Python QListView.selectionModel方法代码示例

# 需要导入模块: from AnyQt.QtWidgets import QListView [as 别名]
# 或者: from AnyQt.QtWidgets.QListView import selectionModel [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 QListView [as 别名]
# 或者: from AnyQt.QtWidgets.QListView import selectionModel [as 别名]
class OWPythonScript(widget.OWWidget):
    name = "Python Script"
    description = "Write a Python script and run it on input data or models."
    icon = "icons/PythonScript.svg"
    priority = 3150
    keywords = ["file", "program"]

    class Inputs:
        data = Input("Data", Table, replaces=["in_data"],
                     default=True, multiple=True)
        learner = Input("Learner", Learner, replaces=["in_learner"],
                        default=True, multiple=True)
        classifier = Input("Classifier", Model, replaces=["in_classifier"],
                           default=True, multiple=True)
        object = Input("Object", object, replaces=["in_object"],
                       default=False, multiple=True)

    class Outputs:
        data = Output("Data", Table, replaces=["out_data"])
        learner = Output("Learner", Learner, replaces=["out_learner"])
        classifier = Output("Classifier", Model, replaces=["out_classifier"])
        object = Output("Object", object, replaces=["out_object"])

    signal_names = ("data", "learner", "classifier", "object")

    settingsHandler = PrepareSavingSettingsHandler()

    libraryListSource = \
        Setting([Script("Hello world", "print('Hello world')\n")])
    currentScriptIndex = Setting(0)
    scriptText = Setting(None, schema_only=True)
    splitterState = Setting(None)

    class Error(OWWidget.Error):
        pass

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

        for name in self.signal_names:
            setattr(self, name, {})

        for s in self.libraryListSource:
            s.flags = 0

        self._cachedDocuments = {}

        self.infoBox = gui.vBox(self.controlArea, 'Info')
        gui.label(
            self.infoBox, self,
            "<p>Execute python script.</p><p>Input variables:<ul><li> " +
            "<li>".join(map("in_{0}, in_{0}s".format, self.signal_names)) +
            "</ul></p><p>Output variables:<ul><li>" +
            "<li>".join(map("out_{0}".format, self.signal_names)) +
            "</ul></p>"
        )

        self.libraryList = itemmodels.PyListModel(
            [], self,
            flags=Qt.ItemIsSelectable | Qt.ItemIsEnabled | Qt.ItemIsEditable)

        self.libraryList.wrap(self.libraryListSource)

        self.controlBox = gui.vBox(self.controlArea, 'Library')
        self.controlBox.layout().setSpacing(1)

        self.libraryView = QListView(
            editTriggers=QListView.DoubleClicked |
            QListView.EditKeyPressed,
            sizePolicy=QSizePolicy(QSizePolicy.Ignored,
                                   QSizePolicy.Preferred)
        )
        self.libraryView.setItemDelegate(ScriptItemDelegate(self))
        self.libraryView.setModel(self.libraryList)

        self.libraryView.selectionModel().selectionChanged.connect(
            self.onSelectedScriptChanged
        )
        self.controlBox.layout().addWidget(self.libraryView)

        w = itemmodels.ModelActionsWidget()

        self.addNewScriptAction = action = QAction("+", self)
        action.setToolTip("Add a new script to the library")
        action.triggered.connect(self.onAddScript)
        w.addAction(action)

        action = QAction(unicodedata.lookup("MINUS SIGN"), self)
        action.setToolTip("Remove script from library")
        action.triggered.connect(self.onRemoveScript)
        w.addAction(action)

        action = QAction("Update", self)
        action.setToolTip("Save changes in the editor to library")
        action.setShortcut(QKeySequence(QKeySequence.Save))
        action.triggered.connect(self.commitChangesToLibrary)
        w.addAction(action)

        action = QAction("More", self, toolTip="More actions")

#.........这里部分代码省略.........

# 需要导入模块: from AnyQt.QtWidgets import QListView [as 别名]
# 或者: from AnyQt.QtWidgets.QListView import selectionModel [as 别名]
class OWQualityControl(widget.OWWidget):
    name = "Quality Control"
    description = "Experiment quality control"
    icon = "../widgets/icons/QualityControl.svg"
    priority = 5000

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

    DISTANCE_FUNCTIONS = [("Distance from Pearson correlation",
                           dist_pcorr),
                          ("Euclidean distance",
                           dist_eucl),
                          ("Distance from Spearman correlation",
                           dist_spearman)]

    settingsHandler = SetContextHandler()

    split_by_labels = settings.ContextSetting({})
    sort_by_labels = settings.ContextSetting({})

    selected_distance_index = settings.Setting(0)

    def __init__(self, parent=None):
        super().__init__(parent)

        ## Attributes
        self.data = None
        self.distances = None
        self.groups = None
        self.unique_pos = None
        self.base_group_index = 0

        ## GUI
        box = gui.widgetBox(self.controlArea, "Info")
        self.info_box = gui.widgetLabel(box, "\n")

        ## Separate By box
        box = gui.widgetBox(self.controlArea, "Separate By")
        self.split_by_model = itemmodels.PyListModel(parent=self)
        self.split_by_view = QListView()
        self.split_by_view.setSelectionMode(QListView.ExtendedSelection)
        self.split_by_view.setModel(self.split_by_model)
        box.layout().addWidget(self.split_by_view)

        self.split_by_view.selectionModel().selectionChanged.connect(
            self.on_split_key_changed)

