CSharp: State Pattern

 

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/// <summary> ///empty base class containing State methods to override /// State Patterns状态模式 ///20220918 /// geovindu,Geovin Du,涂聚文 /// </summary> public class State {     //keeps state of each button     protected Mediator med;     public State(Mediator md)     {         med = md;   //save reference to mediator     }     public virtual void mouseDown(int x, int y) { }     public virtual void mouseUp(int x, int y) { }     public virtual void mouseDrag(int x, int y) { }     public virtual void selectOne(Drawing d) { } }

　　

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/// <summary>  /// Summary description for RectState.  /// State Patterns状态模式  ///20220918  /// geovindu,Geovin Du,涂聚文  /// </summary>  public class RectState : State  {      public RectState(Mediator md) : base(md) { }      //-----      public override void mouseDown(int x, int y)      {          VisRectangle vr = new VisRectangle(x, y);          med.addDrawing(vr);      }  }

　　

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/// <summary>  /// Summary description for StateManager.  /// State Patterns状态模式  ///20220918  /// geovindu,Geovin Du,涂聚文  /// </summary>  public class StateManager  {      private State currentState;      private RectState rState;      private ArrowState aState;      private CircleState cState;      private FillState fState;      /// <summary>      ///      /// </summary>      /// <param name="med"></param>      public StateManager(Mediator med)      {          //create an instance of each state          rState = new RectState(med);          cState = new CircleState(med);          aState = new ArrowState(med);          fState = new FillState(med);          //and initialize them          //set default state          currentState = aState;      }        /// <summary>      /// These methods are called when the toolbuttons are clicked      /// </summary>      public void setRect()      {          currentState = rState;      }      /// <summary>      ///      /// </summary>      public void setCircle()      {          currentState = cState;      }      /// <summary>      ///      /// </summary>      public void setFill()      {          currentState = fState;      }      /// <summary>      ///      /// </summary>      public void setArrow()      {          currentState = aState;      }      /// <summary>      ///      /// </summary>      /// <param name="x"></param>      /// <param name="y"></param>      public void mouseDown(int x, int y)      {          currentState.mouseDown(x, y);      }      /// <summary>      ///      /// </summary>      /// <param name="x"></param>      /// <param name="y"></param>      public void mouseUp(int x, int y)      {          currentState.mouseUp(x, y);      }      /// <summary>      ///      /// </summary>      /// <param name="x"></param>      /// <param name="y"></param>      public void mouseDrag(int x, int y)      {          currentState.mouseDrag(x, y);      }      /// <summary>      ///      /// </summary>      /// <param name="d"></param>      public void selectOne(Drawing d)      {          currentState.selectOne(d);      }    }

　　

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/// <summary> /// interface defining Drawing object /// State Patterns状态模式 ///20220918 /// geovindu,Geovin Du,涂聚文 /// </summary> public interface Drawing {     void setSelected(bool b);     void draw(Graphics g);     void move(int xpt, int ypt);     bool contains(int x, int y);     void setFill(bool b);     Rectangle getRects();     void setRects(Rectangle rect); }

　　

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/// <summary>   /// Summary description for Rectangle.   /// State Patterns状态模式   ///20220918   /// geovindu,Geovin Du,涂聚文   /// </summary>   public class Rectangle   {         /// <summary>       ///       /// </summary>       private int xp, yp, wr, hr;       /// <summary>       ///       /// </summary>       /// <param name="x"></param>       /// <param name="y"></param>       /// <param name="w"></param>       /// <param name="h"></param>       public Rectangle(int x, int y, int w, int h)       {           xp = x;           yp = y;           wr = w;           hr = h;       }       /// <summary>       ///       /// </summary>       /// <param name="x"></param>       /// <param name="y"></param>       /// <param name="w"></param>       /// <param name="h"></param>       public Rectangle(float x, float y, float w, float h)       {           xp = (int)x;           yp = (int)y;           wr = (int)w;           hr = (int)h;       }       /// <summary>       ///       /// </summary>       /// <param name="x"></param>       /// <param name="y"></param>       /// <returns></returns>       public bool contains(int x, int y)       {           bool cn = xp <= x && x <= xp + wr;           cn = cn && yp <= y && y <= yp + hr;           return cn;       }       /// <summary>       ///       /// </summary>       public int x       {           get           {               return xp;           }           set           {               xp = value;           }       }       /// <summary>       ///       /// </summary>       public int y       {           get           {               return yp;           }           set           {               yp = value;           }       }       /// <summary>       ///       /// </summary>       public int w       {           get           {               return wr;           }           set           {               wr = value;           }       }       /// <summary>       ///       /// </summary>       public int h       {           get           {               return hr;           }           set           {               hr = value;           }       }   }

