editor/item.h

#ifndef ITEM_H
#define ITEM_H

#include <QGraphicsObject>
#include <QColor>
#include <QList>
#include <QAction>

class Connection;

class Item : public QGraphicsObject
{
    Q_OBJECT
public:
    enum AnchorType { Left, Right };
    explicit Item(const QString &type, QGraphicsItem *parent = nullptr);

    QRectF boundingRect() const override;
    QPointF anchorPos(AnchorType type) const;
    void addConnection(Connection* conn);
    void removeConnection(Connection* conn);
    QList<Connection*> connections();
    QString itemType();
    virtual bool setRegisterId(const QString& id);
    QString registerId() const { return registerId_; }
    virtual void setRegisterValue(const QString& registerId, quint16 value);
    quint16 registerValue() const { return registerValue_; }
    virtual QStringList resetRegister();

    virtual void setCompare(QString) {}

    // 添加状态属性（用于线圈、触点等）
    virtual bool state() const { return false; }


signals:
    void requestCopy(Item*);
    void requestDelete(Item*);
    void requestBindRegister(Item*);
    void requestCompare(Item*);
    void requestReset(Item*);

protected:
    void MenuActions(QMenu *menu);
    virtual void addMenuActions(QMenu *menu);
    virtual void handleMenuAction(QAction *action);
    QVariant itemChange(GraphicsItemChange change, const QVariant &value) override;
    void contextMenuEvent(QGraphicsSceneContextMenuEvent *event) override;
    QString type_;
    QList<Connection*> connections_;
    QString registerId_;
    quint16 registerValue_ = 0;
};

#endif // ITEM_H