X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fclef-engraver.cc;h=05c9420623b99047d49451c20528525bf0d32335;hb=5d84bfad4626892bcffd05adcced53c8a2329047;hp=b9813a1aa9a3351ecae6dee47f01ae485820cdd1;hpb=fd1bf2a820fe005734e06e5424183823eed95cda;p=lilypond.git diff --git a/lily/clef-engraver.cc b/lily/clef-engraver.cc index b9813a1aa9..05c9420623 100644 --- a/lily/clef-engraver.cc +++ b/lily/clef-engraver.cc @@ -1,254 +1,232 @@ /* + This file is part of LilyPond, the GNU music typesetter. - clef-engraver.cc -- implement Clef_engraver + Copyright (C) 1997--2015 Han-Wen Nienhuys + Mats Bengtsson - source file of the GNU LilyPond music typesetter + LilyPond is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. - (c) 1997--2000 Han-Wen Nienhuys , + LilyPond is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. - Mats Bengtsson + You should have received a copy of the GNU General Public License + along with LilyPond. If not, see . */ -#include +#include +using namespace std; -#include "key-item.hh" -#include "local-key-item.hh" -#include "bar.hh" -#include "note-head.hh" +#include "item.hh" +#include "context.hh" #include "staff-symbol-referencer.hh" -#include "debug.hh" -#include "command-request.hh" -#include "array.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 { - Item * clef_p_; - 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); +#include "translator.icc" +#include "lily-imports.hh" + +class Clef_engraver : public Engraver +{ public: - VIRTUAL_COPY_CONS(Translator); - int c0_position_i_; - int clef_position_i_; - // junkme. - Direction octave_dir_; - SCM clef_glyph_; // no need for protection. Always referenced somewhere else. - - Clef_engraver(); - - bool first_b_; - - Protected_scm current_settings_; -}; + TRANSLATOR_DECLARATIONS (Clef_engraver); +protected: + void stop_translation_timestep (); + void process_music (); + void acknowledge_bar_line (Grob_info); + + virtual void derived_mark () const; +private: + Item *clef_; + Item *modifier_; + + SCM prev_glyph_; + SCM prev_cpos_; + SCM prev_transposition_; + void create_clef (); + void set_glyph (); + void inspect_clef_properties (); +}; -Clef_engraver::Clef_engraver() +void +Clef_engraver::derived_mark () const { - 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; - octave_dir_ = CENTER; - octavate_p_ = 0; + scm_gc_mark (prev_transposition_); + scm_gc_mark (prev_cpos_); + scm_gc_mark (prev_glyph_); } -bool -Clef_engraver::set_type (String s) +Clef_engraver::Clef_engraver (Context *c) + : Engraver (c) { - 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)); - } + clef_ = 0; + modifier_ = 0; - 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_transposition_ = 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 () { - Item * item =dynamic_cast (info.elem_l_); - if (item) - { - if (Bar::has_interface (info.elem_l_) - && gh_string_p (clef_glyph_)) - create_clef(); - - - if (Note_head::has_interface (item) - || Local_key_item::has_interface (item)) - { - int p = int (Staff_symbol_referencer::position_f (item)) + c0_position_i_; - Staff_symbol_referencer::set_position (item,p); - - } - else if (Key_item::has_interface (item)) - { - item->set_elt_property ("c0-position", gh_int2scm (c0_position_i_)); - } - } + SCM glyph_sym = ly_symbol2scm ("glyph"); + SCM basic = ly_symbol2scm ("Clef"); + + execute_pushpop_property (context (), basic, glyph_sym, SCM_UNDEFINED); + execute_pushpop_property (context (), basic, glyph_sym, get_property ("clefGlyph")); } +/** + 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_bar_line (Grob_info info) { - SCM def = get_property ("defaultClef"); - if (gh_string_p (def)) - { - set_type (ly_scm2string (def)); - } + Item *item = info.item (); + if (item && 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); + + clef_ = c; + SCM cpos = get_property ("clefPosition"); + + if (scm_is_number (cpos)) + clef_->set_property ("staff-position", cpos); + + SCM transp = get_property ("clefTransposition"); + if (scm_is_number (transp) && scm_to_int (transp)) + { + Item *g = make_item ("ClefModifier", SCM_EOL); + + int abs_transp = scm_to_int (transp); + int dir = sign (abs_transp); + abs_transp = abs (abs_transp) + 1; + + SCM txt = scm_number_to_string (scm_from_int (abs_transp), + scm_from_int (10)); - return true; + SCM style = get_property ("clefTranspositionStyle"); + + SCM formatter = get_property ("clefTranspositionFormatter"); + if (ly_is_procedure (formatter)) + g->set_property ("text", scm_call_2 (formatter, txt, style)); + + Side_position_interface::add_support (g, clef_); + + g->set_parent (clef_, Y_AXIS); + g->set_parent (clef_, X_AXIS); + g->set_property ("direction", scm_from_int (dir)); + modifier_ = g; + } } - else - return false; +} +void +Clef_engraver::process_music () +{ + inspect_clef_properties (); +} +static void apply_on_children (Context *context, SCM fun) +{ + scm_call_1 (fun, context->self_scm ()); + for (SCM s = context->children_contexts (); + scm_is_pair (s); s = scm_cdr (s)) + apply_on_children (unsmob (scm_car (s)), fun); } void -Clef_engraver::create_clef() +Clef_engraver::inspect_clef_properties () { - if (!clef_p_) + SCM glyph = get_property ("clefGlyph"); + SCM clefpos = get_property ("clefPosition"); + SCM transposition = get_property ("clefTransposition"); + SCM force_clef = get_property ("forceClef"); + + if (scm_is_null (clefpos) + || !ly_is_equal (glyph, prev_glyph_) + || !ly_is_equal (clefpos, prev_cpos_) + || !ly_is_equal (transposition, prev_transposition_) + || to_boolean (force_clef)) { - Item *c= new Item ( current_settings_); - announce_element (Score_element_info (c, clef_req_l_)); + apply_on_children (context (), Lily::invalidate_alterations); - Staff_symbol_referencer::set_interface (c); - - clef_p_ = c; - } - Staff_symbol_referencer::set_position(clef_p_, clef_position_i_); - if (octave_dir_) - { - Item * g = new Item (get_property ("basicOctavateEightProperties")); - Side_position::set_axis (g,Y_AXIS); - Side_position::add_support (g,clef_p_); - - g->set_parent (clef_p_, Y_AXIS); - g->set_parent (clef_p_, X_AXIS); - g->add_offset_callback (Side_position::aligned_on_self, X_AXIS); - g->add_offset_callback (Side_position::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_)); - } -} + set_glyph (); + if (scm_is_true (prev_cpos_) || to_boolean (get_property ("firstClef"))) + create_clef (); + if (clef_) + clef_->set_property ("non-default", SCM_BOOL_T); -void -Clef_engraver::do_process_music() -{ - if (clef_req_l_ || first_b_) + prev_cpos_ = clefpos; + prev_glyph_ = glyph; + prev_transposition_ = transposition; + } + + if (to_boolean (force_clef)) { - create_clef(); - clef_p_->set_elt_property ("non-default", SCM_BOOL_T); + SCM prev; + Context *w = context ()->where_defined (ly_symbol2scm ("forceClef"), &prev); + 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"))) - { - vis = ly_symbol2scm ("all-visible"); - vis = scm_eval (vis); - } - - if (vis) - { - clef_p_->set_elt_property("visibility-lambda", vis); - if (octavate_p_) - octavate_p_->set_elt_property("visibility-lambda", vis); - } - - typeset_element (clef_p_); - clef_p_ =0; - - if (octavate_p_) - typeset_element(octavate_p_); - - octavate_p_ = 0; - } + if (to_boolean (clef_->get_property ("non-default"))) + { + SCM vis = get_property ("explicitClefVisibility"); + + if (scm_is_vector (vis)) + clef_->set_property ("break-visibility", vis); + } - first_b_ = 0; + clef_ = 0; + + modifier_ = 0; + } } void -Clef_engraver::do_post_move_processing() +Clef_engraver::boot () { - clef_req_l_ = 0; + ADD_ACKNOWLEDGER (Clef_engraver, bar_line); } -ADD_THIS_TRANSLATOR(Clef_engraver); - +ADD_TRANSLATOR (Clef_engraver, + /* doc */ + "Determine and set reference point for pitches.", + + /* create */ + "Clef " + "ClefModifier ", + + /* read */ + "clefGlyph " + "clefTransposition " + "clefTranspositionStyle " + "clefPosition " + "explicitClefVisibility " + "forceClef ", + + /* write */ + "" + );