SpinBox Delegate Example¶
A simple example that shows how a view can use a custom delegate to edit data obtained from a model.
# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
from __future__ import annotations
import sys
from PySide6.QtWidgets import (QApplication, QStyledItemDelegate, QSpinBox,
QTableView)
from PySide6.QtGui import QStandardItemModel, Qt
from PySide6.QtCore import QModelIndex
"""PySide6 port of the widgets/itemviews/spinboxdelegate from Qt v6.x"""
#! [0]
class SpinBoxDelegate(QStyledItemDelegate):
"""A delegate that allows the user to change integer values from the model
using a spin box widget. """
#! [0]
def __init__(self, parent=None):
super().__init__(parent)
#! [0]
#! [1]
def createEditor(self, parent, option, index):
editor = QSpinBox(parent)
editor.setFrame(False)
editor.setMinimum(0)
editor.setMaximum(100)
return editor
#! [1]
#! [2]
def setEditorData(self, editor, index):
value = index.model().data(index, Qt.ItemDataRole.EditRole)
editor.setValue(value)
#! [2]
#! [3]
def setModelData(self, editor, model, index):
editor.interpretText()
value = editor.value()
model.setData(index, value, Qt.ItemDataRole.EditRole)
#! [3]
#! [4]
def updateEditorGeometry(self, editor, option, index):
editor.setGeometry(option.rect)
#! [4]
#! [main0]
if __name__ == '__main__':
app = QApplication(sys.argv)
model = QStandardItemModel(4, 2)
tableView = QTableView()
tableView.setModel(model)
delegate = SpinBoxDelegate()
tableView.setItemDelegate(delegate)
#! [main0]
tableView.horizontalHeader().setStretchLastSection(True)
#! [main1]
for row in range(4):
for column in range(2):
index = model.index(row, column, QModelIndex())
value = (row + 1) * (column + 1)
model.setData(index, value)
#! [main1] //# [main2]
#! [main2]
#! [main3]
tableView.setWindowTitle("Spin Box Delegate")
tableView.show()
sys.exit(app.exec())
#! [main3]