class Application(QObject):
"""Class to implement a Qt Application."""
instance = None
_logger = _module_logger.getChild('Application')
##############################################
# Fixme: Singleton
@classmethod
def create(cls, *args, **kwargs):
if cls.instance is not None:
raise NameError('Instance exists')
cls.instance = cls(*args, **kwargs)
return cls.instance
##############################################
def __init__(self):
super().__init__()
QtCore.qInstallMessageHandler(self._message_handler)
self._parse_arguments()
self._appplication = QGuiApplication(sys.argv)
self._engine = QQmlApplicationEngine()
self._qml_application = QmlApplication(self)
logo_path = ':/icons/logo-256.png'
self._appplication.setWindowIcon(QIcon(logo_path))
self._platform = QtPlatform()
# self._logger.info('\n' + str(self._platform))
self._scene = None
# self._load_translation()
self._register_qml_types()
self._set_context_properties()
self._load_qml_main()
# self._run_before_event_loop()
QTimer.singleShot(0, self._post_init)
# self._view = QQuickView()
# self._view.setResizeMode(QQuickView.SizeRootObjectToView)
# self._view.setSource(qml_url)
##############################################
@property
def args(self):
return self._args
@property
def qml_application(self):
return self._qml_application
@property
def platform(self):
return self._platform
##############################################
def _print_critical_message(self, message):
print('\nCritical Error on {}'.format(datetime.datetime.now()))
print('-' * 80)
print(message)
# Fixme: don't print ???
# self._logger.critical(message)
# Fixme: useless
sys.stdout.flush()
sys.stderr.flush()
##############################################
def _message_handler(self, msg_type, context, msg):
if msg_type == QtCore.QtDebugMsg:
method = self._logger.debug
elif msg_type == QtCore.QtInfoMsg:
method = self._logger.info
elif msg_type == QtCore.QtWarningMsg:
method = self._logger.warning
# elif msg_type == QtCore.QtCriticalMsg:
# method = self._logger.critical
# elif msg_type == QtCore.QtFatalMsg:
# method = self._logger.critical
elif msg_type in (QtCore.QtCriticalMsg, QtCore.QtFatalMsg):
# method = self._logger.critical
method = None
# local_msg = msg.toLocal8Bit()
# localMsg.constData()
context_file = context.file
if context_file is not None:
file_path = Path(context_file).name
else:
file_path = ''
message = '{1} {3} — {0}'.format(msg, file_path, context.line,
context.function)
if method is not None:
method(message)
else:
self._print_critical_message(message)
##############################################
def _on_critical_exception(self, exception):
message = str(exception) + '\n' + traceback.format_exc()
self._print_critical_message(message)
sys.exit(1)
##############################################
@classmethod
def setup_gui_application(cls):
# QGuiApplication.setApplicationName(APPLICATION_NAME)
# QGuiApplication.setOrganizationName(ORGANISATION_NAME)
QGuiApplication.setAttribute(Qt.AA_EnableHighDpiScaling)
# QQuickStyle.setStyle('Material')
##############################################
def _parse_arguments(self):
parser = argparse.ArgumentParser(description='Patro', )
# parser.add_argument(
# '--version',
# action='store_true', default=False,
# help="show version and exit",
# )
parser.add_argument(
'--user-script',
action=PathAction,
default=None,
help='user script to execute',
)
parser.add_argument(
'--user-script-args',
default='',
help="user script args (don't forget to quote)",
)
self._args = parser.parse_args()
##############################################
