Animatable.cs source code in C# .NET

                        Code:
                         / DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Core / System / Windows / Media / Animation / Generated / Animatable.cs / 1 / Animatable.cs
                        
                        
                            //---------------------------------------------------------------------------- 
//
// 
//    Copyright (C) Microsoft Corporation.  All rights reserved.
//  
//
// This file was generated, please do not edit it directly. 
// 
// This file was generated from the codegen template located at:
//     windows\mil\codegen\mcg\generators\AnimatableTemplate.cs 
//
// Please see [....]/default.aspx/Microsoft.Projects.Avalon/MilCodeGen.html for more information.
//
//--------------------------------------------------------------------------- 

// Allow suppression of certain presharp messages 
#pragma warning disable 1634, 1691 

using MS.Internal; 
using MS.Utility;
using System;
using System.Collections;
using System.Collections.Generic; 
using System.Diagnostics;
using System.Security; 
using System.Security.Permissions; 
using System.Windows.Threading;
using System.Windows.Media.Animation; 
using System.Windows.Media.Composition;

using SR = MS.Internal.PresentationCore.SR;
using SRID = MS.Internal.PresentationCore.SRID; 

namespace System.Windows.Media.Animation 
{ 
    /// 
    /// This class derives from Freezable and adds the ability to animate properties. 
    /// 
    public abstract partial class Animatable : IAnimatable
    {
        #region IAnimatable 

        ///  
        /// Applies an AnimationClock to a DepencencyProperty which will 
        /// replace the current animations on the property using the snapshot
        /// and replace HandoffBehavior. 
        /// 
        /// 
        /// The DependencyProperty to animate.
        ///  
        /// 
        /// The AnimationClock that will animate the property. If this is null 
        /// then all animations will be removed from the property. 
        /// 
        public void ApplyAnimationClock( 
            DependencyProperty dp,
            AnimationClock clock)
        {
            ApplyAnimationClock(dp, clock, HandoffBehavior.SnapshotAndReplace); 
        }
 
        ///  
        /// Applies an AnimationClock to a DependencyProperty. The effect of
        /// the new AnimationClock on any current animations will be determined by 
        /// the value of the handoffBehavior parameter.
        /// 
        /// 
        /// The DependencyProperty to animate. 
        /// 
        ///  
        /// The AnimationClock that will animate the property. If parameter is null 
        /// then animations will be removed from the property if handoffBehavior is
        /// SnapshotAndReplace; otherwise the method call will have no result. 
        /// 
        /// 
        /// Determines how the new AnimationClock will transition from or
        /// affect any current animations on the property. 
        /// 
        public void ApplyAnimationClock( 
            DependencyProperty dp, 
            AnimationClock clock,
            HandoffBehavior handoffBehavior) 
        {
            if (dp == null)
            {
                throw new ArgumentNullException("dp"); 
            }
 
            if (!AnimationStorage.IsPropertyAnimatable(this, dp)) 
            {
        #pragma warning disable 56506 // Suppress presharp warning: Parameter 'dp' to this public method must be validated:  A null-dereference can occur here. 
                throw new ArgumentException(SR.Get(SRID.Animation_DependencyPropertyIsNotAnimatable, dp.Name, this.GetType()), "dp");
        #pragma warning restore 56506
            }
 
            if (clock != null
                && !AnimationStorage.IsAnimationValid(dp, clock.Timeline)) 
            { 
        #pragma warning disable 56506 // Suppress presharp warning: Parameter 'dp' to this public method must be validated:  A null-dereference can occur here.
                throw new ArgumentException(SR.Get(SRID.Animation_AnimationTimelineTypeMismatch, clock.Timeline.GetType(), dp.Name, dp.PropertyType), "clock"); 
        #pragma warning restore 56506
            }

            if (!HandoffBehaviorEnum.IsDefined(handoffBehavior)) 
            {
                throw new ArgumentException(SR.Get(SRID.Animation_UnrecognizedHandoffBehavior)); 
            } 

            if (IsSealed) 
            {
                throw new InvalidOperationException(SR.Get(SRID.IAnimatable_CantAnimateSealedDO, dp, this.GetType()));
            }
 
            AnimationStorage.ApplyAnimationClock(this, dp, clock, handoffBehavior);
        } 
 
        /// 
        /// Starts an animation for a DependencyProperty. The animation will 
        /// begin when the next frame is rendered.
        /// 
        /// 
        /// The DependencyProperty to animate. 
        /// 
        ///  
        /// The AnimationTimeline to used to animate the property. 
        /// If the AnimationTimeline's BeginTime is null, any current animations
        /// will be removed and the current value of the property will be held. 
        /// If this value is null, all animations will be removed from the property
        /// and the property value will revert back to its base value.
        /// 
        public void BeginAnimation(DependencyProperty dp, AnimationTimeline animation) 
        {
            BeginAnimation(dp, animation, HandoffBehavior.SnapshotAndReplace); 
        } 

