public KeyFrameControl(Game game)
            : base(game)
        {
            int hOffset = 16;
            int x1 = hOffset;
            int x2 = 1024 - hOffset;
            int y1 = 768 - 96;
            int y2 = 768;

            spriteBatch = new SpriteBatch(Game.GraphicsDevice);

            frameBar = new DrawableRect(x1, y1, x2, y2, Color.LightGray);
            currentFrameBar = new DrawableRect(-2, 0, 2, 100, Color.Yellow);
        }
 /*
 public void DrawKeyFrameIndicator(int index)
 {
     var rect = new DrawableRect(-1, 0, 1, 100, Color.Yellow);
     DrawRect(rect, Matrix.CreateTranslation(16 + ((1024 - 2 * 16) / 250f) * index, 768 - 100, 0));
 }
 */
 public void DrawRect(DrawableRect rect, Matrix transformation)
 {
     var effect = EffectCatalog.ScreenSpaceEffect;
     effect.Parameters["World"].SetValue(transformation);
     effect.CurrentTechnique.Passes[0].Apply();
     GraphicsDevice.DrawUserIndexedPrimitives(PrimitiveType.TriangleList, rect.Vertices, 0, rect.Vertices.Length, rect.Indices, 0, rect.Indices.Length / 3);
 }