def save_plot(data, file_formats, filename=""):
_LAST_DIR_KEY = "directories/last_graph_directory"
_LAST_FILTER_KEY = "directories/last_graph_filter"
settings = QSettings()
start_dir = settings.value(_LAST_DIR_KEY, filename)
if not start_dir or \
(not os.path.exists(start_dir) and
not os.path.exists(os.path.split(start_dir)[0])):
start_dir = os.path.expanduser("~")
last_filter = settings.value(_LAST_FILTER_KEY, "")
filename, writer, filter = \
filedialogs.open_filename_dialog_save(start_dir, last_filter, file_formats)
if not filename:
return
try:
writer.write(filename, data)
except OSError as e:
mb = QMessageBox(
None,
windowTitle="Error",
text='Error occurred while saving file "{}": {}'.format(filename, e),
detailedText=traceback.format_exc(),
icon=QMessageBox.Critical)
mb.exec_()
else:
settings.setValue(_LAST_DIR_KEY, os.path.split(filename)[0])
settings.setValue(_LAST_FILTER_KEY, filter)
def setup_notifications():
settings = QSettings()
# data collection permission
if not settings.value("error-reporting/permission-requested", False, type=bool) and \
not settings.value("error-reporting/send-statistics", False, bool):
notif = Notification(icon=QIcon(
resource_filename("canvas/icons/statistics-request.png")),
title="Anonymous Usage Statistics",
text="Do you wish to opt-in to sharing "
"statistics about how you use Orange? "
"All data is anonymized and used "
"exclusively for understanding how users "
"interact with Orange.",
accept_button_label="Allow",
reject_button_label="No")
def handle_permission_response(role):
if role != notif.DismissRole:
settings.setValue("error-reporting/permission-requested", True)
if role == notif.AcceptRole:
UsageStatistics.set_enabled(True)
settings.setValue("error-reporting/send-statistics", True)
notif.clicked.connect(handle_permission_response)
canvas.notification_server_instance.registerNotification(notif)
def save_plot(data, file_formats, filename=""):
_LAST_DIR_KEY = "directories/last_graph_directory"
_LAST_FILTER_KEY = "directories/last_graph_filter"
settings = QSettings()
start_dir = settings.value(_LAST_DIR_KEY, filename)
if not start_dir or \
(not os.path.exists(start_dir) and
not os.path.exists(os.path.split(start_dir)[0])):
start_dir = os.path.expanduser("~")
last_filter = settings.value(_LAST_FILTER_KEY, "")
filename, writer, filter = \
filedialogs.get_file_name(start_dir, last_filter, file_formats)
if not filename:
return
try:
writer.write(filename, data)
except Exception as e:
mb = QMessageBox(
None,
windowTitle="Error",
text='Error occurred while saving file "{}": {}'.format(filename, e),
detailedText=traceback.format_exc(),
icon=QMessageBox.Critical)
mb.exec_()
else:
settings.setValue(_LAST_DIR_KEY, os.path.split(filename)[0])
settings.setValue(_LAST_FILTER_KEY, filter)
def check_for_updates():
settings = QSettings()
check_updates = settings.value('startup/check-updates', True, type=bool)
last_check_time = settings.value('startup/last-update-check-time',
0,
type=int)
ONE_DAY = 86400
if check_updates and time.time() - last_check_time > ONE_DAY:
settings.setValue('startup/last-update-check-time', int(time.time()))
class GetLatestVersion(QThread):
resultReady = pyqtSignal(str)
def run(self):
try:
request = Request('https://orange.biolab.si/version/',
headers={
'Accept': 'text/plain',
'Accept-Encoding': 'gzip, deflate',
'Connection': 'close',
'User-Agent': ua_string()
})
contents = urlopen(request, timeout=10).read().decode()
# Nothing that this fails with should make Orange crash
except Exception: # pylint: disable=broad-except
log.exception('Failed to check for updates')
else:
self.resultReady.emit(contents)
def compare_versions(latest):
version = pkg_resources.parse_version
skipped = settings.value('startup/latest-skipped-version',
"",
type=str)
if version(latest) <= version(current) or \
latest == skipped:
return
notif = Notification(
title='橙现智能有更新版本',
text='菜单栏点击: 选项 -> 升级与插件, 选中 orange3-zh 升级',
icon=QIcon(resource_filename("canvas/icons/update.png")))
def handle_click(role):
if role == notif.RejectRole:
settings.setValue('startup/latest-skipped-version', latest)
if role == notif.AcceptRole:
QDesktopServices.openUrl(
QUrl("https://orange.biolab.si/download/"))
notif.clicked.connect(handle_click)
canvas.notification_server_instance.registerNotification(notif)
thread = GetLatestVersion()
thread.resultReady.connect(compare_versions)
thread.start()
return thread
return None
def setup_notifications():
settings = QSettings()
# If run for the fifth time, prompt short survey
show_survey = settings.value("startup/show-short-survey", True, type=bool) and \
settings.value("startup/launch-count", 0, type=int) >= 5
if show_survey:
surveyDialogButtons = NotificationWidget.Ok | NotificationWidget.Close
surveyDialog = NotificationWidget(
icon=QIcon(gui.resource_filename("icons/information.png")),
title="Survey",
text="We want to understand our users better.\n"
"Would you like to take a short survey?",
standardButtons=surveyDialogButtons)
def handle_survey_response(button):
if surveyDialog.buttonRole(
button) == NotificationWidget.AcceptRole:
success = QDesktopServices.openUrl(
QUrl("https://orange.biolab.si/survey/short.html"))
settings.setValue("startup/show-short-survey", not success)
elif surveyDialog.buttonRole(
button) == NotificationWidget.RejectRole:
settings.setValue("startup/show-short-survey", False)
surveyDialog.clicked.connect(handle_survey_response)
NotificationOverlay.registerNotification(surveyDialog)
# data collection permission
if not settings.value(
"error-reporting/permission-requested", False, type=bool):
permDialogButtons = NotificationWidget.Ok | NotificationWidget.Close
permDialog = NotificationWidget(
icon=QIcon(gui.resource_filename("../../distribute/icon-48.png")),
title="Anonymous Usage Statistics",
text="Do you wish to opt-in to sharing "
"statistics about how you use Orange?\n"
"All data is anonymized and used "
"exclusively for understanding how users "
"interact with Orange.",
standardButtons=permDialogButtons)
btnOK = permDialog.button(NotificationWidget.AcceptRole)
btnOK.setText("Allow")
def handle_permission_response(button):
if permDialog.buttonRole(button) != permDialog.DismissRole:
settings.setValue("error-reporting/permission-requested", True)
if permDialog.buttonRole(button) == permDialog.AcceptRole:
UsageStatistics.set_enabled(True)
settings.setValue("error-reporting/send-statistics", True)
permDialog.clicked.connect(handle_permission_response)
NotificationOverlay.registerNotification(permDialog)
def ua_string():
settings = QSettings()
is_anaconda = 'Continuum' in sys.version or 'conda' in sys.version
machine_id = settings.value("reporting/machine-id", "", str)
return 'Orange{orange_version}:Python{py_version}:{platform}:{conda}:{uuid}'.format(
orange_version=current,
py_version='.'.join(str(a) for a in sys.version_info[:3]),
platform=sys.platform,
conda='Anaconda' if is_anaconda else '',
uuid=machine_id if settings.value("reporting/send-statistics", False, bool) else ''
)
def test_qsettings(self):
s = QSettings()
s.setValue("one", 1)
s.setValue("one-half", 0.5)
s.setValue("empty", "")
s.setValue("true", True)
s.sync()
del s
s = QSettings()
self.assertEqual(s.value("one", type=int), 1)
self.assertEqual(s.value("one-half", type=float), 0.5)
self.assertEqual(s.value("empty", type=str), "")
self.assertEqual(s.value("true", type=bool), True)
def check_for_updates():
settings = QSettings()
check_updates = settings.value('startup/check-updates', True, type=bool)
last_check_time = settings.value('startup/last-update-check-time',
0,
type=int)
ONE_DAY = 86400
if check_updates and time.time() - last_check_time > ONE_DAY:
settings.setValue('startup/last-update-check-time', int(time.time()))
from urllib.request import urlopen
from Orange.version import version as current
class GetLatestVersion(QThread):
resultReady = pyqtSignal(str)
def run(self):
try:
self.resultReady.emit(
urlopen('https://orange.biolab.si/version/',
timeout=10).read().decode())
# Nothing that this fails with should make Orange crash
except Exception: # pylint: disable=broad-except
log.exception('Failed to check for updates')
def compare_versions(latest):
version = pkg_resources.parse_version
if version(latest) <= version(current):
return
question = QMessageBox(
QMessageBox.Information,
'Orange Update Available',
'A newer version of Orange is available.<br><br>'
'<b>Current version:</b> {}<br>'
'<b>Latest version:</b> {}'.format(current, latest),
textFormat=Qt.RichText)
ok = question.addButton('Download Now', question.AcceptRole)
question.setDefaultButton(ok)
question.addButton('Remind Later', question.RejectRole)
question.finished.connect(
lambda: question.clickedButton() == ok and QDesktopServices.
openUrl(QUrl("https://orange.biolab.si/download/")))
question.show()
thread = GetLatestVersion()
thread.resultReady.connect(compare_versions)
thread.start()
return thread
def check_for_updates():
settings = QSettings()
check_updates = settings.value('startup/check-updates', True, type=bool)
last_check_time = settings.value('startup/last-update-check-time',
0,
type=int)
ONE_DAY = 86400
if check_updates and time.time() - last_check_time > ONE_DAY:
settings.setValue('startup/last-update-check-time', int(time.time()))
thread = GetLatestVersion()
thread.resultReady.connect(compare_versions)
thread.start()
return thread
def open_report(self):
"""
Present an 'Open report' dialog to the user, load a '.report' file
(as saved by OWReport) and create a new canvas window associated
with the OWReport instance.
