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# Wizard

This example shows the usage of Qt's wizard class. A wizard should be used to help a user with complicated actions.

Header file:

    /****************************************************************************
    ** $Id: qt/wizard.h   3.3.8   edited Jan 11 14:37 $
    **
    ** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
    **
    ** This file is part of an example program for Qt.  This example
    ** program may be used, distributed and modified without limitation.
    **
    *****************************************************************************/

    #ifndef WIZARD_H
    #define WIZARD_H

    #include <qwizard.h>

    class QWidget;
    class QHBox;
    class QLineEdit;
    class QLabel;

    class Wizard : public QWizard
    {
        Q_OBJECT

    public:
        Wizard( QWidget *parent = 0, const char *name = 0 );

        void showPage(QWidget* page);

    protected:
        void setupPage1();
        void setupPage2();
        void setupPage3();

        QHBox *page1, *page2, *page3;
        QLineEdit *key, *firstName, *lastName, *address, *phone, *email;
        QLabel *lKey, *lFirstName, *lLastName, *lAddress, *lPhone, *lEmail;

    protected slots:
        void keyChanged( const QString & );
        void dataChanged( const QString & );

    };

    #endif

Implementation:

    /****************************************************************************
    ** $Id: qt/wizard.cpp   3.3.8   edited Jan 11 14:37 $
    **
    ** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
    **
    ** This file is part of an example program for Qt.  This example
    ** program may be used, distributed and modified without limitation.
    **
    *****************************************************************************/

    #include "wizard.h"

    #include <qwidget.h>
    #include <qhbox.h>
    #include <qvbox.h>
    #include <qlabel.h>
    #include <qlineedit.h>
    #include <qpushbutton.h>
    #include <qvalidator.h>
    #include <qapplication.h>

    Wizard::Wizard( QWidget *parent, const char *name )
        : QWizard( parent, name, TRUE )
    {
        setupPage1();
        setupPage2();
        setupPage3();

        key->setFocus();
    }

    void Wizard::setupPage1()
    {
        page1 = new QHBox( this );
        page1->setSpacing(8);

        QLabel *info = new QLabel( page1 );
        info->setMargin( 11 );
        info->setPalette( yellow );
        info->setText( "Enter your personal\n"
                       "key here.\n\n"
                       "Your personal key\n"
                       "consists of 4 digits" );
        info->setMaximumWidth( info->sizeHint().width() );

        QVBox *page = new QVBox( page1 );

        QHBox *row1 = new QHBox( page );

        (void)new QLabel( "Key:", row1 );

        key = new QLineEdit( row1 );
        key->setMaxLength( 4 );
        key->setValidator( new QIntValidator( 1000, 9999, key ) );

        connect( key, SIGNAL( textChanged( const QString & ) ),
                 this, SLOT( keyChanged( const QString & ) ) );

        addPage( page1, "Personal Key" );

        setNextEnabled( page1, FALSE );
        setHelpEnabled( page1, FALSE );
    }

    void Wizard::setupPage2()
    {
        page2 = new QHBox( this );
        page2->setSpacing(8);

        QLabel *info = new QLabel( page2 );
        info->setMargin( 11 );
        info->setPalette( yellow );
        info->setText( "\n"
                       "Enter your personal\n"
                       "data here.\n\n"
                       "The required fields are\n"
                       "First Name, Last Name \n"
                       "and E-Mail.\n" );
        info->setMaximumWidth( info->sizeHint().width() );

        QVBox *page = new QVBox( page2 );

        QHBox *row1 = new QHBox( page );
        QHBox *row2 = new QHBox( page );
        QHBox *row3 = new QHBox( page );
        QHBox *row4 = new QHBox( page );
        QHBox *row5 = new QHBox( page );

        QLabel *label1 = new QLabel( " First Name: ", row1 );
        label1->setAlignment( Qt::AlignVCenter );
        QLabel *label2 = new QLabel( " Last Name: ", row2 );
        label2->setAlignment( Qt::AlignVCenter );
        QLabel *label3 = new QLabel( " Address: ", row3 );
        label3->setAlignment( Qt::AlignVCenter );
        QLabel *label4 = new QLabel( " Phone Number: ", row4 );
        label4->setAlignment( Qt::AlignVCenter );
        QLabel *label5 = new QLabel( " E-Mail: ", row5 );
        label5->setAlignment( Qt::AlignVCenter );

        label1->setMinimumWidth( label4->sizeHint().width() );
        label2->setMinimumWidth( label4->sizeHint().width() );
        label3->setMinimumWidth( label4->sizeHint().width() );
        label4->setMinimumWidth( label4->sizeHint().width() );
        label5->setMinimumWidth( label4->sizeHint().width() );

        firstName = new QLineEdit( row1 );
        lastName = new QLineEdit( row2 );
        address = new QLineEdit( row3 );
        phone = new QLineEdit( row4 );
        email = new QLineEdit( row5 );

        connect( firstName, SIGNAL( textChanged( const QString & ) ),
                 this, SLOT( dataChanged( const QString & ) ) );
        connect( lastName, SIGNAL( textChanged( const QString & ) ),
                 this, SLOT( dataChanged( const QString & ) ) );
        connect( email, SIGNAL( textChanged( const QString & ) ),
                 this, SLOT( dataChanged( const QString & ) ) );

        addPage( page2, "Personal Data" );

        setHelpEnabled( page2, FALSE );
    }

    void Wizard::setupPage3()
    {
        page3 = new QHBox( this );
        page3->setSpacing(8);

