def move_rows(self, view: QListView, offset: int, roles=(Qt.EditRole,)):
rows = [idx.row() for idx in view.selectionModel().selectedRows()]
model = view.model() # type: QAbstractItemModel
rowcount = model.rowCount()
newrows = [min(max(0, row + offset), rowcount - 1) for row in rows]
def itemData(index):
return {role: model.data(index, role) for role in roles}
for row, newrow in sorted(zip(rows, newrows), reverse=offset > 0):
d1 = itemData(model.index(row, 0))
d2 = itemData(model.index(newrow, 0))
model.setItemData(model.index(row, 0), d2)
model.setItemData(model.index(newrow, 0), d1)
selection = QItemSelection()
for nrow in newrows:
index = model.index(nrow, 0)
selection.select(index, index)
view.selectionModel().select(
selection, QItemSelectionModel.ClearAndSelect)
self.commit()
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()
self.error(0)
self.warning(0)
if data is not None:
keys = self.get_suitable_keys(data)
if not keys:
self.error(0, "Data has no suitable feature labels.")
data = None
self.data = data
if data is not None:
self.on_new_data()
def update_label_candidates(self):
"""Update the label candidates selection GUI
(Group/Sort By views).
"""
keys = self.get_suitable_keys(self.data)
with disable_updates(self):
self.split_by_model[:] = keys
self.sort_by_model[:] = keys
def get_suitable_keys(self, data):
""" Return suitable attr label keys from the data where
the key has at least two unique values in the data.
"""
attrs = [attr.attributes.items() for attr in data.domain.attributes]
attrs = reduce(operator.iadd, attrs, [])
# in case someone put non string values in attributes dict
attrs = [(str(key), str(value)) for key, value in attrs]
attrs = set(attrs)
values = defaultdict(set)
for key, value in attrs:
values[key].add(value)
keys = [key for key in values if len(values[key]) > 1]
return keys
def selected_split_by_labels(self):
"""Return the current selected split labels.
"""
sel_m = self.split_by_view.selectionModel()
indices = [r.row() for r in sel_m.selectedRows()]
return [self.sort_by_model[i] for i in indices]
def selected_sort_by_labels(self):
"""Return the current selected sort labels
"""
sel_m = self.sort_by_view.selectionModel()
indices = [r.row() for r in sel_m.selectedRows()]
return [self.sort_by_model[i] for i in indices]
def selected_distance(self):
"""Return the selected distance function.
"""
return self.DISTANCE_FUNCTIONS[self.selected_distance_index][1]
def selected_base_group_index(self):
"""Return the selected base group index
"""
return self.base_group_index
def selected_base_indices(self, base_group_index=None):
indices = []
for g, ind in self.groups:
if base_group_index is None:
label = group_label(self.selected_split_by_labels(), g)
ind = [i for i in ind if i is not None]
i = self._base_index_hints.get(label, ind[0] if ind else None)
else:
i = ind[base_group_index]
indices.append(i)
return indices
def on_new_data(self):
"""We have new data and need to recompute all.
"""
self.closeContext()
self.update_label_candidates()
self.info_box.setText(
"%s genes \n%s experiments" %
(len(self.data), len(self.data.domain.attributes))
)
self.base_group_index = 0
keys = self.get_suitable_keys(self.data)
self.openContext(keys)
## Restore saved context settings (split/sort selection)
split_by_labels = self.split_by_labels
sort_by_labels = self.sort_by_labels
def select(model, selection_model, selected_items):
"""Select items in a Qt item model view
"""
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)
with disable_updates(self):
select(self.split_by_view.model(),
self.split_by_view.selectionModel(),
split_by_labels)
select(self.sort_by_view.model(),
self.sort_by_view.selectionModel(),
sort_by_labels)
with widget_disable(self):
self.split_and_update()
def on_split_key_changed(self, *args):
"""Split key has changed
"""
with widget_disable(self):
if not self._disable_updates:
self.base_group_index = 0
self.split_by_labels = self.selected_split_by_labels()
self.split_and_update()
def on_sort_key_changed(self, *args):
"""Sort key has changed
"""
with widget_disable(self):
if not self._disable_updates:
self.base_group_index = 0
self.sort_by_labels = self.selected_sort_by_labels()
self.split_and_update()
def on_distance_measure_changed(self):
"""Distance measure has changed
"""
if self.data is not None:
with widget_disable(self):
self.update_distances()
self.replot_experiments()
def on_view_resize(self, size):
"""The view with the quality plot has changed
"""
if self.main_widget:
current = self.main_widget.size()
self.main_widget.resize(size.width() - 6,
current.height())
self.scene.setSceneRect(self.scene.itemsBoundingRect())
def on_rug_item_clicked(self, item):
"""An ``item`` in the quality plot has been clicked.
"""
update = False
sort_by_labels = self.selected_sort_by_labels()
if sort_by_labels and item.in_group:
## The item is part of the group
if item.group_index != self.base_group_index:
self.base_group_index = item.group_index
update = True
else:
if sort_by_labels:
# If the user clicked on an background item it
# invalidates the sorted labels selection
with disable_updates(self):
self.sort_by_view.selectionModel().clear()
update = True
index = item.index
group = item.group
label = group_label(self.selected_split_by_labels(), group)
if self._base_index_hints.get(label, 0) != index:
self._base_index_hints[label] = index
update = True
if update:
with widget_disable(self):
self.split_and_update()
def eventFilter(self, obj, event):
if obj is self.scene_view and event.type() == QEvent.Resize:
self.on_view_resize(event.size())
return super().eventFilter(obj, event)
def split_and_update(self):
"""
Split the data based on the selected sort/split labels
and update the quality plot.
