def __getEncodingWindow(self):
"""Returns the main windows controlled by this controller.
Implements lazy initialization"""
if self.__encodingWindow is None:
self.__encodingWindow = EncodingWindow(self.__root,self)
self.__encodingWindow.init()
return self.__encodingWindow
def init(self):
EncodingWindow.init(self)
self.buttonEncode.config(text="DECRYPT")
Tkinter.Label(self.frameTop,text="DECRYPT A FILE",font=self.fontTitle).grid(row=0,columnspan=4)
def __init__(self,parent,controller):
EncodingWindow.__init__(self,parent,controller)
class GuiController(object):
def __init__(self,controller):
self.__mainWindow = None
self.__encodingWindow = None
self.__decryptWindow = None
self.__root = None
# Points to the currently displayed frame
self.__currentFrame = None
# The process model
self.__processModel = None
#The application controller
self.__controller = controller
def init(self,model):
""" Creates the Tk root, and initializes the view with the MainWindow frame"""
#Create the model
self.__processModel = model
#Initializes GUI
self.__root = Tkinter.Tk()
self.__root.wm_geometry("500x300")
self.__root.columnconfigure(0,weight=1)
self.__root.rowconfigure(0,weight=1)
self.__root.title("ENCRYPTION/DECRYPTION TOOL")
self.__changeFrame(self.__getMainWindow().frame)
#Link model with listeners
self.__processModel.addListener(self.__getEncodingWindow())
self.__processModel.addListener(self.__getDecryptWindow())
self.__root.mainloop()
"""SERIES OF COMMANDS CALLABLE FROM THE DIFFERENT GUI PARTS"""
def goToEncodeWindow(self):
print "GO TO ENCODE WINDOW"
self.__changeFrame(self.__getEncodingWindow().frame)
def goToDecodeWindow(self):
print "GO TO DECODE WINDOW"
self.__changeFrame(self.__getDecryptWindow().frame)
def goToMainWindow(self):
print "GO TO MAIN WINDOW"
self.__changeFrame(self.__getMainWindow().frame)
self.__processModel.reset()
def setSource(self,text):
self.__controller.setSource(text)
def setDestination(self,text):
self.__controller.setDestination(text)
def encrypt(self,password):
self.__controller.encrypt(password)
def decrypt(self,password):
self.__controller.decrypt(password)
""" A bunch of methods for lazy initialization"""
def __getMainWindow(self):
"""Returns the main windows controlled by this controller.
Implements lazy initialization"""
if self.__mainWindow is None:
self.__mainWindow = MainWindow(self.__root,self)
self.__mainWindow.init()
return self.__mainWindow
def __getEncodingWindow(self):
"""Returns the main windows controlled by this controller.
Implements lazy initialization"""
if self.__encodingWindow is None:
self.__encodingWindow = EncodingWindow(self.__root,self)
self.__encodingWindow.init()
return self.__encodingWindow
def __getDecryptWindow(self):
"""Returns the main windows controlled by this controller.
Implements lazy initialization"""
if self.__decryptWindow is None:
self.__decryptWindow = DecryptWindow.DescryptWindow(self.__root,self)
self.__decryptWindow.init()
return self.__decryptWindow
def __changeFrame(self,newFrame):
if not self.__currentFrame is None:
self.__currentFrame.grid_remove()
newFrame.grid(column = 0, row = 0, sticky=Tkinter.NSEW);
self.__currentFrame = newFrame
