/*
 * Copyright(c) 2018 Samsung Electronics Co., Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

namespace Tizen.NUI
{
    using System;
    using System.ComponentModel;
    using System.Runtime.InteropServices;
    using Tizen.NUI.BaseComponents;

    using System.Collections;
    using System.Collections.Generic;
    using System.Linq;
    using System.Reflection;
    using System.Xml;
    using Tizen.NUI.Binding.Internals;
    using Tizen.NUI.Binding;
    using System.Globalization;
    using Tizen.NUI.Xaml.Internals;

    /// <summary>
    /// Animation can be used to animate the properties of any number of objects, typically view.<br />
    /// If the "Finished" event is connected to a member function of an object, it must be disconnected before the object is destroyed.<br />
    /// This is typically done in the object destructor, and requires either the animation handle to be stored.<br />
    /// The overall animation time is superseded by the values given in the animation time used when calling the AnimateTo(), AnimateBy(), AnimateBetween() and AnimatePath() methods.<br />
    /// If any of the individual calls to those functions exceeds the overall animation time (Duration), then the overall animation time is automatically extended.<br />
    /// </summary>
    /// <since_tizen> 3 </since_tizen>
    public class Animation : BaseHandle
    {
        private static bool? disableAnimation = null;

        private global::System.Runtime.InteropServices.HandleRef swigCPtr;

        private AnimationFinishedEventCallbackType _animationFinishedEventCallback;
        private System.IntPtr _finishedCallbackOfNative;

        private AnimationProgressReachedEventCallbackType _animationProgressReachedEventCallback;

        private string[] _properties = null;
        private string[] _destValue = null;
        private int[] _startTime = null;
        private int[] _endTime = null;

        /// <summary>
        /// Creates an initialized animation.<br />
        /// The animation will not loop.<br />
        /// The default end action is "Cancel".<br />
        /// The default alpha function is linear.<br />
        /// </summary>
        /// <remarks>DurationmSeconds must be greater than zero.</remarks>
        /// <param name="durationMilliSeconds">The duration in milliseconds.</param>
        /// <since_tizen> 3 </since_tizen>
        public Animation(int durationMilliSeconds) : this(Interop.Animation.Animation_New((float)durationMilliSeconds / 1000.0f), true)
        {
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal Animation(global::System.IntPtr cPtr, bool cMemoryOwn) : base(Interop.Animation.Animation_SWIGUpcast(cPtr), cMemoryOwn)
        {
            swigCPtr = new global::System.Runtime.InteropServices.HandleRef(this, cPtr);

            _animationFinishedEventCallback = OnFinished;
            _finishedCallbackOfNative = System.Runtime.InteropServices.Marshal.GetFunctionPointerForDelegate<System.Delegate>(_animationFinishedEventCallback);
        }

        [UnmanagedFunctionPointer(CallingConvention.StdCall)]
        private delegate void AnimationFinishedEventCallbackType(IntPtr data);

        [UnmanagedFunctionPointer(CallingConvention.StdCall)]
        private delegate void AnimationProgressReachedEventCallbackType(IntPtr data);

        private event EventHandler _animationFinishedEventHandler;

        /**
        * @brief Event for the finished signal which can be used to subscribe or unsubscribe the event handler.
        * The finished signal is emitted when an animation's animations have finished.
        */
        /// <since_tizen> 3 </since_tizen>
        public event EventHandler Finished
        {
            add
            {
                if (_animationFinishedEventHandler == null && disposed == false)
                {
                    FinishedSignal().Connect(_finishedCallbackOfNative);
                }
                _animationFinishedEventHandler += value;
            }
            remove
            {
                _animationFinishedEventHandler -= value;

                if (_animationFinishedEventHandler == null && FinishedSignal().Empty() == false)
                {
                    FinishedSignal().Disconnect(_finishedCallbackOfNative);
                }
            }
        }

        private event EventHandler _animationProgressReachedEventHandler;

        /**
       * @brief Event for the ProgressReached signal, which can be used to subscribe or unsubscribe the event handler.
       * The ProgressReached signal is emitted when the animation has reached a given progress percentage, this is set in the api SetProgressNotification.
       */
        /// <since_tizen> 3 </since_tizen>
        public event EventHandler ProgressReached
        {
            add
            {
                if (_animationProgressReachedEventHandler == null)
                {
                    _animationProgressReachedEventCallback = OnProgressReached;
                    ProgressReachedSignal().Connect(_animationProgressReachedEventCallback);
                }

                _animationProgressReachedEventHandler += value;
            }
            remove
            {
                _animationProgressReachedEventHandler -= value;

                if (_animationProgressReachedEventHandler == null && ProgressReachedSignal().Empty() == false)
                {
                    ProgressReachedSignal().Disconnect(_animationProgressReachedEventCallback);
                }
            }
        }

        /// <summary>
        /// Enumeration for what to do when the animation ends, stopped, or destroyed.
        /// </summary>
        /// <since_tizen> 3 </since_tizen>
        public enum EndActions
        {
            /// <summary>
            /// When the animation ends, the animated property values are saved.
            /// </summary>
            Cancel,
            /// <summary>
            /// When the animation ends, the animated property values are forgotten.
            /// </summary>
            Discard,
            /// <summary>
            /// If the animation is stopped, the animated property values are saved as if the animation had run to completion, otherwise behaves like cancel.
            /// </summary>
            StopFinal
        }

        /// <summary>
        /// Enumeration for what interpolation method to use on key-frame animations.
        /// </summary>
        /// <since_tizen> 3 </since_tizen>
        public enum Interpolation
        {
            /// <summary>
            /// Values in between key frames are interpolated using a linear polynomial. (Default)
            /// </summary>
            Linear,
            /// <summary>
            /// Values in between key frames are interpolated using a cubic polynomial.
            /// </summary>
            Cubic
        }

