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#include "qml/asyncimageprovider.h"
#include "library/coverartcache.h"
namespace {
const QString kCoverArtPrefix = QStringLiteral("coverart/");
}
namespace mixxx {
namespace qml {
AsyncImageResponse::AsyncImageResponse(const QString& id, const QSize& requestedSize)
: m_id(id), m_requestedSize(requestedSize) {
setAutoDelete(false);
}
QQuickTextureFactory* AsyncImageResponse::textureFactory() const {
return QQuickTextureFactory::textureFactoryForImage(m_image);
}
void AsyncImageResponse::run() {
if (m_id.startsWith(kCoverArtPrefix)) {
QString trackLocation = AsyncImageProvider::coverArtUrlIdToTrackLocation(m_id);
// TODO: This code does not allow to override embedded cover art with
// a custom image, which is possible in Mixxx. We need to access the
// actual CoverInfo of the track instead of constructing a default
// instance on the fly.
//
// Unfortunately, TrackCollectionManager::getTrackByRef will not work
// when called from another thread (like this one). We need a solution
// for that.
CoverInfo coverInfo(CoverInfoRelative(), trackLocation);
coverInfo.type = CoverInfoRelative::METADATA;
CoverInfo::LoadedImage loadedImage = coverInfo.loadImage();
if (loadedImage.result != CoverInfo::LoadedImage::Result::Ok) {
coverInfo.type = CoverInfoRelative::FILE;
loadedImage = coverInfo.loadImage();
}
m_image = loadedImage.image;
} else {
qWarning() << "ImageProvider: Unknown ID " << m_id;
}
if (!m_image.isNull() && m_requestedSize.isValid()) {
m_image = m_image.scaled(m_requestedSize);
}
emit finished();
}
QQuickImageResponse* AsyncImageProvider::requestImageResponse(
const QString& id, const QSize& requestedSize) {
AsyncImageResponse* response = new AsyncImageResponse(id, requestedSize);
pool.start(response);
return response;
}
// static
const QString AsyncImageProvider::kProviderName = QStringLiteral("mixxx");
// static
QUrl AsyncImageProvider::trackLocationToCoverArtUrl(const QString& trackLocation) {
QUrl url("image://" + kProviderName + "/" + kCoverArtPrefix);
return url.resolved(
QString::fromLatin1(trackLocation.toUtf8().toBase64(
QByteArray::Base64UrlEncoding)));
}
//static
QString AsyncImageProvider::coverArtUrlIdToTrackLocation(const QString& coverArtUrlId) {
return QString::fromUtf8(QByteArray::fromBase64(
coverArtUrlId.mid(kCoverArtPrefix.size()).toLatin1(), QByteArray::Base64UrlEncoding));
}
} // namespace qml
} // namespace mixxx
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