        ## Sort By box
        box = gui.widgetBox(self.controlArea, "Sort By")
        self.sort_by_model = itemmodels.PyListModel(parent=self)
        self.sort_by_view = QListView()
        self.sort_by_view.setSelectionMode(QListView.ExtendedSelection)
        self.sort_by_view.setModel(self.sort_by_model)
        box.layout().addWidget(self.sort_by_view)

        self.sort_by_view.selectionModel().selectionChanged.connect(
            self.on_sort_key_changed)

        ## Distance box
        box = gui.widgetBox(self.controlArea, "Distance Measure")
        gui.comboBox(box, self, "selected_distance_index",
                     items=[name for name, _ in self.DISTANCE_FUNCTIONS],
                     callback=self.on_distance_measure_changed)

        self.scene = QGraphicsScene()
        self.scene_view = QGraphicsView(self.scene)
        self.scene_view.setRenderHints(QPainter.Antialiasing)
        self.scene_view.setAlignment(Qt.AlignLeft | Qt.AlignVCenter)
        self.mainArea.layout().addWidget(self.scene_view)

        self.scene_view.installEventFilter(self)

        self._disable_updates = False
        self._cached_distances = {}
        self._base_index_hints = {}
        self.main_widget = None

        self.resize(800, 600)

    def clear(self):
        """Clear the widget state."""
        self.data = None
        self.distances = None
        self.groups = None
        self.unique_pos = None

        with disable_updates(self):
            self.split_by_model[:] = []
            self.sort_by_model[:] = []

        self.main_widget = None
        self.scene.clear()
        self.info_box.setText("\n")
        self._cached_distances = {}

    def set_data(self, data=None):
        """Set input experiment data."""
        self.closeContext()
        self.clear()
#.........这里部分代码省略.........

# 需要导入模块: from AnyQt.QtWidgets import QListView [as 别名]
# 或者: from AnyQt.QtWidgets.QListView import selectionModel [as 别名]
class OWImpute(OWWidget):
    name = "Impute"
    description = "Impute missing values in the data table."
    icon = "icons/Impute.svg"
    priority = 2130

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

    DEFAULT_LEARNER = SimpleTreeLearner()
    METHODS = [AsDefault(), impute.DoNotImpute(), impute.Average(),
               impute.AsValue(), impute.Model(DEFAULT_LEARNER), impute.Random(),
               impute.DropInstances(), impute.Default()]
    DEFAULT, DO_NOT_IMPUTE, MODEL_BASED_IMPUTER, AS_INPUT = 0, 1, 4, 7

    settingsHandler = settings.DomainContextHandler()

    _default_method_index = settings.Setting(DO_NOT_IMPUTE)
    variable_methods = settings.ContextSetting({})
    autocommit = settings.Setting(False)
    default_value = settings.Setting(0.)

    want_main_area = False
    resizing_enabled = False

    def __init__(self):
        super().__init__()
        main_layout = QVBoxLayout()
        main_layout.setContentsMargins(10, 10, 10, 10)
        self.controlArea.layout().addLayout(main_layout)

        box = QGroupBox(title=self.tr("Default Method"), flat=False)
        box_layout = QVBoxLayout(box)
        main_layout.addWidget(box)

        button_group = QButtonGroup()
        button_group.buttonClicked[int].connect(self.set_default_method)
        for i, method in enumerate(self.METHODS):
            if not method.columns_only:
                button = QRadioButton(method.name)
                button.setChecked(i == self.default_method_index)
                button_group.addButton(button, i)
                box_layout.addWidget(button)

        self.default_button_group = button_group

        box = QGroupBox(title=self.tr("Individual Attribute Settings"),
                        flat=False)
        main_layout.addWidget(box)

        horizontal_layout = QHBoxLayout(box)
        main_layout.addWidget(box)

        self.varview = QListView(
            selectionMode=QListView.ExtendedSelection
        )
        self.varview.setItemDelegate(DisplayFormatDelegate())
        self.varmodel = itemmodels.VariableListModel()
        self.varview.setModel(self.varmodel)
        self.varview.selectionModel().selectionChanged.connect(
            self._on_var_selection_changed
        )
        self.selection = self.varview.selectionModel()

        horizontal_layout.addWidget(self.varview)

        method_layout = QVBoxLayout()
        horizontal_layout.addLayout(method_layout)

        button_group = QButtonGroup()
        for i, method in enumerate(self.METHODS):
            button = QRadioButton(text=method.name)
            button_group.addButton(button, i)
            method_layout.addWidget(button)

        self.value_combo = QComboBox(
            minimumContentsLength=8,
            sizeAdjustPolicy=QComboBox.AdjustToMinimumContentsLength,
            activated=self._on_value_selected
            )
        self.value_combo.currentIndexChanged.connect(self._on_value_changed)
        self.value_double = QDoubleSpinBox(
            editingFinished=self._on_value_selected,
            minimum=-1000., maximum=1000., singleStep=.1, decimals=3,
            value=self.default_value
            )
        self.value_stack = value_stack = QStackedLayout()
        value_stack.addWidget(self.value_combo)
        value_stack.addWidget(self.value_double)
        method_layout.addLayout(value_stack)

        button_group.buttonClicked[int].connect(
            self.set_method_for_current_selection
        )

        method_layout.addStretch(2)

        reset_button = QPushButton(
                "Restore All to Default", checked=False, checkable=False,
#.........这里部分代码省略.........