        /// <summary>
        /// Enumeration for what state the animation is in.
        /// </summary>
        /// <remarks>Calling Reset() on this class will not reset the animation. It will call the BaseHandle.Reset() which drops the object handle.</remarks>
        /// <since_tizen> 3 </since_tizen>
        public enum States
        {
            /// <summary>
            /// The animation has stopped.
            /// </summary>
            Stopped,
            /// <summary>
            /// The animation is playing.
            /// </summary>
            Playing,
            /// <summary>
            /// The animation is paused.
            /// </summary>
            Paused
        }

        /// <summary>
        /// Gets or sets the duration in milliseconds of the animation.
        /// </summary>
        /// <since_tizen> 3 </since_tizen>
        public int Duration
        {
            set
            {
                SetDuration(MilliSecondsToSeconds(value));
            }
            get
            {
                return SecondsToMilliSeconds(GetDuration());
            }
        }

        /// <summary>
        ///  Gets or sets the default alpha function for the animation.
        /// </summary>
        /// <since_tizen> 3 </since_tizen>
        public AlphaFunction DefaultAlphaFunction
        {
            set
            {
                SetDefaultAlphaFunction(value);
            }
            get
            {
                AlphaFunction ret = GetDefaultAlphaFunction();
                return ret;
            }
        }

        /// <summary>
        /// Queries the state of the animation.
        /// </summary>
        /// <since_tizen> 3 </since_tizen>
        public States State
        {
            get
            {
                return GetState();
            }
        }

        /// <summary>
        /// Set: Enables looping for a specified number of repeats. A zero is the same as Looping = true; i.e., repeat forever.<br />
        /// This property resets the looping value and should not be used with the Looping property.<br />
        /// Setting this parameter does not cause the animation to Play().<br />
        /// Get: Gets the loop count. A zero is the same as Looping = true; i.e., repeat forever.<br />
        /// The loop count is initially 1 for play once.<br />
        /// </summary>
        /// <since_tizen> 3 </since_tizen>
        public int LoopCount
        {
            set
            {
                SetLoopCount(value);
            }
            get
            {
                int ret = GetLoopCount();
                return ret;
            }
        }

        /// <summary>
        /// Gets or sets the status of whether the animation will loop.<br />
        /// This property resets the loop count and should not be used with the LoopCount property.<br />
        /// Setting this parameter does not cause the animation to Play().<br />
        /// </summary>
        /// <since_tizen> 3 </since_tizen>
        public bool Looping
        {
            set
            {
                SetLooping(value);
            }
            get
            {
                bool ret = IsLooping();
                return ret;
            }
        }


        /// <summary>
        /// Gets or sets the end action of the animation.<br />
        /// This action is performed when the animation ends or if it is stopped.<br />
        /// The default end action is cancel.<br />
        /// </summary>
        /// <since_tizen> 3 </since_tizen>
        public EndActions EndAction
        {
            set
            {
                SetEndAction(value);
            }
            get
            {
                return GetEndAction();
            }
        }

        /// <summary>
        /// Gets the current loop count.<br />
        /// A value 0 indicating the current loop count when looping.<br />
        /// </summary>
        /// <since_tizen> 3 </since_tizen>
        public int CurrentLoop
        {
            get
            {
                return GetCurrentLoop();
            }
        }

        /// <summary>
        /// Gets or sets the disconnect action.<br />
        /// If any of the animated property owners are disconnected from the stage while the animation is being played, then this action is performed.<br />
        /// The default action is cancel.<br />
        /// </summary>
        /// <since_tizen> 3 </since_tizen>
        public EndActions DisconnectAction
        {
            set
            {
                Interop.Animation.Animation_SetDisconnectAction(swigCPtr, (int)value);
                if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
            }
            get
            {
                Animation.EndActions ret = (Animation.EndActions)Interop.Animation.Animation_GetDisconnectAction(swigCPtr);
                if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
                return ret;
            }
        }


        /// <summary>
        /// Gets or sets the progress of the animation.<br />
        /// The animation will play (or continue playing) from this point.<br />
        /// The progress must be in the 0-1 interval or in the play range interval if defined<br />
        /// otherwise, it will be ignored.<br />
        /// </summary>
        /// <since_tizen> 3 </since_tizen>
        public float CurrentProgress
        {
            set
            {
                Interop.Animation.Animation_SetCurrentProgress(swigCPtr, value);
                if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
            }
            get
            {
                float ret = Interop.Animation.Animation_GetCurrentProgress(swigCPtr);
                if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
                return ret;
            }
        }

        /// <summary>
        /// Gets or sets specificifications of a speed factor for the animation.<br />
        /// The speed factor is a multiplier of the normal velocity of the animation.<br />
        /// Values between [0, 1] will slow down the animation and values above one will speed up the animation.<br />
        /// It is also possible to specify a negative multiplier to play the animation in reverse.<br />
        /// </summary>
        /// <since_tizen> 3 </since_tizen>
        public float SpeedFactor
        {
            set
            {
                Interop.Animation.Animation_SetSpeedFactor(swigCPtr, value);
                if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
            }
            get
            {
                float ret = Interop.Animation.Animation_GetSpeedFactor(swigCPtr);
                if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
                return ret;
            }
        }

        /// <summary>
        /// Gets or sets the playing range.<br />
        /// Animation will play between the values specified. Both values (range.x and range.y ) should be between 0-1,
        /// otherwise they will be ignored. If the range provided is not in proper order (minimum, maximum ), it will be reordered.<br />
        /// </summary>
        /// <since_tizen> 3 </since_tizen>
        public RelativeVector2 PlayRange
        {
            set
            {
                Interop.Animation.Animation_SetPlayRange(swigCPtr, Vector2.getCPtr(value));
                if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
            }
            get
            {
                Vector2 ret = new Vector2(Interop.Animation.Animation_GetPlayRange(swigCPtr), true);
                if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
                return ret;
            }
        }


