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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>tqasyncimageio.h</h1>
<p>This is the verbatim text of the tqasyncimageio.h include file. It is provided only for illustration; the copyright remains with Trolltech.
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/****************************************************************************
** $Id: qt/tqasyncimageio.h 3.3.8 edited Jan 11 14:38 $
**
** Definition of asynchronous image/movie loading classes
**
** Created : 970617
**
** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
**
** This file is part of the kernel module of the TQt GUI Toolkit.
**
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** License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Alternatively you may (at your option) use any
** later version of the GNU General Public License if such license has
** been publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free TQt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
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** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
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**********************************************************************/
#ifndef TQASYNCIMAGEIO_H
#define TQASYNCIMAGEIO_H
#ifndef QT_H
#include "tqimage.h"
#endif // QT_H
#ifndef TQT_NO_ASYNC_IMAGE_IO
#if __GNUC__ - 0 > 3
#pragma GCC system_header
#endif
class TQ_EXPORT TQImageConsumer {
public:
virtual void end()=0;
// Change transfer type 1.
virtual void changed( const TQRect& ) = 0;
virtual void frameDone() = 0;
// Change transfer type 2.
virtual void frameDone( const TQPoint&, const TQRect& ) = 0;
virtual void setLooping( int ) = 0;
virtual void setFramePeriod( int ) = 0;
virtual void setSize( int, int ) = 0;
};
class TQ_EXPORT TQImageFormat {
public:
virtual ~TQImageFormat();
virtual int decode( TQImage& img, TQImageConsumer* consumer,
const uchar* buffer, int length ) = 0;
};
class TQ_EXPORT TQImageFormatType {
public:
virtual ~TQImageFormatType();
virtual TQImageFormat* decoderFor( const uchar* buffer, int length ) = 0;
virtual const char* formatName() const = 0;
protected:
TQImageFormatType();
};
class TQImageDecoderPrivate;
class TQ_EXPORT TQImageDecoder {
public:
TQImageDecoder( TQImageConsumer* c );
~TQImageDecoder();
const TQImage& image() { return img; }
int decode( const uchar* buffer, int length );
static const char* formatName( const uchar* buffer, int length );
static TQImageFormatType* format( const char* name ); // direct use - no decode()
static TQStrList inputFormats();
static void registerDecoderFactory( TQImageFormatType* );
static void unregisterDecoderFactory( TQImageFormatType* );
private:
TQImageFormat* actual_decoder;
TQImageConsumer* consumer;
TQImage img;
TQImageDecoderPrivate *d;
};
#endif // TQT_NO_ASYNC_IMAGE_IO
#endif // TQASYNCIMAGEIO_H
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