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/* ============================================================
*
* This file is a part of digiKam project
* http://www.digikam.org
*
* Date : 2005-11-01
* Description : a PNG image loader for DImg framework.
*
* Copyright (C) 2005-2009 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 PNGLOADER_H
#define PNGLOADER_H
extern "C"
{
#include <stdarg.h>
#include <png.h>
}
// Local includes.
#include "dimgloader.h"
#include "digikam_export.h"
namespace Digikam
{
class DImg;
class DIGIKAM_EXPORT PNGLoader : public DImgLoader
{
public:
PNGLoader(DImg* image);
bool load(const TQString& filePath, DImgLoaderObserver *observer);
bool save(const TQString& filePath, DImgLoaderObserver *observer);
virtual bool hasAlpha() const;
virtual bool sixteenBit() const;
virtual bool isReadOnly() const { return false; };
private:
void writeRawProfile(png_struct *ping, png_info *ping_info, char *profile_type,
char *profile_data, png_uint_32 length);
size_t concatenateString(char *destination, const char *source, const size_t length);
size_t copyString(char *destination, const char *source, const size_t length);
long formatString(char *string, const size_t length, const char *format,...);
long formatStringList(char *string, const size_t length, const char *format, va_list operands);
private:
bool m_sixteenBit;
bool m_hasAlpha;
};
} // NameSpace Digikam
#endif /* PNGLOADER_H */
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