filemanager/helper/thumbnailer.cpp
2021-03-29 16:51:34 +08:00

37 lines
1 KiB
C++

#include "thumbnailer.h"
#include <KIO/PreviewJob>
#include <QDebug>
#include <QImage>
QQuickImageResponse *Thumbnailer::requestImageResponse(const QString &id, const QSize &requestedSize)
{
AsyncImageResponse *response = new AsyncImageResponse(id, requestedSize);
return response;
}
AsyncImageResponse::AsyncImageResponse(const QString &id, const QSize &requestedSize)
: m_id(id)
, m_requestedSize(requestedSize)
{
QStringList plugins = KIO::PreviewJob::defaultPlugins();
auto job = new KIO::PreviewJob(KFileItemList() << KFileItem(QUrl::fromUserInput(id)), requestedSize, &plugins);
connect(job, &KIO::PreviewJob::gotPreview, [this](KFileItem, QPixmap pixmap) {
m_image = pixmap.toImage();
emit this->finished();
});
connect(job, &KIO::PreviewJob::failed, [this](KFileItem) {
emit this->cancel();
emit this->finished();
});
job->start();
}
QQuickTextureFactory *AsyncImageResponse::textureFactory() const
{
return QQuickTextureFactory::textureFactoryForImage(m_image);
}