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    41 

    42 #ifndef QIMAGEREADER_H

    43 #define QIMAGEREADER_H

    44 

    45 #include <QtCore/qbytearray.h>

    46 #include <QtGui/qimage.h>

    47 #include <QtGui/qimageiohandler.h>

    48 

    49 QT_BEGIN_HEADER

    50 

    51 QT_BEGIN_NAMESPACE

    52 

    53 QT_MODULE(Gui)

    54 

    55 class QColor;

    56 class QIODevice;

    57 class QRect;

    58 class QSize;

    59 class QStringList;

    60 

    61 class QImageReaderPrivate;

    62 class Q_GUI_EXPORT QImageReader

    63 {

    64 public:

    65     enum ImageReaderError {

    66         UnknownError,

    67         FileNotFoundError,

    68         DeviceError,

    69         UnsupportedFormatError,

    70         InvalidDataError

    71     };

    72 

    73     QImageReader();

    74     explicit QImageReader(QIODevice *device, const QByteArray &format = QByteArray());

    75     explicit QImageReader(const QString &fileName, const QByteArray &format = QByteArray());

    76     ~QImageReader();

    77 

    78     void setFormat(const QByteArray &format);

    79     QByteArray format() const;

    80 

    81     void setAutoDetectImageFormat(bool enabled);

    82     bool autoDetectImageFormat() const;

    83 

    84     void setDecideFormatFromContent(bool ignored);

    85     bool decideFormatFromContent() const;

    86 

    87     void setDevice(QIODevice *device);

    88     QIODevice *device() const;

    89 

    90     void setFileName(const QString &fileName);

    91     QString fileName() const;

    92 

    93     QSize size() const;

    94 

    95     QImage::Format imageFormat() const;

    96 

    97     QStringList textKeys() const;

    98     QString text(const QString &key) const;

    99 

   100     void setClipRect(const QRect &rect);

   101     QRect clipRect() const;

   102 

   103     void setScaledSize(const QSize &size);

   104     QSize scaledSize() const;

   105 

   106     void setQuality(int quality);

   107     int quality() const;

   108 

   109     void setScaledClipRect(const QRect &rect);

   110     QRect scaledClipRect() const;

   111 

   112     void setBackgroundColor(const QColor &color);

   113     QColor backgroundColor() const;

   114 

   115     bool supportsAnimation() const;

   116 

   117     bool canRead() const;

   118     QImage read();

   119     bool read(QImage *image);

   120 

   121     bool jumpToNextImage();

   122     bool jumpToImage(int imageNumber);

   123     int loopCount() const;

   124     int imageCount() const;

   125     int nextImageDelay() const;

   126     int currentImageNumber() const;

   127     QRect currentImageRect() const;

   128 

   129     ImageReaderError error() const;

   130     QString errorString() const;

   131 

   132     bool supportsOption(QImageIOHandler::ImageOption option) const;

   133 

   134     static QByteArray imageFormat(const QString &fileName);

   135     static QByteArray imageFormat(QIODevice *device);

   136     static QList<QByteArray> supportedImageFormats();

   137 

   138 private:

   139     Q_DISABLE_COPY(QImageReader)

   140     QImageReaderPrivate *d;

   141 };

   142 

   143 QT_END_NAMESPACE

   144 

   145 QT_END_HEADER

   146 

   147 #endif // QIMAGEREADER_H