def select(self, selection, flags):
if isinstance(selection, QModelIndex):
selection = QItemSelection(selection, selection)
model = self.model()
indexes = selection.indexes()
sel_inds = {ind.row() for ind in indexes} | \
{ind.column() for ind in indexes}
if flags == QItemSelectionModel.ClearAndSelect:
selected = set()
else:
selected = {ind.row() for ind in self.selectedIndexes()}
if flags & QItemSelectionModel.Select:
selected |= sel_inds
elif flags & QItemSelectionModel.Deselect:
selected -= sel_inds
new_selection = QItemSelection()
regions = list(ranges(sorted(selected)))
for r_start, r_end in regions:
for c_start, c_end in regions:
top_left = model.index(r_start, c_start)
bottom_right = model.index(r_end - 1, c_end - 1)
new_selection.select(top_left, bottom_right)
QItemSelectionModel.select(self, new_selection,
QItemSelectionModel.ClearAndSelect)
def setSelectedItems(self, items):
#block = self.blockSignals(True)
sel = QItemSelection()
for item in items:
sel.merge(QItemSelection(item.index(), item.index(1)), QItemSelectionModel.SelectCurrent)
if set(sel) != set(self.selectionModel().selection()):
self.selectionModel().clear()
self.selectionModel().select(sel, QItemSelectionModel.Select)
def redoSelection(self, selectedCoordinates):
selection = QItemSelection()
for i, c in enumerate(self.coordinates):
if c in selectedCoordinates:
selection.merge(
QItemSelection(self.createIndex(i, 0),
self.createIndex(i, 1)),
QItemSelectionModel.Select)
self.app.aw.ui.tableView.selectionModel().select(
selection, QItemSelectionModel.Select)
def set_selection(self):
if len(self.selected_rows) and len(self.selected_cols):
view = self.tabs.currentWidget()
selection = QItemSelection()
temp_selection = QItemSelection()
for row in self.selected_rows:
for col in self.selected_cols:
index = view.model().index(row, col)
temp_selection.select(index, index)
selection.merge(temp_selection, QItemSelectionModel.Select)
view.selectionModel().select(selection,
QItemSelectionModel.ClearAndSelect)
def on_actionInvert_selection_triggered(self):
widget = self.activ_selection
model = widget.model()
selection = widget.selectionModel()
root = model.root
selection.select(QItemSelection(model.index(0,0,root), model.index(model.rowCount(root),1,root)), QItemSelectionModel.Toggle)
widget.viewport().update()
def select(self,
uuids,
lbox: QTreeView = None,
scroll_to_show_single=True):
lbox = self.current_set_listbox if lbox is None else lbox
lbox.clearSelection()
if not uuids:
return
# FUTURE: this is quick and dirty
rowdict = dict(
(u, i) for i, u in enumerate(self.doc.current_layer_uuid_order))
items = QItemSelection()
q = None
for uuid in uuids:
row = rowdict.get(uuid, None)
if row is None:
LOG.error(
'UUID {} cannot be selected in list view'.format(uuid))
continue
q = self.createIndex(row, 0)
items.select(q, q)
lbox.selectionModel().select(items, QItemSelectionModel.Select)
# lbox.setCurrentIndex(q)
if scroll_to_show_single and len(uuids) == 1 and q is not None:
lbox.scrollTo(q)
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
uic.loadUi("mainwindow.ui", self)
model = QStandardItemModel(7, 4, self)
for row in range(7):
for column in range(4):
item = QStandardItem(QString("%1").arg(row * 4 + column))
model.setItem(row, column, item)
self.tableView = QTableView()
self.tableView.setModel(model)
self.setCentralWidget(self.tableView)
# 获取视图的项目选择模型
selectionModel = self.tableView.selectionModel()
# 定义左上角和右下角的索引，然后使用这两个索引创建选择
topLeft = model.index(1, 1, QModelIndex())
bottomRight = model.index(5, 2, QModelIndex())
selection = QItemSelection(topLeft, bottomRight)
# 使用指定的选择模式来选择项目
selectionModel.select(selection, QItemSelectionModel.Select)
self.mainToolBar.addAction(_fromUtf8("当前项目"), self.getCurrentItemData)
