X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fbar-number-engraver.cc;h=82bc09f0ed02160e009868013bb31fcb9299f517;hb=d53c83975e6d5a913b6eb88f1e26b83754721f4c;hp=697187003c18dae059bf35f4107e0ee7af743162;hpb=a6ee9dcd388111e842064a8d46ab06c4897a00d2;p=lilypond.git diff --git a/lily/bar-number-engraver.cc b/lily/bar-number-engraver.cc index 697187003c..82bc09f0ed 100644 --- a/lily/bar-number-engraver.cc +++ b/lily/bar-number-engraver.cc @@ -1,126 +1,129 @@ /* - 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--2011 Han-Wen Nienhuys - (c) 1997--2002 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 "lily-guile.hh" #include "paper-column.hh" -#include "paper-def.hh" +#include "output-def.hh" #include "side-position-interface.hh" -#include "item.hh" -#include "moment.hh" #include "engraver.hh" -#include "translator-group.hh" +#include "context.hh" +#include "grob-array.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_; protected: - virtual void stop_translation_timestep (); - virtual void acknowledge_grob (Grob_info); - virtual void process_music (); + void stop_translation_timestep (); + DECLARE_ACKNOWLEDGER (break_alignment); + void process_music (); void create_items (); - TRANSLATOR_DECLARATIONS( Bar_number_engraver ); + TRANSLATOR_DECLARATIONS (Bar_number_engraver); }; - -/* - TODO: more advanced formatting via SCM function, perhaps barnumbers - every 5 measures? */ - void Bar_number_engraver::process_music () { - // todo include (&&!time->cadenza_b_) - SCM wb = get_property ("whichBar"); - - if (gh_string_p (wb)) + + if (scm_is_string (wb)) { - SCM bn = get_property ("currentBarNumber"); - SCM smp = get_property ("measurePosition"); - int ibn = gh_number_p (bn) ? gh_scm2int(bn) : 1; - - Moment mp = (unsmob_moment (smp)) ? *unsmob_moment (smp) : Moment (0); - if (mp.main_part_ == Rational (0) - && ibn != 1) + Moment mp (robust_scm2moment (get_property ("measurePosition"), Moment (0))); + if (mp.main_part_ == Rational (0)) { - create_items (); - - // guh. - text_->set_grob_property ("text", - ly_str02scm (to_string (gh_scm2int (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_1 (proc, bn))) + { + create_items (); + // guh. + text_->set_property + ("text", scm_number_to_string (bn, scm_from_int (10))); + } } } - } - - Bar_number_engraver::Bar_number_engraver () { - text_ =0; + text_ = 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_grob_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 () { if (text_) { - text_->set_grob_property ("side-support-elements", get_property ("stavesFound")); - typeset_grob (text_); - text_ =0; + text_->set_object ("side-support-elements", + grob_list_to_grob_array (get_property ("stavesFound"))); + text_ = 0; } } - void Bar_number_engraver::create_items () { if (text_) return; - SCM b = get_property ("BarNumber"); - text_ = new Item (b); - Side_position_interface::set_axis (text_,Y_AXIS); - - announce_grob(text_, SCM_EOL); + text_ = make_item ("BarNumber", SCM_EOL); } -ENTER_DESCRIPTION(Bar_number_engraver, -/* descr */ "A bar number is created whenever measurePosition is zero. It is -put on top of all staves, and appears only at left side of the staff.", -/* creats*/ "BarNumber", -/* acks */ "break-aligned-interface", -/* reads */ "currentBarNumber stavesFound" , -/* write */ ""); + +ADD_ACKNOWLEDGER (Bar_number_engraver, break_alignment); + +ADD_TRANSLATOR (Bar_number_engraver, + /* 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 " + "barNumberVisibility ", + + /* write */ + "" + );