editableheadertableexample2.java

来自「tame,扩展了好多SWing组件:JTable」· Java 代码 · 共 85 行

/* (swing1.1.1) */
package tame.examples;

import java.awt.Component;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.DefaultCellEditor;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumnModel;

import tame.table.EditableHeader;
import tame.table.EditableHeaderTableColumn;

/**
@author Nobuo Tamemasa
@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);
  }
}