def _on_update_rules(self, new_rules):
active_rule = self._model.active_rule
item_to_select = None
self._rules_list.clear()
self._rules_list.blockSignals(True)
try:
for rule in new_rules:
item = QTreeWidgetItem(self._rules_list, [rule.name])
item.rule = rule
self._rules_list.addTopLevelItem(item)
self._rules_list.setCurrentItem(item)
if active_rule and active_rule == rule.name:
item_to_select = item
self._rules_list.setItemSelected(item, False)
if item_to_select:
self._rules_list.setItemSelected(item_to_select, True)
except Exception as exc:
LOGGER.error('{} | {}'.format(exc, traceback.format_exc()))
finally:
self._rules_list.blockSignals(False)
self._on_update_active_rule(active_rule=self._model.active_rule)
def buildtree(parent, it):
# Check for children
try:
for child in parent.children:
itchild = QTreeWidgetItem(it, [child.label])
itchild.source = child
buildtree(child, itchild) # Add child's children
it.addChild(itchild)
except AttributeError:
# Probably no children
return
def buildtree(parent, it):
# Check for children
try:
for child in parent.children:
itchild = QTreeWidgetItem(it, [child.label])
itchild.source = child
buildtree(child, itchild) # Add child's children
it.addChild(itchild)
except AttributeError:
# Probably no children
return
def __init__(self, guide=None):
super(TreeWidget, self).__init__()
self.setColumnCount(1)
self.setSelectionMode(self.ExtendedSelection)
self.setDragDropMode(self.DragDrop)
self.setDefaultDropAction(Qt.MoveAction)
self.setHeaderHidden(True)
for i in range(3):
item = QTreeWidgetItem(self, ["LAYER LAYER {}".format(i)])
for i in range(3):
QTreeWidgetItem(self, ["SYSTEM SYSTEM {}".format(i)])
self.itemSelectionChanged.connect(self.allowDragNDrop)
def textAlignment(self, column):
"""
Overrides base LibraryItem textAlignment function
:param column: int
"""
return QTreeWidgetItem.textAlignment(self, column)
def add_conf_group(self, conf_group_widget):
row = conf_group_widget.childCount()
conformer_item = QTreeWidgetItem(conf_group_widget)
conf_group_widget.insertChild(row, conformer_item)
nrg_combobox = FilereaderComboBox(self.session, otherItems=['energy'])
nrg_combobox.currentIndexChanged.connect(
lambda *args: self.changes.emit())
freq_combobox = FilereaderComboBox(self.session,
otherItems=['frequency'])
freq_combobox.currentIndexChanged.connect(
lambda *args: self.changes.emit())
trash_button = QPushButton()
trash_button.setFlat(True)
trash_button.clicked.connect(
lambda *args, combobox=nrg_combobox: combobox.deleteLater())
trash_button.clicked.connect(
lambda *args, combobox=freq_combobox: combobox.deleteLater())
trash_button.clicked.connect(lambda *args, child=conformer_item:
conf_group_widget.removeChild(child))
trash_button.clicked.connect(lambda *args: self.changes.emit())
trash_button.setIcon(
QIcon(self.style().standardIcon(QStyle.SP_DialogCancelButton)))
self.tree.setItemWidget(conformer_item, 0, nrg_combobox)
self.tree.setItemWidget(conformer_item, 1, freq_combobox)
self.tree.setItemWidget(conformer_item, 2, trash_button)
self.changes.emit()
def _add_row(self, item):
values = [getattr(item, c) for c in self._columns]
values = [str(v) if v not in (None, 0) else '' for v in values]
new_item = QTreeWidgetItem(values)
new_item.setFlags(new_item.flags() | Qt.ItemIsEditable)
new_item.setData(0, Qt.UserRole, item)
self._tree.addTopLevelItem(new_item)
def textAlignment(self, column):
"""
Returns the text alinment for the label in the given column
:param column: int
:return: QAlignmentFlag
"""
if self.viewer().is_icon_view():
return Qt.AlignCenter
else:
return QTreeWidgetItem.textAlignment(self, column)
def addSource(self, source):
self.sources.append(source)
it = QTreeWidgetItem(self.main.treeView, [source.label])
it.setIcon(0, self.groupIcon)
it.source = source
self.main.treeView.addTopLevelItem(it)
def buildtree(parent, it):
# Check for children
try:
for child in parent.children:
itchild = QTreeWidgetItem(it, [child.label])
itchild.source = child
buildtree(child, itchild) # Add child's children
it.addChild(itchild)
except AttributeError:
# Probably no children
return
buildtree(source, it)
def addSource(self, source):
self.sources.append(source)