"""
settings = QSettings()
KEY = "report/file-dialog-dir"
start_dir = settings.value(KEY, "", type=str)
dlg = QFileDialog(
self,
windowTitle=self.tr("Open Report"),
acceptMode=QFileDialog.AcceptOpen,
fileMode=QFileDialog.ExistingFile,
)
if os.path.isdir(start_dir):
dlg.setDirectory(start_dir)
dlg.setWindowModality(Qt.ApplicationModal)
dlg.setNameFilters(["Report (*.report)"])
def accepted():
directory = dlg.directory().absolutePath()
filename = dlg.selectedFiles()[0]
settings.setValue(KEY, directory)
self._open_report(filename)
dlg.accepted.connect(accepted)
dlg.exec()
def show_survey():
# If run for the first time, open a browser tab with a survey
settings = QSettings()
show_survey = settings.value("startup/show-survey", True, type=bool)
if show_survey:
question = QMessageBox(
QMessageBox.Question,
'Orange Survey',
'We would like to know more about how our software is used.\n\n'
'Would you care to fill our short 1-minute survey?',
QMessageBox.Yes | QMessageBox.No)
question.setDefaultButton(QMessageBox.Yes)
later = question.addButton('Ask again later', QMessageBox.NoRole)
question.setEscapeButton(later)
def handle_response(result):
if result == QMessageBox.Yes:
success = QDesktopServices.openUrl(
QUrl("https://orange.biolab.si/survey/short.html"))
settings.setValue("startup/show-survey", not success)
else:
settings.setValue("startup/show-survey", result != QMessageBox.No)
question.finished.connect(handle_response)
question.show()
return question
def send_statistics(url):
"""Send the statistics to the remote at `url`"""
import json
import requests
settings = QSettings()
if not settings.value(
"error-reporting/send-statistics", False, type=bool):
log.info("Not sending usage statistics (preferences setting).")
return
if not UsageStatistics.is_enabled():
log.info("Not sending usage statistics (disabled).")
return
usage = UsageStatistics()
data = usage.load()
for d in data:
d["Orange Version"] = d.pop("Application Version", "")
try:
r = requests.post(url, files={'file': json.dumps(data)})
if r.status_code != 200:
log.warning(
"Error communicating with server while attempting to send "
"usage statistics.")
return
# success - wipe statistics file
log.info("Usage statistics sent.")
with open(usage.filename(), 'w', encoding="utf-8") as f:
json.dump([], f)
except (ConnectionError, requests.exceptions.RequestException):
log.warning(
"Connection error while attempting to send usage statistics.")
except Exception: # pylint: disable=broad-except
log.warning("Failed to send usage statistics.", exc_info=True)
def show_survey():
# If run for the first time, open a browser tab with a survey
settings = QSettings()
show_survey = settings.value("startup/show-survey", True, type=bool)
if show_survey:
question = QMessageBox(
QMessageBox.Question, 'Orange Survey',
'We would like to know more about how our software is used.\n\n'
'Would you care to fill our short 1-minute survey?',
QMessageBox.Yes | QMessageBox.No)
question.setDefaultButton(QMessageBox.Yes)
later = question.addButton('Ask again later', QMessageBox.NoRole)
question.setEscapeButton(later)
def handle_response(result):
if result == QMessageBox.Yes:
success = QDesktopServices.openUrl(
QUrl("https://orange.biolab.si/survey/short.html"))
settings.setValue("startup/show-survey", not success)
else:
settings.setValue("startup/show-survey",
result != QMessageBox.No)
question.finished.connect(handle_response)
question.show()
return question
def fix_set_proxy_env():
"""
Set http_proxy/https_proxy environment variables (for requests, pip, ...)
from user-specified settings or, if none, from system settings on OS X
and from registry on Windos.
"""
# save default proxies so that setting can be reset
global default_proxies
if default_proxies is None:
default_proxies = getproxies(
) # can also read windows and macos settings
settings = QSettings()
proxies = getproxies()
for scheme in set(["http", "https"]) | set(proxies):
from_settings = settings.value("network/" + scheme + "-proxy",
"",
type=str)
from_default = default_proxies.get(scheme, "")
env_scheme = scheme + '_proxy'
if from_settings:
os.environ[env_scheme] = from_settings
elif from_default:
os.environ[
env_scheme] = from_default # crucial for windows/macos support
else:
os.environ.pop(env_scheme, "")
def test_qsettings_type(self):
"""
Test if QSettings as exported by qtcompat has the 'type' parameter.
"""
with tempfile.NamedTemporaryFile("w+b", suffix=".ini",
delete=False) as f:
settings = QSettings(f.name, QSettings.IniFormat)
settings.setValue("bar", "foo")
self.assertEqual(settings.value("bar", type=str), "foo")
settings.setValue("frob", 4)
del settings
settings = QSettings(f.name, QSettings.IniFormat)
self.assertEqual(settings.value("bar", type=str), "foo")
self.assertEqual(settings.value("frob", type=int), 4)
def test_qsettings_type(self):
"""
Test if QSettings as exported by qtcompat has the 'type' parameter.
"""
with tempfile.NamedTemporaryFile("w+b", suffix=".ini",
delete=False) as f:
settings = QSettings(f.name, QSettings.IniFormat)
settings.setValue("bar", "foo")
self.assertEqual(settings.value("bar", type=str), "foo")
settings.setValue("frob", 4)
del settings
settings = QSettings(f.name, QSettings.IniFormat)
self.assertEqual(settings.value("bar", type=str), "foo")
self.assertEqual(settings.value("frob", type=int), 4)
def setup_application(self):
super().setup_application()
clear_settings_flag = os.path.join(widget_settings_dir(),
"DELETE_ON_START")
# NOTE: No OWWidgetBase subclass should be imported before this
options = self.options
if options.clear_widget_settings or \
os.path.isfile(clear_settings_flag):
self.clear_widget_settings()
if options.clear_all:
self.clear_widget_settings()
self.clear_caches()
self.clear_application_settings()
notif_server = NotificationServer()
canvas.notification_server_instance = notif_server
self._update_check = check_for_updates()
self._send_stat = send_usage_statistics()
self._pull_notifs = pull_notifications()
settings = QSettings()
settings.setValue('startup/launch-count',
settings.value('startup/launch-count', 0, int) + 1)
if settings.value("reporting/send-statistics", False, type=bool) \
and is_release:
UsageStatistics.set_enabled(True)
app = self.application
# set pyqtgraph colors
def onPaletteChange():
p = app.palette()
bg = p.base().color().name()
fg = p.windowText().color().name()
log.info('Setting pyqtgraph background to %s', bg)
pyqtgraph.setConfigOption('background', bg)
log.info('Setting pyqtgraph foreground to %s', fg)
pyqtgraph.setConfigOption('foreground', fg)
app.setProperty('darkMode', p.color(QPalette.Base).value() < 127)
app.paletteChanged.connect(onPaletteChange)
onPaletteChange()
def send_statistics(url):
"""Send the statistics to the remote at `url`"""
import json
import requests
settings = QSettings()
if not settings.value("reporting/send-statistics", False, type=bool):
log.info("Not sending usage statistics (preferences setting).")
return
if not UsageStatistics.is_enabled():
log.info("Not sending usage statistics (disabled).")
return
if settings.contains('reporting/machine-id'):
machine_id = settings.value('reporting/machine-id')
else:
machine_id = str(uuid.uuid4())
settings.setValue('reporting/machine-id', machine_id)
is_anaconda = 'Continuum' in sys.version or 'conda' in sys.version
data = UsageStatistics.load()
for d in data:
d["Orange Version"] = d.pop("Application Version", "")
d["Anaconda"] = is_anaconda
d["UUID"] = machine_id
try:
r = requests.post(url, files={'file': json.dumps(data)})
if r.status_code != 200:
log.warning(
"Error communicating with server while attempting to send "
"usage statistics. Status code " + str(r.status_code))
return
# success - wipe statistics file
log.info("Usage statistics sent.")
with open(UsageStatistics.filename(), 'w', encoding="utf-8") as f:
json.dump([], f)
except (ConnectionError, requests.exceptions.RequestException):
log.warning(
"Connection error while attempting to send usage statistics.")
except Exception: # pylint: disable=broad-except
log.warning("Failed to send usage statistics.", exc_info=True)
def save_plot(data, file_formats, filename=""):
_LAST_DIR_KEY = "directories/last_graph_directory"
_LAST_FILTER_KEY = "directories/last_graph_filter"
settings = QSettings()
start_dir = settings.value(_LAST_DIR_KEY, filename)
if not start_dir or \
(not os.path.exists(start_dir) and
not os.path.exists(os.path.split(start_dir)[0])):
start_dir = os.path.expanduser("~")
last_filter = settings.value(_LAST_FILTER_KEY, "")
filename, writer, filter = \
filedialogs.get_file_name(start_dir, last_filter, file_formats)
if not filename:
return
try:
writer.write(filename, data)
except Exception as e:
QMessageBox.critical(
None, "Error", 'Error occurred while saving file "{}": {}'.format(filename, e))
else:
settings.setValue(_LAST_DIR_KEY, os.path.split(filename)[0])
settings.setValue(_LAST_FILTER_KEY, filter)
def configureStyle():
from orangecanvas import styles
args = CanvasApplication.__args
settings = QSettings()
settings.beginGroup("application-style")
name = settings.value("style-name", "", type=str)
if args is not None and args.style:
# command line params take precedence
name = args.style
if name != "":
inst = QApplication.instance()
if inst is not None:
if inst.style().objectName().lower() != name.lower():
QApplication.setStyle(name)
theme = settings.value("palette", "", type=str)
if args is not None and args.colortheme:
theme = args.colortheme
if theme and theme in styles.colorthemes:
palette = styles.colorthemes[theme]()
QApplication.setPalette(palette)
def max_active(self) -> int:
value = self.__max_running # type: Optional[int]
if value is None:
value = mapping_get(os.environ, "MAX_ACTIVE_NODES", int, None)
if value is None:
s = QSettings()
s.beginGroup(__name__)
value = s.value("max-active-nodes", defaultValue=1, type=int)
if value < 0:
ccount = os.cpu_count()
if ccount is None:
return 1
else:
return max(1, ccount + value)
else:
return max(1, value)
def show_welcome_screen(self, parent: CanvasMainWindow):
"""Show the initial welcome screen."""
settings = QSettings()
options = self.options
want_welcome = settings.value("startup/show-welcome-screen",
True,
type=bool) and not options.no_welcome
def trigger():
if not parent.is_transient():
return
swp_loaded = parent.ask_load_swp_if_exists()
if not swp_loaded and want_welcome:
parent.welcome_action.trigger()
# On a timer to allow FileOpen events to be delivered. If so
# then do not show the welcome screen.
QTimer.singleShot(0, trigger)
def _networkAccessManagerInstance(cls):
netmanager = cls._NETMANAGER_REF and cls._NETMANAGER_REF()
settings = QSettings()
settings.beginGroup(__name__)
cache_dir = os.path.join(config.cache_dir(), "help", __name__)
cache_size = settings.value("cache_size_mb", defaultValue=50, type=int)
if netmanager is None:
try:
os.makedirs(cache_dir, exist_ok=True)
except OSError:
pass
netmanager = QNetworkAccessManager()
cache = QNetworkDiskCache()
cache.setCacheDirectory(cache_dir)
cache.setMaximumCacheSize(cache_size * 2**20)
netmanager.setCache(cache)
cls._NETMANAGER_REF = ref(netmanager)
return netmanager
def list_selected_encodings():
# type: () -> List[str]
"""
Return a list of all current selected encodings from user preferences.
