class OpenLP(OpenLPMixin, QtGui.QApplication):
"""
The core application class. This class inherits from Qt's QApplication
class in order to provide the core of the application.
"""
args = []
def exec_(self):
"""
Override exec method to allow the shared memory to be released on exit
"""
self.is_event_loop_active = True
result = QtGui.QApplication.exec_()
self.shared_memory.detach()
return result
def run(self, args):
"""
Run the OpenLP application.
:param args: Some Args
"""
self.is_event_loop_active = False
# On Windows, the args passed into the constructor are ignored. Not very handy, so set the ones we want to use.
# On Linux and FreeBSD, in order to set the WM_CLASS property for X11, we pass "OpenLP" in as a command line
# argument. This interferes with files being passed in as command line arguments, so we remove it from the list.
if 'OpenLP' in args:
args.remove('OpenLP')
self.args.extend(args)
# Decide how many screens we have and their size
screens = ScreenList.create(self.desktop())
# First time checks in settings
has_run_wizard = Settings().value('core/has run wizard')
if not has_run_wizard:
ftw = FirstTimeForm()
ftw.initialize(screens)
if ftw.exec_() == QtGui.QDialog.Accepted:
Settings().setValue('core/has run wizard', True)
elif ftw.was_cancelled:
QtCore.QCoreApplication.exit()
sys.exit()
# Correct stylesheet bugs
application_stylesheet = ''
if not Settings().value('advanced/alternate rows'):
base_color = self.palette().color(QtGui.QPalette.Active, QtGui.QPalette.Base)
alternate_rows_repair_stylesheet = \
'QTableWidget, QListWidget, QTreeWidget {alternate-background-color: ' + base_color.name() + ';}\n'
application_stylesheet += alternate_rows_repair_stylesheet
if is_win():
application_stylesheet += WIN_REPAIR_STYLESHEET
if application_stylesheet:
self.setStyleSheet(application_stylesheet)
show_splash = Settings().value('core/show splash')
if show_splash:
self.splash = SplashScreen()
self.splash.show()
# make sure Qt really display the splash screen
self.processEvents()
# Check if OpenLP has been upgrade and if a backup of data should be created
self.backup_on_upgrade(has_run_wizard)
# start the main app window
self.main_window = MainWindow()
Registry().execute('bootstrap_initialise')
Registry().execute('bootstrap_post_set_up')
Registry().initialise = False
self.main_window.show()
if show_splash:
# now kill the splashscreen
self.splash.finish(self.main_window)
log.debug('Splashscreen closed')
# make sure Qt really display the splash screen
self.processEvents()
self.main_window.repaint()
self.processEvents()
if not has_run_wizard:
self.main_window.first_time()
update_check = Settings().value('core/update check')
#if update_check:
# version = VersionThread(self.main_window)
# version.start()
self.main_window.is_display_blank()
self.main_window.app_startup()
return self.exec_()
def is_already_running(self):
"""
Look to see if OpenLP is already running and ask if a 2nd instance is to be started.
"""
self.shared_memory = QtCore.QSharedMemory('OpenLP')
if self.shared_memory.attach():
status = QtGui.QMessageBox.critical(None, UiStrings().Error, UiStrings().OpenLPStart,
QtGui.QMessageBox.StandardButtons(QtGui.QMessageBox.Yes |
QtGui.QMessageBox.No))
if status == QtGui.QMessageBox.No:
return True
return False
else:
self.shared_memory.create(1)
return False
def hook_exception(self, exc_type, value, traceback):
"""
Add an exception hook so that any uncaught exceptions are displayed in this window rather than somewhere where
users cannot see it and cannot report when we encounter these problems.
:param exc_type: The class of exception.
:param value: The actual exception object.
:param traceback: A traceback object with the details of where the exception occurred.
"""
