complexwizard.cpp Example File
dialogs/complexwizard/complexwizard.cpp
/****************************************************************************
**
** Copyright (C) 2004-2005 Trolltech AS. All rights reserved.
**
** This file is part of the documentation of the Qt Toolkit.
**
** Licensees holding valid Qt Preview licenses may use this file in
** accordance with the Qt Preview License Agreement provided with the
** Software.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** information about Qt Commercial License Agreements.
**
** Contact info@trolltech.com 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 "complexwizard.h"
ComplexWizard::ComplexWizard(QWidget *parent)
: QDialog(parent)
{
cancelButton = new QPushButton(tr("Cancel"));
backButton = new QPushButton(tr("< &Back"));
nextButton = new QPushButton(tr("Next >"));
finishButton = new QPushButton(tr("&Finish"));
connect(cancelButton, SIGNAL(clicked()), this, SLOT(reject()));
connect(backButton, SIGNAL(clicked()), this, SLOT(backButtonClicked()));
connect(nextButton, SIGNAL(clicked()), this, SLOT(nextButtonClicked()));
connect(finishButton, SIGNAL(clicked()), this, SLOT(accept()));
buttonLayout = new QHBoxLayout;
buttonLayout->addStretch(1);
buttonLayout->addWidget(cancelButton);
buttonLayout->addWidget(backButton);
buttonLayout->addWidget(nextButton);
buttonLayout->addWidget(finishButton);
mainLayout = new QVBoxLayout;
mainLayout->addLayout(buttonLayout);
setLayout(mainLayout);
}
void ComplexWizard::setFirstPage(WizardPage *page)
{
page->resetPage();
history.append(page);
switchPage(0);
}
void ComplexWizard::backButtonClicked()
{
WizardPage *oldPage = history.takeLast();
oldPage->resetPage();
switchPage(oldPage);
}
void ComplexWizard::nextButtonClicked()
{
WizardPage *oldPage = history.last();
WizardPage *newPage = oldPage->nextPage();
newPage->resetPage();
history.append(newPage);
switchPage(oldPage);
}
void ComplexWizard::completeStateChanged()
{
WizardPage *currentPage = history.last();
if (currentPage->isLastPage())
finishButton->setEnabled(currentPage->isComplete());
else
nextButton->setEnabled(currentPage->isComplete());
}
void ComplexWizard::switchPage(WizardPage *oldPage)
{
if (oldPage) {
oldPage->hide();
mainLayout->removeWidget(oldPage);
disconnect(oldPage, SIGNAL(completeStateChanged()),
this, SLOT(completeStateChanged()));
}
WizardPage *newPage = history.last();
mainLayout->insertWidget(0, newPage);
newPage->show();
newPage->setFocus();
connect(newPage, SIGNAL(completeStateChanged()),
this, SLOT(completeStateChanged()));
backButton->setEnabled(history.size() != 1);
if (newPage->isLastPage()) {
nextButton->setEnabled(false);
finishButton->setDefault(true);
} else {
nextButton->setDefault(true);
finishButton->setEnabled(false);
}
completeStateChanged();
}
WizardPage::WizardPage(QWidget *parent)
: QWidget(parent)
{
hide();
}
void WizardPage::resetPage()
{
}
WizardPage *WizardPage::nextPage()
{
return 0;
}
bool WizardPage::isLastPage()
{
return false;
}
bool WizardPage::isComplete()
{
return true;
}