# def _load_translationt(self):
# locale = QLocale()
# if m_translator.load(locale, '...', '.', ':/translations', '.qm'):
# m_application.installTranslator(m_translator)
# else:
# raise "No translator for locale" locale.name()
##############################################
def _register_qml_types(self):
qmlRegisterUncreatableType(QmlApplication, 'Patro', 1, 0,
'QmlApplication',
'Cannot create QmlApplication')
qmlRegisterUncreatableType(QtScene, 'Patro', 1, 0, 'QtScene',
'Cannot create QtScene')
# qmlRegisterType(QmlApplication, 'Patro', 1, 0, 'QmlApplication')
# qmlRegisterType(QtScene, 'Patro', 1, 0, 'QtScene')
qmlRegisterType(QtQuickPaintedSceneItem, 'Patro', 1, 0,
'PaintedSceneItem')
##############################################
def _set_context_properties(self):
context = self._engine.rootContext()
context.setContextProperty('application', self._qml_application)
##############################################
def _load_qml_main(self):
# self._engine.addImportPath('qrc:///qml')
qml_path = Path(__file__).parent.joinpath('qml', 'main.qml')
self._qml_url = QUrl.fromLocalFile(str(qml_path))
# QUrl('qrc:/qml/main.qml')
self._engine.objectCreated.connect(self._check_qml_is_loaded)
self._engine.load(self._qml_url)
##############################################
def _check_qml_is_loaded(self, obj, url):
# See https://bugreports.qt.io/browse/QTBUG-39469
if (obj is None and url == self._qml_url):
sys.exit(-1)
##############################################
def exec_(self):
# self._view.show()
sys.exit(self._appplication.exec_())
##############################################
def _post_init(self):
# Fixme: ui refresh ???
self._logger.info('post init')
if self._args.user_script is not None:
self.execute_user_script(self._args.user_script)
##############################################
def execute_user_script(self, script_path):
"""Execute an user script provided by file *script_path* in a context where is defined a
variable *application* that is a reference to the application instance.
"""
script_path = Path(script_path).absolute()
self._logger.info('Execute user script:\n {}'.format(script_path))
try:
source = open(script_path).read()
except FileNotFoundError:
self._logger.info('File {} not found'.format(script_path))
sys.exit(1)
try:
bytecode = compile(source, script_path, 'exec')
except SyntaxError as exception:
self._on_critical_exception(exception)
try:
exec(bytecode, {'application': self})
except Exception as exception:
self._on_critical_exception(exception)
self._logger.info('User script done')
class Application(QObject):
"""Class to implement a Qt Application."""
instance = None
_logger = _module_logger.getChild('Application')
scanner_ready = Signal()
##############################################
# Fixme: Singleton
@classmethod
def create(cls, *args, **kwargs):
if cls.instance is not None:
raise NameError('Instance exists')
cls.instance = cls(*args, **kwargs)
return cls.instance
##############################################
def __init__(self):
self._logger.info('Ctor')
super().__init__()
QtCore.qInstallMessageHandler(self._message_handler)
self._parse_arguments()
self._library = None
self._book = None
# Fixme: must be defined before QML
if BookLibrary.is_library(self._args.path):
self.load_library(self._args.path)
else:
self.load_book(self._args.path)
# For Qt Labs Platform native widgets
# self._application = QGuiApplication(sys.argv)
# use QCoreApplication::instance() to get instance
self._application = QApplication(sys.argv)
self._application.main = self
self._init_application()
self._engine = QQmlApplicationEngine()
self._qml_application = QmlApplication(self)