# We can't log.exception here because the last exception no longer exists, we're actually busy handling it.
log.critical(''.join(format_exception(exc_type, value, traceback)))
if not hasattr(self, 'exception_form'):
self.exception_form = ExceptionForm()
self.exception_form.exception_text_edit.setPlainText(''.join(format_exception(exc_type, value, traceback)))
self.set_normal_cursor()
self.exception_form.exec_()
def backup_on_upgrade(self, has_run_wizard):
"""
Check if OpenLP has been upgraded, and ask if a backup of data should be made
:param has_run_wizard: OpenLP has been run before
"""
data_version = Settings().value('core/application version')
openlp_version = get_application_version()['version']
# New installation, no need to create backup
if not has_run_wizard:
Settings().setValue('core/application version', openlp_version)
# If data_version is different from the current version ask if we should backup the data folder
elif data_version != openlp_version:
if QtGui.QMessageBox.question(None, translate('OpenLP', 'Backup'),
translate('OpenLP', 'OpenLP has been upgraded, '
'do you want to create a backup of OpenLPs data folder?'),
QtGui.QMessageBox.Yes | QtGui.QMessageBox.No,
QtGui.QMessageBox.Yes) == QtGui.QMessageBox.Yes:
# Create copy of data folder
data_folder_path = AppLocation.get_data_path()
timestamp = time.strftime("%Y%m%d-%H%M%S")
data_folder_backup_path = data_folder_path + '-' + timestamp
try:
shutil.copytree(data_folder_path, data_folder_backup_path)
except OSError:
QtGui.QMessageBox.warning(None, translate('OpenLP', 'Backup'),
translate('OpenLP', 'Backup of the data folder failed!'))
return
QtGui.QMessageBox.information(None, translate('OpenLP', 'Backup'),
translate('OpenLP', 'A backup of the data folder has been created at %s')
% data_folder_backup_path)
# Update the version in the settings
Settings().setValue('core/application version', openlp_version)
def process_events(self):
"""
Wrapper to make ProcessEvents visible and named correctly
"""
self.processEvents()
def set_busy_cursor(self):
"""
Sets the Busy Cursor for the Application
"""
self.setOverrideCursor(QtCore.Qt.BusyCursor)
self.processEvents()
def set_normal_cursor(self):
"""
Sets the Normal Cursor for the Application
"""
self.restoreOverrideCursor()
self.processEvents()
def event(self, event):
"""
Enables platform specific event handling i.e. direct file opening on OS X
:param event: The event
"""
if event.type() == QtCore.QEvent.FileOpen:
file_name = event.file()
log.debug('Got open file event for %s!', file_name)
self.args.insert(0, file_name)
return True
# Mac OS X should restore app window when user clicked on the OpenLP icon
# in the Dock bar. However, OpenLP consists of multiple windows and this
# does not work. This workaround fixes that.
# The main OpenLP window is restored when it was previously minimized.
elif event.type() == QtCore.QEvent.ApplicationActivate:
if is_macosx() and hasattr(self, 'main_window'):
if self.main_window.isMinimized():
# Copied from QWidget.setWindowState() docs on how to restore and activate a minimized window
# while preserving its maximized and/or full-screen state.
self.main_window.setWindowState(self.main_window.windowState() & ~QtCore.Qt.WindowMinimized |
QtCore.Qt.WindowActive)
return True
return QtGui.QApplication.event(self, event)
class OpenLP(QtWidgets.QApplication):
"""
The core application class. This class inherits from Qt's QApplication
class in order to provide the core of the application.
"""
args = []
worker_threads = {}
def exec(self):
"""
Override exec method to allow the shared memory to be released on exit
"""
self.is_event_loop_active = True
result = QtWidgets.QApplication.exec()
self.server.close_server()
return result
def run(self, args):
"""
Run the OpenLP application.
:param args: Some Args
"""
self.is_event_loop_active = False
# On Windows, the args passed into the constructor are ignored. Not very handy, so set the ones we want to use.
# On Linux and FreeBSD, in order to set the WM_CLASS property for X11, we pass "OpenLP" in as a command line
# argument. This interferes with files being passed in as command line arguments, so we remove it from the list.
if 'OpenLP' in args:
args.remove('OpenLP')
self.args.extend(args)
# Decide how many screens we have and their size
screens = ScreenList.create(self.desktop())
# First time checks in settings
has_run_wizard = Settings().value('core/has run wizard')
if not has_run_wizard:
ftw = FirstTimeForm()
ftw.initialize(screens)
if ftw.exec() == QtWidgets.QDialog.Accepted:
Settings().setValue('core/has run wizard', True)
elif ftw.was_cancelled:
QtCore.QCoreApplication.exit()
sys.exit()
# Correct stylesheet bugs
application_stylesheet = get_application_stylesheet()
if application_stylesheet:
self.setStyleSheet(application_stylesheet)
can_show_splash = Settings().value('core/show splash')
if can_show_splash:
self.splash = SplashScreen()
self.splash.show()
# make sure Qt really display the splash screen
self.processEvents()
# Check if OpenLP has been upgrade and if a backup of data should be created
self.backup_on_upgrade(has_run_wizard, can_show_splash)
# start the main app window
self.main_window = MainWindow()
Registry().execute('bootstrap_initialise')
Registry().execute('bootstrap_post_set_up')
Registry().initialise = False
self.main_window.show()
if can_show_splash:
# now kill the splashscreen
log.debug('Splashscreen closing')
self.splash.close()
log.debug('Splashscreen closed')
# make sure Qt really display the splash screen
self.processEvents()
self.main_window.repaint()
self.processEvents()
if not has_run_wizard:
self.main_window.first_time()
if Settings().value('core/update check'):
check_for_update(self.main_window)
self.main_window.is_display_blank()
self.main_window.app_startup()
return self.exec()
@staticmethod
def is_already_running():
"""
Tell the user there is a 2nd instance running.