"""
split_labels = self.selected_split_by_labels()
sort_labels = self.selected_sort_by_labels()
self.warning(0)
if not split_labels:
self.warning(0, "No separate by label selected.")
self.groups, self.unique_pos = \
exp.separate_by(self.data, split_labels,
consider=sort_labels,
add_empty=True)
self.groups = sorted(self.groups.items(),
key=lambda t: list(map(float_if_posible, t[0])))
self.unique_pos = sorted(self.unique_pos.items(),
key=lambda t: list(map(float_if_posible, t[0])))
if self.groups:
if sort_labels:
group_base = self.selected_base_group_index()
base_indices = self.selected_base_indices(group_base)
else:
base_indices = self.selected_base_indices()
self.update_distances(base_indices)
self.replot_experiments()
def get_cached_distances(self, measure):
if measure not in self._cached_distances:
attrs = self.data.domain.attributes
mat = numpy.zeros((len(attrs), len(attrs)))
self._cached_distances[measure] = \
(mat, set(zip(range(len(attrs)), range(len(attrs)))))
return self._cached_distances[measure]
def get_cached_distance(self, measure, i, j):
matrix, computed = self.get_cached_distances(measure)
key = (i, j) if i < j else (j, i)
if key in computed:
return matrix[i, j]
else:
return None
def get_distance(self, measure, i, j):
d = self.get_cached_distance(measure, i, j)
if d is None:
vec_i = take_columns(self.data, [i])
vec_j = take_columns(self.data, [j])
d = measure(vec_i, vec_j)
mat, computed = self.get_cached_distances(measure)
mat[i, j] = d
key = key = (i, j) if i < j else (j, i)
computed.add(key)
return d
def store_distance(self, measure, i, j, dist):
matrix, computed = self.get_cached_distances(measure)
key = (i, j) if i < j else (j, i)
matrix[j, i] = matrix[i, j] = dist
computed.add(key)
def update_distances(self, base_indices=()):
"""Recompute the experiment distances.
"""
distance = self.selected_distance()
if base_indices == ():
base_group_index = self.selected_base_group_index()
base_indices = [ind[base_group_index] \
for _, ind in self.groups]
assert(len(base_indices) == len(self.groups))
base_distances = []
attributes = self.data.domain.attributes
pb = gui.ProgressBar(self, len(self.groups) * len(attributes))
for (group, indices), base_index in zip(self.groups, base_indices):
# Base column of the group
if base_index is not None:
base_vec = take_columns(self.data, [base_index])
distances = []
# Compute the distances between base column
# and all the rest data columns.
for i in range(len(attributes)):
if i == base_index:
distances.append(0.0)
elif self.get_cached_distance(distance, i, base_index) is not None:
distances.append(self.get_cached_distance(distance, i, base_index))
else:
vec_i = take_columns(self.data, [i])
dist = distance(base_vec, vec_i)
self.store_distance(distance, i, base_index, dist)
distances.append(dist)
pb.advance()
base_distances.append(distances)
else:
base_distances.append(None)
pb.finish()
self.distances = base_distances
def replot_experiments(self):
"""Replot the whole quality plot.
"""
self.scene.clear()
labels = []
max_dist = numpy.nanmax(list(filter(None, self.distances)))
rug_widgets = []
group_pen = QPen(Qt.black)
group_pen.setWidth(2)
group_pen.setCapStyle(Qt.RoundCap)
background_pen = QPen(QColor(0, 0, 250, 150))
background_pen.setWidth(1)
background_pen.setCapStyle(Qt.RoundCap)
main_widget = QGraphicsWidget()
layout = QGraphicsGridLayout()
attributes = self.data.domain.attributes
if self.data is not None:
for (group, indices), dist_vec in zip(self.groups, self.distances):
indices_set = set(indices)
rug_items = []
if dist_vec is not None:
for i, attr in enumerate(attributes):
# Is this a within group distance or background
in_group = i in indices_set
if in_group:
rug_item = ClickableRugItem(dist_vec[i] / max_dist,
1.0, self.on_rug_item_clicked)
rug_item.setPen(group_pen)
tooltip = experiment_description(attr)
rug_item.setToolTip(tooltip)
rug_item.group_index = indices.index(i)
rug_item.setZValue(rug_item.zValue() + 1)
else:
rug_item = ClickableRugItem(dist_vec[i] / max_dist,
0.85, self.on_rug_item_clicked)
rug_item.setPen(background_pen)
tooltip = experiment_description(attr)
rug_item.setToolTip(tooltip)
rug_item.group = group
rug_item.index = i
rug_item.in_group = in_group
rug_items.append(rug_item)
rug_widget = RugGraphicsWidget(parent=main_widget)
rug_widget.set_rug(rug_items)
rug_widgets.append(rug_widget)
label = group_label(self.selected_split_by_labels(), group)
label_item = QGraphicsSimpleTextItem(label, main_widget)
label_item = GraphicsSimpleTextLayoutItem(label_item, parent=layout)
label_item.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed)
labels.append(label_item)
for i, (label, rug_w) in enumerate(zip(labels, rug_widgets)):
layout.addItem(label, i, 0, Qt.AlignVCenter)
layout.addItem(rug_w, i, 1)
layout.setRowMaximumHeight(i, 30)
main_widget.setLayout(layout)
