def unfold_menu(self):
"""
展开/收起菜单
通过修改左侧widget的最大宽度来实现，展开时设置为180，
收起时设置为60，刚好是一个图标左右的宽度
"""
self.tree_menu_action = QPropertyAnimation(self.widget,
b'maximumWidth')
self.tree_menu_action.stop()
mini_width = 50
start = self.widget.width()
if self.widget.width() > mini_width:
icon = self.resource.font_icon('ei.chevron-right', color="#d2d2d2")
end = mini_width
self.menu_is_close = True
# 在收缩的时候看看是不是有列表是展开的
# 如果有则先对齐收缩再收缩左侧导航栏
if self.expanded_item:
self.expanded_item.setExpanded(False)
else:
icon = self.resource.font_icon('ei.chevron-left', color="#d2d2d2")
end = 180
self.menu_is_close = False
self.pushButton_8.setIcon(icon)
self.tree_menu_action.setStartValue(start)
self.tree_menu_action.setEndValue(end)
self.tree_menu_action.setEasingCurve(QEasingCurve.InOutBack)
self.tree_menu_action.setDuration(500)
self.tree_menu_action.start()
def _fade_setup(self):
""" """
self._fade_running = True
self.effect = QGraphicsOpacityEffect(self)
self.setGraphicsEffect(self.effect)
self.anim = QPropertyAnimation(self.effect,
to_binary_string("opacity"))
def add_flash_animation(widget: QWidget,
duration: int = 300,
color: Array = (0.5, 0.5, 0.5, 0.5)):
"""Add flash animation to widget to highlight certain action (e.g. taking a screenshot).
Parameters
----------
widget : QWidget
Any Qt widget.
duration : int
Duration of the flash animation.
color : Array
Color of the flash animation. By default, we use light gray.
"""
color = transform_color(color)[0]
color = (255 * color).astype("int")
effect = QGraphicsColorizeEffect(widget)
widget.setGraphicsEffect(effect)
widget._flash_animation = QPropertyAnimation(effect, b"color")
widget._flash_animation.setStartValue(QColor(0, 0, 0, 0))
widget._flash_animation.setEndValue(QColor(0, 0, 0, 0))
widget._flash_animation.setLoopCount(1)
# let's make sure to remove the animation from the widget because
# if we don't, the widget will actually be black and white.
widget._flash_animation.finished.connect(
partial(remove_flash_animation, weakref.ref(widget)))
widget._flash_animation.start()
# now set an actual time for the flashing and an intermediate color
widget._flash_animation.setDuration(duration)
widget._flash_animation.setKeyValueAt(0.1, QColor(*color))
def __init__(
self,
message: str,
severity: Union[
str, NotificationSeverity
] = NotificationSeverity.WARNING,
source: Optional[str] = None,
actions: ActionSequence = (),
):
"""[summary]
"""
super().__init__(None)
# FIXME: this does not work with multiple viewers.
# we need a way to detect the viewer in which the error occured.
for wdg in QApplication.topLevelWidgets():
if isinstance(wdg, QMainWindow):
try:
# TODO: making the canvas the parent makes it easier to
# move/resize, but also means that the notification can get
# clipped on the left if the canvas is too small.
canvas = wdg.centralWidget().children()[1].canvas.native
self.setParent(canvas)
canvas.resized.connect(self.move_to_bottom_right)
break
except Exception:
pass
self.setupUi()
self.setAttribute(Qt.WA_DeleteOnClose)
self.setup_buttons(actions)
self.setMouseTracking(True)
self.severity_icon.setText(NotificationSeverity(severity).as_icon())
self.message.setText(message)
if source:
self.source_label.setText(f'Source: {source}')
self.close_button.clicked.connect(self.close)
self.expand_button.clicked.connect(self.toggle_expansion)
self.timer = None
self.opacity = QGraphicsOpacityEffect()
self.setGraphicsEffect(self.opacity)
self.opacity_anim = QPropertyAnimation(self.opacity, b"opacity", self)
self.geom_anim = QPropertyAnimation(self, b"geometry", self)
self.move_to_bottom_right()
def __init__(self):
super(TourTestWindow, self).__init__()
self.setGeometry(300, 100, 400, 600)
self.setWindowTitle('Exploring QMainWindow')
self.exit = QAction('Exit', self)
self.exit.setStatusTip('Exit program')
# create the menu bar
menubar = self.menuBar()
file_ = menubar.addMenu('&File')
file_.addAction(self.exit)
# create the status bar
self.statusBar()
# QWidget or its instance needed for box layout
self.widget = QWidget(self)
self.button = QPushButton('test')
self.button1 = QPushButton('1')
self.button2 = QPushButton('2')
effect = QGraphicsOpacityEffect(self.button2)
self.button2.setGraphicsEffect(effect)
self.anim = QPropertyAnimation(effect, to_binary_string("opacity"))
self.anim.setStartValue(0.01)
self.anim.setEndValue(1.0)
self.anim.setDuration(500)
lay = QVBoxLayout()
lay.addWidget(self.button)
lay.addStretch()
lay.addWidget(self.button1)
lay.addWidget(self.button2)
self.widget.setLayout(lay)
self.setCentralWidget(self.widget)
self.button.clicked.connect(self.action1)
self.button1.clicked.connect(self.action2)
self.tour = AnimatedTour(self)
def __init__(
self,
message: str,
severity: Union[str, NotificationSeverity] = 'WARNING',
source: Optional[str] = None,
actions: ActionSequence = (),
):
super().__init__()
from ..qt_main_window import _QtMainWindow
current_window = _QtMainWindow.current()
if current_window is not None:
canvas = current_window.qt_viewer._canvas_overlay
self.setParent(canvas)
canvas.resized.connect(self.move_to_bottom_right)
self.setupUi()
self.setAttribute(Qt.WA_DeleteOnClose)
self.setup_buttons(actions)
self.setMouseTracking(True)
self.severity_icon.setText(NotificationSeverity(severity).as_icon())
self.message.setText(message)
if source:
self.source_label.setText(
trans._('Source: {source}', source=source)
)
self.close_button.clicked.connect(self.close)
self.expand_button.clicked.connect(self.toggle_expansion)
self.timer = QTimer()
self.opacity = QGraphicsOpacityEffect()
self.setGraphicsEffect(self.opacity)
self.opacity_anim = QPropertyAnimation(self.opacity, b"opacity", self)
self.geom_anim = QPropertyAnimation(self, b"geometry", self)
self.move_to_bottom_right()
def __init__(self):
super(TourTestWindow, self).__init__()
self.setGeometry(300, 100, 400, 600)
self.setWindowTitle('Exploring QMainWindow')
self.exit = QAction('Exit', self)
self.exit.setStatusTip('Exit program')
# create the menu bar
menubar = self.menuBar()
file_ = menubar.addMenu('&File')
file_.addAction(self.exit)
# create the status bar
self.statusBar()
# QWidget or its instance needed for box layout
self.widget = QWidget(self)
self.button = QPushButton('test')
self.button1 = QPushButton('1')
self.button2 = QPushButton('2')
effect = QGraphicsOpacityEffect(self.button2)
self.button2.setGraphicsEffect(effect)
self.anim = QPropertyAnimation(effect, to_binary_string("opacity"))
self.anim.setStartValue(0.01)
self.anim.setEndValue(1.0)
self.anim.setDuration(500)
lay = QVBoxLayout()
lay.addWidget(self.button)
lay.addStretch()
lay.addWidget(self.button1)
lay.addWidget(self.button2)
self.widget.setLayout(lay)
self.setCentralWidget(self.widget)
self.button.clicked.connect(self.action1)
self.button1.clicked.connect(self.action2)
self.tour = AnimatedTour(self)
def set_switch_animation(self,
callback=None,
duration=200,
start=1,
end=0,
animation=None):
"""设置切换效果"""
self.fade_out_animation = animation or self.fade_out_animation or QPropertyAnimation(
self, b'windowOpacity')
while self.signals:
key, slot = self.signals.popitem()
try:
self.fade_out_animation.finished.disconnect(slot)
except TypeError:
pass
self.fade_out_animation.stop()
self.fade_out_animation.setDuration(duration)
self.fade_out_animation.setStartValue(start)
self.fade_out_animation.setEndValue(end)
if callback:
self.signals.update({id(callback): callback})
self.fade_out_animation.finished.connect(callback)
self.fade_out_animation.start()
class NapariQtNotification(QDialog):
"""Notification dialog frame, appears at the bottom right of the canvas.
