/*
-
clef-engraver.cc -- implement Clef_engraver
source file of the GNU LilyPond music typesetter
- (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>,
+ (c) 1997--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>,
Mats Bengtsson <matsb@s3.kth.se>
*/
#include "translator-group.hh"
#include "key-item.hh"
-#include "local-key-item.hh"
#include "bar.hh"
-#include "note-head.hh"
#include "staff-symbol-referencer.hh"
#include "debug.hh"
-#include "command-request.hh"
#include "engraver.hh"
#include "direction.hh"
#include "side-position-interface.hh"
#include "item.hh"
-/// where is c-0 in the staff?
+
class Clef_engraver : public Engraver
{
public:
Clef_engraver ();
Direction octave_dir_;
- bool first_b_;
protected:
- virtual void do_process_music ();
- virtual void do_pre_move_processing ();
+ virtual void stop_translation_timestep ();
+ virtual void start_translation_timestep ();
+ virtual void process_music ();
+ virtual void acknowledge_grob (Grob_info);
virtual void do_creation_processing ();
- virtual void do_post_move_processing ();
- virtual bool do_try_music (Music*);
- virtual void acknowledge_element (Score_element_info);
-
private:
Item * clef_p_;
Item * octavate_p_;
- Clef_change_req * clef_req_l_;
-
+
+ SCM prev_glyph_;
+ SCM prev_cpos_;
+ SCM prev_octavation_;
void create_clef ();
- bool set_type (String);
+ void set_glyph ();
+ void inspect_clef_properties ();
};
-
Clef_engraver::Clef_engraver ()
{
- first_b_ = true;
clef_p_ = 0;
- clef_req_l_ = 0;
octave_dir_ = CENTER;
octavate_p_ = 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 c = get_property ("supportedClefTypes");
- SCM p = get_property ("clefPitches");
-
- if (gh_list_p (c))
- {
- SCM found = scm_assoc (ly_str02scm (s.ch_C ()), c);
- if (found == SCM_BOOL_F)
- return false;
-
- SCM glyph = gh_cadr (found);
- SCM pos = gh_caddr (found);
-
- daddy_trans_l_->set_property ("glyph", glyph);
- daddy_trans_l_->set_property ("position", pos);
-
- found = scm_assoc (glyph, p);
- if (found == SCM_BOOL_F)
- return false;
-
- int c0_position = gh_scm2int (pos) + gh_scm2int (gh_cdr (found));
- daddy_trans_l_->set_property ("c0-position", gh_int2scm (c0_position));
- }
-
- int c0_position = gh_scm2int (get_property ("c0-position"));
- c0_position -= (int)octave_dir_ * 7;
- daddy_trans_l_->set_property ("c0-position", gh_int2scm (c0_position));
-
+ SCM glyph_sym = ly_symbol2scm ("glyph-name");
+ SCM glyph = get_property ("clefGlyph");
SCM basic = ly_symbol2scm ("Clef");
- SCM c0 = ly_symbol2scm ("c0-position");
- SCM gl = ly_symbol2scm ("glyph");
-
- daddy_trans_l_->execute_single_pushpop_property (basic, gl, SCM_UNDEFINED);
- daddy_trans_l_->execute_single_pushpop_property (basic, c0, SCM_UNDEFINED);
- daddy_trans_l_->execute_single_pushpop_property (basic, gl,
- get_property ("glyph"));
- daddy_trans_l_->execute_single_pushpop_property (basic, c0,
- get_property ("c0_position")
- );
- return true;
+
+ daddy_trans_l_->execute_single_pushpop_property (basic, glyph_sym, SCM_UNDEFINED);
+ daddy_trans_l_->execute_single_pushpop_property (basic, glyph_sym, glyph);
}
/**
ie. a breakpoint)
*/
void
-Clef_engraver::acknowledge_element (Score_element_info info)
+Clef_engraver::acknowledge_grob (Grob_info info)
{
Item * item =dynamic_cast <Item *> (info.elem_l_);
if (item)
{
if (Bar::has_interface (info.elem_l_)
- && gh_string_p (get_property ("glyph")))
+ && gh_string_p (get_property ("clefGlyph")))
create_clef ();
-
- if (Note_head::has_interface (item)
- || Local_key_item::has_interface (item))
+ if (Key_item::has_interface (item))
{
- int p = int (Staff_symbol_referencer::position_f (item))
- + gh_scm2int (get_property ("c0-position"));
- Staff_symbol_referencer::set_position (item, p);
- }
- else if (Key_item::has_interface (item))
- {
- item->set_elt_property ("c0-position", get_property ("c0-position"));
+ /*
+ Key_item adapts its formatting to make sure that the
+ accidentals stay in the upper half of the staff. It needs
+ to know c0-pos for this. (?)