it = QTreeWidgetItem(self.main.treeView, [source.label])
it.setIcon(0, self.groupIcon)
it.source = source
self.main.treeView.addTopLevelItem(it)
def buildtree(parent, it):
# Check for children
try:
for child in parent.children:
itchild = QTreeWidgetItem(it, [child.label])
itchild.source = child
buildtree(child, itchild) # Add child's children
it.addChild(itchild)
except AttributeError:
# Probably no children
return
buildtree(source, it)
def font(self, column):
"""
Returns the font for the given column
:param column: int
:return: QFont
"""
default = QTreeWidgetItem.font(self, column)
font = self._fonts.get(column, default)
font.setPixelSize(self.font_size() * self.dpi())
return font
def _load_data(self):
self._tree_hierarchy.clear()
if not self._file_path or not os.path.isfile(self._file_path):
return
with open(self._file_path, 'r') as fh:
skeleton_data = json.load(fh)
if not skeleton_data:
return
created_nodes = dict()
for node_data in skeleton_data:
node_index = node_data.get('index', 0)
node_parent_index = node_data.get('parent_index', -1)
node_name = node_data.get('name', 'new_node')
new_node = QTreeWidgetItem()
new_node.setText(0, node_name)
created_nodes[node_index] = {
'node': new_node,
'parent_index': node_parent_index
}
sorted(created_nodes.items(), key=lambda x: int(x[0]))
for node_index, node_data in created_nodes.items():
node_data = created_nodes.get(node_index, None)
if not node_data:
continue
node_item = node_data.get('node')
parent_index = node_data['parent_index']
if parent_index <= -1:
self._tree_hierarchy.addTopLevelItem(node_item)
continue
parent_node_data = created_nodes.get(parent_index, None)
if not parent_node_data:
continue
parent_node_item = parent_node_data.get('node')
parent_node_item.addChild(node_item)
self._tree_hierarchy.expandAll()
def icon(self, column):
"""
Overrides base QTreeWidgetItem icon function
Overrides icon to add support for thumbnail icon
:param column: int
:return: QIcon
"""
item_icon = QTreeWidgetItem.icon(self, column)
if not item_icon and column == self.DEFAULT_THUMBNAIL_COLUMN:
item_icon = self.thumbnail_icon()
return item_icon
def __init__(self, name, session, nrg_fr, thermo_co, size, *args,
**kwargs):
super().__init__(*args, **kwargs)
self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
self.session = session
self.nrg_fr = nrg_fr
self.thermo_co = thermo_co
layout = QGridLayout(self)
layout.setContentsMargins(0, 0, 0, 0)
layout.setRowStretch(0, 1)
frame = QGroupBox(name)
frame.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
frame_layout = QGridLayout(frame)
frame_layout.setContentsMargins(0, 0, 0, 0)
frame_layout.setRowStretch(0, 1)
self.tree = QTreeWidget()
self.tree.setColumnCount(3)
self.tree.setHeaderLabels(["energy", "frequencies", "remove"])
self.tree.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
self.tree.setColumnWidth(0, size[0])
self.tree.setColumnWidth(1, size[1])
self.tree.resizeColumnToContents(2)
root_item = self.tree.invisibleRootItem()
plus = QTreeWidgetItem(root_item)
plus_button = QPushButton("add molecule")
plus_button.setFlat(True)
plus_button.clicked.connect(self.add_mol_group)
plus_button2 = QPushButton("")
plus_button2.setFlat(True)
plus_button2.clicked.connect(self.add_mol_group)
self.tree.setItemWidget(plus, 0, plus_button)
self.tree.setItemWidget(plus, 1, plus_button2)
self.tree.insertTopLevelItem(1, plus)
self.add_mol_group()
frame_layout.addWidget(self.tree)
layout.addWidget(frame)
def get_tree_item_name(self, tree_item):
"""
Returns a list with all the column names of the given QTreeWidgetItem
:param tree_item: QTreeWidgetItem, item we want to retrive name of
:return: list<str>
"""
try:
# When selecting an item in the tree and refreshing a C++ wrapped will raise
count = QTreeWidgetItem.columnCount(tree_item)
except Exception:
count = 0
name = list()
for i in range(count):
name.append(str(tree_item.text(i)))
return name
def add_mol_group(self, *args):
row = self.tree.topLevelItemCount()
root_item = self.tree.invisibleRootItem()
mol_group = QTreeWidgetItem(root_item)
self.tree.insertTopLevelItem(row, mol_group)
trash_button = QPushButton()
trash_button.setFlat(True)
trash_button.clicked.connect(