By default, only the first line of the notification is shown, and the text
is elided. Double-clicking on the text (or clicking the chevron icon) will
expand to show the full notification. The dialog will autmatically
disappear in ``DISMISS_AFTER`` milliseconds, unless hovered or clicked.
Parameters
----------
message : str
The message that will appear in the notification
severity : str or NotificationSeverity, optional
Severity level {'error', 'warning', 'info', 'none'}. Will determine
the icon associated with the message.
by default NotificationSeverity.WARNING.
source : str, optional
A source string for the notifcation (intended to show the module and
or package responsible for the notification), by default None
actions : list of tuple, optional
A sequence of 2-tuples, where each tuple is a string and a callable.
Each tuple will be used to create button in the dialog, where the text
on the button is determine by the first item in the tuple, and a
callback function to call when the button is pressed is the second item
in the tuple. by default ()
"""
MAX_OPACITY = 0.9
FADE_IN_RATE = 220
FADE_OUT_RATE = 120
DISMISS_AFTER = 4000
MIN_WIDTH = 400
message: MultilineElidedLabel
source_label: QLabel
severity_icon: QLabel
def __init__(
self,
message: str,
severity: Union[str, NotificationSeverity] = 'WARNING',
source: Optional[str] = None,
actions: ActionSequence = (),
):
"""[summary]"""
super().__init__(None)
# FIXME: this does not work with multiple viewers.
# we need a way to detect the viewer in which the error occured.
for wdg in QApplication.topLevelWidgets():
if isinstance(wdg, QMainWindow):
try:
# TODO: making the canvas the parent makes it easier to
# move/resize, but also means that the notification can get
# clipped on the left if the canvas is too small.
canvas = wdg.centralWidget().children()[1].canvas.native
self.setParent(canvas)
canvas.resized.connect(self.move_to_bottom_right)
break
except Exception:
pass
self.setupUi()
self.setAttribute(Qt.WA_DeleteOnClose)
self.setup_buttons(actions)
self.setMouseTracking(True)
self.severity_icon.setText(NotificationSeverity(severity).as_icon())
self.message.setText(message)
if source:
self.source_label.setText(
trans._('Source: {source}', source=source)
)
self.close_button.clicked.connect(self.close)
self.expand_button.clicked.connect(self.toggle_expansion)
self.timer = QTimer()
self.opacity = QGraphicsOpacityEffect()
self.setGraphicsEffect(self.opacity)
self.opacity_anim = QPropertyAnimation(self.opacity, b"opacity", self)
self.geom_anim = QPropertyAnimation(self, b"geometry", self)
self.move_to_bottom_right()
def move_to_bottom_right(self, offset=(8, 8)):
"""Position widget at the bottom right edge of the parent."""
if not self.parent():
return
sz = self.parent().size() - self.size() - QSize(*offset)
self.move(QPoint(sz.width(), sz.height()))
def slide_in(self):
"""Run animation that fades in the dialog with a slight slide up."""
geom = self.geometry()
self.geom_anim.setDuration(self.FADE_IN_RATE)
self.geom_anim.setStartValue(geom.translated(0, 20))
self.geom_anim.setEndValue(geom)
self.geom_anim.setEasingCurve(QEasingCurve.OutQuad)
# fade in
self.opacity_anim.setDuration(self.FADE_IN_RATE)
self.opacity_anim.setStartValue(0)
self.opacity_anim.setEndValue(self.MAX_OPACITY)
self.geom_anim.start()
self.opacity_anim.start()
def show(self):
"""Show the message with a fade and slight slide in from the bottom."""
super().show()
self.slide_in()
if self.DISMISS_AFTER > 0:
self.timer.setInterval(self.DISMISS_AFTER)
self.timer.setSingleShot(True)
self.timer.timeout.connect(self.close)
self.timer.start()
def mouseMoveEvent(self, event):
"""On hover, stop the self-destruct timer"""
self.timer.stop()
def mouseDoubleClickEvent(self, event):
"""Expand the notification on double click."""
self.toggle_expansion()
def close(self):
"""Fade out then close."""
self.opacity_anim.setDuration(self.FADE_OUT_RATE)
self.opacity_anim.setStartValue(self.MAX_OPACITY)
self.opacity_anim.setEndValue(0)
self.opacity_anim.start()
self.opacity_anim.finished.connect(super().close)
def toggle_expansion(self):
"""Toggle the expanded state of the notification frame."""
self.contract() if self.property('expanded') else self.expand()
self.timer.stop()
def expand(self):
"""Expanded the notification so that the full message is visible."""
curr = self.geometry()
self.geom_anim.setDuration(100)
self.geom_anim.setStartValue(curr)
new_height = self.sizeHint().height()
delta = new_height - curr.height()
self.geom_anim.setEndValue(
QRect(curr.x(), curr.y() - delta, curr.width(), new_height)
)
self.geom_anim.setEasingCurve(QEasingCurve.OutQuad)
self.geom_anim.start()
self.setProperty('expanded', True)
self.style().unpolish(self.expand_button)
self.style().polish(self.expand_button)
def contract(self):
"""Contract notification to a single elided line of the message."""
geom = self.geometry()
self.geom_anim.setDuration(100)
self.geom_anim.setStartValue(geom)
dlt = geom.height() - self.minimumHeight()
self.geom_anim.setEndValue(
QRect(geom.x(), geom.y() + dlt, geom.width(), geom.height() - dlt)
)
self.geom_anim.setEasingCurve(QEasingCurve.OutQuad)
self.geom_anim.start()
self.setProperty('expanded', False)
self.style().unpolish(self.expand_button)
self.style().polish(self.expand_button)
def setupUi(self):
"""Set up the UI during initialization."""
