2010-10-22 16:47:08 -04:00
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/****************************************************************************
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**
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: Qt Software Information (qt-info@nokia.com)
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**
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** This file is part of the example classes of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial Usage
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Nokia.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain
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** additional rights. These rights are described in the Nokia Qt LGPL
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** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
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** package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** If you are unsure which license is appropriate for your use, please
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** contact the sales department at qt-sales@nokia.com.
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef GRAPHWIDGET_H
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#define GRAPHWIDGET_H
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#include <QtGui/QGraphicsView>
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class Node;
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class GraphWidget : public QGraphicsView
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{
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Q_OBJECT
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public:
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GraphWidget(QWidget * = NULL);
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typedef int NodeId ;
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typedef int EdgeId ;
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typedef enum {
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ELASTIC_NODE_FLAG_OWN = 0x0001,
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ELASTIC_NODE_FLAG_FRIEND = 0x0002,
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ELASTIC_NODE_FLAG_AUTHED = 0x0004,
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ELASTIC_NODE_FLAG_MARGINALAUTH = 0x0008
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} NodeFlags ;
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virtual void itemMoved();
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NodeId addNode(const std::string& NodeText,uint32_t flags) ;
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EdgeId addEdge(NodeId n1,NodeId n2) ;
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void clearGraph() ;
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protected:
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void keyPressEvent(QKeyEvent *event);
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void timerEvent(QTimerEvent *event);
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void wheelEvent(QWheelEvent *event);
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void drawBackground(QPainter *painter, const QRectF &rect);
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void scaleView(qreal scaleFactor);
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private:
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int timerId;
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//Node *centerNode;
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bool mDeterminedBB ;
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std::vector<Node *> _nodes ;
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std::vector<Node *> _edges ;
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};
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#endif
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