lambda *args, parent=mol_group: self.remove_mol_group(parent))
trash_button.setIcon(
QIcon(self.style().standardIcon(QStyle.SP_DialogDiscardButton)))
add_conf_button = QPushButton("add conformer")
add_conf_button.setFlat(True)
add_conf_button.clicked.connect(
lambda *args, conf_group_widget=mol_group: self.add_conf_group(
conf_group_widget))
add_conf_button2 = QPushButton("")
add_conf_button2.setFlat(True)
add_conf_button2.clicked.connect(
lambda *args, conf_group_widget=mol_group: self.add_conf_group(
conf_group_widget))
add_conf_child = QTreeWidgetItem(mol_group)
self.tree.setItemWidget(add_conf_child, 0, add_conf_button)
self.tree.setItemWidget(add_conf_child, 1, add_conf_button2)
self.tree.setItemWidget(mol_group, 2, trash_button)
mol_group.setText(0, "group %i" % row)
mol_group.addChild(add_conf_child)
self.add_conf_group(mol_group)
self.tree.expandItem(mol_group)
self.changes.emit()
def _update_names_list(self, nodes):
"""
Internal function that updates names list with given node names
:param nodes: list(str)
"""
nodes_to_discard = self._get_nodes_to_discard() or list()
nodes = list(set(nodes))
for obj in nodes:
if obj in nodes_to_discard:
continue
node_type = dcc.node_type(obj)
if node_type not in self._get_node_types(
) and not self._others_btn.isChecked():
is_valid = False
for node_type in self._get_node_types():
is_valid = dcc.check_object_type(obj,
node_type,
check_sub_types=True)
if is_valid:
break
if not is_valid:
continue
node_name = dcc.node_short_name(obj)
item = QTreeWidgetItem(self._names_list, [node_name])
item.obj = node_name
item.preview_name = ''
item.full_name = obj
if dcc.is_maya():
sel = api.SelectionList()
sel.add(obj)
item.handle = maya.OpenMaya.MObjectHandle(
sel.get_depend_node(0))
self._names_list.addTopLevelItem(item)
def update_versions_from_commits_data(self,
commits_data,
current_commit_data=None):
self.clear()
if not commits_data:
return
# https://stackoverflow.com/questions/42896141/how-to-lazily-iterate-on-reverse-order-of-keys-in-ordereddict/42896182#42896182
for i, (commit, commit_data) in enumerate(
((commit, commits_data[commit])
for commit in reversed(commits_data))):
item = QTreeWidgetItem()
item.setText(0, str(i + 1))
item.setText(1, commit_data.get('message', ''))
item.setText(2, commit_data.get('author', ''))
item.setText(3, commit_data.get('date', ''))
item.setText(4, commit)
self.addTopLevelItem(item)
if current_commit_data:
for current_commit in list(current_commit_data.keys()):
if current_commit == commit:
item.setBackgroundColor(0, Qt.green)
def _add_item(self, version_data):
version, comment, user, file_size, file_date, version_file = version_data
version_str = str(version).zfill(self._padding)
item = QTreeWidgetItem()
item.setText(0, version_str)
item.setText(1, comment)
item.setText(2, str(file_size))
item.setText(3, user)
item.setText(4, file_date)
self.addTopLevelItem(item)
item.file_path = version_file
def fill_tree(self, trigger_name=None, trigger_job=None):
item_stack = [self.tree.invisibleRootItem()]
self.tree.clear()
jobs = self.session.seqcrow_job_manager.jobs
for job in jobs:
name = job.name
parent = item_stack[0]
item = QTreeWidgetItem(parent)
item_stack.append(item)
item.setData(self.NAME_COL, Qt.DisplayRole, job)
item.setText(self.NAME_COL, name)
if isinstance(job, LocalJob):
if job.killed:
item.setText(self.STATUS_COL, "killed")
del_job_widget = QWidget()
del_job_layout = QGridLayout(del_job_widget)
del_job = QPushButton()
del_job.clicked.connect(
lambda *args, job=job: self.remove_job(job))
del_job.setIcon(
QIcon(del_job_widget.style().standardIcon(
QStyle.SP_DialogDiscardButton)))
del_job.setFlat(True)
del_job_layout.addWidget(del_job, 0, 0, 1, 1,
Qt.AlignHCenter)
del_job_layout.setColumnStretch(0, 1)
del_job_layout.setContentsMargins(0, 0, 0, 0)
self.tree.setItemWidget(item, self.DEL_COL, del_job_widget)
elif job.isRunning():
if job in self.session.seqcrow_job_manager.unknown_status_jobs:
unk_widget = QWidget()
unk_layout = QGridLayout(unk_widget)
unk = QPushButton()
unk.setIcon(
QIcon(unk_widget.style().standardIcon(
QStyle.SP_MessageBoxQuestion)))
unk.setFlat(True)
unk.clicked.connect(lambda *args, job=job: self.