self.setWindowFlags(Qt.SubWindow)
self.setMinimumWidth(self.MIN_WIDTH)
self.setMaximumWidth(self.MIN_WIDTH)
self.setMinimumHeight(40)
self.setSizeGripEnabled(False)
self.setModal(False)
self.verticalLayout = QVBoxLayout(self)
self.verticalLayout.setContentsMargins(2, 2, 2, 2)
self.verticalLayout.setSpacing(0)
self.row1_widget = QWidget(self)
self.row1 = QHBoxLayout(self.row1_widget)
self.row1.setContentsMargins(12, 12, 12, 8)
self.row1.setSpacing(4)
self.severity_icon = QLabel(self.row1_widget)
self.severity_icon.setObjectName("severity_icon")
self.severity_icon.setMinimumWidth(30)
self.severity_icon.setMaximumWidth(30)
self.row1.addWidget(self.severity_icon, alignment=Qt.AlignTop)
self.message = MultilineElidedLabel(self.row1_widget)
self.message.setMinimumWidth(self.MIN_WIDTH - 200)
self.message.setSizePolicy(
QSizePolicy.Expanding, QSizePolicy.Expanding
)
self.row1.addWidget(self.message, alignment=Qt.AlignTop)
self.expand_button = QPushButton(self.row1_widget)
self.expand_button.setObjectName("expand_button")
self.expand_button.setCursor(Qt.PointingHandCursor)
self.expand_button.setMaximumWidth(20)
self.expand_button.setFlat(True)
self.row1.addWidget(self.expand_button, alignment=Qt.AlignTop)
self.close_button = QPushButton(self.row1_widget)
self.close_button.setObjectName("close_button")
self.close_button.setCursor(Qt.PointingHandCursor)
self.close_button.setMaximumWidth(20)
self.close_button.setFlat(True)
self.row1.addWidget(self.close_button, alignment=Qt.AlignTop)
self.verticalLayout.addWidget(self.row1_widget, 1)
self.row2_widget = QWidget(self)
self.row2_widget.hide()
self.row2 = QHBoxLayout(self.row2_widget)
self.source_label = QLabel(self.row2_widget)
self.source_label.setObjectName("source_label")
self.row2.addWidget(self.source_label, alignment=Qt.AlignBottom)
self.row2.addStretch()
self.row2.setContentsMargins(12, 2, 16, 12)
self.row2_widget.setMaximumHeight(34)
self.row2_widget.setStyleSheet(
'QPushButton{'
'padding: 4px 12px 4px 12px; '
'font-size: 11px;'
'min-height: 18px; border-radius: 0;}'
)
self.verticalLayout.addWidget(self.row2_widget, 0)
self.setProperty('expanded', False)
self.resize(self.MIN_WIDTH, 40)
def setup_buttons(self, actions: ActionSequence = ()):
"""Add buttons to the dialog.
Parameters
----------
actions : tuple, optional
A sequence of 2-tuples, where each tuple is a string and a
callable. Each tuple will be used to create button in the dialog,
where the text on the button is determine by the first item in the
tuple, and a callback function to call when the button is pressed
is the second item in the tuple. by default ()
"""
if isinstance(actions, dict):
actions = list(actions.items())
for text, callback in actions:
btn = QPushButton(text)
def call_back_with_self(callback, self):
"""
we need a higher order function this to capture the reference to self.
"""
def _inner():
return callback(self)
return _inner
btn.clicked.connect(call_back_with_self(callback, self))
btn.clicked.connect(self.close)
self.row2.addWidget(btn)
if actions:
self.row2_widget.show()
self.setMinimumHeight(
self.row2_widget.maximumHeight() + self.minimumHeight()
)
def sizeHint(self):
"""Return the size required to show the entire message."""
return QSize(
super().sizeHint().width(),
self.row2_widget.height() + self.message.sizeHint().height(),
)
@classmethod
def from_notification(
cls, notification: Notification
) -> NapariQtNotification:
from ...utils.notifications import ErrorNotification
actions = notification.actions
if isinstance(notification, ErrorNotification):
def show_tb(parent):
tbdialog = QDialog(parent=parent.parent())
tbdialog.setModal(True)
# this is about the minimum width to not get rewrap
# and the minimum height to not have scrollbar
tbdialog.resize(650, 270)
tbdialog.setLayout(QVBoxLayout())
text = QTextEdit()
text.setHtml(notification.as_html())
text.setReadOnly(True)
btn = QPushButton('Enter Debugger')
def _enter_debug_mode():
btn.setText(
'Now Debugging. Please quit debugger in console '
'to continue'
)
_debug_tb(notification.exception.__traceback__)
btn.setText('Enter Debugger')
btn.clicked.connect(_enter_debug_mode)
tbdialog.layout().addWidget(text)
tbdialog.layout().addWidget(btn, 0, Qt.AlignRight)
tbdialog.show()
actions = tuple(notification.actions) + (
(trans._('View Traceback'), show_tb),
)
else:
actions = notification.actions
return cls(
message=notification.message,
severity=notification.severity,
source=notification.source,
actions=actions,
)
@classmethod
def show_notification(cls, notification: Notification):
from ...utils.settings import SETTINGS
# after https://github.com/napari/napari/issues/2370,
# the os.getenv can be removed (and NAPARI_CATCH_ERRORS retired)
if (
os.getenv("NAPARI_CATCH_ERRORS") not in ('0', 'False')
and notification.severity
>= SETTINGS.application.gui_notification_level
):
cls.from_notification(notification).show()
class TourTestWindow(QMainWindow):
""" """
sig_resized = Signal("QResizeEvent")
sig_moved = Signal("QMoveEvent")
def __init__(self):
super(TourTestWindow, self).__init__()
self.setGeometry(300, 100, 400, 600)
self.setWindowTitle('Exploring QMainWindow')
self.exit = QAction('Exit', self)
self.exit.setStatusTip('Exit program')
# create the menu bar
menubar = self.menuBar()
file_ = menubar.addMenu('&File')
file_.addAction(self.exit)
# create the status bar
self.statusBar()
# QWidget or its instance needed for box layout
self.widget = QWidget(self)
self.button = QPushButton('test')
self.button1 = QPushButton('1')
self.button2 = QPushButton('2')
effect = QGraphicsOpacityEffect(self.button2)
self.button2.setGraphicsEffect(effect)
self.anim = QPropertyAnimation(effect, to_binary_string("opacity"))
self.anim.setStartValue(0.01)
self.anim.setEndValue(1.0)
self.anim.setDuration(500)
lay = QVBoxLayout()
lay.addWidget(self.button)
lay.addStretch()
lay.addWidget(self.button1)
lay.addWidget(self.button2)
self.widget.setLayout(lay)
self.setCentralWidget(self.widget)
self.button.clicked.connect(self.action1)
self.button1.clicked.connect(self.action2)
