Python QListView.selectionModel方法代码示例

# 需要导入模块: from PyQt4.QtGui import QListView [as 别名]
# 或者: from PyQt4.QtGui.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.widgetBox(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.widgetBox(self.controlArea, "Reset")
        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", "Commit",
                        "Commit on change is on")

        box = gui.widgetBox(self.mainArea, "Edit")
        self.editor_stack = QtGui.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)
            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

#.........这里部分代码省略.........

# 需要导入模块: from PyQt4.QtGui import QListView [as 别名]
# 或者: from PyQt4.QtGui.QListView import selectionModel [as 别名]
class OWPySparkScript(SharedSparkContext, widget.OWWidget):
    priority = 3
    name = "PySpark Script"
    description = "Write a PySpark script and run it on input"
    icon = "../icons/PythonScript.svg"


    inputs = [("in_object", object, "setObject")]
    outputs = [("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.widgetBox(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.widgetBox(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 a script from a file", self)
        save_to_file = QAction("Save selected script to a file", self)
        save_to_file.setShortcut(QKeySequence(QKeySequence.SaveAs))

        new_from_file.triggered.connect(self.onAddScriptFromFile)
        save_to_file.triggered.connect(self.saveScript)

        menu = QMenu(w)
        menu.addAction(new_from_file)
        menu.addAction(save_to_file)
        action.setMenu(menu)
        button = w.addAction(action)
        button.setPopupMode(QToolButton.InstantPopup)

        w.layout().setSpacing(1)

#.........这里部分代码省略.........

# 需要导入模块: from PyQt4.QtGui import QListView [as 别名]
# 或者: from PyQt4.QtGui.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)

        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[1:5]:
            gui.appendRadioButton(rbox, opt)

        s = gui.hSlider(gui.indentedBox(rbox),
                        self, "default_k", minValue=2, maxValue=10,
                        label="Num. of intervals:",
                        callback=self._default_disc_changed)
        s.setTracking(False)

        gui.appendRadioButton(rbox, options[-1])

        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)

        s = gui.hSlider(gui.indentedBox(controlbox),
                        self, "k", minValue=2, maxValue=10,
                        label="Num. of intervals:",
                        callback=self._disc_method_changed)
        s.setTracking(False)

        gui.appendRadioButton(controlbox, "Remove attribute")

        gui.rubber(controlbox)
        controlbox.setEnabled(False)

        self.controlbox = controlbox

        box = gui.auto_commit(
            self.controlArea, self, "autosend", "Apply",
            orientation=Qt.Horizontal,
#.........这里部分代码省略.........

# 需要导入模块: from PyQt4.QtGui import QListView [as 别名]
# 或者: from PyQt4.QtGui.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(), 200)

    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 PyQt4.QtGui import QListView [as 别名]
# 或者: from PyQt4.QtGui.QListView import selectionModel [as 别名]
class DataTypeKeysWidget(QWidget):
    dataTypeKeySelected = pyqtSignal(str)

    def __init__(self):
        QWidget.__init__(self)

        self.__filter_popup = FilterPopup(self)
        self.__filter_popup.filterSettingsChanged.connect(self.onItemChanged)

        layout = QVBoxLayout()

        self.model = DataTypeKeysListModel()
        self.filter_model = DataTypeProxyModel(self.model)

        filter_layout = QHBoxLayout()

        self.search_box = SearchBox()
        self.search_box.filterChanged.connect(self.setSearchString)
        filter_layout.addWidget(self.search_box)

        filter_popup_button = QToolButton()
        filter_popup_button.setIcon(util.resourceIcon("ide/cog_edit.png"))
        filter_popup_button.clicked.connect(self.showFilterPopup)
        filter_layout.addWidget(filter_popup_button)
        layout.addLayout(filter_layout)

        self.data_type_keys_widget = QListView()
        self.data_type_keys_widget.setModel(self.filter_model)
        self.data_type_keys_widget.selectionModel().selectionChanged.connect(self.itemSelected)

        layout.addSpacing(15)
        layout.addWidget(self.data_type_keys_widget, 2)
        layout.addStretch()