self.mainToolBar.addAction(_fromUtf8("切换选择"), self.toggleSelection)
def toggleSelection(self):
topLeft = self.tableView.model().index(0, 0, QModelIndex())
bottomRight = self.tableView.model().index(
self.tableView.model().rowCount(QModelIndex()) - 1,
self.tableView.model().columnCount(QModelIndex()) - 1, QModelIndex())
curSelection = QItemSelection(topLeft, bottomRight)
self.tableView.selectionModel().select(curSelection, QItemSelectionModel.Toggle)
def cell_clicked(self, model_index):
i, j = model_index.row(), model_index.column()
if not i or not j:
return
n = self.tablemodel.rowCount()
index = self.tablemodel.index
selection = None
if i == j == 1 or i == j == n - 1:
selection = QItemSelection(index(2, 2), index(n - 1, n - 1))
elif i in (1, n - 1):
selection = QItemSelection(index(2, j), index(n - 1, j))
elif j in (1, n - 1):
selection = QItemSelection(index(i, 2), index(i, n - 1))
if selection is not None:
self.tableview.selectionModel().select(
selection, QItemSelectionModel.ClearAndSelect)
def _set_selection(self):
selection = QItemSelection()
index = self.tableview.model().index
for row, col in self.selection:
sel = index(row + 2, col + 2)
selection.select(sel, sel)
self.tableview.selectionModel().select(
selection, QItemSelectionModel.ClearAndSelect)
def _restoreSelection(self):
newSelection = QItemSelection()
for index in self.model.selected_indexes:
newSelection.select(self.createIndex(index, 0), self.createIndex(index, 0))
self.view.selectionModel().select(newSelection, QItemSelectionModel.ClearAndSelect)
if len(newSelection.indexes()):
currentIndex = newSelection.indexes()[0]
self.view.selectionModel().setCurrentIndex(currentIndex, QItemSelectionModel.Current)
self.view.scrollTo(currentIndex)
def select_correct(self):
selection = QItemSelection()
n = self.tablemodel.rowCount()
for i in range(2, n):
index = self.tablemodel.index(i, i)
selection.select(index, index)
self.tableview.selectionModel().select(
selection, QItemSelectionModel.ClearAndSelect)
def on_actionSelect_odd_images_triggered(self):
widget = self.activ_selection
model = widget.model()
selection = widget.selectionModel()
sel = QItemSelection()
for i in range(0,len(model),2):
sel.select(model.index(i,0), model.index(i,1))
selection.select(sel, QItemSelectionModel.ClearAndSelect)
widget.viewport().update()
def updateCoordinate(self,row,c0,c1):
# respect the limits
# NOSORT
if False and ((row > 0 and c0 <= self.coordinates[row-1][0]) or ((row < len(self.coordinates) - 1 and c0 >= self.coordinates[row+1][0]))):
return
else:
selectedCoordinates = self.getSelectedCoordinates()
self.beginResetModel()
self.coordinates[row][0] = c0
self.coordinates[row][1] = int(c1)
self.endResetModel()
self.computePolyfit()
selection = QItemSelection()
for i,c in enumerate(self.coordinates):
if c in selectedCoordinates:
selection.merge(QItemSelection(self.createIndex(i,0),self.createIndex(i,1)),QItemSelectionModel.Select)
self.app.aw.ui.tableView.selectionModel().select(selection,QItemSelectionModel.Select)
self.app.contentModified()
def select_correct(self):
"""Select the diagonal elements of the matrix"""
selection = QItemSelection()
n = self.tablemodel.rowCount()
for i in range(2, n):
index = self.tablemodel.index(i, i)
selection.select(index, index)
self.tableview.selectionModel().select(
selection, QItemSelectionModel.ClearAndSelect)
def _learner_changed(self):
# The selected learner has changed
indices = self.tableview.selectedIndexes()
self._update()
selection = QItemSelection()
for sel in indices:
selection.select(sel, sel)
self.tableview.selectionModel().select(
selection, QItemSelectionModel.ClearAndSelect)
self.commit()
def _updateViewSelection(self):