        /// <summary>
        /// Gets or sets the progress notification marker which triggers the ProgressReachedSignal.<br />
        /// Percentage of animation progress should be greater than 0 and less than 1, for example, 0.3 for 30% <br />
        /// One notification can be set on each animation.
        /// </summary>
        /// <since_tizen> 3 </since_tizen>
        public float ProgressNotification
        {
            set
            {
                Interop.Animation.Animation_SetProgressNotification(swigCPtr, value);
                if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
            }
            get
            {
                float ret = Interop.Animation.Animation_GetProgressNotification(swigCPtr);
                if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
                return ret;
            }
        }

        /// <summary>
        /// Gets or sets the properties of the animation.
        /// </summary>
        public string[] Properties
        {
            get
            {
                return _properties;
            }
            set
            {
                _properties = value;
            }
        }

        /// <summary>
        /// Gets or sets the destination value for each property of the animation.
        /// </summary>
        public string[] DestValue
        {
            get
            {
                return _destValue;
            }
            set
            {
                _destValue = value;
            }
        }

        /// <summary>
        /// Gets or sets the start time for each property of the animation.
        /// </summary>
        public int[] StartTime
        {
            get
            {
                return _startTime;
            }
            set
            {
                _startTime = value;
            }
        }

        /// <summary>
        /// Gets or sets the end time for each property of the animation.
        /// </summary>
        public int[] EndTime
        {
            get
            {
                return _endTime;
            }
            set
            {
                _endTime = value;
            }
        }

        private bool DisableAnimation
        {
            get
            {
                if (disableAnimation.HasValue == false)
                {
                    string type = Environment.GetEnvironmentVariable("PlatformSmartType");
                    if (type == "Entry")
                        disableAnimation = true;
                    else
                        disableAnimation = false;
                }
                return disableAnimation.Value;
            }
        }

        /// <summary>
        /// Downcasts a handle to animation handle.<br />
        /// If handle points to an animation object, the downcast produces a valid handle.<br />
        /// If not, the returned handle is left uninitialized.<br />
        /// </summary>
        /// <param name="handle">Handle to an object.</param>
        /// <returns>Handle to an animation object or an uninitialized handle.</returns>
        /// <since_tizen> 3 </since_tizen>
        public static Animation DownCast(BaseHandle handle)
        {
            Animation ret = Registry.GetManagedBaseHandleFromNativePtr(handle) as Animation;
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
            return ret;
        }

        /// <summary>
        /// Stops the animation.
        /// </summary>
        /// <param name="action">The end action can be set.</param>
        /// <since_tizen> 3 </since_tizen>
        public void Stop(EndActions action = EndActions.Cancel)
        {
            SetEndAction(action);
            Interop.Animation.Animation_Stop(swigCPtr);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        /// <summary>
        /// Animates a property value by a relative amount.<br />
        /// </summary>
        /// <param name="target">The target object to animate.</param>
        /// <param name="property">The target property to animate.</param>
        /// <param name="relativeValue">The property value will change by this amount.</param>
        /// <param name="alphaFunction">The alpha function to apply.</param>
        /// <since_tizen> 3 </since_tizen>
        public void AnimateBy(View target, string property, object relativeValue, AlphaFunction alphaFunction = null)
        {
            Property _prop = PropertyHelper.GetPropertyFromString(target, property);

            PropertyType propertyType = target.GetPropertyType(_prop.propertyIndex);
            if (propertyType.Equals(PropertyType.Float))
            {
                System.Type type = relativeValue.GetType();
                if (type.Equals(typeof(System.Int32)) || type.Equals(typeof(int)))
                {
                    int num = (int)relativeValue;
                    relativeValue = (float)num;
                }
            }

            PropertyValue val = PropertyValue.CreateFromObject(relativeValue);

            if (alphaFunction != null)
            {
                AnimateBy(_prop, val, alphaFunction);
            }
            else
            {
                AnimateBy(_prop, val);
            }
        }

        /// <summary>
        /// Animates a property value by a relative amount.<br />
        /// </summary>
        /// <param name="target">The target object to animate.</param>
        /// <param name="property">The target property to animate.</param>
        /// <param name="relativeValue">The property value will change by this amount.</param>
        /// <param name="startTime">The start time of the animation.</param>
        /// <param name="endTime">The end time of the animation.</param>
        /// <param name="alphaFunction">The alpha function to apply.</param>
        /// <since_tizen> 3 </since_tizen>
        public void AnimateBy(View target, string property, object relativeValue, int startTime, int endTime, AlphaFunction alphaFunction = null)
        {
            Property _prop = PropertyHelper.GetPropertyFromString(target, property);

            PropertyType propertyType = target.GetPropertyType(_prop.propertyIndex);
            if (propertyType.Equals(PropertyType.Float))
            {
                System.Type type = relativeValue.GetType();
                if (type.Equals(typeof(System.Int32)) || type.Equals(typeof(int)))
                {
                    int num = (int)relativeValue;
                    relativeValue = (float)num;
                }
            }

            PropertyValue val = PropertyValue.CreateFromObject(relativeValue);

            if (alphaFunction != null)
            {
                Tizen.NUI.TimePeriod time = new Tizen.NUI.TimePeriod(MilliSecondsToSeconds(startTime), MilliSecondsToSeconds(endTime - startTime));
                AnimateBy(_prop, val, alphaFunction, time);
            }
            else
            {
                Tizen.NUI.TimePeriod time = new Tizen.NUI.TimePeriod(MilliSecondsToSeconds(startTime), MilliSecondsToSeconds(endTime - startTime));
                AnimateBy(_prop, val, time);
            }
        }

