graphwidget.h Example File
graphicsview/elasticnodes/graphwidget.h
/****************************************************************************
**
** Copyright (C) 2006-2006 Trolltech ASA. All rights reserved.
**
** This file is part of the example classes 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.
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** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** information about Qt Commercial License Agreements.
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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#ifndef GRAPHWIDGET_H
#define GRAPHWIDGET_H
#include <QtGui/QGraphicsView>
class Node;
class GraphWidget : public QGraphicsView
{
Q_OBJECT
public:
GraphWidget();
void itemMoved();
protected:
void keyPressEvent(QKeyEvent *event);
void timerEvent(QTimerEvent *event);
void wheelEvent(QWheelEvent *event);
void drawBackground(QPainter *painter, const QRectF &rect);
void scaleView(qreal scaleFactor);
private:
int timerId;
Node *centerNode;
};
#endif