self.scene.addItem(main_widget)
self.main_widget = main_widget
self.rug_widgets = rug_widgets
self.labels = labels
self.on_view_resize(self.scene_view.size())
def _set_selection(view: QListView, indices: List[int]):
view.clearSelection()
sm = view.selectionModel()
model = view.model()
for ind in indices:
sm.select(model.index(ind), QItemSelectionModel.Select)
class SortedListWidget(QWidget):
sortingOrderChanged = Signal()
class _MyItemDelegate(QStyledItemDelegate):
def __init__(self, sortingModel, parent):
QStyledItemDelegate.__init__(self, parent)
self.sortingModel = sortingModel
def sizeHint(self, option, index):
size = QStyledItemDelegate.sizeHint(self, option, index)
return QSize(size.width(), size.height() + 4)
def createEditor(self, parent, option, index):
cb = QComboBox(parent)
cb.setModel(self.sortingModel)
cb.showPopup()
return cb
def setEditorData(self, editor, index):
pass # TODO: sensible default
def setModelData(self, editor, model, index):
text = editor.currentText()
model.setData(index, text)
def __init__(self, *args):
QWidget.__init__(self, *args)
self.setContentsMargins(0, 0, 0, 0)
gridLayout = QGridLayout()
gridLayout.setContentsMargins(0, 0, 0, 0)
gridLayout.setSpacing(1)
model = QStandardItemModel(self)
model.rowsInserted.connect(self.__changed)
model.rowsRemoved.connect(self.__changed)
model.dataChanged.connect(self.__changed)
self._listView = QListView(self)
self._listView.setModel(model)
# self._listView.setDragEnabled(True)
self._listView.setDropIndicatorShown(True)
self._listView.setDragDropMode(QListView.InternalMove)
self._listView.viewport().setAcceptDrops(True)
self._listView.setMinimumHeight(100)
gridLayout.addWidget(self._listView, 0, 0, 2, 2)
vButtonLayout = QVBoxLayout()
self._upAction = QAction(
"\u2191", self, toolTip="Move up")
self._upButton = QToolButton(self)
self._upButton.setDefaultAction(self._upAction)
self._upButton.setSizePolicy(
QSizePolicy.Fixed, QSizePolicy.MinimumExpanding)
self._downAction = QAction(
"\u2193", self, toolTip="Move down")
self._downButton = QToolButton(self)
self._downButton.setDefaultAction(self._downAction)
self._downButton.setSizePolicy(
QSizePolicy.Fixed, QSizePolicy.MinimumExpanding)
vButtonLayout.addWidget(self._upButton)
vButtonLayout.addWidget(self._downButton)
gridLayout.addLayout(vButtonLayout, 0, 2, 2, 1)
hButtonLayout = QHBoxLayout()
self._addAction = QAction("+", self)
self._addButton = QToolButton(self)
self._addButton.setDefaultAction(self._addAction)
self._removeAction = QAction("-", self)
self._removeButton = QToolButton(self)
self._removeButton.setDefaultAction(self._removeAction)
hButtonLayout.addWidget(self._addButton)
hButtonLayout.addWidget(self._removeButton)
hButtonLayout.addStretch(10)
gridLayout.addLayout(hButtonLayout, 2, 0, 1, 2)
self.setLayout(gridLayout)
self._addAction.triggered.connect(self._onAddAction)
self._removeAction.triggered.connect(self._onRemoveAction)
self._upAction.triggered.connect(self._onUpAction)
self._downAction.triggered.connect(self._onDownAction)
def sizeHint(self):
size = QWidget.sizeHint(self)
return QSize(size.width(), 100)
def _onAddAction(self):
item = QStandardItem("")
item.setFlags(item.flags() ^ Qt.ItemIsDropEnabled)
self._listView.model().appendRow(item)
self._listView.setCurrentIndex(item.index())
self._listView.edit(item.index())
def _onRemoveAction(self):
current = self._listView.currentIndex()
self._listView.model().takeRow(current.row())
def _onUpAction(self):
row = self._listView.currentIndex().row()
model = self._listView.model()
if row > 0:
items = model.takeRow(row)
model.insertRow(row - 1, items)
self._listView.setCurrentIndex(model.index(row - 1, 0))
def _onDownAction(self):
row = self._listView.currentIndex().row()
model = self._listView.model()
if row < model.rowCount() and row >= 0:
items = model.takeRow(row)
if row == model.rowCount():
model.appendRow(items)
else:
model.insertRow(row + 1, items)
self._listView.setCurrentIndex(model.index(row + 1, 0))
def setModel(self, model):
""" Set a model to select items from
"""
self._model = model
self._listView.setItemDelegate(self._MyItemDelegate(self._model, self))
def addItem(self, *args):
""" Add a new entry in the list
"""
item = QStandardItem(*args)
item.setFlags(item.flags() ^ Qt.ItemIsDropEnabled)
self._listView.model().appendRow(item)
def setItems(self, items):
self._listView.model().clear()
for item in items:
self.addItem(item)
def items(self):
order = []
for row in range(self._listView.model().rowCount()):
order.append(str(self._listView.model().item(row, 0).text()))
return order
def __changed(self):
self.sortingOrderChanged.emit()
sortingOrder = property(items, setItems)
class OWGenotypeDistances(widget.OWWidget):
name = "Expression Profile Distances"
description = ("Compute distances between expression profiles of "
"different experimental factors.")
