public static void create(DrawingHost drawingHost)
{
Debug.Assert(instance == null, "create() should only be called once.");
instance = new ProblemDrawer(drawingHost);
UIProblemDrawer.create(instance.invokeDraw, instance.invokeClear, instance.invokeReset);
}
private Dictionary <GeometryTutorLib.ConcreteAST.Circle, Circle> circles; //Keep track of logical to graphical circles
/// <summary>
/// Create a new problem drawer.
/// </summary>
/// <param name="drawing">The drawingHost.</param>
private ProblemDrawer(DrawingHost drawingHost)
{
this.drawingHost = drawingHost;
}