　　

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/// <summary>    /// Summary description for VisCircle.    /// State Patterns状态模式    ///20220918    /// geovindu,Geovin Du,涂聚文    /// </summary>    public class VisCircle : VisRectangle    {        private int r;        /// <summary>        ///        /// </summary>        /// <param name="x"></param>        /// <param name="y"></param>        public VisCircle(int x, int y)            : base(x, y)        {            r = 15; w = 30; h = 30;            saveAsRect();        }        /// <summary>        ///        /// </summary>        /// <param name="g"></param>        public override void draw(Graphics g)        {            if (filled)            {                g.FillEllipse(rBrush, x, y, w, h);            }            g.DrawEllipse(bPen, x, y, w, h);            if (selected)            {                drawHandles(g);            }        }    }

　　

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/// <summary> /// Summary description for Memento. /// State Patterns状态模式 ///20220918 /// geovindu,Geovin Du,涂聚文 /// </summary> public interface Memento {     void restore(); }

　　

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/// <summary>  /// Summary description for Mediator.\  /// State Patterns状态模式  ///20220918  /// geovindu,Geovin Du,涂聚文  /// </summary>  public class Mediator  {      private bool startRect;      private int selectedIndex;      private RectButton rectb;      private bool dSelected;      private ArrayList drawings;      private ArrayList undoList;      private RectButton rButton;      private FillButton filButton;      private CircleButton circButton;      private PickButton arrowButton;      private PictureBox canvas;      private int selectedDrawing;      private StateManager stMgr;      /// <summary>      ///      /// </summary>      /// <param name="pic"></param>      public Mediator(PictureBox pic)      {          startRect = false;          dSelected = false;          drawings = new ArrayList();          undoList = new ArrayList();          stMgr = new StateManager(this);          canvas = pic;          selectedDrawing = -1;      }      /// <summary>      ///      /// </summary>      public void startRectangle()      {          stMgr.setRect();          arrowButton.setSelected(false);          circButton.setSelected(false);          filButton.setSelected(false);      }      /// <summary>      ///      /// </summary>      public void startCircle()      {          stMgr.setCircle();          rectb.setSelected(false);          arrowButton.setSelected(false);          filButton.setSelected(false);      }      /// <summary>      ///      /// </summary>      public void startFill()      {          stMgr.setFill();          rectb.setSelected(false);          circButton.setSelected(false);          arrowButton.setSelected(false);          if (selectedDrawing >= 0)          {              stMgr.selectOne(getDrawing(selectedDrawing));              FillMemento m = new FillMemento(selectedDrawing, this);              undoList.Add(m);          }          repaint();      }      /// <summary>      ///      /// </summary>      public void startArrow()      {          stMgr.setArrow();          rectb.setSelected(false);          circButton.setSelected(false);          filButton.setSelected(false);      }      /// <summary>      ///      /// </summary>      /// <returns></returns>      public Drawing getSelected()      {          return (Drawing)drawings[selectedDrawing];      }      /// <summary>      ///      /// </summary>      /// <param name="index"></param>      public void setSelected(int index)      {          dSelected = true;          selectedDrawing = index;          Drawing d = getDrawing(index);          d.setSelected(true);          repaint();      }      /// <summary>      ///      /// </summary>      public void fillSelected()      {          if (dSelected)          {              Drawing d = (Drawing)drawings[selectedDrawing];              d.setFill(true);              FillMemento m = new FillMemento(selectedDrawing, this);              undoList.Add(m);          }      }      /// <summary>      ///      /// </summary>      public void undo()      {          rectb.setSelected(false);          circButton.setSelected(false);          arrowButton.setSelected(false);            if (undoList.Count > 0)          {              //get last element in undo list              object obj = undoList[undoList.Count - 1];              undoList.RemoveAt(undoList.Count - 1);              //get the Memento              Memento m = (Memento)obj;              m.restore();   //and restore the old position              repaint();          }      }      /// <summary>      ///      /// </summary>      /// <returns></returns>      public ArrayList getDrawings()      {          