“Trivial Wizard”示例
“简单向导”示例演示了如何使用三个QWizardPage 实例和一个QWizard 实例来创建一个线性的三页注册向导。
简介页面
介绍页面通过createIntroPage() 函数创建，该函数会创建一个QWizardPage 并将其标题设置为“介绍”。使用QLabel 来存储page 的描述内容。使用QVBoxLayout 来存储label 。当调用createIntroPage() 函数时，会返回该page 。
QWizardPage *createIntroPage()
{
QWizardPage *page = new QWizardPage;
page->setTitle("Introduction");
QLabel *label = new QLabel("This wizard will help you register your copy "
"of Super Product Two.");
label->setWordWrap(true);
QVBoxLayout *layout = new QVBoxLayout;
layout->addWidget(label);
page->setLayout(layout);
return page;
}注册页面
注册页面通过createRegistrationPage() 函数创建。使用QLineEdit 对象允许用户输入姓名和电子邮件地址。QGridLayout 用于保存QLabel 和QLineEdit 对象。
QWizardPage *createRegistrationPage()
{
QWizardPage *page = new QWizardPage;
page->setTitle("Registration");
page->setSubTitle("Please fill both fields.");
QLabel *nameLabel = new QLabel("Name:");
QLineEdit *nameLineEdit = new QLineEdit;
QLabel *emailLabel = new QLabel("Email address:");
QLineEdit *emailLineEdit = new QLineEdit;
QGridLayout *layout = new 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;
}结论页面
结论页面是在createConclusionPage() 函数中创建的。该函数的内容与createIntroPage() 类似。使用QLabel 来告知用户注册过程已成功完成。
QWizardPage *createConclusionPage()
{
QWizardPage *page = new QWizardPage;
page->setTitle("Conclusion");
QLabel *label = new QLabel("You are now successfully registered. Have a "
"nice day!");
label->setWordWrap(true);
QVBoxLayout *layout = new QVBoxLayout;
layout->addWidget(label);
page->setLayout(layout);
return page;
}main() 函数
main() 函数实例化了一个QWizard 对象wizard ，并将三个QWizardPage 对象全部添加到其中。将wizard 窗口标题设置为“Trivial Wizard”，并调用其show() 函数将其显示出来。
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
#if QT_CONFIG(translation)
QTranslator translator;
for (const QString &trPath : QLibraryInfo::paths(QLibraryInfo::TranslationsPath)) {
if (translator.load(QLocale(), u"qtbase"_s, u"_"_s, trPath)) {
app.installTranslator(&translator);
break;
}
}
#endif
QWizard wizard;
wizard.addPage(createIntroPage());
wizard.addPage(createRegistrationPage());
wizard.addPage(createConclusionPage());
wizard.setWindowTitle("Trivial Wizard");
wizard.show();
return app.exec();
}另请参阅《 QWizard 》 和《License Wizard Example》。
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