/**************************************************************************** ** $Id: qasyncimageio.h,v 1.18.2.2 1999/02/12 17:26:17 warwick Exp $ ** ** *** INTERNAL HEADER FILE *** ** ** This file is NOT a part of the Qt interface! ** ** Definition of asynchronous image/movie loading classes ** ** Created : 970617 ** ** Copyright (C) 1992-1999 Troll Tech AS. All rights reserved. ** ** This file is part of Qt Free Edition, version 1.45. ** ** See the file LICENSE included in the distribution for the usage ** and distribution terms, or http://www.troll.no/free-license.html. ** ** IMPORTANT NOTE: You may NOT copy this file or any part of it into ** your own programs or libraries. ** ** Please see http://www.troll.no/pricing.html for information about ** Qt Professional Edition, which is this same library but with a ** license which allows creation of commercial/proprietary software. ** *****************************************************************************/ #ifndef QASYNCIMAGEIO_H #define QASYNCIMAGEIO_H #ifndef QT_H #include "qimage.h" #endif // QT_H class Q_EXPORT QImageConsumer { public: virtual void changed(const QRect&)=0; virtual void end()=0; virtual void frameDone()=0; virtual void setLooping(int)=0; virtual void setFramePeriod(int)=0; virtual void setSize(int, int)=0; }; class Q_EXPORT QImageFormat { public: virtual ~QImageFormat(); virtual int decode(QImage& img, QImageConsumer* consumer, const uchar* buffer, int length)=0; }; class Q_EXPORT QImageFormatType { public: virtual ~QImageFormatType(); virtual QImageFormat* decoderFor(const uchar* buffer, int length)=0; virtual const char* formatName() const=0; protected: QImageFormatType(); }; struct QImageDecoderPrivate; class Q_EXPORT QImageDecoder { public: QImageDecoder(QImageConsumer* c); ~QImageDecoder(); const QImage& image() { return img; } int decode(const uchar* buffer, int length); static const char* formatName(const uchar* buffer, int length); static QStrList inputFormats(); static void registerDecoderFactory(QImageFormatType*); static void unregisterDecoderFactory(QImageFormatType*); private: QImageFormat* actual_decoder; QImageConsumer* consumer; QImage img; QImageDecoderPrivate *d; }; #endif // QASYNCIMAGEIO_H
Copyright © 1999 Troll Tech | Trademarks | Qt version 1.45
|