kis_gif_import.cpp

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/*
 *  SPDX-FileCopyrightText: 2018 Boudewijn Rempt <boud@valdyas.org>
 *
 *  SPDX-License-Identifier: GPL-2.0-or-later
 */
 
#include "kis_gif_import.h"
 
#include <QCheckBox>
#include <QBuffer>
#include <QSlider>
#include <QApplication>
 
#include <kpluginfactory.h>
 
#include <KoColorSpace.h>
#include <KoColorSpaceRegistry.h>
 
#include <kis_transaction.h>
#include <kis_paint_device.h>
#include <kis_image.h>
#include <kis_paint_layer.h>
#include <kis_node.h>
#include <kis_group_layer.h>
#include <KisDocument.h>
#include <KisImportExportAdditionalChecks.h>
 
#include "qgiflibhandler.h"
 
K_PLUGIN_FACTORY_WITH_JSON(KisGIFImportFactory, "krita_gif_import.json", registerPlugin<KisGIFImport>();)
 
KisGIFImport::KisGIFImport(QObject *parent, const QVariantList &)
    : KisImportExportFilter(parent)
{
}
 
KisGIFImport::~KisGIFImport()
{
}
 
KisImportExportErrorCode KisGIFImport::convert(KisDocument *document, QIODevice *io,  KisPropertiesConfigurationSP configuration)
{
    Q_UNUSED(configuration);
 
    QImage img;
    bool result = false;
    QGIFLibHandler handler;
 
 
    handler.setDevice(io);
 
    if (!io->isReadable()) {
        return ImportExportCodes::NoAccessToRead;
    }
 
    if (handler.canRead()) {
        result = handler.read(&img);
    } else {
        // handler.canRead() checks for the flag in the file; if it can't read it, maybe the format is incorrect
        return ImportExportCodes::FileFormatIncorrect;
    }
 
    if (result == false) {
        return ImportExportCodes::FileFormatIncorrect;
    }
 
    const KoColorSpace *colorSpace = KoColorSpaceRegistry::instance()->rgb8();
    KisImageSP image = new KisImage(document->createUndoStore(), img.width(), img.height(), colorSpace, "imported from gif");
 
    KisPaintLayerSP layer = new KisPaintLayer(image, image->nextLayerName(), 255);
    layer->paintDevice()->convertFromQImage(img, 0, 0, 0);
    image->addNode(layer.data(), image->rootLayer().data());
 
    document->setCurrentImage(image);
    return ImportExportCodes::OK;
 
}
 
#include "kis_gif_import.moc"