source file of the GNU LilyPond music typesetter
- (c) 2000 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 2000--2003 Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include "engraver.hh"
#include "group-interface.hh"
#include "item.hh"
-#include "musical-request.hh"
+#include "event.hh"
#include "spanner.hh"
#include "stem.hh"
#include "rhythmic-head.hh"
class Note_head_line_engraver : public Engraver
{
public:
- VIRTUAL_COPY_CONS (Translator);
- Note_head_line_engraver ();
+ TRANSLATOR_DECLARATIONS(Note_head_line_engraver);
protected:
virtual void acknowledge_grob (Grob_info);
- virtual void create_grobs ();
+ virtual void process_acknowledged_grobs ();
virtual void stop_translation_timestep ();
virtual bool try_music (Music *);
private:
Spanner* line_;
- Request* req_;
- Request* last_req_;
+ Music* req_;
+ Music* last_req_;
Translator* last_staff_;
bool follow_;
Grob* head_;
{
if (!req_)
{
- if (Glissando_req *r = dynamic_cast<Glissando_req*> (m))
- {
- req_ = r;
- return true;
- }
+ req_ = m;
+ return true;
}
return false;
}
void
Note_head_line_engraver::acknowledge_grob (Grob_info info)
{
- if (Rhythmic_head::has_interface (info.elem_l_))
+ if (Rhythmic_head::has_interface (info.grob_))
{
- head_ = info.elem_l_;
- if (to_boolean (get_property ("followThread")))
+ head_ = info.grob_;
+ if (to_boolean (get_property ("followVoice")))
{
- Translator_group * tr = daddy_trans_l_;
- while (tr && tr->type_str_ != "Staff")
- tr = tr->daddy_trans_l_ ;
+ Translator_group * tr = daddy_trans_;
+ while (tr && tr->type_string_ != "Staff")
+ tr = tr->daddy_trans_ ;
- if (tr && tr->type_str_ == "Staff" && tr != last_staff_)
+ if (tr && tr->type_string_ == "Staff" && tr != last_staff_)
{
if (last_head_)
follow_ = true;
void
-Note_head_line_engraver::create_grobs ()
+Note_head_line_engraver::process_acknowledged_grobs ()
{
if (!line_ && (follow_ || last_req_) && last_head_ && head_
&& (last_head_ != head_))
Should probably store follow_ in line_, and suicide at some
later point */
if (follow_)
- line_ = new Spanner (get_property ("FollowThread"));
+ line_ = new Spanner (get_property ("VoiceFollower"));
else
line_ = new Spanner (get_property ("Glissando"));
/* Note, mustn't set y-parent of breakable symbol to simple item:
one of the two broken parts won't have an y-parent! */
/* X parent is set by set_bound */
- line_->set_parent (Staff_symbol_referencer::staff_symbol_l (last_head_),
+ line_->set_parent (Staff_symbol_referencer::get_staff_symbol (last_head_),
Y_AXIS);
- announce_grob (line_, last_req_);
+ SCM c = last_req_? last_req_->self_scm () : SCM_EOL;
+ announce_grob(line_, c);
last_req_ = 0;
follow_ = false;
}
-ADD_THIS_TRANSLATOR (Note_head_line_engraver);
+
+ENTER_DESCRIPTION(Note_head_line_engraver,
+/* descr */ "Engrave a line between two note heads, for example a glissando. If "
+" followVoice is set, staff switches also generate a line.",
+/* creats*/ "Glissando VoiceFollower",
+/* accepts */ "glissando-event",
+/* acks */ "rhythmic-head-interface",
+/* reads */ "followVoice",
+/* write */ "");