+/*
+ head-grav.cc -- part of GNU LilyPond
+
+ (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+*/
+#include <ctype.h>
+#include <stdio.h>
+
+#include "rhythmic-head.hh"
+#include "paper-def.hh"
+#include "musical-request.hh"
+#include "dots.hh"
+#include "dot-column.hh"
+#include "staff-symbol-referencer.hh"
+#include "item.hh"
+#include "score-engraver.hh"
+#include "warn.hh"
+
+/**
+ make (guitar-like) tablature note
+ */
+class Tab_note_heads_engraver : public Engraver
+{
+ Link_array<Item> note_p_arr_;
+
+ Link_array<Item> dot_p_arr_;
+ Link_array<Note_req> note_req_l_arr_;
+
+ Link_array<Text_script_req> tabstring_req_arr_;
+
+public:
+ TRANSLATOR_DECLARATIONS(Tab_note_heads_engraver);
+
+protected:
+ virtual void start_translation_timestep ();
+ virtual bool try_music (Music *req_l) ;
+ virtual void process_music ();
+
+ virtual void stop_translation_timestep ();
+};
+
+
+Tab_note_heads_engraver::Tab_note_heads_engraver()
+{
+}
+
+bool
+Tab_note_heads_engraver::try_music (Music *m)
+{
+ if (Note_req * n =dynamic_cast <Note_req *> (m))
+ {
+ note_req_l_arr_.push (n);
+ return true;
+ }
+ else if (Text_script_req * ts = dynamic_cast<Text_script_req*> (m))
+ {
+ if (m->get_mus_property ("text-type") != ly_symbol2scm ("finger")) return false;
+
+ //if (tabstring_req_arr_.size () < note_req_l_arr_.size ()) {
+ tabstring_req_arr_.push (ts);
+ //}
+ return true;
+ }
+ else if (dynamic_cast<Busy_playing_req*> (m))
+ {
+ return note_req_l_arr_.size ();
+ }
+
+ return false;
+}
+
+
+void
+Tab_note_heads_engraver::process_music ()
+{
+ /*
+ for (int i=0; i < tabstring_req_arr_.size (); i++) {
+ Music * tabstring_req = tabstring_req_arr_[i];
+
+ size_t lenp;
+ char* tab_string_as_str = gh_scm2newstr(tabstring_req->get_mus_property ("text"), &lenp);
+ }
+ */
+
+ for (int i=0; i < note_req_l_arr_.size (); i++)
+ {
+ Item * note_p = new Item (get_property ("TabNoteHead"));
+
+ Music * req = note_req_l_arr_[i];
+
+ Music * tabstring_req = tabstring_req_arr_[i];
+
+ size_t lenp;
+ char* tab_string_as_str = gh_scm2newstr(tabstring_req->get_mus_property ("text"), &lenp);
+ int tab_string = atoi(tab_string_as_str);
+
+ Duration dur = *unsmob_duration (req->get_mus_property ("duration"));
+
+ note_p->set_grob_property ("duration-log", gh_int2scm (dur.duration_log ()));
+
+ if (dur.dot_count ())
+ {
+ Item * d = new Item (get_property ("Dots"));
+ Rhythmic_head::set_dots (note_p, d);
+
+ if (dur.dot_count ()
+ != gh_scm2int (d->get_grob_property ("dot-count")))
+ d->set_grob_property ("dot-count", gh_int2scm (dur.dot_count ()));
+
+ d->set_parent (note_p, Y_AXIS);
+ announce_grob (d, SCM_EOL);
+ dot_p_arr_.push (d);
+ }
+
+ int pos = 2 * tab_string - 2; // No tab-note between the string !!!
+ SCM c0 = get_property ("centralCPosition");
+ if (gh_number_p (c0)) pos += gh_scm2int (c0);
+
+ note_p->set_grob_property ("tab-string", gh_int2scm (tab_string));
+
+ note_p->set_grob_property ("staff-position", gh_int2scm (pos));
+ announce_grob (note_p, req->self_scm());
+ note_p_arr_.push (note_p);
+ }
+}
+
+void
+Tab_note_heads_engraver::stop_translation_timestep ()
+{
+ for (int i=0; i < note_p_arr_.size (); i++)
+ {
+ typeset_grob (note_p_arr_[i]);
+ }
+
+ note_p_arr_.clear ();
+ for (int i=0; i < dot_p_arr_.size (); i++)
+ {
+ typeset_grob (dot_p_arr_[i]);
+ }
+ dot_p_arr_.clear ();
+
+ note_req_l_arr_.clear ();
+
+ tabstring_req_arr_.clear ();
+}
+
+void
+Tab_note_heads_engraver::start_translation_timestep ()
+{
+}
+
+
+ENTER_DESCRIPTION(Tab_note_heads_engraver,
+/* descr */ "Generate one or more tablature noteheads from Music of type Note_req.",
+/* creats*/ "TabNoteHead Dots",
+/* acks */ "",
+/* reads */ "centralCPosition",
+/* write */ "");