        ///  
        /// Starts an animation for a DependencyProperty. The animation will
        /// begin when the next frame is rendered.
        /// 
        ///  
        /// The DependencyProperty to animate.
        ///  
        ///  
        /// The AnimationTimeline to used to animate the property.
        /// If the AnimationTimeline's BeginTime is null, any current animations 
        /// will be removed and the current value of the property will be held.
        /// If this value is null, all animations will be removed from the property
        /// and the property value will revert back to its base value.
        ///  
        /// 
        /// Specifies how the new animation should interact with any current 
        /// animations already affecting the property value. 
        /// 
        public void BeginAnimation(DependencyProperty dp, AnimationTimeline animation, HandoffBehavior handoffBehavior) 
        {
            if (dp == null)
            {
                throw new ArgumentNullException("dp"); 
            }
 
            if (!AnimationStorage.IsPropertyAnimatable(this, dp)) 
            {
        #pragma warning disable 56506 // Suppress presharp warning: Parameter 'dp' to this public method must be validated:  A null-dereference can occur here. 
                throw new ArgumentException(SR.Get(SRID.Animation_DependencyPropertyIsNotAnimatable, dp.Name, this.GetType()), "dp");
        #pragma warning restore 56506
            }
 
            if (   animation != null
                && !AnimationStorage.IsAnimationValid(dp, animation)) 
            { 
                throw new ArgumentException(SR.Get(SRID.Animation_AnimationTimelineTypeMismatch, animation.GetType(), dp.Name, dp.PropertyType), "animation");
            } 

            if (!HandoffBehaviorEnum.IsDefined(handoffBehavior))
            {
                throw new ArgumentException(SR.Get(SRID.Animation_UnrecognizedHandoffBehavior)); 
            }
 
            if (IsSealed) 
            {
                throw new InvalidOperationException(SR.Get(SRID.IAnimatable_CantAnimateSealedDO, dp, this.GetType())); 
            }

            AnimationStorage.BeginAnimation(this, dp, animation, handoffBehavior);
        } 

        ///  
        /// Returns true if any properties on this DependencyObject have a 
        /// persistent animation or the object has one or more clocks associated
        /// with any of its properties. 
        /// 
        public bool HasAnimatedProperties
        {
            get 
            {
                VerifyAccess(); 
 
                return IAnimatable_HasAnimatedProperties;
            } 
        }

        /// 
        ///   If the dependency property is animated this method will 
        ///   give you the value as if it was not animated.
        ///  
        /// The DependencyProperty 
        /// 
        ///   The value that would be returned if there were no 
        ///   animations attached.  If there aren't any attached, then
        ///   the result will be the same as that returned from
        ///   GetValue.
        ///  
        public object GetAnimationBaseValue(DependencyProperty dp)
        { 
            if (dp == null) 
            {
                throw new ArgumentNullException("dp"); 
            }

            return this.GetValueEntry(
                    LookupEntry(dp.GlobalIndex), 
                    dp,
                    null, 
                    RequestFlags.AnimationBaseValue).Value; 
        }
 
        #endregion IAnimatable

        #region Animation
 
        /// 
        ///     Allows subclasses to participate in property animated value computation 
        ///  
        /// 
        ///  
        /// EffectiveValueEntry computed by base
        /// 
        ///     Putting an InheritanceDemand as a defense-in-depth measure,
        ///     as this provides a hook to the property system that we don't 
        ///     want exposed under PartialTrust.
        ///  
        [UIPermissionAttribute(SecurityAction.InheritanceDemand, Window=UIPermissionWindow.AllWindows)] 
        internal sealed override void EvaluateAnimatedValueCore(
                DependencyProperty  dp, 
                PropertyMetadata    metadata,
            ref EffectiveValueEntry entry)
        {
            if (IAnimatable_HasAnimatedProperties) 
            {
                AnimationStorage storage = AnimationStorage.GetStorage(this, dp); 
 
                if (storage != null)
                { 
                    object value = entry.GetFlattenedEntry(RequestFlags.FullyResolved).Value;
                    if (entry.IsDeferredReference)
                    {
                        DeferredReference dr = (DeferredReference)value; 
                        value = dr.GetValue(entry.BaseValueSourceInternal);
 
                        // Set the baseValue back into the entry and clear the 
                        // IsDeferredReference flag
                        entry.SetAnimationBaseValue(value); 
                        entry.IsDeferredReference = false;
                    }

                    object animatedValue = AnimationStorage.GetCurrentPropertyValue(storage, this, dp, metadata, value); 

                    entry.SetAnimatedValue(animatedValue, value); 
                } 
            }
        } 

        #endregion Animation
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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