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licensewizard.cpp Example File
licensewizard/licensewizard.cpp

    /****************************************************************************
    **
    ** Copyright (C) 2003-2006 Trolltech ASA. All rights reserved.
    **
    ** This file is part of a Qt Solutions component.
    **
    ** Licensees holding valid Qt Solutions licenses may use this file in
    ** accordance with the Qt Solutions License Agreement provided with the
    ** Software.
    **
    ** See http://www.trolltech.com/products/qt/addon/solutions/
    ** or email [email protected] for information about Qt Solutions
    ** License Agreements.
    **
    ** Contact [email protected] if any conditions of this licensing are
    ** not clear to you.
    **
    ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    **
    ****************************************************************************/
    #include <QtGui>

    #include "licensewizard.h"

    LicenseWizard::LicenseWizard(QWidget *parent)
        : QtWizard(parent)
    {
        setPage(Page_Intro, new IntroPage);
        setPage(Page_Evaluate, new EvaluatePage);
        setPage(Page_Register, new RegisterPage);
        setPage(Page_Details, new DetailsPage);
        setPage(Page_Conclusion, new ConclusionPage);

        setStartId(Page_Intro);

    #ifndef Q_WS_MAC
        setWizardStyle(ModernStyle);
    #endif
        setOption(HaveHelpButton, true);
        setPixmap(QtWizard::LogoPixmap, QPixmap(":/images/logo.png"));

        connect(this, SIGNAL(helpRequested()), this, SLOT(showHelp()));

        setWindowTitle(tr("License Wizard"));
    }

    void LicenseWizard::showHelp()
    {
        static QString lastHelpMessage;

        QString message;

        switch (currentId()) {
        case Page_Intro:
            message = tr("The decision you make here will affect which page you "
                         "get to see next.");
            break;
        case Page_Evaluate:
            message = tr("Make sure to provide a valid email address, such as "
                         "[email protected].");
            break;
        case Page_Register:
            message = tr("If you don't provide an upgrade key, you will be "
                         "asked to fill in your details.");
            break;
        case Page_Details:
            message = tr("Make sure to provide a valid email address, such as "
                         "[email protected].");
            break;
        case Page_Conclusion:
            message = tr("You must accept the terms and conditions of the "
                         "license to proceed.");
            break;
        default:
            message = tr("This help is likely not to be of any help.");
        }

        if (lastHelpMessage == message)
            message = tr("Sorry, I already gave what help I could. "
                         "Maybe you should try asking a human?");

        QMessageBox::information(this, tr("License Wizard Help"), message);

        lastHelpMessage = message;
    }

    IntroPage::IntroPage(QWidget *parent)
        : QtWizardPage(parent)
    {
        setTitle(tr("Introduction"));
        setPixmap(QtWizard::WatermarkPixmap, QPixmap(":/images/watermark.png"));

        topLabel = new QLabel(tr("This wizard will help you register your copy of "
                                 "<i>Super Product One</i>&trade; or start "
                                 "evaluating the product."));
        topLabel->setWordWrap(true);

        registerRadioButton = new QRadioButton(tr("&Register your copy"));
        evaluateRadioButton = new QRadioButton(tr("&Evaluate the product for 30 "
                                                  "days"));
        registerRadioButton->setChecked(true);

        QVBoxLayout *layout = new QVBoxLayout;
        layout->addWidget(topLabel);
        layout->addWidget(registerRadioButton);
        layout->addWidget(evaluateRadioButton);
        setLayout(layout);
    }

    int IntroPage::nextId() const
    {
        if (evaluateRadioButton->isChecked()) {
            return LicenseWizard::Page_Evaluate;
        } else {
            return LicenseWizard::Page_Register;
        }
    }

    EvaluatePage::EvaluatePage(QWidget *parent)
        : QtWizardPage(parent)
    {
        setTitle(tr("Evaluate <i>Super Product One</i>&trade;"));
        setSubTitle(tr("Please fill both fields. Make sure to provide a valid "
                       "email address (e.g., [email protected])."));

        nameLabel = new QLabel(tr("N&ame:"));
        nameLineEdit = new QLineEdit;
        nameLabel->setBuddy(nameLineEdit);

        emailLabel = new QLabel(tr("&Email address:"));
        emailLineEdit = new QLineEdit;
        emailLineEdit->setValidator(new QRegExpValidator(QRegExp(".*@.*"), this));
        emailLabel->setBuddy(emailLineEdit);

        registerField("evaluate.name*", nameLineEdit);
        registerField("evaluate.email*", emailLineEdit);

        QGridLayout *layout = new QGridLayout;
        layout->addWidget(nameLabel, 0, 0);
        layout->addWidget(nameLineEdit, 0, 1);
        layout->addWidget(emailLabel, 1, 0);
        layout->addWidget(emailLineEdit, 1, 1);
        setLayout(layout);
    }

    int EvaluatePage::nextId() const
    {
        return LicenseWizard::Page_Conclusion;
    }