        # layout.addWidget(Legend("Default types", DataTypeKeysListModel.DEFAULT_DATA_TYPE))
        layout.addWidget(Legend("Observations available", DataTypeKeysListModel.HAS_OBSERVATIONS))

        self.setLayout(layout)

    def onItemChanged(self, item):
        self.filter_model.setShowBlockKeys(item["block"])
        self.filter_model.setShowSummaryKeys(item["summary"])
        self.filter_model.setShowGenKWKeys(item["gen_kw"])
        self.filter_model.setShowGenDataKeys(item["gen_data"])
        self.filter_model.setShowCustomPcaKeys(item["custom_pca"])

    def itemSelected(self):
        selected_item = self.getSelectedItem()
        if selected_item is not None:
            self.dataTypeKeySelected.emit(selected_item)

    def getSelectedItem(self):
        """ @rtype: str """
        index = self.data_type_keys_widget.currentIndex()
        source_index = self.filter_model.mapToSource(index)
        item = self.model.itemAt(source_index)
        return item

    def selectDefault(self):
        self.data_type_keys_widget.setCurrentIndex(self.filter_model.index(0, 0))

    def setSearchString(self, filter):
        self.filter_model.setFilterFixedString(filter)

    def showFilterPopup(self):
        self.__filter_popup.show()

# 需要导入模块: from PyQt4.QtGui import QListView [as 别名]
# 或者: from PyQt4.QtGui.QListView import selectionModel [as 别名]
class DataTypeKeysWidget(QWidget):
    dataTypeKeySelected = pyqtSignal(str)

    def __init__(self):
        QWidget.__init__(self)

        layout = QVBoxLayout()

        self.model = DataTypeKeysListModel()
        self.filter_model = DataTypeProxyModel(self.model)

        self.search_box = SearchBox()
        self.search_box.filterChanged.connect(self.setSearchString)

        layout.addWidget(self.search_box)

        data_type_model = QStandardItemModel(0, 1)
        item = QStandardItem("Select data types...")

        data_type_model.appendRow(item)

        self.__summary_item = QStandardItem("Summary")
        self.__summary_item.setFlags(Qt.ItemIsUserCheckable | Qt.ItemIsEnabled)
        self.__summary_item.setData(Qt.Checked, Qt.CheckStateRole)

        data_type_model.appendRow(self.__summary_item)

        self.__block_item = QStandardItem("Block")
        self.__block_item.setFlags(Qt.ItemIsUserCheckable | Qt.ItemIsEnabled)
        self.__block_item.setData(Qt.Checked, Qt.CheckStateRole)
        data_type_model.appendRow(self.__block_item)

        data_type_model.itemChanged.connect(self.onItemChanged)

        combo = QComboBox()
        combo.setModel(data_type_model)
        layout.addWidget(combo)

        self.data_type_keys_widget = QListView()
        self.data_type_keys_widget.setModel(self.filter_model)
        self.data_type_keys_widget.selectionModel().selectionChanged.connect(self.itemSelected)

        layout.addSpacing(15)
        layout.addWidget(self.data_type_keys_widget, 2)

        layout.addWidget(Legend("Default types", DataTypeKeysListModel.DEFAULT_DATA_TYPE))
        layout.addWidget(Legend("Observations available", DataTypeKeysListModel.HAS_OBSERVATIONS))

        self.setLayout(layout)

    def onItemChanged(self, item):
        assert isinstance(item, QStandardItem)
        checked = item.checkState()==Qt.Checked
        if item == self.__block_item:
            self.filter_model.setShowBlockKeys(checked)
        elif item == self.__summary_item:
            self.filter_model.setShowSummaryKeys(checked)


    def itemSelected(self):
        selected_item = self.getSelectedItem()
        if selected_item is not None:
            self.dataTypeKeySelected.emit(selected_item)


    def getSelectedItem(self):
        """ @rtype: str """
        index = self.data_type_keys_widget.currentIndex()
        source_index = self.filter_model.mapToSource(index)
        item = self.model.itemAt(source_index)
        return item

    def selectDefault(self):
        self.data_type_keys_widget.setCurrentIndex(self.filter_model.index(0, 0))


    def setSearchString(self, filter):
        self.filter_model.setFilterFixedString(filter)

# 需要导入模块: from PyQt4.QtGui import QListView [as 别名]
# 或者: from PyQt4.QtGui.QListView import selectionModel [as 别名]
class OWDiscretize(widget.OWWidget):
    name = "Discretize"
    description = "Discretization of continuous attributes."
    icon = "icons/Discretize.svg"
    inputs = [{"name": "Data",
               "type": Orange.data.Table,
               "handler": "set_data",
               "doc": "Input data table"}]

    outputs = [{"name": "Data",
                "type": Orange.data.Table,
                "doc": "Table with discretized features"}]