self.tour = AnimatedTour(self)
def action1(self):
""" """
frames = get_tour('test')
index = 0
dic = {'last': 0, 'tour': frames}
self.tour.set_tour(index, dic, self)
self.tour.start_tour()
def action2(self):
""" """
self.anim.start()
def resizeEvent(self, event):
"""Reimplement Qt method"""
QMainWindow.resizeEvent(self, event)
self.sig_resized.emit(event)
def moveEvent(self, event):
"""Reimplement Qt method"""
QMainWindow.moveEvent(self, event)
self.sig_moved.emit(event)
def _fade_setup(self):
""" """
self._fade_running = True
self.effect = QGraphicsOpacityEffect(self)
self.setGraphicsEffect(self.effect)
self.anim = QPropertyAnimation(self.effect, to_binary_string("opacity"))
class FadingDialog(QDialog):
"""A general fade in/fade out QDialog with some builtin functions"""
sig_key_pressed = Signal()
def __init__(self, parent, opacity, duration, easing_curve):
super(FadingDialog, self).__init__(parent)
self.parent = parent
self.opacity_min = min(opacity)
self.opacity_max = max(opacity)
self.duration_fadein = duration[0]
self.duration_fadeout = duration[-1]
self.easing_curve_in = easing_curve[0]
self.easing_curve_out = easing_curve[-1]
self.effect = None
self.anim = None
self._fade_running = False
self._funcs_before_fade_in = []
self._funcs_after_fade_in = []
self._funcs_before_fade_out = []
self._funcs_after_fade_out = []
self.setModal(False)
def _run(self, funcs):
""" """
for func in funcs:
func()
def _run_before_fade_in(self):
""" """
self._run(self._funcs_before_fade_in)
def _run_after_fade_in(self):
""" """
self._run(self._funcs_after_fade_in)
def _run_before_fade_out(self):
""" """
self._run(self._funcs_before_fade_out)
def _run_after_fade_out(self):
""" """
self._run(self._funcs_after_fade_out)
def _set_fade_finished(self):
""" """
self._fade_running = False
def _fade_setup(self):
""" """
self._fade_running = True
self.effect = QGraphicsOpacityEffect(self)
self.setGraphicsEffect(self.effect)
self.anim = QPropertyAnimation(self.effect, to_binary_string("opacity"))
# --- public api
def fade_in(self, on_finished_connect):
""" """
self._run_before_fade_in()
self._fade_setup()
self.show()
self.raise_()
self.anim.setEasingCurve(self.easing_curve_in)
self.anim.setStartValue(self.opacity_min)
self.anim.setEndValue(self.opacity_max)
self.anim.setDuration(self.duration_fadein)
self.anim.finished.connect(on_finished_connect)
self.anim.finished.connect(self._set_fade_finished)
self.anim.finished.connect(self._run_after_fade_in)
self.anim.start()
def fade_out(self, on_finished_connect):
""" """
self._run_before_fade_out()
self._fade_setup()
self.anim.setEasingCurve(self.easing_curve_out)
self.anim.setStartValue(self.opacity_max)
self.anim.setEndValue(self.opacity_min)
self.anim.setDuration(self.duration_fadeout)
self.anim.finished.connect(on_finished_connect)
self.anim.finished.connect(self._set_fade_finished)
self.anim.finished.connect(self._run_after_fade_out)
self.anim.start()
def is_fade_running(self):
""" """
return self._fade_running
def set_funcs_before_fade_in(self, funcs):
""" """
self._funcs_before_fade_in = funcs
def set_funcs_after_fade_in(self, funcs):
""" """
self._funcs_after_fade_in = funcs
def set_funcs_before_fade_out(self, funcs):
""" """
self._funcs_before_fade_out = funcs
def set_funcs_after_fade_out(self, funcs):
""" """
self._funcs_after_fade_out = funcs
class TourTestWindow(QMainWindow):
""" """
sig_resized = Signal("QResizeEvent")
sig_moved = Signal("QMoveEvent")
def __init__(self):
super(TourTestWindow, self).__init__()
self.setGeometry(300, 100, 400, 600)
self.setWindowTitle('Exploring QMainWindow')
self.exit = QAction('Exit', self)
self.exit.setStatusTip('Exit program')
# create the menu bar
menubar = self.menuBar()
file_ = menubar.addMenu('&File')
file_.addAction(self.exit)
# create the status bar
self.statusBar()
# QWidget or its instance needed for box layout
self.widget = QWidget(self)
self.button = QPushButton('test')
self.button1 = QPushButton('1')
self.button2 = QPushButton('2')
effect = QGraphicsOpacityEffect(self.button2)
self.button2.setGraphicsEffect(effect)
self.anim = QPropertyAnimation(effect, to_binary_string("opacity"))
self.anim.setStartValue(0.01)
self.anim.setEndValue(1.0)
self.anim.setDuration(500)
lay = QVBoxLayout()
lay.addWidget(self.button)
lay.addStretch()
lay.addWidget(self.button1)
lay.addWidget(self.button2)
self.widget.setLayout(lay)
self.setCentralWidget(self.widget)
self.button.clicked.connect(self.action1)
self.button1.clicked.connect(self.action2)
self.tour = AnimatedTour(self)
def action1(self):
""" """
frames = get_tour('test')
index = 0
dic = {'last': 0, 'tour': frames}
self.tour.set_tour(index, dic, self)
self.tour.start_tour()
def action2(self):
""" """
self.anim.start()
def resizeEvent(self, event):
"""Reimplement Qt method"""
QMainWindow.resizeEvent(self, event)
self.sig_resized.emit(event)
def moveEvent(self, event):
"""Reimplement Qt method"""
QMainWindow.moveEvent(self, event)
self.sig_moved.emit(event)
def fadeIn(self):
self._effects = []
for action in self.actions():
effect = QGraphicsOpacityEffect(self)
self._effects.append(effect)
for widget in action.associatedWidgets():
if widget is not self:
widget.setGraphicsEffect(effect)
a = QPropertyAnimation(effect, b"opacity")
self._effects.append(a)
a.setDuration(1000)
a.setStartValue(0)
a.setEndValue(1)
a.setEasingCurve(QEasingCurve.OutBack)
a.start(QPropertyAnimation.DeleteWhenStopped)
class SimpleThemeSignal(SimpleThemeDecoration):
# 左侧展开的item 索引
expanded_item = None
tree_menu_action = None
menu_is_close = False
def set_signal(self):
super(SimpleThemeSignal, self).set_signal()
self.pushButton_6.clicked.connect(self.change_normal)
self.pushButton_5.clicked.connect(self.accept)
self.pushButton_7.clicked.connect(self.showMinimized)
self.pushButton.clicked.connect(self.unfold_menu)
self.pushButton_8.clicked.connect(self.unfold_menu)
self.treeWidget.itemClicked.connect(self.tree_unfold)
self.pushButton_2.clicked.connect(self.show_about)
@staticmethod
def show_about():
