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#include "library/coverart.h"
CoverArt::CoverArt()
: m_pConfig(NULL),
m_cDefaultImageFormat("jpg") {
}
CoverArt::~CoverArt() {
}
void CoverArt::setConfig(ConfigObject<ConfigValue>* pConfig) {
m_pConfig = pConfig;
if (!QDir().mkpath(getStoragePath())) {
qDebug() << "WARNING: Could not create cover arts storage path. "
<< "Mixxx will be unable to store analyses.";
}
}
QString CoverArt::getStoragePath() const {
QString settingsPath = m_pConfig->getSettingsPath();
QDir dir(settingsPath.append("/coverArt/"));
return dir.absolutePath().append("/");
}
bool CoverArt::deleteFile(const QString& location) {
QFile file(location);
if (file.exists()) {
return file.remove();
}
return true;
}
bool CoverArt::saveFile(QImage cover, QString location) {
if (cover.save(location, m_cDefaultImageFormat)) {
return true;
}
return false;
}
QString CoverArt::saveEmbeddedCover(QImage cover, QString artist,
QString album, QString filename) {
if (cover.isNull()) {
return "";
}
QString coverName = getDefaultCoverName(artist, album, filename);
QString location = getDefaultCoverLocation(coverName);
if (saveFile(cover, location)) {
return location;
}
return "";
}
QString CoverArt::searchInDiskCache(QString coverArtName) {
// Some image extensions
QStringList extList;
extList << ".jpg" << ".jpeg" << ".png" << ".gif" << ".bmp";
// Look for cover art in disk-cache directory.
QString location = getStoragePath().append(coverArtName);
foreach (QString ext, extList) {
if(QFile::exists(location + ext)) {
return location + ext;
}
}
return QString();
}
QString CoverArt::searchInTrackDirectory(QString directory) {
// Implements regular expressions for image extensions
static QList<QRegExp> regExpList;
QLatin1String format(".(jpe?g|png|gif|bmp)");
if (regExpList.isEmpty()) {
regExpList << QRegExp(".*cover.*" + format, Qt::CaseInsensitive)
<< QRegExp(".*album.*" + format, Qt::CaseInsensitive)
<< QRegExp(".*front.*" + format, Qt::CaseInsensitive)
<< QRegExp(".*folder.*" + format, Qt::CaseInsensitive);
}
const QFileInfoList fileList = QDir(directory)
.entryInfoList(QDir::NoDotAndDotDot |
QDir::Files |
QDir::Readable);
foreach (QFileInfo f, fileList) {
const QString filename = f.fileName();
foreach (QRegExp re, regExpList) {
if (filename.contains(re)) {
return f.absoluteFilePath();
}
}
}
return QString();
}
QString CoverArt::getDefaultCoverName(QString artist,
QString album,
QString filename) {
if (artist.isEmpty() && album.isEmpty()) {
return filename;
} else {
return artist + " - " + album;
}
}
QString CoverArt::getDefaultCoverLocation(QString coverArtName) {
return getStoragePath() + coverArtName + "." + m_cDefaultImageFormat;
}
QString CoverArt::getDefaultCoverLocation(TrackPointer pTrack) {
QString coverArtName = getDefaultCoverName(pTrack->getArtist(),
pTrack->getAlbum(),
pTrack->getFilename());
return getDefaultCoverLocation(coverArtName);
}
QString CoverArt::searchCoverArtFile(TrackPointer pTrack) {
QString coverArtName = getDefaultCoverName(pTrack->getArtist(),
pTrack->getAlbum(),
pTrack->getFilename());
//
// Step 1: Look for cover art in disk-cache directory.
//
QString coverLocation = searchInDiskCache(coverArtName);
if (!coverLocation.isEmpty()) {
return coverLocation; // FOUND!
}
//
// Step 2: Look for embedded cover art.
//
coverLocation = pTrack->parseCoverArt();
if (!coverLocation.isEmpty()) {
return coverLocation; // FOUND!
}
//
// Step 3: Look for cover stored in track diretory.
//
QImage image(searchInTrackDirectory(pTrack->getDirectory()));
if (!image.isNull()) {
// try to store the image in our disk-cache!
coverLocation = getDefaultCoverLocation(coverArtName);
if (saveFile(image, coverLocation)) {
return coverLocation; // FOUND!
}
}
//
// Not found.
//
return QString();
}
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