-lyx::Converter const * setConverter(string const & from)
-{
- typedef vector<string> FmtList;
- typedef lyx::graphics::Cache GCache;
- FmtList const & loadableFormats = GCache::get().loadableFormats();
- FmtList::const_iterator it = loadableFormats.begin();
- FmtList::const_iterator const end = loadableFormats.end();
-
- for (; it != end; ++it) {
- string const to = *it;
- if (from == to)
- continue;
-
- lyx::Converter const * ptr = lyx::theConverters().getConverter(from, to);
- if (ptr)
- return ptr;
- }
-
- // Show the error only once. This is thread-safe.
- static nullptr_t no_conv = [&]{
- LYXERR0("PreviewLoader::startLoading()\n"
- << "No converter from \"" << from
- << "\" format has been defined.");
- return nullptr;
- } ();
-
- return no_conv;
-}
-
-