        /// <summary>
        /// Animates a property to a destination value.<br />
        /// </summary>
        /// <param name="target">The target object to animate.</param>
        /// <param name="property">The target property to animate.</param>
        /// <param name="destinationValue">The destination value.</param>
        /// <param name="alphaFunction">The alpha function to apply.</param>
        /// <since_tizen> 3 </since_tizen>
        public void AnimateTo(View target, string property, object destinationValue, AlphaFunction alphaFunction = null)
        {
            Property _prop = PropertyHelper.GetPropertyFromString(target, property);

            PropertyType propertyType = target.GetPropertyType(_prop.propertyIndex);
            if (propertyType.Equals(PropertyType.Float))
            {
                System.Type type = destinationValue.GetType();
                if (type.Equals(typeof(System.Int32)) || type.Equals(typeof(int)))
                {
                    int num = (int)destinationValue;
                    destinationValue = (float)num;
                }
            }

            PropertyValue val = PropertyValue.CreateFromObject(destinationValue);

            if (alphaFunction != null)
            {
                AnimateTo(_prop, val, alphaFunction);
            }
            else
            {
                AnimateTo(_prop, val);
            }
        }

        /// <summary>
        /// Animates one or more properties to a destination value.<br />
        /// </summary>
        /// <param name="target">The target object to animate.</param>
        public void PlayAnimateTo(View target)
        {
            Clear();
            if (_properties.Length == _destValue.Length && _startTime.Length == _endTime.Length && _properties.Length == _startTime.Length)
            {
                int length = _properties.Length;
                for (int index = 0; index < length; index++)
                {
                    //object destinationValue = _destValue[index];
                    var elementType = target.GetType();
                    PropertyInfo propertyInfo = elementType.GetProperties().FirstOrDefault(fi => fi.Name == _properties[index]);
                    //var propertyInfo = elementType.GetRuntimeProperties().FirstOrDefault(p => p.Name == localName);
                    if (propertyInfo != null)
                    {
                        object destinationValue = ConvertTo(_destValue[index], propertyInfo.PropertyType);

                        if (destinationValue != null)
                        {
                            AnimateTo(target, _properties[index], destinationValue, _startTime[index], _endTime[index]);
                        }
                    }
                }
                Play();
            }
        }

        /// <summary>
        /// Animates a property to a destination value.<br />
        /// </summary>
        /// <param name="target">The target object to animate.</param>
        /// <param name="property">The target property to animate.</param>
        /// <param name="destinationValue">The destination value.</param>
        /// <param name="startTime">The start time of the animation.</param>
        /// <param name="endTime">The end time of the animation.</param>
        /// <param name="alphaFunction">The alpha function to apply.</param>
        /// <since_tizen> 3 </since_tizen>
        public void AnimateTo(View target, string property, object destinationValue, int startTime, int endTime, AlphaFunction alphaFunction = null)
        {
            Property _prop = PropertyHelper.GetPropertyFromString(target, property);

            PropertyType propertyType = target.GetPropertyType(_prop.propertyIndex);
            if (propertyType.Equals(PropertyType.Float))
            {
                System.Type type = destinationValue.GetType();
                if (type.Equals(typeof(System.Int32)) || type.Equals(typeof(int)))
                {
                    int num = (int)destinationValue;
                    destinationValue = (float)num;
                }
            }

            PropertyValue val = PropertyValue.CreateFromObject(destinationValue);

            if (alphaFunction != null)
            {
                Tizen.NUI.TimePeriod time = new Tizen.NUI.TimePeriod(MilliSecondsToSeconds(startTime), MilliSecondsToSeconds(endTime - startTime));
                AnimateTo(_prop, val, alphaFunction, time);
            }
            else
            {
                Tizen.NUI.TimePeriod time = new Tizen.NUI.TimePeriod(MilliSecondsToSeconds(startTime), MilliSecondsToSeconds(endTime - startTime));
                AnimateTo(_prop, val, time);
            }
        }

        /// <summary>
        /// Animates a property between keyframes.
        /// </summary>
        /// <param name="target">The target object to animate.</param>
        /// <param name="property">The target property to animate.</param>
        /// <param name="keyFrames">The set of time or value pairs between which to animate.</param>
        /// <param name="interpolation">The method used to interpolate between values.</param>
        /// <param name="alphaFunction">The alpha function to apply.</param>
        /// <since_tizen> 3 </since_tizen>
        public void AnimateBetween(View target, string property, KeyFrames keyFrames, Interpolation interpolation = Interpolation.Linear, AlphaFunction alphaFunction = null)
        {
            Property _prop = PropertyHelper.GetPropertyFromString(target, property);

            if (_prop.propertyIndex == Property.INVALID_INDEX)
            {
                throw new System.ArgumentException("second argument string property is invalid parameter!");
            }

            if (alphaFunction != null)
            {
                AnimateBetween(_prop, keyFrames, alphaFunction, interpolation);
            }
            else
            {
                AnimateBetween(_prop, keyFrames, interpolation);
            }
        }

        /// <summary>
        /// Animates a property between keyframes.
        /// </summary>
        /// <param name="target">The target object to animate</param>
        /// <param name="property">The target property to animate</param>
        /// <param name="keyFrames">The set of time/value pairs between which to animate</param>
        /// <param name="startTime">The start time of animation in milliseconds.</param>
        /// <param name="endTime">The end time of animation in milliseconds.</param>
        /// <param name="interpolation">The method used to interpolate between values.</param>
        /// <param name="alphaFunction">The alpha function to apply.</param>
        /// <since_tizen> 3 </since_tizen>
        public void AnimateBetween(View target, string property, KeyFrames keyFrames, int startTime, int endTime, Interpolation interpolation = Interpolation.Linear, AlphaFunction alphaFunction = null)
        {
            Property _prop = PropertyHelper.GetPropertyFromString(target, property);

