categorytreecellrenderer.java

基于Struts的客户资料管理系统

package net.robin.crm.ui;

import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;

import javax.swing.ImageIcon;
import javax.swing.JTree;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellRenderer;

import net.robin.crm.service.Category;
import net.robin.crm.service.Company;

public class CategoryTreeCellRenderer extends DefaultTreeCellRenderer {

	private ImageIcon rootIcon;
	private ImageIcon categoryIcon;
	private ImageIcon companyIcon;
	
//	private boolean hasFocus;
//	
	public CategoryTreeCellRenderer() {
		super();
	}

	public Component getTreeCellRendererComponent(
			JTree tree, 
			Object value, 
			boolean sel, 
			boolean expanded, 
			boolean leaf, 
			int row, 
			boolean hasFocus) {
		
		super.getTreeCellRendererComponent(tree, value, sel, expanded, leaf,
				row, hasFocus);
		
		DefaultMutableTreeNode node = (DefaultMutableTreeNode) value;
		
		Object userObject = node.getUserObject();
		
		//处理根节点!
		if (node instanceof CategoryRootTreeNode) {
			if(rootIcon!=null){
				setIcon(rootIcon);
			}
		}
		
		if (userObject instanceof Category) {
			if(categoryIcon!=null){
				setIcon(categoryIcon);
			}
		}
		
		if (userObject instanceof Company) {
			if(companyIcon!=null){
				setIcon(companyIcon);
			}
		}
		
//		this.hasFocus = hasFocus;
		
		return this;
	}

//	public void paint(Graphics g) {
//		super.paint(g);
//		
//		if(hasFocus)
//			g.drawString("选定了!", 0, 15);
//	}
//	
	public ImageIcon getCategoryIcon() {
		return categoryIcon;
	}

	public void setCategoryIcon(ImageIcon categoryIcon) {
		this.categoryIcon = categoryIcon;
	}

	public ImageIcon getCompanyIcon() {
		return companyIcon;
	}

	public void setCompanyIcon(ImageIcon companyIcon) {
		this.companyIcon = companyIcon;
	}

	public ImageIcon getRootIcon() {
		return rootIcon;
	}

	public void setRootIcon(ImageIcon rootIcon) {
		this.rootIcon = rootIcon;
	}

	
}