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384 | /* ============================================================
*
* This file is a part of digiKam project
* https://www.digikam.org
*
* Date : 2008-02-29
* Description : Drag object info containers.
*
* SPDX-FileCopyrightText: 2008-2025 by Gilles Caulier <caulier dot gilles at gmail dot com>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*
* ============================================================ */
#include "ddragobjects.h"
// Qt includes
#include <QDir>
#include <QIODevice>
#include <QByteArray>
#include <QDataStream>
// Local includes
#include "digikam_config.h"
namespace Digikam
{
DItemDrag::DItemDrag(const QList<QUrl>& urls,
const QList<int>& albumIDs,
const QList<qlonglong>& imageIDs)
: QMimeData()
{
// digiKam specific mime data
QByteArray ba;
QDataStream ds(&ba, QIODevice::WriteOnly);
ds << urls;
setData(QLatin1String("digikam/item-urls"), ba);
// inconsistent numbering is legacy
QByteArray ba3;
QDataStream ds3(&ba3, QIODevice::WriteOnly);
ds3 << albumIDs;
setData(QLatin1String("digikam/album-ids"), ba3);
QByteArray ba4;
QDataStream ds4(&ba4, QIODevice::WriteOnly);
ds4 << imageIDs;
setData(QLatin1String("digikam/item-ids"), ba4);
QString txt;
for (const QUrl& url : std::as_const(urls))
{
#ifdef Q_OS_WIN
txt.append(QString::fromUtf8("%1\r\n").arg(QDir::toNativeSeparators(url.toLocalFile())));
#else
txt.append(QString::fromUtf8("%1\n").arg(url.toLocalFile()));
#endif
}
if (urls.size() == 1)
{
#ifdef Q_OS_WIN
txt.chop(2);
#else
txt.chop(1);
#endif
}
setText(txt);
// commonly accessible mime data, for dragging to outside digikam
setUrls(urls);
}
QStringList DItemDrag::mimeTypes()
{
// we do not want to decode text/uri-list with this object,
// we only export this data above for dragging to outside digikam.
return QStringList() << QLatin1String("digikam/item-urls")
<< QLatin1String("digikam/album-ids")
<< QLatin1String("digikam/item-ids");
}
bool DItemDrag::canDecode(const QMimeData* e)
{
const auto mimes = mimeTypes();
for (const QString& mimeType : mimes)<--- Consider using std::all_of or std::none_of algorithm instead of a raw loop.
{
if (!e->hasFormat(mimeType))
{
return false;
}
}
return true;
}
bool DItemDrag::decode(const QMimeData* e,
QList<QUrl>& urls,
QList<int>& albumIDs,
QList<qlonglong>& imageIDs)
{
urls.clear();
albumIDs.clear();
imageIDs.clear();
QByteArray ba = e->data(QLatin1String("digikam/item-urls"));
if (ba.size())
{
QDataStream ds(ba);
if (!ds.atEnd())
{
ds >> urls;
}
}
if (!urls.isEmpty())
{
QByteArray albumarray = e->data(QLatin1String("digikam/album-ids"));
QByteArray imagearray = e->data(QLatin1String("digikam/item-ids"));
if (albumarray.size() && imagearray.size())
{
QDataStream dsAlbums(albumarray);
if (!dsAlbums.atEnd())
{
dsAlbums >> albumIDs;
}
QDataStream dsImages(imagearray);
if (!dsImages.atEnd())
{
dsImages >> imageIDs;
}
return true;
}
}
return false;
}
// ------------------------------------------------------------------------
DAlbumDrag::DAlbumDrag(const QUrl& databaseUrl, int albumid, const QUrl& fileUrl)
: QMimeData()
{
QByteArray ba;
QDataStream ds(&ba, QIODevice::WriteOnly);
ds << (QList<QUrl>() << databaseUrl);
setData(QLatin1String("digikam/digikamalbums"), ba);
QByteArray ba2;
QDataStream ds2(&ba2, QIODevice::WriteOnly);
ds2 << (QList<int>() << albumid);
setData(QLatin1String("digikam/album-ids"), ba2);
// commonly accessible mime data, for dragging to outside digikam
if (!fileUrl.isEmpty())
{
setUrls(QList<QUrl>() << fileUrl);
}
}
QStringList DAlbumDrag::mimeTypes()
{
return QStringList() << QLatin1String("digikam/album-ids")
<< QLatin1String("digikam/digikamalbums");
}
bool DAlbumDrag::canDecode(const QMimeData* e)
{
if (e->hasFormat(QLatin1String("digikam/item-urls")) || e->hasFormat(QLatin1String("digikam/item-ids")))
{
return false;
}
const auto mimes = mimeTypes();
for (const QString& mimeType : mimes)<--- Consider using std::all_of or std::none_of algorithm instead of a raw loop.
