public void addLayoutComponent(String string, Component component) {  }
public void addLayoutComponent(String key, Component component) { if (key == VIEWPORT) viewport = (JViewport) component; else if (key == VERTICAL_SCROLLBAR) verticalScrollBar = (JScrollBar) component; else if (key == HORIZONTAL_SCROLLBAR) horizontalScrollBar = (JScrollBar) component; else if (key == ROW_HEADER) rowHeader = (JViewport) component; else if (key == COLUMN_HEADER) columnHeader = (JViewport) component; else if (key == LOWER_RIGHT_CORNER) lowerRight = component; else if (key == UPPER_RIGHT_CORNER) upperRight = component; else if (key == LOWER_LEFT_CORNER) lowerLeft = component; else if (key == UPPER_LEFT_CORNER) upperLeft = component; }
	public void addLayoutComponent(String string, Component component) {		// TODO	} // addLayoutComponent()