def is_valid(self):
"""
- Checks if valid
:return: - True if valid
- False otherwise
"""
if not isinstance(self.directory_path, str) \
or not isinstance(self.description, str) \
or not isinstance(self.file_name, str):
return False
if self.directory_path == '' \
or self.description == '' \
or self.file_name == '':
return False
file_path = self.directory_path + '/' + self.file_name
if not fe.is_directory(self.directory_path) \
or not fe.is_file(file_path):
return False
return True
def _directory_path_changed_eh(self, directory_path: str):
""" Automatically called when the directory is changed.
:param directory_path: Path of the new directory.
"""
self._f_name_input.change_directory_path(directory_path)
if isinstance(directory_path, str) \
and directory_path != '' \
and fe.is_directory(directory_path):
self._file_input.directory_path = directory_path
self._f_name_input.enable()
# If the user completed the form but at some point the directory
# was no longer valid but now it is. This will trigger the file
# name change event handler.
if self._file_input.file_name != '':
self._file_name_changed_eh(self._file_input.file_name)
else:
self._file_input.directory_path = ''
self._f_name_input.disable()
self._description.disable()
self._invalid_input_eh()
def is_valid(self):
"""
- Checks if valid
:return: - True if valid
- False otherwise
"""
if self.cifar10 and not self.imagenet and not self.images \
or not self.cifar10 and self.imagenet and not self.images \
or not self.cifar10 and not self.imagenet and self.images:
if self.cifar10:
if not self.cifar10_train_ds and not self.cifar10_test_ds:
return False
if self.images:
if not fe.is_directory(self.data_set_location):
return False
if not self.class_correlation.is_valid():
return False
return True
else:
return False
def data_set_location(self, value: str):
if self._images and not fe.is_directory(value) \
or not isinstance(value, str):
raise ValueError('Data set location must be a string and also a '
'valid path.')
self._data_set_location = value
def _from_images_eh(self):
"""
- Called when the user wants to use folders with images as initial
data set.
"""
self._data_set_details.data_set_location = filedialog.askdirectory(
title=const.IDSP_FROM_IMAGES_INITIAL_DIR,
initialdir=const.IDSP_FROM_IMAGES_TITLE)
selected_path = self._data_set_details.data_set_location
# Checks if the user has selected a directory.
if isinstance(selected_path, str) and selected_path != '':
# Checks if the received path is a directory.
if f_expert.is_directory(selected_path):
# Gets a list with all the visible subdirectories.
self._data_set_details.identifiers = \
f_expert.get_directories(selected_path)
# Updates the identifier list
self._cii_class_input.update_data_set_identifier(
self._data_set_details.identifiers)
# Sets teh previous selection value to the current button.
self._previous_selection = const.IDSP_FROM_IMAGES_VAL
# Saving details about the initial data set.
self._data_set_details.cifar10 = False
self._data_set_details.imagenet = False
self._data_set_details.images = True
# Until the user selects the identifiers for each class the
# form is invalid.
self._invalid_cii_form_eh()
self._lbl_instruction.forget()
else:
# If the user did not select a directory.
if self._previous_selection != const.IDSP_NO_SELECTION_VAL:
# If another initial data set was selected before, that
# button is selected again.
self._qna_initial_data_set.select_button(
self._previous_selection)
else:
# If no initial data set was selected before, the current
# button is deselected.
self._qna_initial_data_set.deselect_button(
const.IDSP_FROM_IMAGES_VAL)
def _make_sure_the_required_files_exist(self):
"""
- Makes sure that the Cifar10 files exist and are valid.
"""
if not fe.is_directory(const.CIFAR10_SAVE_LOCATION):
fe.crete_directory(const.CIFAR10_SAVE_LOCATION)
if self._download_cifar10():
self._extract_cifar10()
else:
if DataSetValidator.check_if_extract_is_needed():
if DataSetValidator.check_if_download_is_needed():
if not self._download_cifar10():
return
self._extract_cifar10()
def check_if_extract_is_needed():
"""
:return: - True if the extract is required.
- False otherwise.
"""
cifar10_directory_exists = fe.is_directory(
path=const.CIFAR10_DIRECTORY_PATH
)
if not cifar10_directory_exists \
or not DataSetValidator.cifar10_files_exist_and_are_valid() \
and cifar10_directory_exists:
return True
return False