bool resize(base::DataSourceBase::shared_ptr arg, int size_rows, int size_columns) const
{
if (arg->isAssignable()) {
typename internal::AssignableDataSource<T>::shared_ptr asarg = internal::AssignableDataSource<T>::narrow( arg.get() );
asarg->set().resize( size_rows, size_columns );
asarg->updated();
return true;
}
return false;
}
virtual bool composeType( base::DataSourceBase::shared_ptr source, base::DataSourceBase::shared_ptr result) const {
const internal::DataSource<PropertyBag>* pb = dynamic_cast< const internal::DataSource<PropertyBag>* > (source.get() );
if ( !pb )
return false;
typename internal::AssignableDataSource<UserType>::shared_ptr ads = boost::dynamic_pointer_cast< internal::AssignableDataSource<UserType> >( result );
if ( !ads )
return false;
// last fall-back: use user supplied function:
if ( composeTypeImpl( pb->rvalue(), ads->set() ) )
ads->updated();
else {
Logger::log() <<Logger::Debug<<"Failed to compose from "<< source->getTypeName() <<Logger::endl;
return false;
}
Logger::log() <<Logger::Debug<<"Successfuly composed type from "<< source->getTypeName() <<Logger::endl;
return true;
}