# 需要导入模块: from AnyQt.QtWidgets import QListView [as 别名]
# 或者: from AnyQt.QtWidgets.QListView import selectionModel [as 别名]
class OWDiscretize(widget.OWWidget):
    name = "Discretize"
    description = "Discretize the numeric data features."
    icon = "icons/Discretize.svg"
    inputs = [InputSignal("Data", Orange.data.Table, "set_data",
                          doc="Input data table")]
    outputs = [OutputSignal("Data", Orange.data.Table,
                            doc="Table with discretized features")]

    settingsHandler = settings.DomainContextHandler()
    saved_var_states = settings.ContextSetting({})

    default_method = settings.Setting(2)
    default_k = settings.Setting(3)
    autosend = settings.Setting(True)

    #: Discretization methods
    Default, Leave, MDL, EqualFreq, EqualWidth, Remove, Custom = range(7)

    want_main_area = False
    resizing_enabled = False

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

        #: input data
        self.data = None
        #: Current variable discretization state
        self.var_state = {}
        #: Saved variable discretization settings (context setting)
        self.saved_var_states = {}

        self.method = 0
        self.k = 5

        box = gui.vBox(self.controlArea, self.tr("Default Discretization"))
        self.default_bbox = rbox = gui.radioButtons(
            box, self, "default_method", callback=self._default_disc_changed)
        rb = gui.hBox(rbox)
        self.left = gui.vBox(rb)
        right = gui.vBox(rb)
        rb.layout().setStretch(0, 1)
        rb.layout().setStretch(1, 1)
        options = self.options = [
            self.tr("Default"),
            self.tr("Leave numeric"),
            self.tr("Entropy-MDL discretization"),
            self.tr("Equal-frequency discretization"),
            self.tr("Equal-width discretization"),
            self.tr("Remove numeric variables")
        ]

        for opt in options[1:]:
            t = gui.appendRadioButton(rbox, opt)
            # This condition is ugly, but it keeps the same order of
            # options for backward compatibility of saved schemata
            [right, self.left][opt.startswith("Equal")].layout().addWidget(t)
        gui.separator(right, 18, 18)

        def _intbox(widget, attr, callback):
            box = gui.indentedBox(widget)
            s = gui.spin(
                box, self, attr, minv=2, maxv=10, label="Num. of intervals:",
                callback=callback)
            s.setMaximumWidth(60)
            s.setAlignment(Qt.AlignRight)
            gui.rubber(s.box)
            return box.box

        self.k_general = _intbox(self.left, "default_k",
                                 self._default_disc_changed)
        self.k_general.layout().setContentsMargins(0, 0, 0, 0)
        vlayout = QHBoxLayout()
        box = gui.widgetBox(
            self.controlArea, "Individual Attribute Settings",
            orientation=vlayout, spacing=8
        )

        # List view with all attributes
        self.varview = QListView(selectionMode=QListView.ExtendedSelection)
        self.varview.setItemDelegate(DiscDelegate())
        self.varmodel = itemmodels.VariableListModel()
        self.varview.setModel(self.varmodel)
        self.varview.selectionModel().selectionChanged.connect(
            self._var_selection_changed
        )

        vlayout.addWidget(self.varview)
        # Controls for individual attr settings
        self.bbox = controlbox = gui.radioButtons(
            box, self, "method", callback=self._disc_method_changed
        )
        vlayout.addWidget(controlbox)

        for opt in options[:5]:
            gui.appendRadioButton(controlbox, opt)

        self.k_specific = _intbox(controlbox, "k", self._disc_method_changed)

        gui.appendRadioButton(controlbox, "Remove attribute")
#.........这里部分代码省略.........

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

#.........这里部分代码省略.........
        )
        menu.addSeparator()
        self.duplicateaction = menu.addAction("Duplicate Selected Variable")
        self.duplicateaction.triggered.connect(self.duplicateFeature)
        self.duplicateaction.setEnabled(False)
        self.addbutton.setMenu(menu)

        self.removebutton = QPushButton(
            "Remove", toolTip="Remove selected variable",
            minimumWidth=120,
            shortcut=QKeySequence.Delete
        )
        self.removebutton.clicked.connect(self.removeSelectedFeature)

        buttonlayout.addWidget(self.addbutton)
        buttonlayout.addWidget(self.removebutton)
        buttonlayout.addStretch(10)

        toplayout.addLayout(buttonlayout, 0)
        toplayout.addWidget(self.editorstack, 10)

        # Layout for the list view
        layout = QVBoxLayout(spacing=1, margin=0)
        self.featuremodel = DescriptorModel(parent=self)

        self.featureview = QListView(
            minimumWidth=200,
            sizePolicy=QSizePolicy(QSizePolicy.Minimum,
                                   QSizePolicy.MinimumExpanding)
        )

        self.featureview.setItemDelegate(FeatureItemDelegate(self))
        self.featureview.setModel(self.featuremodel)
        self.featureview.selectionModel().selectionChanged.connect(
            self._on_selectedVariableChanged
        )

        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)

# 需要导入模块: from AnyQt.QtWidgets import QListView [as 别名]
# 或者: from AnyQt.QtWidgets.QListView import selectionModel [as 别名]
class OWDistributions(widget.OWWidget):
    name = "Distributions"
    description = "Display value distributions of a data feature in a graph."
    icon = "icons/Distribution.svg"
    priority = 120

    class Inputs:
        data = Input("Data", Orange.data.Table, doc="Set the input data set")

    settingsHandler = settings.DomainContextHandler(
        match_values=settings.DomainContextHandler.MATCH_VALUES_ALL)
    #: Selected variable index
    variable_idx = settings.ContextSetting(-1)
    #: Selected group variable
    groupvar_idx = settings.ContextSetting(0)

    relative_freq = settings.Setting(False)
    disc_cont = settings.Setting(False)

    smoothing_index = settings.Setting(5)
    show_prob = settings.ContextSetting(0)

    graph_name = "plot"

