class LoginMenu(QtGui.QWidget):
## Signal which will be used to launch the main menu.
loginSuccessSignal = QtCore.pyqtSignal()
## The currently logged in user's username. initialized to 'None' if not currently logged in.
loggedUsername = None
def __init__(self, parent=None):
super(LoginMenu, self).__init__(parent)
self.initUI()
## Instance of the database.
self.db = Database()
self.db.createUserAccountsForDemo()
## This method initialize the GUI of the login menu.
def initUI(self):
buttonWidth = 150
column1XCoordinate = 84
column2XCoordinate = 234
# First Column
## This is a QLabel to show the signup Title.
self.signUpTitle = QtGui.QLabel('Create Account:', self)
self.signUpTitle.setFixedWidth(buttonWidth)
self.signUpTitle.setAlignment(QtCore.Qt.AlignHCenter)
self.signUpTitle.move(column1XCoordinate, 92)
## This is a QLineEdit that creates a field the user uses to enter his name.
self.yourName = QtGui.QLineEdit('Your Name', self)
self.yourName.setFixedWidth(buttonWidth)
self.yourName.move(column1XCoordinate, 142)
## This is a QLineEdit that creates a field the user uses to enter his username.
self.username = QtGui.QLineEdit('Username', self)
self.username.setFixedWidth(buttonWidth)
self.username.move(column1XCoordinate, 172)
## This is a QLineEdit that creates a field the user uses to enter his password
self.password = QtGui.QLineEdit('Password', self)
self.password.setEchoMode(QtGui.QLineEdit.Password)
self.password.setFixedWidth(buttonWidth)
self.password.move(column1XCoordinate, 202)
## This is a button that calls the register() method when clicked.
self.signUpButton = QtGui.QPushButton('SignUp', self)
self.signUpButton.setFixedWidth(buttonWidth)
self.signUpButton.move(column1XCoordinate, 232)
self.signUpButton.clicked.connect(self.register)
# Second Column
## This is a QLabel to show the login Title.
self.loginTitle = QtGui.QLabel('Login:'******'Username', self)
self.loginUsername.setFixedWidth(buttonWidth)
self.loginUsername.move(column2XCoordinate, 172)
## This is a QLineEdit that creates a field the user uses to enter his password.
self.loginPassword = QtGui.QLineEdit('Password', self)
self.loginPassword.setEchoMode(QtGui.QLineEdit.Password)
self.loginPassword.setFixedWidth(buttonWidth)
self.loginPassword.move(column2XCoordinate, 202)
## This is a button that calls the login() method when clicked.
self.loginButton = QtGui.QPushButton('Login', self)
self.loginButton.setFixedWidth(buttonWidth)
self.loginButton.move(column2XCoordinate, 232)
self.loginButton.clicked.connect(self.login)
self.setFixedHeight(468)
self.setFixedWidth(468)
## This method is used to login an existing user.
# it verifies if the user's information match an existing user account and then emit loginSuccessSignal.
def login(self):
username = str(self.loginUsername.text())
password = str(self.loginPassword.text())
if self.db.checkUser(username, password):
self.loggedUsername = username
self.loginSuccessSignal.emit()
else:
QtGui.QMessageBox.warning(self,'Warning!','Wrong username or password',QtGui.QMessageBox.Ok)
## This method is used to register a new user.
# It first verifies if the user's username and password follow the restrictions.
def register(self):
name = str(self.yourName.text())
username = str(self.username.text())
password = str(self.password.text())
if (not self.db.isValidUsername(username)):
invalidUsernameMessage = '''Usernames must be at least 6 characters long.'''
QtGui.QMessageBox.warning(self,'Warning!',invalidUsernameMessage,QtGui.QMessageBox.Ok)
elif (not self.db.isValidPassword(password)):
invalidPasswordMessage = '''Invalid password. The password must be at least 8 characters long and contain the following:\n - 1 Upper case letter\n - 1 Lower case letter\n - 1 Digit\n - 1 Special character'''
QtGui.QMessageBox.warning(self,'Warning!',invalidPasswordMessage,QtGui.QMessageBox.Ok)
elif self.db.createUser(name,username,password):
registerSuccessMessage = '''Your account has been successfully registered.'''
