multipagewidget.cpp Example File

 /****************************************************************************
 **
 ** Copyright (C) 2015 The Qt Company Ltd.
 ** Contact: http://www.qt.io/licensing/
 **
 ** This file is part of the examples of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:BSD$
 ** You may use this file under the terms of the BSD license as follows:
 **
 ** "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 The Qt Company Ltd 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."
 **
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 #include <QtGui>

 #include "multipagewidget.h"

 MultiPageWidget::MultiPageWidget(QWidget *parent)
     : QWidget(parent)
 {
     comboBox = new QComboBox();
     comboBox->setObjectName("__qt__passive_comboBox");
     stackWidget = new QStackedWidget();

     connect(comboBox, SIGNAL(activated(int)),
             this, SLOT(setCurrentIndex(int)));

     layout = new QVBoxLayout();
     layout->addWidget(comboBox);
     layout->addWidget(stackWidget);
     setLayout(layout);
 }

 QSize MultiPageWidget::sizeHint() const
 {
     return QSize(200, 150);
 }

 void MultiPageWidget::addPage(QWidget *page)
 {
     insertPage(count(), page);
 }

 void MultiPageWidget::removePage(int index)
 {
     QWidget *widget = stackWidget->widget(index);
     stackWidget->removeWidget(widget);

     comboBox->removeItem(index);
 }

 int MultiPageWidget::count() const
 {
     return stackWidget->count();
 }

 int MultiPageWidget::currentIndex() const
 {
     return stackWidget->currentIndex();
 }

 void MultiPageWidget::insertPage(int index, QWidget *page)
 {
     page->setParent(stackWidget);

     stackWidget->insertWidget(index, page);

     QString title = page->windowTitle();
     if (title.isEmpty()) {
         title = tr("Page %1").arg(comboBox->count() + 1);
         page->setWindowTitle(title);
     }
     comboBox->insertItem(index, title);
 }

 void MultiPageWidget::setCurrentIndex(int index)
 {
     if (index != currentIndex()) {
         stackWidget->setCurrentIndex(index);
         comboBox->setCurrentIndex(index);
         emit currentIndexChanged(index);
     }
 }

 QWidget* MultiPageWidget::widget(int index)
 {
     return stackWidget->widget(index);
 }

 QString MultiPageWidget::pageTitle() const
 {
     if (const QWidget *currentWidget = stackWidget->currentWidget())
         return currentWidget->windowTitle();
     return QString();
 }

 void MultiPageWidget::setPageTitle(QString const &newTitle)
 {
     comboBox->setItemText(currentIndex(), newTitle);
     if (QWidget *currentWidget = stackWidget->currentWidget())
         currentWidget->setWindowTitle(newTitle);
     emit pageTitleChanged(newTitle);
 }