            Tizen.NUI.TimePeriod time = new Tizen.NUI.TimePeriod(MilliSecondsToSeconds(startTime), MilliSecondsToSeconds(endTime - startTime));
            if (alphaFunction != null)
            {
                AnimateBetween(_prop, keyFrames, alphaFunction, time, interpolation);
            }
            else
            {
                AnimateBetween(_prop, keyFrames, time, interpolation);
            }
        }

        /// <summary>
        /// Animates the view's position and orientation through a predefined path.<br />
        /// The view will rotate to orient the supplied forward vector with the path's tangent.<br />
        /// If forward is the zero vector then no rotation will happen.<br />
        /// </summary>
        /// <param name="view">The view to animate.</param>
        /// <param name="path">It defines position and orientation.</param>
        /// <param name="forward">The vector (in local space coordinate system) will be oriented with the path's tangent direction.</param>
        /// <param name="alphaFunction">The alpha function to apply.</param>
        /// <since_tizen> 3 </since_tizen>
        public void AnimatePath(View view, Path path, Vector3 forward, AlphaFunction alphaFunction = null)
        {
            if (alphaFunction == null)
            {
                Animate(view, path, forward);
            }
            else
            {
                Animate(view, path, forward, alphaFunction);
            }
        }

        /// <summary>
        /// Animates the view's position and orientation through a predefined path.<br />
        /// The view will rotate to orient the supplied forward vector with the path's tangent.<br />
        /// If forward is the zero vector then no rotation will happen.<br />
        /// </summary>
        /// <param name="view">The view to animate.</param>
        /// <param name="path">It defines position and orientation.</param>
        /// <param name="forward">The vector (in local space coordinate system) will be oriented with the path's tangent direction.</param>
        /// <param name="startTime">The start time of the animation.</param>
        /// <param name="endTime">The end time of the animation.</param>
        /// <param name="alphaFunction">The alpha function to apply.</param>
        /// <since_tizen> 3 </since_tizen>
        public void AnimatePath(View view, Path path, Vector3 forward, int startTime, int endTime, AlphaFunction alphaFunction = null)
        {
            TimePeriod time = new TimePeriod(MilliSecondsToSeconds(startTime), MilliSecondsToSeconds(endTime - startTime));
            if (alphaFunction == null)
            {
                Animate(view, path, forward, time);
            }
            else
            {
                Animate(view, path, forward, alphaFunction, time);
            }
        }

        /// <summary>
        /// Creates an initialized animation.<br />
        /// The animation will not loop.<br />
        /// The default end action is "Cancel".<br />
        /// The default alpha function is linear.<br />
        /// </summary>
        /// <since_tizen> 3 </since_tizen>
        public Animation() : this(Interop.Animation.Animation_New(0.0f), true)
        {
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        /// <summary>
        /// Plays the animation.
        /// </summary>
        /// <since_tizen> 3 </since_tizen>
        public void Play()
        {
            Interop.Animation.Animation_Play(swigCPtr);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();

            if (DisableAnimation == true)
                Stop(EndActions.StopFinal);
        }

        /// <summary>
        /// Plays the animation from a given point.<br />
        /// The progress must be in the 0-1 interval or in the play range interval if defined,
        /// otherwise, it will be ignored.<br />
        /// </summary>
        /// <param name="progress">A value between [0,1], or between the play range if specified, from where the animation should start playing.</param>
        /// <since_tizen> 3 </since_tizen>
        public void PlayFrom(float progress)
        {
            Interop.Animation.Animation_PlayFrom(swigCPtr, progress);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        /// <summary>
        /// Plays the animation after a given delay time.<br/>
        /// The delay time is not included in the looping time.<br/>
        /// When the delay time is a negative value, it would treat as play immediately.<br/>
        /// </summary>
        /// <param name="delayMilliseconds">The delay time.</param>
        /// <since_tizen> 4 </since_tizen>
        public void PlayAfter(int delayMilliseconds)
        {
            Interop.Animation.Animation_PlayAfter(swigCPtr, MilliSecondsToSeconds(delayMilliseconds));
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        /// <summary>
        /// Pauses the animation.
        /// </summary>
        /// <since_tizen> 3 </since_tizen>
        public void Pause()
        {
            Interop.Animation.Animation_Pause(swigCPtr);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        /// <summary>
        /// Stops the animation.
        /// </summary>
        /// <since_tizen> 3 </since_tizen>
        public void Stop()
        {
            Interop.Animation.Animation_Stop(swigCPtr);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        /// <summary>
        /// Clears the animation.<br />
        /// This disconnects any objects that were being animated, effectively stopping the animation.<br />
        /// </summary>
        /// <since_tizen> 3 </since_tizen>
        public void Clear()
        {
            Interop.Animation.Animation_Clear(swigCPtr);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal static global::System.Runtime.InteropServices.HandleRef getCPtr(Animation obj)
        {
            return (obj == null) ? new global::System.Runtime.InteropServices.HandleRef(null, global::System.IntPtr.Zero) : obj.swigCPtr;
        }

        internal object ConvertTo(object value, Type toType)
        {
            Func<object> getConverter = () =>
            {
                string converterTypeName = GetTypeConverterTypeName(toType.GetTypeInfo().CustomAttributes);
                if (converterTypeName == null)
                    return null;

                Type convertertype = Type.GetType(converterTypeName);
                return Activator.CreateInstance(convertertype);
            };

            return ConvertTo(value, toType, getConverter);
        }

        internal object ConvertTo(object value, Type toType, Func<object> getConverter)
        {
            if (value == null)
                return null;

            var str = value as string;
            if (str != null)
            {
                //If there's a [TypeConverter], use it
                object converter = getConverter?.Invoke();
                var xfTypeConverter = converter as Tizen.NUI.Binding.TypeConverter;
                if (xfTypeConverter != null)
                    return value = xfTypeConverter.ConvertFromInvariantString(str);
                var converterType = converter?.GetType();
                if (converterType != null)
                {
                    var convertFromStringInvariant = converterType.GetRuntimeMethod("ConvertFromInvariantString",
                        new[] { typeof(string) });
                    if (convertFromStringInvariant != null)
                        return value = convertFromStringInvariant.Invoke(converter, new object[] { str });
                }