return drawings;      }      /// <summary>      ///      /// </summary>      /// <param name="a"></param>      /// <returns></returns>      public Drawing getDrawing(int a)      {          if (a < drawings.Count)              return (Drawing)drawings[a];          else              return null;      }      /// <summary>      ///      /// </summary>      /// <param name="d"></param>      public void addDrawing(Drawing d)      {          drawings.Add(d);          DrawInstance intc = new DrawInstance(drawings.Count - 1, this);          undoList.Add(intc);      }      /// <summary>      ///      /// </summary>      public void clear()      {          drawings = new ArrayList();          undoList = new ArrayList();          dSelected = false;          selectedDrawing = 0;          repaint();      }      /// <summary>      ///      /// </summary>      public void unpick()      {          dSelected = false;          if (selectedDrawing >= 0)          {              Drawing d = getDrawing(selectedDrawing);              if (d != null)              {                  d.setSelected(false);              }              selectedDrawing = -1;              repaint();          }      }      /// <summary>      ///      /// </summary>      private void repaint()      {          canvas.Refresh();      }        /// <summary>      ///      /// </summary>      /// <param name="rb"></param>      public void registerRectButton(RectButton rb)      {          rectb = rb;      }      /// <summary>      ///      /// </summary>      /// <param name="fb"></param>      public void registerFillButton(FillButton fb)      {          filButton = fb;      }        /// <summary>      ///      /// </summary>      /// <param name="ab"></param>      public void registerArrowButton(PickButton ab)      {          arrowButton = ab;      }      /// <summary>      ///      /// </summary>      /// <param name="cb"></param>      public void registerCircleButton(CircleButton cb)      {          circButton = cb;      }      /// <summary>      ///      /// </summary>      /// <param name="a"></param>      public void removeDrawing(int a)      {          drawings.RemoveAt(a);      }      /// <summary>      ///      /// </summary>      /// <param name="x"></param>      /// <param name="y"></param>      /// <returns></returns>      public int findDrawing(int x, int y)      {          int i = 0;          bool found = false;          int index = -1;          while (i < drawings.Count && !found)          {              Drawing d = getDrawing(i);              if (d.contains(x, y))              {                  index = i;                  found = true;              }              i++;          }          return index;      }      /// <summary>      ///      /// </summary>      public void rememberPosition()      {          if (dSelected)          {              Drawing d = (Drawing)drawings[selectedDrawing];              Memento m = new DrawMemento(d);              undoList.Add(m);          }      }      /// <summary>      ///      /// </summary>      /// <param name="x"></param>      /// <param name="y"></param>      public void mouseUp(int x, int y)      {          stMgr.mouseUp(x, y);      }      /// <summary>      ///      /// </summary>      /// <param name="x"></param>      /// <param name="y"></param>      public void mouseDown(int x, int y)      {          stMgr.mouseDown(x, y);          repaint();      }      /// <summary>      /// /      /// </summary>      /// <param name="x"></param>      /// <param name="y"></param>      public void mouseDrag(int x, int y)      {          stMgr.mouseDrag(x, y);          repaint();      }      /// <summary>      ///      /// </summary>      /// <param name="g"></param>      public void reDraw(Graphics g)      {            foreach (object obj in drawings)          {              Drawing d = (Drawing)obj;              d.draw(g);          }      }  }

　　

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/// <summary>   /// Summary description for FillState.   /// State Patterns状态模式   ///20220918   /// geovindu,Geovin Du,涂聚文   /// </summary>   public class FillState : State   {       public FillState(Mediator md) : base(md) { }       /// <summary>       ///       /// </summary>       /// <param name="x"></param>       /// <param name="y"></param>       public override void mouseDown(int x, int y)       {           //Fill drawing if you click inside one           int i = med.findDrawing(x, y);           if (i >= 0)           {               Drawing d = med.getDrawing(i);               d.setFill(true);  //fill drawing           }       }       /// <summary>       ///       /// </summary>       /// <param name="d"></param>       public override void selectOne(Drawing d)       {           //fill drawing if selected           d.setFill(true);       }   }