"""点击关于"""
about = Badge(source=AboutActivity)
about.center()
about.exec()
def change_normal(self):
"""
切换到恢复窗口大小按钮,
"""
self.layout().setContentsMargins(*[0] * 4)
self.showMaximized() # 先实现窗口最大化
self.pushButton_6.setIcon(
self.resource.font_icon("fa.window-restore", color="black"))
self.pushButton_6.setToolTip(self.resource.translate('Bar',
"恢复")) # 更改按钮提示
self.pushButton_6.disconnect() # 断开原本的信号槽连接
self.pushButton_6.clicked.connect(self.change_max) # 重新连接信号和槽
# noinspection PyUnresolvedReferences
def change_max(self):
"""
切换到最大化按钮
"""
self.layout().setContentsMargins(*[self.border_width] * 4)
self.showNormal()
self.pushButton_6.setIcon(
self.resource.font_icon("fa.window-maximize", color="black"))
self.pushButton_6.setToolTip(self.resource.translate('Bar', "最大化"))
self.pushButton_6.disconnect() # 关闭信号与原始槽连接
self.pushButton_6.clicked.connect(self.change_normal)
def mouseDoubleClickEvent(self, event):
"""鼠标双击(在y轴上小于标题栏高度的双击均被认为是双击头部，随后进行窗体的最大化跟恢复效果)"""
if self.bar and event.pos().y() < self.bar.y() + self.bar.height() \
and event.pos().x() < self.bar.x() + self.bar.width():
self.pushButton_6.click()
def unfold_menu(self):
"""
展开/收起菜单
通过修改左侧widget的最大宽度来实现，展开时设置为180，
收起时设置为60，刚好是一个图标左右的宽度
"""
self.tree_menu_action = QPropertyAnimation(self.widget,
b'maximumWidth')
self.tree_menu_action.stop()
mini_width = 50
start = self.widget.width()
if self.widget.width() > mini_width:
icon = self.resource.font_icon('ei.chevron-right', color="#d2d2d2")
end = mini_width
self.menu_is_close = True
# 在收缩的时候看看是不是有列表是展开的
# 如果有则先对齐收缩再收缩左侧导航栏
if self.expanded_item:
self.expanded_item.setExpanded(False)
else:
icon = self.resource.font_icon('ei.chevron-left', color="#d2d2d2")
end = 180
self.menu_is_close = False
self.pushButton_8.setIcon(icon)
self.tree_menu_action.setStartValue(start)
self.tree_menu_action.setEndValue(end)
self.tree_menu_action.setEasingCurve(QEasingCurve.InOutBack)
self.tree_menu_action.setDuration(500)
self.tree_menu_action.start()
def tree_unfold(self, item: QTreeWidgetItem):
"""
点击存在子项的父类项，如果其没有展开则展开，
同时关闭其他已经展开的top item，
反之，若点击已经展开的item则将其关闭
"""
# 不允许在收缩菜单时对子列表进行展开
if not self.menu_is_close and item.childCount():
item = self.treeWidget.currentItem()
self.expanded_item = item
if item.isExpanded():
item.setExpanded(False)
return
item.setExpanded(True)
elif item.parent() is self.expanded_item:
pass
elif self.expanded_item and self.expanded_item.isExpanded():
self.expanded_item.setExpanded(False)
class FadingDialog(QDialog):
"""A general fade in/fade out QDialog with some builtin functions"""
sig_key_pressed = Signal()
def __init__(self, parent, opacity, duration, easing_curve):
super(FadingDialog, self).__init__(parent)
self.parent = parent
self.opacity_min = min(opacity)
self.opacity_max = max(opacity)
self.duration_fadein = duration[0]
self.duration_fadeout = duration[-1]
self.easing_curve_in = easing_curve[0]
self.easing_curve_out = easing_curve[-1]
self.effect = None
self.anim = None
self._fade_running = False
self._funcs_before_fade_in = []
self._funcs_after_fade_in = []
self._funcs_before_fade_out = []
self._funcs_after_fade_out = []
self.setModal(False)
def _run(self, funcs):
""" """
for func in funcs:
func()
def _run_before_fade_in(self):
""" """
self._run(self._funcs_before_fade_in)
def _run_after_fade_in(self):
""" """
self._run(self._funcs_after_fade_in)
def _run_before_fade_out(self):
""" """
self._run(self._funcs_before_fade_out)
def _run_after_fade_out(self):
""" """
self._run(self._funcs_after_fade_out)
def _set_fade_finished(self):
""" """
self._fade_running = False
def _fade_setup(self):
""" """
self._fade_running = True
self.effect = QGraphicsOpacityEffect(self)
self.setGraphicsEffect(self.effect)
self.anim = QPropertyAnimation(self.effect,
to_binary_string("opacity"))
# --- public api
def fade_in(self, on_finished_connect):
""" """
self._run_before_fade_in()
self._fade_setup()
self.show()
self.raise_()
self.anim.setEasingCurve(self.easing_curve_in)
self.anim.setStartValue(self.opacity_min)
self.anim.setEndValue(self.opacity_max)
self.anim.setDuration(self.duration_fadein)
self.anim.finished.connect(on_finished_connect)
self.anim.finished.connect(self._set_fade_finished)
self.anim.finished.connect(self._run_after_fade_in)
self.anim.start()
def fade_out(self, on_finished_connect):
""" """
self._run_before_fade_out()
self._fade_setup()
self.anim.setEasingCurve(self.easing_curve_out)
self.anim.setStartValue(self.opacity_max)
self.anim.setEndValue(self.opacity_min)
self.anim.setDuration(self.duration_fadeout)
self.anim.finished.connect(on_finished_connect)
self.anim.finished.connect(self._set_fade_finished)
self.anim.finished.connect(self._run_after_fade_out)
self.anim.start()
def is_fade_running(self):
""" """
return self._fade_running
def set_funcs_before_fade_in(self, funcs):
""" """
self._funcs_before_fade_in = funcs
def set_funcs_after_fade_in(self, funcs):
""" """
self._funcs_after_fade_in = funcs
def set_funcs_before_fade_out(self, funcs):
""" """
self._funcs_before_fade_out = funcs
def set_funcs_after_fade_out(self, funcs):
""" """
self._funcs_after_fade_out = funcs
class NapariNotification(QDialog):
"""Notification dialog frame, appears at the bottom right of the canvas.
By default, only the first line of the notification is shown, and the text
is elided. Double-clicking on the text (or clicking the chevron icon) will
expand to show the full notification. The dialog will autmatically
disappear in ``DISMISS_AFTER`` milliseconds, unless hovered or clicked.
Parameters
----------
message : str
The message that will appear in the notification
severity : str or NotificationSeverity, optional
Severity level {'error', 'warning', 'info', 'none'}. Will determine
the icon associated with the message.
by default NotificationSeverity.WARNING.
source : str, optional
A source string for the notifcation (intended to show the module and
or package responsible for the notification), by default None
actions : list of tuple, optional
A sequence of 2-tuples, where each tuple is a string and a callable.
