I'm looking for QstandardItemModel Natural Sort Method. I'm reading some relevant question and try to my code. But It didn't work
My tool accept Some File list by Drag and Drop. I want to sort my Model data by Natural sort. and put it to listview.
So Here is my code:
class VideolistView (QtWidgets.QListView):
def __init__(self, parent):
super(VideolistView, self).__init__(parent)
self.setAcceptDrops(True)
self.setObjectName("VideolistView")
self.setGeometry(QtCore.QRect(8, 30, 250, 301))
self.Model = QtGui.QStandardItemModel(self)
def dragEnterEvent(self, event):
if event.mimeData().hasUrls:
event.accept()
else:
event.ignore()
def dragMoveEvent(self, event):
if event.mimeData().hasUrls:
event.accept()
else:
event.ignore()
def dropEvent(self, event):
if event.mimeData().hasUrls:
event.setDropAction(QtCore.Qt.CopyAction)
event.accept()
for url in event.mimeData().urls():
dropitem = str(url.toLocalFile())
Fname = os.path.split(dropitem)
if not self.Model.findItems(Fname[1]):
listitem = QtGui.QStandardItem(Fname[1])
self.Model.appendRow(listitem)
self.Model.sort(0)
self.setModel(self.Model)
else:
event.ignore()
Some my attemp announce.
import re
def _human_key(key):
parts = re.split('(\d*\.\d+|\d+)', key)
return tuple((e.swapcase() if i % 2 == 0 else float(e))
for i, e in enumerate(parts))
......
listitems=[]
for url in event.mimeData().urls():
dropitem = str(url.toLocalFile())
Fname = os.path.split(dropitem)
listitem = QtGui.QStandardItem(Fname[1])
listitems.appent(listitem)
listitems.sort(key=_human_key)
Pycharm debug Error listitems.sort(key=_human_key) and I tried reimplement of QstandardItemModel class
import re
def _human_key(key):
parts = re.split('(\d*\.\d+|\d+)', key)
return tuple((e.swapcase() if i % 2 == 0 else float(e))
for i, e in enumerate(parts))
......
Class NaturalSortModel (QtGui.QstandardItemModel)
def __lt__(self, other):
column = self.treeWidget().sortColumn()
k1 = self.text(column)
k2 = other.text(column)
return _human_key(k1) < _human_key(k2)
.......
Class VideolistView (QtWidgets.QListView)
def __init__(self, parent):
self.Model = self.NaturalSortModel(self)
........
self.Model.appendRow(listitem)
self.Model.sort(0)
self.setModel(self.Model)
........
above Two code Error. How I do Natural Sort with QstandardItemModel?
link : Python - Human sort of numbers with alpha numeric, but in pyQt and a __lt__ operator
With @eyllanesc Answer, First Solution with QSortFilterProxyModel Work well. It sort data by Natural order.
But @eyllanesc second advice(Qstandarditem inherit) is not work for me. It sort Alphabetically just like original source. @eyllanesc Thank you a lot!!!
If you want to establish a particular criterion of order you must do it through a model that inherits from QSortFilterProxyModel and implement the method lessThan as I show below:
class NaturalSortFilterProxyModel(QtCore.QSortFilterProxyModel):
@staticmethod
def _human_key(key):
parts = re.split('(\d*\.\d+|\d+)', key)
return tuple((e.swapcase() if i % 2 == 0 else float(e)) for i, e in enumerate(parts))
def lessThan(self, left, right):
leftData = self.sourceModel().data(left)
rightData = self.sourceModel().data(right)
return self._human_key(leftData) < self._human_key(rightData)
class VideolistView (QtWidgets.QListView):
def __init__(self, parent=None):
super(VideolistView, self).__init__(parent)
self.setAcceptDrops(True)
self.setObjectName("VideolistView")
self.setGeometry(QtCore.QRect(8, 30, 250, 301))
model = QtGui.QStandardItemModel(self)
proxyModel = NaturalSortFilterProxyModel()
proxyModel.setSourceModel(model)
proxyModel.sort(0, QtCore.Qt.AscendingOrder)
self.setModel(proxyModel)
def dragEnterEvent(self, event):
if event.mimeData().hasUrls():
event.accept()
else:
event.ignore()
def dragMoveEvent(self, event):
if event.mimeData().hasUrls():
event.accept()
else:
event.ignore()
def dropEvent(self, event):
if event.mimeData().hasUrls():
event.setDropAction(QtCore.Qt.CopyAction)
event.accept()
for url in event.mimeData().urls():
dropitem = str(url.toLocalFile())
Fname = os.path.split(dropitem)
if not self.model().sourceModel().findItems(Fname[1]):
listitem = QtGui.QStandardItem(Fname[1])
self.model().sourceModel().appendRow(listitem)
else:
event.ignore()
As @ekhumuro says, the solution shown in the link refers to creating a class that inherits from QStandardItem, as I show below
class NaturalStandardItem(QtGui.QStandardItem):
@staticmethod
def _human_key(key):
parts = re.split('(\d*\.\d+|\d+)', key)
return tuple((e.swapcase() if i % 2 == 0 else float(e)) for i, e in enumerate(parts))
def __lt__(self, other):
return self._human_key(self.text()) < self._human_key(other.text())
class VideolistView (QtWidgets.QListView):
def __init__(self, parent=None):
super(VideolistView, self).__init__(parent)
self.setAcceptDrops(True)
self.setObjectName("VideolistView")
self.setGeometry(QtCore.QRect(8, 30, 250, 301))
model = QtGui.QStandardItemModel(self)
self.setModel(model)
def dragEnterEvent(self, event):
if event.mimeData().hasUrls():
event.accept()
else:
event.ignore()
def dragMoveEvent(self, event):
if event.mimeData().hasUrls():
event.accept()
else:
event.ignore()
def dropEvent(self, event):
if event.mimeData().hasUrls():
event.setDropAction(QtCore.Qt.CopyAction)
event.accept()
for url in event.mimeData().urls():
dropitem = str(url.toLocalFile())
Fname = os.path.split(dropitem)
if not self.model().findItems(Fname[1]):
listitem = NaturalStandardItem(Fname[1])
self.model().appendRow(listitem)
self.model().sort(0)
else:
event.ignore()