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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the MacJp2 plugin in the Qt ImageFormats module.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qmacjp2handler.h"
#include "qiiofhelpers_p.h"
#include <QVariant>
QT_BEGIN_NAMESPACE
class QMacJp2HandlerPrivate
{
Q_DECLARE_PUBLIC(QMacJp2Handler)
Q_DISABLE_COPY(QMacJp2HandlerPrivate)
public:
QMacJp2HandlerPrivate(QMacJp2Handler *q_ptr)
: writeQuality(-1), q_ptr(q_ptr)
{}
int writeQuality;
QMacJp2Handler *q_ptr;
};
QMacJp2Handler::QMacJp2Handler()
: d_ptr(new QMacJp2HandlerPrivate(this))
{
}
QMacJp2Handler::~QMacJp2Handler()
{
}
bool QMacJp2Handler::canRead(QIODevice *iod)
{
bool bCanRead = false;
char buf[12];
if (iod && iod->peek(buf, 12) == 12)
bCanRead = !qstrncmp(buf, "\000\000\000\fjP \r\n\207\n", 12);
return bCanRead;
}
bool QMacJp2Handler::canRead() const
{
if (canRead(device())) {
setFormat("jp2");
return true;
}
return false;
}
bool QMacJp2Handler::read(QImage *image)
{
return QIIOFHelpers::readImage(this, image);
}
bool QMacJp2Handler::write(const QImage &image)
{
return QIIOFHelpers::writeImage(this, image, QStringLiteral("public.jpeg-2000"));
}
QVariant QMacJp2Handler::option(ImageOption option) const
{
Q_D(const QMacJp2Handler);
if (option == Quality)
return QVariant(d->writeQuality);
return QVariant();
}
void QMacJp2Handler::setOption(ImageOption option, const QVariant &value)
{
Q_D(QMacJp2Handler);
if (option == Quality) {
bool ok;
const int quality = value.toInt(&ok);
if (ok)
d->writeQuality = quality;
}
}
bool QMacJp2Handler::supportsOption(ImageOption option) const
{
return (option == Quality);
}
QT_END_NAMESPACE
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