source file of the GNU LilyPond music typesetter
- (c) 2000 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 2000--2008 Jan Nieuwenhuizen <janneke@gnu.org>
*/
-#include "dimensions.hh"
-#include "musical-request.hh"
-#include "paper-column.hh"
+#include "engraver.hh"
+
+#include "international.hh"
#include "note-column.hh"
-#include "item.hh"
+#include "pointer-group-interface.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"
+#include "spanner.hh"
+#include "stream-event.hh"
+#include "translator.icc"
class Text_spanner_engraver : public Engraver
{
public:
- VIRTUAL_COPY_CONS (Translator);
- Text_spanner_engraver ();
-
+ TRANSLATOR_DECLARATIONS (Text_spanner_engraver);
protected:
virtual void finalize ();
- virtual void acknowledge_grob (Grob_info);
- virtual bool try_music (Music *);
- virtual void stop_translation_timestep ();
- virtual void start_translation_timestep ();
- virtual void create_grobs ();
+ DECLARE_TRANSLATOR_LISTENER (text_span);
+ DECLARE_ACKNOWLEDGER (note_column);
+ void stop_translation_timestep ();
+ void process_music ();
private:
Spanner *span_;
Spanner *finished_;
- Span_req *current_req_;
- Drul_array<Span_req*> req_drul_;
+ Stream_event *current_event_;
+ Drul_array<Stream_event *> event_drul_;
void typeset_all ();
};
-ADD_THIS_TRANSLATOR (Text_spanner_engraver);
-
-
Text_spanner_engraver::Text_spanner_engraver ()
{
finished_ = 0;
- current_req_ = 0;
- span_ =0;
- req_drul_[START] = 0;
- req_drul_[STOP] = 0;
+ current_event_ = 0;
+ span_ = 0;
+ event_drul_[START] = 0;
+ event_drul_[STOP] = 0;
}
+IMPLEMENT_TRANSLATOR_LISTENER (Text_spanner_engraver, text_span);
void
-Text_spanner_engraver::start_translation_timestep ()
+Text_spanner_engraver::listen_text_span (Stream_event *ev)
{
- 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))
- {
- 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;
- }
- }
- return false;
+ Direction d = to_dir (ev->get_property ("span-direction"));
+ ASSIGN_EVENT_ONCE (event_drul_[d], ev);
}
void
-Text_spanner_engraver::create_grobs ()
+Text_spanner_engraver::process_music ()
{
- /////
- if (req_drul_[STOP])
+ if (event_drul_[STOP])
{
if (!span_)
- {
- req_drul_[STOP]->origin ()->warning
- (_ ("can't find start of text spanner"));
- }
+ event_drul_[STOP]->origin ()->warning (_ ("cannot find start of text spanner"));
else
{
- assert (!finished_);
- Grob* e = unsmob_grob (get_property ("currentMusicalColumn"));
- span_->set_bound (RIGHT, e);
-
finished_ = span_;
+ announce_end_grob (finished_, SCM_EOL);
span_ = 0;
- current_req_ = 0;
+ current_event_ = 0;
}
}
- if (req_drul_[START])
+ if (event_drul_[START])
{
- if (current_req_)
- {
- req_drul_[START]->origin ()->warning
- (_ ("already have a text spanner"));
- }
+ if (current_event_)
+ event_drul_[START]->origin ()->warning (_ ("already have a text spanner"));
else
{
- current_req_ = req_drul_[START];
- span_ = new Spanner (get_property ("TextSpanner"));
-
- /* Don't remove me without testing.
-
- Urg. It seems that a padding property with empty cdr
- ``(padding)'' is set somewhere, overriding the default
- TextSpanner properties. Also, my gdb won't print *span_
- or span_->mutable_property_alis_ here */
- if (1)//!gh_number_p (span_->get_grob_property ("padding")))
- {
- span_->remove_grob_property ("padding");
- span_->set_grob_property ("padding", gh_double2scm (0));
- }
-
- Side_position::set_axis (span_, Y_AXIS);
- Grob *e = unsmob_grob (get_property ("currentMusicalColumn"));
- span_->set_bound (LEFT, e);
- announce_grob (span_, req_drul_[START]);
- }
- }
-}
+ current_event_ = event_drul_[START];
+ span_ = make_spanner ("TextSpanner", event_drul_[START]->self_scm ());
-void
-Text_spanner_engraver::acknowledge_grob (Grob_info info)
-{
- if (span_ && Note_column::has_interface (info.elem_l_))
- {
- Side_position::add_support (span_, info.elem_l_);
- add_bound_item (span_, dynamic_cast<Item*> (info.elem_l_));
+ Side_position_interface::set_axis (span_, Y_AXIS);
+ event_drul_[START] = 0;
+ }
}
}
void
Text_spanner_engraver::typeset_all ()
-{
+{
if (finished_)
{
- Side_position::add_staff_support (finished_);
- typeset_grob (finished_);
+ if (!finished_->get_bound (RIGHT))
+ {
+ Grob *e = unsmob_grob (get_property ("currentMusicalColumn"));
+ finished_->set_bound (RIGHT, e);
+ }
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 ();
+ event_drul_[START] = 0;
+ event_drul_[STOP] = 0;
}
void
typeset_all ();
if (span_)
{
- current_req_->origin ()->warning (_ ("unterminated text spanner"));
+ current_event_->origin ()->warning (_ ("unterminated text spanner"));
span_->suicide ();
span_ = 0;
}
}
+
+void
+Text_spanner_engraver::acknowledge_note_column (Grob_info info)
+{
+ if (span_) {
+ Pointer_group_interface::add_grob (span_,
+ ly_symbol2scm ("note-columns"),
+ info.grob());
+ add_bound_item (span_, info.grob ());
+ } else if (finished_) {
+ Pointer_group_interface::add_grob (finished_, ly_symbol2scm ("note-columns"),
+ info.grob());
+ add_bound_item (finished_, info.grob ());
+ }
+}
+
+ADD_ACKNOWLEDGER (Text_spanner_engraver, note_column);
+
+ADD_TRANSLATOR (Text_spanner_engraver,
+ /* doc */
+ "Create text spanner from an event.",
+
+ /* create */
+ "TextSpanner ",
+
+ /* read */
+ "",
+
+ /* write */
+ ""
+ );
projects / lilypond.git / blobdiff