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

    default_method = settings.Setting(0)
    default_k = settings.Setting(5)

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

    want_main_area = False

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

        #: 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.widgetBox(
            self.controlArea, self.tr("Default Discretization"))
        rbox = gui.radioButtons(
            box, self, "default_method", callback=self._default_disc_changed)

        options = [
            self.tr("Default"),
            self.tr("Leave continuous"),
            self.tr("Entropy-MDL discretization"),
            self.tr("Equal-frequency discretization"),
            self.tr("Equal-width discretization"),
            self.tr("Remove continuous attributes")
        ]

        for opt in options[1:5]:
            gui.appendRadioButton(rbox, opt)

        gui.hSlider(gui.indentedBox(rbox),
                    self, "default_k", minValue=2, maxValue=10,
                    label="Num. of intervals:",
                    callback=self._default_disc_changed)

        gui.appendRadioButton(rbox, options[-1])

        vlayout = QHBoxLayout()
        box = gui.widgetBox(
            self.controlArea, "Individual Attribute Settings",
            orientation=vlayout
        )

        # 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
        controlbox = gui.radioButtons(
            box, self, "method", callback=self._disc_method_changed
        )
        vlayout.addWidget(controlbox)

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

        gui.hSlider(gui.indentedBox(controlbox),
                    self, "k", minValue=2, maxValue=10,
                    label="Num. of intervals:",
                    callback=self._disc_method_changed)

        gui.appendRadioButton(controlbox, options[-1])

        gui.rubber(controlbox)
        controlbox.setEnabled(False)

        self.controlbox = controlbox

#.........这里部分代码省略.........

# 需要导入模块: from PyQt4.QtGui import QListView [as 别名]
# 或者: from PyQt4.QtGui.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 PyQt4.QtGui import QListView [as 别名]
# 或者: from PyQt4.QtGui.QListView import selectionModel [as 别名]
class Browser(QWidget):
    entrytype = type("EntryType", (object,), dict((v,k) for k,v in enumerate(
        ["directory", "playlist", "mediafile", "url"]
    )))
    col = type("BrowserColumns", (object,), dict((v,k) for k,v in enumerate(
        ["name", "last_modified", "entrytype", "uri"]
    )))
    
    @staticmethod
    def columns():
        return len(dict((k,v) for k,v in Browser.col.__dict__.items()
                        if not k.startswith("__")))


    def __init__(self,app):
        super(Browser,self).__init__()
        self.mpd = app.mpd
        self.ih  = app.imagehelper
        self.model = QStandardItemModel(0,self.columns(),self)
        self.initGUI()
        self.initActions()

    def initGUI(self):
        self.setWindowTitle(QApplication.applicationName())
        layout = QVBoxLayout()

        headerlayout = QHBoxLayout()
        homeBtn = QToolButton()
        homeBtn.setIcon(self.ih.homeButton)
        homeBtn.setFixedSize(64,64)
        homeBtn.clicked.connect(self.home)
        headerlayout.addWidget(homeBtn)
        label = QLabel("<b>Location</b>")
        label.setMargin(10)
        label.setFixedSize(label.sizeHint())
        headerlayout.addWidget(label)
        self.currentLocation = ClickableLabel("")
        self.currentLocation.setAlignment(Qt.AlignLeft | Qt.AlignVCenter)
        self.currentLocation.setWordWrap(True)
        self.currentLocation.setFixedSize(400,64)
        self.currentLocation.clicked.connect(self.back)
        headerlayout.addWidget(self.currentLocation)
        headerlayout.addStretch()
        layout.addLayout(headerlayout)

        self.view = QListView()
        self.view.setSelectionMode( QAbstractItemView.SingleSelection)
        self.view.setEditTriggers(QAbstractItemView.NoEditTriggers)
        self.view.setContextMenuPolicy(Qt.CustomContextMenu)
        self.view.customContextMenuRequested.connect(self.contextMenu)
        self.view.setModel(self.model)
        self.view.setModelColumn(0)
        #self.view.doubleClicked.connect(self.doubleClicked)
        self.view.activated.connect(self.activated)
        layout.addWidget(self.view)
        self.setLayout(layout)

