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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** 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 Nokia Corporation and its Subsidiary(-ies) 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."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef IMAGEVIEWER_H
+#define IMAGEVIEWER_H
+
+#include <QMainWindow>
+#include <QPrinter>
+
+QT_BEGIN_NAMESPACE
+class QAction;
+class QLabel;
+class QMenu;
+class QScrollArea;
+class QScrollBar;
+QT_END_NAMESPACE
+
+//! [0]
+class ImageViewer : public QMainWindow
+{
+ Q_OBJECT
+
+public:
+ ImageViewer();
+
+private slots:
+ void open();
+ void print();
+ void zoomIn();
+ void zoomOut();
+ void normalSize();
+ void fitToWindow();
+ void about();
+
+private:
+ void createActions();
+ void createMenus();
+ void updateActions();
+ void scaleImage(double factor);
+ void adjustScrollBar(QScrollBar *scrollBar, double factor);
+
+ QLabel *imageLabel;
+ QScrollArea *scrollArea;
+ double scaleFactor;
+
+#ifndef QT_NO_PRINTER
+ QPrinter printer;
+#endif
+
+ QAction *openAct;
+ QAction *printAct;
+ QAction *exitAct;
+ QAction *zoomInAct;
+ QAction *zoomOutAct;
+ QAction *normalSizeAct;
+ QAction *fitToWindowAct;
+ QAction *aboutAct;
+ QAction *aboutQtAct;
+
+ QMenu *fileMenu;
+ QMenu *viewMenu;
+ QMenu *helpMenu;
+};
+//! [0]
+
+#endif