1 files changed, 152 insertions, 0 deletions
diff --git a/src/gui/editors/guitar/Fingering.cpp b/src/gui/editors/guitar/Fingering.cpp
new file mode 100644
index 0000000..dd1edbd
--- /dev/null
+++ b/src/gui/editors/guitar/Fingering.cpp
@@ -0,0 +1,152 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Rosegarden
+    A MIDI and audio sequencer and musical notation editor.
+
+    This program is Copyright 2000-2008
+        Guillaume Laurent   <glaurent@telegraph-road.org>,
+        Chris Cannam        <cannam@all-day-breakfast.com>,
+        Richard Bown        <richard.bown@ferventsoftware.com>
+
+    The moral rights of Guillaume Laurent, Chris Cannam, and Richard
+    Bown to claim authorship of this work have been asserted.
+
+    Other copyrights also apply to some parts of this work.  Please
+    see the AUTHORS file and individual file headers for details.
+
+    This program 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 2 of the
+    License, or (at your option) any later version.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+#include "Fingering.h"
+
+#include "misc/Debug.h"
+
+#include <qstringlist.h>
+#include <sstream>
+#include <algorithm>
+#include <klocale.h>
+
+namespace Rosegarden
+{
+
+namespace Guitar
+{
+    
+Fingering::Fingering(unsigned int nbStrings) :
+    m_strings(nbStrings, MUTED)
+{
+}
+
+Fingering::Fingering(QString s)
+{
+    QString errString;
+    Fingering t = parseFingering(s, errString);
+    m_strings = t.m_strings;
+}
+
+unsigned int
+Fingering::getStartFret() const
+{
+    int min = 999, max = 0;
+    for(std::vector<int>::const_iterator i = m_strings.begin(); i != m_strings.end(); ++i) {
+        if (*i < min && *i > 0)
+            min = *i;
+        if (*i > max)
+            max = *i;
+    }
+    
+    if (max < 4)
+        min = 1;
+    
+    return min == 999 ? 1 : min;
+}
+
+bool
+Fingering::hasBarre() const
+{
+    int lastStringStatus = m_strings[getNbStrings() - 1];
+    
+    return ((m_strings[0] > OPEN && m_strings[0] == lastStringStatus) ||
+            (m_strings[1] > OPEN && m_strings[1] == lastStringStatus) ||
+            (m_strings[2] > OPEN && m_strings[2] == lastStringStatus));
+}
+
+Fingering::Barre
+Fingering::getBarre() const
+{
+    int lastStringStatus = m_strings[getNbStrings() - 1];
+
+    Barre res;
+    
+    res.fret = lastStringStatus;
+    
+    for(unsigned int i = 0; i < 3; ++i) {
+        if (m_strings[i] > OPEN && m_strings[i] == lastStringStatus)
+            res.start = i;
+            break;
+    }
+
+    res.end = 5;
+    
+    return res;        
+}
+
+Fingering
+Fingering::parseFingering(const QString& ch, QString& errorString)
+{
+    QStringList tokens = QStringList::split(' ', ch);
+
+    unsigned int idx = 0;
+    Fingering fingering;
+    
+    for(QStringList::iterator i = tokens.begin(); i != tokens.end() && idx < fingering.getNbStrings(); ++i, ++idx) {
+        QString t = *i;
+        bool b = false;
+        unsigned int fn = t.toUInt(&b);
+        if (b) {
+//            NOTATION_DEBUG << "Fingering::parseFingering : '" << t << "' = " << fn << endl;  
+            fingering[idx] = fn;
+        } else if (t.lower() == "x") {
+//            NOTATION_DEBUG << "Fingering::parseFingering : '" << t << "' = MUTED\n";  
+            fingering[idx] = MUTED;
+        } else {
+            errorString = i18n("couldn't parse fingering '%1' in '%2'").arg(t).arg(ch);            
+        }
+    }
+
+    return fingering;
+}
+
+
+std::string Fingering::toString() const
+{
+    std::stringstream s;
+    
+    for(std::vector<int>::const_iterator i = m_strings.begin(); i != m_strings.end(); ++i) {
+        if (*i >= 0)
+            s << *i << ' ';
+        else
+            s << "x ";
+    }
+
+    return s.str();
+}
+
+bool operator<(const Fingering& a, const Fingering& b)
+{
+    for(unsigned int i = 0; i < Fingering::DEFAULT_NB_STRINGS; ++i) {
+        if (a.getStringStatus(i) != b.getStringStatus(i)) {
+            return a.getStringStatus(i) < b.getStringStatus(i);
+        }
+    }
+    return false;
+}    
+
+}
+
+}