                //If the type is nullable, as the value is not null, it's safe to assume we want the built-in conversion
                if (toType.GetTypeInfo().IsGenericType && toType.GetGenericTypeDefinition() == typeof(Nullable<>))
                    toType = Nullable.GetUnderlyingType(toType);

                //Obvious Built-in conversions
                if (toType.GetTypeInfo().IsEnum)
                    return Enum.Parse(toType, str, true);
                if (toType == typeof(SByte))
                    return SByte.Parse(str, CultureInfo.InvariantCulture);
                if (toType == typeof(Int16))
                    return Int16.Parse(str, CultureInfo.InvariantCulture);
                if (toType == typeof(Int32))
                    return Int32.Parse(str, CultureInfo.InvariantCulture);
                if (toType == typeof(Int64))
                    return Int64.Parse(str, CultureInfo.InvariantCulture);
                if (toType == typeof(Byte))
                    return Byte.Parse(str, CultureInfo.InvariantCulture);
                if (toType == typeof(UInt16))
                    return UInt16.Parse(str, CultureInfo.InvariantCulture);
                if (toType == typeof(UInt32))
                    return UInt32.Parse(str, CultureInfo.InvariantCulture);
                if (toType == typeof(UInt64))
                    return UInt64.Parse(str, CultureInfo.InvariantCulture);
                if (toType == typeof(Single))
                    return Single.Parse(str, CultureInfo.InvariantCulture);
                if (toType == typeof(Double))
                    return Double.Parse(str, CultureInfo.InvariantCulture);
                if (toType == typeof(Boolean))
                    return Boolean.Parse(str);
                if (toType == typeof(TimeSpan))
                    return TimeSpan.Parse(str, CultureInfo.InvariantCulture);
                if (toType == typeof(DateTime))
                    return DateTime.Parse(str, CultureInfo.InvariantCulture);
                if (toType == typeof(Char))
                {
                    char c = '\0';
                    Char.TryParse(str, out c);
                    return c;
                }
                if (toType == typeof(String) && str.StartsWith("{}", StringComparison.Ordinal))
                    return str.Substring(2);
                if (toType == typeof(String))
                    return value;
                if (toType == typeof(Decimal))
                    return Decimal.Parse(str, CultureInfo.InvariantCulture);
            }

            //if the value is not assignable and there's an implicit conversion, convert
            if (value != null && !toType.IsAssignableFrom(value.GetType()))
            {
                var opImplicit = GetImplicitConversionOperator(value.GetType(), value.GetType(), toType)
                                 ?? GetImplicitConversionOperator(toType, value.GetType(), toType);
                //var opImplicit = value.GetType().GetImplicitConversionOperator(fromType: value.GetType(), toType: toType)
                //                ?? toType.GetImplicitConversionOperator(fromType: value.GetType(), toType: toType);

                if (opImplicit != null)
                {
                    value = opImplicit.Invoke(null, new[] { value });
                    return value;
                }
            }

            return value;
        }

        internal string GetTypeConverterTypeName(IEnumerable<CustomAttributeData> attributes)
        {
            var converterAttribute =
                attributes.FirstOrDefault(cad => Tizen.NUI.Binding.TypeConverterAttribute.TypeConvertersType.Contains(cad.AttributeType.FullName));
            if (converterAttribute == null)
                return null;
            if (converterAttribute.ConstructorArguments[0].ArgumentType == typeof(string))
                return (string)converterAttribute.ConstructorArguments[0].Value;
            if (converterAttribute.ConstructorArguments[0].ArgumentType == typeof(Type))
                return ((Type)converterAttribute.ConstructorArguments[0].Value).AssemblyQualifiedName;
            return null;
        }

        internal MethodInfo GetImplicitConversionOperator(Type onType, Type fromType, Type toType)
        {
#if NETSTANDARD1_0
            var mi = onType.GetRuntimeMethod("op_Implicit", new[] { fromType });
#else
            var bindingFlags = BindingFlags.Public | BindingFlags.Static | BindingFlags.FlattenHierarchy;
            var mi = onType.GetMethod("op_Implicit", bindingFlags, null, new[] { fromType }, null);
#endif
            if (mi == null) return null;
            if (!mi.IsSpecialName) return null;
            if (!mi.IsPublic) return null;
            if (!mi.IsStatic) return null;
            if (!toType.IsAssignableFrom(mi.ReturnType)) return null;

            return mi;
        }

        internal Animation(float durationSeconds) : this(Interop.Animation.Animation_New(durationSeconds), true)
        {
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();

