def sort(self, reversed_=False):
all_items = self.tileview.items
try:
if not all_items:
raise NoSampleError
sorter = Sorter(self.sortAlgorithm.currentText(), all_items,
self.sort_filter_indices)
if sorter.requiresTreeData():
sorter.treedata = self.sortFilterFeatures(self.model.features)
except NoSampleError:
return
try:
dist = sorter()
except Exception as e:
QMessageBox.warning(self, 'Warning', str(e))
return
if reversed_:
dist = -1 * dist
if dist is not None:
for d, item in zip(dist, all_items):
item.sortkey = d
self.startSorting.emit()
