QTableView: openPersistentEditor doesn't resize

[beatreichenbach]

Hello,
I'm finding that editors opened with openPersistentEditors do not resize until the resize action has stopped.

Here's my code:

from PySide2 import QtCore, QtGui, QtWidgets

class Delegate(QtWidgets.QStyledItemDelegate):
    def createEditor(self, parent, option, index):
        editor = QtWidgets.QComboBox(parent)
        editor.addItems(map(str, range(5)))

        return editor

class Main(QtWidgets.QMainWindow):
    def __init__(self, parent=None):
        super().__init__(parent)

        self.tableview = QtWidgets.QTableView()
        self.model = QtGui.QStandardItemModel()
        self.tableview.setModel(self.model)
        self.setLayout(QtWidgets.QVBoxLayout())
        self.layout().addWidget(self.tableview)

        items = []
        for i in range(5):
            item = QtGui.QStandardItem()
            items.append(item)

        self.model.appendRow(items)
        self.tableview.setItemDelegateForColumn(1, Delegate(self))

        self.tableview.openPersistentEditor(self.model.index(0, 1))

if __name__ == '__main__':
    import sys
    app = QtWidgets.QApplication(sys.argv)
    main = Main()
    main.show()
    sys.exit(app.exec_())

And here's a screenshot of what the combobox looks like when resizing the columns.

I kept the example code as simple as possible, is there anything I'm missing?

Thanks,
Beat

[eyllanesc]

@beatreichenbach I do not reproduce the problem, try adding app.setStyle("fusion")

[beatreichenbach]

That didn't fix the issue itself. I appended another gif of the issue. This happens both in "standalone" Qt and in a dcc such as maya.

[eyllanesc]

@beatreichenbach okay, that's not the error you were describing. Now with the .gif the error is better understood.

what is your PySide2 version?

[beatreichenbach]

I'm using the latest PySide2 package available through pip: https://pypi.org/project/PySide2 which is currently PySide2 5.15.2.