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81 lines
2.0 KiB
81 lines
2.0 KiB
/* ============================================================
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*
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* This file is a part of digiKam project
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* http://www.digikam.org
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*
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* Date : 2005-06-14
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* Description : A JPEG IO file for DImg framework
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*
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* Copyright (C) 2005 by Renchi Raju <renchi@pooh.tam.uiuc.edu>, Gilles Caulier
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* Copyright (C) 2005-2007 by Gilles Caulier <caulier dot gilles at gmail dot com>
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*
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* This program is free software; you can redistribute it
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* and/or modify it under the terms of the GNU General
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* Public License as published by the Free Software Foundation;
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* either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* ============================================================ */
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#ifndef JPEGLOADER_H
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#define JPEGLOADER_H
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// C ansi includes.
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extern "C"
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{
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#include <setjmp.h>
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#include <jpeglib.h>
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}
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// TQt includes.
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#include <tqstring.h>
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// Local includes.
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#include "dimgloader.h"
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#include "digikam_export.h"
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namespace Digikam
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{
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class DImg;
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class DIGIKAM_EXPORT JPEGLoader : public DImgLoader
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{
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public:
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JPEGLoader(DImg* image);
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bool load(const TQString& filePath, DImgLoaderObserver *observer);
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bool save(const TQString& filePath, DImgLoaderObserver *observer);
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virtual bool hasAlpha() const { return false; }
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virtual bool sixteenBit() const { return false; }
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virtual bool isReadOnly() const { return false; };
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private:
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// To manage Errors/Warnings handling provide by libjpeg
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struct dimg_jpeg_error_mgr : public jpeg_error_mgr
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{
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jmp_buf setjmp_buffer;
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};
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static void dimg_jpeg_error_exit(j_common_ptr cinfo);
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static void dimg_jpeg_emit_message(j_common_ptr cinfo, int msg_level);
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static void dimg_jpeg_output_message(j_common_ptr cinfo);
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};
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} // NameSpace Digikam
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#endif /* JPEGLOADER_H */
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