Swing自定义组件: JCheckTree - JAVA

一个Renderer 一个Listener 应该可以搞定.. 自定义组件..关键就在交互事件上..

4个类.分别为:CheckTreeDemo,CheckTree,Node,CheckRenderer,CheckListener

从类名可以看出来. CheckTreeDemo是JFrame类 CheckTree是组件,Node是数据模型,CheckRenderer是CheckTree得渲染,CheckListener是CheckTree的事件

package tree;

import java.awt.BorderLayout;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;

/**
*
* @author chensiyu
* @createDate 2011/8/24
*/
public class CheckTreeDemo extends JPanel {

private CheckTree checkTree;

public CheckTreeDemo() {
init();
}

private void init(){
setLayout(new BorderLayout());

Node rootNode = new Node("Root");
Node []nodes = new Node[10];
for(int i = 0;i Node node = new Node("Node-"+i);
rootNode.add(node);
}
checkTree = new CheckTree(rootNode);
add(checkTree,BorderLayout.CENTER);

}

public static void main(String[] args) {
final JFrame frame = new JFrame();
frame.setTitle("CheckTree");
frame.setLayout(new BorderLayout());
frame.setSize(200, 400);
frame.getContentPane().add(new CheckTreeDemo());
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
SwingUtilities.invokeLater(new Runnable() {

@Override
public void run() {
frame.setVisible(true);
}
});
}
}

package tree;

import javax.swing.JTree;
import javax.swing.tree.TreeNode;

/**
*
* @author chensiyu
* @createDate 2011/8/24
*/
public class CheckTree extends JTree {

private CheckRenderer checkRenderer;
private CheckListener checkListener;

public CheckTree() {
init();
}

public CheckTree(TreeNode node) {
super(node);
init();
}

private void init() {
checkRenderer = new CheckRenderer();
checkListener = new CheckListener();
setCellRenderer(checkRenderer);
addMouseListener(checkListener);
}
}

package tree;

import javax.swing.tree.DefaultMutableTreeNode;

/**
*
* @author chensiyu
* @createDate 2011/8/24
*/
public class Node extends DefaultMutableTreeNode{

private String name = "";
private boolean selected = false;

public Node(String name){
super(name);
setName(name);
}
public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public boolean isSelected() {
return selected;
}

public void setSelected(boolean selected) {
this.selected = selected;
}
}

package tree;

/**
*
* @author chensiyu
* @createDate 2011/8/24
*/
import java.awt.*;
import javax.swing.*;
import javax.swing.tree.*;

class CheckRenderer extends JPanel implements TreeCellRenderer {

protected static JCheckBox check;
protected JLabel label;
private static Rectangle checkBounds;

public CheckRenderer() {
setLayout(null);
add(check = new JCheckBox());
add(label = new JLabel(""));
check.setBackground(UIManager.getColor("Tree.textBackground"));
label.setForeground(UIManager.getColor("Tree.textForeground"));
}

@Override
public Component getTreeCellRendererComponent(JTree tree, Object value,
boolean isSelected, boolean expanded, boolean

Swing自定义组件: JCheckTree (一)