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 = PyListModel(keys)
self.separate_view.setModel(model)
self.connect(
self.separate_view.selectionModel(),
SIGNAL("selectionChanged(QItemSelection, QItemSelection)"),
self.on_separate_key_changed)
model = PyListModel(keys)
self.relevant_view.setModel(model)
self.connect(
self.relevant_view.selectionModel(),
SIGNAL("selectionChanged(QItemSelection, QItemSelection)"),
self.on_relevant_key_changed)
self.openContext("", keys)
# Get the selected keys from the open context
context = self.currentContexts[""]
separate_keys = getattr(context, "separate_keys", set())
relevant_keys = getattr(context, "relevant_keys", set())
def select(model, selection_model, selected_items):
all_items = list(model)
try:
indices = [all_items.index(item) for item in selected_items]
except:
indices = []
for ind in indices:
selection_model.select(model.index(ind),
QItemSelectionModel.Select)
self._disable_updates = True
try:
select(self.relevant_view.model(),
self.relevant_view.selectionModel(), relevant_keys)
select(self.separate_view.model(),
self.separate_view.selectionModel(), separate_keys)
finally:
self._disable_updates = False
def set_data(self, data=None):
""" Set the input example table.
"""
self.closeContext()
self.clear()
self.data = data
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
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(PyListModel([]))
self.relevant_view.setModel(PyListModel([]))
self.groups_scroll_area.setWidget(QWidget())
self.info_box.setText("No data on input.\n")
self.commit()
def __init__(self,
parent=None,
signalManager=None,
title="Quality Control"):
OWWidget.__init__(self, parent, signalManager, title, wantGraph=True)
self.inputs = [("Experiment Data", Orange.data.Table, self.set_data)]
## Settings
self.selected_distance_index = 0
## Attributes
self.data = None
self.distances = None
self.groups = None
self.unique_pos = None
self.base_group_index = 0
## GUI
box = OWGUI.widgetBox(self.controlArea, "Info")
self.info_box = OWGUI.widgetLabel(box, "\n")
## Separate By box
box = OWGUI.widgetBox(self.controlArea, "Separate By")
self.split_by_model = PyListModel()
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.connect(
self.split_by_view.selectionModel(),
SIGNAL("selectionChanged(QItemSelection, QItemSelection)"),
self.on_split_key_changed)
## Sort By box
box = OWGUI.widgetBox(self.controlArea, "Sort By")
self.sort_by_model = PyListModel()
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.connect(
self.sort_by_view.selectionModel(),
SIGNAL("selectionChanged(QItemSelection, QItemSelection)"),
self.on_sort_key_changed)
## Distance box
box = OWGUI.widgetBox(self.controlArea, "Distance Measure")
OWGUI.comboBox(box,
self,
"selected_distance_index",
items=[t[0] for t in self.DISTANCE_FUNCTIONS],
callback=self.on_distance_measure_changed)
self.connect(self.graphButton, SIGNAL("clicked()"), self.save_graph)
self.scene = QGraphicsScene()
self.scene_view = QualityGraphicsView(self.scene)
self.scene_view.setRenderHints(QPainter.Antialiasing)
self.scene_view.setAlignment(Qt.AlignLeft | Qt.AlignVCenter)
self.mainArea.layout().addWidget(self.scene_view)
self.connect(self.scene_view, SIGNAL("view_size_changed(QSize)"),
self.on_view_resize)
self._disable_updates = False
self._cached_distances = {}
self._base_index_hints = {}
self.main_widget = None
self.resize(800, 600)