# Takes the selection on the model's side and update the view with it.
newSelection = QItemSelection()
columnCount = self.columnCount(QModelIndex())
for index in self.model.selected_indexes:
newSelection.select(self.createIndex(index, 0), self.createIndex(index, columnCount-1))
self.view.selectionModel().select(newSelection, QItemSelectionModel.ClearAndSelect)
if len(newSelection.indexes()):
currentIndex = newSelection.indexes()[0]
self.view.selectionModel().setCurrentIndex(currentIndex, QItemSelectionModel.Current)
self.view.scrollTo(currentIndex)
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)
def select_wrong(self):
"""Select the off-diagonal elements of the matrix"""
selection = QItemSelection()
n = self.tablemodel.rowCount()
for i in range(2, n):
for j in range(i + 1, n):
index = self.tablemodel.index(i, j)
selection.select(index, index)
index = self.tablemodel.index(j, i)
selection.select(index, index)
self.tableview.selectionModel().select(
selection, QItemSelectionModel.ClearAndSelect)
def select_wrong(self):
selection = QItemSelection()
n = self.tablemodel.rowCount()
for i in range(2, n):
for j in range(i + 1, n):
index = self.tablemodel.index(i, j)
selection.select(index, index)
index = self.tablemodel.index(j, i)
selection.select(index, index)
self.tableview.selectionModel().select(
selection, QItemSelectionModel.ClearAndSelect)
def selectionChanged(self):
X = self.X
mapping = self.onehot_mapping
instances = set()
where = np.where
def whole_subtree(node):
yield node
for i in range(node.childCount()):
yield from whole_subtree(node.child(i))
def itemset(node):
while node:
yield node.data(0, self.ITEM_DATA_ROLE)
node = node.parent()
def selection_ranges(node):
n_children = node.childCount()
if n_children:
yield (self.tree.indexFromItem(node.child(0)),
self.tree.indexFromItem(node.child(n_children - 1)))
for i in range(n_children):
yield from selection_ranges(node.child(i))
nSelectedItemsets = 0
item_selection = QItemSelection()
for node in self.tree.selectedItems():
nodes = (node, ) if node.isExpanded() else whole_subtree(node)
if not node.isExpanded():
for srange in selection_ranges(node):
item_selection.select(*srange)
for node in nodes:
nSelectedItemsets += 1
cols, vals = zip(*(mapping[i] for i in itemset(node)))
if issparse(X):
rows = (len(cols) == np.bincount(
(X[:, cols] != 0).indices,
minlength=X.shape[0])).nonzero()[0]
else:
rows = where((X[:, cols] == vals).all(axis=1))[0]
instances.update(rows)
self.tree.itemSelectionChanged.disconnect(self.selectionChanged)
self.tree.selectionModel().select(
item_selection,
QItemSelectionModel.Select | QItemSelectionModel.Rows)
self.tree.itemSelectionChanged.connect(self.selectionChanged)
self.nSelectedExamples = len(instances)
self.nSelectedItemsets = nSelectedItemsets
self.output = self.data[sorted(instances)] or None
self.commit()
def selectLargePathSegments(self):
selection = QItemSelection()
for path in self.largePathSegmentsModel.selectedGroundings():
for i in range(self.pathSegmentsModel.rowCount()):
entry = self.pathSegmentsModel.get(i)
if path.contains(entry.grounding.range):
idx = self.pathSegmentsModel.index(i, 0)
selection.select(idx, idx)
#self.pathSegmentsTable.selectRow(i)
#break
print 'adding path', selection
self.pathSegmentsTable.selectionModel().select(selection,
QItemSelectionModel.Rows | QItemSelectionModel.SelectCurrent)
def selectFiltered(self):
if not self.data:
return
itemSelection = QItemSelection()
index = self.treeWidget.model().sourceModel().index
mapFromSource = self.treeWidget.model().mapFromSource
for i, row in enumerate(self.cells):
if not self.rowFiltered(i):
itemSelection.select(mapFromSource(index(i, 0)),
mapFromSource(index(i, 0)))
self.treeWidget.selectionModel().select(
itemSelection,
QItemSelectionModel.Select | QItemSelectionModel.Rows)
def focusInEvent(self, e):
currentIndex = self.model().index(
self.selectionModel().currentIndex().row(), 0)
currentIndex2 = self.model().index(currentIndex.row(),
self.model().columnCount() - 1)
#If we never entered the widget
if currentIndex.row() < 0:
currentIndex = self.model().index(0, 0)
currentIndex2 = self.model().index(0,
self.model().columnCount() - 1)
self.selectionModel().setCurrentIndex(currentIndex,
QItemSelectionModel.Rows)
self.selectionModel().select(
QItemSelection(currentIndex, currentIndex2),
QItemSelectionModel.Select)
def _itemWidgetSelectionChanged(self, index):
""" Handles changed items of the select item widget and
selects corresponding privilege definition in the table. """
item = self._repositoryModel.nodeFromIndex(index)
rows = self._model.determineRows(item)
if len(rows) > 0:
topLeft = self._model.index(rows[0], 0)
bottomRight = self._model.index(rows[len(rows )- 1], 3)
selection = QItemSelection(topLeft, bottomRight)
self._privilegeWidget.selectionModel().clearSelection()
self._privilegeWidget.selectionModel().setCurrentIndex(topLeft, QItemSelectionModel.Select)
self._privilegeWidget.selectionModel().select(selection, QItemSelectionModel.Select)
else:
self._privilegeWidget.selectionModel().clearSelection()
def select_rows(view, row_indices, command=QItemSelectionModel.ClearAndSelect):
"""
Select rows in view.