self._application.qml_main = self._qml_application
self._platform = QtPlatform()
# self._logger.info('\n' + str(self._platform))
self._load_translation()
self._register_qml_types()
self._set_context_properties()
self._load_qml_main()
# self._run_before_event_loop()
self._thread_pool = QtCore.QThreadPool()
self._logger.info("Multithreading with maximum {} threads".format(
self._thread_pool.maxThreadCount()))
self._scanner = None
self._scanner_image_provider = ScannerImageProvider()
self._engine.addImageProvider('scanner_image',
self._scanner_image_provider)
QTimer.singleShot(0, self._post_init)
# self._view = QQuickView()
# self._view.setResizeMode(QQuickView.SizeRootObjectToView)
# self._view.setSource(qml_url)
##############################################
@property
def args(self):
return self._args
@property
def platform(self):
return self._platform
@property
def settings(self):
return self._settings
@property
def qml_application(self):
return self._qml_application
@property
def thread_pool(self):
return self._thread_pool
@property
def scanner_image_provider(self):
return self._scanner_image_provider
@property
def scanner(self):
return self.init_scanner()
@property
def book(self):
return self._book
# @property
# def book_path(self):
# return self._book.path
@property
def library(self):
return self._library
##############################################
def _print_critical_message(self, message):
# print('\nCritical Error on {}'.format(datetime.datetime.now()))
# print('-'*80)
# print(message)
self._logger.critical(message)
##############################################
def _message_handler(self, msg_type, context, msg):
if msg_type == QtCore.QtDebugMsg:
method = self._logger.debug
elif msg_type == QtCore.QtInfoMsg:
method = self._logger.info
elif msg_type == QtCore.QtWarningMsg:
method = self._logger.warning
elif msg_type in (QtCore.QtCriticalMsg, QtCore.QtFatalMsg):
method = self._logger.critical
# method = None
# local_msg = msg.toLocal8Bit()
# localMsg.constData()
context_file = context.file
if context_file is not None:
file_path = Path(context_file).name
else:
file_path = ''
message = '{1} {3} — {0}'.format(msg, file_path, context.line,
context.function)
if method is not None:
method(message)
else:
self._print_critical_message(message)
##############################################
def _on_critical_exception(self, exception):
message = str(exception) + '\n' + traceback.format_exc()
self._print_critical_message(message)
self._qml_application.notify_error(exception)
# sys.exit(1)
##############################################
def _init_application(self):
self._application.setOrganizationName(
ApplicationMetadata.organisation_name)
self._application.setOrganizationDomain(
ApplicationMetadata.organisation_domain)
self._application.setApplicationName(ApplicationMetadata.name)
self._application.setApplicationDisplayName(
ApplicationMetadata.display_name)
self._application.setApplicationVersion(ApplicationMetadata.version)
logo_path = ':/icons/logo/logo-256.png'
self._application.setWindowIcon(QIcon(logo_path))
QIcon.setThemeName('material')
self._settings = ApplicationSettings()
##############################################
@classmethod
def setup_gui_application(self):
# https://bugreports.qt.io/browse/QTBUG-55167
# for path in (
# 'qt.qpa.xcb.xcberror',
# ):
# QtCore.QLoggingCategory.setFilterRules('{} = false'.format(path))
QGuiApplication.setAttribute(Qt.AA_EnableHighDpiScaling)
# QQuickStyle.setStyle('Material')
##############################################
def _parse_arguments(self):
parser = argparse.ArgumentParser(description='BookBrowser', )