"""
settings = QSettings()
settings.beginGroup(SettingsGroup)
res = []
for encoding, _ in ENCODING_DISPLAY_NAME:
try:
co = codecs.lookup(encoding)
except LookupError:
continue
selected = settings.value(co.name,
defaultValue=co.name in DEFAULT_ENCODINGS,
type=bool)
if selected:
res.append(co.name)
return res
def fix_set_proxy_env():
"""
Set http_proxy/https_proxy environment variables (for requests, pip, ...)
from user-specified settings or, if none, from system settings on OS X
and from registry on Windos.
"""
# save default proxies so that setting can be reset
global default_proxies
if default_proxies is None:
default_proxies = getproxies() # can also read windows and macos settings
settings = QSettings()
proxies = getproxies()
for scheme in set(["http", "https"]) | set(proxies):
from_settings = settings.value("network/" + scheme + "-proxy", "", type=str)
from_default = default_proxies.get(scheme, "")
env_scheme = scheme + '_proxy'
if from_settings:
os.environ[env_scheme] = from_settings
elif from_default:
os.environ[env_scheme] = from_default # crucial for windows/macos support
else:
os.environ.pop(env_scheme, "")
def splash_screen(self) -> SplashScreen:
"""Return the application splash screen"""
if self.__splash_screen is not None:
return self.__splash_screen[0]
settings = QSettings()
options = self.options
want_splash = \
settings.value("startup/show-splash-screen", True, type=bool) and \
not options.no_splash
if want_splash:
pm, rect = self.config.splash_screen()
splash_screen = SplashScreen(pixmap=pm, textRect=rect)
splash_screen.setAttribute(Qt.WA_DeleteOnClose)
splash_screen.setFont(QFont("Helvetica", 12))
palette = splash_screen.palette()
color = QColor("#FFD39F")
palette.setColor(QPalette.Text, color)
splash_screen.setPalette(palette)
else:
splash_screen = None
self.__splash_screen = (splash_screen, )
return splash_screen
def pull_notifications():
settings = QSettings()
check_notifs = settings.value("notifications/check-notifications", True,
bool)
if not check_notifs:
return None
Version = pkg_resources.parse_version
# create settings_dict for notif requirements purposes (read-only)
spec = canvasconfig.spec + config.spec
settings_dict = canvasconfig.Settings(defaults=spec, store=settings)
# map of installed addon name -> version
installed_list = [
ep.dist for ep in config.addon_entry_points() if ep.dist is not None
]
installed = defaultdict(lambda: "-1")
for addon in installed_list:
installed[addon.project_name] = addon.version
# get set of already displayed notification IDs, stored in settings["notifications/displayed"]
displayedIDs = literal_eval(
settings.value("notifications/displayed", "set()", str))
# get notification feed from Github
class GetNotifFeed(QThread):
resultReady = pyqtSignal(str)
def run(self):
try:
request = Request('https://orange.biolab.si/notification-feed',
headers={
'Accept': 'text/plain',
'Connection': 'close',
'User-Agent': ua_string(),
'Cache-Control': 'no-cache',
'Pragma': 'no-cache'
})
contents = urlopen(request, timeout=10).read().decode()
# Nothing that this fails with should make Orange crash
except Exception: # pylint: disable=broad-except
log.exception('Failed to pull notification feed')
else:
self.resultReady.emit(contents)
thread = GetNotifFeed()
def parse_yaml_notification(YAMLnotif: YAMLNotification):
# check if notification has been displayed and responded to previously
if YAMLnotif.id and YAMLnotif.id in displayedIDs:
return
# check if type is filtered by user
allowAnnouncements = settings.value('notifications/announcements',
True, bool)
allowBlog = settings.value('notifications/blog', True, bool)
allowNewFeatures = settings.value('notifications/new-features', True,
bool)
if YAMLnotif.type and \
(YAMLnotif.type == 'announcement' and not allowAnnouncements
or YAMLnotif.type == 'blog' and not allowBlog
or YAMLnotif.type == 'new-features' and not allowNewFeatures):
return
# check time validity
today = date.today()
if (YAMLnotif.start and YAMLnotif.start > today) or \
(YAMLnotif.end and YAMLnotif.end < today):
return
# check requirements
reqs = YAMLnotif.requirements
# Orange/addons version
if reqs and 'installed' in reqs and \
not requirementsSatisfied(reqs['installed'], installed, req_type=Version):
return
# local config values
if reqs and 'local_config' in reqs and \
not requirementsSatisfied(reqs['local_config'], settings_dict):
return
# if no custom icon is set, default to notif type icon
if YAMLnotif.icon is None and YAMLnotif.type is not None:
YAMLnotif.icon = "canvas/icons/" + YAMLnotif.type + ".png"
# instantiate and return Notification
notif = YAMLnotif.toNotification()
# connect link to notification
notif.accepted.connect(lambda: open_link(QUrl(YAMLnotif.link)))
# remember notification id
def remember_notification(role):
# if notification was accepted or rejected, write its ID to preferences
if role == notif.DismissRole or YAMLnotif.id is None:
return
displayedIDs.add(YAMLnotif.id)
settings.setValue("notifications/displayed", repr(displayedIDs))
notif.clicked.connect(remember_notification)
# display notification
canvas.notification_server_instance.registerNotification(notif)
def setup_notification_feed(feed_str):
feed = yaml.safe_load(feed_str)
for YAMLnotif in feed:
parse_yaml_notification(YAMLnotif)
thread.resultReady.connect(setup_notification_feed)
thread.start()
return thread
def main(argv=None):
if argv is None:
argv = sys.argv
usage = "usage: %prog [options] [workflow_file]"
parser = optparse.OptionParser(usage=usage)
parser.add_option("--no-discovery",
action="store_true",
help="Don't run widget discovery "
"(use full cache instead)")
parser.add_option("--force-discovery",
action="store_true",
help="Force full widget discovery "
"(invalidate cache)")
parser.add_option("--clear-widget-settings",
action="store_true",
help="Remove stored widget setting")
parser.add_option("--no-welcome",
action="store_true",
help="Don't show welcome dialog.")
parser.add_option("--no-splash",
action="store_true",
help="Don't show splash screen.")
parser.add_option("-l", "--log-level",
help="Logging level (0, 1, 2, 3, 4)",
type="int", default=1)
parser.add_option("--style",
help="QStyle to use",
type="str", default=None)
parser.add_option("--stylesheet",
help="Application level CSS style sheet to use",
type="str", default=None)
parser.add_option("--qt",
help="Additional arguments for QApplication",
type="str", default=None)
(options, args) = parser.parse_args(argv[1:])
levels = [logging.CRITICAL,
logging.ERROR,
logging.WARN,
logging.INFO,
logging.DEBUG]
# Fix streams before configuring logging (otherwise it will store
# and write to the old file descriptors)
fix_win_pythonw_std_stream()
# Try to fix fonts on OSX Mavericks
fix_osx_10_9_private_font()
# File handler should always be at least INFO level so we need
# the application root level to be at least at INFO.
root_level = min(levels[options.log_level], logging.INFO)
rootlogger = logging.getLogger(canvas.__name__)
rootlogger.setLevel(root_level)
# Initialize SQL query and execution time logger (in SqlTable)
sql_level = min(levels[options.log_level], logging.INFO)
make_sql_logger(sql_level)
# Standard output stream handler at the requested level
stream_hander = logging.StreamHandler()
stream_hander.setLevel(level=levels[options.log_level])
rootlogger.addHandler(stream_hander)
log.info("Starting 'Orange Canvas' application.")
qt_argv = argv[:1]
style = options.style
defaultstylesheet = "orange.qss"
fusiontheme = None
if style is not None:
if style.startswith("fusion:"):
qt_argv += ["-style", "fusion"]
_, _, fusiontheme = style.partition(":")
else:
qt_argv += ["-style", style]
if options.qt is not None:
qt_argv += shlex.split(options.qt)
qt_argv += args
if QT_VERSION >= 0x50600:
CanvasApplication.setAttribute(Qt.AA_UseHighDpiPixmaps)
log.debug("Starting CanvasApplicaiton with argv = %r.", qt_argv)
app = CanvasApplication(qt_argv)
if app.style().metaObject().className() == "QFusionStyle":
if fusiontheme == "breeze-dark":
app.setPalette(breeze_dark())
defaultstylesheet = "darkorange.qss"
palette = app.palette()
if style is None and palette.color(QPalette.Window).value() < 127:
log.info("Switching default stylesheet to darkorange")
defaultstylesheet = "darkorange.qss"
# NOTE: config.init() must be called after the QApplication constructor
config.init()
clear_settings_flag = os.path.join(
config.widget_settings_dir(), "DELETE_ON_START")
if options.clear_widget_settings or \
os.path.isfile(clear_settings_flag):
log.info("Clearing widget settings")
shutil.rmtree(
config.widget_settings_dir(),
ignore_errors=True)
# Set http_proxy environment variables, after (potentially) clearing settings
fix_set_proxy_env()
file_handler = logging.FileHandler(
filename=os.path.join(config.log_dir(), "canvas.log"),
mode="w"
)
file_handler.setLevel(root_level)
rootlogger.addHandler(file_handler)
# intercept any QFileOpenEvent requests until the main window is
# fully initialized.
# NOTE: The QApplication must have the executable ($0) and filename
# arguments passed in argv otherwise the FileOpen events are
# triggered for them (this is done by Cocoa, but QApplicaiton filters
# them out if passed in argv)
open_requests = []
def onrequest(url):
log.info("Received an file open request %s", url)
open_requests.append(url)
app.fileOpenRequest.connect(onrequest)
settings = QSettings()
stylesheet = options.stylesheet or defaultstylesheet
stylesheet_string = None
if stylesheet != "none":
if os.path.isfile(stylesheet):
with open(stylesheet, "r") as f:
stylesheet_string = f.read()
else:
if not os.path.splitext(stylesheet)[1]:
# no extension
stylesheet = os.path.extsep.join([stylesheet, "qss"])
pkg_name = canvas.__name__
resource = "styles/" + stylesheet
if pkg_resources.resource_exists(pkg_name, resource):
stylesheet_string = \
pkg_resources.resource_string(pkg_name, resource).decode()
base = pkg_resources.resource_filename(pkg_name, "styles")
pattern = re.compile(
r"^\s@([a-zA-Z0-9_]+?)\s*:\s*([a-zA-Z0-9_/]+?);\s*$",
flags=re.MULTILINE
)
matches = pattern.findall(stylesheet_string)
for prefix, search_path in matches:
QDir.addSearchPath(prefix, os.path.join(base, search_path))
log.info("Adding search path %r for prefix, %r",
search_path, prefix)
stylesheet_string = pattern.sub("", stylesheet_string)
else:
log.info("%r style sheet not found.", stylesheet)
# Add the default canvas_icons search path
dirpath = os.path.abspath(os.path.dirname(canvas.__file__))
QDir.addSearchPath("canvas_icons", os.path.join(dirpath, "icons"))
canvas_window = CanvasMainWindow()
canvas_window.setWindowIcon(config.application_icon())
if stylesheet_string is not None:
canvas_window.setStyleSheet(stylesheet_string)
if not options.force_discovery:
reg_cache = cache.registry_cache()
else:
reg_cache = None
widget_discovery = qt.QtWidgetDiscovery(cached_descriptions=reg_cache)
widget_registry = qt.QtWidgetRegistry()
widget_discovery.found_category.connect(
widget_registry.register_category
)
widget_discovery.found_widget.connect(
widget_registry.register_widget
)
want_splash = \
settings.value("startup/show-splash-screen", True, type=bool) and \
not options.no_splash
if want_splash:
pm, rect = config.splash_screen()
splash_screen = SplashScreen(pixmap=pm, textRect=rect)
splash_screen.setFont(QFont("Helvetica", 12))
color = QColor("#FFD39F")
def show_message(message):
splash_screen.showMessage(message, color=color)
widget_discovery.discovery_start.connect(splash_screen.show)
widget_discovery.discovery_process.connect(show_message)
widget_discovery.discovery_finished.connect(splash_screen.hide)
log.info("Running widget discovery process.")
