X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fclef-engraver.cc;h=090647ae71771d4eae6eef463c23b0a438f5840e;hb=a7f82e4dc22fc6219a9fe0f6874f8c91e3f31f24;hp=7aa6e32f0b684a194a25b7a60a3502fe6f01469f;hpb=91bf0ea3bb2f298fff46e7ac04ae4b04480d17dc;p=lilypond.git diff --git a/lily/clef-engraver.cc b/lily/clef-engraver.cc index 7aa6e32f0b..090647ae71 100644 --- a/lily/clef-engraver.cc +++ b/lily/clef-engraver.cc @@ -3,254 +3,191 @@ source file of the GNU LilyPond music typesetter - (c) 1997--2000 Han-Wen Nienhuys , + (c) 1997--2005 Han-Wen Nienhuys , Mats Bengtsson */ -#include +#include +#include "context.hh" +#include "bar-line.hh" #include "staff-symbol-referencer.hh" -#include "bar.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" -#include "array.hh" #include "engraver.hh" #include "direction.hh" #include "side-position-interface.hh" -#include "text-item.hh" - -/// where is c-0 in the staff? -class Clef_engraver : public Engraver { - Clef_item * clef_p_; - Text_item * octavate_p_; - Clef_change_req * clef_req_l_; - - void create_clef(); - bool set_type (String); -protected: - virtual void do_process_music(); - virtual void do_pre_move_processing(); - virtual void do_creation_processing(); - virtual void do_post_move_processing(); - virtual bool do_try_music (Music*); - virtual void acknowledge_element (Score_element_info); + +class Clef_engraver : public Engraver +{ public: - VIRTUAL_COPY_CONS(Translator); - int c0_position_i_; - int clef_position_i_; - // junkme. + TRANSLATOR_DECLARATIONS (Clef_engraver); + Direction octave_dir_; - SCM clef_glyph_; // no need for protection. Always referenced somewhere else. - - Clef_engraver(); - bool first_b_; - - Protected_scm current_settings_; +protected: + PRECOMPUTED_VIRTUAL void stop_translation_timestep (); + PRECOMPUTED_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_engraver::Clef_engraver () { - current_settings_ = SCM_EOL; - - first_b_ = true; - clef_glyph_ = SCM_EOL; - clef_p_ = 0; - clef_req_l_ = 0; - c0_position_i_ = 0; - clef_position_i_ = 0; + clef_ = 0; octave_dir_ = CENTER; - octavate_p_ = 0; -} + octavate_ = 0; -bool -Clef_engraver::set_type (String s) -{ - 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; - - clef_glyph_ = gh_cadr (found); - SCM pos = gh_caddr (found); - - clef_position_i_ = gh_scm2int (pos); - - found = scm_assoc (clef_glyph_, p); - if (found == SCM_BOOL_F) - return false; - - c0_position_i_ = clef_position_i_ + gh_scm2int (gh_cdr (found)); - } - - c0_position_i_ -= (int) octave_dir_ * 7; - - SCM basic = get_property ("basicClefItemProperties"); - current_settings_ = gh_cons (gh_cons (ly_symbol2scm ("glyph"), clef_glyph_), basic); - current_settings_ = - gh_cons (gh_cons (ly_symbol2scm ("c0-position"), - gh_int2scm (c0_position_i_)), - current_settings_); - - return true; + /* + will trigger a clef at the start since #f != ' () + */ + prev_cpos_ = prev_glyph_ = SCM_BOOL_F; } -/** - 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::set_glyph () { - if (dynamic_cast(info.elem_l_) - && gh_string_p (clef_glyph_)) - create_clef(); + SCM glyph_sym = ly_symbol2scm ("glyph-name"); + SCM glyph = get_property ("clefGlyph"); - Item * it_l =dynamic_cast (info.elem_l_); - if (it_l) - { - if (dynamic_cast(it_l) - || dynamic_cast (it_l)) - { - Staff_symbol_referencer_interface si (it_l); - si.set_position (int (si.position_f ()) + c0_position_i_); - } - else if (Key_item *k = dynamic_cast(it_l)) - { - k->set_elt_property ("c0-position", gh_int2scm (c0_position_i_)); - } - } + SCM basic = ly_symbol2scm ("Clef"); + + execute_pushpop_property (context (), basic, glyph_sym, SCM_UNDEFINED); + execute_pushpop_property (context (), basic, glyph_sym, glyph); } +/** + Generate a clef at the start of a measure. (when you see a Bar, + ie. a breakpoint) +*/ void -Clef_engraver::do_creation_processing() +Clef_engraver::acknowledge_grob (Grob_info info) { - SCM def = get_property ("defaultClef"); - if (gh_string_p (def)) + Item *item = dynamic_cast (info.grob ()); + if (item) { - set_type (ly_scm2string (def)); + if (Bar_line::has_interface (info.grob ()) + && scm_is_string (get_property ("clefGlyph"))) + create_clef (); } } -bool -Clef_engraver::do_try_music (Music * r_l) +void +Clef_engraver::create_clef () { - if (Clef_change_req *cl = dynamic_cast (r_l)) + if (!clef_) { - clef_req_l_ = cl; - if (!set_type (cl->clef_str_)) - cl->error (_ ("unknown clef type")); + Item *c = make_item ("Clef", SCM_EOL); - return true; - } - else - return false; + clef_ = c; + SCM cpos = get_property ("clefPosition"); + + if (scm_is_number (cpos)) + clef_->set_property ("staff-position", cpos); + + SCM oct = get_property ("clefOctavation"); + if (scm_is_number (oct) && scm_to_int (oct)) + { + Item *g = make_item ("OctavateEight", SCM_EOL); + int abs_oct = scm_to_int (oct); + int dir = sign (abs_oct); + abs_oct = abs (abs_oct) + 1; + + SCM txt = scm_number_to_string (scm_int2num (abs_oct), + scm_from_int (10)); + + g->set_property ("text", + scm_list_n (ly_lily_module_constant ("vcenter-markup"), + txt, SCM_UNDEFINED)); + Side_position_interface::add_support (g, clef_); + + g->set_parent (clef_, Y_AXIS); + g->set_parent (clef_, X_AXIS); + g->set_property ("direction", scm_int2num (dir)); + octavate_ = g; + } + } +} +void +Clef_engraver::process_music () +{ + inspect_clef_properties (); } void -Clef_engraver::create_clef() +Clef_engraver::inspect_clef_properties () { - if (!clef_p_) + 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)) { - Clef_item *c= new Clef_item ( current_settings_); - announce_element (Score_element_info (c, clef_req_l_)); + set_glyph (); + if (prev_cpos_ != SCM_BOOL_F || to_boolean (get_property ("firstClef"))) + create_clef (); - Staff_symbol_referencer_interface si(c); - si.set_interface (); - - clef_p_ = c; - } - Staff_symbol_referencer_interface si(clef_p_); + if (clef_) + clef_->set_property ("non-default", SCM_BOOL_T); - si.set_position (clef_position_i_); - if (octave_dir_) - { - Text_item * g = new Text_item (get_property ("basicOctavateEightProperties")); - Side_position_interface spi (g); - spi.set_axis (Y_AXIS); - spi.add_support (clef_p_); - g->set_parent (clef_p_, Y_AXIS); - g->set_parent (clef_p_, X_AXIS); - g->add_offset_callback (Side_position_interface::aligned_on_self, X_AXIS); - g->add_offset_callback (Side_position_interface::centered_on_parent, X_AXIS); - g->set_elt_property ("direction", gh_int2scm (octave_dir_)); - octavate_p_ = g; - announce_element (Score_element_info (octavate_p_, clef_req_l_)); + prev_cpos_ = clefpos; + prev_glyph_ = glyph; + prev_octavation_ = octavation; } -} - -void -Clef_engraver::do_process_music() -{ - if (clef_req_l_ || first_b_) + if (to_boolean (force_clef)) { - create_clef(); - clef_p_->set_elt_property ("non-default", SCM_BOOL_T); + Context *w = context ()->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_) + if (clef_) { - SCM vis = 0; - if(to_boolean (clef_p_->get_elt_property("non-default"))) + SCM vis = 0; + if (to_boolean (clef_->get_property ("non-default"))) { - vis = ly_symbol2scm ("all-visible"); - vis = scm_eval (vis); + vis = get_property ("explicitClefVisibility"); } if (vis) { - clef_p_->set_elt_property("visibility-lambda", vis); - if (octavate_p_) - octavate_p_->set_elt_property("visibility-lambda", vis); + clef_->set_property ("break-visibility", vis); + if (octavate_) + { + octavate_->set_property ("break-visibility", vis); + } } - - typeset_element (clef_p_); - clef_p_ =0; - if (octavate_p_) - typeset_element(octavate_p_); + clef_ = 0; - octavate_p_ = 0; + octavate_ = 0; } - - first_b_ = 0; -} - -void -Clef_engraver::do_post_move_processing() -{ - clef_req_l_ = 0; } -ADD_THIS_TRANSLATOR(Clef_engraver); +#include "translator.icc" +ADD_TRANSLATOR (Clef_engraver, + /* descr */ "Determine and set reference point for pitches", + /* creats*/ "Clef OctavateEight", + /* accepts */ "", + /* acks */ "bar-line-interface", + /* reads */ "clefPosition clefGlyph middleCPosition clefOctavation explicitClefVisibility forceClef", + /* write */ "");