icon = "../widgets/icons/GenotypeDistances.svg"
priority = 1050
inputs = [("Data", Orange.data.Table, "set_data")]
outputs = [("Distances", Orange.misc.DistMatrix),
("Sorted Data", Orange.data.Table)]
settingsHandler = SetContextHandler()
separate_keys = settings.ContextSetting({})
relevant_keys = settings.ContextSetting({})
distance_measure = settings.Setting(0)
auto_commit = settings.Setting(False)
DISTANCE_FUNCTIONS = [
("Distance from Pearson correlation", dist_pcorr),
("Euclidean distance", dist_eucl),
("Distance from Spearman correlation", dist_spearman)
]
def __init__(self, parent=None):
super().__init__(self, parent)
self.data = None
self.partitions = []
self.matrix = None
self.split_groups = []
self._disable_updates = False
########
# GUI
########
box = gui.widgetBox(self.controlArea, "Input")
self.info_box = gui.widgetLabel(box, "No data on input\n")
box = gui.widgetBox(self.controlArea, "Separate By",
addSpace=True)
self.separate_view = QListView(
selectionMode=QListView.MultiSelection
)
box.layout().addWidget(self.separate_view)
box = gui.widgetBox(self.controlArea, "Sort By",
addSpace=True)
self.relevant_view = QListView(
selectionMode=QListView.MultiSelection)
box.layout().addWidget(self.relevant_view)
self.distance_view = gui.comboBox(
self.controlArea, self, "distance_measure",
box="Distance Measure",
items=[name for name, _ in self.DISTANCE_FUNCTIONS])
gui.rubber(self.controlArea)
gui.auto_commit(self.controlArea, self, "auto_commit", "Commit")
self.groups_box = gui.widgetBox(self.mainArea, "Groups")
self.groups_scroll_area = QScrollArea()
self.groups_box.layout().addWidget(self.groups_scroll_area)
def sizeHint(self):
return QSize(800, 600)
def clear(self):
self.data = None
self.partitions = []
self.split_groups = []
self.matrix = None
def get_suitable_keys(self, data):
"""Return suitable attr label keys from the data where the key has at least
two unique values in the data.
"""
attrs = [attr.attributes.items() for attr in data.domain.attributes]
attrs = reduce(operator.iadd, attrs, [])
# in case someone put non string values in attributes dict
attrs = [(str(key), str(value)) for key, value in attrs]
attrs = set(attrs)
values = defaultdict(set)
for key, value in attrs:
values[key].add(value)
keys = [key for key in values if len(values[key]) > 1]
return keys
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)
select(self.separate_view.model(),
self.separate_view.selectionModel(),
separate_keys)
finally:
self._disable_updates = False
def on_separate_key_changed(self, *args):
if not self._disable_updates:
self.separate_keys = self.selected_separeate_by_keys()
self.split_data()
def on_relevant_key_changed(self, *args):
if not self._disable_updates:
self.relevant_keys = self.selected_relevant_keys()
self.split_data()
def selected_separeate_by_keys(self):
"""Return the currently selected separate by keys
"""
rows = self.separate_view.selectionModel().selectedRows()
rows = sorted([idx.row() for idx in rows])
keys = [self.separate_view.model()[row] for row in rows]
return keys
def selected_relevant_keys(self):
"""Return the currently selected relevant keys
"""
rows = self.relevant_view.selectionModel().selectedRows()
rows = sorted([idx.row() for idx in rows])
keys = [self.relevant_view.model()[row] for row in rows]
return keys
def split_data(self):
"""Split the data and update the Groups widget
"""
separate_keys = self.selected_separeate_by_keys()
relevant_keys = self.selected_relevant_keys()
self.warning(0)
if not separate_keys:
self.warning(0, "No separate by column selected.")
partitions, uniquepos = separate_by(
self.data, separate_keys, consider=relevant_keys)
partitions = partitions.items()
all_values = defaultdict(set)
for a in [at.attributes for at in self.data.domain.attributes]:
for k, v in a.items():
all_values[k].add(v)
# sort groups
pkeys = [key for key, _ in partitions]
types = [data_type([a[i] for a in pkeys])
for i in range(len(pkeys[0]))]
partitions = sorted(partitions, key=lambda x:
tuple(types[i](v) for i,v in enumerate(x[0])))
split_groups = []
# Collect relevant key value pairs for all columns
relevant_items = None
for keys, indices in partitions:
if relevant_items == None:
relevant_items = [defaultdict(set) for _ in indices]
for i, ind in enumerate(indices):
if ind is not None:
attr = self.data.domain[ind]
for key in relevant_keys:
relevant_items[i][key].add(attr.attributes[key])
#those with different values between rows are not relevant
for d in relevant_items:
for k, s in list(d.items()):
if len(s) > 1:
del d[k]
else:
d[k] = s.pop()
def get_attr(attr_index, i):
if attr_index is None:
attr = Orange.data.ContinuousVariable(next(missing_name_gen),
compute_value=lambda x: None)
attr.attributes.update(relevant_items[i])
return attr
else:
return self.data.domain[attr_index]
for keys, indices in partitions:
attrs = [get_attr(attr_index, i)
for i, attr_index in enumerate(indices)]
for attr in attrs:
attr.attributes.update(zip(separate_keys, keys))
domain = Orange.data.Domain(attrs, [], self.data.domain.metas)
split_groups.append((keys, domain))
self.set_groups(separate_keys, split_groups, relevant_keys,
relevant_items, all_values, uniquepos)
self.partitions = partitions
self.split_groups = split_groups
self.commit()
def set_groups(self, keys, groups, relevant_keys, relevant_items,
all_values, uniquepos):
"""Set the current data groups and update the Group widget
"""
layout = QVBoxLayout()
header_widths = []
header_views = []
palette = self.palette()
all_values = all_values.keys()
def for_print(rd):
attrs = []
for d in rd:
attr = Orange.data.ContinuousVariable(next(inactive_name_gen))
attr.attributes.update(d)
attrs.append(attr)
return Orange.data.Domain(attrs, None)
for separatev, domain in [(None, for_print(relevant_items))] + groups:
