lbajardsilogic@0: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
lbajardsilogic@0: 
lbajardsilogic@0: /*
lbajardsilogic@0:     Sonic Visualiser
lbajardsilogic@0:     An audio file viewer and annotation editor.
lbajardsilogic@0:     Centre for Digital Music, Queen Mary, University of London.
lbajardsilogic@0:     This file copyright 2006 Chris Cannam.
lbajardsilogic@0:     
lbajardsilogic@0:     This program is free software; you can redistribute it and/or
lbajardsilogic@0:     modify it under the terms of the GNU General Public License as
lbajardsilogic@0:     published by the Free Software Foundation; either version 2 of the
lbajardsilogic@0:     License, or (at your option) any later version.  See the file
lbajardsilogic@0:     COPYING included with this distribution for more information.
lbajardsilogic@0: */
lbajardsilogic@0: 
lbajardsilogic@0: #include "RecentFiles.h"
lbajardsilogic@0: 
lbajardsilogic@0: #include <QFileInfo>
lbajardsilogic@0: #include <QSettings>
lbajardsilogic@0: #include <QRegExp>
lbajardsilogic@0: 
lbajardsilogic@0: RecentFiles::RecentFiles(QString settingsGroup, size_t maxCount) :
lbajardsilogic@0:     m_settingsGroup(settingsGroup),
lbajardsilogic@0:     m_maxCount(maxCount)
lbajardsilogic@0: {
lbajardsilogic@0:     read();
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: RecentFiles::~RecentFiles()
lbajardsilogic@0: {
lbajardsilogic@0:     // nothing
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: RecentFiles::read()
lbajardsilogic@0: {
lbajardsilogic@0:     m_names.clear();
lbajardsilogic@0:     QSettings settings;
lbajardsilogic@0:     settings.beginGroup(m_settingsGroup);
lbajardsilogic@0: 
lbajardsilogic@0:     for (size_t i = 0; i < 100; ++i) {
lbajardsilogic@0:         QString key = QString("recent-%1").arg(i);
lbajardsilogic@0:         QString name = settings.value(key, "").toString();
lbajardsilogic@0:         if (name == "") break;
lbajardsilogic@0:         if (i < m_maxCount) m_names.push_back(name);
lbajardsilogic@0:         else settings.setValue(key, "");
lbajardsilogic@0:     }
lbajardsilogic@0: 
lbajardsilogic@0:     settings.endGroup();
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: RecentFiles::write()
lbajardsilogic@0: {
lbajardsilogic@0:     QSettings settings;
lbajardsilogic@0:     settings.beginGroup(m_settingsGroup);
lbajardsilogic@0: 
lbajardsilogic@0:     for (size_t i = 0; i < m_maxCount; ++i) {
lbajardsilogic@0:         QString key = QString("recent-%1").arg(i);
lbajardsilogic@0:         QString name = "";
lbajardsilogic@0:         if (i < m_names.size()) name = m_names[i];
lbajardsilogic@0:         settings.setValue(key, name);
lbajardsilogic@0:     }
lbajardsilogic@0: 
lbajardsilogic@0:     settings.endGroup();
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: RecentFiles::truncateAndWrite()
lbajardsilogic@0: {
lbajardsilogic@0:     while (m_names.size() > m_maxCount) {
lbajardsilogic@0:         m_names.pop_back();
lbajardsilogic@0:     }
lbajardsilogic@0:     write();
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: std::vector<QString>
lbajardsilogic@0: RecentFiles::getRecent() const
lbajardsilogic@0: {
lbajardsilogic@0:     std::vector<QString> names;
lbajardsilogic@0:     for (size_t i = 0; i < m_maxCount; ++i) {
lbajardsilogic@0:         if (i < m_names.size()) {
lbajardsilogic@0:             names.push_back(m_names[i]);
lbajardsilogic@0:         }
lbajardsilogic@0:     }
lbajardsilogic@0:     return names;
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: RecentFiles::add(QString name)
lbajardsilogic@0: {
lbajardsilogic@0:     bool have = false;
lbajardsilogic@0:     for (size_t i = 0; i < m_names.size(); ++i) {
lbajardsilogic@0:         if (m_names[i] == name) {
lbajardsilogic@0:             have = true;
lbajardsilogic@0:             break;
lbajardsilogic@0:         }
lbajardsilogic@0:     }
lbajardsilogic@0:     
lbajardsilogic@0:     if (!have) {
lbajardsilogic@0:         m_names.push_front(name);
lbajardsilogic@0:     } else {
lbajardsilogic@0:         std::deque<QString> newnames;
lbajardsilogic@0:         newnames.push_back(name);
lbajardsilogic@0:         for (size_t i = 0; i < m_names.size(); ++i) {
lbajardsilogic@0:             if (m_names[i] == name) continue;
lbajardsilogic@0:             newnames.push_back(m_names[i]);
lbajardsilogic@0:         }
lbajardsilogic@0:         m_names = newnames;
lbajardsilogic@0:     }
lbajardsilogic@0: 
lbajardsilogic@0:     truncateAndWrite();
lbajardsilogic@0:     emit recentChanged();
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: RecentFiles::addFile(QString name)
lbajardsilogic@0: {
lbajardsilogic@0:     static QRegExp schemeRE("^[a-zA-Z]{2,5}://");
lbajardsilogic@0:     if (schemeRE.indexIn(name) == 0) {
lbajardsilogic@0:         add(name);
lbajardsilogic@0:     } else {
lbajardsilogic@0:         add(QFileInfo(name).absoluteFilePath());
lbajardsilogic@0:     }
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: