PDF Viewer Example

 /****************************************************************************
 **
 ** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB).
 ** Contact: http://www.qt.io/licensing/
 **
 ** This file is part of the QtPDF module of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:LGPL3$
 ** Commercial License Usage
 ** Licensees holding valid commercial Qt licenses may use this file in
 ** accordance with the commercial license agreement provided with the
 ** Software or, alternatively, in accordance with the terms contained in
 ** a written agreement between you and The Qt Company. For licensing terms
 ** and conditions see http://www.qt.io/terms-conditions. For further
 ** information use the contact form at http://www.qt.io/contact-us.
 **
 ** GNU Lesser General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU Lesser
 ** General Public License version 3 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.LGPLv3 included in the
 ** packaging of this file. Please review the following information to
 ** ensure the GNU Lesser General Public License version 3 requirements
 ** will be met: https://www.gnu.org/licenses/lgpl.html.
 **
 ** GNU General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU
 ** General Public License version 2.0 or later as published by the Free
 ** Software Foundation and appearing in the file LICENSE.GPL included in
 ** the packaging of this file. Please review the following information to
 ** ensure the GNU General Public License version 2.0 requirements will be
 ** met: http://www.gnu.org/licenses/gpl-2.0.html.
 **
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 #ifndef PAGESELECTOR_H
 #define PAGESELECTOR_H

 #include <QWidget>

 class QLabel;
 class QLineEdit;
 class QPdfDocument;
 class QPdfPageNavigation;
 class QToolButton;

 class PageSelector : public QWidget
 {
     Q_OBJECT

 public:
     explicit PageSelector(QWidget *parent = nullptr);

     void setPageNavigation(QPdfPageNavigation *pageNavigation);

 private slots:
     void onCurrentPageChanged(int page);
     void pageNumberEdited();

 private:
     QPdfPageNavigation *m_pageNavigation;

     QLineEdit *m_pageNumberEdit;
     QLabel *m_pageCountLabel;
     QToolButton *m_previousPageButton;
     QToolButton *m_nextPageButton;
 };

 #endif // PAGESELECTOR_H