protected static bool Freeze(Freezable freezable,
bool isChecking)
{
if (freezable.frozen)
{
return(true);
}
LocalValueEnumerator e = freezable.GetLocalValueEnumerator();
while (e.MoveNext())
{
var value = e.Current.Value;
if (value is Freezable)
{
if (!(value as Freezable).FreezeCore(isChecking))
{
return(false);
}
}
}
if (!isChecking)
{
freezable.frozen = true;
}
return(true);
}
internal void cloneImpl(Freezable source, cloneDelegate cloneFreezable, bool freeze)
{
var e = source.GetLocalValueEnumerator();
while (e.MoveNext())
{
var value = e.Current.Value;
if (e.Current.Property.ReadOnly || value == DependencyProperty.UnsetValue || value == null)
{
continue;
}
if (value is Freezable && !(freeze && (value as Freezable).frozen))
{
value = cloneFreezable(value as Freezable);
}
SetValue(e.Current.Property, value);
}
if (freeze)
{
Freeze();
}
}
private static bool CompareFreezables(Freezable firstFreezable, Freezable secondFreezable, int depth)
{
if (firstFreezable == null && secondFreezable == null)
{
return(true);
}
if (firstFreezable == null || secondFreezable == null || firstFreezable.GetType() != secondFreezable.GetType())
{
return(false);
}
IEnumerator enumerator1 = (IEnumerator)firstFreezable.GetLocalValueEnumerator();
IEnumerator enumerator2 = (IEnumerator)secondFreezable.GetLocalValueEnumerator();
while (enumerator1.MoveNext())
{
if (!enumerator2.MoveNext() || !PropertyUtilities.Compare(enumerator1.Current, enumerator2.Current, depth + 1))
{
return(false);
}
}
return(!enumerator2.MoveNext());
}