# parser.add_argument(
# '--version',
# action='store_true', default=False,
# help="show version and exit",
# )
# Fixme: should be able to start application without !!!
parser.add_argument(
'path',
metavar='PATH',
action=PathAction,
help='book or library path',
)
parser.add_argument(
'--dont-translate',
action='store_true',
default=False,
help="Don't translate application",
)
parser.add_argument(
'--watcher',
action='store_true',
default=False,
help='start watcher',
)
parser.add_argument(
'--fake-scanner',
action='store_true',
default=False,
help='use a fake scanner',
)
parser.add_argument(
'--user-script',
action=PathAction,
default=None,
help='user script to execute',
)
parser.add_argument(
'--user-script-args',
default='',
help="user script args (don't forget to quote)",
)
self._args = parser.parse_args()
##############################################
def _load_translation(self):
if self._args.dont_translate:
return
# Fixme: ConfigInstall
# directory = ':/translations'
directory = str(Path(__file__).parent.joinpath('rcc', 'translations'))
locale = QtCore.QLocale()
self._translator = QtCore.QTranslator()
if self._translator.load(locale, 'book-browser', '.', directory,
'.qm'):
self._application.installTranslator(self._translator)
else:
raise NameError('No translator for locale {}'.format(
locale.name()))
##############################################
def _register_qml_types(self):
qmlRegisterType(KeySequenceEditor, 'BookBrowser', 1, 0,
'KeySequenceEditor')
qmlRegisterUncreatableType(Shortcut, 'BookBrowser', 1, 0, 'Shortcut',
'Cannot create Shortcut')
qmlRegisterUncreatableType(ApplicationSettings, 'BookBrowser', 1, 0,
'ApplicationSettings',
'Cannot create ApplicationSettings')
qmlRegisterUncreatableType(QmlApplication, 'BookBrowser', 1, 0,
'QmlApplication',
'Cannot create QmlApplication')
qmlRegisterUncreatableType(QmlBookCover, 'BookBrowser', 1, 0,
'QmlBookCover',
'Cannot create QmlBookCover')
qmlRegisterUncreatableType(QmlBookLibrary, 'BookBrowser', 1, 0,
'QmlBookLibrary', 'Cannot create QmlBookLi')
qmlRegisterUncreatableType(QmlBook, 'BookBrowser', 1, 0, 'QmlBook',
'Cannot create QmlBook')
qmlRegisterUncreatableType(QmlBookPage, 'BookBrowser', 1, 0,
'QmlBookPage', 'Cannot create QmlBookPage')
qmlRegisterUncreatableType(QmlBookMetadata, 'BookBrowser', 1, 0,
'QmlBookMetadata',
'Cannot create QmlBookMetadata')
qmlRegisterUncreatableType(QmlScannerConfig, 'BookBrowser', 1, 0,
'QmlScannerConfig',
'Cannot create QmlScannerConfig')
qmlRegisterUncreatableType(QmlScanner, 'BookBrowser', 1, 0,
'QmlScanner', 'Cannot create QmlScanner')
##############################################
def _set_context_properties(self):
context = self._engine.rootContext()
context.setContextProperty('application', self._qml_application)
context.setContextProperty('application_settings', self._settings)
##############################################
def _load_qml_main(self):
self._logger.info('Load QML...')
qml_path = Path(__file__).parent.joinpath('qml')
# qml_path = 'qrc:///qml'
self._engine.addImportPath(str(qml_path))
main_qml_path = qml_path.joinpath('main.qml')
self._qml_url = QUrl.fromLocalFile(str(main_qml_path))
# QUrl('qrc:/qml/main.qml')
self._engine.objectCreated.connect(self._check_qml_is_loaded)
self._engine.load(self._qml_url)
self._logger.info('QML loaded')
##############################################
def _check_qml_is_loaded(self, obj, url):
# See https://bugreports.qt.io/browse/QTBUG-39469
if (obj is None and url == self._qml_url):
sys.exit(-1)
##############################################
def exec_(self):
# self._view.show()
self._logger.info('Start event loop')
sys.exit(self._application.exec_())
##############################################
def _post_init(self):
# Fixme: ui refresh ???
self._logger.info('post Init...')
if self._args.watcher:
self._logger.info('Start watcher')
self._book.start_watcher() # QtCore.QFileSystemWatcher(self)
if self._args.user_script is not None:
self.execute_user_script(self._args.user_script)
self._logger.info('Post Init Done')
##############################################
def execute_user_script(self, script_path):
"""Execute an user script provided by file *script_path* in a context where is defined a
variable *application* that is a reference to the application instance.