Each tuple will be used to create button in the dialog, where the text
on the button is determine by the first item in the tuple, and a
callback function to call when the button is pressed is the second item
in the tuple. by default ()
"""
MAX_OPACITY = 0.9
FADE_IN_RATE = 220
FADE_OUT_RATE = 120
DISMISS_AFTER = 4000
MIN_WIDTH = 400
def __init__(
self,
message: str,
severity: Union[
str, NotificationSeverity] = NotificationSeverity.WARNING,
source: Optional[str] = None,
actions: ActionSequence = (),
):
"""[summary]
"""
super().__init__(None)
# FIXME: this does not work with multiple viewers.
# we need a way to detect the viewer in which the error occured.
for wdg in QApplication.topLevelWidgets():
if isinstance(wdg, QMainWindow):
try:
# TODO: making the canvas the parent makes it easier to
# move/resize, but also means that the notification can get
# clipped on the left if the canvas is too small.
canvas = wdg.centralWidget().children()[1].canvas.native
self.setParent(canvas)
canvas.resized.connect(self.move_to_bottom_right)
break
except Exception:
pass
self.setupUi()
self.setAttribute(Qt.WA_DeleteOnClose)
self.setup_buttons(actions)
self.setMouseTracking(True)
self.severity_icon.setText(NotificationSeverity(severity).as_icon())
self.message.setText(message)
if source:
self.source_label.setText(f'Source: {source}')
self.close_button.clicked.connect(self.close)
self.expand_button.clicked.connect(self.toggle_expansion)
self.timer = None
self.opacity = QGraphicsOpacityEffect()
self.setGraphicsEffect(self.opacity)
self.opacity_anim = QPropertyAnimation(self.opacity, b"opacity", self)
self.geom_anim = QPropertyAnimation(self, b"geometry", self)
self.move_to_bottom_right()
def move_to_bottom_right(self, offset=(8, 8)):
"""Position widget at the bottom right edge of the parent."""
if not self.parent():
return
sz = self.parent().size() - self.size() - QSize(*offset)
self.move(QPoint(sz.width(), sz.height()))
def slide_in(self):
"""Run animation that fades in the dialog with a slight slide up."""
geom = self.geometry()
self.geom_anim.setDuration(self.FADE_IN_RATE)
self.geom_anim.setStartValue(geom.translated(0, 20))
self.geom_anim.setEndValue(geom)
self.geom_anim.setEasingCurve(QEasingCurve.OutQuad)
# fade in
self.opacity_anim.setDuration(self.FADE_IN_RATE)
self.opacity_anim.setStartValue(0)
self.opacity_anim.setEndValue(self.MAX_OPACITY)
self.geom_anim.start()
self.opacity_anim.start()
def show(self):
"""Show the message with a fade and slight slide in from the bottom."""
super().show()
self.slide_in()
self.timer = QTimer()
self.timer.setInterval(self.DISMISS_AFTER)
self.timer.setSingleShot(True)
self.timer.timeout.connect(self.close)
self.timer.start()
def mouseMoveEvent(self, event):
"""On hover, stop the self-destruct timer"""
self.timer.stop()
def mouseDoubleClickEvent(self, event):
"""Expand the notification on double click."""
self.toggle_expansion()
def close(self):
"""Fade out then close."""
self.opacity_anim.setDuration(self.FADE_OUT_RATE)
self.opacity_anim.setStartValue(self.MAX_OPACITY)
self.opacity_anim.setEndValue(0)
self.opacity_anim.start()
self.opacity_anim.finished.connect(super().close)
def toggle_expansion(self):
"""Toggle the expanded state of the notification frame."""
self.contract() if self.property('expanded') else self.expand()
self.timer.stop()
def expand(self):
"""Expanded the notification so that the full message is visible."""
curr = self.geometry()
self.geom_anim.setDuration(100)
self.geom_anim.setStartValue(curr)
new_height = self.sizeHint().height()
delta = new_height - curr.height()
self.geom_anim.setEndValue(
QRect(curr.x(),
curr.y() - delta, curr.width(), new_height))
self.geom_anim.setEasingCurve(QEasingCurve.OutQuad)
self.geom_anim.start()
self.setProperty('expanded', True)
self.style().unpolish(self.expand_button)
self.style().polish(self.expand_button)
def contract(self):
"""Contract notification to a single elided line of the message."""
geom = self.geometry()
self.geom_anim.setDuration(100)
self.geom_anim.setStartValue(geom)
dlt = geom.height() - self.minimumHeight()
self.geom_anim.setEndValue(
QRect(geom.x(),
geom.y() + dlt, geom.width(),
geom.height() - dlt))
self.geom_anim.setEasingCurve(QEasingCurve.OutQuad)
self.geom_anim.start()
self.setProperty('expanded', False)
self.style().unpolish(self.expand_button)
self.style().polish(self.expand_button)
def setupUi(self):
"""Set up the UI during initialization."""
self.setWindowFlags(Qt.SubWindow)
self.setMinimumWidth(self.MIN_WIDTH)
self.setMaximumWidth(self.MIN_WIDTH)
self.setMinimumHeight(40)
self.setSizeGripEnabled(False)
self.setModal(False)
self.verticalLayout = QVBoxLayout(self)
self.verticalLayout.setContentsMargins(2, 2, 2, 2)
self.verticalLayout.setSpacing(0)
self.row1_widget = QWidget(self)
self.row1 = QHBoxLayout(self.row1_widget)
self.row1.setContentsMargins(12, 12, 12, 8)
self.row1.setSpacing(4)
self.severity_icon = QLabel(self.row1_widget)
self.severity_icon.setObjectName("severity_icon")
self.severity_icon.setMinimumWidth(30)
self.severity_icon.setMaximumWidth(30)
self.row1.addWidget(self.severity_icon, alignment=Qt.AlignTop)
self.message = MultilineElidedLabel(self.row1_widget)
self.message.setMinimumWidth(self.MIN_WIDTH - 200)
self.message.setSizePolicy(QSizePolicy.Expanding,
QSizePolicy.Expanding)
self.row1.addWidget(self.message, alignment=Qt.AlignTop)
self.expand_button = QPushButton(self.row1_widget)
self.expand_button.setObjectName("expand_button")
self.expand_button.setCursor(Qt.PointingHandCursor)
self.expand_button.setMaximumWidth(20)
self.expand_button.setFlat(True)
self.row1.addWidget(self.expand_button, alignment=Qt.AlignTop)
self.close_button = QPushButton(self.row1_widget)
self.close_button.setObjectName("close_button")
self.close_button.setCursor(Qt.PointingHandCursor)
self.close_button.setMaximumWidth(20)
self.close_button.setFlat(True)
self.row1.addWidget(self.close_button, alignment=Qt.AlignTop)
self.verticalLayout.addWidget(self.row1_widget, 1)
self.row2_widget = QWidget(self)
self.row2_widget.hide()
self.row2 = QHBoxLayout(self.row2_widget)
self.source_label = QLabel(self.row2_widget)
self.source_label.setObjectName("source_label")
self.row2.addWidget(self.source_label, alignment=Qt.AlignBottom)
self.row2.addStretch()
self.row2.setContentsMargins(12, 2, 16, 12)
self.row2_widget.setMaximumHeight(34)
self.row2_widget.setStyleSheet('QPushButton{'
'padding: 4px 12px 4px 12px; '
'font-size: 11px;'
'min-height: 18px; border-radius: 0;}')
self.verticalLayout.addWidget(self.row2_widget, 0)
self.setProperty('expanded', False)
self.resize(self.MIN_WIDTH, 40)
def setup_buttons(self, actions: ActionSequence = ()):
"""Add buttons to the dialog.
