X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fbar-number-engraver.cc;h=eb4af480546e6c54456ca40cbdc0e03442b2bf3b;hb=47db9a3883d726ca53e2133a3b2298f78dd6a32e;hp=6ef193e2ebde5fa40abb8547ced1638df00e7e17;hpb=5d1ddaf889233f8e5c32a118f9e843e1becca2d2;p=lilypond.git diff --git a/lily/bar-number-engraver.cc b/lily/bar-number-engraver.cc index 6ef193e2eb..eb4af48054 100644 --- a/lily/bar-number-engraver.cc +++ b/lily/bar-number-engraver.cc @@ -1,101 +1,171 @@ /* - 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--2005 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" -/* - -TODO: detect the top staff (stavesFound), and acknowledge staff-group -system-start-delims. If we find these, and the top staff is in the -staff-group, add padding to the bar number. +#include "translator.icc" +/* + TODO: detect the top staff (stavesFound), and acknowledge staff-group + system-start-delims. If we find these, and the top staff is in the + staff-group, add padding to the bar number. */ - - class Bar_number_engraver : public Engraver { protected: - Item* text_; + Item *text_; + int alternative_starting_bar_number_; + int alternative_number_; + int alternative_number_increment_; + Stream_event *alternative_event_; + protected: - virtual void stop_translation_timestep (); - virtual void acknowledge_grob (Grob_info); - virtual void process_music (); + void stop_translation_timestep (); + DECLARE_TRANSLATOR_LISTENER (alternative); + DECLARE_ACKNOWLEDGER (break_alignment); + void process_music (); void create_items (); - TRANSLATOR_DECLARATIONS (Bar_number_engraver ); + TRANSLATOR_DECLARATIONS (Bar_number_engraver); }; +IMPLEMENT_TRANSLATOR_LISTENER (Bar_number_engraver, alternative); +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 = get_property ("alternativeNumberingStyle") == ly_symbol2scm ("numbers") + || 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 () { - // todo include (&&!time->cadenza_b_) - SCM wb = get_property ("whichBar"); - + 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_c_procedure_p (proc) - && to_boolean (scm_call_1(proc, bn))) - { - create_items (); - // guh. - text_->set_property - ("text", scm_makfrom0str (to_string (scm_to_int (bn)).to_str0 ())); - } - } + 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 (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 () { text_ = 0; + alternative_starting_bar_number_ = 0; + alternative_number_increment_ = 0; + alternative_number_ = INT_MIN; + alternative_event_ = 0; } - void -Bar_number_engraver::acknowledge_grob (Grob_info inf) +Bar_number_engraver::acknowledge_break_alignment (Grob_info inf) { - Grob * s = inf.grob_; + Grob *s = inf.grob (); if (text_ - && dynamic_cast (s) - && s->get_property ("break-align-symbol") == ly_symbol2scm ("left-edge")) + && dynamic_cast (s)) { - /* - 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 +void Bar_number_engraver::stop_translation_timestep () { + alternative_event_ = 0; if (text_) { - text_->set_property ("side-support-elements", get_property ("stavesFound")); - + text_->set_object ("side-support-elements", + grob_list_to_grob_array (get_property ("stavesFound"))); text_ = 0; } } - void Bar_number_engraver::create_items () { @@ -103,18 +173,30 @@ Bar_number_engraver::create_items () return; text_ = make_item ("BarNumber", SCM_EOL); - Side_position_interface::set_axis (text_, Y_AXIS); } +ADD_ACKNOWLEDGER (Bar_number_engraver, break_alignment); + ADD_TRANSLATOR (Bar_number_engraver, -/* descr */ "A bar number is created whenever measurePosition is zero. 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}}. " - , - -/* creats*/ "BarNumber", -/* accepts */ "", -/* acks */ "break-aligned-interface", -/* reads */ "currentBarNumber 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 " + );