/// <summary>
/// Pop the current state on top of the stack.
/// </summary>
public void Pop()
{
if (IsDisposed)
{
throw new ObjectDisposedException("GraphicsStateSetStack");
}
if (_StateSetStack.Count == 1)
{
throw new InvalidOperationException("stack underflow");
}
GraphicsStateSet currentStateSet = Current;
// Possibly dispose this state set
currentStateSet.DecRef();
// Restore previous state set
_StateSetStack.RemoveLast();
}