"""
QtWidgets.QMessageBox.critical(
None,
UiStrings().Error,
UiStrings().OpenLPStart,
QtWidgets.QMessageBox.StandardButtons(QtWidgets.QMessageBox.Ok))
@staticmethod
def is_data_path_missing():
"""
Check if the data folder path exists.
"""
data_folder_path = AppLocation.get_data_path()
if not data_folder_path.exists():
log.critical('Database was not found in: %s', data_folder_path)
status = QtWidgets.QMessageBox.critical(
None, translate('OpenLP', 'Data Directory Error'),
translate(
'OpenLP',
'OpenLP data folder was not found in:\n\n{path}\n\nThe location of the data folder '
'was previously changed from the OpenLP\'s default location. If the data was '
'stored on removable device, that device needs to be made available.\n\nYou may '
'reset the data location back to the default location, or you can try to make the '
'current location available.\n\nDo you want to reset to the default data location? '
'If not, OpenLP will be closed so you can try to fix the the problem.'
).format(path=data_folder_path),
QtWidgets.QMessageBox.StandardButtons(
QtWidgets.QMessageBox.Yes | QtWidgets.QMessageBox.No),
QtWidgets.QMessageBox.No)
if status == QtWidgets.QMessageBox.No:
# If answer was "No", return "True", it will shutdown OpenLP in def main
log.info('User requested termination')
return True
# If answer was "Yes", remove the custom data path thus resetting the default location.
Settings().remove('advanced/data path')
log.info(
'Database location has been reset to the default settings.')
return False
def hook_exception(self, exc_type, value, traceback):
"""
Add an exception hook so that any uncaught exceptions are displayed in this window rather than somewhere where
users cannot see it and cannot report when we encounter these problems.
:param exc_type: The class of exception.
:param value: The actual exception object.
:param traceback: A traceback object with the details of where the exception occurred.
"""
# We can't log.exception here because the last exception no longer exists, we're actually busy handling it.
log.critical(''.join(format_exception(exc_type, value, traceback)))
if not hasattr(self, 'exception_form'):
self.exception_form = ExceptionForm()
self.exception_form.exception_text_edit.setPlainText(''.join(
format_exception(exc_type, value, traceback)))
self.set_normal_cursor()
is_splash_visible = False
if hasattr(self, 'splash') and self.splash.isVisible():
is_splash_visible = True
self.splash.hide()
self.exception_form.exec()
if is_splash_visible:
self.splash.show()
def backup_on_upgrade(self, has_run_wizard, can_show_splash):
"""
Check if OpenLP has been upgraded, and ask if a backup of data should be made
:param has_run_wizard: OpenLP has been run before
:param can_show_splash: Should OpenLP show the splash screen
"""
data_version = Settings().value('core/application version')
openlp_version = get_version()['version']
# New installation, no need to create backup
if not has_run_wizard:
Settings().setValue('core/application version', openlp_version)
# If data_version is different from the current version ask if we should backup the data folder
elif data_version != openlp_version:
if can_show_splash and self.splash.isVisible():
self.splash.hide()
if QtWidgets.QMessageBox.question(
None,
translate('OpenLP', 'Backup'),
translate(
'OpenLP',
'OpenLP has been upgraded, do you want to create\n'
'a backup of the old data folder?'),
defaultButton=QtWidgets.QMessageBox.Yes
) == QtWidgets.QMessageBox.Yes:
# Create copy of data folder
data_folder_path = AppLocation.get_data_path()
timestamp = time.strftime("%Y%m%d-%H%M%S")
data_folder_backup_path = data_folder_path.with_name(
data_folder_path.name + '-' + timestamp)
try:
copytree(data_folder_path, data_folder_backup_path)
except OSError:
QtWidgets.QMessageBox.warning(
None, translate('OpenLP', 'Backup'),
translate('OpenLP',
'Backup of the data folder failed!'))
