computing spacing parameters.",
-/* creats*/ "SeparationItem SeparatingGroupSpanner",
-/* acks */ "grob-interface",
-/* reads */ "",
-/* write */ "");
+ /* create */
+ "SeparationItem "
+ "SeparatingGroupSpanner "
+ "StaffSpacing",
+ /* read */ "createSpacing",
+ /* write */ "breakableSeparationItem");
projects / lilypond.git / blobdiff