def _initialize_fileprovider(self, path, keep_fileprovider):
""" Creates the L{file_provider.FileProvider} for C{path}.
If C{path} is a list, assumes that only the files in the list
should be available. If C{path} is a string, assume that it is
either a directory or an image file, and all files in that directory
should be opened.
@param path: List of file names, or single file/directory as string.
@param keep_fileprovider: If C{True}, no new provider is constructed.
@return: If C{path} was a list, returns the first list element.
Otherwise, C{path} is not modified."""
if isinstance(path, list) and len(path) == 0:
# This is a programming error and does not need translation.
assert False, "Tried to open an empty list of files."
elif isinstance(path, list) and len(path) > 0:
# A list of files was passed - open only these files.
if self._file_provider is None or not keep_fileprovider:
self._file_provider = file_provider.get_file_provider(path)
return path[0]
else:
# A single file was passed - use Comix' classic open mode
# and open all files in its directory.
if self._file_provider is None or not keep_fileprovider:
self._file_provider = file_provider.get_file_provider([ path ])
return path
def _initialize_fileprovider(self, path, keep_fileprovider):
''' Creates the L{file_provider.FileProvider} for C{path}.
If C{path} is a list, assumes that only the files in the list
should be available. If C{path} is a string, assume that it is
either a directory or an image file, and all files in that directory
should be opened.
@param path: List of file names, or single file/directory as string.
@param keep_fileprovider: If C{True}, no new provider is constructed.
@return: If C{path} was a list, returns the first list element.
Otherwise, C{path} is not modified.'''
if isinstance(path, list) and len(path) == 0:
# This is a programming error and does not need translation.
assert False, 'Tried to open an empty list of files.'
elif isinstance(path, list) and len(path) > 0:
# A list of files was passed - open only these files.
if self._file_provider is None or not keep_fileprovider:
self._file_provider = file_provider.get_file_provider(path)
return path[0]
else:
# A single file was passed - use Comix' classic open mode
# and open all files in its directory.
if self._file_provider is None or not keep_fileprovider:
self._file_provider = file_provider.get_file_provider([path])
return path