    def initActions(self):
        self.actionAdd         = QAction("Add", self)
        self.actionAddPlay     = QAction("Add and Play", self)
        self.actionInsert      = QAction("Insert", self)
        self.actionReplace     = QAction("Replace", self)
        self.actionReplacePlay = QAction("Replace and Play", self)
        self.actionUpdate      = QAction("Update", self)
        self.actionUpdateAll   = QAction("Update all", self)
        # playlist actions
        self.actionPlsRename   = QAction("Rename", self)
        self.actionPlsDelete   = QAction("Delete", self)
            
        
    def contextMenu(self,pos):
        if self.model.rowCount() == 0: return
        mi = self.view.selectionModel().currentIndex()
        if not mi.isValid(): return
        uri = self.model.item(mi.row(),self.col.uri).text()
        entrytype = int(self.model.item(mi.row(),self.col.entrytype).text())

        addfunc = None
        if entrytype != self.entrytype.playlist:
            addfunc = self.mpd.add
        else:
            addfunc = self.mpd.load
        
        popup = QMenu()
        popup.addAction(self.actionAdd)
        popup.addAction(self.actionAddPlay)
        if entrytype == self.entrytype.mediafile or \
           entrytype == self.entrytype.url:
            popup.addAction(self.actionInsert)
        popup.addAction(self.actionReplace)
        popup.addAction(self.actionReplacePlay)
        if entrytype == self.entrytype.playlist:
            popup.addAction(self.actionPlsRename)
            popup.addAction(self.actionPlsDelete)
        else:
            popup.addAction(self.actionUpdate)
        popup.addAction(self.actionUpdateAll)
        action = popup.exec_(self.mapToGlobal(pos))
        
        status = self.mpd.status()
#.........这里部分代码省略.........

# 需要导入模块: from PyQt4.QtGui import QListView [as 别名]
# 或者: from PyQt4.QtGui.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 attribute 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 PyQt4.QtGui import QListView [as 别名]
# 或者: from PyQt4.QtGui.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

    inputs = [("Time series", Table, 'set_data')]
    outputs = [("Time series", Timeseries)]

    ax1 = settings.Setting('months of year')
    ax2 = settings.Setting('years')
    agg_attr = settings.Setting([])
    agg_func = settings.Setting(0)

    def __init__(self):
        self.data = None
        self.indices = []
        box = gui.vBox(self.controlArea, 'Axes')
        self.combo_ax2 = gui.comboBox(
            box, self, 'ax2', label='Y axis:', callback=self.replot,
            sendSelectedValue=True, orientation='horizontal')
        self.combo_ax1 = gui.comboBox(
            box, self, 'ax1', label='Radial:', callback=self.replot,
            sendSelectedValue=True, orientation='horizontal')
        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.ExtendedSelection)
        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()

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

        def init_combos():
            for combo in (self.combo_ax1, self.combo_ax2):
                combo.clear()
            self.attrlist_model[:] = []
            for i in Spiralogram.AxesCategories:
                for combo in (self.combo_ax1, self.combo_ax2):
                    combo.addItem(_enum_str(i))
            for var in data.domain 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)):
                    self.attrlist_model.append(var)
                if var.is_discrete:
                    for combo in (self.combo_ax1, self.combo_ax2):
                        combo.addItem(gui.attributeIconDict[var], var.name)

        init_combos()
        self.chart.clear()

        if data is None:
            self.commit()
            return
        self.ax1 = 'months of year'
        self.ax2 = 'years'
        self.replot()

    def replot(self):
        vars = self.agg_attr
        func = AGG_FUNCTIONS[self.agg_func]
        # TODO test discrete
        if any(var.is_discrete for var in vars) and func != Mode:
            self.combo_func.setCurrentIndex(AGG_FUNCTIONS.index(Mode))
            return
        try:
            ax1 = Spiralogram.AxesCategories[_enum_str(self.ax1, True)]
        except KeyError:
            ax1 = self.data.domain[self.ax1]
        # TODO: Allow having only a sinle (i.e. radial) axis
        try:
            ax2 = Spiralogram.AxesCategories[_enum_str(self.ax2, True)]
        except KeyError:
            ax2 = self.data.domain[self.ax2]
        self.chart.setSeries(self.data, vars, ax1, ax2, func)

    def on_selection(self, indices):
        self.indices = self.chart.selection_indices(indices)
        self.commit()

    def commit(self):
        self.send('Time series', self.data[self.indices] if self.data else None)

# 需要导入模块: from PyQt4.QtGui import QListView [as 别名]
# 或者: from PyQt4.QtGui.QListView import selectionModel [as 别名]
class OWPythonScript(OWWidget):

    settingsList = ["libraryListSource", "currentScriptIndex",
                    "splitterState", "auto_execute"]

    def __init__(self, parent=None, signalManager=None):
        OWWidget.__init__(self, parent, signalManager, 'Python Script')