　　

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/// <summary>   /// Summary description for FillMemento.   /// State Patterns状态模式   ///20220918   /// geovindu,Geovin Du,涂聚文   /// </summary>   public class FillMemento : Memento   {       private int index;       private Mediator med;       /// <summary>       ///       /// </summary>       /// <param name="dindex"></param>       /// <param name="md"></param>       public FillMemento(int dindex, Mediator md)       {           index = dindex;           med = md;       }       /// <summary>       ///       /// </summary>       public void restore()       {           Drawing d = med.getDrawing(index);           d.setFill(false);       }   }

　　

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/// <summary> /// save the state of a visual rectangle /// State Patterns状态模式 ///20220918 /// geovindu,Geovin Du,涂聚文 /// </summary> public class DrawMemento : Memento {     private int x, y, w, h;     private Rectangle rect;     private Drawing visDraw;     /// <summary>     ///     /// </summary>     /// <param name="d"></param>     public DrawMemento(Drawing d)     {         visDraw = d;         rect = visDraw.getRects();         x = rect.x;         y = rect.y;         w = rect.w;         h = rect.h;     }     /// <summary>     ///     /// </summary>     public void restore()     {         //restore the state of a drawing object         rect.x = x;         rect.y = y;         rect.h = h;         rect.w = w;         visDraw.setRects(rect);     } }

　　

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/// <summary>  /// Summary description for DrawInstance.  /// State Patterns状态模式  ///20220918  /// geovindu,Geovin Du,涂聚文  /// </summary>  public class DrawInstance : Memento  {      private int intg;      private Mediator med;      /// <summary>      ///      /// </summary>      /// <param name="intg"></param>      /// <param name="md"></param>      public DrawInstance(int intg, Mediator md)      {          this.intg = intg;          med = md;      }      /// <summary>      ///      /// </summary>      public int integ      {          get          {              return intg;          }      }      /// <summary>      ///      /// </summary>      public void restore()      {          med.removeDrawing(intg);      }  }

　　

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/// <summary>  /// Summary description for Command.  /// State Patterns状态模式  ///20220918  /// geovindu,Geovin Du,涂聚文  /// </summary>  public interface Command  {      void Execute();  }

　　

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/// <summary>     /// Summary description for CircleState.     /// State Patterns状态模式     ///20220918     /// geovindu,Geovin Du,涂聚文     /// </summary>     public class CircleState : State     {         public CircleState(Mediator md) : base(md) { }         /// <summary>         ///         /// </summary>         /// <param name="x"></param>         /// <param name="y"></param>         public override void mouseDown(int x, int y)         {             VisCircle c = new VisCircle(x, y);             med.addDrawing(c);         }     } }

　　

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/// <summary>   /// Summary description for ArrowState.   /// State Patterns状态模式   ///20220918   /// geovindu,Geovin Du,涂聚文   /// </summary>   public class ArrowState : State   {         /// <summary>       ///       /// </summary>       /// <param name="md"></param>       public ArrowState(Mediator md) : base(md) { }         /// <summary>       ///       /// </summary>       /// <param name="x"></param>       /// <param name="y"></param>       public override void mouseDown(int x, int y)       {           med.unpick();           med.startArrow();           int i = med.findDrawing(x, y);           if (i >= 0)           {               med.setSelected(i);               med.rememberPosition();           }       }       /// <summary>       ///       /// </summary>       /// <param name="x"></param>       /// <param name="y"></param>       public override void mouseDrag(int x, int y)       {           int i = med.findDrawing(x, y);           if (i >= 0)           {               Drawing d = med.getDrawing(i);               d.move(x, y);           }       }   }

　　

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/// <summary>  /// Summary description for CircleButton.  /// State Patterns状态模式  ///20220918  /// geovindu,Geovin Du,涂聚文  /// </summary>  public class CircleButton : ComdToolBarButton  {        /// <summary>      ///      /// </summary>      /// <param name="md"></param>      public CircleButton(Mediator md)          : base("Circle", md)      {          this.DisplayStyle = ToolStripItemDisplayStyle.Text;   //          // this.Style=ToolBarButtonStyle.ToggleButton ;          med.registerCircleButton(this);      }      /// <summary>      /// /      /// </summary>      public override void Execute()      {          med.startCircle();      }  }