Parameters
----------
actions : tuple, optional
A sequence of 2-tuples, where each tuple is a string and a
callable. Each tuple will be used to create button in the dialog,
where the text on the button is determine by the first item in the
tuple, and a callback function to call when the button is pressed
is the second item in the tuple. by default ()
"""
if isinstance(actions, dict):
actions = list(actions.items())
for text, callback in actions:
btn = QPushButton(text)
btn.clicked.connect(callback)
btn.clicked.connect(self.close)
self.row2.addWidget(btn)
if actions:
self.row2_widget.show()
self.setMinimumHeight(self.row2_widget.maximumHeight() +
self.minimumHeight())
def sizeHint(self):
"""Return the size required to show the entire message."""
return QSize(
super().sizeHint().width(),
self.row2_widget.height() + self.message.sizeHint().height(),
)
@classmethod
def from_exception(cls, exception: BaseException) -> 'NapariNotification':
"""Create a NapariNotifcation dialog from an exception object."""
# TODO: this method could be used to recognize various exception
# subclasses and populate the dialog accordingly.
msg = getattr(exception, 'message', str(exception))
severity = getattr(exception, 'severity', 'WARNING')
source = None
actions = getattr(exception, 'actions', ())
return cls(msg, severity, source, actions)
def fadeOut(self, callback, distance=-20):
duration = 200
self._effects = []
for action in self.actions():
for widget in action.associatedWidgets():
if widget is not self:
a = QPropertyAnimation(widget, b"pos", widget)
a.setStartValue(widget.pos())
a.setEndValue(widget.pos() + QPoint(0, distance))
self._effects.append(a)
a.setDuration(duration)
a.setEasingCurve(QEasingCurve.OutBack)
a.start(QPropertyAnimation.DeleteWhenStopped)
effect = QGraphicsOpacityEffect(self)
widget.setGraphicsEffect(effect)
self._effects.append(effect)
b = QPropertyAnimation(effect, b"opacity")
self._effects.append(b)
b.setDuration(duration)
b.setStartValue(1)
b.setEndValue(0)
b.setEasingCurve(QEasingCurve.OutBack)
b.start(QPropertyAnimation.DeleteWhenStopped)
b.finished.connect(partial(self.removeAction, action))
b.finished.connect(callback)
if not self.actions():
callback()
class NapariQtNotification(QDialog):
"""Notification dialog frame, appears at the bottom right of the canvas.
By default, only the first line of the notification is shown, and the text
is elided. Double-clicking on the text (or clicking the chevron icon) will
expand to show the full notification. The dialog will autmatically
disappear in ``DISMISS_AFTER`` milliseconds, unless hovered or clicked.
Parameters
----------
message : str
The message that will appear in the notification
severity : str or NotificationSeverity, optional
Severity level {'error', 'warning', 'info', 'none'}. Will determine
the icon associated with the message.
by default NotificationSeverity.WARNING.
source : str, optional
A source string for the notifcation (intended to show the module and
or package responsible for the notification), by default None
actions : list of tuple, optional
A sequence of 2-tuples, where each tuple is a string and a callable.
Each tuple will be used to create button in the dialog, where the text
on the button is determine by the first item in the tuple, and a
callback function to call when the button is pressed is the second item
in the tuple. by default ()
"""
MAX_OPACITY = 0.9
FADE_IN_RATE = 220
FADE_OUT_RATE = 120
DISMISS_AFTER = 4000
MIN_WIDTH = 400
MIN_EXPANSION = 18
message: QElidingLabel
source_label: QLabel
severity_icon: QLabel
def __init__(
self,
message: str,
severity: Union[str, NotificationSeverity] = 'WARNING',
source: Optional[str] = None,
actions: ActionSequence = (),
):
super().__init__()
from ..qt_main_window import _QtMainWindow
current_window = _QtMainWindow.current()
if current_window is not None:
canvas = current_window._qt_viewer._canvas_overlay
self.setParent(canvas)
canvas.resized.connect(self.move_to_bottom_right)
self.setupUi()
self.setAttribute(Qt.WA_DeleteOnClose)
self.setup_buttons(actions)
self.setMouseTracking(True)
self._update_icon(str(severity))
self.message.setText(message)
if source:
self.source_label.setText(
trans._('Source: {source}', source=source)
)
self.close_button.clicked.connect(self.close)
self.expand_button.clicked.connect(self.toggle_expansion)
self.timer = QTimer()
self.opacity = QGraphicsOpacityEffect()
self.setGraphicsEffect(self.opacity)
self.opacity_anim = QPropertyAnimation(self.opacity, b"opacity", self)
self.geom_anim = QPropertyAnimation(self, b"geometry", self)
self.move_to_bottom_right()
def _update_icon(self, severity: str):
"""Update the icon to match the severity level."""
from ...settings import get_settings
from ...utils.theme import get_theme
settings = get_settings()
theme = settings.appearance.theme
default_color = getattr(get_theme(theme, False), 'icon')
# FIXME: Should these be defined at the theme level?
# Currently there is a warning one
colors = {
'error': "#D85E38",
'warning': "#E3B617",
'info': default_color,
'debug': default_color,
'none': default_color,
}
color = colors.get(severity, default_color)
icon = QColoredSVGIcon.from_resources(severity)
self.severity_icon.setPixmap(icon.colored(color=color).pixmap(15, 15))
def move_to_bottom_right(self, offset=(8, 8)):
"""Position widget at the bottom right edge of the parent."""
if not self.parent():
return
sz = self.parent().size() - self.size() - QSize(*offset)
self.move(QPoint(sz.width(), sz.height()))
def slide_in(self):
"""Run animation that fades in the dialog with a slight slide up."""
geom = self.geometry()
self.geom_anim.setDuration(self.FADE_IN_RATE)
self.geom_anim.setStartValue(geom.translated(0, 20))
self.geom_anim.setEndValue(geom)
self.geom_anim.setEasingCurve(QEasingCurve.OutQuad)
# fade in
self.opacity_anim.setDuration(self.FADE_IN_RATE)
self.opacity_anim.setStartValue(0)
self.opacity_anim.setEndValue(self.MAX_OPACITY)
self.geom_anim.start()
self.opacity_anim.start()
def show(self):
"""Show the message with a fade and slight slide in from the bottom."""
super().show()
self.slide_in()
if self.DISMISS_AFTER > 0:
self.timer.setInterval(self.DISMISS_AFTER)
self.timer.setSingleShot(True)
self.timer.timeout.connect(self.close)
self.timer.start()
def mouseMoveEvent(self, event):
"""On hover, stop the self-destruct timer"""
self.timer.stop()
def mouseDoubleClickEvent(self, event):
"""Expand the notification on double click."""
self.toggle_expansion()
def close(self):
"""Fade out then close."""
self.opacity_anim.setDuration(self.FADE_OUT_RATE)
self.opacity_anim.setStartValue(self.MAX_OPACITY)
self.opacity_anim.setEndValue(0)
self.opacity_anim.start()
self.opacity_anim.finished.connect(super().close)
def toggle_expansion(self):
"""Toggle the expanded state of the notification frame."""
