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112 lines
3.5 KiB
112 lines
3.5 KiB
14 years ago
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/****************************************************************************
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**
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** Definition of asynchronous image/movie loading classes
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**
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** Created : 970617
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**
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** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
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**
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** This file is part of the kernel module of the Qt GUI Toolkit.
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**
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** This file may be used under the terms of the GNU General
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** Public License versions 2.0 or 3.0 as published by the Free
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** Software Foundation and appearing in the files LICENSE.GPL2
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** and LICENSE.GPL3 included in the packaging of this file.
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** Alternatively you may (at your option) use any later version
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** of the GNU General Public License if such license has been
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** publicly approved by Trolltech ASA (or its successors, if any)
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** and the KDE Free Qt Foundation.
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**
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** Please review the following information to ensure GNU General
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** Public Licensing requirements will be met:
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** http://trolltech.com/products/qt/licenses/licensing/opensource/.
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** If you are unsure which license is appropriate for your use, please
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** review the following information:
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** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
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** or contact the sales department at sales@trolltech.com.
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**
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** This file may be used under the terms of the Q Public License as
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** defined by Trolltech ASA and appearing in the file LICENSE.QPL
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** included in the packaging of this file. Licensees holding valid Qt
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** Commercial licenses may use this file in accordance with the Qt
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** Commercial License Agreement provided with the Software.
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**
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** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
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** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
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** herein.
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**
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**********************************************************************/
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#ifndef QASYNCIMAGEIO_H
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#define QASYNCIMAGEIO_H
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#ifndef QT_H
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#include "qimage.h"
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#endif // QT_H
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#ifndef QT_NO_ASYNC_IMAGE_IO
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#if __GNUC__ - 0 > 3
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#pragma GCC system_header
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#endif
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class Q_EXPORT QImageConsumer {
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public:
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virtual void end()=0;
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// Change transfer type 1.
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virtual void changed( const QRect& ) = 0;
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virtual void frameDone() = 0;
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// Change transfer type 2.
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virtual void frameDone( const QPoint&, const QRect& ) = 0;
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virtual void setLooping( int ) = 0;
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virtual void setFramePeriod( int ) = 0;
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virtual void setSize( int, int ) = 0;
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};
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class Q_EXPORT QImageFormat {
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public:
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virtual ~QImageFormat();
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virtual int decode( QImage& img, QImageConsumer* consumer,
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const uchar* buffer, int length ) = 0;
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};
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class Q_EXPORT QImageFormatType {
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public:
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virtual ~QImageFormatType();
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virtual QImageFormat* decoderFor( const uchar* buffer, int length ) = 0;
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virtual const char* formatName() const = 0;
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protected:
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QImageFormatType();
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};
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class QImageDecoderPrivate;
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class Q_EXPORT QImageDecoder {
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public:
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QImageDecoder( QImageConsumer* c );
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~QImageDecoder();
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const QImage& image() { return img; }
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int decode( const uchar* buffer, int length );
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static const char* formatName( const uchar* buffer, int length );
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static QImageFormatType* format( const char* name ); // direct use - no decode()
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static QStrList inputFormats();
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static void registerDecoderFactory( QImageFormatType* );
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static void unregisterDecoderFactory( QImageFormatType* );
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private:
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QImageFormat* actual_decoder;
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QImageConsumer* consumer;
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QImage img;
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QImageDecoderPrivate *d;
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};
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#endif // QT_NO_ASYNC_IMAGE_IO
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#endif // QASYNCIMAGEIO_H
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