label = None
if separatev is not None:
ann_vals = " <b>|</b> ".join(["<b>{0}</b> = {1}".format(key,val) \
for key, val in zip(keys, separatev)])
label = QLabel(ann_vals)
model = QStandardItemModel()
for i, attr in enumerate(domain.attributes):
item = QStandardItem()
if separatev is not None:
isunique = uniquepos[separatev][i]
else:
isunique = all(a[i] for a in uniquepos.values())
if str(attr.name).startswith("!!missing "): # TODO: Change this to not depend on name
header_text = ["{0}={1}".format(key, attr.attributes.get(key, "?")) \
for key in all_values if key not in relevant_items[i]]
header_text = "\n".join(header_text) if header_text else "Empty"
item.setData(header_text, Qt.DisplayRole)
item.setFlags(Qt.NoItemFlags)
item.setData(QColor(Qt.red), Qt.ForegroundRole)
item.setData(palette.color(QPalette.Disabled, QPalette.Window), Qt.BackgroundRole)
item.setData("Missing feature.", Qt.ToolTipRole)
elif str(attr.name).startswith("!!inactive "):
header_text = ["{0}={1}".format(key, attr.attributes.get(key, "?")) \
for key in all_values if key in relevant_items[i]]
header_text = "\n".join(header_text) if header_text else "No descriptor"
item.setData(header_text, Qt.DisplayRole)
item.setData(palette.color(QPalette.Disabled, QPalette.Window), Qt.BackgroundRole)
else:
header_text = ["{0}={1}".format(key, attr.attributes.get(key, "?")) \
for key in all_values if key not in relevant_items[i]]
header_text = "\n".join(header_text) if header_text else "Empty"
item.setData(header_text, Qt.DisplayRole)
item.setData(attr.name, Qt.ToolTipRole)
if not isunique:
item.setData(QColor(Qt.red), Qt.ForegroundRole)
model.setHorizontalHeaderItem(i, item)
attr_count = len(domain.attributes)
view = MyHeaderView(Qt.Horizontal)
view.setResizeMode(QHeaderView.Fixed)
view.setModel(model)
hint = view.sizeHint()
view.setMaximumHeight(hint.height())
widths = [view.sectionSizeHint(i) for i in range(attr_count)]
header_widths.append(widths)
header_views.append(view)
if label:
layout.addWidget(label)
layout.addWidget(view)
layout.addSpacing(8)
# Make all header sections the same width
width_sum = 0
max_header_count = max([h.count() for h in header_views])
for i in range(max_header_count):
max_width = max([w[i] for w in header_widths if i < len(w)] or [0])
for view in header_views:
if i < view.count():
view.resizeSection(i, max_width)
width_sum += max_width + 2
for h in header_views:
h.setMinimumWidth(h.length() + 4)
widget = QWidget()
widget.setLayout(layout)
widget.setSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.Maximum)
layout.activate()
max_width = max(h.length() for h in header_views) + 20
left, _, right, _ = self.getContentsMargins()
widget.setMinimumWidth(width_sum)
widget.setMinimumWidth(max_width + left + right)
self.groups_scroll_area.setWidget(widget)
def compute_distances(self, separate_keys, partitions, data):
"""Compute the distances between genotypes.
"""
if separate_keys and partitions:
self.progressBarInit()
# matrix = Orange.misc.DistMatrix(len(partitions))
matrix = numpy.zeros((len(partitions), len(partitions)))
profiles = [linearize(data, indices) for _, indices in partitions]
dist_func = self.DISTANCE_FUNCTIONS[self.distance_measure][1]
# from Orange.utils import progress_bar_milestones
count = (len(profiles) * len(profiles) - 1) / 2
# milestones = progress_bar_milestones(count)
iter_count = 0
for i in range(len(profiles)):
for j in range(i + 1, len(profiles)):
matrix[i, j] = dist_func(profiles[i], profiles[j])
matrix[j, i] = matrix[i, j]
iter_count += 1
# if iter_count in milestones:
self.progressBarSet(100.0 * iter_count / count)
self.progressBarFinished()
items = [["{0}={1}".format(key, value)
for key, value in zip(separate_keys, values)]
for values, _ in partitions]
items = [" | ".join(item) for item in items]
# matrix.setattr("items", items)
matrix = Orange.misc.DistMatrix(matrix)
else:
matrix = None
self.matrix = matrix
def commit(self):
separate_keys = self.selected_separeate_by_keys()
self.compute_distances(separate_keys,
self.partitions,
self.data)
if self.split_groups:
all_attrs = []
for group, domain in self.split_groups:
attrs = []
group_name = " | ".join("{0}={1}".format(*item) for item in
zip(separate_keys, group))
for attr in domain.attributes:
newattr = clone_attr(attr)
newattr.attributes["<GENOTYPE GROUP>"] = group_name # Need a better way to pass the groups to downstream widgets.
attrs.append(newattr)
all_attrs.extend(attrs)
domain = Orange.data.Domain(all_attrs, self.data.domain.class_vars,
self.data.domain.metas)
data = Orange.data.Table(domain, self.data)
else:
data = None
self.send("Sorted Data", data)
self.send("Distances", self.matrix)
def send_report(self):
self.report_items((
("Separate By", ", ".join(self.selected_separeate_by_keys())),
("Sort By", ", ".join(self.selected_relevant_keys())),
("Distance Measure", self.DISTANCE_FUNCTIONS[self.distance_measure][0])
))
layout = self.groups_scroll_area.widget().layout()
html = "<table>"
for i in range(layout.count()):
item = layout.itemAt(i)
if isinstance(item, QSpacerItem):
html += "<tr><td></td></tr>"
elif isinstance(item, QWidgetItem):
hor = item.widget()
if isinstance(hor, QLabel):
label = hor.text()
html += "<tr><td><b>%s</b></td></tr>" % label
elif isinstance(hor, QHeaderView):
model = hor.model()
content = (model.horizontalHeaderItem(col) for col in range(model.columnCount()))
content = (item.text().replace('\n', "<br/>") for item in content)
html += "<tr>" + ''.join("<td>{}</td>".format(item) for item in content) + "</tr>"
html += "</table>"
self.report_raw("Groups", html)
class OWGenotypeDistances(widget.OWWidget):
name = "Expression Profile Distances"
description = ("Compute distances between expression profiles of "
"different experimental factors.")