+ */
+
+ item->set_grob_property ("c0-position", get_property ("centralCPosition"));
}
}
}
-void
-Clef_engraver::do_creation_processing ()
-{
- daddy_trans_l_->set_property ("position", gh_int2scm (0));
- daddy_trans_l_->set_property ("glyph", SCM_EOL);
- daddy_trans_l_->set_property ("c0-position", gh_int2scm (0));
-
- SCM def = get_property ("defaultClef");
- if (gh_string_p (def))
- {
- set_type (ly_scm2string (def));
- }
-}
-
-bool
-Clef_engraver::do_try_music (Music * r_l)
-{
- if (Clef_change_req *cl = dynamic_cast <Clef_change_req *> (r_l))
- {
- clef_req_l_ = cl;
- if (!set_type (cl->clef_str_))
- cl->origin ()->warning (_ ("unknown clef type"));
-
- return true;
- }
- return false;
-}
-
void
Clef_engraver::create_clef ()
{
if (!clef_p_)
{
Item *c= new Item (get_property ("Clef"));
- announce_element (c, clef_req_l_);
+ announce_grob (c, 0);
Staff_symbol_referencer::set_interface (c);
clef_p_ = c;
}
Staff_symbol_referencer::set_position (clef_p_,
- gh_scm2int (get_property ("position")
- ));
- if (octave_dir_)
+ gh_scm2int (get_property ("clefPosition")));
+
+ SCM oct = get_property ("clefOctavation");
+ if (gh_number_p (oct) && gh_scm2int (oct))
{
Item * g = new Item (get_property ("OctavateEight"));
- Side_position::add_support (g,clef_p_);
+ Side_position_interface::add_support (g,clef_p_);
g->set_parent (clef_p_, Y_AXIS);
g->set_parent (clef_p_, X_AXIS);
- g->set_elt_property ("direction", gh_int2scm (octave_dir_));
+ g->set_grob_property ("direction", gh_int2scm (sign (gh_scm2int (oct))));
octavate_p_ = g;
- announce_element (octavate_p_, clef_req_l_);
+ announce_grob (octavate_p_, 0);
}
}
void
-Clef_engraver::do_process_music ()
+Clef_engraver::process_music ()
{
- if (clef_req_l_ || first_b_)
+ inspect_clef_properties ();
+}
+
+/*
+ this must be done in creation_proc() since grace notes will be
+ processed before Clef_engraver::prcoess_music()
+
+ Grace notes and clef changes are still broken.
+*/
+void
+Clef_engraver::do_creation_processing ()
+{
+ inspect_clef_properties ();
+}
+
+void
+Clef_engraver::inspect_clef_properties ()
+{
+ 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)
+)
{
+ set_glyph ();
create_clef ();
- clef_p_->set_elt_property ("non-default", SCM_BOOL_T);
+
+ clef_p_->set_grob_property ("non-default", SCM_BOOL_T);
+
+ prev_cpos_ = clefpos;
+ prev_glyph_ = glyph;
+ prev_octavation_ = octavation;
+ }
+
+ if (to_boolean (force_clef))
+ {
+ Translator_group * w = daddy_trans_l_->where_defined (ly_symbol2scm ("forceClef"));
+ w->set_property ("forceClef", SCM_EOL);
}
}
+
void
-Clef_engraver::do_pre_move_processing ()
+Clef_engraver::stop_translation_timestep ()
{
if (clef_p_)
{
SCM vis = 0;
- if (to_boolean (clef_p_->get_elt_property ("non-default")))
+ if (to_boolean (clef_p_->get_grob_property ("non-default")))
{
vis = get_property ("explicitClefVisibility");
}
if (vis)
{
- clef_p_->set_elt_property ("visibility-lambda", vis);
+ clef_p_->set_grob_property ("visibility-lambda", vis);
if (octavate_p_)
- octavate_p_->set_elt_property ("visibility-lambda", vis);
+ octavate_p_->set_grob_property ("visibility-lambda", vis);
}
- typeset_element (clef_p_);
+ typeset_grob (clef_p_);
clef_p_ =0;
if (octavate_p_)
- typeset_element (octavate_p_);
+ typeset_grob (octavate_p_);
octavate_p_ = 0;
}
-
- first_b_ = 0;
}
void
-Clef_engraver::do_post_move_processing ()
+Clef_engraver::start_translation_timestep ()
{
- clef_req_l_ = 0;
}
ADD_THIS_TRANSLATOR (Clef_engraver);
projects / lilypond.git / blobdiff