public static int getMenuBarWidth(Context context) {
   if (GraphicUtilityClass.isLandscape(context)) {
     return GraphicUtilityClass.getMinTouchWidth(context);
   } else {
     return GraphicUtilityClass.getDisplayWidth(context);
   }
 }
  @Override
  protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    int width = MeasureSpec.getSize(widthMeasureSpec);
    int height = MeasureSpec.getSize(heightMeasureSpec);

    synchronized (this) {
      // System.out.println("ScreenMenuBar: onMeasure _buttons length=" + _buttons.length);
      if (_buttons != null && _buttons.length > 0) {
        int h_interval = 0;
        int v_interval = 0;
        if (_landscape_mode) {
          v_interval = height / _buttons.length;
        } else {
          h_interval = width / _buttons.length;
        }
        int max_size = 0;
        for (int i = 0; i < _buttons.length; i++) {
          if (_landscape_mode) {
            _buttons[i].measure(
                MeasureSpec.makeMeasureSpec(
                    GraphicUtilityClass.getMinTouchWidth(getContext()), MeasureSpec.AT_MOST),
                MeasureSpec.makeMeasureSpec(v_interval, MeasureSpec.AT_MOST));
            if (max_size < _buttons[i].getMeasuredWidth()) {
              max_size = _buttons[i].getMeasuredWidth();
            }
          } else {
            _buttons[i].measure(
                MeasureSpec.makeMeasureSpec(h_interval, MeasureSpec.AT_MOST),
                MeasureSpec.makeMeasureSpec(height, MeasureSpec.AT_MOST));
            if (max_size < _buttons[i].getMeasuredHeight()) {
              max_size = _buttons[i].getMeasuredHeight();
            }
          }
        }
        if (_landscape_mode) {
          super.setMeasuredDimension(max_size, height);
        } else {
          super.setMeasuredDimension(width, max_size);
        }
      } else {
        super.setMeasuredDimension(0, 0);
      }
    }
  }