　　

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/// <summary>  /// Summary description for ClearButton.  /// State Patterns状态模式  ///20220918  /// geovindu,Geovin Du,涂聚文  /// </summary>  public class ClearButton : ComdToolBarButton  {      public ClearButton(Mediator md) : base("Clear", md) { }      public override void Execute()      {          med.clear();      }  }

　　

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/// <summary>  /// State Patterns状态模式  ///20220918  /// geovindu,Geovin Du,涂聚文  /// </summary>  public partial class ComdToolBarButton : ToolStripButton, Command  {      protected Mediator med;      protected bool selected;        /// <summary>      ///      /// </summary>      /// <param name="caption"></param>      /// <param name="md"></param>      public ComdToolBarButton(string caption, Mediator md)      {          InitializeComponent();          med = md;          this.Text = caption;        }      /// <summary>      ///      /// </summary>      /// <param name="b"></param>      public void setSelected(bool b)      {          selected = b;          if (!selected)              this.selected = false;          //this.Pushed = false;      }      /// <summary>      ///      /// </summary>      public virtual void Execute()      {      }        /// <summary>      ///      /// </summary>      public ComdToolBarButton()      {          InitializeComponent();      }      /// <summary>      ///      /// </summary>      /// <param name="container"></param>      public ComdToolBarButton(IContainer container)      {          container.Add(this);            InitializeComponent();      }  }

　　

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/// <summary>  /// Summary description for UndoButton.  /// State Patterns状态模式  ///20220918  /// geovindu,Geovin Du,涂聚文  /// </summary>  public class UndoButton : ComdToolBarButton  {      public UndoButton(Mediator md)          : base("Undo", md)      {      }      public override void Execute()      {          med.undo();      }  }

　　

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/// <summary> /// Summary description for RectButton. /// State Patterns状态模式 ///20220918 /// geovindu,Geovin Du,涂聚文 /// </summary> public class RectButton : ComdToolBarButton {     public RectButton(Mediator md)         : base("Rectangle", md)     {         //this.Style =ToolBarButtonStyle.ToggleButton ;         this.DisplayStyle = ToolStripItemDisplayStyle.Text;         med.registerRectButton(this);     }     public override void Execute()     {         med.startRectangle();     } }

　　

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/// <summary> /// Summary description for PickButton. /// State Patterns状态模式 ///20220918 /// geovindu,Geovin Du,涂聚文 /// </summary> public class PickButton : ComdToolBarButton {     public PickButton(Mediator md)         : base("Select", md)     {         //this.Style = ToolBarButtonStyle.ToggleButton ;         this.DisplayStyle = ToolStripItemDisplayStyle.Text;         med.registerArrowButton(this);     }     public override void Execute()     {         med.startArrow();     } }

　　

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/// <summary> /// Summary description for FillButton. /// State Patterns状态模式 ///20220918 /// geovindu,Geovin Du,涂聚文 /// </summary> public class FillButton : ComdToolBarButton {     public FillButton(Mediator md)         : base("Fill", md)     {         this.DisplayStyle = ToolStripItemDisplayStyle.Text;         //this.Style = ToolBarButtonStyle.ToggleButton ;         med.registerFillButton(this);     }     public override void Execute()     {         med.startFill();     } }

　　

