// this code is copied from Qt, with code added to actually call consumer
// methods that inform about the progress of loading

/****************************************************************************
** 
**
** Implementation of PNG QImage IOHandler
**
** Created : 970521
**
** Copyright (C) 1992-2003 Trolltech AS.  All rights reserved.
**
** This file is part of the kernel module of the Qt GUI Toolkit.
**
** This file may be distributed under the terms of the Q Public License
** as defined by Trolltech AS of Norway and appearing in the file
** LICENSE.QPL included in the packaging of this file.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
** licenses may use this file in accordance with the Qt Commercial License
** Agreement provided with the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
**   information about Qt Commercial License Agreements.
** See http://www.trolltech.com/qpl/ for QPL licensing information.
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
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**********************************************************************/

#ifndef gvpngformattype_h
#define gvpngformattype_h

#include <qasyncimageio.h>

namespace Gwenview {

/**
 * @internal
 *
 * An incremental loader factory for PNG's.
 */
class PNGFormatType : public QImageFormatType {
public:
	QImageFormat* decoderFor(const uchar* buffer, int length);
	const char* formatName() const;
};

} // namespace

// -----------------------------------------------------------------------------

#endif // gvpngformattype_h