#ifndef DIAGRAMSCENE_H
#define DIAGRAMSCENE_H

#include <QObject>
#include "rectitem.h"
#include "lineitem.h"
#include "textitem.h"
#include "mainwindow.h"
#include "ellipseitem.h"


#include <QGraphicsScene>

QT_BEGIN_NAMESPACE
class QGraphicsPolygonItem;

class QGraphicsScene;

class QGraphicsSceneMouseEvent;

class QPaintEvent;

class QPointF;

class QWidget;

QT_END_NAMESPACE


class DiagramScene
        : public QGraphicsScene
{
Q_OBJECT

public:
    enum Mode
    {
        InsertCircleItem, InsertRectItem, InsertLineItem, InsertTextItem, MoveItem
    };

    DiagramScene(QObject *parent = nullptr);

    void setMode(Mode mode);

    void setStartPoint(QPointF point);

    void setItemColor(const QColor &color);

    void setLineColor(const QColor &color);

    void setLineWidth(const int width);

    void setTextColor(const QColor &color);

    void setFont(const QFont &font);

    QFont font() const
    { return myTextFont; }

    GroupItem *myCreatItemGroup(const QList<QGraphicsItem *> &items);

    void myDestroyItemGroup(GroupItem *group);

public slots:

    void cut();

    void copy();

    void paste();


    bool writeFile(QFile &file);

    bool readFile(QFile &file);

    void editorLostFocus(TextItem *item);

signals:

    void itemSelected(QGraphicsItem *item);

protected:
    void mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent);

    void mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent);

    void mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent);

private:
    bool isItemChange(int type);

    QColor myItemColor;
    QColor myLineColor;
    int myLineWidth;
    EllipseItem *circle;
    RectItem *Rect;
    LineItem *line;
    TextItem *textItem;
    QPointF startPoint;
    Mode myMode;
    QColor myTextColor;
    QFont myTextFont;
//signals:
    //void itemMoved(DiagramItem *movedItem,const QPointF &movedFromPosition);

};

#endif // DIAGRAMSCENE_H