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

        self.outputs = [("out_data", Orange.data.Table),
                        ("out_distance", Orange.misc.SymMatrix),
                        ("out_learner", Orange.core.Learner),
                        ("out_classifier", Orange.core.Classifier, Dynamic),
                        ("out_object", object, Dynamic)]

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

        self.libraryListSource = [Script("Hello world",
                                         "print 'Hello world'\n")]
        self.currentScriptIndex = 0
        self.splitterState = None
        self.loadSettings()

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

        self._cachedDocuments = {}

        self.infoBox = OWGUI.widgetBox(self.controlArea, 'Info')
        OWGUI.label(
            self.infoBox, self,
            "<p>Execute python script.</p><p>Input variables:<ul><li> " +
            "<li>".join(t[0] for t in self.inputs) +
            "</ul></p><p>Output variables:<ul><li>" +
            "<li>".join(t[0] for t in self.outputs) +
            "</ul></p>"
        )

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

        self.libraryList.wrap(self.libraryListSource)

        self.controlBox = OWGUI.widgetBox(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 = 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 a script from a file", self)
        save_to_file = QAction("Save selected script to a file", self)
        save_to_file.setShortcut(QKeySequence(QKeySequence.SaveAs))

#.........这里部分代码省略.........

# 需要导入模块: from PyQt4.QtGui import QListView [as 别名]
# 或者: from PyQt4.QtGui.QListView import selectionModel [as 别名]

#.........这里部分代码省略.........
        self.pushButton_up_arrow.setMinimumSize(QSize(50,50))
        self.pushButton_up_arrow.setMaximumSize(QSize(50,50))
        self.pushButton_up_arrow.setIcon(QIcon(':/up_arrow.png'))
        self.pushButton_up_arrow.setIconSize(QSize(50,50))
        self.pushButton_up_arrow.setText('')
        self.verticalLayout_up_down.addWidget(self.pushButton_up_arrow)
        self.pushButton_down_arrow = QPushButton(parentWidget)
        sizePolicy.setHeightForWidth(
            self.pushButton_down_arrow.sizePolicy().hasHeightForWidth())
        self.pushButton_down_arrow.setSizePolicy(sizePolicy)
        self.pushButton_down_arrow.setMinimumSize(QSize(50,50))
        self.pushButton_down_arrow.setMaximumSize(QSize(50,50))
        self.pushButton_down_arrow.setIcon(QIcon(':/down_arrow.png'))
        self.pushButton_down_arrow.setIconSize(QSize(50,50))
        self.pushButton_down_arrow.setText('')
        self.verticalLayout_up_down.addWidget(self.pushButton_down_arrow)
        spacerItem = QSpacerItem(20,178,QSizePolicy.Minimum,QSizePolicy.Expanding)
        self.verticalLayout_up_down.addItem(spacerItem)
        self.gridLayout.addLayout(self.verticalLayout_up_down, 0, 5, 1, 1)

        self.listView_NotSelected.setSelectionMode(QAbstractItemView.ExtendedSelection)
        self.listView_Selected.setSelectionMode(QAbstractItemView.ExtendedSelection)

        self.listView_NotSelected.setModel(self.model.model_NotSelected)
        self.listView_Selected.setModel(self.model.model_Selected)



    #----------------------------------------------------------------------
    def on_right_arrow_press(self):
        """"""

        NSMod = self.listView_NotSelected.model()
        NSSelMod = self.listView_NotSelected.selectionModel()

        SMod = self.listView_Selected.model()
        SSelMod = self.listView_Selected.selectionModel()

        mod_ind_list = NSSelMod.selectedRows(0)
        if mod_ind_list == []:
            return
        else:
            SSelMod.clearSelection()
        while mod_ind_list != []:
            mod_ind = mod_ind_list[0]

            item = NSMod.itemFromIndex(mod_ind)
            new_item = item.clone()
            SMod.appendRow(new_item)
            SSelMod.select(SMod.indexFromItem(new_item),
                           QItemSelectionModel.Select)
            NSMod.removeRow(mod_ind.row())

            mod_ind_list = NSSelMod.selectedRows(0)

    #----------------------------------------------------------------------
    def on_left_arrow_press(self):
        """"""

        SMod = self.listView_Selected.model()
        SSelMod = self.listView_Selected.selectionModel()

