imageviewer.h Example File
widgets/imageviewer/imageviewer.h
/****************************************************************************
**
** Copyright (C) 2005-2005 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.
**
****************************************************************************/
#ifndef IMAGEVIEWER_H
#define IMAGEVIEWER_H
#include <QMainWindow>
#include <QPrinter>
class QAction;
class QLabel;
class QMenu;
class QScrollArea;
class QScrollBar;
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;
QPrinter printer;
QAction *openAct;
QAction *printAct;
QAction *exitAct;
QAction *zoomInAct;
QAction *zoomOutAct;
QAction *normalSizeAct;
QAction *fitToWindowAct;
QAction *aboutAct;
QAction *aboutQtAct;
QMenu *fileMenu;
QMenu *viewMenu;
QMenu *helpMenu;
};
#endif