def eventFilter(self, obj: QObject, event: QEvent):
if obj.objectName() == "lineEdit":
if event.type() == QEvent.DragEnter:
new_method.lineEdit_dragEnterEvent(event)
return True
if event.type() == QEvent.Drop:
new_method.lineEdit_dropEvent(self, event)
return True
return QObject.eventFilter(self, obj, event)
def eventFilter(self, obj: QtWidgets.QComboBox, event: QEvent) -> bool:
if event.type() == QEvent.Wheel and isinstance(obj,
QtWidgets.QComboBox):
if obj.focusPolicy() == Qt.WheelFocus:
event.accept()
return False
else:
event.ignore()
return True
return super().eventFilter(obj, event)
def event(self, event: QEvent) -> bool:
if event.type() == QEvent.ToolTip:
offset = self.xy_to_offset(event.pos().x(), event.pos().y())
if offset is None:
QToolTip.hideText()
return True
self.signal_show_tooltip_at_offset.emit(offset, event.globalPos())
return True
return super().event(event)
def eventFilter(self, obj: QObject, event: QEvent) -> bool:
"""Filter events for custom title bar."""
if obj is self.ui.titleRightInfo and event.type(
) == QEvent.MouseButtonDblClick:
# This was originally done with a delay of 250 but I didn't like it.
# QTimer.singleShot(250, lambda: self.maximize_restore())
self.maximize_restore()
if obj is self.ui.titleRightInfo and event.type(
) == QEvent.MouseButtonPress:
self.drag_pos = event.globalPos()
if obj is self.ui.titleRightInfo and event.type() == QEvent.MouseMove:
# Restore the window when it is moved in maximized state.
if self.isMaximized():
# TODO: When doing this, we also need to move the window so it's under the mouse cursor!
self.maximize_restore()
# Move the window to the new position.
if event.buttons() == Qt.LeftButton:
self.move(self.pos() + event.globalPos() - self.drag_pos)
self.drag_pos = event.globalPos()
return True
if obj is self.ui.titleRightInfo and event.type(
) == QEvent.MouseButtonRelease:
# Todo: Check if we should move it to the last received position.
self.drag_pos = None
if obj is self and event.type() == QEvent.Resize:
self.resize_grips()
return False
def changeEvent(self, event: QtCore.QEvent):
if event.type() == QtCore.QEvent.StyleChange:
setup_matplotlib()
self._figure.clear()
self.main_layout.removeWidget(self._canvas)
self._canvas.setVisible(False)
self._figure = plt.figure(figsize=self._figure.get_size_inches())
self._canvas = FigureCanvas(self._figure)
self._toolbar = NavigationToolbar(self._canvas, self)
self.main_layout.addWidget(self._canvas, 0, 0)
self.update_chart()
elif event.type() == QtCore.QEvent.LanguageChange:
self.retranslate()
def eventFilter(self, watched: QtCore.QObject,
event: QtCore.QEvent) -> bool:
if event.type() == QtCore.QEvent.Type.KeyPress:
if event.key() == Qt.Key_M:
if self.value() == 0:
self.setValue(self.tmpValue)
else:
self.tmpValue = self.value()
self.setValue(0)
return True
elif event.key() == Qt.Key_Escape:
self.clearFocus()
return True
return False
def recognize(self, state: QGesture, watched,
event: QEvent) -> QGestureRecognizer.Result:
if event.type() == QEvent.TouchBegin:
touch_event: QTouchEvent = event
if len(touch_event.touchPoints()) == 1:
state.press = touch_event.touchPoints()[0]
state.pos = state.press
return QGestureRecognizer.MayBeGesture
elif event.type() == QEvent.TouchUpdate:
touch_event: QTouchEvent = event
state.last = state.pos
state.pos = touch_event.touchPoints()[0]
return QGestureRecognizer.TriggerGesture
return QGestureRecognizer.Ignore
def change_event(self, event: QtCore.QEvent) -> None:
"""Update the tooltip's colors when the palette changes."""
