source file of the GNU LilyPond music typesetter
- (c) 1998--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1998--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "separating-group-spanner.hh"
#include "separation-item.hh"
#include "paper-column.hh"
-#include "paper-def.hh"
+#include "output-def.hh"
#include "engraver.hh"
#include "axis-group-interface.hh"
#include "note-spacing.hh"
-#include "group-interface.hh"
#include "accidental-placement.hh"
+#include "context.hh"
struct Spacings
{
staff_spacing_ = 0;
}
- bool empty( )const
+ bool is_empty () const
{
return !staff_spacing_ && !note_spacings_.size ();
}
void clear () {
staff_spacing_ = 0;
- note_spacings_.clear();
+ note_spacings_.clear ();
}
};
+
class Separating_line_group_engraver : public Engraver
{
protected:
- Item * break_malt_;
- Item * musical_malt_;
- Item * last_musical_malt_;
+ Item * break_item_;
+ Item * musical_item_;
+ Item * last_musical_item_;
Spacings current_spacings_;
Spacings last_spacings_;
Spanner * sep_span_;
virtual void acknowledge_grob (Grob_info);
- virtual void initialize ();
+ virtual void process_music ();
virtual void finalize ();
virtual void stop_translation_timestep ();
virtual 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_ = 0;
- break_malt_ = 0;
- musical_malt_ =0;
+ break_item_ = 0;
+ musical_item_ = 0;
}
void
-Separating_line_group_engraver::initialize ()
+Separating_line_group_engraver::process_music ()
{
- sep_span_ = new Spanner (get_property ("SeparatingGroupSpanner"));
- announce_grob(sep_span_, SCM_EOL);
- sep_span_->set_bound (LEFT, unsmob_grob (get_property ("currentCommandColumn")));
-}
+ if (!sep_span_)
+ {
+ sep_span_ = make_spanner ("SeparatingGroupSpanner", SCM_EOL);
+
+ sep_span_->set_bound (LEFT, unsmob_grob (get_property ("currentCommandColumn")));
+ }
+}
void
Separating_line_group_engraver::finalize ()
{
+ if (!sep_span_)
+ return ;
+
SCM ccol = get_property ("currentCommandColumn");
Grob *column = unsmob_grob (ccol);
sep_span_->set_bound (RIGHT, unsmob_grob (ccol));
- typeset_grob (sep_span_);
- sep_span_ =0;
+ sep_span_ = 0;
- for (int i= 0 ; i < last_spacings_.note_spacings_.size(); i++)
+ for (int i = 0 ; i < last_spacings_.note_spacings_.size (); i++)
{
Pointer_group_interface::add_grob (last_spacings_.note_spacings_[i],
ly_symbol2scm ("right-items" ),
column);
}
- if(last_spacings_.staff_spacing_
+ if (last_spacings_.staff_spacing_
&& last_spacings_.staff_spacing_->get_column () == column)
{
last_spacings_.staff_spacing_->suicide ();
return;
if (it->get_parent (X_AXIS)
&& it->get_parent (X_AXIS)
- ->has_extent_callback_b(Axis_group_interface::group_extent_callback_proc, X_AXIS))
+ ->has_extent_callback (Axis_group_interface::group_extent_callback_proc, X_AXIS))
return;
- if (to_boolean (it->get_grob_property ("no-spacing-rods")))
+ if (to_boolean (it->get_property ("no-spacing-rods")))
return ;
if (Note_spacing::has_interface (it))
return ;
}
- bool ib =Item::breakable_b (it);
- Item *&p_ref_ (ib ? break_malt_
- : musical_malt_);
+ bool ib = Item::is_breakable (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_, SCM_EOL);
+ {
+ p_ref_->set_property ("breakable", SCM_BOOL_T);
+ context ()->set_property ("breakableSeparationItem", p_ref_->self_scm ());
+ }
+
- if (p_ref_ == break_malt_)
+ if (to_boolean (get_property ("createSpacing"))
+ && p_ref_ == break_item_)
{
- Item *it = new Item (get_property ("StaffSpacing"));
+ Item *it = make_item ("StaffSpacing", SCM_EOL);
current_spacings_.staff_spacing_ = it;
- it->set_grob_property ("left-items", gh_cons (break_malt_->self_scm (), SCM_EOL));
+ it->set_property ("left-items", scm_cons (break_item_->self_scm (), SCM_EOL));
+
- announce_grob(it, SCM_EOL);
if (int i = last_spacings_.note_spacings_.size ())
{
for (; i--;)
Pointer_group_interface::add_grob (last_spacings_.note_spacings_[i],
ly_symbol2scm ("right-items"),
- break_malt_);
+ break_item_);
}
else if (last_spacings_.staff_spacing_)
{
-
- last_spacings_.staff_spacing_->set_grob_property ("right-items",
- gh_cons (break_malt_->self_scm(), SCM_EOL));
+ last_spacings_.staff_spacing_->set_property ("right-items",
+ scm_cons (break_item_->self_scm (), SCM_EOL));
}
}
}
void
Separating_line_group_engraver::start_translation_timestep ()
{
-
+ if (break_item_)
+ context ()->unset_property (ly_symbol2scm ("breakableSeparationItem"));
+ break_item_ = 0;
}
void
Separating_line_group_engraver::stop_translation_timestep ()
{
- if (break_malt_)
+ if (break_item_)
{
- Separating_group_spanner::add_spacing_unit (sep_span_, break_malt_);
- typeset_grob (break_malt_);
-
- break_malt_ =0;
+ Separating_group_spanner::add_spacing_unit (sep_span_, break_item_);
}
if (Item * sp = current_spacings_.staff_spacing_)
TODO: should really look at the left-items of following
note-spacing grobs.
*/
- if (musical_malt_)
+ if (musical_item_)
Pointer_group_interface::add_grob (sp, ly_symbol2scm ("right-items"),
- musical_malt_);
+ musical_item_);
- typeset_grob (sp);
}
- if (!current_spacings_.empty ())
+ if (!current_spacings_.is_empty ())
{
last_spacings_ = current_spacings_;
}
current_spacings_.clear ();
- if (musical_malt_)
+ if (musical_item_)
{
- Separating_group_spanner::add_spacing_unit (sep_span_, musical_malt_);
- typeset_grob (musical_malt_);
+ Separating_group_spanner::add_spacing_unit (sep_span_, musical_item_);
}
- musical_malt_ =0;
+ musical_item_ = 0;
}
-ENTER_DESCRIPTION(Separating_line_group_engraver,
+ADD_TRANSLATOR (Separating_line_group_engraver,
/* descr */ "Generates objects for computing spacing parameters.",
-/* creats*/ "SeparationItem SeparatingGroupSpanner",
+/* creats*/ "SeparationItem SeparatingGroupSpanner StaffSpacing",
/* accepts */ "",
/* acks */ "item-interface",
-/* reads */ "",
-/* write */ "");
+/* reads */ "createSpacing",
+/* write */ "breakableSeparationItem");