    RegisterPage::RegisterPage(QWidget *parent)
        : QtWizardPage(parent)
    {
        setTitle(tr("Register Your Copy of <i>Super Product One</i>&trade;"));
        setSubTitle(tr("If you have an upgrade key, please fill in "
                       "the appropriate field."));

        nameLabel = new QLabel(tr("N&ame:"));
        nameLineEdit = new QLineEdit;
        nameLabel->setBuddy(nameLineEdit);

        upgradeKeyLabel = new QLabel(tr("&Upgrade key:"));
        upgradeKeyLineEdit = new QLineEdit;
        upgradeKeyLabel->setBuddy(upgradeKeyLineEdit);

        registerField("register.name*", nameLineEdit);
        registerField("register.upgradeKey", upgradeKeyLineEdit);

        QGridLayout *layout = new QGridLayout;
        layout->addWidget(nameLabel, 0, 0);
        layout->addWidget(nameLineEdit, 0, 1);
        layout->addWidget(upgradeKeyLabel, 1, 0);
        layout->addWidget(upgradeKeyLineEdit, 1, 1);
        setLayout(layout);
    }

    int RegisterPage::nextId() const
    {
        if (upgradeKeyLineEdit->text().isEmpty()) {
            return LicenseWizard::Page_Details;
        } else {
            return LicenseWizard::Page_Conclusion;
        }
    }

    DetailsPage::DetailsPage(QWidget *parent)
        : QtWizardPage(parent)
    {
        setTitle(tr("Fill In Your Details"));
        setSubTitle(tr("Please fill all three fields. Make sure to provide a valid "
                       "email address (e.g., [email protected])."));

        companyLabel = new QLabel(tr("&Company name:"));
        companyLineEdit = new QLineEdit;
        companyLabel->setBuddy(companyLineEdit);

        emailLabel = new QLabel(tr("&Email address:"));
        emailLineEdit = new QLineEdit;
        emailLineEdit->setValidator(new QRegExpValidator(QRegExp(".*@.*"), this));
        emailLabel->setBuddy(emailLineEdit);

        postalLabel = new QLabel(tr("&Postal address:"));
        postalLineEdit = new QLineEdit;
        postalLabel->setBuddy(postalLineEdit);

        registerField("details.company*", companyLineEdit);
        registerField("details.email*", emailLineEdit);
        registerField("details.postal*", postalLineEdit);

        QGridLayout *layout = new QGridLayout;
        layout->addWidget(companyLabel, 0, 0);
        layout->addWidget(companyLineEdit, 0, 1);
        layout->addWidget(emailLabel, 1, 0);
        layout->addWidget(emailLineEdit, 1, 1);
        layout->addWidget(postalLabel, 2, 0);
        layout->addWidget(postalLineEdit, 2, 1);
        setLayout(layout);
    }

    int DetailsPage::nextId() const
    {
        return LicenseWizard::Page_Conclusion;
    }

    ConclusionPage::ConclusionPage(QWidget *parent)
        : QtWizardPage(parent)
    {
        setTitle(tr("Complete Your Registration"));
        setPixmap(QtWizard::WatermarkPixmap, QPixmap(":/images/watermark.png"));

        bottomLabel = new QLabel;
        bottomLabel->setWordWrap(true);

        agreeCheckBox = new QCheckBox(tr("I agree to the terms of the license"));

        registerField("conclusion.agree*", agreeCheckBox);

        QVBoxLayout *layout = new QVBoxLayout;
        layout->addWidget(bottomLabel);
        layout->addWidget(agreeCheckBox);
        setLayout(layout);
    }

    int ConclusionPage::nextId() const
    {
        return -1;
    }

    void ConclusionPage::initializePage()
    {
        QString licenseText;

        if (wizard()->hasVisitedPage(LicenseWizard::Page_Evaluate)) {
            licenseText = tr("<u>Evaluation License Agreement:</u> "
                             "You can use this software for 30 days and make one "
                             "backup, but you are not allowed to distribute it.");
        } else if (wizard()->hasVisitedPage(LicenseWizard::Page_Details)) {
            licenseText = tr("<u>First-Time License Agreement:</u> "
                             "You can use this software subject to the license "
                             "you will receive by email.");
        } else {
            licenseText = tr("<u>Upgrade License Agreement:</u> "
                             "This software is licensed under the terms of your "
                             "current license.");
        }
        bottomLabel->setText(licenseText);
    }

    void ConclusionPage::setVisible(bool visible)
    {
        QtWizardPage::setVisible(visible);

        if (visible) {
            wizard()->setButtonText(QtWizard::CustomButton1, tr("&Print"));
            wizard()->setOption(QtWizard::HaveCustomButton1, true);
            connect(wizard(), SIGNAL(customButtonClicked(int)),
                    this, SLOT(printButtonClicked()));
        } else {
            wizard()->setOption(QtWizard::HaveCustomButton1, false);
            disconnect(wizard(), SIGNAL(customButtonClicked(int)),
                       this, SLOT(printButtonClicked()));
        }
    }

    void ConclusionPage::printButtonClicked()
    {
        QPrinter printer;
        QPrintDialog dialog(&printer, this);
        if (dialog.exec())
            QMessageBox::warning(this, tr("Print License"),
                                 tr("As an environmentally friendly measure, the "
                                    "license text will not actually be printed."));
    }


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