    ASH_HIST = 50

    bins = [2, 3, 4, 5, 8, 10, 12, 15, 20, 30, 50]
    smoothing_facs = list(reversed([0.1, 0.2, 0.4, 0.6, 0.8, 1, 1.5, 2, 4, 6, 10]))

    def __init__(self):
        super().__init__()
        self.data = None

        self.distributions = None
        self.contingencies = None
        self.var = self.cvar = None
        varbox = gui.vBox(self.controlArea, "Variable")

        self.varmodel = itemmodels.VariableListModel()
        self.groupvarmodel = []

        self.varview = QListView(
            selectionMode=QListView.SingleSelection)
        self.varview.setSizePolicy(
            QSizePolicy.Minimum, QSizePolicy.Expanding)
        self.varview.setModel(self.varmodel)
        self.varview.setSelectionModel(
            itemmodels.ListSingleSelectionModel(self.varmodel))
        self.varview.selectionModel().selectionChanged.connect(
            self._on_variable_idx_changed)
        varbox.layout().addWidget(self.varview)

        box = gui.vBox(self.controlArea, "Precision")

        gui.separator(self.controlArea, 4, 4)

        box2 = gui.hBox(box)
        self.l_smoothing_l = gui.widgetLabel(box2, "Smooth")
        gui.hSlider(box2, self, "smoothing_index",
                    minValue=0, maxValue=len(self.smoothing_facs) - 1,
                    callback=self._on_set_smoothing, createLabel=False)
        self.l_smoothing_r = gui.widgetLabel(box2, "Precise")

        self.cb_disc_cont = gui.checkBox(
            gui.indentedBox(box, sep=4),
            self, "disc_cont", "Bin numeric variables",
            callback=self._on_groupvar_idx_changed,
            tooltip="Show numeric variables as categorical.")

        box = gui.vBox(self.controlArea, "Group by")
        self.icons = gui.attributeIconDict
        self.groupvarview = gui.comboBox(
            box, self, "groupvar_idx",
            callback=self._on_groupvar_idx_changed,
            valueType=str, contentsLength=12)
        box2 = gui.indentedBox(box, sep=4)
        self.cb_rel_freq = gui.checkBox(
            box2, self, "relative_freq", "Show relative frequencies",
            callback=self._on_relative_freq_changed,
            tooltip="Normalize probabilities so that probabilities "
                    "for each group-by value sum to 1.")
        gui.separator(box2)
        self.cb_prob = gui.comboBox(
            box2, self, "show_prob", label="Show probabilities:",
            orientation=Qt.Horizontal,
            callback=self._on_relative_freq_changed,
            tooltip="Show probabilities for a chosen group-by value "
                    "(at each point probabilities for all group-by values sum to 1).")

        self.plotview = pg.PlotWidget(background=None)
        self.plotview.setRenderHint(QPainter.Antialiasing)
        self.mainArea.layout().addWidget(self.plotview)
        w = QLabel()
        w.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed)
        self.mainArea.layout().addWidget(w, Qt.AlignCenter)
        self.ploti = pg.PlotItem()
        self.plot = self.ploti.vb
        self.ploti.hideButtons()
        self.plotview.setCentralItem(self.ploti)

#.........这里部分代码省略.........

# 需要导入模块: from AnyQt.QtWidgets import QListView [as 别名]
# 或者: from AnyQt.QtWidgets.QListView import selectionModel [as 别名]
class OWImpute(OWWidget):
    name = "Impute"
    description = "Impute missing values in the data table."
    icon = "icons/Impute.svg"
    priority = 2130

    class Inputs:
        data = Input("Data", Orange.data.Table)
        learner = Input("Learner", Learner)

    class Outputs:
        data = Output("Data", Orange.data.Table)

    class Error(OWWidget.Error):
        imputation_failed = Msg("Imputation failed for '{}'")
        model_based_imputer_sparse = Msg("Model based imputer does not work for sparse data")

    DEFAULT_LEARNER = SimpleTreeLearner()
    METHODS = [AsDefault(), impute.DoNotImpute(), impute.Average(),
               impute.AsValue(), impute.Model(DEFAULT_LEARNER), impute.Random(),
               impute.DropInstances(), impute.Default()]
    DEFAULT, DO_NOT_IMPUTE, MODEL_BASED_IMPUTER, AS_INPUT = 0, 1, 4, 7

    settingsHandler = settings.DomainContextHandler()

    _default_method_index = settings.Setting(DO_NOT_IMPUTE)
    variable_methods = settings.ContextSetting({})
    autocommit = settings.Setting(True)

    want_main_area = False
    resizing_enabled = False

    def __init__(self):
        super().__init__()
        # copy METHODS (some are modified by the widget)
        self.methods = copy.deepcopy(OWImpute.METHODS)

        main_layout = QVBoxLayout()
        main_layout.setContentsMargins(10, 10, 10, 10)
        self.controlArea.layout().addLayout(main_layout)

        box = QGroupBox(title=self.tr("Default Method"), flat=False)
        box_layout = QVBoxLayout(box)
        main_layout.addWidget(box)

        button_group = QButtonGroup()
        button_group.buttonClicked[int].connect(self.set_default_method)
        for i, method in enumerate(self.methods):
            if not method.columns_only:
                button = QRadioButton(method.name)
                button.setChecked(i == self.default_method_index)
                button_group.addButton(button, i)
                box_layout.addWidget(button)

        self.default_button_group = button_group

        box = QGroupBox(title=self.tr("Individual Attribute Settings"),
                        flat=False)
        main_layout.addWidget(box)

