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/**
* Manage the scene, which contains a single Graph, and respond to user input. This serves as
* the controller for the MVC (TikzDocument, TikzView, TikzScene).
*/
#ifndef TIKZSCENE_H
#define TIKZSCENE_H
#include "graph.h"
#include "nodeitem.h"
#include "edgeitem.h"
#include "tikzdocument.h"
#include <QWidget>
#include <QGraphicsScene>
#include <QPainter>
#include <QRectF>
#include <QVector>
#include <QGraphicsEllipseItem>
#include <QGraphicsSceneMouseEvent>
class TikzScene : public QGraphicsScene
{
Q_OBJECT
public:
TikzScene(TikzDocument *tikzDocument, QObject *parent);
~TikzScene();
Graph *graph();
QMap<Node*,NodeItem*> &nodeItems();
QMap<Edge*,EdgeItem*> &edgeItems();
void refreshAdjacentEdges(QList<Node*> nodes);
void setBounds(QRectF bounds);
TikzDocument *tikzDocument() const;
void setTikzDocument(TikzDocument *tikzDocument);
public slots:
void graphReplaced();
protected:
void mousePressEvent(QGraphicsSceneMouseEvent *event) override;
void mouseMoveEvent(QGraphicsSceneMouseEvent *event) override;
void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override;
void keyReleaseEvent(QKeyEvent *event) override;
private:
TikzDocument *_tikzDocument;
QMap<Node*,NodeItem*> _nodeItems;
QMap<Edge*,EdgeItem*> _edgeItems;
QGraphicsLineItem *_drawEdgeItem;
EdgeItem *_modifyEdgeItem;
bool _firstControlPoint;
QMap<Node*,QPointF> _oldNodePositions;
float _oldWeight;
int _oldBend;
int _oldInAngle;
int _oldOutAngle;
void getSelection(QSet<Node*> &selNodes, QSet<Edge*> &selEdges);
};
#endif // TIKZSCENE_H
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