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Sourcecode: qt4-x11 version File versions  Download package

QList< QByteArray > QImageReader::supportedImageFormats (  )  [static]

Returns the list of image formats supported by QImageReader.

By default, Qt can read the following formats:

Format Description BMP Windows Bitmap GIF Graphic Interchange Format (optional) JPG Joint Photographic Experts Group JPEG Joint Photographic Experts Group MNG Multiple-image Network Graphics PNG Portable Network Graphics PBM Portable Bitmap PGM Portable Graymap PPM Portable Pixmap TIFF Tagged Image File Format XBM X11 Bitmap XPM X11 Pixmap

To configure Qt with GIF support, pass -qt-gif to the configure script or check the appropriate option in the graphical installer.

See also:
setFormat(), QImageWriter::supportedImageFormats(), QImageIOPlugin

Definition at line 1272 of file qimagereader.cpp.

References QList< T >::at(), QImageIOPlugin::capabilities(), QList< T >::count(), and QString::toLatin1().

Referenced by Q3ImageDrag::canDecode(), Q3ImageDrag::decode(), and QMovie::supportedFormats().

    QSet<QByteArray> formats;
    for (int i = 0; i < _qt_NumFormats; ++i)
        formats << _qt_BuiltInFormats[i].extension;

    QFactoryLoader *l = loader();
    QStringList keys = l->keys();

    for (int i = 0; i < keys.count(); ++i) {
        QImageIOPlugin *plugin = qobject_cast<QImageIOPlugin *>(l->instance(keys.at(i)));
        if (plugin && plugin->capabilities(0, keys.at(i).toLatin1()) & QImageIOPlugin::CanRead)
            formats << keys.at(i).toLatin1();
#endif // QT_NO_LIBRARY

    QList<QByteArray> sortedFormats;
    for (QSet<QByteArray>::ConstIterator it = formats.constBegin(); it != formats.constEnd(); ++it)
        sortedFormats << *it;

    return sortedFormats;

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