icon = "../widgets/icons/GenotypeDistances.svg"
priority = 1050
inputs = [("Data", Orange.data.Table, "set_data")]
outputs = [("Distances", Orange.misc.DistMatrix),
("Sorted Data", Orange.data.Table)]
settingsHandler = SetContextHandler()
separate_keys = settings.ContextSetting({})
relevant_keys = settings.ContextSetting({})
distance_measure = settings.Setting(0)
auto_commit = settings.Setting(False)
DISTANCE_FUNCTIONS = [("Distance from Pearson correlation", dist_pcorr),
("Euclidean distance", dist_eucl),
("Distance from Spearman correlation", dist_spearman)
]
def __init__(self, parent=None):
super().__init__(self, parent)
self.data = None
self.partitions = []
self.matrix = None
self.split_groups = []
self._disable_updates = False
########
# GUI
########
box = gui.widgetBox(self.controlArea, "Input")
self.info_box = gui.widgetLabel(box, "No data on input\n")
box = gui.widgetBox(self.controlArea, "Separate By", addSpace=True)
self.separate_view = QListView(selectionMode=QListView.MultiSelection)
box.layout().addWidget(self.separate_view)
box = gui.widgetBox(self.controlArea, "Sort By", addSpace=True)
self.relevant_view = QListView(selectionMode=QListView.MultiSelection)
box.layout().addWidget(self.relevant_view)
self.distance_view = gui.comboBox(
self.controlArea,
self,
"distance_measure",
box="Distance Measure",
items=[name for name, _ in self.DISTANCE_FUNCTIONS])
gui.rubber(self.controlArea)
gui.auto_commit(self.controlArea, self, "auto_commit", "Commit")
self.groups_box = gui.widgetBox(self.mainArea, "Groups")
self.groups_scroll_area = QScrollArea()
self.groups_box.layout().addWidget(self.groups_scroll_area)
def sizeHint(self):
return QSize(800, 600)
def clear(self):
self.data = None
self.partitions = []
self.split_groups = []
self.matrix = None
def get_suitable_keys(self, data):
"""Return suitable attr label keys from the data where the key has at least
two unique values in the data.
"""
attrs = [attr.attributes.items() for attr in data.domain.attributes]
attrs = reduce(operator.iadd, attrs, [])
# in case someone put non string values in attributes dict
attrs = [(str(key), str(value)) for key, value in attrs]
attrs = set(attrs)
values = defaultdict(set)
for key, value in attrs:
values[key].add(value)
keys = [key for key in values if len(values[key]) > 1]
return keys
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)
select(self.separate_view.model(),
self.separate_view.selectionModel(), separate_keys)
finally:
self._disable_updates = False
def on_separate_key_changed(self, *args):
if not self._disable_updates:
self.separate_keys = self.selected_separeate_by_keys()
self.split_data()
def on_relevant_key_changed(self, *args):
if not self._disable_updates:
self.relevant_keys = self.selected_relevant_keys()
self.split_data()
def selected_separeate_by_keys(self):
"""Return the currently selected separate by keys
"""
rows = self.separate_view.selectionModel().selectedRows()
rows = sorted([idx.row() for idx in rows])
keys = [self.separate_view.model()[row] for row in rows]
return keys
def selected_relevant_keys(self):
"""Return the currently selected relevant keys
"""
rows = self.relevant_view.selectionModel().selectedRows()
rows = sorted([idx.row() for idx in rows])
keys = [self.relevant_view.model()[row] for row in rows]
return keys
def split_data(self):
"""Split the data and update the Groups widget
"""
separate_keys = self.selected_separeate_by_keys()
relevant_keys = self.selected_relevant_keys()
self.warning(0)
if not separate_keys:
self.warning(0, "No separate by column selected.")
partitions, uniquepos = separate_by(self.data,
separate_keys,
consider=relevant_keys)
partitions = partitions.items()
all_values = defaultdict(set)
for a in [at.attributes for at in self.data.domain.attributes]:
for k, v in a.items():
all_values[k].add(v)
# sort groups
pkeys = [key for key, _ in partitions]
types = [
data_type([a[i] for a in pkeys]) for i in range(len(pkeys[0]))
]
partitions = sorted(partitions,
key=lambda x: tuple(types[i](v)
for i, v in enumerate(x[0])))
split_groups = []
# Collect relevant key value pairs for all columns
relevant_items = None
for keys, indices in partitions:
if relevant_items == None:
relevant_items = [defaultdict(set) for _ in indices]
for i, ind in enumerate(indices):
if ind is not None:
attr = self.data.domain[ind]
for key in relevant_keys:
relevant_items[i][key].add(attr.attributes[key])
#those with different values between rows are not relevant
for d in relevant_items:
for k, s in list(d.items()):
if len(s) > 1:
del d[k]
else:
d[k] = s.pop()
def get_attr(attr_index, i):
if attr_index is None:
attr = Orange.data.ContinuousVariable(
next(missing_name_gen), compute_value=lambda x: None)
attr.attributes.update(relevant_items[i])
return attr
else:
return self.data.domain[attr_index]
for keys, indices in partitions:
attrs = [
get_attr(attr_index, i) for i, attr_index in enumerate(indices)
]
for attr in attrs:
attr.attributes.update(zip(separate_keys, keys))
domain = Orange.data.Domain(attrs, [], self.data.domain.metas)
split_groups.append((keys, domain))
