JAVA－SWT如何在Jtable单元格中加入复选框Jcheckbox,Jbutton,JcomboBox
java swt代码demo下载地址：http://www.zuidaima.com/share/kswt-p1-s1.htm
项目用到一个需求就是在Jtable单元格中加复选框Jcheckbox或者Jbutton，在网上终于找到了解决的办法。可惜，加两个Jbutton的问题还没有解决。
先记下如何在如何在Jtable单元格中加复选框Jcheckbox和JComboBox。
第一种:自定义自己的TableModel类。
这种方法核心是需要实现getColumnClass()方法，只要覆盖tablemodel的getColumnClass返回一个boolean的class， jtable会自动画一个Jcheckbox给你。说直白一些就是你返回一个boolean类型的值，它会自动在Jtable中画一个checkBox。true选示被选中，false表示未选中。
package com;
import javax.swing.JFrame;
import javax.swing.JComboBox;
import javax.swing.JCheckBox;
import javax.swing.JTextField;
import java.awt.Container;
import javax.swing.table.AbstractTableModel;
import javax.swing.JTable;
import javax.swing.JScrollPane;
import javax.swing.DefaultCellEditor;
import javax.swing.table.TableColumn;
@SuppressWarnings("serial")
public class AbstractTableModelTest extends JFrame {
private JTable table = null;
private JScrollPane jsp = null;
private JComboBox cob = null;
private JCheckBox ckb = null;
private JTextField txt = null;
public AbstractTableModelTest() {
this.setTitle("JTable的ListSelectionModeld的监听事件");
this.setSize(400, 360);
// 获取窗体的内容面板
Container container = this.getContentPane();
MyAbstractTableModel1 myModel = new MyAbstractTableModel1();
// JTable
table = new JTable(myModel);
// 获得表格的表格列类
TableColumn tc1 = table.getColumnModel().getColumn(2);
TableColumn tc2 = table.getColumnModel().getColumn(4);
TableColumn tc3 = table.getColumnModel().getColumn(5);
// 实例化JCheckBox
ckb = new JCheckBox();
tc1.setCellEditor(new DefaultCellEditor(ckb));
// 实例化JComboBox
cob = new JComboBox();
cob.addItem("HN");
cob.addItem("HB");
cob.addItem("BJ");
tc2.setCellEditor(new DefaultCellEditor(cob));
// 实例化JTextField
txt = new JTextField("");
txt.setSize(100, 26);
tc3.setCellEditor(new DefaultCellEditor(txt));
// JScrollPane
jsp = new JScrollPane(table, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
container.add(jsp);
// 获得自定义的抽象表格模型
this.setLocationRelativeTo(null);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setVisible(true);
}
public static void main(String[] args) {
new AbstractTableModelTest();
}
}
@SuppressWarnings("serial")
class MyAbstractTableModel1 extends AbstractTableModel {
// 定义表头数据
String[] head = { "ID", "NAME", "SEX(boy)", "AGE", "ADDRESS", "DEMO" };
// 创建类型数组
// Class[]
// typeArray={Object.class,Object.class,Boolean.class,int.class,Object.class,Object.class};
// 定义表的内容数据
Object[] data1 = { "200913420125", "SUMMER", new Boolean(true),
new Integer(20), "1", "NULL" };
Object[] data2 = { "200913420124", "WULEI", new Boolean(true),
new Integer(20), "2", "NULL" };
Object[] data3 = { "200913420125", "BOOK", new Boolean(false),
new Integer(20), "3", "NULL" };
Object[] data4 = { "200913420125", "CUP", new Boolean(true),
new Integer(20), "4", "NULL" };
Object[] data5 = { "200913420125", "MOUSE", new Boolean(true),
new Integer(20), "5", "NULL" };
// 定义表格每一列的数据类型
Class[] typeArray = { Object.class, Object.class, Boolean.class,
Integer.class, JComboBox.class, Object.class };
Object[][] data = { data1, data2, data3, data4, data5 };
// 获得表格的列数
public int getColumnCount() {
return head.length;
}
// 获得表格的行数
public int getRowCount() {
return data.length;
}
// 获得表格的列名称
@Override
public String getColumnName(int column) {
return head[column];
}
// 获得表格的单元格的数据
public Object getValueAt(int rowIndex, int columnIndex) {
return data[rowIndex][columnIndex];
}
// 使表格具有可编辑性
@Override
public boolean isCellEditable(int rowIndex, int columnIndex) {
return true;
}
// 替换单元格的值
@Override
public void setValueAt(Object aValue, int rowIndex, int columnIndex) {
