plasma-workspace/xembed-sni-proxy/snidbus.cpp

/*
 * SNI DBus Serialisers
 * Copyright 2015  David Edmundson <davidedmundson@kde.org>
 * Copyright 2009 by Marco Martin <notmart@gmail.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License or (at your option) version 3 or any later version
 * accepted by the membership of KDE e.V. (or its successor approved
 * by the membership of KDE e.V.), which shall act as a proxy
 * defined in Section 14 of version 3 of the license.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#include "snidbus.h"

#include <QSysInfo>
#include <QtEndian>

//mostly copied from KStatusNotiferItemDbus.cpps from knotification

KDbusImageStruct::KDbusImageStruct()
{
}

KDbusImageStruct::KDbusImageStruct(const QImage &image)
{
    width = image.size().width();
    height = image.size().height();
    if (image.format() == QImage::Format_ARGB32) {
        data = QByteArray((char *)image.bits(), image.byteCount());
    } else {
        QImage image32 = image.convertToFormat(QImage::Format_ARGB32);
        data = QByteArray((char *)image32.bits(), image32.byteCount());
    }

    //swap to network byte order if we are little endian
    if (QSysInfo::ByteOrder == QSysInfo::LittleEndian) {
        quint32 *uintBuf = (quint32 *) data.data();
        for (uint i = 0; i < data.size() / sizeof(quint32); ++i) {
            *uintBuf = qToBigEndian(*uintBuf);
            ++uintBuf;
        }
    }
}

// Marshall the ImageStruct data into a D-BUS argument
const QDBusArgument &operator<<(QDBusArgument &argument, const KDbusImageStruct &icon)
{
    argument.beginStructure();
    argument << icon.width;
    argument << icon.height;
    argument << icon.data;
    argument.endStructure();
    return argument;
}

// Retrieve the ImageStruct data from the D-BUS argument
const QDBusArgument &operator>>(const QDBusArgument &argument, KDbusImageStruct &icon)
{
    qint32 width;
    qint32 height;
    QByteArray data;

    argument.beginStructure();
    argument >> width;
    argument >> height;
    argument >> data;
    argument.endStructure();

    icon.width = width;
    icon.height = height;
    icon.data = data;

    return argument;
}

// Marshall the ImageVector data into a D-BUS argument
const QDBusArgument &operator<<(QDBusArgument &argument, const KDbusImageVector &iconVector)
{
    argument.beginArray(qMetaTypeId<KDbusImageStruct>());
    for (int i = 0; i < iconVector.size(); ++i) {
        argument << iconVector[i];
    }
    argument.endArray();
    return argument;
}

// Retrieve the ImageVector data from the D-BUS argument
const QDBusArgument &operator>>(const QDBusArgument &argument, KDbusImageVector &iconVector)
{
    argument.beginArray();
    iconVector.clear();

    while (!argument.atEnd()) {
        KDbusImageStruct element;
        argument >> element;
        iconVector.append(element);
    }

    argument.endArray();

    return argument;
}

// Marshall the ToolTipStruct data into a D-BUS argument
const QDBusArgument &operator<<(QDBusArgument &argument, const KDbusToolTipStruct &toolTip)
{
    argument.beginStructure();
    argument << toolTip.icon;
    argument << toolTip.image;
    argument << toolTip.title;
    argument << toolTip.subTitle;
    argument.endStructure();
    return argument;
}

// Retrieve the ToolTipStruct data from the D-BUS argument
const QDBusArgument &operator>>(const QDBusArgument &argument, KDbusToolTipStruct &toolTip)
{
    QString icon;
    KDbusImageVector image;
    QString title;
    QString subTitle;

    argument.beginStructure();
    argument >> icon;
    argument >> image;
    argument >> title;
    argument >> subTitle;
    argument.endStructure();

    toolTip.icon = icon;
    toolTip.image = image;
    toolTip.title = title;
    toolTip.subTitle = subTitle;

    return argument;
}