def __init__(self):
QtCore.QCoreApplication.setApplicationName("PSSOptimisation")
QtCore.QCoreApplication.setApplicationVersion(str(VERSION))
QtCore.QCoreApplication.setOrganizationName("Hubert Grzeskowiak")
self.settings = QtCore.QSettings()
self.main_window = MainWindow(True)
self.grades_model = GradesModel(self.main_window)
self.proxy_model = GradesModelProxy()
self.proxy_model.setSourceModel(self.grades_model)
self.initUI()
def __init__(self):
QtCore.QCoreApplication.setApplicationName("PSSOptimisation")
QtCore.QCoreApplication.setApplicationVersion(str(VERSION))
QtCore.QCoreApplication.setOrganizationName("Hubert Grzeskowiak")
self.settings = QtCore.QSettings()
self.main_window = MainWindow(True)
self.grades_model = GradesModel(self.main_window)
self.proxy_model = GradesModelProxy()
self.proxy_model.setSourceModel(self.grades_model)
self.initUI()
class PSSOptimisation(object):
def __init__(self):
QtCore.QCoreApplication.setApplicationName("PSSOptimisation")
QtCore.QCoreApplication.setApplicationVersion(str(VERSION))
QtCore.QCoreApplication.setOrganizationName("Hubert Grzeskowiak")
self.settings = QtCore.QSettings()
self.main_window = MainWindow(True)
self.grades_model = GradesModel(self.main_window)
self.proxy_model = GradesModelProxy()
self.proxy_model.setSourceModel(self.grades_model)
self.initUI()
# tray = QtGui.QSystemTrayIcon(self.main_window)
# tray.setIcon(QtGui.QIcon("icons/Accessories-calculator.svg"))
# tray.connect(tray,
# SIGNAL("activated(QSystemTrayIcon::ActivationReason)"),
# self.trayClicked)
# tray.show()
# self.tray = tray
# def trayClicked(self, reason):
# print reason
# if reason == QtGui.QSystemTrayIcon.DoubleClick:
# self.main_window.setVisible(not self.main_window.isVisible())
def initUI(self):
self.connectUI()
self.main_window.show()
def __columnsChanged(self):
"""This should be called whenever the columns filter is changed.
It's a workaround for a bug in the headerview not updating the columns
properly on filter change.
"""
header = self.main_window.grades_table.horizontalHeader()
header.resizeSections(QtGui.QHeaderView.ResizeToContents)
header.resizeSection(0, header.sectionSize(0) - 1)
header.resizeSection(0, header.sectionSize(0) + 1)
def connectUI(self):
self.main_window.grades_table.setModel(self.proxy_model)
delegate = CheckBoxDelegate()
self.main_window.grades_table.setItemDelegate(delegate)
self.main_window.connect(self.main_window.action_download,
SIGNAL("triggered()"), self.openLoginDialog)
self.main_window.connect(self.main_window.action_donate,
SIGNAL("triggered()"),
self.openDonationDialog)
self.main_window.connect(self.main_window.action_open,
SIGNAL("triggered()"), self.openFileDialog)
self.main_window.connect(self.grades_model, SIGNAL("dataChanged()"),
self.updateStats)
self.main_window.connect(
self.grades_model, SIGNAL("dataChanged()"),
self.main_window.grades_table.resizeColumnsToContents)
self.main_window.connect(self.grades_model, SIGNAL("modelReset()"),
self.updateStats)
self.main_window.connect(
self.grades_model, SIGNAL("modelReset()"),
self.main_window.grades_table.resizeColumnsToContents)
# workaround for buggy headerview
self.main_window.connect(self.proxy_model,
SIGNAL("columnsVisibilityChanged()"),
self.__columnsChanged)
# create actions for toggling table columns
header = self.main_window.grades_table.horizontalHeader()
self.header_actions = QtGui.QActionGroup(header)
self.header_actions.setExclusive(False)
for nr, (name, visible) in enumerate(
zip(self.grades_model.header_data,
self.proxy_model.col_visibility)):
action = self.header_actions.addAction(name)
action.setCheckable(True)
action.setChecked(visible)
action.connect(action,
SIGNAL("triggered()"),
lambda nr=nr: self.proxy_model.toggleColumn(nr))
# add that menu as context menu for the header
header.addActions(self.header_actions.actions())
header.setContextMenuPolicy(QtCore.Qt.ActionsContextMenu)
# and put it into the main window's menus
self.main_window.menu_table_columns.clear()
for action in self.header_actions.actions():
self.main_window.menu_table_columns.addAction(action)
# automatically download new grades (depends on settings)
if self.settings.value("updateOnStart", False).toBool():
QtCore.QTimer.singleShot(200, self.tryAutoDownloadFromPSSO)
def openLoginDialog(self):
self.login_dialog = LoginDialog(self.main_window)
self.login_dialog.exec_()
if self.login_dialog.result():
username = str(self.login_dialog.username_line.text())
password = str(self.login_dialog.password_line.text())
if username and password:
remember = self.login_dialog.remember_checkbox.isChecked()
self.handleLoginData(username, password, remember)
def handleLoginData(self, username, password, remember=False):
"""Try to load the grades by using the provided login credentials.
