def index(self, row, column, parent_index=None):
if parent_index and parent_index.isValid():
parent_item = parent_index.internalPointer()
else:
parent_item = self.root_item
children_list = get_obj_value(parent_item, 'children')
if children_list and len(children_list) > row:
child_item = children_list[row]
if child_item:
set_obj_value(child_item, '_parent', parent_item)
return self.createIndex(row, column, child_item)
return QModelIndex()
def _slot_set_select(self, column, state):
current_model = self.model()
source_model = utils.real_model(current_model)
source_model.beginResetModel()
attr = '{}_checked'.format(source_model.header_list[column].get('key'))
for row in range(current_model.rowCount()):
real_index = utils.real_index(current_model.index(row, column))
data_obj = real_index.internalPointer()
if state is None:
old_state = utils.get_obj_value(data_obj, attr)
utils.set_obj_value(data_obj, attr, Qt.Unchecked if old_state == Qt.Checked else Qt.Checked)
else:
utils.set_obj_value(data_obj, attr, state)
source_model.endResetModel()
source_model.emit(SIGNAL('dataChanged(QModelIndex, QModelIndex)'), None, None)
def setData(self, index, value, role=Qt.EditRole):
if index.isValid() and role in [Qt.CheckStateRole, Qt.EditRole]:
attr_dict = self.header_list[index.column()]
key = attr_dict.get('key')
data_obj = index.internalPointer()
if role == Qt.CheckStateRole and attr_dict.get('checkable', False):
key += '_checked'
# 更新自己
set_obj_value(data_obj, key, value)
self.emit(SIGNAL('dataChanged(QModelIndex, QModelIndex)'),
index, index)
# 更新它的children
for row, sub_obj in enumerate(
get_obj_value(data_obj, 'children', [])):
set_obj_value(sub_obj, key, value)
sub_index = index.child(row, index.column())
self.emit(SIGNAL('dataChanged(QModelIndex, QModelIndex)'),
sub_index, sub_index)
# 更新它的parent
parent_index = index.parent()
if parent_index.isValid():
parent_obj = parent_index.internalPointer()
new_parent_value = value
old_parent_value = get_obj_value(parent_obj, key)
for sibling_obj in get_obj_value(
get_obj_value(data_obj, '_parent'), 'children',
[]):
if value != get_obj_value(sibling_obj, key):
new_parent_value = 1
break
if new_parent_value != old_parent_value:
set_obj_value(parent_obj, key, new_parent_value)
self.emit(
SIGNAL('dataChanged(QModelIndex, QModelIndex)'),
parent_index, parent_index)
else:
set_obj_value(data_obj, key, value)
# 采用 self.dataChanged.emit方式在houdini16里面会报错
# TypeError: dataChanged(QModelIndex,QModelIndex,QVector<int>) only accepts 3 arguments, 3 given!
# 所以临时使用旧式信号的发射方式
self.emit(SIGNAL('dataChanged(QModelIndex, QModelIndex)'),
index, index)
# self.dataChanged.emit(index, index)
return True
else:
return False
def test_set_obj_value(self, obj, attr, value):
"""Test set_obj_value with dict/object as arg."""
utils.set_obj_value(obj, attr, value)
assert utils.get_obj_value(obj, attr) == value