namespace Dali {

using System;

public class Size : Vector2
       {

  /**
   * @brief constructor
   *
   * @since 1.0.0
   * @param [in] a The Size X.
   * @param [in] b The Size Y.
   */
          public Size(float a, float b)
              : base(a, b)
           {
           }
  /**
   * @brief constructor
   *
   * @since 1.0.0
   */
          public Size()
              : base()
           {
           }   

  /**
   * @brief constructor
   *
   * @since 1.0.0
   * @param [in] o The Vector Size X, Y.
   */
          public Size(Vector2 o)
               : base(o.x, o.y)
          {
                 
          }

  /**
   * @brief constructor
   *
   * @since 1.0.0
   * @param [in] o The Size X, Y.
   */
          public Size(Size a)
              : base(a.width, a.height)
           {
           }

  ///< name "W", type float (Size W value)
  //@since 1.0.0
           public float W
           {
               get { return width; }
               set { width = value; }
           }

  ///< name "H", type float (Size W value)
  //@since 1.0.0
           public float H
           {
               get { return height; }
               set { height = value; }
           }

  /**
   * @brief operator+
   *
   * @since 1.0.0
   * @param [in] l The Size to add.
   * @param [in] r The Size to add
   * @return A reference to this
   */ 
           public static Size operator +(Size l, Size r)
           {
               return new Size(l.W + r.W, l.H + r.H);
           }

  /**
   * @brief operator-
   *
   * @since 1.0.0
   * @param [in] l The Size to add.
   * @param [in] r The Size to add
   * @return A reference to this
   */
           public static Size operator -(Size l, Size r)
           {
               return new Size(l.W - r.W, l.H - r.H);
           }

  /**
   * @brief operator*
   *
   * @since 1.0.0
   * @param [in] l The Size to add.
   * @param [in] r The Size to add
   * @return A reference to this
   */ 
           public static Size operator *(Size a, double b)
           {
               return new Size((int)(a.W * b), (int)(a.H * b));
           }

  /**
   * @brief operator/
   *
   * @since 1.0.0
   * @param [in] l The Size to add.
   * @param [in] r The Size to add
   * @return A reference to this
   */
           public static float operator /(Size a, Size b)
           {
               return (float)System.Math.Sqrt((a.W / b.W) * (a.H / b.H));
           }

  /**
   * @brief Equals
   *
   * @since 1.0.0
   * @param [in] o The Size object to compare.
   * @param [in] r The Size to add
   * @return bool, whether object equal or not
   */
           public override bool Equals(object obj)
           {
               Size that = obj as Size;
               if (that == null)
               {
                   return false;
               }
               return this.W == that.W && this.H == that.H;
           }

  /**
   * @brief GetHashCode
   *
   * @since 1.0.0
   * @return int, hascode of Size
   */
           public override int GetHashCode()
           {
               return (int)(W + H);
           }

  /**
   * @brief Clone
   *
   * @since 1.0.0
   * @return Size object
   */
           public Size Clone()
           {
               Size copy = new Size(W, H);
               return copy;
           }
       }
}