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Diffstat (limited to 'src/kernel/qasyncimageio.h')
-rw-r--r-- | src/kernel/qasyncimageio.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/src/kernel/qasyncimageio.h b/src/kernel/qasyncimageio.h new file mode 100644 index 000000000..ba33177a8 --- /dev/null +++ b/src/kernel/qasyncimageio.h @@ -0,0 +1,111 @@ +/**************************************************************************** +** +** Definition of asynchronous image/movie loading classes +** +** Created : 970617 +** +** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved. +** +** This file is part of the kernel module of the TQt GUI Toolkit. +** +** This file may be used under the terms of the GNU General +** Public License versions 2.0 or 3.0 as published by the Free +** Software Foundation and appearing in the files LICENSE.GPL2 +** and LICENSE.GPL3 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 retquirements will be met: +** http://trolltech.com/products/qt/licenses/licensing/opensource/. +** If you are unsure which license is appropriate for your use, please +** review the following information: +** http://trolltech.com/products/qt/licenses/licensing/licensingoverview +** or contact the sales department at sales@trolltech.com. +** +** This file may be used under the terms of the Q Public License as +** defined by Trolltech ASA and appearing in the file LICENSE.TQPL +** included in the packaging of this file. Licensees holding valid TQt +** Commercial licenses may use this file in accordance with the TQt +** Commercial License Agreement provided with the Software. +** +** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, +** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted +** herein. +** +**********************************************************************/ + +#ifndef TQASYNCIMAGEIO_H +#define TQASYNCIMAGEIO_H + +#ifndef QT_H +#include "qimage.h" +#endif // QT_H + +#ifndef QT_NO_ASYNC_IMAGE_IO + +#if __GNUC__ - 0 > 3 +#pragma GCC system_header +#endif + +class Q_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 Q_EXPORT TQImageFormat { +public: + virtual ~TQImageFormat(); + virtual int decode( TQImage& img, TQImageConsumer* consumer, + const uchar* buffer, int length ) = 0; +}; + +class Q_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 Q_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 // QT_NO_ASYNC_IMAGE_IO + +#endif // TQASYNCIMAGEIO_H |