/*
- 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--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>,
Mats Bengtsson <matsb@s3.kth.se>
*/
-/*
- CLEAN ME UP.
- */
-
#include <ctype.h>
-#include "staff-symbol-referencer.hh"
+
+#include "translator-group.hh"
+#include "key-item.hh"
#include "bar.hh"
-#include "clef-engraver.hh"
-#include "clef-item.hh"
+#include "staff-symbol-referencer.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"
+#include "engraver.hh"
+#include "direction.hh"
+#include "side-position-interface.hh"
+#include "item.hh"
+
-Clef_engraver::Clef_engraver()
+class Clef_engraver : public Engraver
+{
+public:
+ VIRTUAL_COPY_CONS (Translator);
+ Clef_engraver ();
+
+ Direction octave_dir_;
+
+protected:
+ 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 ();
+private:
+ Item * clef_p_;
+ Item * octavate_p_;
+
+ SCM prev_glyph_;
+ SCM prev_cpos_;
+ SCM prev_octavation_;
+ void create_clef ();
+ void set_glyph ();
+ void inspect_clef_properties ();
+};
+
+Clef_engraver::Clef_engraver ()
{
clef_p_ = 0;
- clef_req_l_ = 0;
- clef_type_str_ = "";
- c0_position_i_ = 0;
- clef_position_i_ = 0;
octave_dir_ = CENTER;
- create_default_b_ = true;
+ 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;
-
- 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;
- }
+ SCM glyph_sym = ly_symbol2scm ("glyph-name");
+ SCM glyph = get_property ("clefGlyph");
- 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;
+ daddy_trans_l_->execute_single_pushpop_property (basic, glyph_sym, SCM_UNDEFINED);
+ daddy_trans_l_->execute_single_pushpop_property (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.elem_l_);
+ if (item)
{
- bool default_clef = !clef_p_;
- create_clef();
- if(!default_clef)
- clef_p_->set_elt_property("visibility-lambda",
- ly_eval_str ("all-visibility"));
- }
+ if (Bar::has_interface (info.elem_l_)
+ && gh_string_p (get_property ("clefGlyph")))
+ create_clef ();
- /* 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))
- {
- Staff_symbol_referencer_interface si (h);
- si.set_position (int (si.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))
+ if (Key_item::has_interface (item))
{
- k-> set_c_position (c0_position_i_);
+ /*
+ 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()
+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);
+ if (!clef_p_)
+ {
+ Item *c= new Item (get_property ("Clef"));
+ announce_grob (c, 0);
+
+ Staff_symbol_referencer::set_interface (c);
+
+ clef_p_ = c;
}
-}
+ Staff_symbol_referencer::set_position (clef_p_,
+ gh_scm2int (get_property ("clefPosition")));
-bool
-Clef_engraver::do_try_music (Music * r_l)
-{
- if (Clef_change_req *cl = dynamic_cast <Clef_change_req *> (r_l))
+ SCM oct = get_property ("clefOctavation");
+ if (gh_number_p (oct) && gh_scm2int (oct))
{
- clef_req_l_ = cl;
- if (!set_type (cl->clef_str_))
- cl->error (_ ("unknown clef type"));
+ Item * g = new Item (get_property ("OctavateEight"));
- return true;
- }
- else
- return false;
+ Side_position_interface::add_support (g,clef_p_);
+ g->set_parent (clef_p_, Y_AXIS);
+ g->set_parent (clef_p_, X_AXIS);
+
+ g->set_grob_property ("direction", gh_int2scm (sign (gh_scm2int (oct))));
+ octavate_p_ = g;
+ announce_grob (octavate_p_, 0);
+ }
}
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_));
-
- Staff_symbol_referencer_interface si(c);
- si.set_interface ();
-
- clef_p_ = c;
- }
- Staff_symbol_referencer_interface si(clef_p_);
- clef_p_->symbol_ = clef_type_str_;
- si.set_position (clef_position_i_);
- if (octave_dir_)
- {
- clef_p_->set_elt_property ("octave-dir", gh_int2scm (octave_dir_));
- }
+ 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::do_process_requests()
+Clef_engraver::inspect_clef_properties ()
{
- if (clef_req_l_)
+ 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)
+)
{
- create_clef();
+ set_glyph ();
+ create_clef ();
+
+ clef_p_->set_grob_property ("non-default", SCM_BOOL_T);
+
+ prev_cpos_ = clefpos;
+ prev_glyph_ = glyph;
+ prev_octavation_ = octavation;
}
- else if (create_default_b_)
+
+ if (to_boolean (force_clef))
{
- SCM type = get_property ("defaultClef", 0);
- if (gh_string_p (type))
- set_type (ly_scm2string (type));
- else
- set_type ( "treble");
- create_clef ();
- create_default_b_ = false;
+ 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_)
{
- typeset_element (clef_p_);
+ SCM vis = 0;
+ if (to_boolean (clef_p_->get_grob_property ("non-default")))
+ {
+ vis = get_property ("explicitClefVisibility");
+ }
+
+ if (vis)
+ {
+ clef_p_->set_grob_property ("visibility-lambda", vis);
+ if (octavate_p_)
+ octavate_p_->set_grob_property ("visibility-lambda", vis);
+ }
+
+ typeset_grob (clef_p_);
clef_p_ =0;
- }
- create_default_b_ = false;
-}
-void
-Clef_engraver::do_post_move_processing()
-{
- clef_req_l_ = 0;
+ if (octavate_p_)
+ typeset_grob (octavate_p_);
+
+ octavate_p_ = 0;
+ }
}
void
-Clef_engraver::do_removal_processing()
+Clef_engraver::start_translation_timestep ()
{
- assert (!clef_p_);
}
-
-
-ADD_THIS_TRANSLATOR(Clef_engraver);
+ADD_THIS_TRANSLATOR (Clef_engraver);
projects / lilypond.git / blobdiff