cache_filename = os.path.join(cache_dir(), "widget-registry.pck")
if options.no_discovery:
with open(cache_filename, "rb") as f:
widget_registry = pickle.load(f)
widget_registry = qt.QtWidgetRegistry(widget_registry)
else:
widget_discovery.run(config.widgets_entry_points())
# Store cached descriptions
cache.save_registry_cache(widget_discovery.cached_descriptions)
with open(cache_filename, "wb") as f:
pickle.dump(WidgetRegistry(widget_registry), f)
set_global_registry(widget_registry)
canvas_window.set_widget_registry(widget_registry)
canvas_window.show()
canvas_window.raise_()
want_welcome = \
settings.value("startup/show-welcome-screen", True, type=bool) \
and not options.no_welcome
# Process events to make sure the canvas_window layout has
# a chance to activate (the welcome dialog is modal and will
# block the event queue, plus we need a chance to receive open file
# signals when running without a splash screen)
app.processEvents()
app.fileOpenRequest.connect(canvas_window.open_scheme_file)
if want_welcome and not args and not open_requests:
canvas_window.welcome_dialog()
elif args:
log.info("Loading a scheme from the command line argument %r",
args[0])
canvas_window.load_scheme(args[0])
elif open_requests:
log.info("Loading a scheme from an `QFileOpenEvent` for %r",
open_requests[-1])
canvas_window.load_scheme(open_requests[-1].toLocalFile())
# local references prevent destruction
_ = show_survey()
__ = check_for_updates()
# Tee stdout and stderr into Output dock
log_view = canvas_window.log_view()
stdout = TextStream()
stdout.stream.connect(log_view.write)
if sys.stdout:
stdout.stream.connect(sys.stdout.write)
stdout.flushed.connect(sys.stdout.flush)
stderr = TextStream()
error_writer = log_view.formated(color=Qt.red)
stderr.stream.connect(error_writer.write)
if sys.stderr:
stderr.stream.connect(sys.stderr.write)
stderr.flushed.connect(sys.stderr.flush)
log.info("Entering main event loop.")
try:
with patch('sys.excepthook',
ExceptHook(stream=stderr, canvas=canvas_window,
handledException=handle_exception)),\
patch('sys.stderr', stderr),\
patch('sys.stdout', stdout):
status = app.exec_()
except BaseException:
log.error("Error in main event loop.", exc_info=True)
canvas_window.deleteLater()
app.processEvents()
app.flush()
del canvas_window
# Collect any cycles before deleting the QApplication instance
gc.collect()
del app
return status
def main(argv=None):
if argv is None:
argv = sys.argv
usage = "usage: %prog [options] [workflow_file]"
parser = optparse.OptionParser(usage=usage)
parser.add_option("--no-discovery",
action="store_true",
help="Don't run widget discovery "
"(use full cache instead)")
parser.add_option("--force-discovery",
action="store_true",
help="Force full widget discovery "
"(invalidate cache)")
parser.add_option("--no-welcome",
action="store_true",
help="Don't show welcome dialog.")
parser.add_option("--no-splash",
action="store_true",
help="Don't show splash screen.")
parser.add_option("-l",
"--log-level",
help="Logging level (0, 1, 2, 3, 4)",
type="int",
default=1)
parser.add_option("--style",
help="QStyle to use",
type="str",
default=None)
parser.add_option("--stylesheet",
help="Application level CSS style sheet to use",
type="str",
default=None)
parser.add_option("--qt",
help="Additional arguments for QApplication",
type="str",
default=None)
parser.add_option("--config",
help="Configuration namespace",
type="str",
default="orangecanvas.example")
# -m canvas orange.widgets
# -m canvas --config orange.widgets
(options, args) = parser.parse_args(argv[1:])
levels = [
logging.CRITICAL, logging.ERROR, logging.WARN, logging.INFO,
logging.DEBUG
]
# Fix streams before configuring logging (otherwise it will store
# and write to the old file descriptors)
fix_win_pythonw_std_stream()
# Set http_proxy environment variable(s) for some clients
fix_set_proxy_env()
# Try to fix macOS automatic window tabbing (Sierra and later)
fix_macos_nswindow_tabbing()
# File handler should always be at least INFO level so we need
# the application root level to be at least at INFO.
root_level = min(levels[options.log_level], logging.INFO)
rootlogger = logging.getLogger(__package__)
rootlogger.setLevel(root_level)
# Standard output stream handler at the requested level
stream_hander = logging.StreamHandler()
stream_hander.setLevel(level=levels[options.log_level])
rootlogger.addHandler(stream_hander)
if options.config is not None:
try:
cfg = utils.name_lookup(options.config)
except (ImportError, AttributeError):
pass
else:
config.set_default(cfg())
log.info("activating %s", options.config)
log.info("Starting 'Orange Canvas' application.")
qt_argv = argv[:1]
style = options.style
defaultstylesheet = "orange.qss"
fusiontheme = None
if style is not None:
if style.startswith("fusion:"):
qt_argv += ["-style", "fusion"]
_, _, fusiontheme = style.partition(":")
else:
qt_argv += ["-style", style]
if options.qt is not None:
qt_argv += shlex.split(options.qt)
qt_argv += args
if QT_VERSION >= 0x50600:
CanvasApplication.setAttribute(Qt.AA_UseHighDpiPixmaps)
log.debug("Starting CanvasApplicaiton with argv = %r.", qt_argv)
app = CanvasApplication(qt_argv)
trans = QTranslator()
trans.load("./orangecanvas/orangecanvas_cn")
app.installTranslator(trans)
if app.style().metaObject().className() == "QFusionStyle":
if fusiontheme == "breeze-dark":
app.setPalette(breeze_dark())
defaultstylesheet = "darkorange.qss"
palette = app.palette()
if style is None and palette.color(QPalette.Window).value() < 127:
log.info("Switching default stylesheet to darkorange")
defaultstylesheet = "darkorange.qss"
# NOTE: config.init() must be called after the QApplication constructor
config.init()
file_handler = logging.FileHandler(filename=os.path.join(
config.log_dir(), "canvas.log"),
mode="w")
file_handler.setLevel(root_level)
rootlogger.addHandler(file_handler)
# intercept any QFileOpenEvent requests until the main window is
# fully initialized.
# NOTE: The QApplication must have the executable ($0) and filename
# arguments passed in argv otherwise the FileOpen events are
# triggered for them (this is done by Cocoa, but QApplicaiton filters
# them out if passed in argv)
open_requests = []
def onrequest(url):
log.info("Received an file open request %s", url)
open_requests.append(url)
app.fileOpenRequest.connect(onrequest)
settings = QSettings()
stylesheet = options.stylesheet or defaultstylesheet
stylesheet_string = None
if stylesheet != "none":
if os.path.isfile(stylesheet):
with io.open(stylesheet, "r") as f:
stylesheet_string = f.read()
else:
if not os.path.splitext(stylesheet)[1]:
# no extension
stylesheet = os.path.extsep.join([stylesheet, "qss"])
pkg_name = __package__
resource = "styles/" + stylesheet
if pkg_resources.resource_exists(pkg_name, resource):
stylesheet_string = \
pkg_resources.resource_string(pkg_name, resource).decode("utf-8")
base = pkg_resources.resource_filename(pkg_name, "styles")
pattern = re.compile(
r"^\s@([a-zA-Z0-9_]+?)\s*:\s*([a-zA-Z0-9_/]+?);\s*$",
flags=re.MULTILINE)
matches = pattern.findall(stylesheet_string)
for prefix, search_path in matches:
QDir.addSearchPath(prefix, os.path.join(base, search_path))
log.info("Adding search path %r for prefix, %r",
search_path, prefix)
stylesheet_string = pattern.sub("", stylesheet_string)
else:
log.info("%r style sheet not found.", stylesheet)
# Add the default canvas_icons search path
dirpath = os.path.abspath(os.path.dirname(__file__))
QDir.addSearchPath("canvas_icons", os.path.join(dirpath, "icons"))
canvas_window = CanvasMainWindow()
canvas_window.setAttribute(Qt.WA_DeleteOnClose)
canvas_window.setWindowIcon(config.application_icon())
if stylesheet_string is not None:
canvas_window.setStyleSheet(stylesheet_string)
if not options.force_discovery:
reg_cache = cache.registry_cache()
else:
reg_cache = None
widget_registry = qt.QtWidgetRegistry()
widget_discovery = config.widget_discovery(widget_registry,
cached_descriptions=reg_cache)
want_splash = \
settings.value("startup/show-splash-screen", True, type=bool) and \
not options.no_splash
if want_splash:
pm, rect = config.splash_screen()
splash_screen = SplashScreen(pixmap=pm, textRect=rect)
splash_screen.setAttribute(Qt.WA_DeleteOnClose)
splash_screen.setFont(QFont("Helvetica", 12))
color = QColor("#FFD39F")
def show_message(message):
splash_screen.showMessage(message, color=color)
widget_registry.category_added.connect(show_message)
show_splash = splash_screen.show
close_splash = splash_screen.close
else:
show_splash = close_splash = lambda: None
log.info("Running widget discovery process.")
