The rules are to be followed!
") ); acceptDeal = new QCheckBox( tr("I accept") ); layout->addWidget( textEdit, 0, 0, 1, 2 ); layout->addWidget( acceptDeal, 1, 1 ); } class PageTwo : public QWidget { public: PageTwo( QWidget *parent = 0 ); QCheckBox *doThis; QCheckBox *doThat; QCheckBox *extra; }; PageTwo::PageTwo( QWidget *parent ) : QWidget(parent) { QGridLayout *layout = new QGridLayout( this ); doThis = new QCheckBox( tr("Do this") ); doThat = new QCheckBox( tr("Do that") ); extra = new QCheckBox( tr("Add something extra") ); layout->addWidget( doThis, 0, 0 ); layout->addWidget( doThat, 1, 0 ); layout->addWidget( extra, 2, 0 ); layout->setRowMinimumHeight( 3, 0 ); } class PageThree : public QWidget { public: PageThree( QWidget *parent = 0 ); }; PageThree::PageThree( QWidget *parent ) : QWidget(parent) { QGridLayout *layout = new QGridLayout( this ); layout->addWidget( new QLabel( tr("All is ready. Press finish to get it done!") ), 0, 0 ); } Wizard::Wizard() : QDialog() { QGridLayout *layout = new QGridLayout( this ); QPushButton *cancel = new QPushButton( tr("Cancel") ); next = new QPushButton( tr("Next") ); previous = new QPushButton( tr("Previous" ) ); pages = new QStackedWidget(); layout->addWidget( pages, 0, 0, 1, 5 ); layout->setColumnMinimumWidth( 0, 50 ); layout->addWidget( previous, 1, 1 ); layout->addWidget( next, 1, 2 ); layout->setColumnMinimumWidth( 3, 5 ); layout->addWidget( cancel, 1, 4 ); previous->setEnabled( false ); next->setEnabled( false ); connect( next, SIGNAL(clicked()), this, SLOT(doNext()) ); connect( previous, SIGNAL(clicked()), this, SLOT(doPrev()) ); connect( cancel, SIGNAL(clicked()), this, SLOT(reject()) ); pages->addWidget( pageOne = new PageOne( pages ) ); pages->addWidget( pageTwo = new PageTwo( pages ) ); pages->addWidget( pageThree = new PageThree( pages ) ); connect( pageOne->acceptDeal, SIGNAL(toggled(bool)), next, SLOT(setEnabled(bool)) ); } void Wizard::doNext() { switch( pages->currentIndex() ) { case 0: previous->setEnabled( true ); disconnect( pageOne->acceptDeal, SIGNAL(toggled(bool)), next, SLOT(setEnabled(bool)) ); break; case 1: next->setText( tr("Finish") ); break; case 2: QMessageBox::information( this, tr("Finishing"), tr("Here is where the action takes place.") ); accept(); return; } pages->setCurrentIndex( pages->currentIndex()+1 ); } void Wizard::doPrev() { switch( pages->currentIndex() ) { case 1: previous->setEnabled( false ); next->setEnabled( pageOne->acceptDeal->isChecked() ); connect( pageOne->acceptDeal, SIGNAL(toggled(bool)), next, SLOT(setEnabled(bool)) ); break; case 2: next->setText( tr("Next") ); break; } pages->setCurrentIndex( pages->currentIndex()-1 ); } Foundations of Qt Development\Chapter09\wizard\wizard.h /* * Copyright (c) 2006-2007, Johan Thelin * * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * Neither the name of APress nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ #ifndef WIZARD_H #define WIZARD_H #include