X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fbar-number-engraver.cc;h=44f155df6e24298ca81a6f20c45b8b63904abd74;hb=5d84bfad4626892bcffd05adcced53c8a2329047;hp=3693f97b3e286095f23a10cb94a38334d486432c;hpb=00e3e15364b9d3c94cda1bcab9f889bb95f6832d;p=lilypond.git diff --git a/lily/bar-number-engraver.cc b/lily/bar-number-engraver.cc index 3693f97b3e..44f155df6e 100644 --- a/lily/bar-number-engraver.cc +++ b/lily/bar-number-engraver.cc @@ -1,17 +1,31 @@ /* - bar-number-engraver.cc -- implement Bar_number_engraver + This file is part of LilyPond, the GNU music typesetter. - source file of the GNU LilyPond music typesetter + Copyright (C) 1997--2015 Han-Wen Nienhuys - (c) 1997--2007 Han-Wen Nienhuys + 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. + + 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. + + You should have received a copy of the GNU General Public License + along with LilyPond. If not, see . */ +#include // for reverse + #include "paper-column.hh" #include "output-def.hh" #include "side-position-interface.hh" #include "engraver.hh" #include "context.hh" #include "grob-array.hh" +#include "stream-event.hh" #include "translator.icc" @@ -24,15 +38,53 @@ class Bar_number_engraver : public Engraver { protected: Item *text_; + int alternative_starting_bar_number_; + int alternative_number_; + int alternative_number_increment_; + Stream_event *alternative_event_; + protected: void stop_translation_timestep (); - DECLARE_ACKNOWLEDGER (break_aligned); - DECLARE_ACKNOWLEDGER (break_alignment); + void listen_alternative (Stream_event *); + void acknowledge_break_alignment (Grob_info); void process_music (); void create_items (); TRANSLATOR_DECLARATIONS (Bar_number_engraver); }; +void +Bar_number_engraver::listen_alternative (Stream_event *ev) +{ + if (alternative_event_) + return; + + alternative_event_ = ev; + int current_barnumber = robust_scm2int (get_property ("currentBarNumber"), 0); + Direction alternative_dir = robust_scm2dir (ev->get_property ("alternative-dir"), CENTER); + bool make_alternative = scm_is_eq (get_property ("alternativeNumberingStyle"), + ly_symbol2scm ("numbers")) + || scm_is_eq (get_property ("alternativeNumberingStyle"), + ly_symbol2scm ("numbers-with-letters")); + if (make_alternative) + { + /* + if we're starting the first alternative, we set the starting + bar number to the current bar number + */ + if (alternative_dir == LEFT) + alternative_starting_bar_number_ = current_barnumber; + + /* + if the alternative is not the last one, we send the + current bar number back to the alternative bar number. + */ + if (alternative_dir < RIGHT) + current_barnumber = alternative_starting_bar_number_; + + context ()->set_property ("currentBarNumber", scm_from_int (current_barnumber)); + } +} + void Bar_number_engraver::process_music () { @@ -41,49 +93,58 @@ Bar_number_engraver::process_music () if (scm_is_string (wb)) { Moment mp (robust_scm2moment (get_property ("measurePosition"), Moment (0))); - if (mp.main_part_ == Rational (0)) - { - SCM bn = get_property ("currentBarNumber"); - SCM proc = get_property ("barNumberVisibility"); - if (scm_is_number (bn) && ly_is_procedure (proc) - && to_boolean (scm_call_1 (proc, bn))) - { - create_items (); - // guh. - text_->set_property - ("text", scm_number_to_string (bn, scm_from_int (10))); - } - } + SCM bn = get_property ("currentBarNumber"); + SCM proc = get_property ("barNumberVisibility"); + if (scm_is_number (bn) && ly_is_procedure (proc) + && to_boolean (scm_call_2 (proc, bn, mp.smobbed_copy ()))) + { + create_items (); + SCM alternative_style = get_property ("alternativeNumberingStyle"); + string text_tag = ""; + if (scm_is_eq (alternative_style, ly_symbol2scm ("numbers-with-letters"))) + { + if (alternative_event_) + { + Direction alternative_dir = robust_scm2dir (alternative_event_->get_property ("alternative-dir"), RIGHT); + switch (alternative_dir) + { + case LEFT: + alternative_number_ = 0; + break; + case CENTER: + break; + case RIGHT: + alternative_number_ = INT_MIN; + break; + default: + assert (false); + } + alternative_number_ += alternative_number_increment_; + + alternative_number_increment_ = robust_scm2int (alternative_event_->get_property ("alternative-increment"), 1); + } + } + SCM formatter = get_property ("barNumberFormatter"); + if (ly_is_procedure (formatter)) + text_->set_property ("text", scm_call_4 (formatter, + bn, + mp.smobbed_copy (), + scm_from_int (alternative_number_), + context ()->self_scm ())); + } } } -Bar_number_engraver::Bar_number_engraver () +Bar_number_engraver::Bar_number_engraver (Context *c) + : Engraver (c) { text_ = 0; + alternative_starting_bar_number_ = 0; + alternative_number_increment_ = 0; + alternative_number_ = INT_MIN; + alternative_event_ = 0; } - -/* - see rehearsal mark comments. - */ -void -Bar_number_engraver::acknowledge_break_aligned (Grob_info inf) -{ - Grob *s = inf.grob (); - if (text_ - && !text_->get_parent (X_AXIS) - && dynamic_cast (s) - && (s->get_property_data ("break-align-symbol") - == text_->get_property_data ("break-align-symbol"))) - { - /* - By default this would land on the Paper_column -- so why - doesn't it work when you leave this out? */ - text_->set_parent (s, X_AXIS); - } -} - - void Bar_number_engraver::acknowledge_break_alignment (Grob_info inf) { @@ -98,10 +159,11 @@ Bar_number_engraver::acknowledge_break_alignment (Grob_info inf) void Bar_number_engraver::stop_translation_timestep () { + alternative_event_ = 0; if (text_) { text_->set_object ("side-support-elements", - grob_list_to_grob_array (get_property ("stavesFound"))); + grob_list_to_grob_array (get_property ("stavesFound"))); text_ = 0; } } @@ -116,21 +178,33 @@ Bar_number_engraver::create_items () } -ADD_ACKNOWLEDGER (Bar_number_engraver, break_aligned); -ADD_ACKNOWLEDGER (Bar_number_engraver, break_alignment); +void +Bar_number_engraver::boot () +{ + ADD_LISTENER (Bar_number_engraver, alternative); + ADD_ACKNOWLEDGER (Bar_number_engraver, break_alignment); +} ADD_TRANSLATOR (Bar_number_engraver, - /* doc */ "A bar number is created whenever measurePosition " - "is zero and when there is a bar line (ie. when @code{whichBar} is set. " - "It is \n" - "put on top of all staves, and appears only at left side of the staff. " - "The staves are taken from @code{stavesFound}, which is maintained by " - "@code{@ref{Staff_collecting_engraver}}. ", - - /* create */ "BarNumber", - /* read */ - "currentBarNumber " - "whichBar " - "stavesFound " - "barNumberVisibility ", - /* write */ ""); + /* doc */ + "A bar number is created whenever @code{measurePosition} is" + " zero and when there is a bar line (i.e., when" + " @code{whichBar} is set). It is put on top of all staves," + " and appears only at the left side of the staff. The staves" + " are taken from @code{stavesFound}, which is maintained by" + " @ref{Staff_collecting_engraver}.", + + /* create */ + "BarNumber ", + + /* read */ + "currentBarNumber " + "whichBar " + "stavesFound " + "barNumberFormatter " + "barNumberVisibility " + "alternativeNumberingStyle ", + + /* write */ + "currentBarNumber " + );