public  QuadGrid( int  cols,  int  rows) {
        m_cols = cols;
        m_rows = rows;
         this .setLayout( new  BorderLayout());
         this .setBackground(Color.ORANGE);
         if  (m_rows> 0 ) {
            // create footer panel
            panelFooter =  new  JPanel( new  BorderLayout());
             this .add(panelFooter, BorderLayout.SOUTH);
             if  (m_cols> 0 ) {
                // create splitted footer
                splitFOOTER =  new  JSplitPane(JSplitPane.HORIZONTAL_SPLIT);
                splitFOOTER.setDividerSize( 2 );
                tableFIXFOOTER =  new  JTable();
                tableFIXFOOTER.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
                scFIXFOOTER =  new  JScrollPane(tableFIXFOOTER);
                
                splitFOOTER.setLeftComponent(scFIXFOOTER);
                
                tableFOOTER =  new  JTable();
                tableFOOTER.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
                scFOOTER =  new  JScrollPane();
                scFOOTER.setViewportView(tableFOOTER);
                splitFOOTER.setRightComponent(scFOOTER);
                panelFooter.add(splitFOOTER,BorderLayout.CENTER);
            }  else  {
                // create simple footer
                tableFOOTER =  new  JTable();
                tableFOOTER.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
                scFOOTER =  new  JScrollPane(tableFOOTER);
                panelFooter.add(scFOOTER,BorderLayout.CENTER);
            }
        }
        // create main tables
         if  (m_cols> 0 ) {
            // create splitted footer
            splitMAIN =  new  JSplitPane(JSplitPane.HORIZONTAL_SPLIT);
            splitMAIN.setDividerSize( 2 );
            tableFIXMAIN =  new  JTable();
            tableFIXMAIN.setAutoResizeMode(JTable.AUTO_RESIZE_LAST_COLUMN);
            scFIXMAIN =  new  JScrollPane(tableFIXMAIN);
            splitMAIN.setLeftComponent(scFIXMAIN);
            tableMAIN =  new  JTable();
            tableMAIN.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
            scMAIN =  new  JScrollPane(tableMAIN);
            splitMAIN.setRightComponent(scMAIN);
            add(splitMAIN,BorderLayout.CENTER);
        }  else  {
            // create simple footer
            tableMAIN =  new  JTable();
            tableMAIN.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
            scMAIN =  new  JScrollPane(tableMAIN);
            add(scMAIN,BorderLayout.CENTER);
        }
        // create Split Sync
         if  (splitMAIN!= null ) {
            splitMAIN.addPropertyChangeListener( new  PropertyChangeListener() {
                 public   void  propertyChange(PropertyChangeEvent evt) {
                     if  (splitFOOTER!= null ) {
                        splitFOOTER.setDividerLocation(splitMAIN.getDividerLocation());
                    }
                }
            });
        }
        
        // sync scrollbars
         if  ((scMAIN!= null ) && (scFIXMAIN!= null )) {
            scMAIN.setVerticalScrollBar(scFIXMAIN.getVerticalScrollBar());
        }
         if  ((tableMAIN!= null ) && (tableFIXMAIN!= null )) {
            tableMAIN.setSelectionModel(tableFIXMAIN.getSelectionModel());
        }
         if  ((scMAIN!= null ) && (scFOOTER!= null )) {
            scMAIN.setHorizontalScrollBar(scFOOTER.getHorizontalScrollBar());
        }
         if  ((scFIXMAIN!= null ) && (scFIXFOOTER!= null )) {
            scFIXMAIN.setHorizontalScrollBar(scFIXFOOTER.getHorizontalScrollBar());
        }
        
        panelFooter.setPreferredSize( new  Dimension( 2000 , 5 +m_rows*tableFOOTER.getRowHeight()));
        
         if  (splitMAIN!= null ) {
            splitMAIN.setDividerLocation( 250 );
        }
        
    }

((JViewport) this .getParent()).setPreferredSize( this .getPreferredSize())