        horizontal_layout = QHBoxLayout(box)
        main_layout.addWidget(box)

        self.varview = QListView(
            selectionMode=QListView.ExtendedSelection
        )
        self.varview.setItemDelegate(DisplayFormatDelegate())
        self.varmodel = itemmodels.VariableListModel()
        self.varview.setModel(self.varmodel)
        self.varview.selectionModel().selectionChanged.connect(
            self._on_var_selection_changed
        )
        self.selection = self.varview.selectionModel()

        horizontal_layout.addWidget(self.varview)

        method_layout = QVBoxLayout()
        horizontal_layout.addLayout(method_layout)

        button_group = QButtonGroup()
        for i, method in enumerate(self.methods):
            button = QRadioButton(text=method.name)
            button_group.addButton(button, i)
            method_layout.addWidget(button)

        self.value_combo = QComboBox(
            minimumContentsLength=8,
            sizeAdjustPolicy=QComboBox.AdjustToMinimumContentsLength,
            activated=self._on_value_selected
            )
        self.value_double = QDoubleSpinBox(
            editingFinished=self._on_value_selected,
            minimum=-1000., maximum=1000., singleStep=.1, decimals=3,
            )
        self.value_stack = value_stack = QStackedWidget()
        value_stack.addWidget(self.value_combo)
        value_stack.addWidget(self.value_double)
        method_layout.addWidget(value_stack)

        button_group.buttonClicked[int].connect(
#.........这里部分代码省略.........

# 需要导入模块: from AnyQt.QtWidgets import QListView [as 别名]
# 或者: from AnyQt.QtWidgets.QListView import selectionModel [as 别名]
class SelectionSetsWidget(QFrame):
    """
    Widget for managing multiple stored item selections
    """
    selectionModified = Signal(bool)

    def __init__(self, parent):
        QFrame.__init__(self, parent)
        self.setContentsMargins(0, 0, 0, 0)
        layout = QVBoxLayout()
        layout.setContentsMargins(0, 0, 0, 0)
        layout.setSpacing(1)
        self._setNameLineEdit = QLineEdit(self)
        layout.addWidget(self._setNameLineEdit)

        self._setListView = QListView(self)
        self._listModel = QStandardItemModel(self)
        self._proxyModel = QSortFilterProxyModel(self)
        self._proxyModel.setSourceModel(self._listModel)

        self._setListView.setModel(self._proxyModel)
        self._setListView.setItemDelegate(ListItemDelegate(self))

        self._setNameLineEdit.textChanged.connect(
            self._proxyModel.setFilterFixedString)

        self._completer = QCompleter(self._listModel, self)

        self._setNameLineEdit.setCompleter(self._completer)

        self._listModel.itemChanged.connect(self._onSetNameChange)
        layout.addWidget(self._setListView)
        buttonLayout = QHBoxLayout()

        self._addAction = QAction(
            "+", self, toolTip="Add a new sort key")
        self._updateAction = QAction(
            "Update", self, toolTip="Update/save current selection")
        self._removeAction = QAction(
            "\u2212", self, toolTip="Remove selected sort key.")

        self._addToolButton = QToolButton(self)
        self._updateToolButton = QToolButton(self)
        self._removeToolButton = QToolButton(self)
        self._updateToolButton.setSizePolicy(
                QSizePolicy.MinimumExpanding, QSizePolicy.Minimum)

        self._addToolButton.setDefaultAction(self._addAction)
        self._updateToolButton.setDefaultAction(self._updateAction)
        self._removeToolButton.setDefaultAction(self._removeAction)

        buttonLayout.addWidget(self._addToolButton)
        buttonLayout.addWidget(self._updateToolButton)
        buttonLayout.addWidget(self._removeToolButton)

        layout.addLayout(buttonLayout)
        self.setLayout(layout)

        self._addAction.triggered.connect(self.addCurrentSelection)
        self._updateAction.triggered.connect(self.updateSelectedSelection)
        self._removeAction.triggered.connect(self.removeSelectedSelection)

        self._setListView.selectionModel().selectionChanged.connect(
            self._onListViewSelectionChanged)
        self.selectionModel = None
        self._selections = []

    def sizeHint(self):
        size = QFrame.sizeHint(self)
        return QSize(size.width(), 150)

    def _onSelectionChanged(self, selected, deselected):
        self.setSelectionModified(True)

    def _onListViewSelectionChanged(self, selected, deselected):
        try:
            index = self._setListView.selectedIndexes()[0]
        except IndexError:
            return
        self.commitSelection(self._proxyModel.mapToSource(index).row())

    def _onSetNameChange(self, item):
        self.selections[item.row()].name = str(item.text())

    def _setButtonStates(self, val):
        self._updateToolButton.setEnabled(val)

    def setSelectionModel(self, selectionModel):
        if self.selectionModel:
            self.selectionModel.selectionChanged.disconnect(
                self._onSelectionChanged)
        self.selectionModel = selectionModel
        self.selectionModel.selectionChanged.connect(self._onSelectionChanged)

    def addCurrentSelection(self):
        item = self.addSelection(
            SelectionByKey(self.selectionModel.selection(),
                           name="New selection",
                           key=(1, 2, 3, 10)))
        index = self._proxyModel.mapFromSource(item.index())
#.........这里部分代码省略.........