"""
script_path = Path(script_path).absolute()
self._logger.info('Execute user script:\n {}'.format(script_path))
try:
source = open(script_path).read()
except FileNotFoundError:
self._logger.info('File {} not found'.format(script_path))
sys.exit(1)
try:
bytecode = compile(source, script_path, 'exec')
except SyntaxError as exception:
self._on_critical_exception(exception)
try:
exec(bytecode, {'application': self})
except Exception as exception:
self._on_critical_exception(exception)
self._logger.info('User script done')
##############################################
def init_scanner(self):
if self._scanner is None:
# take time
self._scanner = QmlScanner(fake=self._args.fake_scanner)
self.scanner_ready.emit()
return self._scanner
##############################################
def load_book(self, path):
self._logger.info('Load book {} ...'.format(path))
self._book = QmlBook(path)
self._logger.info('Book loaded')
##############################################
def load_library(self, path):
self._logger.info('Load library {} ...'.format(path))
self._library = QmlBookLibrary(path)
self._logger.info('library loaded')
class Application(QObject):
"""Class to implement a Qt Application."""
instance = None
QmlApplication_CLS = QmlApplication
_logger = _module_logger.getChild('Application')
##############################################
# Fixme: Singleton
@classmethod
def create(cls, *args, **kwargs):
if cls.instance is not None:
raise NameError('Instance exists')
cls.instance = cls(*args, **kwargs)
return cls.instance
##############################################
def __init__(self):
self._logger.info('Ctor')
super().__init__()
QtCore.qInstallMessageHandler(self._message_handler)
self._parse_arguments()
# For Qt Labs Platform native widgets
# self._application = QGuiApplication(sys.argv)
# use QCoreApplication::instance() to get instance
self._application = QApplication(sys.argv)
self._application.main = self
self._init_application()
self._engine = QQmlApplicationEngine()
self._qml_application = self.QmlApplication_CLS(self)
self._application.qml_main = self._qml_application
self._platform = QtPlatform()
# self._logger.info('\n' + str(self._platform))
#! self._load_translation()
self.register_qml_types()
self._set_context_properties()
self._load_qml_main()
# self._run_before_event_loop()
self._application.aboutToQuit.connect(self.aboutToQuit)
QTimer.singleShot(0, self.post_init)
##############################################
@property
def parser(self):
return self._parser
@property
def args(self):
return self._args
@property
def platform(self):
return self._platform
@property
def settings(self):
return self._settings
@property
def qml_application(self):
return self._qml_application
##############################################
def _print_critical_message(self, message):
# print('\nCritical Error on {}'.format(datetime.datetime.now()))
# print('-'*80)
# print(message)
self._logger.critical(message)
##############################################
def _message_handler(self, msg_type, context, msg):
if msg_type == QtCore.QtDebugMsg:
method = self._logger.debug
elif msg_type == QtCore.QtInfoMsg:
method = self._logger.info
elif msg_type == QtCore.QtWarningMsg:
method = self._logger.warning
elif msg_type in (QtCore.QtCriticalMsg, QtCore.QtFatalMsg):
method = self._logger.critical
# method = None
# local_msg = msg.toLocal8Bit()
# localMsg.constData()
context_file = context.file
if context_file is not None:
file_path = Path(context_file).name
else:
file_path = ''
message = '{1} {3} — {0}'.format(msg, file_path, context.line,
context.function)
if method is not None:
method(message)
else:
self._print_critical_message(message)
##############################################
def _on_critical_exception(self, exception):
message = str(exception) + '\n' + traceback.format_exc()
self._print_critical_message(message)
self._qml_application.notify_error(exception)
# sys.exit(1)
##############################################
def _init_application(self):
self._application.setOrganizationName(
ApplicationMetadata.organisation_name)
self._application.setOrganizationDomain(
ApplicationMetadata.organisation_domain)
self._application.setApplicationName(ApplicationMetadata.name)
self._application.setApplicationDisplayName(
ApplicationMetadata.display_name)
self._application.setApplicationVersion(ApplicationMetadata.version)
