如何將頁面的功能連接到qwizard的下一個按鈕？

Question

我一直在看這個例子。 我基於它編寫了代碼，但仍然不知道如何連接qwizard的下一個按鈕。 例如，我希望它每次單擊下一個按鈕時都打印頁面的名稱和編號。 與完成按鈕相同，當單擊“完成”時，我希望它打印“完成！”。 在控制台上，主要是要了解如何連接這些按鈕以執行頁面之一中的功能。

Answer 1

您可以通過函數{your wizard}.button({type button})按鈕，其中按鈕類型可以是：

• QtGui.QWizard.BackButton
• QtGui.QWizard.NextButton
• QtGui.QWizard.CommitButton
• QtGui.QWizard.FinishButton
• QtGui.QWizard.CancelButton
• QtGui.QWizard.HelpButton
• QtGui.QWizard.CustomButton1
• QtGui.QWizard.CustomButton2
• QtGui.QWizard.CustomButton3

碼：

from PyQt4 import QtGui


def createIntroPage():
    page = QtGui.QWizardPage()
    page.setTitle("Introduction")

    label = QtGui.QLabel("This wizard will help you register your copy of "
            "Super Product Two.")
    label.setWordWrap(True)

    layout = QtGui.QVBoxLayout()
    layout.addWidget(label)
    page.setLayout(layout)

    return page


def createRegistrationPage():
    page = QtGui.QWizardPage()
    page.setTitle("Registration")
    page.setSubTitle("Please fill both fields.")

    nameLabel = QtGui.QLabel("Name:")
    nameLineEdit = QtGui.QLineEdit()

    emailLabel = QtGui.QLabel("Email address:")
    emailLineEdit = QtGui.QLineEdit()

    layout = QtGui.QGridLayout()
    layout.addWidget(nameLabel, 0, 0)
    layout.addWidget(nameLineEdit, 0, 1)
    layout.addWidget(emailLabel, 1, 0)
    layout.addWidget(emailLineEdit, 1, 1)
    page.setLayout(layout)

    return page


def createConclusionPage():
    page = QtGui.QWizardPage()
    page.setTitle("Conclusion")

    label = QtGui.QLabel("You are now successfully registered. Have a nice day!")
    label.setWordWrap(True)

    layout = QtGui.QVBoxLayout()
    layout.addWidget(label)
    page.setLayout(layout)

    return page


def backprint():
    print("Action: back Page: " + wizard.currentPage().title())

def nextprint():
    print("Action: next Page: " + wizard.currentPage().title())

def commitprint():
    print("Action: commit Page: " + wizard.currentPage().title())

def finishprint():
    print("Action:finish Page: " + wizard.currentPage().title())

def cancelprint():
    print("Action:cancel Page: " + wizard.currentPage().title())

if __name__ == '__main__':

    import sys

    app = QtGui.QApplication(sys.argv)

    wizard = QtGui.QWizard()

    wizard.addPage(createIntroPage())
    wizard.addPage(createRegistrationPage())
    wizard.addPage(createConclusionPage())

    wizard.button(QtGui.QWizard.BackButton).clicked.connect(backprint)
    wizard.button(QtGui.QWizard.NextButton).clicked.connect(nextprint)
    wizard.button(QtGui.QWizard.CommitButton).clicked.connect(commitprint)
    wizard.button(QtGui.QWizard.FinishButton).clicked.connect(finishprint)
    wizard.button(QtGui.QWizard.CancelButton).clicked.connect(cancelprint)

    wizard.setWindowTitle("Trivial Wizard")
    wizard.show()
    print("Page :" + wizard.currentPage().title())

    sys.exit(wizard.exec_())

輸出：

Page :Introduction
Action: next Page: Registration
Action: next Page: Conclusion
Action: back Page: Registration
Action: back Page: Introduction
Action: next Page: Registration
Action: next Page: Conclusion
Action:finish Page: Conclusion