/****************************************************************************
**
** 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
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** 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
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
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** $QT_END_LICENSE$
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****************************************************************************/

#ifndef QIIOFHELPERS_P_H
#define QIIOFHELPERS_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists for the convenience
// of other Qt classes.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include <QImageIOPlugin>
#include <private/qcore_mac_p.h>
#include <ImageIO/ImageIO.h>
#include <QVector>

QT_BEGIN_NAMESPACE

/*
Functions to utilize the native ImageIO Framework in OS X and iOS
*/

class QIIOFHelpers
{
public:
    static QImageIOPlugin::Capabilities systemCapabilities(const QString &uti);
    static bool readImage(QImageIOHandler *q_ptr, QImage *out);
    static bool writeImage(QImageIOHandler *q_ptr, const QImage &in, const QString &uti);
};

class QIIOFHelper
{
public:
    QIIOFHelper(QImageIOHandler *q);

    bool readImage(QImage *out);
    bool writeImage(const QImage &in, const QString &uti);
    QVariant imageProperty(QImageIOHandler::ImageOption option);
    void setOption(QImageIOHandler::ImageOption option, const QVariant &value);

protected:
    bool initRead();
    bool getIntProperty(CFStringRef property, int *value);

    QImageIOHandler *q_ptr = nullptr;
    QVector<QVariant> writeOptions;
    QCFType<CGDataProviderRef> cgDataProvider = nullptr;
    QCFType<CGImageSourceRef> cgImageSource = nullptr;
    QCFType<CFDictionaryRef> cfImageDict = nullptr;
};

QT_END_NAMESPACE

#endif
