QWizardPage 中的 QSpinbox 获得初始焦点，即使其焦点策略设置为 NoFocus

Question

我在 QWizardPage 中创建了一个 QSpinBox。即使我将 focusPolicy 设置为 Qt.Nofocus.

，它也会在向导页面的开头获得焦点

我在Qt creator中设置的是：

但是当向导页面启动时，我得到：

然后，如果我按几次Tab，焦点将按预期在Finish和Cancel之间移动。

我在 Windows 10 上使用 PyQt 5.15.6。我的 python 代码包含一个由 pyuic5 生成的 WizardPage.py 文件和一个 test_wizard.py 文件.

WizardPage.py 文件：

# -*- coding: utf-8 -*-

# Form implementation generated from reading ui file 'wizardpage.ui'
#
# Created by: PyQt5 UI code generator 5.15.6
#
# WARNING: Any manual changes made to this file will be lost when pyuic5 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_WizardPage(object):
    def setupUi(self, WizardPage):
        WizardPage.setObjectName("WizardPage")
        WizardPage.resize(400, 300)
        self.spinBox = QtWidgets.QSpinBox(WizardPage)
        self.spinBox.setGeometry(QtCore.QRect(40, 50, 42, 22))
        self.spinBox.setFocusPolicy(QtCore.Qt.NoFocus)
        self.spinBox.setObjectName("spinBox")

        self.retranslateUi(WizardPage)
        QtCore.QMetaObject.connectSlotsByName(WizardPage)

    def retranslateUi(self, WizardPage):
        _translate = QtCore.QCoreApplication.translate
        WizardPage.setWindowTitle(_translate("WizardPage", "WizardPage"))

test_wizard.py 文件:

from PyQt5 import QtCore, QtGui, QtWidgets
from WizardPage import *
from PyQt5.Qt import *
from PyQt5.QtCore import *
import sys


class test_wizard_page(QtWidgets.QWizardPage, Ui_WizardPage):
    def __init__(self, parent):
        super().__init__(parent)
        self.setupUi(self)


class MyWizard(QtWidgets.QWizard):
    def __init__(self):
        super().__init__()

        self.test_wizard_page = test_wizard_page(self)
        # self.test_wizard_page.setE
        self.addPage(self.test_wizard_page)


if __name__ == "__main__":
    app = QApplication(sys.argv)
    wizard = MyWizard()
    wizard.show()
    sys.exit(app.exec_())

我使用 Qt Creator 创建的 .ui 文件：

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>WizardPage</class>
 <widget class="QWizardPage" name="WizardPage">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>400</width>
    <height>300</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>WizardPage</string>
  </property>
  <widget class="QSpinBox" name="spinBox">
   <property name="geometry">
    <rect>
     <x>40</x>
     <y>50</y>
     <width>42</width>
     <height>22</height>
    </rect>
   </property>
   <property name="focusPolicy">
    <enum>Qt::NoFocus</enum>
   </property>
  </widget>
 </widget>
 <resources/>
 <connections/>
</ui>

This question可能与我的问题有关。我也尝试重现他们的问题，但我目前使用的 PyQt 失败了。我的问题也是Qt的错误吗？又该如何处理？

Answer 1

我可以重现该行为，它仍然存在于 PyQt6 中。一个work-around是在spin-box的line-edit上设置focus-policy（没必要在spin-box上也设置）。如果您还想恢复正常的焦点行为，可以使用 single-shot 计时器来完成：

class test_wizard_page(QtWidgets.QWizardPage, Ui_WizardPage):
    def __init__(self, parent):
        super().__init__(parent)
        self.setupUi(self)
        for spinbox in self.findChildren(QtWidgets.QSpinBox):
            edit = spinbox.lineEdit()
            policy = edit.focusPolicy()
            edit.setFocusPolicy(QtCore.Qt.NoFocus)
            QtCore.QTimer.singleShot(
                0, lambda edit=edit, policy=policy:
                    edit.setFocusPolicy(policy))

QWizardPage 中的 QSpinbox 获得初始焦点，即使其焦点策略设置为 NoFocus

QSpinbox in QWizardPage gets initial focus even if its focus-policy is set to NoFocus

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