editableheadertableexample2.java

一个Java表格的例子

/* (swing1.1.1) */
//package jp.gr.java_conf.tame.swing.examples;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.table.*;
import javax.swing.plaf.metal.*;
//import jp.gr.java_conf.tame.swing.table.*;


/**
 * @version 1.0 08/22/99
 */
public class EditableHeaderTableExample2 extends JFrame {

  public EditableHeaderTableExample2(){
    super( "EditableHeader Example" );
    
    JTable table = new JTable(7, 5);
    TableColumnModel columnModel = table.getColumnModel();
    table.setTableHeader(new EditableHeader(columnModel));
    
    String[] items = {"Dog","Cat"};
    JComboBox combo = new JComboBox();
    for (int i=0;i<items.length;i++) {
      combo.addItem(items[i]);
    }
    ComboRenderer renderer = new ComboRenderer(items);
    
    EditableHeaderTableColumn col;
    // column 1
    col = (EditableHeaderTableColumn)table.getColumnModel().getColumn(1);    
    col.setHeaderValue(combo.getItemAt(0));    
    col.setHeaderRenderer(renderer);   
    col.setHeaderEditor(new DefaultCellEditor(combo));
    
    // column 3
    col = (EditableHeaderTableColumn)table.getColumnModel().getColumn(3);    
    col.setHeaderValue(combo.getItemAt(0));    
    //col.setHeaderRenderer(renderer);   
    col.setHeaderEditor(new DefaultCellEditor(combo));
    
    JScrollPane pane = new JScrollPane(table);
    getContentPane().add(pane);
  }
  
  class ComboRenderer extends JComboBox 
                     implements TableCellRenderer {
                     
    ComboRenderer(String[] items) {
      for (int i=0;i<items.length;i++) {
        addItem(items[i]);
      }
    }
    
    public Component getTableCellRendererComponent(
                 JTable table, Object value,
                 boolean isSelected, boolean hasFocus, 
		 int row, int column) {
      setSelectedItem(value);
      return this;
    }
  }

  public static void main(String[] args) {
    EditableHeaderTableExample2 frame = new EditableHeaderTableExample2();
    frame.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    });
    frame.setSize( 300, 100 );
    frame.setVisible(true);
  }
}