/*
- clef.cc -- implement Clef_engraver
+ clef-engraver.cc -- implement Clef_engraver
source file of the GNU LilyPond music typesetter
- (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>,
+ (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>,
Mats Bengtsson <matsb@s3.kth.se>
*/
-/*
- CLEAN ME UP.
- */
#include <ctype.h>
-#include "bar.hh"
-#include "clef-engraver.hh"
-#include "clef-item.hh"
-#include "debug.hh"
-#include "command-request.hh"
-#include "timing-translator.hh"
-#include "note-head.hh"
-#include "key-item.hh"
-#include "local-key-item.hh"
-
-Clef_engraver::Clef_engraver()
+
+#include "translator-group.hh"
+#include "bar-line.hh"
+#include "staff-symbol-referencer.hh"
+#include "engraver.hh"
+#include "direction.hh"
+#include "side-position-interface.hh"
+#include "item.hh"
+
+class Clef_engraver : public Engraver
{
- clef_p_ = 0;
- clef_req_l_ = 0;
- clef_type_str_ = "";
- c0_position_i_ = 0;
- clef_position_i_ = 0;
+public:
+ TRANSLATOR_DECLARATIONS(Clef_engraver);
+
+ Direction octave_dir_;
+
+protected:
+ virtual void stop_translation_timestep ();
+ virtual void process_music ();
+ virtual void acknowledge_grob (Grob_info);
+private:
+ Item * clef_;
+ Item * octavate_;
+
+ SCM prev_glyph_;
+ SCM prev_cpos_;
+ SCM prev_octavation_;
+ void create_clef ();
+ void set_glyph ();
+ void inspect_clef_properties ();
+};
+
+Clef_engraver::Clef_engraver ()
+{
+ clef_ = 0;
octave_dir_ = CENTER;
- create_default_b_ = true;
+ octavate_ = 0;
+
+ /*
+ will trigger a clef at the start since #f != ' ()
+ */
+ prev_cpos_ = prev_glyph_ = SCM_BOOL_F;
}
-bool
-Clef_engraver::set_type (String s)
+void
+Clef_engraver::set_glyph ()
{
- if (s.right_str(2) == "_8") // Down one octave
- {
- octave_dir_ = DOWN;
- s = s.left_str(s.length_i() - 2);
- }
- else if (s.right_str(2) == "^8") // Up one octave
- {
- octave_dir_ = UP;
- s = s.left_str(s.length_i() - 2);
- }
- else
- octave_dir_ = CENTER;
+ SCM glyph_sym = ly_symbol2scm ("glyph-name");
+ SCM glyph = get_property ("clefGlyph");
- bool found = false;
- SCM c = get_property ("supportedClefTypes",0);
- for (; gh_pair_p(c); c = gh_cdr (c))
- {
- SCM entry = gh_car (c);
- SCM name = gh_car (entry);
-
- if (ly_scm2string (name) != s)
- continue;
-
- SCM glyph = gh_cadr (entry);
- SCM pos = gh_caddr (entry);
-
- clef_type_str_ = ly_scm2string (glyph);
- clef_position_i_ = gh_scm2int (pos);
- found = true;
- break;
- }
-
- if (!found)
- {
- switch(toupper (s[0]))
- {
- case 'F':
- clef_type_str_ = "bass";
- break;
- case 'G':
- clef_type_str_ = "treble";
- break;
- case 'C':
- clef_type_str_ = "alto";
- break;
- default:
- return false;
- }
- clef_position_i_ = 2 * (s[1] - '0') - 6;
- }
-
- if (clef_type_str_ == "treble")
- c0_position_i_ = clef_position_i_ - 4;
- else if (clef_type_str_ == "alto")
- c0_position_i_ = clef_position_i_;
- else if (clef_type_str_ == "bass")
- c0_position_i_ = clef_position_i_ + 4;
- else
- assert (false);
-
- c0_position_i_ -= (int) octave_dir_ * 7;
+ SCM basic = ly_symbol2scm ("Clef");
- return true;
+ execute_pushpop_property (daddy_trans_, basic, glyph_sym, SCM_UNDEFINED);
+ execute_pushpop_property (daddy_trans_, basic, glyph_sym, glyph);
}
-
/**
Generate a clef at the start of a measure. (when you see a Bar,
ie. a breakpoint)
*/
void
-Clef_engraver::acknowledge_element (Score_element_info info)
+Clef_engraver::acknowledge_grob (Grob_info info)
{
- if (dynamic_cast<Bar*>(info.elem_l_)
- && clef_type_str_.length_i())
+ Item * item =dynamic_cast <Item *> (info.grob_);
+ if (item)
{
- bool default_clef = !clef_p_;
- create_clef();
- if(!default_clef)
- clef_p_->set_elt_property("visibility-lambda",
- ly_ch_C_eval_scm ("all-visibility"));
- }
-
- /* ugh; should make Clef_referenced baseclass */
- Item * it_l =dynamic_cast <Item *> (info.elem_l_);
- if (it_l)
- {
- if (Note_head * h = dynamic_cast<Note_head*>(it_l))
- {
- h->set_position (int (h->position_f ()) + c0_position_i_);
- }
- else if (Local_key_item *i = dynamic_cast<Local_key_item*> (it_l))
- {
- i->c0_position_i_ =c0_position_i_;
- }
- else if (Key_item *k = dynamic_cast<Key_item*>(it_l))
- {
- k-> set_c_position (c0_position_i_);
- }
+ if (Bar_line::has_interface (info.grob_)
+ && gh_string_p (get_property ("clefGlyph")))
+ create_clef ();
}
}
void
-Clef_engraver::do_creation_processing()
+Clef_engraver::create_clef ()
{
- create_default_b_ = true; // should read property.
