def __init__(self, parent=None, signalManager=None, name="Preprocess"):
OWWidget.__init__(self, parent, signalManager, name)
self.inputs = [("Example Table", ExampleTable, self.setData)
] #, ("Learner", orange.Learner, self.setLearner)]
self.outputs = [("Preprocess", orngWrap.PreprocessedLearner),
("Preprocessed Example Table", ExampleTable)
] #, ("Preprocessor", orange.Preprocessor)]
self.autoCommit = False
self.changedFlag = False
# self.allSchemas = [PreprocessorSchema("Default" , [Preprocessor_discretize(method=orange.EntropyDiscretization()), Preprocessor_dropMissing()])]
self.allSchemas = [("Default", [
Preprocessor_discretizeEntropy(
method=orange.EntropyDiscretization()),
Preprocessor_dropMissing()
], 0)]
self.lastSelectedSchemaIndex = 0
self.preprocessorsList = PyListModel([], self)
box = OWGUI.widgetBox(self.controlArea, "Preprocessors", addSpace=True)
box.layout().setSpacing(1)
self.setStyleSheet("QListView::item { margin: 1px;}")
self.preprocessorsListView = QListView()
self.preprocessorsListSelectionModel = ListSingleSelectionModel(
self.preprocessorsList, self)
self.preprocessorsListView.setItemDelegate(
PreprocessorItemDelegate(self))
self.preprocessorsListView.setModel(self.preprocessorsList)
self.preprocessorsListView.setSelectionModel(
self.preprocessorsListSelectionModel)
self.preprocessorsListView.setSelectionMode(QListView.SingleSelection)
self.connect(self.preprocessorsListSelectionModel,
SIGNAL("selectedIndexChanged(QModelIndex)"),
self.onPreprocessorSelection)
self.connect(self.preprocessorsList,
SIGNAL("dataChanged(QModelIndex, QModelIndex)"),
lambda arg1, arg2: self.commitIf)
box.layout().addWidget(self.preprocessorsListView)
self.addPreprocessorAction = QAction("+", self)
self.addPreprocessorAction.pyqtConfigure(
toolTip="Add a new preprocessor to the list")
self.removePreprocessorAction = QAction("-", self)
self.removePreprocessorAction.pyqtConfigure(
toolTip="Remove selected preprocessor from the list")
self.removePreprocessorAction.setEnabled(False)
self.connect(
self.preprocessorsListSelectionModel,
SIGNAL("selectedIndexChanged(QModelIndex)"), lambda index: self.
removePreprocessorAction.setEnabled(index.isValid()))
actionsWidget = ModelActionsWidget(
[self.addPreprocessorAction, self.removePreprocessorAction])
actionsWidget.layout().setSpacing(1)
actionsWidget.layout().addStretch(10)
box.layout().addWidget(actionsWidget)
self.connect(self.addPreprocessorAction, SIGNAL("triggered()"),
self.onAddPreprocessor)
self.connect(self.removePreprocessorAction, SIGNAL("triggered()"),
self.onRemovePreprocessor)
box = OWGUI.widgetBox(self.controlArea, "Saved Schemas", addSpace=True)
self.schemaFilterEdit = OWGUIEx.LineEditFilter(self)
box.layout().addWidget(self.schemaFilterEdit)
self.schemaList = PyListModel([],
self,
flags=Qt.ItemIsSelectable
| Qt.ItemIsEditable | Qt.ItemIsEnabled)
self.schemaListProxy = PySortFilterProxyModel(filter_fmt="{0.name}",
parent=self)
self.schemaListProxy.setFilterCaseSensitivity(Qt.CaseInsensitive)
self.schemaListProxy.setSourceModel(self.schemaList)
self.schemaListView = QListView()
self.schemaListView.setItemDelegate(PreprocessorSchemaDelegate(self))
# self.schemaListView.setModel(self.schemaList)
self.schemaListView.setModel(self.schemaListProxy)
self.connect(self.schemaFilterEdit, SIGNAL("textEdited(QString)"),
self.schemaListProxy.setFilterRegExp)
box.layout().addWidget(self.schemaListView)
self.schemaListSelectionModel = ListSingleSelectionModel(
self.schemaListProxy, self)
self.schemaListView.setSelectionMode(QListView.SingleSelection)
self.schemaListView.setSelectionModel(self.schemaListSelectionModel)
self.connect(self.schemaListSelectionModel,
SIGNAL("selectedIndexChanged(QModelIndex)"),
self.onSchemaSelection)
self.addSchemaAction = QAction("+", self)
self.addSchemaAction.pyqtConfigure(
toolTip="Add a new preprocessor schema")
self.updateSchemaAction = QAction("Update", self)
self.updateSchemaAction.pyqtConfigure(
toolTip="Save changes made in the current schema")
self.removeSchemaAction = QAction("-", self)
self.removeSchemaAction.pyqtConfigure(toolTip="Remove selected schema")
self.updateSchemaAction.setEnabled(False)
self.removeSchemaAction.setEnabled(False)
actionsWidget = ModelActionsWidget([])
actionsWidget.addAction(self.addSchemaAction)
actionsWidget.addAction(self.updateSchemaAction).setSizePolicy(
QSizePolicy.MinimumExpanding, QSizePolicy.Fixed)
actionsWidget.addAction(self.removeSchemaAction)
actionsWidget.layout().setSpacing(1)
box.layout().addWidget(actionsWidget)
self.connect(self.addSchemaAction, SIGNAL("triggered()"),
self.onAddSchema)
self.connect(self.updateSchemaAction, SIGNAL("triggered()"),
self.onUpdateSchema)
self.connect(self.removeSchemaAction, SIGNAL("triggered()"),
self.onRemoveSchema)
self.addPreprocessorsMenuActions = actions = []
for name, pp, kwargs in self.preprocessors:
action = QAction(name, self)
self.connect(action,
SIGNAL("triggered()"),
lambda pp=pp, kwargs=kwargs: self.addPreprocessor(
pp(**kwargs)))
actions.append(action)
box = OWGUI.widgetBox(self.controlArea, "Output")
cb = OWGUI.checkBox(box,
self,
"autoCommit",
"Commit on any change",
callback=self.commitIf)
b = OWGUI.button(box, self, "Commit", callback=self.commit)
OWGUI.setStopper(self, b, cb, "changedFlag", callback=self.commitIf)
self.mainAreaStack = QStackedLayout()
self.stackedEditorsCache = {}
OWGUI.widgetBox(self.mainArea, orientation=self.mainAreaStack)
self.data = None
self.learner = None
self.loadSettings()
self.activateLoadedSettings()
