void saveSplitterProportions(final PlaceInGrid placeInGrid) {
    if (getRootPane() == null) return;
    final Rectangle bounds = getBounds();
    if (bounds.width == 0 && bounds.height == 0) return;

    final GridCellImpl cell = myPlaceInGrid2Cell.get(placeInGrid);

    if (!cell.isValidForCalculateProportions()) return;

    final TabImpl tab = (TabImpl)getTab();

    if (tab != null) {
      switch (placeInGrid) {
        case left:
          tab.setLeftProportion(getLeftProportion());
          break;
        case right:
          tab.setRightProportion(getRightProportion());
          break;
        case bottom:
          tab.setBottomProportion(getBottomPropertion());
        case center:
          break;
      }
    }
  }
void saveSplitterProportions(final PlaceInGrid placeInGrid)