// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
//
//
// This file was generated, please do not edit it directly.
//
// Please see MilCodeGen.html for more information.
//
 
// Allow use of presharp: #pragma warning suppress <nnnn>
#pragma warning disable 1634, 1691
 
using MS.Internal;
 
using System;
using System.Collections;
using System.ComponentModel;
using System.Diagnostics;
using System.Windows.Media.Animation;   
using System.Windows.Media.Media3D;
 
using MS.Internal.PresentationCore;
 
using SR=MS.Internal.PresentationCore.SR;
 
namespace System.Windows.Media.Animation
{       
    /// <summary>
    ///
    /// </summary>
    public abstract class ObjectAnimationBase : AnimationTimeline
    {
        #region Constructors
 
        /// <Summary>
        /// Creates a new ObjectAnimationBase.
        /// </Summary>
        protected ObjectAnimationBase()
            : base()
        {
        }
 
        #endregion
 
        #region Freezable
 
        /// <summary>
        /// Creates a copy of this ObjectAnimationBase
        /// </summary>
        /// <returns>The copy</returns>
        public new ObjectAnimationBase Clone()
        {
            return (ObjectAnimationBase)base.Clone();
        }
 
        #endregion
 
        #region IAnimation
 
        /// <summary>
        /// Calculates the value this animation believes should be the current value for the property.
        /// </summary>
        /// <param name="defaultOriginValue">
        /// This value is the suggested origin value provided to the animation
        /// to be used if the animation does not have its own concept of a
        /// start value. If this animation is the first in a composition chain
        /// this value will be the snapshot value if one is available or the
        /// base property value if it is not; otherise this value will be the 
        /// value returned by the previous animation in the chain with an 
        /// animationClock that is not Stopped.
        /// </param>
        /// <param name="defaultDestinationValue">
        /// This value is the suggested destination value provided to the animation
        /// to be used if the animation does not have its own concept of an
        /// end value. This value will be the base value if the animation is
        /// in the first composition layer of animations on a property; 
        /// otherwise this value will be the output value from the previous 
        /// composition layer of animations for the property.
        /// </param>
        /// <param name="animationClock">
        /// This is the animationClock which can generate the CurrentTime or
        /// CurrentProgress value to be used by the animation to generate its
        /// output value.
        /// </param>
        /// <returns>
        /// The value this animation believes should be the current value for the property.
        /// </returns>
        public override sealed object GetCurrentValue(object defaultOriginValue, object defaultDestinationValue, AnimationClock animationClock)
        {
            ReadPreamble();
 
            ArgumentNullException.ThrowIfNull(animationClock);
 
            // We check for null above but presharp doesn't notice so we suppress the 
            // warning here.
 
#pragma warning suppress 6506
            if (animationClock.CurrentState == ClockState.Stopped)
            {
                return defaultDestinationValue;
            }
 
            /*
            if (!AnimatedTypeHelpers.IsValidAnimationValueObject(defaultDestinationValue))
            {
                throw new ArgumentException(
                    SR.Format(
                        SR.Animation_InvalidBaseValue,
                        defaultDestinationValue, 
                        defaultDestinationValue.GetType(), 
                        GetType()),
                        "defaultDestinationValue");
            }
            */
 
            return GetCurrentValueCore(defaultOriginValue, defaultDestinationValue, animationClock);
        }
 
        /// <summary>
        /// Returns the type of the target property
        /// </summary>
        public override sealed Type TargetPropertyType
        {
            get
            {
                ReadPreamble();
 
                return typeof(Object);
            }
        }
 
        #endregion
 
        #region Methods
 
 
 
        /// <summary>
        /// Calculates the value this animation believes should be the current value for the property.
        /// </summary>
        /// <param name="defaultOriginValue">
        /// This value is the suggested origin value provided to the animation
        /// to be used if the animation does not have its own concept of a
        /// start value. If this animation is the first in a composition chain
        /// this value will be the snapshot value if one is available or the
        /// base property value if it is not; otherise this value will be the 
        /// value returned by the previous animation in the chain with an 
        /// animationClock that is not Stopped.
        /// </param>
        /// <param name="defaultDestinationValue">
        /// This value is the suggested destination value provided to the animation
        /// to be used if the animation does not have its own concept of an
        /// end value. This value will be the base value if the animation is
        /// in the first composition layer of animations on a property; 
        /// otherwise this value will be the output value from the previous 
        /// composition layer of animations for the property.
        /// </param>
        /// <param name="animationClock">
        /// This is the animationClock which can generate the CurrentTime or
        /// CurrentProgress value to be used by the animation to generate its
        /// output value.
        /// </param>
        /// <returns>
        /// The value this animation believes should be the current value for the property.
        /// </returns>
        protected abstract Object GetCurrentValueCore(Object defaultOriginValue, Object defaultDestinationValue, AnimationClock animationClock);
 
        #endregion
    }
}