        NSMod = self.listView_NotSelected.model()
        NSSelMod = self.listView_NotSelected.selectionModel()

        mod_ind_list = SSelMod.selectedRows(0)

# 需要导入模块: from PyQt4.QtGui import QListView [as 别名]
# 或者: from PyQt4.QtGui.QListView import selectionModel [as 别名]
class OWMoleculeVisualizer(OWWidget):
    settingsList = ["colorFragmets", "showFragments"]

    contextHandlers = {
        "": DomainContextHandler(
            "",
            [ContextField("selected_title_indices"),
             ContextField("moleculeTitleAttributeList",
                          (DomainContextHandler.List +
                           DomainContextHandler.SelectedRequired +
                           DomainContextHandler.IncludeMetaAttributes),
                          selected="selectedMoleculeTitleAttrs"),
             ContextField("smiles_var",
                          DomainContextHandler.Required +
                          DomainContextHandler.IncludeMetaAttributes)],
             maxAttributesToPickle=1000)
    }

    def __init__(self, parent=None, signalManager=None,
                 title="Molecule visualizer"):
        super(OWMoleculeVisualizer, self).__init__(parent, signalManager, title)

        self.colorFragments = 1
        self.showFragments = 0
        self.selectedFragment = ""
        self.moleculeSmiles = []
        self.fragmentSmiles = []
        self.defFragmentSmiles = []
        self.smiles_var = 0
        self.moleculeTitleAttr = 0
        self.moleculeTitleAttributeList = []
        self.selectedMoleculeTitleAttrs = []
        self.fragmentSmilesAttr = 0
        self.imageSize = 200
        self.numColumns = 4
        self.commitOnChange = 0

        ## GUI
        box = OWGUI.widgetBox(self.controlArea, "Info", addSpace=True)
        self.infoLabel = OWGUI.label(box, self, "Chemicals:")
        box = OWGUI.radioButtonsInBox(
            self.controlArea, self, "showFragments",
            ["Show molecules", "Show fragments"], "Show",
            callback=self.updateitems
        )

        self.showFragmentsRadioButton = box.buttons[-1]
        self.markFragmentsCheckBox = OWGUI.checkBox(
            box, self, "colorFragments", "Mark fragments",
            callback=self._update
        )
        box.setSizePolicy(
            QSizePolicy(QSizePolicy.Minimum, QSizePolicy.Maximum))
        OWGUI.separator(self.controlArea)

        self.moleculeSmilesCombo = OWGUI.comboBox(
            self.controlArea, self, "smiles_var",
            "Molecule SMILES Attribute",
            callback=self.updateitems
        )
        self.moleculeSmilesCombo.box.setSizePolicy(
            QSizePolicy(QSizePolicy.Minimum, QSizePolicy.Maximum)
        )
        self.smiles_var_model = VariableListModel(parent=self)
        self.moleculeSmilesCombo.setModel(self.smiles_var_model)

        OWGUI.separator(self.controlArea)
        box = OWGUI.widgetBox(self.controlArea, "Molecule Title Attributes",
                              addSpace=True)

        self.title_var_view = QListView(
            selectionMode=QListView.ExtendedSelection
        )
        self.title_var_model = VariableListModel(parent=self)
        self.title_var_view.setModel(self.title_var_model)
        self.title_var_view.selectionModel().selectionChanged.connect(
            self._title_selection_changed
        )
        box.layout().addWidget(self.title_var_view)

        OWGUI.separator(self.controlArea)
        self.fragmentSmilesCombo = OWGUI.comboBox(
            self.controlArea, self, "fragmentSmilesAttr",
            "Fragment SMILES Attribute",
            callback=self.updateFragmentsListBox
        )

        self.fragmentSmilesCombo.setModel(VariableListModel(parent=self))
        self.fragmentSmilesCombo.box.setSizePolicy(
            QSizePolicy(QSizePolicy.Minimum, QSizePolicy.Maximum)
        )
        OWGUI.separator(self.controlArea)
        box = OWGUI.spin(self.controlArea, self, "imageSize", 50, 500, 10,
                         box="Image Size", callback=self._image_size_changed)

        box.setSizePolicy(
            QSizePolicy(QSizePolicy.Minimum, QSizePolicy.Maximum))

        OWGUI.separator(self.controlArea)
        box = OWGUI.widgetBox(self.controlArea, "Selection", addSpace=True)
#.........这里部分代码省略.........