return
message = translate(
'OpenLP',
'A backup of the data folder has been created at:\n\n'
'{text}').format(text=data_folder_backup_path)
QtWidgets.QMessageBox.information(
None, translate('OpenLP', 'Backup'), message)
# Update the version in the settings
Settings().setValue('core/application version', openlp_version)
if can_show_splash:
self.splash.show()
def process_events(self):
"""
Wrapper to make ProcessEvents visible and named correctly
"""
self.processEvents()
def set_busy_cursor(self):
"""
Sets the Busy Cursor for the Application
"""
self.setOverrideCursor(QtCore.Qt.BusyCursor)
self.processEvents()
def set_normal_cursor(self):
"""
Sets the Normal Cursor for the Application
"""
self.restoreOverrideCursor()
self.processEvents()
def event(self, event):
"""
Enables platform specific event handling i.e. direct file opening on OS X
:param event: The event
"""
if event.type() == QtCore.QEvent.FileOpen:
file_name = event.file()
log.debug('Got open file event for {name}!'.format(name=file_name))
self.args.insert(0, file_name)
return True
# Mac OS X should restore app window when user clicked on the OpenLP icon
# in the Dock bar. However, OpenLP consists of multiple windows and this
# does not work. This workaround fixes that.
# The main OpenLP window is restored when it was previously minimized.
elif event.type() == QtCore.QEvent.ApplicationActivate:
if is_macosx() and hasattr(self, 'main_window'):
if self.main_window.isMinimized():
# Copied from QWidget.setWindowState() docs on how to restore and activate a minimized window
# while preserving its maximized and/or full-screen state.
self.main_window.setWindowState(
self.main_window.windowState()
& ~QtCore.Qt.WindowMinimized | QtCore.Qt.WindowActive)
return True
return QtWidgets.QApplication.event(self, event)
class OpenLP(OpenLPMixin, QtGui.QApplication):
"""
The core application class. This class inherits from Qt's QApplication
class in order to provide the core of the application.
"""
args = []
def exec_(self):
"""
Override exec method to allow the shared memory to be released on exit
"""
self.is_event_loop_active = True
result = QtGui.QApplication.exec_()
self.shared_memory.detach()
return result
def run(self, args):
"""
Run the OpenLP application.
:param args: Some Args
"""
self.is_event_loop_active = False
# On Windows, the args passed into the constructor are ignored. Not very handy, so set the ones we want to use.
# On Linux and FreeBSD, in order to set the WM_CLASS property for X11, we pass "OpenLP" in as a command line
# argument. This interferes with files being passed in as command line arguments, so we remove it from the list.
if 'OpenLP' in args:
args.remove('OpenLP')
self.args.extend(args)
# Decide how many screens we have and their size
screens = ScreenList.create(self.desktop())
# First time checks in settings
has_run_wizard = Settings().value('core/has run wizard')
if not has_run_wizard:
ftw = FirstTimeForm()
ftw.initialize(screens)
if ftw.exec_() == QtGui.QDialog.Accepted:
Settings().setValue('core/has run wizard', True)
elif ftw.was_cancelled:
QtCore.QCoreApplication.exit()
sys.exit()
# Correct stylesheet bugs
application_stylesheet = ''
if not Settings().value('advanced/alternate rows'):
base_color = self.palette().color(QtGui.QPalette.Active,
QtGui.QPalette.Base)
alternate_rows_repair_stylesheet = \
'QTableWidget, QListWidget, QTreeWidget {alternate-background-color: ' + base_color.name() + ';}\n'
application_stylesheet += alternate_rows_repair_stylesheet
if is_win():
application_stylesheet += WIN_REPAIR_STYLESHEET
if application_stylesheet:
self.setStyleSheet(application_stylesheet)
show_splash = Settings().value('core/show splash')
if show_splash:
self.splash = SplashScreen()
self.splash.show()
# make sure Qt really display the splash screen
self.processEvents()
# Check if OpenLP has been upgrade and if a backup of data should be created
self.backup_on_upgrade(has_run_wizard)
# start the main app window
self.main_window = MainWindow()
Registry().execute('bootstrap_initialise')
Registry().execute('bootstrap_post_set_up')
Registry().initialise = False
self.main_window.show()
if show_splash:
# now kill the splashscreen
self.splash.finish(self.main_window)
log.debug('Splashscreen closed')
# make sure Qt really display the splash screen
self.processEvents()
self.main_window.repaint()
self.processEvents()
if not has_run_wizard:
self.main_window.first_time()
update_check = Settings().value('core/update check')
#if update_check:
# version = VersionThread(self.main_window)
# version.start()
self.main_window.is_display_blank()
self.main_window.app_startup()
return self.exec_()
def is_already_running(self):
"""
Look to see if OpenLP is already running and ask if a 2nd instance is to be started.
