File indexing completed on 2024-09-22 05:02:11

 /*
     SPDX-FileCopyrightText: 2022 Fushan Wen <qydwhotmail@gmail.com>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "packageimageprovider.h"
 
 #include <QImageReader>
 #include <QPalette>
 #include <QUrlQuery>
 
 #include <KPackage/PackageLoader>
 
 #include <KSvg/Svg>
 
 #include "finder/packagefinder.h"
 
 class AsyncPackageImageResponseRunnable : public QObject, public QRunnable
 {
     Q_OBJECT
 
 public:
     explicit AsyncPackageImageResponseRunnable(const QString &path, const QSize &requestedSize);
 
     /**
      * Read the image and resize it if the requested size is valid.
      */
     void run() override;
 
 Q_SIGNALS:
     void done(const QImage &image);
 
 private:
     QString m_path;
     QSize m_requestedSize;
 };
 
 class AsyncPackageImageResponse : public QQuickImageResponse
 {
     Q_OBJECT
 
 public:
     explicit AsyncPackageImageResponse(const QString &path, const QSize &requestedSize, QThreadPool *pool);
 
     QQuickTextureFactory *textureFactory() const override;
 
 protected Q_SLOTS:
     void slotHandleDone(const QImage &image);
 
 protected:
     QImage m_image;
 };
 
 AsyncPackageImageResponseRunnable::AsyncPackageImageResponseRunnable(const QString &path, const QSize &requestedSize)
     : m_path(path)
     , m_requestedSize(requestedSize)
 {
 }
 
 void AsyncPackageImageResponseRunnable::run()
 {
     const QUrlQuery urlQuery(QUrl(QStringLiteral("image://package/%1").arg(m_path)));
     const QString dir = urlQuery.queryItemValue(QStringLiteral("dir"));
 
     if (dir.isEmpty()) {
         Q_EMIT done(QImage());
         return;
     }
 
     KPackage::Package package = KPackage::PackageLoader::self()->loadPackage(QStringLiteral("Wallpaper/Images"));
     package.setPath(dir);
 
     if (!package.isValid()) {
         Q_EMIT done(QImage());
         return;
     }
 
     PackageFinder::findPreferredImageInPackage(package, m_requestedSize);
 
     QString path = package.filePath("preferred");
     // 192 is from kcm_colors
     if (urlQuery.queryItemValue(QStringLiteral("darkMode")).toInt() == 1) {
         QString darkPath = package.filePath("preferredDark");
 
         if (!darkPath.isEmpty()) {
             path = darkPath;
         }
     }
 
     QImageReader imageReader(path);
     QImage image;
     if (imageReader.format() == "svg" || imageReader.format() == "svgz") {
         KSvg::Svg svgRender;
         svgRender.setImagePath(path);
         image = svgRender.image(m_requestedSize.isValid() ? svgRender.size().toSize().scaled(m_requestedSize, Qt::KeepAspectRatioByExpanding)
                                                           : svgRender.size().toSize());
     } else if (imageReader.read(&image)) {
         if (m_requestedSize.isValid()) {
             image = image.scaled(m_requestedSize, Qt::KeepAspectRatio, Qt::SmoothTransformation);
         }
     }
 
     Q_EMIT done(image);
 }
 
 AsyncPackageImageResponse::AsyncPackageImageResponse(const QString &path, const QSize &requestedSize, QThreadPool *pool)
 {
     auto runnable = new AsyncPackageImageResponseRunnable(path, requestedSize);
     connect(runnable, &AsyncPackageImageResponseRunnable::done, this, &AsyncPackageImageResponse::slotHandleDone);
     pool->start(runnable);
 }
 
 void AsyncPackageImageResponse::slotHandleDone(const QImage &image)
 {
     m_image = image;
     Q_EMIT finished();
 }
 
 QQuickTextureFactory *AsyncPackageImageResponse::textureFactory() const
 {
     return QQuickTextureFactory::textureFactoryForImage(m_image);
 }
 
 PackageImageProvider::PackageImageProvider()
 {
 }
 
 QQuickImageResponse *PackageImageProvider::requestImageResponse(const QString &id, const QSize &requestedSize)
 {
     AsyncPackageImageResponse *response = new AsyncPackageImageResponse(id, requestedSize, &m_pool);
 
     return response;
 }
 
 #include "packageimageprovider.moc"