On failure, an error popup is displayed. On success a loading progress
bar and after that a table is shown.
If "remember" is True, then the login data is saved.
"""
self.main_window.setDisabled(True)
QtGui.QApplication.processEvents()
QtGui.QApplication.processEvents()
progress = 0
try:
iterator = self.grades_model.getFromPSSOIterator(
username, password)
for step in iterator:
self.main_window.showProgress(progress, step)
# getFromPSSOIterator defines 8 steps, but 1st is at 0
progress += 100.0 / 7
QtGui.QApplication.processEvents()
except (ConnectionError, ServiceUnavailableError, ParsingError) as e:
QtGui.QMessageBox.critical(self.main_window, e.title, e.message)
return
except LoginError as e:
self.clearLoginData(username)
QtGui.QMessageBox.critical(self.main_window, e.title, e.message)
return
finally:
self.main_window.setEnabled(True)
self.main_window.showProgress(-1)
self.main_window.showTable()
self.main_window.setEnabled(True)
if remember:
self.saveLoginData(username, password)
def saveLoginData(self, username, password):
assert username and password
self.settings.setValue("username", username)
keyring.set_password("PSSO", username, password)
def getLoginData(self):
"""Try to retrieve previously saved username and password. Returns
a tuple of two empty strings on failure.
"""
username = str(self.settings.value("username").toString() or "")
try:
password = keyring.get_password("PSSO", username) or ""
except IOError:
return "", ""
return username, password
def clearLoginData(self, username=None):
"""Remove username and password settings. If a username is given,
its password will be removed. If there is a saved username,
it will also get removed alongside with the corresponding password.
"""
username2 = str(self.settings.value("username").toString() or "")
try:
keyring.delete_password("PSSO", username)
except:
pass
try:
keyring.delete_password("PSSO", username2)
except:
pass
self.settings.remove("username")
def tryAutoDownloadFromPSSO(self):
u, p = self.getLoginData()
if u and p:
self.handleLoginData(u, p)
def openFileDialog(self):
ofd = OpenFileDialog(self.main_window)
accepted = ofd.exec_()
if accepted and ofd.html_file:
try:
html = codecs.open(ofd.html_file, encoding='utf-8')
except IOError:
QtGui.QMessageBox.warning(
self.main_window, "File not found",
"Sorry, but there seems to be no file called {}.".format(
ofd.html_file))
return
self.grades_model.getFromHTML(html)
self.main_window.showTable()
def openDonationDialog(self):
dp = DonationDialog(self.main_window)
dp.exec_()
def updateStats(self):
self.main_window.num_of_grades.setText(
str(self.grades_model.getNumOfGrades()))
self.main_window.num_of_credits.setText(
str(self.grades_model.getNumOfCredits()))
self.main_window.average_grade.setText(
str(self.grades_model.getAverageGrade()))
class PSSOptimisation(object):
def __init__(self):
QtCore.QCoreApplication.setApplicationName("PSSOptimisation")
QtCore.QCoreApplication.setApplicationVersion(str(VERSION))
QtCore.QCoreApplication.setOrganizationName("Hubert Grzeskowiak")
self.settings = QtCore.QSettings()
self.main_window = MainWindow(True)
self.grades_model = GradesModel(self.main_window)
self.proxy_model = GradesModelProxy()
self.proxy_model.setSourceModel(self.grades_model)
self.initUI()
# tray = QtGui.QSystemTrayIcon(self.main_window)
# tray.setIcon(QtGui.QIcon("icons/Accessories-calculator.svg"))
# tray.connect(tray,
# SIGNAL("activated(QSystemTrayIcon::ActivationReason)"),
# self.trayClicked)
# tray.show()
# self.tray = tray
# def trayClicked(self, reason):
# print reason
# if reason == QtGui.QSystemTrayIcon.DoubleClick:
# self.main_window.setVisible(not self.main_window.isVisible())
def initUI(self):
self.connectUI()
self.main_window.show()
def __columnsChanged(self):
"""This should be called whenever the columns filter is changed.
It's a workaround for a bug in the headerview not updating the columns
properly on filter change.