{
if (!e->hasFormat(mimeType))
{
return false;
}
}
return true;
}
bool DAlbumDrag::decode(const QMimeData* e, QList<QUrl>& kioUrls, int& albumID)
{
albumID = -1;
QByteArray albumarray = e->data(QLatin1String("digikam/album-ids"));
QByteArray kioarray = e->data(QLatin1String("digikam/digikamalbums"));
if (albumarray.size() && kioarray.size())
{
QDataStream dsAlbums(albumarray);
if (!dsAlbums.atEnd())
{
QList<int> ids;
dsAlbums >> ids;
albumID = ids.first();
}
QDataStream dsKio(kioarray);
if (!dsKio.atEnd())
{
dsKio >> kioUrls;
}
return true;
}
return false;
}
// ------------------------------------------------------------------------
DTagListDrag::DTagListDrag(const QList<int>& tagIDs)
: QMimeData()
{
QByteArray ba;
QDataStream ds(&ba, QIODevice::WriteOnly);
ds << tagIDs;
setData(QLatin1String("digikam/taglist"), ba);
}
QStringList DTagListDrag::mimeTypes()
{
return QStringList() << QLatin1String("digikam/taglist");
}
bool DTagListDrag::canDecode(const QMimeData* e)
{
return e->hasFormat(QLatin1String("digikam/taglist"));
}
bool DTagListDrag::decode(const QMimeData* e, QList<int>& tagIDs)
{
tagIDs.clear();
QByteArray ba = e->data(QLatin1String("digikam/taglist"));
if (ba.size())
{
QDataStream ds(ba);
if (!ds.atEnd())
{
ds >> tagIDs;
}
return true;
}
return false;
}
// ------------------------------------------------------------------------
DCameraItemListDrag::DCameraItemListDrag(const QStringList& cameraItemPaths)
: QMimeData()
{
QByteArray ba;
QDataStream ds(&ba, QIODevice::WriteOnly);
ds << cameraItemPaths;
setData(QLatin1String("digikam/cameraItemlist"), ba);
}
QStringList DCameraItemListDrag::mimeTypes()
{
return QStringList() << QLatin1String("digikam/cameraItemlist");
}
bool DCameraItemListDrag::canDecode(const QMimeData* e)
{
return e->hasFormat(QLatin1String("digikam/cameraItemlist"));
}
bool DCameraItemListDrag::decode(const QMimeData* e, QStringList& cameraItemPaths)
{
cameraItemPaths.clear();
QByteArray ba = e->data(QLatin1String("digikam/cameraItemlist"));
if (ba.size())
{
QDataStream ds(ba);
if (!ds.atEnd())
{
ds >> cameraItemPaths;
}
return true;
}
return false;
}
// ------------------------------------------------------------------------
DCameraDragObject::DCameraDragObject(const CameraType& ctype)
: QMimeData()
{
QByteArray ba;
QDataStream ds(&ba, QIODevice::WriteOnly);
ds << ctype.title();
ds << ctype.model();
ds << ctype.port();
ds << ctype.path();
ds << ctype.startingNumber();
setData(QLatin1String("camera/unknown"), ba);
}
QStringList DCameraDragObject::mimeTypes()
{
return QStringList() << QLatin1String("camera/unknown");
}
bool DCameraDragObject::canDecode(const QMimeData* e)
{
return e->hasFormat(QLatin1String("camera/unknown"));
}
bool DCameraDragObject::decode(const QMimeData* e, CameraType& ctype)
{
QByteArray ba = e->data(QLatin1String("camera/unknown"));
if (ba.size())
{
int startingNumber;
QString title, model, port, path;
QDataStream ds(ba);
ds >> title;
ds >> model;
ds >> port;
ds >> path;
ds >> startingNumber;
ctype = CameraType(title, model, port, path, startingNumber);
return true;
}
else
{
return false;
}
}
} // namespace Digikam
#include "moc_ddragobjects.cpp"
|