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/// <summary>    /// Summary description for VisRectangle.    /// State Patterns状态模式    ///20220918    /// geovindu,Geovin Du,涂聚文    /// </summary>    public class VisRectangle : Drawing    {        protected int x, y, w, h;        private const int VSIZE = 30;        private const int HSIZE = 40;        private Rectangle rect;        protected bool selected;        protected bool filled;        protected Pen bPen;        protected SolidBrush bBrush, rBrush;        /// <summary>        ///        /// </summary>        /// <param name="xp"></param>        /// <param name="yp"></param>        public VisRectangle(int xp, int yp)        {            x = xp; y = yp;            w = HSIZE; h = VSIZE;            saveAsRect();            bPen = new Pen(Color.Black);            bBrush = new SolidBrush(Color.Black);            rBrush = new SolidBrush(Color.Red);        }             /// <summary>        /// used by Memento for saving and restoring state        /// </summary>        /// <returns></returns>        public Rectangle getRects()        {            return rect;        }        /// <summary>        ///        /// </summary>        /// <param name="value"></param>        public void setRects(Rectangle value)        {            x = value.x; y = value.y;            w = value.w; h = value.h;            saveAsRect();        }        /// <summary>        ///        /// </summary>        /// <param name="b"></param>        public void setSelected(bool b)        {            selected = b;        }        /// <summary>        /// move to new position        /// </summary>        /// <param name="xp"></param>        /// <param name="yp"></param>        public void move(int xp, int yp)        {            x = xp; y = yp;            saveAsRect();        }        /// <summary>        ///        /// </summary>        /// <param name="g"></param>        public virtual void draw(Graphics g)        {            //draw rectangle            g.DrawRectangle(bPen, x, y, w, h);            if (filled)                g.FillRectangle(rBrush, x, y, w, h);            drawHandles(g);        }        /// <summary>        ///        /// </summary>        /// <param name="g"></param>        public void drawHandles(Graphics g)        {            if (selected)            {   //draw handles                g.FillRectangle(bBrush, x + w / 2, y - 2, 4, 4);                g.FillRectangle(bBrush, x - 2, y + h / 2, 4, 4);                g.FillRectangle(bBrush, x + (w / 2), y + h - 2, 4, 4);                g.FillRectangle(bBrush, x + (w - 2), y + (h / 2), 4, 4);            }        }           /// <summary>        /// return whether point is inside rectangle        /// </summary>        /// <param name="x"></param>        /// <param name="y"></param>        /// <returns></returns>        public bool contains(int x, int y)        {            return rect.contains(x, y);        }              /// <summary>        /// create Rectangle object from new position        /// </summary>        protected void saveAsRect()        {            rect = new Rectangle(x, y, w, h);        }        /// <summary>        ///        /// </summary>        /// <param name="b"></param>        public void setFill(bool b)        {            filled = b;        }    }

　　

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/// <summary>    /// State Patterns状态模式    ///20220918    /// geovindu,Geovin Du,涂聚文    /// </summary>    public partial class StatePatternForm : Form    {        private Mediator med;            private CircleButton circButton;        private RectButton rctButton;        private PickButton arowButton;        private FillButton flButton;        private UndoButton undoB;        private ClearButton clrb;        /// <summary>        ///        /// </summary>        private void init()        {            //create a Mediator            med = new Mediator(pic);            //create the buttons            rctButton = new RectButton(med);            arowButton = new PickButton(med);            circButton = new CircleButton(med);            flButton = new FillButton(med);            undoB = new UndoButton(med);            clrb = new ClearButton(med);            //add the buttons into the toolbar            tBar.Items.Add(arowButton);            tBar.Items.Add(rctButton);            tBar.Items.Add(circButton);            tBar.Items.Add(flButton);            //include a separator            //ToolBarButton sep = new ToolBarButton();            //sep.Style = ToolBarButtonStyle.Separator;              ComdToolBarButton sep = new ComdToolBarButton();            sep.DisplayStyle = ToolStripItemDisplayStyle.Text;// ToolBarButtonStyle.Separator;            sep.Text = "Separator";              tBar.Items.Add(sep);            tBar.Items.Add(undoB);            tBar.Items.Add(clrb);        }        /// <summary>        ///        /// </summary>        public StatePatternForm()        {            InitializeComponent();            init();        }        /// <summary>        ///        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        private void StatePatternForm_Load(object sender, EventArgs e)        {          }        /// <summary>        ///        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        private void pic_MouseDown(object sender, MouseEventArgs e)        {            med.mouseDown(e.X, e.Y);        }        /// <summary>        ///        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        private void pic_MouseMove(object sender, MouseEventArgs e)        {            if (e.Button != MouseButtons.None)            {                med.mouseDrag(e.X, e.Y);            }        }        /// <summary>        ///        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        private void pic_MouseUp(object sender, MouseEventArgs e)        {            med.mouseUp(e.X, e.Y);        }        /// <summary>        ///        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        private void pic_Paint(object sender, PaintEventArgs e)        {            Graphics g = e.Graphics;            med.reDraw(g);        }        /// <summary>        ///        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        private void tBar_ItemClicked(object sender, ToolStripItemClickedEventArgs e)        {            Command comd = (Command)e.ClickedItem;            comd.Execute();        }    }

　　

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