如何將頁面的功能連接到qwizard的下一個按鈕？

Question

我一直在看this的例子。我基於它編寫了我的代碼，但我仍然無法弄清楚如何連接qwizard的下一個按鈕。例如，我希望每次點擊下一個按鈕時打印頁面的名稱和編號。與完成按鈕相同，單擊完成後，我希望它打印「完成！」在控制檯上，主要知道如何連接這些按鈕以在其中一個頁面中執行功能。

Answer 1

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

• 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

代碼：

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