/*!
Returns the list of image formats supported by QImageWriter.
By default, Qt can write the following formats:
\table
\header \li Format \li MIME type \li Description
\row \li BMP \li image/bmp \li Windows Bitmap
\row \li JPG \li image/jpeg \li Joint Photographic Experts Group
\row \li PNG \li image/png \li Portable Network Graphics
\row \li PBM \li image/x-portable-bitmap \li Portable Bitmap
\row \li PGM \li image/x-portable-graymap \li Portable Graymap
\row \li PPM \li image/x-portable-pixmap \li Portable Pixmap
\row \li XBM \li image/x-xbitmap \li X11 Bitmap
\row \li XPM \li image/x-xpixmap \li X11 Pixmap
\endtable
Reading and writing SVG files is supported through the \l{Qt SVG} module.
The \l{Qt Image Formats} module provides support for additional image formats.
Note that the QApplication instance must be created before this function is
called.
\sa setFormat(), QImageReader::supportedImageFormats(), QImageIOPlugin
*/
QList<QByteArray> QImageWriter::supportedImageFormats()
{
QList<QByteArray> formats;
#ifndef QT_NO_IMAGEFORMAT_BMP
formats << "bmp";
#endif
#ifndef QT_NO_IMAGEFORMAT_PPM
formats << "pbm" << "pgm" << "ppm";
#endif
#ifndef QT_NO_IMAGEFORMAT_XBM
formats << "xbm";
#endif
#ifndef QT_NO_IMAGEFORMAT_XPM
formats << "xpm";
#endif
#ifndef QT_NO_IMAGEFORMAT_PNG
formats << "png";
#endif
#ifndef QT_NO_IMAGEFORMAT_JPEG
formats << "jpg" << "jpeg";
#endif
#ifndef QT_NO_IMAGEFORMATPLUGIN
supportedImageHandlerFormats(loader(), QImageIOPlugin::CanWrite, &formats);
#endif // QT_NO_IMAGEFORMATPLUGIN
std::sort(formats.begin(), formats.end());
formats.erase(std::unique(formats.begin(), formats.end()), formats.end());
return formats;
}
QList<QByteArray> QImageReader::supportedImageFormats()
{
QSet<QByteArray> formats;
for (int i = 0; i < _qt_NumFormats; ++i)
formats << _qt_BuiltInFormats[i].extension;
#ifndef QT_NO_IMAGEFORMATPLUGIN
supportedImageHandlerFormats(loader(), QImageIOPlugin::CanRead, &formats);
#endif // QT_NO_IMAGEFORMATPLUGIN
QList<QByteArray> sortedFormats;
for (QSet<QByteArray>::ConstIterator it = formats.constBegin(); it != formats.constEnd(); ++it)
sortedFormats << *it;
qSort(sortedFormats);
return sortedFormats;
}