void PresetLoader::rescan()
{
// std::cerr << "Rescanning..." << std::endl;
// Clear the directory entry collection
clear();
// If directory already opened, close it first
if ( _dir )
{
closedir ( _dir );
_dir = 0;
}
// Allocate a new a stream given the current directory name
if ( ( _dir = opendir ( _dirname.c_str() ) ) == NULL )
{
handleDirectoryError();
return; // no files loaded. _entries is empty
}
struct dirent * dir_entry;
std::set<std::string> alphaSortedFileSet;
std::set<std::string> alphaSortedPresetNameSet;
while ( ( dir_entry = readdir ( _dir ) ) != NULL )
{
if (dir_entry->d_name == 0)
continue;
std::ostringstream out;
// Convert char * to friendly string
std::string filename ( dir_entry->d_name );
// Verify extension is projectm or milkdrop
if (!_presetFactoryManager.extensionHandled(parseExtension(filename)))
continue;
if ( filename.length() > 0 && filename[0] == '.' )
continue;
// Create full path name
out << _dirname << PATH_SEPARATOR << filename;
// Add to our directory entry collection
alphaSortedFileSet.insert ( out.str() );
alphaSortedPresetNameSet.insert ( filename );
// the directory entry struct is freed elsewhere
}
// Push all entries in order from the file set to the file entries member (which is an indexed vector)
for ( std::set<std::string>::iterator pos = alphaSortedFileSet.begin();
pos != alphaSortedFileSet.end();++pos )
_entries.push_back ( *pos );
// Push all preset names in similar fashion
for ( std::set<std::string>::iterator pos = alphaSortedPresetNameSet.begin();
pos != alphaSortedPresetNameSet.end();++pos )
_presetNames.push_back ( *pos );
// Give all presets equal rating of 3 - why 3? I don't know
_ratings = std::vector<RatingList>(TOTAL_RATING_TYPES, RatingList( _presetNames.size(), 3 ));
_ratingsSums = std::vector<int>(TOTAL_RATING_TYPES, 3 * _presetNames.size());
assert ( _entries.size() == _presetNames.size() );
}
/// Clears all presets from the collection
inline void clear() {
_entries.clear(); _presetNames.clear();
_ratings = std::vector<RatingList>(TOTAL_RATING_TYPES, RatingList());
clearRatingsSum();
}
