source file of the GNU LilyPond music typesetter
- (c) 2000 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 2000--2004 Jan Nieuwenhuizen <janneke@gnu.org>
*/
-#include "dimensions.hh"
-#include "musical-request.hh"
-#include "paper-column.hh"
#include "note-column.hh"
#include "item.hh"
#include "side-position-interface.hh"
#include "engraver.hh"
-#include "group-interface.hh"
-#include "directional-element-interface.hh"
-#include "translator-group.hh"
-#include "axis-group-interface.hh"
-
class Text_spanner_engraver : public Engraver
{
public:
- VIRTUAL_COPY_CONS (Translator);
- Text_spanner_engraver ();
-
+ TRANSLATOR_DECLARATIONS(Text_spanner_engraver);
protected:
- virtual void do_removal_processing ();
+ virtual void finalize ();
virtual void acknowledge_grob (Grob_info);
virtual bool try_music (Music *);
- void deprecated_process_music ();
virtual void stop_translation_timestep ();
- virtual void start_translation_timestep ();
- virtual void create_grobs ();
+ virtual void process_music ();
private:
Spanner *span_;
Spanner *finished_;
- Span_req *current_req_;
- Drul_array<Span_req*> req_drul_;
+ Music *current_req_;
+ Drul_array<Music*> req_drul_;
void typeset_all ();
};
-ADD_THIS_TRANSLATOR (Text_spanner_engraver);
-
Text_spanner_engraver::Text_spanner_engraver ()
{
req_drul_[STOP] = 0;
}
-void
-Text_spanner_engraver::start_translation_timestep ()
-{
- req_drul_[START] = 0;
- req_drul_[STOP] = 0;
-}
-
bool
Text_spanner_engraver::try_music (Music *m)
{
- if (Span_req *s = dynamic_cast <Span_req*> (m))
+ if (m->is_mus_type ("text-span-event"))
{
- String t = ly_scm2string (s->get_mus_property ("span-type"));
- if (t == "abort")
- {
- req_drul_[LEFT] = 0;
- req_drul_[RIGHT] = 0;
- if (span_)
- span_->suicide ();
- span_ = 0;
- }
- else if (t == "text")
- {
- req_drul_[s->get_span_dir()] = s;
- return true;
- }
+
+ Direction d = to_dir (m->get_mus_property ("span-direction"));
+ req_drul_[d] = m;
+ return true;
}
- return false;
-}
-void
-Text_spanner_engraver::create_grobs ()
-{
- deprecated_process_music ();
+ return false;
}
void
-Text_spanner_engraver::deprecated_process_music ()
+Text_spanner_engraver::process_music ()
{
- /////
if (req_drul_[STOP])
{
if (!span_)
{
req_drul_[STOP]->origin ()->warning
- (_ ("can't find start of text spanner"));
+ (_ ("can't find start of text spanner"));
}
else
{
- assert (!finished_);
- Grob* e = unsmob_element (get_property ("currentMusicalColumn"));
- span_->set_bound (RIGHT, e);
-
finished_ = span_;
span_ = 0;
current_req_ = 0;
{
if (current_req_)
{
- req_drul_[START]->origin ()->warning
- (_ ("already have a text spanner"));
+ req_drul_[START]->origin ()->warning(_ ("already have a text spanner"));
}
else
{
current_req_ = req_drul_[START];
- span_ = new Spanner (get_property ("TextSpanner"));
- Side_position::set_axis (span_, Y_AXIS);
- Grob *e = unsmob_element (get_property ("currentMusicalColumn"));
- span_->set_bound (LEFT, e);
- announce_grob (span_, req_drul_[START]);
+ span_ = make_spanner ("TextSpanner");
+
+
+ Side_position_interface::set_axis (span_, Y_AXIS);
+ announce_grob (span_, req_drul_[START]->self_scm());
+ req_drul_[START] = 0;
}
}
}
void
Text_spanner_engraver::acknowledge_grob (Grob_info info)
{
- if (span_ && Note_column::has_interface (info.elem_l_))
+ Spanner * spans[2] ={span_, finished_};
+ for (int i = 0; i < 2 ; i++)
{
- Side_position::add_support (span_, info.elem_l_);
- add_bound_item (span_, dynamic_cast<Item*> (info.elem_l_));
+ if (spans[i] && Note_column::has_interface (info.grob_))
+ {
+ Side_position_interface::add_support (spans[i], info.grob_);
+ add_bound_item (spans[i], dynamic_cast<Item*> (info.grob_));
+ }
}
}
{
if (finished_)
{
- Side_position::add_staff_support (finished_);
+ if (!finished_->get_bound (RIGHT))
+ {
+ Grob* e = unsmob_grob (get_property ("currentMusicalColumn"));
+ finished_->set_bound (RIGHT, e);
+ }
typeset_grob (finished_);
finished_ = 0;
}
void
Text_spanner_engraver::stop_translation_timestep ()
{
+ if (span_ && !span_->get_bound (LEFT))
+ {
+ Grob* e = unsmob_grob (get_property ("currentMusicalColumn"));
+ span_->set_bound (LEFT, e);
+ }
+
typeset_all ();
+ req_drul_[START] = 0;
+ req_drul_[STOP] = 0;
}
void
-Text_spanner_engraver::do_removal_processing ()
+Text_spanner_engraver::finalize ()
{
typeset_all ();
if (span_)
}
}
+ENTER_DESCRIPTION(Text_spanner_engraver,
+/* descr */ "Create text spanner from a Music.",
+/* creats*/ "TextSpanner",
+/* accepts */ "text-span-event",
+/* acks */ "note-column-interface",
+/* reads */ "",
+/* write */ "");