logo_path = ':/icons/logo/logo-256.png'
self._application.setWindowIcon(QIcon(logo_path))
QIcon.setThemeName('material')
self._settings = ApplicationSettings()
##############################################
@classmethod
def setup_gui_application(self):
QGuiApplication.setAttribute(Qt.AA_EnableHighDpiScaling)
# QQuickStyle.setStyle('Material')
##############################################
def _parse_arguments(self):
self._parser = argparse.ArgumentParser(description='CodeReview', )
self.parse_arguments()
self._args = self._parser.parse_args()
##############################################
def parse_arguments(self):
# self.parser.add_argument(
# '--version',
# action='store_true', default=False,
# help="show version and exit",
# )
self.parser.add_argument(
'--dont-translate',
action='store_true',
default=False,
help="Don't translate application",
)
self.parser.add_argument(
'--user-script',
action=PathAction,
default=None,
help='user script to execute',
)
self.parser.add_argument(
'--user-script-args',
default='',
help="user script args (don't forget to quote)",
)
##############################################
def _load_translation(self):
if self._args.dont_translate:
return
# Fixme: ConfigInstall
# directory = ':/translations'
directory = str(Path(__file__).parent.joinpath('rcc', 'translations'))
locale = QtCore.QLocale()
self._translator = QtCore.QTranslator()
if self._translator.load(locale, 'code-review', '.', directory, '.qm'):
self._application.installTranslator(self._translator)
else:
raise NameError('No translator for locale {}'.format(
locale.name()))
##############################################
def register_qml_types(self):
qmlRegisterType(KeySequenceEditor, 'CodeReview', 1, 0,
'KeySequenceEditor')
qmlRegisterUncreatableType(Shortcut, 'CodeReview', 1, 0, 'Shortcut',
'Cannot create Shortcut')
qmlRegisterUncreatableType(ApplicationSettings, 'CodeReview', 1, 0,
'ApplicationSettings',
'Cannot create ApplicationSettings')
qmlRegisterUncreatableType(self.QmlApplication_CLS, 'CodeReview', 1, 0,
'QmlApplication',
'Cannot create QmlApplication')
##############################################
def _set_context_properties(self):
context = self._engine.rootContext()
context.setContextProperty('application', self._qml_application)
context.setContextProperty('application_settings', self._settings)
##############################################
def _load_qml_main(self):
self._logger.info('Load QML...')
qml_path = Path(__file__).parent.joinpath('qml')
# qml_path = 'qrc:///qml'
self._engine.addImportPath(str(qml_path))
main_qml_path = qml_path.joinpath('main.qml')
self._qml_url = QUrl.fromLocalFile(str(main_qml_path))
# QUrl('qrc:/qml/main.qml')
self._engine.objectCreated.connect(self._check_qml_is_loaded)
self._engine.load(self._qml_url)
self._logger.info('QML loaded')
##############################################
def _check_qml_is_loaded(self, obj, url):
# See https://bugreports.qt.io/browse/QTBUG-39469
if (obj is None and url == self._qml_url):
sys.exit(-1)
##############################################
def exec_(self):
self._logger.info('Start event loop')
rc = self._application.exec_()
self._logger.info('Event loop done {}'.format(rc))
del self._engine # solve quit issue ?
sys.exit(rc)
##############################################
def aboutToQuit(self):
self._logger.info('')
##############################################
def post_init(self):
# Fixme: ui refresh ???
self._logger.info('post Init...')
if self._args.user_script is not None:
self.execute_user_script(self._args.user_script)
self._logger.info('Post Init Done')
##############################################
def execute_user_script(self, script_path):
"""Execute an user script provided by file *script_path* in a context where is defined a
variable *application* that is a reference to the application instance.
"""
script_path = Path(script_path).absolute()
self._logger.info('Execute user script:\n {}'.format(script_path))
try:
source = open(script_path).read()
except FileNotFoundError:
self._logger.info('File {} not found'.format(script_path))
sys.exit(1)
try:
bytecode = compile(source, script_path, 'exec')
except SyntaxError as exception:
self._on_critical_exception(exception)
try:
exec(bytecode, {'application': self})
except Exception as exception:
self._on_critical_exception(exception)
self._logger.info('User script done')