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/***************************************************************************
SocNetV: Social Networks Visualizer
version: 0.90
Written in Qt 4.4
node.h - description
-------------------
copyright : (C) 2005-2010 by Dimitris B. Kalamaras
email : dimitris.kalamaras@gmail.com
***************************************************************************/
/*******************************************************************************
* This program is free software: you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>. *
********************************************************************************/
#ifndef NODE_H
#define NODE_H
using namespace std;
#include <QGraphicsItem>
#include <QObject>
#include <QPolygon>
class GraphicsWidget;
class QGraphicsSceneMouseEvent;
class Edge;
class NodeLabel;
class NodeNumber;
static const int TypeNode = QGraphicsItem::UserType+1;
/**
* This is actually a container-class.
* Contains the graphical objects called Nodes,
* which are displayed as triangles, boxes, circles, etc, on the canvas.
* Each node "knows" the others with which she is connected.
*/
//
class Node : public QObject, public QGraphicsItem {
Q_OBJECT
Q_INTERFACES (QGraphicsItem)
public:
Node(GraphicsWidget*, int num, int size, QString col, QString shape, bool, int, int, QPointF p) ;
// ~Node();
enum { Type = UserType + 1 };
int type() const { return Type; }
void calculateForcesSpringEmbedder(bool dynamicMovement);
void calculateForcesFruchterman(bool dynamicMovement);
QRectF boundingRect() const;
QPainterPath shape() const;
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
void die();
long int nodeNumber() {return m_num;}
void setSize(int);
int size();
void setShape (QString);
QString nodeShape() {return m_shape;}
void setColor(QString str);
void setColor(QColor color);
QString color ();
void setLabelText ( QString label) ; // Used by MW:: slotChangeNodeLabel()
QString labelText () ; // Used by GW:: hasNode()
NodeLabel* label();
void addLabel (NodeLabel* gfxLabel ) ;
void deleteLabel();
void clearLabel();
void addInLink( Edge *edge ) ;
void deleteInLink(Edge*);
void addOutLink( Edge *edge ) ;
void deleteOutLink(Edge*);
void setNumberInside(bool);
void addNumber (NodeNumber *gfxNum ) ;
void deleteNumber();
void toggleAntialiasing(bool);
protected:
QVariant itemChange(GraphicsItemChange change, const QVariant &value);
void mousePressEvent(QGraphicsSceneMouseEvent *event);
void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
signals:
void nodeClicked(Node*);
void startNodeMovement(int);
void openNodeContextMenu();
void startEdge(Node *);
void adjustOutEdge();
void adjustInEdge();
void removeOutEdge();
void removeInEdge();
private:
GraphicsWidget *graphicsWidget;
QPainterPath *m_path;
QPointF newPos;
QPolygon *m_poly_t, *m_poly_d;
int m_size, m_nd, m_ld;
long int m_num;
QString m_shape, m_col_str, m_labelIn;
QColor m_col;
bool m_hasNumber, m_hasLabel, m_isNumberInside;
/**Lists of elements attached to this node */
list<Edge*> inEdgeList, outEdgeList;
list<NodeNumber*> gfxNumberList;
NodeLabel *m_label;
NodeNumber *m_number;
};
#endif
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