tablesorterdemo.java

通讯采集软件

package collector.gui.test;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;

public class TableSorterDemo
    extends JFrame {
  private boolean DEBUG = true;

  public TableSorterDemo() {
    super("TableSorterDemo");
    MyTableModel myModel = new MyTableModel();
    TableSorter sorter = new TableSorter(myModel); //ADDED THIS
    JTable table = new JTable(sorter); //NEW
    sorter.addMouseListenerToHeaderInTable(table); //ADDED THIS
    table.setPreferredScrollableViewportSize(new Dimension(500, 70));
    JScrollPane scrollPane = new JScrollPane(table);
    getContentPane().add(scrollPane, BorderLayout.CENTER);
    addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    });
  }

  class MyTableModel
      extends AbstractTableModel {
    final String[] columnNames = {
        "First Name",
        "Last Name",
        "Sport",
        "# of Years",
        "Vegetarian"};
    final Object[][] data = {
        {
        "Mary", "Campione",
        "Snowboarding", new Integer(5), new Boolean(false)}
        , {
        "Alison", "Huml",
        "Rowing", new Integer(3), new Boolean(true)}
        , {
        "Kathy", "Walrath",
        "Chasing toddlers", new Integer(2), new Boolean(false)}
        , {
        "Sharon", "Zakhour",
        "Speed reading", new Integer(20), new Boolean(true)}
        , {
        "Angela", "Lih",
        "Teaching high school", new Integer(4), new Boolean(false)}
    };

    public int getColumnCount() {
      return columnNames.length;
    }

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

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

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

    public Class getColumnClass(int c) {
      return getValueAt(0, c).getClass();
    }

    public boolean isCellEditable(int row, int col) {
      if (col < 2) {
        return false;
      }
      else {
        return true;
      }
    }

    public void setValueAt(Object value, int row, int col) {
      if (DEBUG) {
        System.out.println("Setting value at " + row + "," + col
                           + " to " + value
                           + " (an instance of "
                           + value.getClass() + ")");
      }

      if (data[0][col] instanceof Integer
          && ! (value instanceof Integer)) {
        try {
          data[row][col] = new Integer(value.toString());
          fireTableCellUpdated(row, col);
        }
        catch (NumberFormatException e) {
          JOptionPane.showMessageDialog(TableSorterDemo.this,
                                        "The \"" + getColumnName(col)
                                        +
              "\" column accepts only integer values.");
        }
      }
      else {
        data[row][col] = value;
        fireTableCellUpdated(row, col);
      }

      if (DEBUG) {
        System.out.println("New value of data:");
        printDebugData();
      }
    }

    private void printDebugData() {
      int numRows = getRowCount();
      int numCols = getColumnCount();

      for (int i = 0; i < numRows; i++) {
        System.out.print("    row " + i + ":");
        for (int j = 0; j < numCols; j++) {
          System.out.print("  " + data[i][j]);
        }
        System.out.println();
      }
      System.out.println("--------------------------");
    }
  }

  public static void main(String[] args) {
    TableSorterDemo frame = new TableSorterDemo();
    frame.pack();
    frame.setVisible(true);
  }
}