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153 lines
3.8 KiB
153 lines
3.8 KiB
/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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/*
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Rosegarden
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A MIDI and audio sequencer and musical notation editor.
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This program is Copyright 2000-2008
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Guillaume Laurent <glaurent@telegraph-road.org>,
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Chris Cannam <cannam@all-day-breakfast.com>,
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Richard Bown <richard.bown@ferventsoftware.com>
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The moral rights of Guillaume Laurent, Chris Cannam, and Richard
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Bown to claim authorship of this work have been asserted.
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Other copyrights also apply to some parts of this work. Please
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see the AUTHORS file and individual file headers for details.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version. See the file
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COPYING included with this distribution for more information.
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*/
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#include "Fingering.h"
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#include "misc/Debug.h"
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#include <tqstringlist.h>
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#include <sstream>
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#include <algorithm>
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#include <klocale.h>
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namespace Rosegarden
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{
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namespace Guitar
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{
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Fingering::Fingering(unsigned int nbStrings) :
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m_strings(nbStrings, MUTED)
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{
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}
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Fingering::Fingering(TQString s)
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{
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TQString errString;
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Fingering t = parseFingering(s, errString);
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m_strings = t.m_strings;
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}
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unsigned int
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Fingering::getStartFret() const
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{
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int min = 999, max = 0;
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for(std::vector<int>::const_iterator i = m_strings.begin(); i != m_strings.end(); ++i) {
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if (*i < min && *i > 0)
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min = *i;
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if (*i > max)
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max = *i;
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}
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if (max < 4)
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min = 1;
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return min == 999 ? 1 : min;
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}
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bool
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Fingering::hasBarre() const
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{
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int lastStringStatus = m_strings[getNbStrings() - 1];
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return ((m_strings[0] > OPEN && m_strings[0] == lastStringStatus) ||
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(m_strings[1] > OPEN && m_strings[1] == lastStringStatus) ||
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(m_strings[2] > OPEN && m_strings[2] == lastStringStatus));
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}
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Fingering::Barre
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Fingering::getBarre() const
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{
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int lastStringStatus = m_strings[getNbStrings() - 1];
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Barre res;
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res.fret = lastStringStatus;
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for(unsigned int i = 0; i < 3; ++i) {
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if (m_strings[i] > OPEN && m_strings[i] == lastStringStatus)
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res.start = i;
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break;
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}
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res.end = 5;
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return res;
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}
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Fingering
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Fingering::parseFingering(const TQString& ch, TQString& errorString)
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{
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TQStringList tokens = TQStringList::split(' ', ch);
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unsigned int idx = 0;
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Fingering fingering;
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for(TQStringList::iterator i = tokens.begin(); i != tokens.end() && idx < fingering.getNbStrings(); ++i, ++idx) {
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TQString t = *i;
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bool b = false;
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unsigned int fn = t.toUInt(&b);
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if (b) {
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// NOTATION_DEBUG << "Fingering::parseFingering : '" << t << "' = " << fn << endl;
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fingering[idx] = fn;
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} else if (t.lower() == "x") {
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// NOTATION_DEBUG << "Fingering::parseFingering : '" << t << "' = MUTED\n";
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fingering[idx] = MUTED;
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} else {
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errorString = i18n("couldn't parse fingering '%1' in '%2'").arg(t).arg(ch);
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}
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}
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return fingering;
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}
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std::string Fingering::toString() const
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{
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std::stringstream s;
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for(std::vector<int>::const_iterator i = m_strings.begin(); i != m_strings.end(); ++i) {
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if (*i >= 0)
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s << *i << ' ';
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else
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s << "x ";
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}
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return s.str();
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}
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bool operator<(const Fingering& a, const Fingering& b)
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{
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for(unsigned int i = 0; i < Fingering::DEFAULT_NB_STRINGS; ++i) {
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if (a.getStringStatus(i) != b.getStringStatus(i)) {
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return a.getStringStatus(i) < b.getStringStatus(i);
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}
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}
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return false;
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}
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}
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}
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