Source Code : Fixed Table Row Example

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Fixed Table Row Example

 
// Example from http://www.crionics.com/products/opensource/faq/swing_ex/SwingExamples.html

/* (swing1.1.1beta1) */

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.event.AdjustmentEvent;
import java.awt.event.AdjustmentListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JFrame;
import javax.swing.JScrollBar;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.UIManager;
import javax.swing.table.AbstractTableModel;

/**
 * @version 1.0 03/05/99
 */
public class FixedRowExample extends JFrame {
  Object[][] data;

  Object[] column;

  JTable fixedTable, table;

  private int FIXED_NUM = 2;

  public FixedRowExample() {
    super("Fixed Row Example");

    data = new Object[][] { { "a", "", "", "", "", "" },
        { "", "b", "", "", "", "" }, { "", "", "c", "", "", "" },
        { "", "", "", "d", "", "" }, { "", "", "", "", "e", "" },
        { "", "", "", "", "", "f" },
        { "fixed1", "", "", "", "", "", "", "" },
        { "fixed2", "", "", "", "", "", "", "" } };
    column = new Object[] { "A", "B", "C", "D", "E", "F" };

    AbstractTableModel model = new AbstractTableModel() {
      public int getColumnCount() {
        return column.length;
      }

      public int getRowCount() {
        return data.length - FIXED_NUM;
      }

      public String getColumnName(int col) {
        return (String) column[col];
      }

      public Object getValueAt(int row, int col) {
        return data[row][col];
      }

      public void setValueAt(Object obj, int row, int col) {
        data[row][col] = obj;
      }

      public boolean CellEditable(int row, int col) {
        return true;
      }
    };

    AbstractTableModel fixedModel = new AbstractTableModel() {
      public int getColumnCount() {
        return column.length;
      }

      public int getRowCount() {
        return FIXED_NUM;
      }

      public Object getValueAt(int row, int col) {
        return data[row + (data.length - FIXED_NUM)][col];
      }
    };

    table = new JTable(model);
    table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
    table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

    fixedTable = new JTable(fixedModel);
    fixedTable.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
    fixedTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

    JScrollPane scroll = new JScrollPane(table);
    scroll
        .setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);

    JScrollPane fixedScroll = new JScrollPane(fixedTable) {
      public void setColumnHeaderView(Component view) {
      } // work around
    }; //
    // fixedScroll.setColumnHeader(null);

    fixedScroll
        .setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
    JScrollBar bar = fixedScroll.getVerticalScrollBar();
    JScrollBar dummyBar = new JScrollBar() {
      public void paint(Graphics g) {
      }
    };
    dummyBar.setPreferredSize(bar.getPreferredSize());
    fixedScroll.setVerticalScrollBar(dummyBar);

    final JScrollBar bar1 = scroll.getHorizontalScrollBar();
    JScrollBar bar2 = fixedScroll.getHorizontalScrollBar();
    bar2.addAdjustmentListener(new AdjustmentListener() {
      public void adjustmentValueChanged(AdjustmentEvent e) {
        bar1.setValue(e.getValue());
      }
    });

    scroll.setPreferredSize(new Dimension(400, 100));
    fixedScroll.setPreferredSize(new Dimension(400, 52)); // Hmm...
    getContentPane().add(scroll, BorderLayout.CENTER);
    getContentPane().add(fixedScroll, BorderLayout.SOUTH);
  }

  public static void main(String[] args) {
    FixedRowExample frame = new FixedRowExample();
    frame.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    });
    frame.pack();
    frame.setVisible(true);
  }
}



           
         
  

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