data[rowIndex][columnIndex] = aValue;
fireTableCellUpdated(rowIndex, columnIndex);
}
// 实现了如果是boolean自动转成JCheckbox
/*
* 需要自己的celleditor这么麻烦吧。jtable自动支持Jcheckbox，
* 只要覆盖tablemodel的getColumnClass返回一个boolean的class， jtable会自动画一个Jcheckbox给你，
* 你的value是true还是false直接读table里那个cell的值就可以
*/
public Class getColumnClass(int columnIndex) {
return typeArray[columnIndex];// 返回每一列的数据类型
}
}
第二种方法：自定义表格渲染和表格编辑，使其拥有相应的形状和事件。
1，自定义表格编辑
主要是实现getTableCellEditorComponent()方法，强制返回JcheckBox对象
package com;
import java.awt.Component;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import javax.swing.DefaultCellEditor;
import javax.swing.JCheckBox;
import javax.swing.JTable;
@SuppressWarnings("serial")
class CheckBoxEditor extends DefaultCellEditor implements ItemListener {
private JCheckBox button;
public CheckBoxEditor(JCheckBox checkBox) {
super(checkBox);
}
public Component getTableCellEditorComponent(JTable table, Object value,
boolean isSelected, int row, int column) {
if (value == null)
return null;
button = (JCheckBox) value;
button.addItemListener(this);
return (Component) value;
}
public Object getCellEditorValue() {
button.removeItemListener(this);
return button;
}
public void itemStateChanged(ItemEvent e) {
super.fireEditingStopped();
}
}
2，自定义表格渲染
主要是实现getTableCellRendererComponent()方法，如果不自义表格将不会看到JcheckBox效果。
package com;
import java.awt.Component;
import javax.swing.JTable;
import javax.swing.table.TableCellRenderer;
class CheckBoxRenderer implements TableCellRenderer {
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column) {
if (value == null)
return null;
return (Component) value;
}
}
3，实现代码如下：
package com;
import java.awt.Dimension;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.event.TableModelEvent;
import javax.swing.table.DefaultTableModel;
public class Tables implements MouseListener {
JTable table = new JTable();
public Tables() {
JFrame frame = new JFrame("sjh");
frame.setLayout(null);
table = this.gettable();
table.addMouseListener(this);
JScrollPane src = new JScrollPane(table);
src.setBounds(0, 0, 400, 200);
frame.setSize(new Dimension(400, 200));
frame.add(src);
frame.setVisible(true);
}
public JTable gettable() {
DefaultTableModel dm = new DefaultTableModel();
dm.setDataVector(new Object[][] {
{ new JCheckBox("111"), new JCheckBox("111"),
new JCheckBox("111"), new JCheckBox("111"),
new JCheckBox("111"), new JCheckBox("111") },
{ new JCheckBox("222"), new JCheckBox("222"),
new JCheckBox("222"), new JCheckBox("222"),
new JCheckBox("222"), new JCheckBox("222") },
{ new JCheckBox("333"), new JCheckBox("333"),
new JCheckBox("333"), new JCheckBox("333"),
new JCheckBox("333"), new JCheckBox("333") }, },
new Object[] { "选择", "结果物", "说明", "类型", "发包要求文档", "操作" });
JTable table = new JTable(dm) {
public void tableChanged(TableModelEvent e) {
super.tableChanged(e);
repaint();
}
};
table.getColumn("选择").setCellEditor(
new CheckBoxEditor(new JCheckBox()));
table.getColumn("结果物").setCellEditor(
new CheckBoxEditor(new JCheckBox()));
table.getColumn("说明").setCellEditor(
new CheckBoxEditor(new JCheckBox()));
table.getColumn("类型").setCellEditor(
new CheckBoxEditor(new JCheckBox()));
table.getColumn("发包要求文档").setCellEditor(
new CheckBoxEditor(new JCheckBox()));
table.getColumn("操作").setCellEditor(
new CheckBoxEditor(new JCheckBox()));
// // table.getColumn("选择").setCellRenderer(new RadioButtonRenderer());
// table.getColumn("选择").setCellRenderer(new CheckBoxRenderer());
// table.setCellEditor(new CheckButtonEditor(new JCheckBox ()));
table.getColumn("选择").setCellRenderer(new CheckBoxRenderer());
