def __init__(self, parent):
""" Create a new SubstitutionCipherAnalyzer instance.
Args:
parent: a class that provides an interafce to CryptographyStudio
"""
super().__init__(parent)
self._cipher = SubstitutionCipher(parent)
self._widget.show_all()
class SubstitutionCipherAnalyzer(WidgetController, CipherAnalyzer):
"""
This is a Cipher Analyzer implementation for the simple substitution
cipher.
Args:
GLADE_LOCATION: string, path to de "resources" folder containing the
.glade file for this widget
SETTINGS_BOX_ID: string, id of the container in which the cipher
selection widget is placed
TRY_BUTTON_ID: string, id of the try button
"""
GLADE_LOCATION = path.dirname(__file__)
SETTINGS_BOX_ID = "settings_box"
TRY_BUTTON_ID = "try_button"
def __init__(self, parent):
""" Create a new SubstitutionCipherAnalyzer instance.
Args:
parent: a class that provides an interafce to CryptographyStudio
"""
super().__init__(parent)
self._cipher = SubstitutionCipher(parent)
self._widget.show_all()
def _build_gui(self):
""" Build the widget UI of this WidgetController. """
super()._build_gui()
settings_box = self._builder.get_object(self.SETTINGS_BOX_ID)
self._permutation_selector = PermutationSelector()
settings_box.pack_start(self._permutation_selector, True, False, 0)
def _load_gui_objects(self):
""" Save references to required objects defined in the .glade file. """
super()._load_gui_objects()
self._try_button = self._builder.get_object(self.TRY_BUTTON_ID)
def _connect_handlers(self):
""" Connect signals with their handler methods. """
super()._connect_handlers()
self._try_button.connect("clicked", self._try_key)
def _try_key(self, *args):
""" A handler method that trys to decrypt the text in the parents
ciphertext view.
Key is obtained from this widget's PermutationSelector and the result
is displayed in parent's plaitext view.
Args:
*arg: arguments passed from the signal
"""
key = self._permutation_selector.get_permutation()
ciphertext = self._parent.get_ciphertext()
self._parent.set_plaintext(self._cipher.decrypt(ciphertext, key))
