void PictureLoader::loadImage(CardInfo *card)
{
QMutexLocker locker(&mutex);
loadQueue.append(PictureToLoad(card));
emit startLoadQueue();
}
PictureLoader::PictureLoader(const QString &__picsPath, bool _picDownload, bool _picDownloadHq, QObject *parent)
: QObject(parent),
_picsPath(__picsPath), picDownload(_picDownload), picDownloadHq(_picDownloadHq),
downloadRunning(false), loadQueueRunning(false)
{
connect(this, SIGNAL(startLoadQueue()), this, SLOT(processLoadQueue()), Qt::QueuedConnection);
networkManager = new QNetworkAccessManager(this);
connect(networkManager, SIGNAL(finished(QNetworkReply *)), this, SLOT(picDownloadFinished(QNetworkReply *)));
}
void PictureLoader::picDownloadFinished(QNetworkReply *reply)
{
QString picsPath = _picsPath;
if (reply->error()) {
qDebug() << "Download failed:" << reply->errorString();
}
const QByteArray &picData = reply->peek(reply->size()); //peek is used to keep the data in the buffer for use by QImageReader
QImage testImage;
QImageReader imgReader;
imgReader.setDecideFormatFromContent(true);
imgReader.setDevice(reply);
QString extension = "." + imgReader.format(); //the format is determined prior to reading the QImageReader data into a QImage object, as that wipes the QImageReader buffer
if (extension == ".jpeg")
extension = ".jpg";
if (imgReader.read(&testImage)) {
QString setName = cardBeingDownloaded.getSetName();
if(!setName.isEmpty())
{
if (!QDir().mkpath(picsPath + "/downloadedPics/" + setName)) {
qDebug() << picsPath + "/downloadedPics/" + setName + " could not be created.";
return;
}
QFile newPic(picsPath + "/downloadedPics/" + setName + "/" + cardBeingDownloaded.getCard()->getCorrectedName() + extension);
if (!newPic.open(QIODevice::WriteOnly))
return;
newPic.write(picData);
newPic.close();
}
emit imageLoaded(cardBeingDownloaded.getCard(), testImage);
} else if (cardBeingDownloaded.getHq()) {
qDebug() << "HQ: received invalid picture. URL:" << reply->request().url();
cardBeingDownloaded.setHq(false);
cardsToDownload.prepend(cardBeingDownloaded);
} else {
qDebug() << "LQ: received invalid picture. URL:" << reply->request().url();
if (cardBeingDownloaded.nextSet()) {
cardBeingDownloaded.setHq(true);
mutex.lock();
loadQueue.prepend(cardBeingDownloaded);
mutex.unlock();
emit startLoadQueue();
} else
emit imageLoaded(cardBeingDownloaded.getCard(), QImage());
}
reply->deleteLater();
startNextPicDownload();
}
void PictureLoader::picDownloadFailed()
{
if (cardBeingDownloaded.nextSet())
{
qDebug() << "Picture NOT found, download failed, moving to next set (newset: " << cardBeingDownloaded.getSetName() << " card: " << cardBeingDownloaded.getCard()->getCorrectedName() << ")";
mutex.lock();
loadQueue.prepend(cardBeingDownloaded);
mutex.unlock();
emit startLoadQueue();
} else {
qDebug() << "Picture NOT found, download failed, no more sets to try: BAILING OUT (oldset: " << cardBeingDownloaded.getSetName() << " card: " << cardBeingDownloaded.getCard()->getCorrectedName() << ")";
cardBeingDownloaded = 0;
emit imageLoaded(cardBeingDownloaded.getCard(), QImage());
}
}
void PictureLoader::loadImage(CardInfo *card)
{
QMutexLocker locker(&mutex);
// avoid queueing the same card more than once
if(card == cardBeingLoaded.getCard() || card == cardBeingDownloaded.getCard())
return;
foreach(PictureToLoad pic, loadQueue)
{
if(pic.getCard() == card)
return;
}
loadQueue.append(PictureToLoad(card));
emit startLoadQueue();
}
PictureLoader::PictureLoader()
: QObject(0),
downloadRunning(false), loadQueueRunning(false)
{
picsPath = settingsCache->getPicsPath();
picDownload = settingsCache->getPicDownload();
connect(this, SIGNAL(startLoadQueue()), this, SLOT(processLoadQueue()), Qt::QueuedConnection);
connect(settingsCache, SIGNAL(picsPathChanged()), this, SLOT(picsPathChanged()));
connect(settingsCache, SIGNAL(picDownloadChanged()), this, SLOT(picDownloadChanged()));
networkManager = new QNetworkAccessManager(this);
connect(networkManager, SIGNAL(finished(QNetworkReply *)), this, SLOT(picDownloadFinished(QNetworkReply *)));
pictureLoaderThread = new QThread;
pictureLoaderThread->start(QThread::LowPriority);
moveToThread(pictureLoaderThread);
}