# 需要导入模块: from AnyQt.QtWidgets import QListView [as 别名]
# 或者: from AnyQt.QtWidgets.QListView import selectionModel [as 别名]
class OWImpute(OWWidget):
    name = "Impute"
    description = "Impute missing values in the data table."
    icon = "icons/Impute.svg"
    priority = 2130

    class Inputs:
        data = Input("Data", Orange.data.Table)
        learner = Input("Learner", Learner)

    class Outputs:
        data = Output("Data", Orange.data.Table)

    class Error(OWWidget.Error):
        imputation_failed = Msg("Imputation failed for '{}'")
        model_based_imputer_sparse = Msg("Model based imputer does not work for sparse data")

    settingsHandler = settings.DomainContextHandler()

    _default_method_index = settings.Setting(int(Method.Leave))  # type: int
    # Per-variable imputation state (synced in storeSpecificSettings)
    _variable_imputation_state = settings.ContextSetting({})  # type: VariableState

    autocommit = settings.Setting(True)

    want_main_area = False
    resizing_enabled = False

    def __init__(self):
        super().__init__()
        self.data = None  # type: Optional[Orange.data.Table]
        self.learner = None  # type: Optional[Learner]
        self.default_learner = SimpleTreeLearner()
        self.modified = False
        self.executor = qconcurrent.ThreadExecutor(self)
        self.__task = None

        main_layout = QVBoxLayout()
        main_layout.setContentsMargins(10, 10, 10, 10)
        self.controlArea.layout().addLayout(main_layout)

        box = QGroupBox(title=self.tr("Default Method"), flat=False)
        box_layout = QVBoxLayout(box)
        main_layout.addWidget(box)

        button_group = QButtonGroup()
        button_group.buttonClicked[int].connect(self.set_default_method)

        for method, _ in list(METHODS.items())[1:-1]:
            imputer = self.create_imputer(method)
            button = QRadioButton(imputer.name)
            button.setChecked(method == self.default_method_index)
            button_group.addButton(button, method)
            box_layout.addWidget(button)

        self.default_button_group = button_group

        box = QGroupBox(title=self.tr("Individual Attribute Settings"),
                        flat=False)
        main_layout.addWidget(box)

        horizontal_layout = QHBoxLayout(box)
        main_layout.addWidget(box)

        self.varview = QListView(
            selectionMode=QListView.ExtendedSelection,
            uniformItemSizes=True
        )
        self.varview.setItemDelegate(DisplayFormatDelegate())
        self.varmodel = itemmodels.VariableListModel()
        self.varview.setModel(self.varmodel)
        self.varview.selectionModel().selectionChanged.connect(
            self._on_var_selection_changed
        )
        self.selection = self.varview.selectionModel()

        horizontal_layout.addWidget(self.varview)

        method_layout = QVBoxLayout()
        horizontal_layout.addLayout(method_layout)

        button_group = QButtonGroup()
        for method in Method:
            imputer = self.create_imputer(method)
            button = QRadioButton(text=imputer.name)
            button_group.addButton(button, method)
            method_layout.addWidget(button)

        self.value_combo = QComboBox(
            minimumContentsLength=8,
            sizeAdjustPolicy=QComboBox.AdjustToMinimumContentsLength,
            activated=self._on_value_selected
            )
        self.value_double = QDoubleSpinBox(
            editingFinished=self._on_value_selected,
            minimum=-1000., maximum=1000., singleStep=.1, decimals=3,
            )
        self.value_stack = value_stack = QStackedWidget()
        value_stack.addWidget(self.value_combo)
        value_stack.addWidget(self.value_double)
#.........这里部分代码省略.........

# 需要导入模块: from AnyQt.QtWidgets import QListView [as 别名]
# 或者: from AnyQt.QtWidgets.QListView import selectionModel [as 别名]
class OWPythonScript(widget.OWWidget):
    name = "Python Script"
    description = "Write a Python script and run it on input data or models."
    icon = "icons/PythonScript.svg"
    priority = 3150

    inputs = [("in_data", Orange.data.Table, "setExampleTable",
               widget.Default),
#               ("in_distance", Orange.misc.SymMatrix, "setDistanceMatrix",
#                widget.Default),
              ("in_learner", Learner, "setLearner",
               widget.Default),
              ("in_classifier", Model, "setClassifier",
               widget.Default),
              ("in_object", object, "setObject")]

    outputs = [("out_data", Orange.data.Table, ),
#                ("out_distance", Orange.misc.SymMatrix, ),
               ("out_learner", Learner, ),
               ("out_classifier", Model, widget.Dynamic),
               ("out_object", object, widget.Dynamic)]

    libraryListSource = \
        Setting([Script("Hello world", "print('Hello world')\n")])
    currentScriptIndex = Setting(0)
    splitterState = Setting(None)
    auto_execute = Setting(False)

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

        self.in_data = None
        self.in_distance = None
        self.in_learner = None
        self.in_classifier = None
        self.in_object = None
        self.auto_execute = False

        for s in self.libraryListSource:
            s.flags = 0

        self._cachedDocuments = {}

        self.infoBox = gui.vBox(self.controlArea, 'Info')
        gui.label(
            self.infoBox, self,
            "<p>Execute python script.</p><p>Input variables:<ul><li> " + \
            "<li>".join(t.name for t in self.inputs) + \
            "</ul></p><p>Output variables:<ul><li>" + \
            "<li>".join(t.name for t in self.outputs) + \
            "</ul></p>"
        )

        self.libraryList = itemmodels.PyListModel(
            [], self,
            flags=Qt.ItemIsSelectable | Qt.ItemIsEnabled | Qt.ItemIsEditable)

        self.libraryList.wrap(self.libraryListSource)

        self.controlBox = gui.vBox(self.controlArea, 'Library')
        self.controlBox.layout().setSpacing(1)

