/*!
Returns TRUE if the information in \a e can be decoded into an image.
\sa decode()
*/
bool QImageDrag::canDecode( const QMimeSource* e )
{
QStrList fileFormats = QImageIO::inputFormats();
fileFormats.first();
while ( fileFormats.current() ) {
QCString format = fileFormats.current();
QCString type = "image/" + format.lower();
if ( e->provides( type.data() ) )
return TRUE;
fileFormats.next();
}
return FALSE;
}
/*!
Attempts to decode the dropped information in \a e
into \a img, returning TRUE if successful.
\sa canDecode()
*/
bool QImageDrag::decode( const QMimeSource* e, QImage& img )
{
QByteArray payload;
QStrList fileFormats = QImageIO::inputFormats();
// PNG is best of all
if ( fileFormats.remove("PNG") ) // move to front
fileFormats.insert(0,"PNG");
fileFormats.first();
while ( fileFormats.current() ) {
QCString format = fileFormats.current();
QCString type = "image/" + format.lower();
payload = e->encodedData( type.data() );
if ( !payload.isEmpty() )
break;
fileFormats.next();
}
if ( payload.isEmpty() )
return FALSE;
img.loadFromData(payload);
return !img.isNull();
}
QStringList opie_imageExtensions() {
/*
* File extensions (e.g jpeg JPG jpg) are not
* parsed yet
*/
if ( !opie_image_extension_List ) {
opie_image_extension_List = new QStringList();
qAddPostRoutine( clean_opie_image_extension_List );
QStrList fileFormats = QImageIO::inputFormats();
QString ff = fileFormats.first();
while ( fileFormats.current() ) {
*opie_image_extension_List += MimeType("image/"+ff.lower()).extensions();
ff = fileFormats.next();
}
}
return *opie_image_extension_List; // QShared so it should be efficient
}