if event.type() == QtCore.QEvent.Type.PaletteChange:
self._value_spinbox.style_sheet = _SPINBOX_BORDER_STYLESHEET.format(
border_color=self.palette.window().color().darker(140).name()
)
super().change_event(event)
def eventFilter(self, watched: QtCore.QObject,
event: QtCore.QEvent) -> bool:
if (event.type() == QtCore.QEvent.Resize):
if not self.pix.isNull():
pixmap = self.pix.scaled(
self.width(), self.height(),
QtCore.Qt.AspectRatioMode.KeepAspectRatio,
QtCore.Qt.TransformationMode.SmoothTransformation)
if pixmap.width() != self.width() or pixmap.height(
) != self.height():
self.ResizeSignal.emit(0)
return super().eventFilter(watched, event)
def eventFilter(self, watched: QtCore.QObject,
event: QtCore.QEvent) -> bool:
# print("event received")
if event.type() == QtCore.QEvent.Gesture:
# print("Tap and hold detected")
self.held = True
# self.bgColor = QtGui.QColor("red")
# self.ignoreFirstClick = 0
self.setChecked(True)
# self.pressedColor = QtGui.QColor("red")
self.setDown(False)
self.warnStateHeld()
self.repaint()
return True
return False
def __init__(self, model):
"""Initialize MNELAB main window.
Parameters
----------
model : mnelab.model.Model instance
The main window needs to connect to a model containing all data sets. This
decouples the GUI from the data (model/view).
"""
super().__init__()
self.model = model # data model
self.setWindowTitle("MNELAB")
# restore settings
settings = read_settings()
self.recent = settings["recent"] # list of recent files
self.resize(settings["size"])
self.move(settings["pos"])
# remove None entries from self.recent
self.recent = [recent for recent in self.recent if recent is not None]
# trigger theme setting
QIcon.setThemeSearchPaths([str(Path(__file__).parent / "icons")])
self.event(QEvent(QEvent.PaletteChange))
self.actions = {} # contains all actions
# initialize menus
file_menu = self.menuBar().addMenu("&File")
icon = QIcon.fromTheme("open-file")
self.actions["open_file"] = file_menu.addAction(
icon, "&Open...", self.open_data, QKeySequence.Open)
self.recent_menu = file_menu.addMenu("Open recent")
self.recent_menu.aboutToShow.connect(self._update_recent_menu)
self.recent_menu.triggered.connect(self._load_recent)
if not self.recent:
self.recent_menu.setEnabled(False)
self.actions["close_file"] = file_menu.addAction(
"&Close", self.model.remove_data, QKeySequence.Close)
self.actions["close_all"] = file_menu.addAction(
"Close all", self.close_all)
file_menu.addSeparator()
icon = QIcon.fromTheme("meta-info")
self.actions["meta_info"] = file_menu.addAction(
icon, "Show information...", self.meta_info)
file_menu.addSeparator()
self.actions["import_bads"] = file_menu.addAction(
"Import bad channels...", lambda: self.import_file(
model.import_bads, "Import bad channels", "*.csv"))
self.actions["import_events"] = file_menu.addAction(
"Import events...", lambda: self.import_file(
model.import_events, "Import events", "*.csv"))
self.actions["import_annotations"] = file_menu.addAction(
"Import annotations...", lambda: self.import_file(
model.import_annotations, "Import annotations", "*.csv"))
self.actions["import_ica"] = file_menu.addAction(
"Import &ICA...", lambda: self.open_file(
model.import_ica, "Import ICA", "*.fif *.fif.gz"))
file_menu.addSeparator()
self.export_menu = file_menu.addMenu("Export data")
for ext, description in writers.items():
action = "export_data" + ext.replace(".", "_")
self.actions[action] = self.export_menu.addAction(
f"{ext[1:].upper()} ({description[1]})...",
partial(self.export_file, model.export_data, "Export data",
"*" + ext))
self.actions["export_bads"] = file_menu.addAction(
"Export &bad channels...", lambda: self.export_file(
model.export_bads, "Export bad channels", "*.csv"))
self.actions["export_events"] = file_menu.addAction(
"Export &events...", lambda: self.export_file(
model.export_events, "Export events", "*.csv"))
self.actions["export_annotations"] = file_menu.addAction(
"Export &annotations...", lambda: self.export_file(
model.export_annotations, "Export annotations", "*.csv"))
self.actions["export_ica"] = file_menu.addAction(
"Export ICA...", lambda: self.export_file(
model.export_ica, "Export ICA", "*.fif *.fif.gz"))
file_menu.addSeparator()
self.actions["xdf_chunks"] = file_menu.addAction(
"Show XDF chunks...", self.xdf_chunks)
file_menu.addSeparator()
self.actions["quit"] = file_menu.addAction("&Quit", self.close,
QKeySequence.Quit)
edit_menu = self.menuBar().addMenu("&Edit")
self.actions["pick_chans"] = edit_menu.addAction(
"P&ick channels...", self.pick_channels)
icon = QIcon.fromTheme("chan-props")
self.actions["chan_props"] = edit_menu.addAction(
icon, "Channel &properties...", self.channel_properties)
self.actions["set_montage"] = edit_menu.addAction(
"Set &montage...", self.set_montage)
edit_menu.addSeparator()
self.actions["set_ref"] = edit_menu.addAction("Set &reference...",
self.set_reference)
edit_menu.addSeparator()
self.actions["annotations"] = edit_menu.addAction(
"&Annotations...", self.edit_annotations)
self.actions["events"] = edit_menu.addAction("&Events...",
self.edit_events)
edit_menu.addSeparator()
self.actions["crop"] = edit_menu.addAction("&Crop data...", self.crop)
self.actions["append_data"] = edit_menu.addAction(
"Appen&d data...", self.append_data)
plot_menu = self.menuBar().addMenu("&Plot")
icon = QIcon.fromTheme("plot-data")
self.actions["plot_data"] = plot_menu.addAction(
icon, "&Data", self.plot_data)
icon = QIcon.fromTheme("plot-psd")
self.actions["plot_psd"] = plot_menu.addAction(
icon, "&Power spectral density", self.plot_psd)
icon = QIcon.fromTheme("plot-locations")
self.actions["plot_locations"] = plot_menu.addAction(
icon, "&Channel locations", self.plot_locations)
self.actions["plot_erds"] = plot_menu.addAction(
"&ERDS maps...", self.plot_erds)
plot_menu.addSeparator()
self.actions["plot_ica_components"] = plot_menu.addAction(
"ICA &components...", self.plot_ica_components)
self.actions["plot_ica_sources"] = plot_menu.addAction(
"ICA &sources...", self.plot_ica_sources)
tools_menu = self.menuBar().addMenu("&Tools")
icon = QIcon.fromTheme("filter-data")
self.actions["filter"] = tools_menu.addAction(icon, "&Filter data...",
self.filter_data)
icon = QIcon.fromTheme("find-events")
self.actions["find_events"] = tools_menu.addAction(
icon, "Find &events...", self.find_events)
self.actions["events_from_annotations"] = tools_menu.addAction(
"Create events from annotations", self.events_from_annotations)
self.actions["annotations_from_events"] = tools_menu.addAction(
"Create annotations from events", self.annotations_from_events)
tools_menu.addSeparator()
nirs_menu = tools_menu.addMenu("NIRS")
self.actions["convert_od"] = nirs_menu.addAction(
"Convert to &optical density", self.convert_od)
self.actions["convert_bl"] = nirs_menu.addAction(
"Convert to &haemoglobin", self.convert_bl)
tools_menu.addSeparator()
icon = QIcon.fromTheme("run-ica")
self.actions["run_ica"] = tools_menu.addAction(icon, "Run &ICA...",
self.run_ica)
self.actions["apply_ica"] = tools_menu.addAction(
"Apply &ICA", self.apply_ica)
tools_menu.addSeparator()
self.actions["interpolate_bads"] = tools_menu.addAction(
"Interpolate bad channels...", self.interpolate_bads)
tools_menu.addSeparator()
icon = QIcon.fromTheme("epoch-data")