        self.libraryView = QListView(
            editTriggers=QListView.DoubleClicked |
                         QListView.EditKeyPressed,
            sizePolicy=QSizePolicy(QSizePolicy.Ignored,
                                   QSizePolicy.Preferred)
        )
        self.libraryView.setItemDelegate(ScriptItemDelegate(self))
        self.libraryView.setModel(self.libraryList)

        self.libraryView.selectionModel().selectionChanged.connect(
            self.onSelectedScriptChanged
        )
        self.controlBox.layout().addWidget(self.libraryView)

        w = itemmodels.ModelActionsWidget()

        self.addNewScriptAction = action = QAction("+", self)
        action.setToolTip("Add a new script to the library")
        action.triggered.connect(self.onAddScript)
        w.addAction(action)

        action = QAction(unicodedata.lookup("MINUS SIGN"), self)
        action.setToolTip("Remove script from library")
        action.triggered.connect(self.onRemoveScript)
        w.addAction(action)

        action = QAction("Update", self)
        action.setToolTip("Save changes in the editor to library")
        action.setShortcut(QKeySequence(QKeySequence.Save))
        action.triggered.connect(self.commitChangesToLibrary)
        w.addAction(action)

        action = QAction("More", self, toolTip="More actions")

        new_from_file = QAction("Import Script from File", self)
        save_to_file = QAction("Save Selected Script to File", self)
        save_to_file.setShortcut(QKeySequence(QKeySequence.SaveAs))

#.........这里部分代码省略.........

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

#.........这里部分代码省略.........
    def set_data(self, data=None):
        """Set the input data table.
        """
        self.closeContext()
        self.clear()
        self.error(0)
        self.warning(0)
        if data and not self.get_suitable_keys(data):
            self.error(0, "Data has no suitable column labels.")
            data = None

        self.data = data

        if data:
            self.info_box.setText("{0} genes\n{1} experiments"
                                  .format(len(data), len(data.domain)))
            self.update_control()
            self.split_data()
        else:
            self.separate_view.setModel(itemmodels.PyListModel([]))
            self.relevant_view.setModel(itemmodels.PyListModel([]))
            self.groups_scroll_area.setWidget(QWidget())
            self.info_box.setText("No data on input.\n")
        self.commit()

    def update_control(self):
        """Update the control area of the widget. Populate the list
        views with keys from attribute labels.
        """
        keys = self.get_suitable_keys(self.data)

        model = itemmodels.PyListModel(keys)
        self.separate_view.setModel(model)
        self.separate_view.selectionModel().selectionChanged.connect(
            self.on_separate_key_changed)

        model = itemmodels.PyListModel(keys)
        self.relevant_view.setModel(model)
        self.relevant_view.selectionModel().selectionChanged.connect(
            self.on_relevant_key_changed)

        self.openContext(keys)

        # Get the selected keys from the open context
        separate_keys = self.separate_keys
        relevant_keys = self.relevant_keys

        def select(model, selection_model, selected_items):
            all_items = list(model)
            try:
                indices = [all_items.index(item) for item in selected_items]
            except:
                indices = []
            selection = QItemSelection()
            for ind in indices:
                index = model.index(ind)
                selection.select(index, index)

            selection_model.select(selection, QItemSelectionModel.Select)

        self._disable_updates = True
        try:
            select(self.relevant_view.model(),
                   self.relevant_view.selectionModel(),
                   relevant_keys)

# 需要导入模块: from AnyQt.QtWidgets import QListView [as 别名]
# 或者: from AnyQt.QtWidgets.QListView import selectionModel [as 别名]
class DiscreteVariableEditor(VariableEditor):
    """An editor widget for editing a discrete variable.

    Extends the :class:`VariableEditor` to enable editing of
    variables values.
    """
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        form = self.layout().itemAt(0)
        assert isinstance(form, QFormLayout)

        #: A list model of discrete variable's values.
        self.values_model = itemmodels.PyListModel(
            flags=Qt.ItemIsSelectable | Qt.ItemIsEnabled | Qt.ItemIsEditable
        )

        vlayout = QVBoxLayout(spacing=1, margin=0)
        self.values_edit = QListView(
            editTriggers=QListView.DoubleClicked | QListView.EditKeyPressed
        )
        self.values_edit.setItemDelegate(CategoriesEditDelegate(self))
        self.values_edit.setModel(self.values_model)
        self.values_model.dataChanged.connect(self.on_values_changed)

        self.values_edit.selectionModel().selectionChanged.connect(
            self.on_value_selection_changed)
        self.values_model.layoutChanged.connect(self.on_value_selection_changed)
        self.values_model.rowsMoved.connect(self.on_value_selection_changed)

        vlayout.addWidget(self.values_edit)
        hlayout = QHBoxLayout(spacing=1, margin=0)

        self.categories_action_group = group = QActionGroup(
            self, objectName="action-group-categories", enabled=False
        )
        self.move_value_up = QAction(
            "\N{UPWARDS ARROW}", group,
            toolTip="Move the selected item up.",
            shortcut=QKeySequence(Qt.ControlModifier | Qt.AltModifier |
                                  Qt.Key_BracketLeft),
            shortcutContext=Qt.WidgetShortcut,
        )
        self.move_value_up.triggered.connect(self.move_up)

        self.move_value_down = QAction(
            "\N{DOWNWARDS ARROW}", group,
            toolTip="Move the selected item down.",
            shortcut=QKeySequence(Qt.ControlModifier | Qt.AltModifier |
                                  Qt.Key_BracketRight),
            shortcutContext=Qt.WidgetShortcut,
        )
        self.move_value_down.triggered.connect(self.move_down)