QtGui.QMessageBox.information(self,'Success!',registerSuccessMessage,QtGui.QMessageBox.Ok);
self.loginSuccessSignal.emit()
else:
QtGui.QMessageBox.warning(self,'Warning!','The username has been taken',QtGui.QMessageBox.Ok)
class AccountSettingsMenu(QtGui.QWidget):
## Instance of the currently active user's username.
loggedUsername = None
## Signal which will be used to return to the main menu.
backToMainMenuSignal = QtCore.pyqtSignal()
def __init__(self, parent, username):
super(AccountSettingsMenu, self).__init__(parent)
## Instance of this class's parent.
self.parent = parent
self.loggedUsername = username
## Instance of the database.
self.db = Database()
self.initUI()
## This method initializes the GUI for the account settings menu.
def initUI(self):
user = self.db.getUserAccount(self.loggedUsername)
oldRealName = user['realname']
oldUsername = user['username']
oldPassword = user['password']
buttonWidth = 150
column1XCoordinate = 84
column2XCoordinate = 234
## A QLabel which displays the titles of following fields.
self.title = QtGui.QLabel('Real Name:', self)
self.title.setFixedWidth(buttonWidth)
self.title.setAlignment(QtCore.Qt.AlignHCenter)
self.title.move(column1XCoordinate, 142)
self.title = QtGui.QLabel('User Name:', self)
self.title.setFixedWidth(buttonWidth)
self.title.setAlignment(QtCore.Qt.AlignHCenter)
self.title.move(column1XCoordinate, 172)
self.title = QtGui.QLabel('Password:'******'Change Account Settings:', self)
self.title.setFixedWidth(buttonWidth)
self.title.setAlignment(QtCore.Qt.AlignHCenter)
self.title.move(column2XCoordinate, 92)
## This is a QLineEdit which the user can use to enter his new real name.
self.yourName = QtGui.QLineEdit(oldRealName, self)
self.yourName.setFixedWidth(buttonWidth)
self.yourName.move(column2XCoordinate, 142)
## This is a QLineEdit which the user can use to enter his new username.
self.username = QtGui.QLineEdit(oldUsername, self)
self.username.setFixedWidth(buttonWidth)
self.username.move(column2XCoordinate, 172)
## This is a QLineEdit which the user can use to enter his new password.
self.password = QtGui.QLineEdit(oldPassword, self)
self.password.setEchoMode(QtGui.QLineEdit.Password)
self.password.setFixedWidth(buttonWidth)
self.password.move(column2XCoordinate, 202)
## This is a buttton that calls changeSettings() when clicked.
self.changeButton = QtGui.QPushButton('Change Settings', self)
self.changeButton.setFixedWidth(buttonWidth)
self.changeButton.move(column2XCoordinate, 232)
self.changeButton.clicked.connect(self.changeSettings)
## This is a button that calls backToMainMenu() when clicked.
self.backButton = QtGui.QPushButton('Back to Main Menu', self)
self.backButton.setFixedWidth(buttonWidth)
self.backButton.move(column2XCoordinate, 272)
self.backButton.clicked.connect(self.backToMainMenu)
self.setFixedHeight(468)
self.setFixedWidth(468)
## This method is used to change the user's name,username AND password.
def changeSettings(self):
name = str(self.yourName.text())
username = str(self.username.text())
password = str(self.password.text())
if (not self.db.isValidUsername(username)):
invalidUsernameMessage = '''Usernames must be at least 6 characters long.'''
QtGui.QMessageBox.warning(self,'Warning!',invalidUsernameMessage,QtGui.QMessageBox.Ok)
elif (not self.db.isValidPassword(password)):
invalidPasswordMessage = '''Invalid password. The password must be at least 8 characters long and contain the following:\n - 1 Upper case letter\n - 1 Lower case letter\n - 1 Digit\n - 1 Special character'''
QtGui.QMessageBox.warning(self,'Warning!',invalidPasswordMessage,QtGui.QMessageBox.Ok)
elif self.db.updateUserAccount(self.loggedUsername, username, name, password):
changeSuccessMessage = '''Your account information has been successfully changed.'''
QtGui.QMessageBox.information(self,'Success!',changeSuccessMessage,QtGui.QMessageBox.Ok);
self.parent.loginWidget.loggedUsername = username
else:
QtGui.QMessageBox.warning(self,'Warning!','The username has been taken',QtGui.QMessageBox.Ok)
## This method emit backToMainMenuSignal when called.
def backToMainMenu(self):
self.backToMainMenuSignal.emit()