private int getSpecialWidth() {
    AllBinaryTiledLayer terrainTiledLayer = geographicMapInterface.getAllBinaryTiledLayer();
    DisplayInfoSingleton displayInfo = DisplayInfoSingleton.getInstance();

    if (terrainTiledLayer.getWidth() > displayInfo.getLastWidth()) {
      return terrainTiledLayer.getWidth() - displayInfo.getLastWidth();
    } else {
      return displayInfo.getLastWidth()
          - terrainTiledLayer.getWidth()
          + terrainTiledLayer.getCellWidth();
    }
  }
  public void scrollMiddleX() throws Exception {
    AllBinaryTiledLayer terrainTiledLayer = geographicMapInterface.getAllBinaryTiledLayer();
    DisplayInfoSingleton displayInfo = DisplayInfoSingleton.getInstance();

    // PreLogUtil.put(diffX + CommonSeps.getInstance().SPACE + CommonSeps.getInstance().SPACE +
    // terrainTiledLayer.getWidth() + CommonSeps.getInstance().SPACE + displayInfo.getLastWidth(),
    // this, "scrollMiddleX");

    this.move(-terrainTiledLayer.getX(), 0);

    if (terrainTiledLayer.getWidth() < displayInfo.getLastWidth()) {
      int diffX = ((displayInfo.getLastWidth() - terrainTiledLayer.getWidth()) >> 1);
      this.move(-diffX, 0);
    } else {
      int diffX = ((terrainTiledLayer.getWidth() - displayInfo.getLastWidth()) >> 1);
      this.move(diffX, 0);
    }
  }
  // Graphics.HCENTER & Graphics.TOP
  public void scrollY(int anchor) throws Exception {
    AllBinaryTiledLayer terrainTiledLayer = geographicMapInterface.getAllBinaryTiledLayer();
    DisplayInfoSingleton displayInfo = DisplayInfoSingleton.getInstance();

    if (anchor == Graphics.TOP) {
      LogUtil.put(LogFactory.getInstance("Top", this, "scrollY"));
    } else if (anchor == Graphics.BOTTOM) {
      LogUtil.put(LogFactory.getInstance("Bottom", this, "scrollY"));
      int diffY = (terrainTiledLayer.getHeight() - displayInfo.getLastHeight());
      this.move(0, diffY);
    } else if (anchor == Graphics.VCENTER) {
      LogUtil.put(LogFactory.getInstance("Center", this, "scrollY"));
      // Already sees bottom but I want the map at the Center
      int diffY = (terrainTiledLayer.getHeight() - displayInfo.getLastHeight()) / 2;
      this.move(0, diffY);
    } else {
      throw new Exception("No Such Anchor Supported");
    }
  }
  public LimitCommandsVisitor() {
    DisplayInfoSingleton displayInfo = DisplayInfoSingleton.getInstance();

    isNotSmallDisplay =
        (displayInfo.isPortrait()
                && displayInfo.getLastHeight() > ScreenInfo.getInstance().SMALL_WIDTH)
            || (!displayInfo.isPortrait()
                && displayInfo.getLastHeight() > ScreenInfo.getInstance().SMALL_HEIGHT);
  }