/// <summary>
/// 绘制矩形
/// </summary>
/// <param name="g"></param>
public virtual void Draw(Graphics g)
{
Pen pen = new Pen(Color.Black);
g.DrawRectangle(pen, DrawRectangle.GetNormalizedRectangle(Rectangle));
DrawTracker(g);
pen.Dispose();
}
/// <summary>
/// 规格化矩形，在对象改变大小的之后调用
/// </summary>
public virtual void Normalize()
{
rectangle = DrawRectangle.GetNormalizedRectangle(rectangle);
}