cache_filename = os.path.join(config.cache_dir(), "widget-registry.pck")
if options.no_discovery:
with open(cache_filename, "rb") as f:
widget_registry = pickle.load(f)
widget_registry = qt.QtWidgetRegistry(widget_registry)
else:
show_splash()
widget_discovery.run(config.widgets_entry_points())
close_splash()
# Store cached descriptions
cache.save_registry_cache(widget_discovery.cached_descriptions)
with open(cache_filename, "wb") as f:
pickle.dump(WidgetRegistry(widget_registry), f)
set_global_registry(widget_registry)
canvas_window.set_widget_registry(widget_registry)
canvas_window.show()
canvas_window.raise_()
want_welcome = \
settings.value("startup/show-welcome-screen", True, type=bool) \
and not options.no_welcome
# Process events to make sure the canvas_window layout has
# a chance to activate (the welcome dialog is modal and will
# block the event queue, plus we need a chance to receive open file
# signals when running without a splash screen)
app.processEvents()
app.fileOpenRequest.connect(canvas_window.open_scheme_file)
if want_welcome and not args and not open_requests:
canvas_window.welcome_dialog()
elif args:
log.info("Loading a scheme from the command line argument %r", args[0])
canvas_window.load_scheme(args[0])
elif open_requests:
log.info("Loading a scheme from an `QFileOpenEvent` for %r",
open_requests[-1])
canvas_window.load_scheme(open_requests[-1].toLocalFile())
# Tee stdout and stderr into Output dock
output_view = canvas_window.output_view()
stdout = TextStream()
stdout.stream.connect(output_view.write)
if sys.stdout:
stdout.stream.connect(sys.stdout.write)
stdout.flushed.connect(sys.stdout.flush)
stderr = TextStream()
error_writer = output_view.formated(color=Qt.red)
stderr.stream.connect(error_writer.write)
if sys.stderr:
stderr.stream.connect(sys.stderr.write)
stderr.flushed.connect(sys.stderr.flush)
with ExitStack() as stack:
stack.enter_context(closing(stderr))
stack.enter_context(closing(stdout))
stack.enter_context(redirect_stdout(stdout))
stack.enter_context(redirect_stderr(stderr))
log.info("Entering main event loop.")
sys.excepthook = ExceptHook(stream=stderr)
try:
status = app.exec_()
finally:
sys.excepthook = sys.__excepthook__
del canvas_window
app.processEvents()
app.flush()
# Collect any cycles before deleting the QApplication instance
gc.collect()
del app
if status == 96:
log.info('Restarting via exit code 96.')
run_after_exit([sys.executable, sys.argv[0]])
return status
def check_for_updates():
settings = QSettings()
check_updates = settings.value('startup/check-updates', True, type=bool)
last_check_time = settings.value('startup/last-update-check-time', 0, type=int)
ONE_DAY = 86400
if check_updates and time.time() - last_check_time > ONE_DAY:
settings.setValue('startup/last-update-check-time', int(time.time()))
from Orange.version import version as current
class GetLatestVersion(QThread):
resultReady = pyqtSignal(str)
def run(self):
try:
request = Request('https://orange.biolab.si/version/',
headers={
'Accept': 'text/plain',
'Accept-Encoding': 'gzip, deflate',
'Connection': 'close',
'User-Agent': self.ua_string()})
contents = urlopen(request, timeout=10).read().decode()
# Nothing that this fails with should make Orange crash
except Exception: # pylint: disable=broad-except
log.exception('Failed to check for updates')
else:
self.resultReady.emit(contents)
@staticmethod
def ua_string():
is_anaconda = 'Continuum' in sys.version or 'conda' in sys.version
return 'Orange{orange_version}:Python{py_version}:{platform}:{conda}'.format(
orange_version=current,
py_version='.'.join(sys.version[:3]),
platform=sys.platform,
conda='Anaconda' if is_anaconda else '',
)
def compare_versions(latest):
version = pkg_resources.parse_version
if version(latest) <= version(current):
return
question = QMessageBox(
QMessageBox.Information,
'Orange Update Available',
'A newer version of Orange is available.<br><br>'
'<b>Current version:</b> {}<br>'
'<b>Latest version:</b> {}'.format(current, latest),
textFormat=Qt.RichText)
ok = question.addButton('Download Now', question.AcceptRole)
question.setDefaultButton(ok)
question.addButton('Remind Later', question.RejectRole)
question.finished.connect(
lambda:
question.clickedButton() == ok and
QDesktopServices.openUrl(QUrl("https://orange.biolab.si/download/")))
question.show()
thread = GetLatestVersion()
thread.resultReady.connect(compare_versions)
thread.start()
return thread
def __init__(self, data):
icon = QApplication.style().standardIcon(QStyle.SP_MessageBoxWarning)
F = self.DataField
def _finished(*,
key=(data.get(F.MODULE), data.get(F.WIDGET_MODULE)),
filename=data.get(F.WIDGET_SCHEME)):
self._cache.add(key)
try:
os.remove(filename)
except Exception:
pass
super().__init__(None,
Qt.Window,
modal=True,
sizeGripEnabled=True,
windowIcon=icon,
windowTitle='Unexpected Error',
finished=_finished)
self._data = data
layout = QVBoxLayout(self)
self.setLayout(layout)
labels = QWidget(self)
labels_layout = QHBoxLayout(self)
labels.setLayout(labels_layout)
labels_layout.addWidget(QLabel(pixmap=icon.pixmap(50, 50)))
labels_layout.addWidget(
QLabel('The program encountered an unexpected error. Please<br>'
'report it anonymously to the developers.<br><br>'
'The following data will be reported:'))
labels_layout.addStretch(1)
layout.addWidget(labels)
font = QFont('Monospace', 10)
font.setStyleHint(QFont.Monospace)
font.setFixedPitch(True)
textbrowser = QTextBrowser(self,
font=font,
openLinks=False,
lineWrapMode=QTextBrowser.NoWrap,
anchorClicked=QDesktopServices.openUrl)
layout.addWidget(textbrowser)
def _reload_text():
add_scheme = cb.isChecked()
settings.setValue('error-reporting/add-scheme', add_scheme)
lines = ['<table>']
for k, v in data.items():
if k.startswith('_'):
continue
_v, v = v, escape(str(v))
if k == F.WIDGET_SCHEME:
if not add_scheme:
continue
v = '<a href="{}">{}</a>'.format(
urljoin('file:', pathname2url(_v)), v)
if k in (F.STACK_TRACE, F.LOCALS):
v = v.replace('\n', '<br>').replace(' ', ' ')
lines.append(
'<tr><th align="left">{}:</th><td>{}</td></tr>'.format(
k, v))
lines.append('</table>')
textbrowser.setHtml(''.join(lines))
settings = QSettings()
cb = QCheckBox('Include workflow (data will NOT be transmitted)',
self,
checked=settings.value('error-reporting/add-scheme',
True,
type=bool))
cb.stateChanged.connect(_reload_text)
_reload_text()
layout.addWidget(cb)
buttons = QWidget(self)
buttons_layout = QHBoxLayout(self)
buttons.setLayout(buttons_layout)
buttons_layout.addWidget(
QPushButton('Send Report (Thanks!)',
default=True,
clicked=self.accept))
buttons_layout.addWidget(
QPushButton("Don't Send", default=False, clicked=self.reject))
layout.addWidget(buttons)
def welcome_dialog_paged(self):
# type: (CanvasMainWindow) -> None
"""
Show a modal multipaged welcome screen.
"""
dlg = PagedDialog(
self,
windowTitle=self.tr("Orange Data Mining"),
)
dlg.setWindowModality(Qt.ApplicationModal)
dlg.setAttribute(Qt.WA_DeleteOnClose)
dlg.layout().setSizeConstraint(QVBoxLayout.SetFixedSize)
dlg.setStyleSheet("""
TabView::item:selected {
background: rgb(243, 171, 86);
}
""")
main = FancyWelcomeScreen()
spec = welcome_screen_specs()
if spec.image:
background = QImage(spec.image)
else:
background = QImage("canvas_icons:orange-start-background.png")
main.setImage(background)
if spec.css:
main.setStyleSheet(spec.css)
else:
main.setStyleSheet(
"StartItem { background-color: rgb(123, 164, 214) }")
def decorate_icon(icon):
return decorate_welcome_icon(icon, "#6dacb2")
for i, item in zip(range(3), spec.items):
main.setItemText(i, item.text)
main.setItemToolTip(i, item.tooltip)
main.setItemIcon(i, decorate_icon(QIcon(item.icon)))
main.setItemActiveIcon(i, decorate_icon(QIcon(item.active_icon)))
main.item(i).setProperty("path", item.path)
main.setCurrentIndex(0)
main.activated.connect(lambda: openselectedbutton.click())
PageWelcome = dlg.addPage(sc_icon("Welcome.svg"), "Welcome", main)
examples_ = examples.workflows(config.default)
items = [previewmodel.PreviewItem(path=t.abspath()) for t in examples_]
model = previewmodel.PreviewModel(items=items)
model.delayedScanUpdate()
browser = previewbrowser.PreviewBrowser()
browser.setModel(model)
PageTemplates = dlg.addPage(sc_icon("Templates.svg"), "Templates", browser)
browser.activated.connect(lambda: openselectedbutton.click())
recent = [
previewmodel.PreviewItem(name=item.title, path=item.path)
for item in self.recent_schemes
]
model = previewmodel.PreviewModel(items=recent)
browser = previewbrowser.PreviewBrowser()
browser.setModel(model)
model.delayedScanUpdate()
PageRecent = dlg.addPage(self.recent_action.icon(), "Recent", browser)
browser.activated.connect(lambda: openselectedbutton.click())
dlg.setPageEnabled(PageRecent, model.rowCount() > 0)
page = SingleLinkPage(
image=QImage(
resource_path("icons/getting-started-video-tutorials.png")),
heading="Getting Started",
link=QUrl("https://www.youtube.com/watch?v=3nMcI4Hxm7c"),
)
page.setContentsMargins(25, 25, 25, 25)
PageGetStarted = dlg.addPage(
canvas_icons("YouTube.svg"),
"Get Started",
page,
)
buttons = dlg.buttonBox()
buttons.setVisible(True)
buttons.setStandardButtons(QDialogButtonBox.Open | QDialogButtonBox.Cancel)
# choose the selected workflow button
openselectedbutton = buttons.button(QDialogButtonBox.Open)
openselectedbutton.setText(self.tr("Open"))
openselectedbutton.setToolTip("Open the selected workflow")
openselectedbutton.setDefault(True)
newbutton = QPushButton("New", toolTip="Create a new workflow")
s = QShortcut(QKeySequence.New, newbutton)
s.activated.connect(newbutton.click)
buttons.addButton(newbutton, QDialogButtonBox.AcceptRole)
openexisting = QPushButton("Open Existing\N{HORIZONTAL ELLIPSIS}",
toolTip="Open an existing workflow file")
s = QShortcut(QKeySequence.Open, dlg)
s.activated.connect(openexisting.click)
buttons.addButton(openexisting, QDialogButtonBox.AcceptRole)
settings = QSettings()
show_start_key = "startup/show-welcome-screen"
show_start = QCheckBox("Show at startup",
checked=settings.value(show_start_key,
True,
type=bool))