"""
self.shared_memory = QtCore.QSharedMemory('OpenLP')
if self.shared_memory.attach():
status = QtGui.QMessageBox.critical(
None,
UiStrings().Error,
UiStrings().OpenLPStart,
QtGui.QMessageBox.StandardButtons(QtGui.QMessageBox.Yes
| QtGui.QMessageBox.No))
if status == QtGui.QMessageBox.No:
return True
return False
else:
self.shared_memory.create(1)
return False
def hook_exception(self, exc_type, value, traceback):
"""
Add an exception hook so that any uncaught exceptions are displayed in this window rather than somewhere where
users cannot see it and cannot report when we encounter these problems.
:param exc_type: The class of exception.
:param value: The actual exception object.
:param traceback: A traceback object with the details of where the exception occurred.
"""
# We can't log.exception here because the last exception no longer exists, we're actually busy handling it.
log.critical(''.join(format_exception(exc_type, value, traceback)))
if not hasattr(self, 'exception_form'):
self.exception_form = ExceptionForm()
self.exception_form.exception_text_edit.setPlainText(''.join(
format_exception(exc_type, value, traceback)))
self.set_normal_cursor()
self.exception_form.exec_()
def backup_on_upgrade(self, has_run_wizard):
"""
Check if OpenLP has been upgraded, and ask if a backup of data should be made
:param has_run_wizard: OpenLP has been run before
"""
data_version = Settings().value('core/application version')
openlp_version = get_application_version()['version']
# New installation, no need to create backup
if not has_run_wizard:
Settings().setValue('core/application version', openlp_version)
# If data_version is different from the current version ask if we should backup the data folder
elif data_version != openlp_version:
if QtGui.QMessageBox.question(
None, translate('OpenLP', 'Backup'),
translate(
'OpenLP', 'OpenLP has been upgraded, '
'do you want to create a backup of OpenLPs data folder?'
), QtGui.QMessageBox.Yes | QtGui.QMessageBox.No,
QtGui.QMessageBox.Yes) == QtGui.QMessageBox.Yes:
# Create copy of data folder
data_folder_path = AppLocation.get_data_path()
timestamp = time.strftime("%Y%m%d-%H%M%S")
data_folder_backup_path = data_folder_path + '-' + timestamp
try:
shutil.copytree(data_folder_path, data_folder_backup_path)
except OSError:
QtGui.QMessageBox.warning(
None, translate('OpenLP', 'Backup'),
translate('OpenLP',
'Backup of the data folder failed!'))
return
QtGui.QMessageBox.information(
None, translate('OpenLP', 'Backup'),
translate(
'OpenLP',
'A backup of the data folder has been created at %s') %
data_folder_backup_path)
# Update the version in the settings
Settings().setValue('core/application version', openlp_version)
def process_events(self):
"""
Wrapper to make ProcessEvents visible and named correctly
"""
self.processEvents()
def set_busy_cursor(self):
"""
Sets the Busy Cursor for the Application
"""
self.setOverrideCursor(QtCore.Qt.BusyCursor)
self.processEvents()
def set_normal_cursor(self):
"""
Sets the Normal Cursor for the Application
"""
self.restoreOverrideCursor()
self.processEvents()
def event(self, event):
"""
Enables platform specific event handling i.e. direct file opening on OS X
:param event: The event
"""
if event.type() == QtCore.QEvent.FileOpen:
file_name = event.file()
log.debug('Got open file event for %s!', file_name)
self.args.insert(0, file_name)
return True
# Mac OS X should restore app window when user clicked on the OpenLP icon
# in the Dock bar. However, OpenLP consists of multiple windows and this
# does not work. This workaround fixes that.
# The main OpenLP window is restored when it was previously minimized.
elif event.type() == QtCore.QEvent.ApplicationActivate:
if is_macosx() and hasattr(self, 'main_window'):
if self.main_window.isMinimized():
# Copied from QWidget.setWindowState() docs on how to restore and activate a minimized window
# while preserving its maximized and/or full-screen state.
self.main_window.setWindowState(
self.main_window.windowState()
& ~QtCore.Qt.WindowMinimized | QtCore.Qt.WindowActive)
return True
return QtGui.QApplication.event(self, event)