        }

        internal Animation(Animation handle) : this(Interop.Animation.new_Animation__SWIG_1(Animation.getCPtr(handle)), true)
        {
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal Animation Assign(Animation rhs)
        {
            Animation ret = new Animation(Interop.Animation.Animation_Assign(swigCPtr, Animation.getCPtr(rhs)), false);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
            return ret;
        }

        internal void SetDuration(float seconds)
        {
            Interop.Animation.Animation_SetDuration(swigCPtr, seconds);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal float GetDuration()
        {
            float ret = Interop.Animation.Animation_GetDuration(swigCPtr);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
            return ret;
        }

        internal void SetLooping(bool looping)
        {
            Interop.Animation.Animation_SetLooping(swigCPtr, looping);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal void SetLoopCount(int count)
        {
            Interop.Animation.Animation_SetLoopCount(swigCPtr, count);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal int GetLoopCount()
        {
            int ret = Interop.Animation.Animation_GetLoopCount(swigCPtr);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
            return ret;
        }

        internal int GetCurrentLoop()
        {
            int ret = Interop.Animation.Animation_GetCurrentLoop(swigCPtr);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
            return ret;
        }

        internal bool IsLooping()
        {
            bool ret = Interop.Animation.Animation_IsLooping(swigCPtr);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
            return ret;
        }

        internal void SetEndAction(Animation.EndActions action)
        {
            Interop.Animation.Animation_SetEndAction(swigCPtr, (int)action);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal Animation.EndActions GetEndAction()
        {
            Animation.EndActions ret = (Animation.EndActions)Interop.Animation.Animation_GetEndAction(swigCPtr);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
            return ret;
        }

        internal void SetDisconnectAction(Animation.EndActions disconnectAction)
        {
            Interop.Animation.Animation_SetDisconnectAction(swigCPtr, (int)disconnectAction);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal Animation.EndActions GetDisconnectAction()
        {
            Animation.EndActions ret = (Animation.EndActions)Interop.Animation.Animation_GetDisconnectAction(swigCPtr);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
            return ret;
        }

        internal void SetDefaultAlphaFunction(AlphaFunction alpha)
        {
            Interop.Animation.Animation_SetDefaultAlphaFunction(swigCPtr, AlphaFunction.getCPtr(alpha));
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal AlphaFunction GetDefaultAlphaFunction()
        {
            AlphaFunction ret = new AlphaFunction(Interop.Animation.Animation_GetDefaultAlphaFunction(swigCPtr), true);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
            return ret;
        }

        internal void SetCurrentProgress(float progress)
        {
            Interop.Animation.Animation_SetCurrentProgress(swigCPtr, progress);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal float GetCurrentProgress()
        {
            float ret = Interop.Animation.Animation_GetCurrentProgress(swigCPtr);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
            return ret;
        }

        internal void SetSpeedFactor(float factor)
        {
            Interop.Animation.Animation_SetSpeedFactor(swigCPtr, factor);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal float GetSpeedFactor()
        {
            float ret = Interop.Animation.Animation_GetSpeedFactor(swigCPtr);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
            return ret;
        }

        internal void SetPlayRange(Vector2 range)
        {
            Interop.Animation.Animation_SetPlayRange(swigCPtr, Vector2.getCPtr(range));
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal Vector2 GetPlayRange()
        {
            Vector2 ret = new Vector2(Interop.Animation.Animation_GetPlayRange(swigCPtr), true);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
            return ret;
        }

        internal Animation.States GetState()
        {
            Animation.States ret = (Animation.States)Interop.Animation.Animation_GetState(swigCPtr);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
            return ret;
        }

        internal AnimationSignal FinishedSignal()
        {
            AnimationSignal ret = new AnimationSignal(Interop.Animation.Animation_FinishedSignal(swigCPtr), false);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
            return ret;
        }

        internal AnimationSignal ProgressReachedSignal()
        {
            AnimationSignal ret = new AnimationSignal(Interop.Animation.Animation_ProgressReachedSignal(swigCPtr), false);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
            return ret;
        }