:param PyQt4.QtGui.QAbstractItemView view:
:param row_indices: Integer indices of rows to select.
:param command: QItemSelectionModel.SelectionFlags
"""
selmodel = view.selectionModel()
model = view.model()
selection = QItemSelection()
for row in row_indices:
index = model.index(row, 0)
selection.select(index, index)
selmodel.select(selection, command | QItemSelectionModel.Rows)
def keyPressEvent(self, event):
if event.key() == Qt.Key_Delete:
index = self.selectedIndexes()[0]
row = index.model().itemFromIndex(index).row()
childIndex=self.model().index(row+1,0)
childIndex2=self.model().index(row+1,self.model().columnCount()-1)
self.selectionModel().clearSelection()
self.selectionModel().select(QItemSelection(childIndex,childIndex2), QItemSelectionModel.Select)
self.selectionModel().setCurrentIndex(childIndex,QItemSelectionModel.Rows)
if self.playingId == row:
self.runAction.emit('stop')
self.model().removeRow(row)
elif event.key() == Qt.Key_Return:
self.runAction.emit('play')
QTableView.keyPressEvent(self, event)
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
uic.loadUi("mainwindow.ui", self)
model = QStandardItemModel(7, 4, self)
for row in range(7):
for column in range(4):
item = QStandardItem(QString("%1").arg(row * 4 + column))
model.setItem(row, column, item)
self.tableView = QTableView()
self.tableView.setModel(model)
self.setCentralWidget(self.tableView)
# 获取视图的项目选择模型
selectionModel = self.tableView.selectionModel()
# 定义左上角和右下角的索引，然后使用这两个索引创建选择
topLeft = model.index(1, 1, QModelIndex())
bottomRight = model.index(5, 2, QModelIndex())
selection = QItemSelection(topLeft, bottomRight)
# 使用指定的选择模式来选择项目
selectionModel.select(selection, QItemSelectionModel.Select)
self.mainToolBar.addAction(_fromUtf8("当前项目"), self.getCurrentItemData)
self.mainToolBar.addAction(_fromUtf8("切换选择"), self.toggleSelection)
self.connect(selectionModel,SIGNAL("selectionChanged(QItemSelection,QItemSelection)"),
self.updateSelection)
self.connect(selectionModel, SIGNAL("currentChanged(QModelIndex,QModelIndex)"),
self.changeCurrent)
# 多个视图共享选择
self.tableView2 = QTableView()
self.tableView2.setWindowTitle("tableView2")
self.tableView2.resize(400, 300)
self.tableView2.setModel(model)
self.tableView2.setSelectionModel(selectionModel)
self.tableView2.show()
# 使用自定义委托
delegate = SpinBoxDelegate(self)
self.tableView.setItemDelegate(delegate)
def set_selection(self):
if len(self.selected_rows) and len(self.selected_cols):
view = self.tabs.currentWidget()
model = view.model()
if model.rowCount() <= self.selected_rows[-1] or \
model.columnCount() <= self.selected_cols[-1]:
return
selection = QItemSelection()
rowranges = list(ranges(self.selected_rows))
colranges = list(ranges(self.selected_cols))
for rowstart, rowend in rowranges:
for colstart, colend in colranges:
selection.append(
QtGui.QItemSelectionRange(
view.model().index(rowstart, colstart),
view.model().index(rowend - 1, colend - 1)))
view.selectionModel().select(selection,
QItemSelectionModel.ClearAndSelect)
def word_clicked(self, word):
"""Called from JavaScript"""
if not word:
self.selected_words.clear()
return ''
selection = QItemSelection()
for i, row in enumerate(self.tablemodel):
for j, val in enumerate(row):
if val == word:
index = self.tablemodel.index(i, j)
selection.select(index, index)
if word not in self.selected_words:
self.selected_words.add(word)
self.tableview.selectionModel().select(
selection,
QItemSelectionModel.Select | QItemSelectionModel.Rows)
return 'selected'
else:
self.selected_words.remove(word)
self.tableview.selectionModel().select(
selection,
QItemSelectionModel.Deselect | QItemSelectionModel.Rows)
return ''
