(c) 1999 Glen Prideaux <glenprideaux@iname.com>
*/
-#include "proto.hh"
+#include "flower-proto.hh"
#include "musical-request.hh"
-#include "hyphen-engraver.hh"
#include "hyphen-spanner.hh"
#include "paper-column.hh"
-#include "text-item.hh"
+#include "item.hh"
+#include "engraver.hh"
+
+/**
+ Generate an centred hyphen. Should make a Hyphen_spanner that
+ typesets a nice centred hyphen of varying length depending on the
+ gap between syllables.
+
+ We remember the last Item that come across. When we get a
+ request, we create the spanner, and attach the left point to the
+ last lyrics, and the right point to any lyrics we receive by
+ then. */
+class Hyphen_engraver : public Engraver
+{
+ Grob *last_lyric_l_;
+ Grob *current_lyric_l_;
+ Hyphen_req* req_l_;
+ Spanner* hyphen_p_;
+public:
+ Hyphen_engraver ();
+ VIRTUAL_COPY_CONS (Translator);
+
+protected:
+ virtual void acknowledge_grob (Grob_info);
+ virtual void finalize();
+ virtual bool try_music (Music*);
+ virtual void stop_translation_timestep();
+ virtual void start_translation_timestep ();
+ virtual void create_grobs ();
+private:
+
+};
ADD_THIS_TRANSLATOR (Hyphen_engraver);
{
current_lyric_l_ = 0;
last_lyric_l_ = 0;
- hyphen_spanner_p_ = 0;
+ hyphen_p_ = 0;
req_l_ = 0;
}
void
-Hyphen_engraver::acknowledge_element (Score_element_info i)
+Hyphen_engraver::acknowledge_grob (Grob_info i)
{
- if (Text_item* t = dynamic_cast<Text_item*> (i.elem_l_))
+ // -> text-item
+ if (i.elem_l_->has_interface (ly_symbol2scm ("lyric-syllable-interface")))
{
- current_lyric_l_ = t;
- if (hyphen_spanner_p_
- && !hyphen_spanner_p_->get_bound (RIGHT)
+ current_lyric_l_ = i.elem_l_;
+ if (hyphen_p_
+ && !hyphen_p_->get_bound (RIGHT)
)
{
- hyphen_spanner_p_->set_textitem (RIGHT, t);
+ Hyphen_spanner (hyphen_p_).set_textitem (RIGHT, i.elem_l_);
}
}
}
bool
-Hyphen_engraver::do_try_music (Music* r)
+Hyphen_engraver::try_music (Music* r)
{
if (Hyphen_req* p = dynamic_cast <Hyphen_req *> (r))
{
}
void
-Hyphen_engraver::do_removal_processing ()
+Hyphen_engraver::finalize ()
{
- if (hyphen_spanner_p_)
+ if (hyphen_p_)
{
- req_l_->warning (_ ("unterminated hyphen"));
- hyphen_spanner_p_->set_bound(RIGHT, get_staff_info ().command_pcol_l ());
+ req_l_->origin ()->warning (_ ("unterminated hyphen"));
+ hyphen_p_->set_bound(RIGHT, unsmob_grob (get_property ("currentCommandColumn")));
}
}
void
-Hyphen_engraver::do_process_music ()
+Hyphen_engraver::create_grobs ()
{
- if (req_l_)
+ if (req_l_ &&! hyphen_p_)
{
if (!last_lyric_l_)
{
- req_l_->warning (_ ("Nothing to connect hyphen to on the left. Ignoring hyphen request."));
+ req_l_->origin ()->warning (_ ("Nothing to connect hyphen to on the left. Ignoring hyphen request."));
return;
}
- hyphen_spanner_p_ = new Hyphen_spanner (get_property ("basicHyphenSpannerProperties"));
- hyphen_spanner_p_->set_textitem (LEFT, last_lyric_l_);
- announce_element (Score_element_info (hyphen_spanner_p_, req_l_));
+ hyphen_p_ = new Spanner (get_property ("LyricHyphen"));
+
+ Hyphen_spanner (hyphen_p_).set_textitem (LEFT, last_lyric_l_);
+ announce_grob (hyphen_p_, req_l_);
}
}
void
-Hyphen_engraver::do_pre_move_processing ()
+Hyphen_engraver::stop_translation_timestep ()
{
- if (hyphen_spanner_p_)
+ if (hyphen_p_)
{
- typeset_element (hyphen_spanner_p_);
- hyphen_spanner_p_ = 0;
+ typeset_grob (hyphen_p_);
+ hyphen_p_ = 0;
}
if (current_lyric_l_)
}
void
-Hyphen_engraver::do_post_move_processing ()
+Hyphen_engraver::start_translation_timestep ()
{
req_l_ = 0;
}