- SCM def = get_property ("createInitdefaultClef", 0);
- if (gh_string_p (def))
- set_type (ly_scm2string (def));
-
- if (clef_type_str_.length_i ())
- {
- create_clef();
- clef_p_->set_elt_property ("non-default", SCM_BOOL_T);
- }
-}
-
-bool
-Clef_engraver::do_try_music (Music * r_l)
-{
- if (Clef_change_req *cl = dynamic_cast <Clef_change_req *> (r_l))
+ if (!clef_)
{
- clef_req_l_ = cl;
- if (!set_type (cl->clef_str_))
- cl->error (_ ("unknown clef type"));
+ Item *c= make_item ("Clef");
+ announce_grob(c, SCM_EOL);
- return true;
- }
- else
- return false;
+ clef_ = c;
+ SCM cpos = get_property ("clefPosition");
-}
+ if (gh_number_p (cpos))
+ Staff_symbol_referencer::set_position (clef_, gh_scm2int (cpos));
+ SCM oct = get_property ("clefOctavation");
+ if (gh_number_p (oct) && gh_scm2int (oct))
+ {
+ Item * g = make_item ("OctavateEight");
+
+ int abs_oct = gh_scm2int (oct) ;
+ int dir = sign (abs_oct);
+ abs_oct = abs (abs_oct) + 1;
+
+ g->set_grob_property ("text",
+ scm_number_to_string (gh_int2scm (abs_oct),
+ SCM_MAKINUM (10)));
+ Side_position_interface::add_support (g,clef_);
+
+ g->set_parent (clef_, Y_AXIS);
+ g->set_parent (clef_, X_AXIS);
+ g->set_grob_property ("direction", scm_int2num (dir));
+ octavate_ = g;
+ announce_grob(octavate_, SCM_EOL);
+ }
+ }
+}
void
-Clef_engraver::create_clef()
+Clef_engraver::process_music ()
{
- if (!clef_p_)
- {
- Clef_item *c= new Clef_item;
- c->set_elt_property ("break-aligned", SCM_BOOL_T);
- announce_element (Score_element_info (c, clef_req_l_));
- clef_p_ = c;
- }
-
- clef_p_->symbol_ = clef_type_str_;
- clef_p_->set_position(clef_position_i_);
- if (octave_dir_)
- {
- clef_p_->set_elt_property ("octave-dir", gh_int2scm (octave_dir_));
- }
+ inspect_clef_properties ();
}
-
void
-Clef_engraver::do_process_requests()
+Clef_engraver::inspect_clef_properties ()
{
- if (clef_req_l_)
- {
- create_clef();
- }
- else if (create_default_b_)
+ SCM glyph = get_property ("clefGlyph");
+ SCM clefpos = get_property ("clefPosition");
+ SCM octavation = get_property ("clefOctavation");
+ SCM force_clef = get_property ("forceClef");
+
+ if (clefpos == SCM_EOL
+ || scm_equal_p (glyph, prev_glyph_) == SCM_BOOL_F
+ || scm_equal_p (clefpos, prev_cpos_) == SCM_BOOL_F
+ || scm_equal_p (octavation, prev_octavation_) == SCM_BOOL_F
+ || to_boolean (force_clef))
{
- SCM type = get_property ("defaultClef", 0);
- if (gh_string_p (type))
- set_type (ly_scm2string (type));
- else
- set_type ( "treble");
+ set_glyph ();
create_clef ();
- create_default_b_ = false;
+
+ clef_->set_grob_property ("non-default", SCM_BOOL_T);
+
+ prev_cpos_ = clefpos;
+ prev_glyph_ = glyph;
+ prev_octavation_ = octavation;
}
-}
-void
-Clef_engraver::do_pre_move_processing()
-{
- if (clef_p_)
+ if (to_boolean (force_clef))
{
- typeset_element (clef_p_);
- clef_p_ =0;
+ Translator_group * w = daddy_trans_->where_defined (ly_symbol2scm ("forceClef"));
+ w->set_property ("forceClef", SCM_EOL);
}
- create_default_b_ = false;
}
-void
-Clef_engraver::do_post_move_processing()
-{
- clef_req_l_ = 0;
-}
void
-Clef_engraver::do_removal_processing()
+Clef_engraver::stop_translation_timestep ()
{
- assert (!clef_p_);
-}
+ if (clef_)
+ {
+ SCM vis = 0;
+ if (to_boolean (clef_->get_grob_property ("non-default")))
+ {
+ vis = get_property ("explicitClefVisibility");
+ }
+
+ if (vis)
+ {
+ clef_->set_grob_property ("break-visibility", vis);
+ if (octavate_)
+ {
+ octavate_->set_grob_property ("break-visibility", vis);
+ }
+ }
+
+ typeset_grob (clef_);
+ clef_ =0;
+
+ if (octavate_)
+ {
+ typeset_grob (octavate_);
+ }
+
+ octavate_ = 0;
+ }
+}
-ADD_THIS_TRANSLATOR(Clef_engraver);
+ENTER_DESCRIPTION(Clef_engraver,
+/* descr */ "Determine and set reference point for pitches",
+/* creats*/ "Clef OctavateEight",
+/* accepts */ "",
+/* acks */ "bar-line-interface",
+/* reads */ "clefPosition clefGlyph centralCPosition clefOctavation explicitClefVisibility",
+/* write */ "");
projects / lilypond.git / blobdiff