self.actions["epoch_data"] = tools_menu.addAction(
icon, "Create epochs...", self.epoch_data)
view_menu = self.menuBar().addMenu("&View")
self.actions["history"] = view_menu.addAction("&History...",
self.show_history)
self.actions["toolbar"] = view_menu.addAction("&Toolbar",
self._toggle_toolbar)
self.actions["toolbar"].setCheckable(True)
self.actions["statusbar"] = view_menu.addAction(
"&Statusbar", self._toggle_statusbar)
self.actions["statusbar"].setCheckable(True)
help_menu = self.menuBar().addMenu("&Help")
self.actions["about"] = help_menu.addAction("&About", self.show_about)
self.actions["about_qt"] = help_menu.addAction("About &Qt",
self.show_about_qt)
# actions that are always enabled
self.always_enabled = [
"open_file", "about", "about_qt", "quit", "xdf_chunks", "toolbar",
"statusbar"
]
# set up toolbar
self.toolbar = self.addToolBar("toolbar")
self.toolbar.setObjectName("toolbar")
self.toolbar.addAction(self.actions["open_file"])
self.toolbar.addAction(self.actions["meta_info"])
self.toolbar.addSeparator()
self.toolbar.addAction(self.actions["chan_props"])
self.toolbar.addSeparator()
self.toolbar.addAction(self.actions["plot_data"])
self.toolbar.addAction(self.actions["plot_psd"])
self.toolbar.addAction(self.actions["plot_locations"])
self.toolbar.addSeparator()
self.toolbar.addAction(self.actions["filter"])
self.toolbar.addAction(self.actions["find_events"])
self.toolbar.addAction(self.actions["epoch_data"])
self.toolbar.addAction(self.actions["run_ica"])
self.toolbar.setMovable(False)
self.setUnifiedTitleAndToolBarOnMac(True)
if settings["toolbar"]:
self.toolbar.show()
self.actions["toolbar"].setChecked(True)
else:
self.toolbar.hide()
self.actions["toolbar"].setChecked(False)
# set up data model for sidebar (list of open files)
self.names = QStringListModel()
self.names.dataChanged.connect(self._update_names)
splitter = QSplitter()
self.sidebar = QListView()
self.sidebar.setFrameStyle(QFrame.NoFrame)
self.sidebar.setFocusPolicy(Qt.NoFocus)
self.sidebar.setModel(self.names)
self.sidebar.clicked.connect(self._update_data)
splitter.addWidget(self.sidebar)
self.infowidget = InfoWidget()
splitter.addWidget(self.infowidget)
width = splitter.size().width()
splitter.setSizes((int(width * 0.3), int(width * 0.7)))
self.setCentralWidget(splitter)
self.status_label = QLabel()
self.statusBar().addPermanentWidget(self.status_label)
if settings["statusbar"]:
self.statusBar().show()
self.actions["statusbar"].setChecked(True)
else:
self.statusBar().hide()
self.actions["statusbar"].setChecked(False)
self.setAcceptDrops(True)
self.data_changed()
def change_event(self, event: QtCore.QEvent) -> None:
"""Retranslate the GUI when a language change occurs."""
if event.type() == QtCore.QEvent.LanguageChange:
self.retranslate()
def changeEvent(self, event: QtCore.QEvent):
if event.type() == QtCore.QEvent.LanguageChange:
self.retranslate()
def change_event(self, event: QtCore.QEvent) -> None:
"""Update the fade images if the palette changed."""
if event.type() == QtCore.QEvent.PaletteChange:
self._fade_in_image, self._fade_out_image = self._create_fade_images(
)
super().change_event(event)
def contextMenuEvent(self, event: QEvent) -> None:
self._copy_table_action.setEnabled(bool(self.rowCount()))
self._copy_row_action.setEnabled(bool(self.selectedItems()))
self._context_menu.exec_(self.viewport().mapToGlobal(event.pos()))
def change_event(self, event: QtCore.QEvent) -> None:
"""Update the tooltip's colors when the palette changes."""
if event.type() == QtCore.QEvent.Type.PaletteChange:
self.refresh_button.icon = self.get_refresh_icon(is_dark())
super().change_event(event)
