public void ReverseKeyFrames(double startTime, double endTime)
{
if (this.KeyFrameCount == 0)
{
return;
}
this.ConvertKeySplineResourcesToLocalValues();
int capacity = 0;
IList <KeyFrameSceneNode> keyFrameCollection = this.KeyFrameCollection;
int index1 = 0;
while (index1 < keyFrameCollection.Count && keyFrameCollection[index1].Time < startTime)
{
++index1;
}
int index2 = index1;
for (; index1 < keyFrameCollection.Count && keyFrameCollection[index1].Time <= endTime; ++index1)
{
++capacity;
}
if (capacity == 0)
{
return;
}
bool flag = startTime == 0.0 && keyFrameCollection[0].Time != 0.0;
if (flag)
{
++capacity;
}
List <KeyFrameSceneNode> list1 = new List <KeyFrameSceneNode>(capacity);
List <Point?> list2 = new List <Point?>(capacity);
if (flag)
{
KeyFrameSceneNode keyFrameSceneNode = this.IsDiscreteOnly ? (KeyFrameSceneNode)KeyFrameSceneNode.Factory.Instantiate(this.ViewModel, this.GetKeyFrameType(KeyFrameInterpolationType.Discrete)) : (KeyFrameSceneNode)KeyFrameSceneNode.Factory.Instantiate(this.ViewModel, this.GetKeyFrameType(KeyFrameInterpolationType.Spline));
keyFrameSceneNode.Time = 0.0;
SceneElement sceneElement = this.TargetElement as SceneElement;
IViewObject viewObject = sceneElement.ViewTargetElement;
if (PlatformTypes.Viewport3D.Equals((object)viewObject.GetIType((ITypeResolver)this.ProjectContext)))
{
viewObject = sceneElement.ViewObject;
}
PropertyReference propertyReference = DesignTimeProperties.GetAppliedShadowPropertyReference(this.TargetProperty, (ITypeId)this.Type);
keyFrameSceneNode.Value = viewObject.GetBaseValue(propertyReference);
list1.Add(keyFrameSceneNode);
if (keyFrameCollection[0].InterpolationType == KeyFrameInterpolationType.Spline && keyFrameCollection[0].KeySpline != null)
{
list2.Add(new Point?(keyFrameCollection[0].KeySpline.ControlPoint1));
}
else if (!this.IsDiscreteOnly)
{
list2.Add(new Point?(new Point()));
}
else
{
list2.Add(new Point?());
}
}
int num1 = 0;
while (list1.Count < capacity)
{
if (keyFrameCollection[index2].InterpolationType != KeyFrameInterpolationType.Discrete)
{
list2.Add(new Point?(keyFrameCollection[index2].EaseOutControlPoint));
}
else
{
list2.Add(new Point?());
}
list1.Add(keyFrameCollection[index2]);
keyFrameCollection.RemoveAt(index2);
++num1;
}
for (int index3 = 0; index3 < list1.Count; ++index3)
{
KeyFrameSceneNode keyFrameSceneNode1 = list1[index3];
Point? nullable1 = list2[index3];
Point? nullable2 = new Point?();
if (keyFrameSceneNode1.InterpolationType != KeyFrameInterpolationType.Discrete)
{
nullable2 = new Point?(keyFrameSceneNode1.EaseInControlPoint);
}
double num2 = endTime - (keyFrameSceneNode1.Time - startTime);
KeyFrameSceneNode node;
if (nullable1.HasValue)
{
KeyFrameSceneNode keyFrameSceneNode2 = (KeyFrameSceneNode)KeyFrameSceneNode.Factory.Instantiate(this.ViewModel, this.GetKeyFrameType(KeyFrameInterpolationType.Spline));
keyFrameSceneNode2.ValueNode = keyFrameSceneNode1.ValueNode.Clone(keyFrameSceneNode2.DocumentContext);
node = keyFrameSceneNode2;
node.EaseInControlPoint = new Point(1.0 - nullable1.Value.X, 1.0 - nullable1.Value.Y);
}
else
{
KeyFrameSceneNode keyFrameSceneNode2 = (KeyFrameSceneNode)KeyFrameSceneNode.Factory.Instantiate(this.ViewModel, this.GetKeyFrameType(KeyFrameInterpolationType.Discrete));
keyFrameSceneNode2.ValueNode = keyFrameSceneNode1.ValueNode.Clone(keyFrameSceneNode2.DocumentContext);
node = keyFrameSceneNode2;
}
node.Time = num2;
keyFrameCollection.Insert(index2, node);
if (nullable2.HasValue)
{
Point newEaseOut = new Point(1.0 - nullable2.Value.X, 1.0 - nullable2.Value.Y);
KeyFrameSceneNode.SetEaseOutControlPoint(node, newEaseOut);
}
}
if (!flag)
{
return;
}
Point?nullable = new Point?(keyFrameCollection[0].EaseOutControlPoint);
if (nullable.HasValue)
{
this.SetHandoffKeyFrameEaseOutPoint(nullable.Value);
}
this.RemoveKeyFrame(0.0);
}
