File indexing completed on 2024-04-28 04:58:03

 /*  This file is part of the Calligra project.
     SPDX-FileCopyrightText: 2015 Friedrich W. H. Kossebau <kossebau@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "kritacreator.h"
 
 #include <KPluginFactory>
 #include <KZip>
 
 #include <QIODevice>
 #include <QImage>
 #include <memory>
 
 K_PLUGIN_CLASS_WITH_JSON(KritaCreator, "kraorathumbnail.json")
 
 KritaCreator::KritaCreator(QObject *parent, const QVariantList &args)
     : KIO::ThumbnailCreator(parent, args)
 {
 }
 
 KritaCreator::~KritaCreator()
 {
 }
 
 KIO::ThumbnailResult KritaCreator::create(const KIO::ThumbnailRequest &request)
 {
     // for now just rely on the rendered data inside the file,
     // do not load Krita code for rendering ourselves, as that currently (2.9)
     // means loading all plugins, resources etc.
     KZip zip(request.url().toLocalFile());
     if (!zip.open(QIODevice::ReadOnly)) {
         return KIO::ThumbnailResult::fail();
     }
 
     // first check if normal thumbnail is good enough
     // ORA thumbnail?
     const KArchiveFile *entry = zip.directory()->file(QLatin1String("Thumbnails/thumbnail.png"));
     if (!entry) {
         // KRA thumbnail
         entry = zip.directory()->file(QLatin1String("preview.png"));
     }
 
     if (!entry) {
         return KIO::ThumbnailResult::fail();
     }
 
     std::unique_ptr<QIODevice> fileDevice{entry->createDevice()};
     QImage image;
     bool thumbLoaded = image.load(fileDevice.get(), "PNG");
     // The requested size is a boundingbox, so meeting one size is sufficient
     if (thumbLoaded && ((image.width() >= request.targetSize().width()) || (image.height() >= request.targetSize().height()))) {
         return KIO::ThumbnailResult::pass(image);
     }
 
     entry = zip.directory()->file(QLatin1String("mergedimage.png"));
     if (entry) {
         QImage thumbnail;
         fileDevice.reset(entry->createDevice());
         thumbLoaded = thumbnail.load(fileDevice.get(), "PNG");
         if (thumbLoaded) {
             return KIO::ThumbnailResult::pass(thumbnail);
         }
     }
 
     return KIO::ThumbnailResult::fail();
 }
 
 #include "kritacreator.moc"
 #include "moc_kritacreator.cpp"