qimagereader.h
上传用户:detong
上传日期:2022-06-22
资源大小:20675k
文件大小:4k
- /****************************************************************************
- **
- ** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
- ** Contact: Qt Software Information (qt-info@nokia.com)
- **
- ** This file is part of the QtGui module of the Qt Toolkit.
- **
- ** Commercial Usage
- ** Licensees holding valid Qt Commercial licenses may use this file in
- ** accordance with the Qt Commercial License Agreement provided with the
- ** Software or, alternatively, in accordance with the terms contained in
- ** a written agreement between you and Nokia.
- **
- **
- ** GNU General Public License Usage
- ** Alternatively, 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 file LICENSE.GPL included in
- ** the packaging of this file. Please review the following information
- ** to ensure GNU General Public Licensing requirements will be met:
- ** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
- ** http://www.gnu.org/copyleft/gpl.html. In addition, as a special
- ** exception, Nokia gives you certain additional rights. These rights
- ** are described in the Nokia Qt GPL Exception version 1.3, included in
- ** the file GPL_EXCEPTION.txt in this package.
- **
- ** Qt for Windows(R) Licensees
- ** As a special exception, Nokia, as the sole copyright holder for Qt
- ** Designer, grants users of the Qt/Eclipse Integration plug-in the
- ** right for the Qt/Eclipse Integration to link to functionality
- ** provided by Qt Designer and its related libraries.
- **
- ** If you are unsure which license is appropriate for your use, please
- ** contact the sales department at qt-sales@nokia.com.
- **
- ****************************************************************************/
- #ifndef QIMAGEREADER_H
- #define QIMAGEREADER_H
- #include <QtCore/qbytearray.h>
- #include <QtGui/qimageiohandler.h>
- QT_BEGIN_HEADER
- QT_BEGIN_NAMESPACE
- QT_MODULE(Gui)
- class QColor;
- class QIODevice;
- class QImage;
- class QRect;
- class QSize;
- class QStringList;
- class QImageReaderPrivate;
- class Q_GUI_EXPORT QImageReader
- {
- public:
- enum ImageReaderError {
- UnknownError,
- FileNotFoundError,
- DeviceError,
- UnsupportedFormatError,
- InvalidDataError
- };
- QImageReader();
- explicit QImageReader(QIODevice *device, const QByteArray &format = QByteArray());
- explicit QImageReader(const QString &fileName, const QByteArray &format = QByteArray());
- ~QImageReader();
- void setFormat(const QByteArray &format);
- QByteArray format() const;
- void setDevice(QIODevice *device);
- QIODevice *device() const;
- void setFileName(const QString &fileName);
- QString fileName() const;
- QSize size() const;
- QStringList textKeys() const;
- QString text(const QString &key) const;
- void setClipRect(const QRect &rect);
- QRect clipRect() const;
- void setScaledSize(const QSize &size);
- QSize scaledSize() const;
- void setQuality(int quality);
- int quality() const;
- void setScaledClipRect(const QRect &rect);
- QRect scaledClipRect() const;
- void setBackgroundColor(const QColor &color);
- QColor backgroundColor() const;
- bool supportsAnimation() const;
- bool canRead() const;
- QImage read();
- bool read(QImage *image);
- bool jumpToNextImage();
- bool jumpToImage(int imageNumber);
- int loopCount() const;
- int imageCount() const;
- int nextImageDelay() const;
- int currentImageNumber() const;
- QRect currentImageRect() const;
- ImageReaderError error() const;
- QString errorString() const;
- bool supportsOption(QImageIOHandler::ImageOption option) const;
- static QByteArray imageFormat(const QString &fileName);
- static QByteArray imageFormat(QIODevice *device);
- static QList<QByteArray> supportedImageFormats();
- private:
- Q_DISABLE_COPY(QImageReader)
- QImageReaderPrivate *d;
- };
- QT_END_NAMESPACE
- QT_END_HEADER
- #endif // QIMAGEREADER_H