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#include <QImage>
#include <QtDebug>
#include <QThread>
#include "library/dao/coverartdao.h"
#include "library/queryutil.h"
CoverArtDAO::CoverArtDAO(QSqlDatabase& database, ConfigObject<ConfigValue>* pConfig)
: m_pConfig(pConfig),
m_database(database) {
if (!QDir().mkpath(getStoragePath())) {
qDebug() << "WARNING: Could not create cover arts storage path. "
<< "Mixxx will be unable to store analyses.";
}
}
CoverArtDAO::~CoverArtDAO() {
}
void CoverArtDAO::initialize() {
qDebug() << "CoverArtDAO::initialize"
<< QThread::currentThread()
<< m_database.connectionName();
}
QString CoverArtDAO::getStoragePath() const {
QString settingsPath = m_pConfig->getSettingsPath();
QDir dir(settingsPath.append("/coverArt/"));
return dir.absolutePath().append("/");
}
void CoverArtDAO::saveCoverArt(TrackInfoObject* pTrack) {
// search cover art file (in disk) and get its location
QString coverArtLocation = searchCoverArtFile(pTrack);
// cover art found
if (coverArtLocation != "") {
// search cover.location in database
int coverId = getCoverArtID(coverArtLocation);
QSqlQuery query(m_database);
// if cover art isn't in database
if (!coverId) { // insert new
query.prepare(QString(
"INSERT INTO cover_art (location) "
"VALUES (:location)"));
query.bindValue(":location", coverArtLocation);
if (!query.exec()) {
LOG_FAILED_QUERY(query) << "couldn't save new cover art";
return;
}
coverId = query.lastInsertId().toInt();
}
// update library.cover_art with coverId
query.prepare(QString(
"UPDATE library "
"SET cover_art = :coverId "
"WHERE id = :trackId"));
query.bindValue(":coverId", coverId);
query.bindValue(":trackId", pTrack->getId());
if (!query.exec()) {
LOG_FAILED_QUERY(query) << "couldn't update existing cover art";
return;
}
}
}
int CoverArtDAO::getCoverArtID(QString location) {
QSqlQuery query(m_database);
query.prepare(QString(
"SELECT id FROM cover_art "
"WHERE location = :location"));
query.bindValue(":location", location);
if (query.exec()) {
if (query.next()) {
return query.value(0).toInt();
}
} else {
LOG_FAILED_QUERY(query);
}
return 0;
}
QString CoverArtDAO::getCoverArtLocation(int id) {
QSqlQuery query(m_database);
query.prepare(QString(
"SELECT location FROM cover_art "
"WHERE id = :id"));
query.bindValue(":id", id);
if (query.exec()) {
if (query.next()) {
return query.value(0).toString();
}
} else {
LOG_FAILED_QUERY(query);
}
return 0;
}
QString CoverArtDAO::searchCoverArtFile(TrackInfoObject* pTrack) {
const char* defaultImageFormat = "jpg";
// default cover art name
QString coverArtName;
if (pTrack->getArtist() != "") {
coverArtName.append(pTrack->getArtist());
}
if (pTrack->getAlbum() != "") {
coverArtName.append(pTrack->getAlbum());
}
if (coverArtName == "") {
coverArtName = pTrack->getFilename();
}
// Starts with default location
QString coverArtLocation = getStoragePath().append(coverArtName);
// Some image extensions
QStringList extList;
extList << "jpg" << "jpeg" << "png" << "gif" << "bmp";
//
// Step 1: Look for cover art in cache directory.
//
foreach (QString ext, extList) {
if(QFile::exists(coverArtLocation + ext)) {
return coverArtLocation + "." + ext;
}
}
//
// Step 2: Look for embedded cover art.
//
QImage image = pTrack->getCoverArt();
// If the track has embedded cover art, store it
if (!image.isNull()) {
if(image.save(coverArtLocation, defaultImageFormat)) {
return coverArtLocation + "." + defaultImageFormat;
}
}
//
// Step 3: Look for cover stored in track diretory
//
// 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(".*front.*" + format, Qt::CaseInsensitive)
<< QRegExp(".*folder.*" + format, Qt::CaseInsensitive);
}
const QFileInfoList fileList = QDir(pTrack->getDirectory())
.entryInfoList(QDir::NoDotAndDotDot |
QDir::Files |
QDir::Readable);
foreach (QFileInfo f, fileList) {
const QString filename = f.fileName();
foreach (QRegExp re, regExpList) {
if (filename.contains(re)) {
QImage image(f.absoluteFilePath());
if (image.save(coverArtLocation, defaultImageFormat)) {
return coverArtLocation + "." + defaultImageFormat;
}
break;
}
}
}
//
// Not found.
//
return "";
}
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