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/* ============================================================
*
* This file is a part of digiKam project
* http://www.digikam.org
*
* Date : 2005-06-14
* Description : A JPEG IO file for DImg framework
*
* Copyright (C) 2005 by Renchi Raju <renchi@pooh.tam.uiuc.edu>, Gilles Caulier
* Copyright (C) 2005-2007 by Gilles Caulier <caulier dot gilles at gmail dot 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, or (at your option)
* any later version.
*
* 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.
*
* ============================================================ */
#ifndef JPEGLOADER_H
#define JPEGLOADER_H
// C ansi includes.
extern "C"
{
#include <setjmp.h>
#include <jpeglib.h>
}
// Qt includes.
#include <qstring.h>
// Local includes.
#include "dimgloader.h"
#include "digikam_export.h"
namespace Digikam
{
class DImg;
class DIGIKAM_EXPORT JPEGLoader : public DImgLoader
{
public:
JPEGLoader(DImg* image);
bool load(const QString& filePath, DImgLoaderObserver *observer);
bool save(const QString& filePath, DImgLoaderObserver *observer);
virtual bool hasAlpha() const { return false; }
virtual bool sixteenBit() const { return false; }
virtual bool isReadOnly() const { return false; };
private:
// To manage Errors/Warnings handling provide by libjpeg
struct dimg_jpeg_error_mgr : public jpeg_error_mgr
{
jmp_buf setjmp_buffer;
};
static void dimg_jpeg_error_exit(j_common_ptr cinfo);
static void dimg_jpeg_emit_message(j_common_ptr cinfo, int msg_level);
static void dimg_jpeg_output_message(j_common_ptr cinfo);
};
} // NameSpace Digikam
#endif /* JPEGLOADER_H */
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