        self.add_new_item = QAction(
            "+", group,
            objectName="action-add-item",
            toolTip="Append a new item.",
            shortcut=QKeySequence(QKeySequence.New),
            shortcutContext=Qt.WidgetShortcut,
        )
        self.remove_item = QAction(
            "\N{MINUS SIGN}", group,
            objectName="action-remove-item",
            toolTip="Delete the selected item.",
            shortcut=QKeySequence(QKeySequence.Delete),
            shortcutContext=Qt.WidgetShortcut,
        )

        self.add_new_item.triggered.connect(self._add_category)
        self.remove_item.triggered.connect(self._remove_category)

        button1 = FixedSizeButton(
            self, defaultAction=self.move_value_up,
            accessibleName="Move up"
        )
        button2 = FixedSizeButton(
            self, defaultAction=self.move_value_down,
            accessibleName="Move down"
        )
        button3 = FixedSizeButton(
            self, defaultAction=self.add_new_item,
            accessibleName="Add"
        )
        button4 = FixedSizeButton(
            self, defaultAction=self.remove_item,
            accessibleName="Remove"
        )
        self.values_edit.addActions([self.move_value_up, self.move_value_down,
                                     self.add_new_item, self.remove_item])
        hlayout.addWidget(button1)
        hlayout.addWidget(button2)
        hlayout.addSpacing(3)
        hlayout.addWidget(button3)
        hlayout.addWidget(button4)

        hlayout.addStretch(10)
        vlayout.addLayout(hlayout)

        form.insertRow(1, "Values:", vlayout)

#.........这里部分代码省略.........

# 需要导入模块: from AnyQt.QtWidgets import QListView [as 别名]
# 或者: from AnyQt.QtWidgets.QListView import selectionModel [as 别名]
class OWSpiralogram(widget.OWWidget):
    name = 'Spiralogram'
    description = "Visualize time series' periodicity in a spiral heatmap."
    icon = 'icons/Spiralogram.svg'
    priority = 120

    class Inputs:
        time_series = Input("Time series", Table)

    class Outputs:
        time_series = Output("Time series", Timeseries)

    settingsHandler = settings.DomainContextHandler()

    ax1 = settings.ContextSetting('months of year')
    ax2 = settings.ContextSetting('years')

    agg_attr = settings.ContextSetting([])
    agg_func = settings.ContextSetting(0)

    invert_date_order = settings.Setting(False)

    graph_name = 'chart'

    def __init__(self):
        self.data = None
        self.indices = []
        box = gui.vBox(self.controlArea, 'Axes')
        self.combo_ax2_model = VariableListModel(parent=self)
        self.combo_ax1_model = VariableListModel(parent=self)
        for model in (self.combo_ax1_model, self.combo_ax2_model):
            model[:] = [_enum_str(i) for i in Spiralogram.AxesCategories]
        self.combo_ax2 = gui.comboBox(
            box, self, 'ax2', label='Y axis:', callback=self.replot,
            sendSelectedValue=True, orientation='horizontal',
            model=self.combo_ax2_model)
        self.combo_ax1 = gui.comboBox(
            box, self, 'ax1', label='Radial:', callback=self.replot,
            sendSelectedValue=True, orientation='horizontal',
            model=self.combo_ax1_model)
        gui.checkBox(box, self, 'invert_date_order', 'Invert Y axis order',
                     callback=self.replot)

        box = gui.vBox(self.controlArea, 'Aggregation')
        self.combo_func = gui.comboBox(
            box, self, 'agg_func', label='Function:', orientation='horizontal',
            callback=self.replot)
        func_model = ListModel(AGG_FUNCTIONS, parent=self)
        self.combo_func.setModel(func_model)

        self.attrlist_model = VariableListModel(parent=self)
        self.attrlist = QListView(selectionMode=QListView.SingleSelection)
        self.attrlist.setModel(self.attrlist_model)
        self.attrlist.selectionModel().selectionChanged.connect(
            self.attrlist_selectionChanged)
        box.layout().addWidget(self.attrlist)

        gui.rubber(self.controlArea)

        self.chart = chart = Spiralogram(self,
                                         selection_callback=self.on_selection)
        self.mainArea.layout().addWidget(chart)

    def attrlist_selectionChanged(self):
        self.agg_attr = [self.attrlist_model[i.row()]
                         for i in self.attrlist.selectionModel().selectedIndexes()]
        self.replot()

    @Inputs.time_series
    def set_data(self, data):
        self.data = data = None if data is None else Timeseries.from_data_table(data)

        def init_combos():
            for model in (self.combo_ax1_model, self.combo_ax2_model):
                model.clear()
            newmodel = []
            if data is not None and data.time_variable is not None:
                for model in (self.combo_ax1_model, self.combo_ax2_model):
                    model[:] = [_enum_str(i) for i in Spiralogram.AxesCategories]
            for var in data.domain.variables if data is not None else []:
                if (var.is_primitive() and
                        (var is not data.time_variable or
                         isinstance(var, TimeVariable) and data.time_delta is None)):
                    newmodel.append(var)
                if var.is_discrete:
                    for model in (self.combo_ax1_model, self.combo_ax2_model):
                        model.append(var)
            self.attrlist_model.wrap(newmodel)

        init_combos()
        self.chart.clear()

        if data is None:
            self.commit()
            return

        self.closeContext()
        self.ax2 = next((self.combo_ax2.itemText(i)
                         for i in range(self.combo_ax2.count())), '')
        self.ax1 = next((self.combo_ax1.itemText(i)
#.........这里部分代码省略.........