graphicsnode.h

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/***************************************************************************
 SocNetV: Social Network Visualizer
 version: 3.0.2
 Written in Qt
 
 graphicsnode.h - description
 -------------------
 copyright : (C) 2005-2021 by Dimitris B. Kalamaras
 project site : https://socnetv.org
 
 ***************************************************************************/
 
/*******************************************************************************
* 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 GRAPHICSNODE_H
#define GRAPHICSNODE_H
 
 
#include <QGraphicsItem>
#include <QObject>
#include <QPolygon>
 
class GraphicsWidget;
class QGraphicsSceneMouseEvent;
class GraphicsEdge;
class GraphicsNodeLabel;
class GraphicsNodeNumber;
 
using namespace std;
 
static const int TypeNode = QGraphicsItem::UserType+1;
static const int ZValueNode = 100;
static const int ZValueNodeHighlighted = 110;
 
 
 
//
 
class GraphicsNode : public QObject, public QGraphicsItem {
 Q_OBJECT
 Q_INTERFACES (QGraphicsItem)
 
public:
 
 GraphicsNode ( GraphicsWidget* gw,
 const int &num,
 const int &size,
 const QString &color,
 const QString &shape,
 const QString &iconPath,
 const bool &showNumbers,
 const bool &numbersInside,
 const QString &numberColor,
 const int &numberSize,
 const int &numDistance,
 const bool &showLabels,
 const QString &label,
 const QString &labelColor,
 const int &labelSize,
 const int &labelDistance,
 const bool &edgeHighlighting,
 QPointF p
 );
 
 ~GraphicsNode();
 
 enum { Type = UserType + 1 };
 int type() const { return Type; }
 
 QRectF boundingRect() const;
 QPainterPath shape() const;
 void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
 
 int nodeNumber() {return m_num;}
 
 void addInLink( GraphicsEdge *edge ) ;
 void deleteInLink(GraphicsEdge*);
 void addOutLink( GraphicsEdge *edge ) ;
 void deleteOutLink(GraphicsEdge*);
 
 void setSize(const int &);
 int size() const;
 
 void setShape (const QString, const QString &iconPath=QString());
 QString nodeShape() {return m_shape;}
 
 void setColor(const QString &colorStr);
 void setColor(QColor color);
 QString color ();
 
 void addLabel();
 GraphicsNodeLabel* label();
 void deleteLabel();
 void setLabelVisibility(const bool &toggle);
 void setLabelSize(const int &size);
 void setLabelText ( const QString &label) ;
 void setLabelColor (const QString &color) ;
 QString labelText();
 void setLabelDistance(const int &distance);
 
 void addNumber () ;
 GraphicsNodeNumber* number();
 void deleteNumber();
 void setNumberVisibility(const bool &toggle);
 void setNumberInside(const bool &toggle);
 void setNumberSize(const int &size);
 void setNumberDistance(const int &distance);
 void setNumberColor(const QString &color);
 
 void setEdgeHighLighting(const bool &toggle) ;
 
 
protected:
 
 QVariant itemChange(GraphicsItemChange change, const QVariant &value);
// void mousePressEvent(QGraphicsSceneMouseEvent *event);
// void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
// void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
// void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
 
signals: 
 
 void nodeClicked(GraphicsNode*);
 void startEdge(GraphicsNode *);
 void adjustOutEdge();
 void adjustInEdge();
 void removeOutEdge();
 void removeInEdge();
 
 
private:
 
 GraphicsWidget *graphicsWidget;
 QPainterPath m_path;
 QPointF newPos;
 QPolygonF *m_poly_t;
 int m_size, m_size_orig;
 int m_state;
 int m_numSize;
 int m_labelSize;
 int m_numberDistance;
 int m_labelDistance;
 int m_num;
 QString m_shape, m_iconPath;
 QString m_col_str, m_numColor, m_labelText, m_labelColor;
 QColor m_col, m_col_orig;
 bool m_hasNumber, m_hasLabel, m_hasNumberInside, m_edgeHighLighting;
 list<GraphicsEdge*> inEdgeList, outEdgeList;
 GraphicsNodeLabel *m_label;
 GraphicsNodeNumber *m_number;
};
 
#endif