self.set_groups(separate_keys, split_groups, relevant_keys,
relevant_items, all_values, uniquepos)
self.partitions = partitions
self.split_groups = split_groups
self.commit()
def set_groups(self, keys, groups, relevant_keys, relevant_items,
all_values, uniquepos):
"""Set the current data groups and update the Group widget
"""
layout = QVBoxLayout()
header_widths = []
header_views = []
palette = self.palette()
all_values = all_values.keys()
def for_print(rd):
attrs = []
for d in rd:
attr = Orange.data.ContinuousVariable(next(inactive_name_gen))
attr.attributes.update(d)
attrs.append(attr)
return Orange.data.Domain(attrs, None)
for separatev, domain in [(None, for_print(relevant_items))] + groups:
label = None
if separatev is not None:
ann_vals = " <b>|</b> ".join(["<b>{0}</b> = {1}".format(key,val) \
for key, val in zip(keys, separatev)])
label = QLabel(ann_vals)
model = QStandardItemModel()
for i, attr in enumerate(domain.attributes):
item = QStandardItem()
if separatev is not None:
isunique = uniquepos[separatev][i]
else:
isunique = all(a[i] for a in uniquepos.values())
if str(attr.name).startswith(
"!!missing "
): # TODO: Change this to not depend on name
header_text = ["{0}={1}".format(key, attr.attributes.get(key, "?")) \
for key in all_values if key not in relevant_items[i]]
header_text = "\n".join(
header_text) if header_text else "Empty"
item.setData(header_text, Qt.DisplayRole)
item.setFlags(Qt.NoItemFlags)
item.setData(QColor(Qt.red), Qt.ForegroundRole)
item.setData(
palette.color(QPalette.Disabled, QPalette.Window),
Qt.BackgroundRole)
item.setData("Missing feature.", Qt.ToolTipRole)
elif str(attr.name).startswith("!!inactive "):
header_text = ["{0}={1}".format(key, attr.attributes.get(key, "?")) \
for key in all_values if key in relevant_items[i]]
header_text = "\n".join(
header_text) if header_text else "No descriptor"
item.setData(header_text, Qt.DisplayRole)
item.setData(
palette.color(QPalette.Disabled, QPalette.Window),
Qt.BackgroundRole)
else:
header_text = ["{0}={1}".format(key, attr.attributes.get(key, "?")) \
for key in all_values if key not in relevant_items[i]]
header_text = "\n".join(
header_text) if header_text else "Empty"
item.setData(header_text, Qt.DisplayRole)
item.setData(attr.name, Qt.ToolTipRole)
if not isunique:
item.setData(QColor(Qt.red), Qt.ForegroundRole)
model.setHorizontalHeaderItem(i, item)
attr_count = len(domain.attributes)
view = MyHeaderView(Qt.Horizontal)
view.setResizeMode(QHeaderView.Fixed)
view.setModel(model)
hint = view.sizeHint()
view.setMaximumHeight(hint.height())
widths = [view.sectionSizeHint(i) for i in range(attr_count)]
header_widths.append(widths)
header_views.append(view)
if label:
layout.addWidget(label)
layout.addWidget(view)
layout.addSpacing(8)
# Make all header sections the same width
width_sum = 0
max_header_count = max([h.count() for h in header_views])
for i in range(max_header_count):
max_width = max([w[i] for w in header_widths if i < len(w)] or [0])
for view in header_views:
if i < view.count():
view.resizeSection(i, max_width)
width_sum += max_width + 2
for h in header_views:
h.setMinimumWidth(h.length() + 4)
widget = QWidget()
widget.setLayout(layout)
widget.setSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.Maximum)
layout.activate()
max_width = max(h.length() for h in header_views) + 20
left, _, right, _ = self.getContentsMargins()
widget.setMinimumWidth(width_sum)
widget.setMinimumWidth(max_width + left + right)
self.groups_scroll_area.setWidget(widget)
def compute_distances(self, separate_keys, partitions, data):
"""Compute the distances between genotypes.
"""
if separate_keys and partitions:
self.progressBarInit()
# matrix = Orange.misc.DistMatrix(len(partitions))
matrix = numpy.zeros((len(partitions), len(partitions)))
profiles = [linearize(data, indices) for _, indices in partitions]
dist_func = self.DISTANCE_FUNCTIONS[self.distance_measure][1]
# from Orange.utils import progress_bar_milestones
count = (len(profiles) * len(profiles) - 1) / 2
# milestones = progress_bar_milestones(count)
iter_count = 0
for i in range(len(profiles)):
for j in range(i + 1, len(profiles)):
matrix[i, j] = dist_func(profiles[i], profiles[j])
matrix[j, i] = matrix[i, j]
iter_count += 1
# if iter_count in milestones:
self.progressBarSet(100.0 * iter_count / count)
self.progressBarFinished()
items = [[
"{0}={1}".format(key, value)
for key, value in zip(separate_keys, values)
] for values, _ in partitions]
items = [" | ".join(item) for item in items]
# matrix.setattr("items", items)
matrix = Orange.misc.DistMatrix(matrix)
else:
matrix = None
self.matrix = matrix
def commit(self):
separate_keys = self.selected_separeate_by_keys()
self.compute_distances(separate_keys, self.partitions, self.data)
if self.split_groups:
all_attrs = []
for group, domain in self.split_groups:
attrs = []
group_name = " | ".join("{0}={1}".format(*item)
for item in zip(separate_keys, group))
for attr in domain.attributes:
newattr = clone_attr(attr)
newattr.attributes[
"<GENOTYPE GROUP>"] = group_name # Need a better way to pass the groups to downstream widgets.
