protected override void OnRedrawing()
{
InvalidElementAdorner invalidElementAdorner = this.AdornerList == null || this.AdornerList.Count <= 0 ? (InvalidElementAdorner)null : (InvalidElementAdorner)this.AdornerList[0];
if (invalidElementAdorner == null)
{
return;
}
SceneView defaultView = this.Element.ViewModel.DefaultView;
bool flag = this.cachedSizes == null || this.cachedTransforms == null;
for (int index = 0; !flag && index < invalidElementAdorner.TargetElements.Count; ++index)
{
SceneElement sceneElement = invalidElementAdorner.TargetElements[index];
if (defaultView.IsInArtboard(sceneElement))
{
Size size;
Matrix matrix;
this.GetElementLayout(sceneElement, out size, out matrix);
flag = !size.Equals(this.cachedSizes[index]) || matrix != this.cachedTransforms[index];
}
else
{
flag = true;
}
}
if (!flag)
{
return;
}
this.InvalidateStructure();
}
protected override void CreateAdorners()
{
InvalidElementAdorner invalidElementAdorner = new InvalidElementAdorner((AdornerSet)this);
this.AddAdorner((Adorner)invalidElementAdorner);
this.cachedSizes = new List <Size>(invalidElementAdorner.TargetElements.Count);
this.cachedTransforms = new List <Matrix>(invalidElementAdorner.TargetElements.Count);
for (int index = 0; index < invalidElementAdorner.TargetElements.Count; ++index)
{
Size size;
Matrix matrix;
this.GetElementLayout(invalidElementAdorner.TargetElements[index], out size, out matrix);
this.cachedSizes.Add(size);
this.cachedTransforms.Add(matrix);
}
}
