SFLabel：可配置星号标签-优快云博客

本文链接：https://blog.youkuaiyun.com/gxblluojialin/article/details/84530761

package com.easyfeeling.ui.controls;

import javax.swing.JLabel;

/**
* 可配置 * 号标签
* @author luojialin
* @since 2014-2-24
*/
public class SFLabel extends JLabel {

public static String LEFT = "left";
public static String RIGHT = "right";

private String position = "right";
private boolean redStart = false;
private String visibleText;
private String text;

/**
* 无参构造函数
*/
public SFLabel() {
  this(null,false);
}

/**
* 构造函数
* @param text 标签名称
*/
public SFLabel(String text) {
  this(text,false);
}

/**
* 构造函数
* @param text 标签名称
* @param flag 是否显示　*　号
*/
public SFLabel(String text,boolean flag) {
  this(text,flag,null);
}

/**
* 构造函数
* @param title 标签
* @param flage 是否显示星号
* @param position 星号显示的位置　左、右
*/
public SFLabel(String title,boolean flag,String pos) {
  super();
  text = title;
  redStart = flag;
  position = pos;
  if(redStart){
   visibleText = setLabelText(title,position);
  }else{
   visibleText = title;
  }
  setText(visibleText);
}

public boolean isRedStart() {
return redStart;
}

/**
* 设置标签显示红星
* @param redStart
*/
public void setRedStart(boolean redStart) {
  this.redStart = redStart;
  if(redStart)
   visibleText = setLabelText(text,position);
  setText(visibleText);
  this.repaint();
}

public String getPosition() {
return position;
}

/**
* 设置　*　号在标签上的位置
* @param defaultPosition
*/
public void setPosition(String defaultPosition) {
  this.position = defaultPosition;
  if(redStart){
   visibleText = setLabelText(text,position);
  }
  setText(visibleText);
  this.repaint();

}

private String setLabelText(String text ,String direction){
 if("left".equals(position)){
 visibleText = "<html>*"+text+"</html>";
 }else if("right".equals(position)){
 visibleText = "<html>"+text+"*</html>";
 }else{
 visibleText = "<html>"+text+"*</html>";
 }

 return visibleText;
}

带星号 JLable