public GraphicsState Save()
{
var currentState = new GraphicsState(this);
restoreStack.Push(currentState);
return currentState;
}
public void Restore(GraphicsState state)
{
var restoreState = restoreStack.Pop();
if (state != restoreState) {
throw new Exception("UG.Graphics Restore state match failure");
}
restoreState.Restore();
}