# Abusing ResetRole to push the check box to the left in all button
# layouts.
buttons.addButton(show_start, QDialogButtonBox.ResetRole)
def update_show_at_startup(value):
settings.setValue(show_start_key, value)
show_start.toggled.connect(update_show_at_startup)
def on_page_changed(index):
if index == PageWelcome:
openselectedbutton.setEnabled(True)
elif index == PageTemplates:
openselectedbutton.setEnabled(bool(examples))
elif index == PageRecent:
openselectedbutton.setEnabled(bool(recent))
elif index == PageGetStarted:
openselectedbutton.setEnabled(False)
else:
openselectedbutton.setEnabled(False)
dlg.currentIndexChanged.connect(on_page_changed)
def open_example_workflow(path):
# open a workflow without filename/directory tracking.
wf = self.new_scheme_from(path)
if self.is_transient():
window = self
else:
window = self.create_new_window()
window.show()
window.raise_()
window.activateWindow()
window.set_new_scheme(wf)
def open_url(url):
return QDesktopServices.openUrl(QUrl(url))
def on_clicked(button):
current = dlg.currentIndex()
path = None
open_workflow_file = None
if current == PageWelcome:
open_workflow_file = open_url
elif current == PageTemplates:
open_workflow_file = open_example_workflow
elif current == PageRecent:
open_workflow_file = self.open_scheme_file
if button is openselectedbutton and \
current in {PageTemplates, PageRecent}:
w = dlg.widget(current)
assert isinstance(w, previewbrowser.PreviewBrowser)
assert w.currentIndex() != -1
model = w.model()
item = model.item(w.currentIndex())
path = item.path()
elif button is openselectedbutton and current == PageWelcome:
w = dlg.widget(current)
assert isinstance(w, FancyWelcomeScreen)
assert w.currentIndex() != -1
path = w.item(w.currentIndex()).property("path")
if path is not None:
open_workflow_file(path)
dlg.accept()
buttons.clicked.connect(on_clicked)
def on_open_existing():
filedlg = self._open_workflow_dialog()
filedlg.fileSelected.connect(self.open_scheme_file)
filedlg.accepted.connect(dlg.accept)
filedlg.exec()
openexisting.clicked.connect(on_open_existing)
def new_window():
if not self.is_transient():
self.new_workflow_window()
dlg.accept()
newbutton.clicked.connect(new_window)
dlg.show()
def check_for_updates():
settings = QSettings()
check_updates = settings.value('startup/check-updates', True, type=bool)
last_check_time = settings.value('startup/last-update-check-time',
0,
type=int)
ONE_DAY = 86400
if check_updates and time.time() - last_check_time > ONE_DAY:
settings.setValue('startup/last-update-check-time', int(time.time()))
from urllib.request import urlopen, Request
from Orange.version import version as current
class GetLatestVersion(QThread):
resultReady = pyqtSignal(str)
def run(self):
try:
request = Request('https://orange.biolab.si/version/',
headers={
'Accept': 'text/plain',
'Accept-Encoding': 'gzip, deflate',
'Connection': 'close',
'User-Agent': self.ua_string()
})
contents = urlopen(request, timeout=10).read().decode()
# Nothing that this fails with should make Orange crash
except Exception: # pylint: disable=broad-except
log.exception('Failed to check for updates')
else:
self.resultReady.emit(contents)
@staticmethod
def ua_string():
is_anaconda = 'Continuum' in sys.version or 'conda' in sys.version
return 'Orange{orange_version}:Python{py_version}:{platform}:{conda}'.format(
orange_version=current,
py_version='.'.join(sys.version[:3]),
platform=sys.platform,
conda='Anaconda' if is_anaconda else '',
)
def compare_versions(latest):
version = pkg_resources.parse_version
if version(latest) <= version(current):
return
question = QMessageBox(
QMessageBox.Information,
'Orange Update Available',
'A newer version of Orange is available.<br><br>'
'<b>Current version:</b> {}<br>'
'<b>Latest version:</b> {}'.format(current, latest),
textFormat=Qt.RichText)
ok = question.addButton('Download Now', question.AcceptRole)
question.setDefaultButton(ok)
question.addButton('Remind Later', question.RejectRole)
question.finished.connect(
lambda: question.clickedButton() == ok and QDesktopServices.
openUrl(QUrl("https://orange.biolab.si/download/")))
question.show()
thread = GetLatestVersion()
thread.resultReady.connect(compare_versions)
thread.start()
return thread
def main(argv=None):
if argv is None:
argv = sys.argv
usage = "usage: %prog [options] [workflow_file]"
parser = optparse.OptionParser(usage=usage)
parser.add_option("--no-discovery",
action="store_true",
help="Don't run widget discovery "
"(use full cache instead)")
parser.add_option("--force-discovery",
action="store_true",
help="Force full widget discovery "
"(invalidate cache)")
parser.add_option("--clear-widget-settings",
action="store_true",
help="Remove stored widget setting")
parser.add_option("--no-welcome",
action="store_true",
help="Don't show welcome dialog.")
parser.add_option("--no-splash",
action="store_true",
help="Don't show splash screen.")
parser.add_option("-l",
"--log-level",
help="Logging level (0, 1, 2, 3, 4)",
type="int",
default=1)
parser.add_option("--style",
help="QStyle to use",
type="str",
default=None)
parser.add_option("--stylesheet",
help="Application level CSS style sheet to use",
type="str",
default="orange.qss")
parser.add_option("--qt",
help="Additional arguments for QApplication",
type="str",
default=None)
(options, args) = parser.parse_args(argv[1:])
levels = [
logging.CRITICAL, logging.ERROR, logging.WARN, logging.INFO,
logging.DEBUG
]
# Fix streams before configuring logging (otherwise it will store
# and write to the old file descriptors)
fix_win_pythonw_std_stream()
# Try to fix fonts on OSX Mavericks
fix_osx_10_9_private_font()
# File handler should always be at least INFO level so we need
# the application root level to be at least at INFO.
root_level = min(levels[options.log_level], logging.INFO)
rootlogger = logging.getLogger(canvas.__name__)
rootlogger.setLevel(root_level)
# Initialize SQL query and execution time logger (in SqlTable)
sql_level = min(levels[options.log_level], logging.INFO)
make_sql_logger(sql_level)
# Standard output stream handler at the requested level
stream_hander = logging.StreamHandler()
stream_hander.setLevel(level=levels[options.log_level])
rootlogger.addHandler(stream_hander)
log.info("Starting 'Orange Canvas' application.")
qt_argv = argv[:1]
if options.style is not None:
qt_argv += ["-style", options.style]
if options.qt is not None:
qt_argv += shlex.split(options.qt)
qt_argv += args
log.debug("Starting CanvasApplicaiton with argv = %r.", qt_argv)
app = CanvasApplication(qt_argv)
# NOTE: config.init() must be called after the QApplication constructor
config.init()
clear_settings_flag = os.path.join(config.widget_settings_dir(),
"DELETE_ON_START")
if options.clear_widget_settings or \
os.path.isfile(clear_settings_flag):
log.info("Clearing widget settings")
shutil.rmtree(config.widget_settings_dir(), ignore_errors=True)
file_handler = logging.FileHandler(filename=os.path.join(
config.log_dir(), "canvas.log"),
mode="w")
file_handler.setLevel(root_level)
rootlogger.addHandler(file_handler)
# intercept any QFileOpenEvent requests until the main window is
# fully initialized.
# NOTE: The QApplication must have the executable ($0) and filename
# arguments passed in argv otherwise the FileOpen events are
# triggered for them (this is done by Cocoa, but QApplicaiton filters
# them out if passed in argv)
open_requests = []
def onrequest(url):
log.info("Received an file open request %s", url)
open_requests.append(url)
app.fileOpenRequest.connect(onrequest)
settings = QSettings()
stylesheet = options.stylesheet
stylesheet_string = None
if stylesheet != "none":
if os.path.isfile(stylesheet):
stylesheet_string = open(stylesheet, "rb").read()
else:
if not os.path.splitext(stylesheet)[1]:
# no extension
stylesheet = os.path.extsep.join([stylesheet, "qss"])
pkg_name = canvas.__name__
resource = "styles/" + stylesheet
if pkg_resources.resource_exists(pkg_name, resource):
stylesheet_string = \
pkg_resources.resource_string(pkg_name, resource).decode()
base = pkg_resources.resource_filename(pkg_name, "styles")
pattern = re.compile(
r"^\s@([a-zA-Z0-9_]+?)\s*:\s*([a-zA-Z0-9_/]+?);\s*$",
flags=re.MULTILINE)
matches = pattern.findall(stylesheet_string)
for prefix, search_path in matches:
QDir.addSearchPath(prefix, os.path.join(base, search_path))
log.info("Adding search path %r for prefix, %r",
search_path, prefix)
stylesheet_string = pattern.sub("", stylesheet_string)
else:
log.info("%r style sheet not found.", stylesheet)
# Add the default canvas_icons search path
dirpath = os.path.abspath(os.path.dirname(canvas.__file__))
QDir.addSearchPath("canvas_icons", os.path.join(dirpath, "icons"))
canvas_window = CanvasMainWindow()
canvas_window.setWindowIcon(config.application_icon())
if stylesheet_string is not None:
canvas_window.setStyleSheet(stylesheet_string)
if not options.force_discovery:
reg_cache = cache.registry_cache()
else:
reg_cache = None
widget_discovery = qt.QtWidgetDiscovery(cached_descriptions=reg_cache)
widget_registry = qt.QtWidgetRegistry()
widget_discovery.found_category.connect(widget_registry.register_category)
widget_discovery.found_widget.connect(widget_registry.register_widget)
want_splash = \
settings.value("startup/show-splash-screen", True, type=bool) and \
not options.no_splash
if want_splash:
pm, rect = config.splash_screen()
splash_screen = SplashScreen(pixmap=pm, textRect=rect)
splash_screen.setFont(QFont("Helvetica", 12))
color = QColor("#FFD39F")
def show_message(message):
splash_screen.showMessage(message, color=color)
widget_discovery.discovery_start.connect(splash_screen.show)
widget_discovery.discovery_process.connect(show_message)
widget_discovery.discovery_finished.connect(splash_screen.hide)
log.info("Running widget discovery process.")