self.contract() if self.property('expanded') else self.expand()
self.timer.stop()
def expand(self):
"""Expanded the notification so that the full message is visible."""
curr = self.geometry()
self.geom_anim.setDuration(100)
self.geom_anim.setStartValue(curr)
new_height = self.sizeHint().height()
if new_height < curr.height():
# new height would shift notification down, ensure some expansion
new_height = curr.height() + self.MIN_EXPANSION
delta = new_height - curr.height()
self.geom_anim.setEndValue(
QRect(curr.x(), curr.y() - delta, curr.width(), new_height)
)
self.geom_anim.setEasingCurve(QEasingCurve.OutQuad)
self.geom_anim.start()
self.setProperty('expanded', True)
self.style().unpolish(self.expand_button)
self.style().polish(self.expand_button)
def contract(self):
"""Contract notification to a single elided line of the message."""
geom = self.geometry()
self.geom_anim.setDuration(100)
self.geom_anim.setStartValue(geom)
dlt = geom.height() - self.minimumHeight()
self.geom_anim.setEndValue(
QRect(geom.x(), geom.y() + dlt, geom.width(), geom.height() - dlt)
)
self.geom_anim.setEasingCurve(QEasingCurve.OutQuad)
self.geom_anim.start()
self.setProperty('expanded', False)
self.style().unpolish(self.expand_button)
self.style().polish(self.expand_button)
def setupUi(self):
"""Set up the UI during initialization."""
self.setWindowFlags(Qt.SubWindow)
self.setMinimumWidth(self.MIN_WIDTH)
self.setMaximumWidth(self.MIN_WIDTH)
self.setMinimumHeight(40)
self.setSizeGripEnabled(False)
self.setModal(False)
self.verticalLayout = QVBoxLayout(self)
self.verticalLayout.setContentsMargins(2, 2, 2, 2)
self.verticalLayout.setSpacing(0)
self.row1_widget = QWidget(self)
self.row1 = QHBoxLayout(self.row1_widget)
self.row1.setContentsMargins(12, 12, 12, 8)
self.row1.setSpacing(4)
self.severity_icon = QLabel(self.row1_widget)
self.severity_icon.setObjectName("severity_icon")
self.severity_icon.setMinimumWidth(30)
self.severity_icon.setMaximumWidth(30)
self.row1.addWidget(self.severity_icon, alignment=Qt.AlignTop)
self.message = QElidingLabel()
self.message.setWordWrap(True)
self.message.setTextInteractionFlags(Qt.TextSelectableByMouse)
self.message.setMinimumWidth(self.MIN_WIDTH - 200)
self.message.setSizePolicy(
QSizePolicy.Expanding, QSizePolicy.Expanding
)
self.row1.addWidget(self.message, alignment=Qt.AlignTop)
self.expand_button = QPushButton(self.row1_widget)
self.expand_button.setObjectName("expand_button")
self.expand_button.setCursor(Qt.PointingHandCursor)
self.expand_button.setMaximumWidth(20)
self.expand_button.setFlat(True)
self.row1.addWidget(self.expand_button, alignment=Qt.AlignTop)
self.close_button = QPushButton(self.row1_widget)
self.close_button.setObjectName("close_button")
self.close_button.setCursor(Qt.PointingHandCursor)
self.close_button.setMaximumWidth(20)
self.close_button.setFlat(True)
self.row1.addWidget(self.close_button, alignment=Qt.AlignTop)
self.verticalLayout.addWidget(self.row1_widget, 1)
self.row2_widget = QWidget(self)
self.row2_widget.hide()
self.row2 = QHBoxLayout(self.row2_widget)
self.source_label = QLabel(self.row2_widget)
self.source_label.setObjectName("source_label")
self.row2.addWidget(self.source_label, alignment=Qt.AlignBottom)
self.row2.addStretch()
self.row2.setContentsMargins(12, 2, 16, 12)
self.row2_widget.setMaximumHeight(34)
self.row2_widget.setStyleSheet(
'QPushButton{'
'padding: 4px 12px 4px 12px; '
'font-size: 11px;'
'min-height: 18px; border-radius: 0;}'
)
self.verticalLayout.addWidget(self.row2_widget, 0)
self.setProperty('expanded', False)
self.resize(self.MIN_WIDTH, 40)
def setup_buttons(self, actions: ActionSequence = ()):
"""Add buttons to the dialog.
Parameters
----------
actions : tuple, optional
A sequence of 2-tuples, where each tuple is a string and a
callable. Each tuple will be used to create button in the dialog,
where the text on the button is determine by the first item in the
tuple, and a callback function to call when the button is pressed
is the second item in the tuple. by default ()
"""
if isinstance(actions, dict):
actions = list(actions.items())
for text, callback in actions:
btn = QPushButton(text)
def call_back_with_self(callback, self):
"""
We need a higher order function this to capture the reference to self.
"""
def _inner():
return callback(self)
return _inner
btn.clicked.connect(call_back_with_self(callback, self))
btn.clicked.connect(self.close)
self.row2.addWidget(btn)
if actions:
self.row2_widget.show()
self.setMinimumHeight(
self.row2_widget.maximumHeight() + self.minimumHeight()
)
def sizeHint(self):
"""Return the size required to show the entire message."""
return QSize(
super().sizeHint().width(),
self.row2_widget.height() + self.message.sizeHint().height(),
)
@classmethod
def from_notification(
cls, notification: Notification
) -> NapariQtNotification:
from ...utils.notifications import ErrorNotification
actions = notification.actions
if isinstance(notification, ErrorNotification):
def show_tb(parent):
tbdialog = QDialog(parent=parent.parent())
tbdialog.setModal(True)
# this is about the minimum width to not get rewrap
# and the minimum height to not have scrollbar
tbdialog.resize(650, 270)
tbdialog.setLayout(QVBoxLayout())
text = QTextEdit()
theme = get_theme(
get_settings().appearance.theme, as_dict=False
)
_highlight = Pylighter( # noqa: F841
text.document(), "python", theme.syntax_style
)
text.setText(notification.as_text())
text.setReadOnly(True)
btn = QPushButton(trans._('Enter Debugger'))
def _enter_debug_mode():
btn.setText(
trans._(
'Now Debugging. Please quit debugger in console to continue'
)
)
_debug_tb(notification.exception.__traceback__)
btn.setText(trans._('Enter Debugger'))
btn.clicked.connect(_enter_debug_mode)
tbdialog.layout().addWidget(text)
tbdialog.layout().addWidget(btn, 0, Qt.AlignRight)
tbdialog.show()
actions = tuple(notification.actions) + (
(trans._('View Traceback'), show_tb),
)
else:
actions = notification.actions
return cls(
message=notification.message,
severity=notification.severity,
source=notification.source,
actions=actions,
)
@classmethod
@ensure_main_thread
def show_notification(cls, notification: Notification):
from ...settings import get_settings
settings = get_settings()
# after https://github.com/napari/napari/issues/2370,
# the os.getenv can be removed (and NAPARI_CATCH_ERRORS retired)
if (
notification.severity
>= settings.application.gui_notification_level
):
cls.from_notification(notification).show()
