/** Gets the first extension that the algorithm passed algorithm has in it's
* FileProperty (the FileProperty must have the name "Filename"
* @param algName :: name of the Mantid save algorithm
* @return the first extension, if the algorithm's Filename property has an
* extension list or ""
*/
QString SaveWorkspaces::getSaveAlgExt(const QString &algName) {
IAlgorithm_sptr alg =
AlgorithmManager::Instance().create(algName.toStdString());
Property *prop = alg->getProperty("Filename");
FileProperty *fProp = dynamic_cast<FileProperty *>(prop);
if (fProp) {
return QString::fromStdString(fProp->getDefaultExt());
} else { // the algorithm doesn't have a "Filename" file property which may
// indicate an error later on or maybe OK
return "";
}
}
/**
* Create a list of file extensions from the given algorithm
* @param algName :: The name of the algorithm
* @param propName :: The name of the property
* @returns A list of file extensions
*/
QStringList
MWRunFiles::getFileExtensionsFromAlgorithm(const QString &algName,
const QString &propName) {
Mantid::API::IAlgorithm_sptr algorithm =
Mantid::API::AlgorithmManager::Instance().createUnmanaged(
algName.toStdString());
QStringList fileExts;
if (!algorithm)
return fileExts;
algorithm->initialize();
Property *prop = algorithm->getProperty(propName.toStdString());
FileProperty *fileProp = dynamic_cast<FileProperty *>(prop);
MultipleFileProperty *multiFileProp =
dynamic_cast<MultipleFileProperty *>(prop);
std::vector<std::string> allowed;
QString preferredExt;
if (fileProp) {
allowed = fileProp->allowedValues();
preferredExt = QString::fromStdString(fileProp->getDefaultExt());
} else if (multiFileProp) {
allowed = multiFileProp->allowedValues();
preferredExt = QString::fromStdString(multiFileProp->getDefaultExt());
} else {
return fileExts;
}
std::vector<std::string>::const_iterator iend = allowed.end();
int index(0);
for (std::vector<std::string>::const_iterator it = allowed.begin();
it != iend; ++it) {
if (!it->empty()) {
QString ext = QString::fromStdString(*it);
fileExts.append(ext);
if (ext == preferredExt) {
fileExts.move(index, 0);
}
++index;
}
}
return fileExts;
}