show_ask_if_running(job))
unk_layout.addWidget(unk, 0, 0, 1, 1, Qt.AlignHCenter)
unk_layout.setColumnStretch(0, 1)
unk_layout.setContentsMargins(0, 0, 0, 0)
self.tree.setItemWidget(item, self.STATUS_COL,
unk_widget)
else:
item.setText(self.STATUS_COL, "running")
kill_widget = QWidget()
kill_layout = QGridLayout(kill_widget)
kill = QPushButton()
kill.setIcon(
QIcon(kill_widget.style().standardIcon(
QStyle.SP_DialogCancelButton)))
kill.setFlat(True)
kill.clicked.connect(lambda *args, job=job: job.kill())
kill.clicked.connect(
lambda *args, session=self.session: session.
seqcrow_job_manager.triggers.activate_trigger(
JOB_QUEUED, "resume"))
kill_layout.addWidget(kill, 0, 0, 1, 1, Qt.AlignLeft)
kill_layout.setColumnStretch(0, 0)
kill_layout.setContentsMargins(0, 0, 0, 0)
self.tree.setItemWidget(item, self.KILL_COL,
kill_widget)
elif job.isFinished():
if not job.error:
item.setText(self.STATUS_COL, "finished")
else:
error_widget = QWidget()
error_layout = QGridLayout(error_widget)
error = QPushButton()
error.setIcon(
QIcon(error_widget.style().standardIcon(
QStyle.SP_MessageBoxWarning)))
error.setFlat(True)
error.setToolTip(
"job did not finish without errors or output file cannot be found"
)
error_layout.addWidget(error, 0, 0, 1, 1,
Qt.AlignHCenter)
error_layout.setColumnStretch(0, 1)
error_layout.setContentsMargins(0, 0, 0, 0)
self.tree.setItemWidget(item, self.STATUS_COL,
error_widget)
del_job_widget = QWidget()
del_job_layout = QGridLayout(del_job_widget)
del_job = QPushButton()
del_job.clicked.connect(
lambda *args, job=job: self.remove_job(job))
del_job.setIcon(
QIcon(del_job_widget.style().standardIcon(
QStyle.SP_DialogDiscardButton)))
del_job.setFlat(True)
del_job_layout.addWidget(del_job, 0, 0, 1, 1,
Qt.AlignHCenter)
del_job_layout.setColumnStretch(0, 1)
del_job_layout.setContentsMargins(0, 0, 0, 0)
self.tree.setItemWidget(item, self.DEL_COL, del_job_widget)
else:
item.setText(self.STATUS_COL, "queued")
priority_widget = QWidget()
priority_layout = QGridLayout(priority_widget)
inc_priority = QPushButton()
inc_priority.setIcon(
QIcon(priority_widget.style().standardIcon(
QStyle.SP_ArrowUp)))
inc_priority.setFlat(True)
inc_priority.clicked.connect(
lambda *args, job=job: self.session.seqcrow_job_manager
.increase_priotity(job))
priority_layout.addWidget(inc_priority, 0, 0, 1, 1,
Qt.AlignRight)
dec_priority = QPushButton()
dec_priority.setIcon(
QIcon(priority_widget.style().standardIcon(
QStyle.SP_ArrowDown)))
dec_priority.setFlat(True)
dec_priority.clicked.connect(
lambda *args, job=job: self.session.seqcrow_job_manager
.decrease_priotity(job))
priority_layout.addWidget(dec_priority, 0, 1, 1, 1,
Qt.AlignLeft)
priority_layout.setColumnStretch(0, 1)
priority_layout.setColumnStretch(1, 1)
priority_layout.setContentsMargins(0, 0, 0, 0)
self.tree.setItemWidget(item, self.CHANGE_PRIORITY,
priority_widget)
kill_widget = QWidget()
kill_layout = QGridLayout(kill_widget)
kill = QPushButton()
kill.setIcon(
QIcon(kill_widget.style().standardIcon(
QStyle.SP_DialogCancelButton)))
kill.setFlat(True)
kill.clicked.connect(lambda *args, job=job: job.kill())
kill.clicked.connect(
lambda *args, session=self.session: session.