table.getColumn("结果物").setCellRenderer(new CheckBoxRenderer());
table.getColumn("说明").setCellRenderer(new CheckBoxRenderer());
table.getColumn("类型").setCellRenderer(new CheckBoxRenderer());
table.getColumn("发包要求文档").setCellRenderer(new CheckBoxRenderer());
table.getColumn("操作").setCellRenderer(new CheckBoxRenderer());
return table;
}
public static void main(String args[]) {
new Tables();
}
public void mouseClicked(MouseEvent arg0) {
}
public void mouseEntered(MouseEvent arg0) {
}
public void mouseExited(MouseEvent arg0) {
}
public void mousePressed(MouseEvent arg0) {
}
public void mouseReleased(MouseEvent arg0) {
}
}
最终的效果图如图.
它既有JcheckBox的事件，也有JcheckBox的形状。
同理加入Jbutton也是如
/*
* TableButton3.java
*
* Created on __DATE__, __TIME__
*/
package com;
import java.util.Date;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
/**
*
* @author __USER__
*/
public class TableButton3 extends javax.swing.JFrame {
public TableButton3() {
String[] columnNames = { "Date ", "String ", "Integer ", "Number ", " " };
Object[][] data = {
{ new Date(), "A ", new Integer(1), new Double(5.1), "Delete0 " },
{ new Date(), "B ", new Integer(2), new Double(6.2), "Delete1 " },
{ new Date(), "C ", new Integer(3), new Double(7.3), "Delete2 " },
{ new Date(), "D ", new Integer(4), new Double(8.4), "Delete3 " } };
DefaultTableModel model = new DefaultTableModel(data, columnNames);
JTable table = new JTable(model);
JScrollPane scrollPane = new JScrollPane(table);
getContentPane().add( scrollPane );
ButtonColumn buttonsColumn = new ButtonColumn(table, 4);
}
public static void main(String[] args) {
TableButton3 frame = new TableButton3();
frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
frame.pack();
frame.setVisible(true);
}
}
package com;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.AbstractCellEditor;
import javax.swing.JButton;
import javax.swing.JTable;
import javax.swing.UIManager;
import javax.swing.table.TableCellEditor;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumnModel;
public class ButtonColumn extends AbstractCellEditor implements
TableCellRenderer, TableCellEditor, ActionListener {
JTable table;
JButton renderButton;
JButton editButton;
String text;
public ButtonColumn(JTable table, int column) {
super();
this.table = table;
renderButton = new JButton();
editButton = new JButton();
editButton.setFocusPainted(false);
editButton.addActionListener(this);
TableColumnModel columnModel = table.getColumnModel();
columnModel.getColumn(column).setCellRenderer(this);
columnModel.getColumn(column).setCellEditor(this);
}
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column) {
if (hasFocus) {
renderButton.setForeground(table.getForeground());
renderButton.setBackground(UIManager.getColor("Button.background"));
} else if (isSelected) {
renderButton.setForeground(table.getSelectionForeground());
renderButton.setBackground(table.getSelectionBackground());
} else {
renderButton.setForeground(table.getForeground());
renderButton.setBackground(UIManager.getColor("Button.background"));
}
renderButton.setText((value == null) ? " " : value.toString());
return renderButton;
}
public Component getTableCellEditorComponent(JTable table, Object value,
boolean isSelected, int row, int column) {
text = (value == null) ? " " : value.toString();
editButton.setText(text);
return editButton;
}
public Object getCellEditorValue() {
return text;
}
public void actionPerformed(ActionEvent e) {
fireEditingStopped();
System.out.println(e.getActionCommand() + " : "
+ table.getSelectedRow());
}
}
OVER~~~