Python QStackedWidget.currentWidget方法代码示例

# 需要导入模块: from AnyQt.QtWidgets import QStackedWidget [as 别名]
# 或者: from AnyQt.QtWidgets.QStackedWidget import currentWidget [as 别名]

#.........这里部分代码省略.........

        layout.addWidget(self.featureview)

        box.layout().addLayout(layout, 1)

        box = gui.hBox(self.controlArea)
        gui.rubber(box)
        commit = gui.button(box, self, "Send", callback=self.apply,
                            default=True)
        commit.setMinimumWidth(180)

    def setCurrentIndex(self, index):
        index = min(index, len(self.featuremodel) - 1)
        self.currentIndex = index
        if index >= 0:
            itemmodels.select_row(self.featureview, index)
            desc = self.featuremodel[min(index, len(self.featuremodel) - 1)]
            editor = self.editors[type(desc)]
            self.editorstack.setCurrentWidget(editor)
            editor.setEditorData(desc, self.data.domain if self.data else None)
        self.editorstack.setEnabled(index >= 0)
        self.duplicateaction.setEnabled(index >= 0)
        self.removebutton.setEnabled(index >= 0)

    def _on_selectedVariableChanged(self, selected, *_):
        index = selected_row(self.featureview)
        if index is not None:
            self.setCurrentIndex(index)
        else:
            self.setCurrentIndex(-1)

    def _on_modified(self):
        if self.currentIndex >= 0:
            editor = self.editorstack.currentWidget()
            self.featuremodel[self.currentIndex] = editor.editorData()
            self.descriptors = list(self.featuremodel)

    def setDescriptors(self, descriptors):
        """
        Set a list of variable descriptors to edit.
        """
        self.descriptors = descriptors
        self.featuremodel[:] = list(self.descriptors)

    @Inputs.data
    @check_sql_input
    def setData(self, data=None):
        """Set the input dataset."""
        self.closeContext()

        self.data = data

        if self.data is not None:
            descriptors = list(self.descriptors)
            currindex = self.currentIndex
            self.descriptors = []
            self.currentIndex = -1
            self.openContext(data)

            if descriptors != self.descriptors or \
                    self.currentIndex != currindex:
                # disconnect from the selection model while reseting the model
                selmodel = self.featureview.selectionModel()
                selmodel.selectionChanged.disconnect(
                    self._on_selectedVariableChanged)

# 需要导入模块: from AnyQt.QtWidgets import QStackedWidget [as 别名]
# 或者: from AnyQt.QtWidgets.QStackedWidget import currentWidget [as 别名]
class OWEditDomain(widget.OWWidget):
    name = "Edit Domain"
    description = "Rename features and their values."
    icon = "icons/EditDomain.svg"
    priority = 3125

    inputs = [("Data", Orange.data.Table, "set_data")]
    outputs = [("Data", Orange.data.Table)]

    settingsHandler = settings.DomainContextHandler()

    domain_change_hints = settings.ContextSetting({})
    selected_index = settings.ContextSetting({})

    autocommit = settings.Setting(False)

    def __init__(self):
        super().__init__()

        self.data = None
        self.input_vars = ()
        self._invalidated = False

        box = gui.vBox(self.controlArea, "Domain Features")

        self.domain_model = itemmodels.VariableListModel()
        self.domain_view = QListView(
            selectionMode=QListView.SingleSelection
        )
        self.domain_view.setModel(self.domain_model)
        self.domain_view.selectionModel().selectionChanged.connect(
            self._on_selection_changed)
        box.layout().addWidget(self.domain_view)

        box = gui.hBox(self.controlArea)
        gui.button(box, self, "Reset Selected", callback=self.reset_selected)
        gui.button(box, self, "Reset All", callback=self.reset_all)

        gui.auto_commit(self.controlArea, self, "autocommit", "Apply")

        box = gui.vBox(self.mainArea, "Edit")
        self.editor_stack = QStackedWidget()

        self.editor_stack.addWidget(DiscreteVariableEditor())
        self.editor_stack.addWidget(ContinuousVariableEditor())
        self.editor_stack.addWidget(VariableEditor())

        box.layout().addWidget(self.editor_stack)

    @check_sql_input
    def set_data(self, data):
        """Set input data set."""
        self.closeContext()
        self.clear()
        self.data = data

        if self.data is not None:
            self._initialize()
            self.openContext(self.data)
            self._restore()

        self.unconditional_commit()

    def clear(self):
        """Clear the widget state."""
        self.data = None
        self.domain_model[:] = []
        self.input_vars = []
        self.domain_change_hints = {}
        self.selected_index = -1

    def reset_selected(self):
        """Reset the currently selected variable to its original state."""
        ind = self.selected_var_index()
        if ind >= 0:
            var = self.input_vars[ind]
            desc = variable_description(var, skip_attributes=True)
            if desc in self.domain_change_hints:
                del self.domain_change_hints[desc]

            self.domain_model[ind] = var
            self.editor_stack.currentWidget().set_data(var)
            self._invalidate()

    def reset_all(self):
        """Reset all variables to their original state."""
        self.domain_change_hints = {}
        if self.data is not None:
            # To invalidate stored hints
            self.domain_model[:] = self.input_vars
            itemmodels.select_row(self.domain_view, self.selected_index)
            self._invalidate()

    def selected_var_index(self):
        """Return the selected row in 'Domain Features' view."""
        rows = self.domain_view.selectedIndexes()
        assert len(rows) <= 1
        return rows[0].row() if rows else -1

    def _initialize(self):
#.........这里部分代码省略.........

# 需要导入模块: from AnyQt.QtWidgets import QStackedWidget [as 别名]
# 或者: from AnyQt.QtWidgets.QStackedWidget import currentWidget [as 别名]

#.........这里部分代码省略.........
    def set_data(self, data):
        """Set input dataset."""
        self.closeContext()
        self.clear()
        self.data = data

        if self.data is not None:
            self.set_domain(data.domain)
            self.openContext(self.data)
            self._restore()

        self.commit()

    def clear(self):
        """Clear the widget state."""
        self.data = None
        self.variables_model.clear()
        assert self.selected_index == -1
        self.selected_index = -1

        self._selected_item = None
        self._domain_change_store = {}

    def reset_selected(self):
        """Reset the currently selected variable to its original state."""
        ind = self.selected_var_index()
        if ind >= 0:
            model = self.variables_model
            midx = model.index(ind)
            var = midx.data(Qt.EditRole)
            tr = midx.data(TransformRole)
            if not tr:
                return  # nothing to reset
            editor = self.editor_stack.currentWidget()
            with disconnected(editor.variable_changed,
                              self._on_variable_changed):
                model.setData(midx, [], TransformRole)
                editor.set_data(var, [])
            self._invalidate()

    def reset_all(self):
        """Reset all variables to their original state."""
        self._domain_change_store = {}
        if self.data is not None:
            model = self.variables_model
            for i in range(model.rowCount()):
                midx = model.index(i)
                model.setData(midx, [], TransformRole)
            index = self.selected_var_index()
            if index >= 0:
                self.open_editor(index)
            self._invalidate()

    def selected_var_index(self):
        """Return the current selected variable index."""
        rows = self.variables_view.selectedIndexes()
        assert len(rows) <= 1
        return rows[0].row() if rows else -1

    def set_domain(self, domain):
        # type: (Orange.data.Domain) -> None
        self.variables_model[:] = [abstract(v)
                                   for v in domain.variables + domain.metas]

    def _restore(self, ):
        """