source file of the GNU LilyPond music typesetter
- (c) 2000 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 2000--2006 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"
+#include "international.hh"
+#include "note-column.hh"
+#include "side-position-interface.hh"
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);
+ DECLARE_ACKNOWLEDGER (note_column);
virtual bool try_music (Music *);
- virtual void stop_translation_timestep ();
- virtual void start_translation_timestep ();
- virtual void create_grobs ();
+ void stop_translation_timestep ();
+ void process_music ();
private:
Spanner *span_;
Spanner *finished_;
- Span_req *current_req_;
- Drul_array<Span_req*> req_drul_;
+ Music *current_event_;
+ Drul_array<Music *> 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;
-}
-
-void
-Text_spanner_engraver::start_translation_timestep ()
-{
- req_drul_[START] = 0;
- req_drul_[STOP] = 0;
+ current_event_ = 0;
+ span_ = 0;
+ event_drul_[START] = 0;
+ event_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_property ("span-direction"));
+ event_drul_[d] = m;
+ return true;
}
+
return false;
}
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 (_ ("can't find start of text spanner"));
else
{
- assert (!finished_);
- Grob* e = unsmob_grob (get_property ("currentMusicalColumn"));
- span_->set_bound (RIGHT, e);
-
finished_ = span_;
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"));
-
- /* Ugh. Reset (de)cresc. specific properties */
- span_->set_grob_property ("outer", SCM_BOOL_T);
- span_->set_grob_property ("if-text-padding", gh_double2scm (0));
- span_->set_grob_property ("width-correct", 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 ());
+
+ Side_position_interface::set_axis (span_, Y_AXIS);
+ event_drul_[START] = 0;
}
}
}
void
-Text_spanner_engraver::acknowledge_grob (Grob_info info)
+Text_spanner_engraver::acknowledge_note_column (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])
+ {
+ Side_position_interface::add_support (spans[i], info.grob ());
+ add_bound_item (spans[i], dynamic_cast<Item *> (info.grob ()));
+ }
}
}
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;
}
}
+#include "translator.icc"
+ADD_ACKNOWLEDGER (Text_spanner_engraver, note_column);
+ADD_TRANSLATOR (Text_spanner_engraver,
+ /* doc */ "Create text spanner from a Music.",
+ /* create */ "TextSpanner",
+ /* accept */ "text-span-event",
+ /* read */ "",
+ /* write */ "");
projects / lilypond.git / blobdiff