XNAGameStudio/Samples/CurveEditor_4_0/CurveControl/EditCurveState.cs

//-----------------------------------------------------------------------------
// EditCurveState.cs
//
// Microsoft XNA Community Game Platform
// Copyright (C) Microsoft Corporation. All rights reserved.
//-----------------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Text;

using Microsoft.Xna.Framework;

namespace Xna.Tools
{
    /// <summary>
    /// This class contians curve states which are name, PreLoop, and PostLoop.
    /// </summary>
    public class EditCurveState : IEquatable<EditCurveState>
    {
        #region Properties

        /// <summary>
        /// Gets/Sets Name
        /// </summary>
        public string Name
        {
            get { return name; }
            set { name = value; }
        }

        /// <summary>
        /// Gets/Sets PreLoop
        /// </summary>
        public CurveLoopType PreLoop
        {
            get { return preLoop; }
            set { preLoop = value; }
        }

        /// <summary>
        /// Gets/Sets PostLoop
        /// </summary>
        public CurveLoopType PostLoop
        {
            get { return postLoop; }
            set { postLoop = value; }
        }

        #endregion

        #region Equatable related override methods.
        public override int GetHashCode()
        {
            return String.IsNullOrEmpty(Name) ? 0 : Name.GetHashCode() +
                PreLoop.GetHashCode() + +PostLoop.GetHashCode();
        }

        public override bool Equals(object obj)
        {
            EditCurveState other = obj as EditCurveState;
            bool isSame = false;
            if (other != null)
                isSame = Equals(other);

            return isSame;
        }

        public bool Equals(EditCurveState other)
        {
            if (other == null) return false;

            return (Name == other.Name &&
                PreLoop == other.PreLoop &&
                PostLoop == other.PostLoop);
        }

        #endregion

        /// <summary>
        /// Create close of this state.
        /// </summary>
        /// <returns></returns>
        public EditCurveState Clone()
        {
            EditCurveState newState = new EditCurveState();
            newState.Name = Name;
            newState.PreLoop = PreLoop;
            newState.PostLoop = PostLoop;
            return newState;
        }

        #region Operator override

        public static bool operator ==(EditCurveState value1, EditCurveState value2)
        {
            return Object.Equals(value1, value2);
        }

        public static bool operator !=(EditCurveState value1, EditCurveState value2)
        {
            return !Object.Equals(value1, value2);
        }

        #endregion

        #region Private property members

        private string name;
        private CurveLoopType preLoop;
        private CurveLoopType postLoop;

        #endregion

    }
}