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/***************************************************************************
*
* Copyright (C) 2005 Elad Lahav (elad_lahav@users.sourceforge.net)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
***************************************************************************/
#ifndef GRAPHNODE_H
#define GRAPHNODE_H
#include <qcanvas.h>
#include <qdict.h>
#include "graphedge.h"
/**
* A canvas item that draws the name of a function insider a filled rectangle.
* This item represents a function in the call graph.
* @author Elad Lahav
*/
class GraphNode : public QCanvasPolygon
{
public:
GraphNode(QCanvas* pCanvas, const QString&, bool bMultiCall = false);
~GraphNode();
GraphEdge* addOutEdge(GraphNode*);
void dfs();
void removeOutEdges();
void removeInEdges();
void getFirstNeighbour(GraphNode*&, bool&);
/**
* @param rect The bounding rectangle of the node
*/
void setRect(const QRect& rect);
/**
* @param font The font to use for drawing the text
*/
void setFont(const QFont& font) { m_font = font; }
/**
* @return The name of the function
*/
const QString& getFunc() const { return m_sFunc; }
/**
* @return true for a multiple-call node, false otherwise
*/
bool isMultiCall() { return m_bMultiCall; }
/**
* @return The set of outgoing edges
*/
QDict<GraphEdge>& getOutEdges() { return m_dictOutEdges; }
/**
* @return true if this node was already visited during the current DFS,
* false otherwise
*/
bool dfsVisited() { return m_bDfsFlag; }
/**
* Clears the 'DFS-visited' flag, in preparation for the next DFS.
*/
void dfsReset() { m_bDfsFlag = false; }
/** Identifies this class among other QCanvasItem classes. */
static int RTTI;
/**
* @return The class identifier
*/
virtual int rtti() const { return RTTI; }
protected:
virtual void drawShape(QPainter&);
private:
/** Function name. */
QString m_sFunc;
/** A list of outgoing edges indexed by destination. */
QDict<GraphEdge> m_dictOutEdges;
/** A list of incoming edges indexed by destination. */
QDict<GraphEdge> m_dictInEdges;
/** The bounding rectangle for the node. */
QRect m_rect;
/** The font to use for drawing the text. */
QFont m_font;
/** true for a multiple-call node, false otherwise. */
bool m_bMultiCall;
/** Determines whether this node was visited during a depth-first
search. */
bool m_bDfsFlag;
};
#endif
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