cache_filename = os.path.join(cache_dir(), "widget-registry.pck")
if options.no_discovery:
widget_registry = pickle.load(open(cache_filename, "rb"))
widget_registry = qt.QtWidgetRegistry(widget_registry)
else:
widget_discovery.run(config.widgets_entry_points())
# Store cached descriptions
cache.save_registry_cache(widget_discovery.cached_descriptions)
pickle.dump(WidgetRegistry(widget_registry),
open(cache_filename, "wb"))
set_global_registry(widget_registry)
canvas_window.set_widget_registry(widget_registry)
canvas_window.show()
canvas_window.raise_()
want_welcome = \
settings.value("startup/show-welcome-screen", True, type=bool) \
and not options.no_welcome
# Process events to make sure the canvas_window layout has
# a chance to activate (the welcome dialog is modal and will
# block the event queue, plus we need a chance to receive open file
# signals when running without a splash screen)
app.processEvents()
app.fileOpenRequest.connect(canvas_window.open_scheme_file)
if want_welcome and not args and not open_requests:
canvas_window.welcome_dialog()
elif args:
log.info("Loading a scheme from the command line argument %r", args[0])
canvas_window.load_scheme(args[0])
elif open_requests:
log.info("Loading a scheme from an `QFileOpenEvent` for %r",
open_requests[-1])
canvas_window.load_scheme(open_requests[-1].toLocalFile())
# If run for the first time, open a browser tab with a survey
show_survey = settings.value("startup/show-survey", True, type=bool)
if show_survey:
question = QMessageBox(
QMessageBox.Question, 'Orange Survey',
'We would like to know more about how our software is used.\n\n'
'Would you care to fill our short 1-minute survey?',
QMessageBox.Yes | QMessageBox.No)
question.setDefaultButton(QMessageBox.Yes)
later = question.addButton('Ask again later', QMessageBox.NoRole)
question.setEscapeButton(later)
def handle_response(result):
if result == QMessageBox.Yes:
success = QDesktopServices.openUrl(
QUrl("http://orange.biolab.si/survey/short.html"))
settings.setValue("startup/show-survey", not success)
else:
settings.setValue("startup/show-survey",
result != QMessageBox.No)
question.finished.connect(handle_response)
question.show()
# Tee stdout and stderr into Output dock
log_view = canvas_window.log_view()
stdout = TextStream()
stdout.stream.connect(log_view.write)
if sys.stdout:
stdout.stream.connect(sys.stdout.write)
stdout.flushed.connect(sys.stdout.flush)
stderr = TextStream()
error_writer = log_view.formated(color=Qt.red)
stderr.stream.connect(error_writer.write)
if sys.stderr:
stderr.stream.connect(sys.stderr.write)
stderr.flushed.connect(sys.stderr.flush)
log.info("Entering main event loop.")
try:
with patch('sys.excepthook',
ExceptHook(stream=stderr, canvas=canvas_window,
handledException=handle_exception)),\
patch('sys.stderr', stderr),\
patch('sys.stdout', stdout):
status = app.exec_()
except BaseException:
log.error("Error in main event loop.", exc_info=True)
canvas_window.deleteLater()
app.processEvents()
app.flush()
del canvas_window
# Collect any cycles before deleting the QApplication instance
gc.collect()
del app
return status
def fix_qt_plugins_path():
"""
Attempt to fix qt plugins path if it is invalid.
https://www.riverbankcomputing.com/pipermail/pyqt/2018-November/041089.html
"""
# PyQt5 loads a runtime generated qt.conf file into qt's resource system
# but does not correctly (INI) encode non-latin1 characters in paths
# (https://www.riverbankcomputing.com/pipermail/pyqt/2018-November/041089.html)
# Need to be careful not to mess the plugins path when not installed as
# a (delocated) wheel.
s = QSettings(":qt/etc/qt.conf", QSettings.IniFormat)
path = s.value("Paths/Prefix", type=str)
# does the ':qt/etc/qt.conf' exist and has prefix path that does not exist
if path and os.path.exists(path):
return
# Use QLibraryInfo.location to resolve the plugins dir
pluginspath = QLibraryInfo.location(QLibraryInfo.PluginsPath)
# Check effective library paths. Someone might already set the search
# paths (including via QT_PLUGIN_PATH). QApplication.libraryPaths() returns
# existing paths only.
paths = QApplication.libraryPaths()
if paths:
return
if AnyQt.USED_API == "pyqt5":
import PyQt5.QtCore as qc
elif AnyQt.USED_API == "pyside2":
import PySide2.QtCore as qc
else:
return
def normpath(path):
return os.path.normcase(os.path.normpath(path))
# guess the appropriate path relative to the installation dir based on the
# PyQt5 installation dir and the 'recorded' plugins path. I.e. match the
# 'PyQt5' directory name in the recorded path and replace the 'invalid'
# prefix with the real PyQt5 install dir.
def maybe_match_prefix(prefix: str, path: str) -> Optional[str]:
"""
>>> maybe_match_prefix("aa/bb/cc", "/a/b/cc/a/b")
"aa/bb/cc/a/b"
>>> maybe_match_prefix("aa/bb/dd", "/a/b/cc/a/b")
None
"""
prefix = normpath(prefix)
path = normpath(path)
basename = os.path.basename(prefix)
path_components = path.split(os.sep)
# find the (rightmost) basename in the prefix_components
idx = None
try:
start = 0
while True:
idx = path_components.index(basename, start)
start = idx + 1
except ValueError:
pass
if idx is None:
return
return os.path.join(prefix, *path_components[idx + 1:])
newpath = maybe_match_prefix(
os.path.dirname(qc.__file__), pluginspath
)
if newpath is not None and os.path.exists(newpath):
QApplication.addLibraryPath(newpath)
def check_for_updates():
settings = QSettings()
check_updates = settings.value('startup/check-updates', True, type=bool)
last_check_time = settings.value('startup/last-update-check-time',
0,
type=int)
ONE_DAY = 86400
if check_updates and time.time() - last_check_time > ONE_DAY:
settings.setValue('startup/last-update-check-time', int(time.time()))
from Orange.version import version as current
class GetLatestVersion(QThread):
resultReady = pyqtSignal(str)
def run(self):
try:
request = Request('https://orange.biolab.si/version/',
headers={
'Accept': 'text/plain',
'Accept-Encoding': 'gzip, deflate',
'Connection': 'close',
'User-Agent': self.ua_string()
})
contents = urlopen(request, timeout=10).read().decode()
# Nothing that this fails with should make Orange crash
except Exception: # pylint: disable=broad-except
log.exception('Failed to check for updates')
else:
self.resultReady.emit(contents)
@staticmethod
def ua_string():
is_anaconda = 'Continuum' in sys.version or 'conda' in sys.version
return 'Orange{orange_version}:Python{py_version}:{platform}:{conda}'.format(
orange_version=current,
py_version='.'.join(sys.version[:3]),
platform=sys.platform,
conda='Anaconda' if is_anaconda else '',
)
def compare_versions(latest):
version = pkg_resources.parse_version
skipped = settings.value('startup/latest-skipped-version',
"",
type=str)
if version(latest) <= version(current) or \
latest == skipped:
return
questionButtons = NotificationWidget.Ok | NotificationWidget.Close
question = NotificationWidget(
icon=QIcon(gui.resource_filename('icons/Dlg_down3.png')),
title='Orange Update Available',
text='Current version: <b>{}</b><br>'
'Latest version: <b>{}</b>'.format(current, latest),
textFormat=Qt.RichText,
standardButtons=questionButtons,
acceptLabel="Download",
rejectLabel="Skip this Version")
def handle_click(b):
if question.buttonRole(b) == question.RejectRole:
settings.setValue('startup/latest-skipped-version', latest)
if question.buttonRole(b) == question.AcceptRole:
QDesktopServices.openUrl(
QUrl("https://orange.biolab.si/download/"))
question.clicked.connect(handle_click)
NotificationOverlay.registerNotification(question)
thread = GetLatestVersion()
thread.resultReady.connect(compare_versions)
thread.start()
return thread
return None
def main(argv=None):
# Allow termination with CTRL + C
signal.signal(signal.SIGINT, signal.SIG_DFL)
# Disable pyqtgraph's atexit and QApplication.aboutToQuit cleanup handlers.
pyqtgraph.setConfigOption("exitCleanup", False)
if argv is None:
argv = sys.argv
usage = "usage: %prog [options] [workflow_file]"
parser = optparse.OptionParser(usage=usage)
parser.add_option("--no-discovery",
action="store_true",
help="Don't run widget discovery "
"(use full cache instead)")
parser.add_option("--force-discovery",
action="store_true",
help="Force full widget discovery "
"(invalidate cache)")
parser.add_option("--clear-widget-settings",
action="store_true",
help="Remove stored widget setting")
parser.add_option("--no-welcome",
action="store_true",
help="Don't show welcome dialog.")
parser.add_option("--no-splash",
action="store_true",
help="Don't show splash screen.")
parser.add_option("-l",
"--log-level",
help="Logging level (0, 1, 2, 3, 4)",
type="int",
default=1)
parser.add_option("--style",
help="QStyle to use",
type="str",
default=None)
parser.add_option("--stylesheet",
help="Application level CSS style sheet to use",
type="str",
default=None)
parser.add_option("--qt",
help="Additional arguments for QApplication",
type="str",
default=None)
(options, args) = parser.parse_args(argv[1:])
levels = [
logging.CRITICAL, logging.ERROR, logging.WARN, logging.INFO,
logging.DEBUG
]
# Fix streams before configuring logging (otherwise it will store
# and write to the old file descriptors)
fix_win_pythonw_std_stream()
# Try to fix macOS automatic window tabbing (Sierra and later)
fix_macos_nswindow_tabbing()
logging.basicConfig(
level=levels[options.log_level],
handlers=[make_stdout_handler(levels[options.log_level])])
# set default application configuration
config_ = config.Config()
canvasconfig.set_default(config_)
log.info("Starting 'Orange Canvas' application.")
