fix: add missing override keywords and virtual destructor to resolve all compiler warnings

- Mark 27 overriding functions with 'override' across GraphicsItemGroup,
    GraphicsRectItem, and GraphicPolygonItem headers
  - Add virtual destructor to IPropertyHandleImpl (fixes -Wdelete-abstract-non-virtual-dtor)
  - Build is now 0 warnings, 0 errors

PropertyEditor/source/include/PropertyHandleImpl/IPropertyHandleImpl.h

@@ -20,6 +20,9 @@ public:
 		Enum,
 		Object,
 	};
+public:
+	virtual ~IPropertyHandleImpl() = default;
+
 protected:
 	IPropertyHandleImpl(QPropertyHandle* inHandle);
 	virtual QQuickItem* createNameEditor(QQuickItem* inParent);

include/graphicsItem/graphicsItemGroup.h

@@ -11,13 +11,13 @@ public:
     GraphicsItemGroup(QGraphicsItem *parent = 0);
     virtual ~GraphicsItemGroup();
 
-    void resize(int,double, double, const QPointF&);
-    void updateCoordinate();
+    void resize(int,double, double, const QPointF&) override;
+    void updateCoordinate() override;
 
-    void createOperationCopy();
-    void removeOperationCopy();
-    void moveOperationCopy(const QPointF&);
-    void rotateOperationCopy(const double&);
+    void createOperationCopy() override;
+    void removeOperationCopy() override;
+    void moveOperationCopy(const QPointF&) override;
+    void rotateOperationCopy(const double&) override;
     QJsonObject serialize() const override;
     static QGraphicsItem *createFromJson(const QJsonObject &obj);
 
@@ -25,11 +25,11 @@ public:
     //QList<QGraphicsItem*> getItems() {return m_listItem;}
 
 protected:
-    virtual QPainterPath shape();
-    virtual void paint(QPainter*, const QStyleOptionGraphicsItem*, QWidget*);
-    virtual void contextMenuEvent(QGraphicsSceneContextMenuEvent*);
-    virtual QVariant itemChange(QGraphicsItem::GraphicsItemChange, const QVariant&);
-    virtual void syncRotationDataFromParent(const double&);
+    QPainterPath shape() override;
+    void paint(QPainter*, const QStyleOptionGraphicsItem*, QWidget*) override;
+    void contextMenuEvent(QGraphicsSceneContextMenuEvent*) override;
+    QVariant itemChange(QGraphicsItem::GraphicsItemChange, const QVariant&) override;
+    void syncRotationDataFromParent(const double&) override;
 
 private:
     QRectF        m_lastBoudingRect; //记录上一时刻的boundingRect

include/graphicsItem/graphicsPolygonItem.h

@@ -11,24 +11,24 @@ public:
     GraphicPolygonItem(QGraphicsItem *parent = 0);
     virtual ~GraphicPolygonItem();
 
-    void resize(int,double, double, const QPointF&);
-    void updateCoordinate();
-    void move(const QPointF&);
+    void resize(int,double, double, const QPointF&) override;
+    void updateCoordinate() override;
+    void move(const QPointF&) override;
     QJsonObject serialize() const override;
     static QGraphicsItem *createFromJson(const QJsonObject &obj);
-    void editShape(int, const QPointF&);
+    void editShape(int, const QPointF&) override;
 
-    void addPoint(const QPointF&);
-    bool endDrawing();
+    void addPoint(const QPointF&) override;
+    bool endDrawing() override;
     QPolygonF getPoints(void) { return m_points; }
 
 protected:
-    virtual QPainterPath shape();
-    virtual QRectF boundingRect();
-    virtual void paint(QPainter*, const QStyleOptionGraphicsItem*, QWidget*);
+    QPainterPath shape() override;
+    QRectF boundingRect();
+    void paint(QPainter*, const QStyleOptionGraphicsItem*, QWidget*) override;
 
 private:
-    virtual void updateHandles();
+    void updateHandles() override;
 
     QPolygonF   m_lastPoints; //记录上一时刻的点集数据，用于缩放等操作
     QPolygonF   m_points;

include/graphicsItem/graphicsRectItem.h

@@ -11,24 +11,24 @@ public:
     GraphicsRectItem(const QRect &rect, bool isRound = false, QGraphicsItem *parent = 0);
     virtual ~GraphicsRectItem();
 
-    void resize(int,double, double, const QPointF&);
-    void updateCoordinate();
+    void resize(int,double, double, const QPointF&) override;
+    void updateCoordinate() override;
     bool isRound() const { return m_bIsRound; }
     double ratioX() const { return m_dRatioX; }
     double ratioY() const { return m_dRatioY; }
     void setRatioX(double rx) { m_dRatioX = rx; }
     void setRatioY(double ry) { m_dRatioY = ry; }
-    void move(const QPointF&);
+    void move(const QPointF&) override;
     QJsonObject serialize() const override;
     static QGraphicsItem *createFromJson(const QJsonObject &obj);
-    void editShape(int, const QPointF&);
+    void editShape(int, const QPointF&) override;
 
 protected:
-    virtual QPainterPath shape();
-    virtual void paint(QPainter*, const QStyleOptionGraphicsItem*, QWidget*);
+    QPainterPath shape() override;
+    void paint(QPainter*, const QStyleOptionGraphicsItem*, QWidget*) override;
 
 private:
-    virtual void updateHandles();
+    void updateHandles() override;
 
     QRectF  m_lastBoudingRect; //记录上一时刻的boundingRect
     bool    m_bIsRound; //是否为圆角矩形