seqcrow_job_manager.triggers.activate_trigger(
JOB_QUEUED, "resume"))
kill_layout.addWidget(kill, 0, 0, 1, 1, Qt.AlignLeft)
kill_layout.setColumnStretch(0, 0)
kill_layout.setContentsMargins(0, 0, 0, 0)
self.tree.setItemWidget(item, self.KILL_COL, kill_widget)
item.setText(self.SERVER_COL, "local")
if job.scratch_dir and os.path.exists(job.scratch_dir):
browse_widget = QWidget()
browse_layout = QGridLayout(browse_widget)
browse = QPushButton()
browse.clicked.connect(
lambda *args, job=job: self.browse_local(job))
browse.setIcon(
QIcon(browse_widget.style().standardIcon(
QStyle.SP_DirOpenIcon)))
browse.setFlat(True)
browse_layout.addWidget(browse, 0, 0, 1, 1, Qt.AlignLeft)
browse_layout.setColumnStretch(0, 1)
browse_layout.setContentsMargins(0, 0, 0, 0)
self.tree.setItemWidget(item, self.BROWSE_COL,
browse_widget)
self.tree.expandItem(item)
self.tree.resizeColumnToContents(self.STATUS_COL)
self.tree.resizeColumnToContents(self.SERVER_COL)
self.tree.resizeColumnToContents(self.CHANGE_PRIORITY)
self.tree.resizeColumnToContents(self.KILL_COL)
self.tree.resizeColumnToContents(self.DEL_COL)
self.tree.resizeColumnToContents(self.BROWSE_COL)
def insertNode(self, nodeCategoryPath, name, doc=None, libName=None):
nodePath = nodeCategoryPath.split('|')
categoryPath = ''
# walk from tree top to bottom, creating folders if needed
# also writing all paths in dict to avoid duplications
for folderId in range(0, len(nodePath)):
folderName = nodePath[folderId]
if folderId == 0:
categoryPath = folderName
if categoryPath not in self.categoryPaths:
rootFolderItem = QTreeWidgetItem(self)
rootFolderItem.bCategory = True
rootFolderItem.setFlags(QtCore.Qt.ItemIsEnabled)
rootFolderItem.setText(0, folderName)
rootFolderItem.setBackground(folderId,
QtGui.QColor(80, 85, 80))
self.categoryPaths[categoryPath] = rootFolderItem
else:
parentCategoryPath = categoryPath
categoryPath += '|{}'.format(folderName)
if categoryPath not in self.categoryPaths:
childCategoryItem = QTreeWidgetItem(
self.categoryPaths[parentCategoryPath])
childCategoryItem.setFlags(QtCore.Qt.ItemIsEnabled)
childCategoryItem.bCategory = True
childCategoryItem.setText(0, folderName)
childCategoryItem.setBackground(0,
QtGui.QColor(80, 85, 80))
self.categoryPaths[categoryPath] = childCategoryItem
# create node under constructed folder
nodeItem = QTreeWidgetItem(self.categoryPaths[categoryPath])
nodeItem.bCategory = False
nodeItem.setText(0, name)
nodeItem.libName = libName
if doc:
nodeItem.setToolTip(0, doc)
def fill_tree(self, *args):
item_stack = [self.tree.invisibleRootItem()]
self.tree.clear()
self._items = []
fr_dict = self.session.filereader_manager.filereader_dict
for model in fr_dict.keys():
id = model.id
if id is None:
continue
name = model.name
parent = item_stack[0]
item = QTreeWidgetItem(parent)
item._model = model
item_stack.append(item)
self._items.append(item)
item.setData(self.NAME_COL, Qt.DisplayRole, model)
item.setText(self.NAME_COL, name)
item.setText(self.ID_COL, ".".join([str(x) for x in id]))
if any(x.all_geom is not None and len(x.all_geom) > 1 for x in fr_dict[model]):
item.setText(self.COORDSETS_COL, "yes")