"""
header = self.main_window.grades_table.horizontalHeader()
header.resizeSections(QtGui.QHeaderView.ResizeToContents)
header.resizeSection(0, header.sectionSize(0)-1)
header.resizeSection(0, header.sectionSize(0)+1)
def connectUI(self):
self.main_window.grades_table.setModel(self.proxy_model)
delegate = CheckBoxDelegate()
self.main_window.grades_table.setItemDelegate(delegate)
self.main_window.connect(self.main_window.action_download,
SIGNAL("triggered()"), self.openLoginDialog)
self.main_window.connect(self.main_window.action_donate,
SIGNAL("triggered()"), self.openDonationDialog)
self.main_window.connect(self.main_window.action_open,
SIGNAL("triggered()"), self.openFileDialog)
self.main_window.connect(self.grades_model,
SIGNAL("dataChanged()"), self.updateStats)
self.main_window.connect(self.grades_model,
SIGNAL("dataChanged()"),
self.main_window.grades_table.resizeColumnsToContents)
self.main_window.connect(self.grades_model,
SIGNAL("modelReset()"), self.updateStats)
self.main_window.connect(self.grades_model,
SIGNAL("modelReset()"),
self.main_window.grades_table.resizeColumnsToContents)
# workaround for buggy headerview
self.main_window.connect(self.proxy_model,
SIGNAL("columnsVisibilityChanged()"),
self.__columnsChanged)
# create actions for toggling table columns
header = self.main_window.grades_table.horizontalHeader()
self.header_actions = QtGui.QActionGroup(header)
self.header_actions.setExclusive(False)
for nr, (name, visible) in enumerate(zip(
self.grades_model.header_data,
self.proxy_model.col_visibility)):
action = self.header_actions.addAction(name)
action.setCheckable(True)
action.setChecked(visible)
action.connect(action, SIGNAL("triggered()"),
lambda nr=nr: self.proxy_model.toggleColumn(nr))
# add that menu as context menu for the header
header.addActions(self.header_actions.actions())
header.setContextMenuPolicy(
QtCore.Qt.ActionsContextMenu)
# and put it into the main window's menus
self.main_window.menu_table_columns.clear()
for action in self.header_actions.actions():
self.main_window.menu_table_columns.addAction(action)
# automatically download new grades (depends on settings)
if self.settings.value("updateOnStart", False).toBool():
QtCore.QTimer.singleShot(200, self.tryAutoDownloadFromPSSO)
def openLoginDialog(self):
self.login_dialog = LoginDialog(self.main_window)
self.login_dialog.exec_()
if self.login_dialog.result():
username = str(self.login_dialog.username_line.text())
password = str(self.login_dialog.password_line.text())
if username and password:
remember = self.login_dialog.remember_checkbox.isChecked()
self.handleLoginData(username, password, remember)
def handleLoginData(self, username, password, remember=False):
"""Try to load the grades by using the provided login credentials.
On failure, an error popup is displayed. On success a loading progress
bar and after that a table is shown.
If "remember" is True, then the login data is saved.
"""
self.main_window.setDisabled(True)
QtGui.QApplication.processEvents()
QtGui.QApplication.processEvents()
progress = 0
try:
iterator = self.grades_model.getFromPSSOIterator(username, password)
for step in iterator:
self.main_window.showProgress(progress, step)
# getFromPSSOIterator defines 8 steps, but 1st is at 0
progress += 100.0/7
QtGui.QApplication.processEvents()
except (ConnectionError, ServiceUnavailableError, ParsingError) as e:
QtGui.QMessageBox.critical(self.main_window,
e.title, e.message)
return
except LoginError as e:
self.clearLoginData(username)
QtGui.QMessageBox.critical(self.main_window,
e.title, e.message)
return
finally:
self.main_window.setEnabled(True)
self.main_window.showProgress(-1)
self.main_window.showTable()
self.main_window.setEnabled(True)
if remember:
self.saveLoginData(username, password)
def saveLoginData(self, username, password):
assert username and password
self.settings.setValue("username", username)
keyring.set_password("PSSO", username, password)
def getLoginData(self):
"""Try to retrieve previously saved username and password. Returns
a tuple of two empty strings on failure.
"""
username = str(self.settings.value("username").toString() or "")
try:
password = keyring.get_password("PSSO", username) or ""
except IOError:
return "", ""
return username, password
def clearLoginData(self, username=None):
"""Remove username and password settings. If a username is given,
its password will be removed. If there is a saved username,
it will also get removed alongside with the corresponding password.
"""
username2 = str(self.settings.value("username").toString() or "")
try:
keyring.delete_password("PSSO", username)
except:
pass
try:
keyring.delete_password("PSSO", username2)
except:
pass
self.settings.remove("username")
def tryAutoDownloadFromPSSO(self):
u, p = self.getLoginData()
if u and p:
self.handleLoginData(u, p)
def openFileDialog(self):
ofd = OpenFileDialog(self.main_window)
accepted = ofd.exec_()
if accepted and ofd.html_file:
try:
html = codecs.open(ofd.html_file, encoding='utf-8')
except IOError:
QtGui.QMessageBox.warning(self.main_window, "File not found",
"Sorry, but there seems to be no file called {}.".format(
ofd.html_file))
return
self.grades_model.getFromHTML(html)
self.main_window.showTable()
def openDonationDialog(self):
dp = DonationDialog(self.main_window)
dp.exec_()
def updateStats(self):
self.main_window.num_of_grades.setText(str(
self.grades_model.getNumOfGrades()))
self.main_window.num_of_credits.setText(str(
self.grades_model.getNumOfCredits()))
self.main_window.average_grade.setText(str(
self.grades_model.getAverageGrade()))