        internal void AnimateBy(Property target, PropertyValue relativeValue)
        {
            Interop.Animation.Animation_AnimateBy__SWIG_0(swigCPtr, Property.getCPtr(target), PropertyValue.getCPtr(relativeValue));
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal void AnimateBy(Property target, PropertyValue relativeValue, AlphaFunction alpha)
        {
            Interop.Animation.Animation_AnimateBy__SWIG_1(swigCPtr, Property.getCPtr(target), PropertyValue.getCPtr(relativeValue), AlphaFunction.getCPtr(alpha));
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal void AnimateBy(Property target, PropertyValue relativeValue, TimePeriod period)
        {
            Interop.Animation.Animation_AnimateBy__SWIG_2(swigCPtr, Property.getCPtr(target), PropertyValue.getCPtr(relativeValue), TimePeriod.getCPtr(period));
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal void AnimateBy(Property target, PropertyValue relativeValue, AlphaFunction alpha, TimePeriod period)
        {
            Interop.Animation.Animation_AnimateBy__SWIG_3(swigCPtr, Property.getCPtr(target), PropertyValue.getCPtr(relativeValue), AlphaFunction.getCPtr(alpha), TimePeriod.getCPtr(period));
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal void AnimateTo(Property target, PropertyValue destinationValue)
        {
            Interop.Animation.Animation_AnimateTo__SWIG_0(swigCPtr, Property.getCPtr(target), PropertyValue.getCPtr(destinationValue));
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal void AnimateTo(Property target, PropertyValue destinationValue, AlphaFunction alpha)
        {
            Interop.Animation.Animation_AnimateTo__SWIG_1(swigCPtr, Property.getCPtr(target), PropertyValue.getCPtr(destinationValue), AlphaFunction.getCPtr(alpha));
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal void AnimateTo(Property target, PropertyValue destinationValue, TimePeriod period)
        {
            Interop.Animation.Animation_AnimateTo__SWIG_2(swigCPtr, Property.getCPtr(target), PropertyValue.getCPtr(destinationValue), TimePeriod.getCPtr(period));
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal void AnimateTo(Property target, PropertyValue destinationValue, AlphaFunction alpha, TimePeriod period)
        {
            Interop.Animation.Animation_AnimateTo__SWIG_3(swigCPtr, Property.getCPtr(target), PropertyValue.getCPtr(destinationValue), AlphaFunction.getCPtr(alpha), TimePeriod.getCPtr(period));
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal void AnimateBetween(Property target, KeyFrames keyFrames)
        {
            Interop.Animation.Animation_AnimateBetween__SWIG_0(swigCPtr, Property.getCPtr(target), KeyFrames.getCPtr(keyFrames));
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal void AnimateBetween(Property target, KeyFrames keyFrames, Animation.Interpolation interpolation)
        {
            Interop.Animation.Animation_AnimateBetween__SWIG_1(swigCPtr, Property.getCPtr(target), KeyFrames.getCPtr(keyFrames), (int)interpolation);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal void AnimateBetween(Property target, KeyFrames keyFrames, AlphaFunction alpha)
        {
            Interop.Animation.Animation_AnimateBetween__SWIG_2(swigCPtr, Property.getCPtr(target), KeyFrames.getCPtr(keyFrames), AlphaFunction.getCPtr(alpha));
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal void AnimateBetween(Property target, KeyFrames keyFrames, AlphaFunction alpha, Animation.Interpolation interpolation)
        {
            Interop.Animation.Animation_AnimateBetween__SWIG_3(swigCPtr, Property.getCPtr(target), KeyFrames.getCPtr(keyFrames), AlphaFunction.getCPtr(alpha), (int)interpolation);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal void AnimateBetween(Property target, KeyFrames keyFrames, TimePeriod period)
        {
            Interop.Animation.Animation_AnimateBetween__SWIG_4(swigCPtr, Property.getCPtr(target), KeyFrames.getCPtr(keyFrames), TimePeriod.getCPtr(period));
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal void AnimateBetween(Property target, KeyFrames keyFrames, TimePeriod period, Animation.Interpolation interpolation)
        {
            Interop.Animation.Animation_AnimateBetween__SWIG_5(swigCPtr, Property.getCPtr(target), KeyFrames.getCPtr(keyFrames), TimePeriod.getCPtr(period), (int)interpolation);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal void AnimateBetween(Property target, KeyFrames keyFrames, AlphaFunction alpha, TimePeriod period)
        {
            Interop.Animation.Animation_AnimateBetween__SWIG_6(swigCPtr, Property.getCPtr(target), KeyFrames.getCPtr(keyFrames), AlphaFunction.getCPtr(alpha), TimePeriod.getCPtr(period));
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal void AnimateBetween(Property target, KeyFrames keyFrames, AlphaFunction alpha, TimePeriod period, Animation.Interpolation interpolation)
        {
            Interop.Animation.Animation_AnimateBetween__SWIG_7(swigCPtr, Property.getCPtr(target), KeyFrames.getCPtr(keyFrames), AlphaFunction.getCPtr(alpha), TimePeriod.getCPtr(period), (int)interpolation);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal void Animate(View view, Path path, Vector3 forward)
        {
            Interop.Animation.Animation_Animate__SWIG_0(swigCPtr, View.getCPtr(view), Path.getCPtr(path), Vector3.getCPtr(forward));
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal void Animate(View view, Path path, Vector3 forward, AlphaFunction alpha)
        {
            Interop.Animation.Animation_Animate__SWIG_1(swigCPtr, View.getCPtr(view), Path.getCPtr(path), Vector3.getCPtr(forward), AlphaFunction.getCPtr(alpha));
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal void Animate(View view, Path path, Vector3 forward, TimePeriod period)
        {
            Interop.Animation.Animation_Animate__SWIG_2(swigCPtr, View.getCPtr(view), Path.getCPtr(path), Vector3.getCPtr(forward), TimePeriod.getCPtr(period));
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal void Animate(View view, Path path, Vector3 forward, AlphaFunction alpha, TimePeriod period)
        {
            Interop.Animation.Animation_Animate__SWIG_3(swigCPtr, View.getCPtr(view), Path.getCPtr(path), Vector3.getCPtr(forward), AlphaFunction.getCPtr(alpha), TimePeriod.getCPtr(period));
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal void Show(View view, float delaySeconds)
        {
            Interop.Animation.Animation_Show(swigCPtr, View.getCPtr(view), delaySeconds);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        internal void Hide(View view, float delaySeconds)
        {
            Interop.Animation.Animation_Hide(swigCPtr, View.getCPtr(view), delaySeconds);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        /// <summary>
        /// To make animation instance be disposed.
        /// </summary>
        /// <since_tizen> 3 </since_tizen>
        protected override void Dispose(DisposeTypes type)
        {
            if (this != null)
            {
                if (_animationFinishedEventCallback != null)
                {
                    FinishedSignal().Disconnect(_finishedCallbackOfNative);
                }

                if (_animationProgressReachedEventCallback != null)
                {

                    ProgressReachedSignal().Disconnect(_animationProgressReachedEventCallback);
                }
            }

            if(disposed)
            {
                return;
            }

            if (this != null)
            {
                this.Clear();
            }

            //Release your own unmanaged resources here.
            //You should not access any managed member here except static instance.
            //because the execution order of Finalizes is non-deterministic.

            if (swigCPtr.Handle != global::System.IntPtr.Zero)
            {
                if (swigCMemOwn)
                {
                    swigCMemOwn = false;
                    Interop.Animation.delete_Animation(swigCPtr);
                }
                swigCPtr = new global::System.Runtime.InteropServices.HandleRef(null, global::System.IntPtr.Zero);
            }

            base.Dispose(type);
        }

        private void OnFinished(IntPtr data)
        {
            if (_animationFinishedEventHandler != null)
            {
                //here we send all data to user event handlers
                _animationFinishedEventHandler(this, null);
            }
        }

        private void OnProgressReached(IntPtr data)
        {
            if (_animationProgressReachedEventHandler != null)
            {
                //here we send all data to user event handlers
                _animationProgressReachedEventHandler(this, null);
            }
        }

        private float MilliSecondsToSeconds(int millisec)
        {
            return (float)millisec / 1000.0f;
        }

        private int SecondsToMilliSeconds(float sec)
        {
            return (int)(sec * 1000);
        }
    }
}