else:
item.setText(self.COORDSETS_COL, "no")
if any("energy" in x.other for x in fr_dict[model]):
item.setText(self.NRG_COL, "yes")
else:
item.setText(self.NRG_COL, "no")
if any("frequency" in x.other for x in fr_dict[model]):
item.setText(self.FREQ_COL, "yes")
else:
item.setText(self.FREQ_COL, "no")
for fr in fr_dict[model]:
child = QTreeWidgetItem(item)
child.setData(self.NAME_COL, Qt.DisplayRole, fr)
child.setText(self.NAME_COL, fr.name)
if fr.all_geom is not None and len(fr.all_geom) > 1:
child.setText(self.COORDSETS_COL, "yes")
else:
child.setText(self.COORDSETS_COL, "no")
if "energy" in fr.other:
child.setText(self.NRG_COL, "%.6f" % fr.other["energy"])
else:
child.setText(self.NRG_COL, "")
if "frequency" in fr.other:
child.setText(self.FREQ_COL, "yes")
else:
child.setText(self.FREQ_COL, "no")
#self.tree.expandItem(item)
for i in [self.ID_COL, self.COORDSETS_COL, self.NRG_COL, self.FREQ_COL]:
self.tree.resizeColumnToContents(i)
def _add_item(self, file_name, parent=None):
"""
Function that adds given file into the tree
:param file_name: str, name of the file new item will store
:param parent: QTreeWidgetItem, parent item to append new item into
:return: QTreeWidet, new item added
"""
try:
self.blockSignals(True)
self.clearSelection()
finally:
self.blockSignals(False)
path_name = file_name
found = False
# Check if item exists
if parent:
parent_path = self.get_tree_item_path_string(parent)
path_name = '{}/{}'.format(parent_path, file_name)
for i in range(parent.childCount()):
item = parent.child(i)
if item.text(0) == file_name:
found = item
else:
for i in range(self.topLevelItemCount()):
item = self.topLevelItem(i)
if item.text(0) == file_name:
found = item
# Check if the item should be excluded or not from the tree
exclude = self.EXCLUDE_EXTENSIONS
if exclude:
split_name = file_name.split('.')
extension = split_name[-1]
if extension in exclude:
return
if found:
item = found
else:
item = self.create_item_widget(file_name)
# Constrain item size if necessary
size = self.ITEM_WIDGET_SIZE
if size:
size = QSize(*size)
item.setSizeHint(self._title_text_index, size)
# Set item text
item_path = path.join_path(self._directory, path_name)
sub_files = folder.get_files_and_folders(item_path)
item.setText(self._title_text_index, file_name)
# Retrieve file properties
if self.header().count() > 1:
if path.is_file(item_path):
size = fileio.get_file_size(item_path)
date = fileio.get_last_modified_date(item_path)
item.setText(self._title_text_index + 1, str(size))
item.setText(self._title_text_index + 2, str(date))
# Update valid sub files
# NOTE: Sub files are added dynamically when the user expands an item
if sub_files:
self._delete_children(item)
exclude_extensions = self.EXCLUDE_EXTENSIONS
exclude_count = 0
if exclude_extensions:
for f in sub_files:
for exclude in exclude_extensions:
if f.endswith(exclude):
exclude_count += 1
break
if exclude_count != len(sub_files):
QTreeWidgetItem(item)
# Add item to tree hierarchy
if parent:
parent.addChild(item)
try:
self.blockSignals(True)
self.setCurrentItem(item)
finally:
self.blockSignals(False)
else:
self.addTopLevelItem(item)
return item