qt_argv = argv[:1]
style = options.style
defaultstylesheet = "orange.qss"
fusiontheme = None
if style is not None:
if style.startswith("fusion:"):
qt_argv += ["-style", "fusion"]
_, _, fusiontheme = style.partition(":")
else:
qt_argv += ["-style", style]
if options.qt is not None:
qt_argv += shlex.split(options.qt)
qt_argv += args
if QT_VERSION >= 0x50600:
CanvasApplication.setAttribute(Qt.AA_UseHighDpiPixmaps)
log.debug("Starting CanvasApplicaiton with argv = %r.", qt_argv)
app = CanvasApplication(qt_argv)
config_.init()
if app.style().metaObject().className() == "QFusionStyle":
if fusiontheme == "breeze-dark":
app.setPalette(breeze_dark())
defaultstylesheet = "darkorange.qss"
palette = app.palette()
if style is None and palette.color(QPalette.Window).value() < 127:
log.info("Switching default stylesheet to darkorange")
defaultstylesheet = "darkorange.qss"
# Initialize SQL query and execution time logger (in SqlTable)
sql_level = min(levels[options.log_level], logging.INFO)
make_sql_logger(sql_level)
clear_settings_flag = os.path.join(widget_settings_dir(),
"DELETE_ON_START")
if options.clear_widget_settings or \
os.path.isfile(clear_settings_flag):
log.info("Clearing widget settings")
shutil.rmtree(widget_settings_dir(), ignore_errors=True)
# Set http_proxy environment variables, after (potentially) clearing settings
fix_set_proxy_env()
# Setup file log handler for the select logger list - this is always
# at least INFO
level = min(levels[options.log_level], logging.INFO)
file_handler = logging.FileHandler(filename=os.path.join(
config.log_dir(), "canvas.log"),
mode="w")
formatter = logging.Formatter(
"%(asctime)s:%(levelname)s:%(name)s: %(message)s")
file_handler.setFormatter(formatter)
file_handler.setLevel(level)
stream = TextStream()
stream_handler = logging.StreamHandler(stream)
stream_handler.setFormatter(formatter)
stream_handler.setLevel(level)
for namespace in ["orangecanvas", "orangewidget", "Orange"]:
logger = logging.getLogger(namespace)
logger.setLevel(level)
logger.addHandler(file_handler)
logger.addHandler(stream_handler)
# intercept any QFileOpenEvent requests until the main window is
# fully initialized.
# NOTE: The QApplication must have the executable ($0) and filename
# arguments passed in argv otherwise the FileOpen events are
# triggered for them (this is done by Cocoa, but QApplicaiton filters
# them out if passed in argv)
open_requests = []
def onrequest(url):
log.info("Received an file open request %s", url)
path = url.path()
exists = QFile(path).exists()
if exists and \
('pydevd.py' not in url.path() and # PyCharm debugger
'run_profiler.py' not in url.path()): # PyCharm profiler
open_requests.append(url)
app.fileOpenRequest.connect(onrequest)
settings = QSettings()
settings.setValue('startup/launch-count',
settings.value('startup/launch-count', 0, int) + 1)
if settings.value("reporting/send-statistics", False, type=bool) \
and is_release:
UsageStatistics.set_enabled(True)
stylesheet = options.stylesheet or defaultstylesheet
stylesheet_string = None
if stylesheet != "none":
if os.path.isfile(stylesheet):
with open(stylesheet, "r") as f:
stylesheet_string = f.read()
else:
if not os.path.splitext(stylesheet)[1]:
# no extension
stylesheet = os.path.extsep.join([stylesheet, "qss"])
pkg_name = orangecanvas.__name__
resource = "styles/" + stylesheet
if pkg_resources.resource_exists(pkg_name, resource):
stylesheet_string = \
pkg_resources.resource_string(pkg_name, resource).decode()
base = pkg_resources.resource_filename(pkg_name, "styles")
pattern = re.compile(
r"^\s@([a-zA-Z0-9_]+?)\s*:\s*([a-zA-Z0-9_/]+?);\s*$",
flags=re.MULTILINE)
matches = pattern.findall(stylesheet_string)
for prefix, search_path in matches:
QDir.addSearchPath(prefix, os.path.join(base, search_path))
log.info("Adding search path %r for prefix, %r",
search_path, prefix)
stylesheet_string = pattern.sub("", stylesheet_string)
else:
log.info("%r style sheet not found.", stylesheet)
# Add the default canvas_icons search path
dirpath = os.path.abspath(os.path.dirname(orangecanvas.__file__))
QDir.addSearchPath("canvas_icons", os.path.join(dirpath, "icons"))
canvas_window = MainWindow()
canvas_window.setAttribute(Qt.WA_DeleteOnClose)
canvas_window.setWindowIcon(config.application_icon())
canvas_window.connect_output_stream(stream)
# initialize notification server, set to initial canvas
notif_server = NotificationServer()
canvas.notification_server_instance = notif_server
canvas_window.set_notification_server(notif_server)
if stylesheet_string is not None:
canvas_window.setStyleSheet(stylesheet_string)
if not options.force_discovery:
reg_cache = cache.registry_cache()
else:
reg_cache = None
widget_registry = qt.QtWidgetRegistry()
widget_discovery = config_.widget_discovery(widget_registry,
cached_descriptions=reg_cache)
want_splash = \
settings.value("startup/show-splash-screen", True, type=bool) and \
not options.no_splash
if want_splash:
pm, rect = config.splash_screen()
splash_screen = SplashScreen(pixmap=pm, textRect=rect)
splash_screen.setFont(QFont("Helvetica", 12))
color = QColor("#FFD39F")
def show_message(message):
splash_screen.showMessage(message, color=color)
widget_registry.category_added.connect(show_message)
log.info("Running widget discovery process.")
cache_filename = os.path.join(config.cache_dir(), "widget-registry.pck")
if options.no_discovery:
with open(cache_filename, "rb") as f:
widget_registry = pickle.load(f)
widget_registry = qt.QtWidgetRegistry(widget_registry)
else:
if want_splash:
splash_screen.show()
widget_discovery.run(config.widgets_entry_points())
if want_splash:
splash_screen.hide()
splash_screen.deleteLater()
# Store cached descriptions
cache.save_registry_cache(widget_discovery.cached_descriptions)
with open(cache_filename, "wb") as f:
pickle.dump(WidgetRegistry(widget_registry), f)
set_global_registry(widget_registry)
canvas_window.set_widget_registry(widget_registry)
canvas_window.show()
canvas_window.raise_()
want_welcome = \
settings.value("startup/show-welcome-screen", True, type=bool) \
and not options.no_welcome
# Process events to make sure the canvas_window layout has
# a chance to activate (the welcome dialog is modal and will
# block the event queue, plus we need a chance to receive open file
# signals when running without a splash screen)
app.processEvents()
app.fileOpenRequest.connect(canvas_window.open_scheme_file)
if args:
log.info("Loading a scheme from the command line argument %r", args[0])
canvas_window.load_scheme(args[0])
elif open_requests:
log.info("Loading a scheme from an `QFileOpenEvent` for %r",
open_requests[-1])
canvas_window.load_scheme(open_requests[-1].toLocalFile())
else:
swp_loaded = canvas_window.ask_load_swp_if_exists()
if not swp_loaded and want_welcome:
canvas_window.welcome_dialog()
# local references prevent destruction
update_check = check_for_updates()
send_stat = send_usage_statistics()
pull_notifs = pull_notifications()
# Tee stdout and stderr into Output dock
log_view = canvas_window.output_view()
stdout = TextStream()
stdout.stream.connect(log_view.write)
if sys.stdout:
stdout.stream.connect(sys.stdout.write)
stdout.flushed.connect(sys.stdout.flush)
stderr = TextStream()
error_writer = log_view.formatted(color=Qt.red)
stderr.stream.connect(error_writer.write)
if sys.stderr:
stderr.stream.connect(sys.stderr.write)
stderr.flushed.connect(sys.stderr.flush)
log.info("Entering main event loop.")
excepthook = ExceptHook(stream=stderr)
excepthook.handledException.connect(handle_exception)
try:
with closing(stdout),\
closing(stderr),\
closing(stream), \
patch('sys.excepthook', excepthook),\
patch('sys.stderr', stderr),\
patch('sys.stdout', stdout):
status = app.exec_()
except BaseException:
log.error("Error in main event loop.", exc_info=True)
status = 42
del canvas_window
del update_check
del send_stat
del pull_notifs
app.processEvents()
app.flush()
# Collect any cycles before deleting the QApplication instance
gc.collect()
del app
if status == 96:
log.info('Restarting via exit code 96.')
run_after_exit([sys.executable, sys.argv[0]])
return status
def __init__(self, data):
icon = QApplication.style().standardIcon(QStyle.SP_MessageBoxWarning)
F = self.DataField
def _finished(*, key=(data.get(F.MODULE),
data.get(F.WIDGET_MODULE)),
filename=data.get(F.WIDGET_SCHEME)):
self._cache.add(key)
try:
os.remove(filename)
except Exception:
pass
super().__init__(None, Qt.Window, modal=True,
sizeGripEnabled=True, windowIcon=icon,
windowTitle='Unexpected Error',
finished=_finished)
self._data = data
layout = QVBoxLayout(self)
self.setLayout(layout)
labels = QWidget(self)
labels_layout = QHBoxLayout(self)
labels.setLayout(labels_layout)
labels_layout.addWidget(QLabel(pixmap=icon.pixmap(50, 50)))
labels_layout.addWidget(QLabel(
'The program encountered an unexpected error. Please<br>'
'report it anonymously to the developers.<br><br>'
'The following data will be reported:'))
labels_layout.addStretch(1)
layout.addWidget(labels)
font = QFont('Monospace', 10)
font.setStyleHint(QFont.Monospace)
font.setFixedPitch(True)
textbrowser = QTextBrowser(self,
font=font,
openLinks=False,
lineWrapMode=QTextBrowser.NoWrap,
anchorClicked=QDesktopServices.openUrl)
layout.addWidget(textbrowser)
def _reload_text():
add_scheme = cb.isChecked()
settings.setValue('error-reporting/add-scheme', add_scheme)
lines = ['<table>']
for k, v in data.items():
if k.startswith('_'):
continue
_v, v = v, escape(str(v))
if k == F.WIDGET_SCHEME:
if not add_scheme:
continue
v = '<a href="{}">{}</a>'.format(urljoin('file:', pathname2url(_v)), v)
if k in (F.STACK_TRACE, F.LOCALS):
v = v.replace('\n', '<br>').replace(' ', ' ')
lines.append('<tr><th align="left">{}:</th><td>{}</td></tr>'.format(k, v))
lines.append('</table>')
textbrowser.setHtml(''.join(lines))
settings = QSettings()
cb = QCheckBox(
'Include workflow (data will NOT be transmitted)', self,
checked=settings.value('error-reporting/add-scheme', True, type=bool))
cb.stateChanged.connect(_reload_text)
_reload_text()
layout.addWidget(cb)
buttons = QWidget(self)
buttons_layout = QHBoxLayout(self)
buttons.setLayout(buttons_layout)
buttons_layout.addWidget(
QPushButton('Send Report (Thanks!)', default=True, clicked=self.accept))
buttons_layout.addWidget(QPushButton("Don't Send", default=False, clicked=self.reject))
layout.addWidget(buttons)