pyQt QWizard 在完成按钮旁边更改以提前退出答案

【问题标题】：pyQt QWizard change next to finish button to exit earlypyQt QWizard 在完成按钮旁边更改以提前退出
【发布时间】：2015-07-12 22:15:05
【问题描述】：

如果用户输入了足够的数据，有没有办法在向导中途将下一步按钮更改为完成按钮？下面的示例使用 HaveFinishButtonOnEarlyPages 集 - 但是如果用户选择单选按钮，我想做的是用完成按钮替换下一个按钮。这可能吗？

from PyQt4 import QtGui
from PyQt4.QtGui import QWizard
import sys

def createPage1():
    page = QtGui.QWizardPage()
    page.setTitle("Page 1")
    page.setSubTitle("Enter some data, if you don't want to enter any more data select finish early.")
    essentialLabel = QtGui.QLabel("Essential data:")
    essentialLineEdit = QtGui.QLineEdit()
    finishEarlyRB = QtGui.QRadioButton("Select to finish wizard early")
    layout = QtGui.QGridLayout()
    layout.addWidget(essentialLabel, 0, 0)
    layout.addWidget(essentialLineEdit, 0, 1)
    layout.addWidget(finishEarlyRB, 1, 0)
    page.setLayout(layout)
    return page

def createPage2():
    page = QtGui.QWizardPage()
    page.setTitle("Page 2")
    page.setSubTitle("Enter some more data.")
    nonEssentialLabel = QtGui.QLabel("Non essential data:")
    nonEssentialLineEdit = QtGui.QLineEdit()
    layout = QtGui.QGridLayout()
    layout.addWidget(nonEssentialLabel, 0, 0)
    layout.addWidget(nonEssentialLineEdit, 0, 1)
    page.setLayout(layout)
    return page

if __name__ == '__main__':
    app = QtGui.QApplication(sys.argv)
    wizard = QtGui.QWizard()
    wizard.setOption(QWizard.HaveFinishButtonOnEarlyPages, on=True)
    wizard.addPage(createPage1())
    wizard.addPage(createPage2())
    wizard.show()
    sys.exit(wizard.exec_())

【问题讨论】：

从用户体验的角度来看，我会说将完成按钮与下一步按钮一起设置并在相关时启用它会更清晰。

标签： pyqt pyside wizard

【解决方案1】：

感谢无花果，我重新编写了代码，以便用户拥有下一步和完成按钮。当满足页面上的某些条件时，将启用完成按钮，如下所示。

from PyQt4 import QtGui
from PyQt4.QtGui import QWizard, QWizardPage
import sys

class TrialWizard(QWizard):
    def __init__(self, parent = None):
        super(QWizard, self).__init__(parent)
        self.setOption(QWizard.HaveFinishButtonOnEarlyPages, on=True)
        self.addPage(TrialWizardPage1(self))
        self.addPage(TrialWizardPage2(self))


class TrialWizardPage1(QWizardPage):
    def __init__(self, parent):
        super(TrialWizardPage1, self).__init__(parent)
        self.setupUi()
        self.connectSlots()

    def setupUi(self):
        self.setTitle("Page 1")
        self.setSubTitle("Enter some data, if you don't want to enter any more data select finish early.")
        essentialLabel = QtGui.QLabel("Essential data:")
        self.essentialLineEdit = QtGui.QLineEdit()
        self.finishEarlyRB = QtGui.QRadioButton("Select to finish wizard early")
        layout = QtGui.QGridLayout()
        layout.addWidget(essentialLabel, 0, 0)
        layout.addWidget(self.essentialLineEdit, 0, 1)
        layout.addWidget(self.finishEarlyRB, 1, 0)
        self.setLayout(layout)

    def isComplete(self):
        if len(self.essentialLineEdit.text()) > 0:
            return True
        else:
            return False

    def connectSlots(self):
        self.finishEarlyRB.clicked.connect(self.finishEarlyRBClicked)

    def finishEarlyRBClicked(self):
        if self.finishEarlyRB.isChecked():
            self.setFinalPage(True)
            self.completeChanged.emit()

class TrialWizardPage2(QWizardPage):
    def __init__(self, parent):
        super(TrialWizardPage2, self).__init__(parent)
        self.setupUi()

    def setupUi(self):
        self.setTitle("Page 2")
        self.setSubTitle("Enter some more data.")
        nonEssentialLabel = QtGui.QLabel("Non essential data:")
        nonEssentialLineEdit = QtGui.QLineEdit()
        layout = QtGui.QGridLayout()
        layout.addWidget(nonEssentialLabel, 0, 0)
        layout.addWidget(nonEssentialLineEdit, 0, 1)
        self.setLayout(layout)

if __name__ == '__main__':
    app = QtGui.QApplication(sys.argv)
    wizard = TrialWizard()
    wizard.show()
    sys.exit(app.exec_())

【讨论】：