        QLabel *info = new QLabel( page3 );
        info->setPalette( yellow );
        info->setText( "\n"
                       "Look here to see of\n"
                       "the data you entered\n"
                       "is correct. To confirm,\n"
                       "press the [Finish] button\n"
                       "else go back to correct\n"
                       "mistakes." );
        info->setMargin( 11 );
        info->setAlignment( AlignTop|AlignLeft );
        info->setMaximumWidth( info->sizeHint().width() );

        QVBox *page = new QVBox( page3 );

        QHBox *row1 = new QHBox( page );
        QHBox *row2 = new QHBox( page );
        QHBox *row3 = new QHBox( page );
        QHBox *row4 = new QHBox( page );
        QHBox *row5 = new QHBox( page );
        QHBox *row6 = new QHBox( page );

        QLabel *label1 = new QLabel( " Personal Key: ", row1 );
        label1->setAlignment( Qt::AlignVCenter );
        QLabel *label2 = new QLabel( " First Name: ", row2 );
        label2->setAlignment( Qt::AlignVCenter );
        QLabel *label3 = new QLabel( " Last Name: ", row3 );
        label3->setAlignment( Qt::AlignVCenter );
        QLabel *label4 = new QLabel( " Address: ", row4 );
        label4->setAlignment( Qt::AlignVCenter );
        QLabel *label5 = new QLabel( " Phone Number: ", row5 );
        label5->setAlignment( Qt::AlignVCenter );
        QLabel *label6 = new QLabel( " E-Mail: ", row6 );
        label6->setAlignment( Qt::AlignVCenter );

        label1->setMinimumWidth( label1->sizeHint().width() );
        label2->setMinimumWidth( label1->sizeHint().width() );
        label3->setMinimumWidth( label1->sizeHint().width() );
        label4->setMinimumWidth( label1->sizeHint().width() );
        label5->setMinimumWidth( label1->sizeHint().width() );
        label6->setMinimumWidth( label1->sizeHint().width() );

        lKey = new QLabel( row1 );
        lFirstName = new QLabel( row2 );
        lLastName = new QLabel( row3 );
        lAddress = new QLabel( row4 );
        lPhone = new QLabel( row5 );
        lEmail = new QLabel( row6 );

        addPage( page3, "Finish" );

        setFinishEnabled( page3, TRUE );
        setHelpEnabled( page3, FALSE );
    }

    void Wizard::showPage( QWidget* page )
    {
        if ( page == page1 ) {
        } else if ( page == page2 ) {
        } else if ( page == page3 ) {
            lKey->setText( key->text() );
            lFirstName->setText( firstName->text() );
            lLastName->setText( lastName->text() );
            lAddress->setText( address->text() );
            lPhone->setText( phone->text() );
            lEmail->setText( email->text() );
        }

        QWizard::showPage(page);

        if ( page == page1 ) {
            keyChanged( key->text() );
            key->setFocus();
        } else if ( page == page2 ) {
            dataChanged( firstName->text() );
            firstName->setFocus();
        } else if ( page == page3 ) {
            finishButton()->setEnabled( TRUE );
            finishButton()->setFocus();
        }
    }

    void Wizard::keyChanged( const QString &text )
    {
        QString t = text;
        int p = 0;
        bool on = ( key->validator()->validate(t, p) == QValidator::Acceptable );
        nextButton()->setEnabled( on );
    }

    void Wizard::dataChanged( const QString & )
    {
        if ( !firstName->text().isEmpty() &&
             !lastName->text().isEmpty() &&
             !email->text().isEmpty() )
            nextButton()->setEnabled( TRUE );
        else
            nextButton()->setEnabled( FALSE );
    }

Main:

    /****************************************************************************
    ** $Id: qt/main.cpp   3.3.8   edited Jan 11 14:37 $
    **
    ** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
    **
    ** This file is part of an example program for Qt.  This example
    ** program may be used, distributed and modified without limitation.
    **
    *****************************************************************************/

    #include "wizard.h"
    #include <qapplication.h>

    int main(int argc,char **argv)
    {
        QApplication a(argc,argv);

        Wizard wizard;
        wizard.setCaption("Qt Example - Wizard");
        return wizard.exec();
    }

See also Examples.