attrs.append(newattr)
all_attrs.extend(attrs)
domain = Orange.data.Domain(all_attrs, self.data.domain.class_vars,
self.data.domain.metas)
data = Orange.data.Table(domain, self.data)
else:
data = None
self.send("Sorted Data", data)
self.send("Distances", self.matrix)
def send_report(self):
self.report_items(
(("Separate By", ", ".join(self.selected_separeate_by_keys())),
("Sort By", ", ".join(self.selected_relevant_keys())),
("Distance Measure",
self.DISTANCE_FUNCTIONS[self.distance_measure][0])))
layout = self.groups_scroll_area.widget().layout()
html = "<table>"
for i in range(layout.count()):
item = layout.itemAt(i)
if isinstance(item, QSpacerItem):
html += "<tr><td></td></tr>"
elif isinstance(item, QWidgetItem):
hor = item.widget()
if isinstance(hor, QLabel):
label = hor.text()
html += "<tr><td><b>%s</b></td></tr>" % label
elif isinstance(hor, QHeaderView):
model = hor.model()
content = (model.horizontalHeaderItem(col)
for col in range(model.columnCount()))
content = (item.text().replace('\n', "<br/>")
for item in content)
html += "<tr>" + ''.join("<td>{}</td>".format(item)
for item in content) + "</tr>"
html += "</table>"
self.report_raw("Groups", html)
class SortedListWidget(QWidget):
sortingOrderChanged = Signal()
class _MyItemDelegate(QStyledItemDelegate):
def __init__(self, sortingModel, parent):
QStyledItemDelegate.__init__(self, parent)
self.sortingModel = sortingModel
def sizeHint(self, option, index):
size = QStyledItemDelegate.sizeHint(self, option, index)
return QSize(size.width(), size.height() + 4)
def createEditor(self, parent, option, index):
cb = QComboBox(parent)
cb.setModel(self.sortingModel)
cb.showPopup()
return cb
def setEditorData(self, editor, index):
pass # TODO: sensible default
def setModelData(self, editor, model, index):
text = editor.currentText()
model.setData(index, text)
def __init__(self, *args):
QWidget.__init__(self, *args)
self.setContentsMargins(0, 0, 0, 0)
gridLayout = QGridLayout()
gridLayout.setContentsMargins(0, 0, 0, 0)
gridLayout.setSpacing(1)
model = QStandardItemModel(self)
model.rowsInserted.connect(self.__changed)
model.rowsRemoved.connect(self.__changed)
model.dataChanged.connect(self.__changed)
self._listView = QListView(self)
self._listView.setModel(model)
# self._listView.setDragEnabled(True)
self._listView.setDropIndicatorShown(True)
self._listView.setDragDropMode(QListView.InternalMove)
self._listView.viewport().setAcceptDrops(True)
self._listView.setMinimumHeight(100)
gridLayout.addWidget(self._listView, 0, 0, 2, 2)
vButtonLayout = QVBoxLayout()
self._upAction = QAction("\u2191", self, toolTip="Move up")
self._upButton = QToolButton(self)
self._upButton.setDefaultAction(self._upAction)
self._upButton.setSizePolicy(QSizePolicy.Fixed,
QSizePolicy.MinimumExpanding)
self._downAction = QAction("\u2193", self, toolTip="Move down")
self._downButton = QToolButton(self)
self._downButton.setDefaultAction(self._downAction)
self._downButton.setSizePolicy(QSizePolicy.Fixed,
QSizePolicy.MinimumExpanding)
vButtonLayout.addWidget(self._upButton)
vButtonLayout.addWidget(self._downButton)
gridLayout.addLayout(vButtonLayout, 0, 2, 2, 1)
hButtonLayout = QHBoxLayout()
self._addAction = QAction("+", self)
self._addButton = QToolButton(self)
self._addButton.setDefaultAction(self._addAction)
self._removeAction = QAction("-", self)
self._removeButton = QToolButton(self)
self._removeButton.setDefaultAction(self._removeAction)
hButtonLayout.addWidget(self._addButton)
hButtonLayout.addWidget(self._removeButton)
hButtonLayout.addStretch(10)
gridLayout.addLayout(hButtonLayout, 2, 0, 1, 2)
self.setLayout(gridLayout)
self._addAction.triggered.connect(self._onAddAction)
self._removeAction.triggered.connect(self._onRemoveAction)
self._upAction.triggered.connect(self._onUpAction)
self._downAction.triggered.connect(self._onDownAction)
def sizeHint(self):
size = QWidget.sizeHint(self)
return QSize(size.width(), 100)
def _onAddAction(self):
item = QStandardItem("")
item.setFlags(item.flags() ^ Qt.ItemIsDropEnabled)
self._listView.model().appendRow(item)
self._listView.setCurrentIndex(item.index())
self._listView.edit(item.index())
def _onRemoveAction(self):
current = self._listView.currentIndex()
self._listView.model().takeRow(current.row())
def _onUpAction(self):
row = self._listView.currentIndex().row()
model = self._listView.model()
if row > 0:
items = model.takeRow(row)
model.insertRow(row - 1, items)
self._listView.setCurrentIndex(model.index(row - 1, 0))
def _onDownAction(self):
row = self._listView.currentIndex().row()
model = self._listView.model()
if row < model.rowCount() and row >= 0:
items = model.takeRow(row)
if row == model.rowCount():
model.appendRow(items)
else:
model.insertRow(row + 1, items)
self._listView.setCurrentIndex(model.index(row + 1, 0))
def setModel(self, model):
""" Set a model to select items from
"""
self._model = model
self._listView.setItemDelegate(self._MyItemDelegate(self._model, self))
def addItem(self, *args):
""" Add a new entry in the list
"""
item = QStandardItem(*args)
item.setFlags(item.flags() ^ Qt.ItemIsDropEnabled)
self._listView.model().appendRow(item)
def setItems(self, items):
self._listView.model().clear()
for item in items:
self.addItem(item)
def items(self):
order = []
for row in range(self._listView.model().rowCount()):
order.append(str(self._listView.model().item(row, 0).text()))
return order
def __changed(self):
self.sortingOrderChanged.emit()
sortingOrder = property(items, setItems)