jlable从上往下滚动效果

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jlable从上往下滚动效果

2012年05月22日 ⁄ java ⁄ 共 3774字 ⁄ 暂无评论

jlable实现从上往下滚动。有需要的朋友拿去吧代码写的很烂，希望不要拍砖

package UI;

import java.awt.Color;
import java.awt.Cursor;
import java.awt.Graphics;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.IOException;
import java.util.Vector;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;

/**
* 带有滚动效果的Label标签，可继续拓展很多特效，例如颜色变换、速度变换等
*/
public class MoveLabel extends JLabel implements Runnable {

private static final long serialVersionUID = 1891684760189602720L;

private String text = null;

private Thread thread = null;

private   int   x   =   0;
private   int   y   =   0;
private   Vector v;
private   Vector v2;
int j=0;

private int w = 0, h = 0;

public MoveLabel(String text) {
super(text);
this.text = text;
thread = new Thread(this);
v = new Vector();
v2 = new Vector();
addMouseListener(new MouseAdapter() {
public void mouseEntered(final MouseEvent arg0)
{
 setCursor(new Cursor(Cursor.HAND_CURSOR));
 setForeground(new Color(0, 0, 255));
 setText("<html>"+ getText()+"</html>");
}
public void mouseExited(final MouseEvent arg0)
{
 try
 {
 setForeground(new Color(0, 0, 0));
 String str = getText();
 str=str.substring(15,str.length());
 str=str.substring(0,str.length()-18);

 setText(str);
 }
 catch(Exception e)
 {
 setText("<html>"+ getText()+"</html>");
 }

}
public void mouseClicked(final MouseEvent arg0)
{
 String str = getText();
 System.out.println(str);

 int j = 0;
 for(int i=0;i<v.size();i++)
 {
 String content = v.get(i).toString();
 if(str.contains(content))
 {
 j=i;
 break;
 }
 }

   //调用默认浏览器
      String cmmd ="rundll32 url.dll FileProtocolHandler ";
  String url = v2.get(j).toString();

  Runtime rt=Runtime.getRuntime();
  try
  {
   rt.exec(cmmd + url);
  }
  catch (IOException e)
  {
   e.printStackTrace();
  }
}
});
thread.start();
}

public String getText() {
return text;
}

/*public void setText(String text) {
super.setText(text);
this.text = text;
} */

protected   void   paintComponent(Graphics   g)   {
super.paintComponent(g);
g.setColor(this.getBackground());
g.fillRect(0,   0,   w   =   this.getWidth(),   h   =   this.getHeight());

g.setColor(this.getForeground());
g.setFont(this.getFont());
g.drawString(text,   x,   y);
}

public void run() {
while (true) {

y -= 1;

if (y == h/2) {

try {
 Thread.sleep(5000);
 } catch (InterruptedException e) {
 e.printStackTrace();
 }
}
if (y < 0) {
if(j>=v.size()) j=0;
setText(v.get(j).toString());
y = h+10;
j++;
}

this.repaint();
try   {
Thread.sleep(50);
}   catch   (InterruptedException   e)   {
e.printStackTrace();
}
}
}
public   void addText(String text,String superLink)
{
v.add(text);
v2.add(superLink);
}
public   void addText(String text)
{
v.add(text);

}
public   void addLink(String superLink)
{

v2.add(superLink);
}
public   void removeItem(int index)
{
v.remove(index);
v2.remove(index);
}
public void removeAllItems()
{
v.clear();
v2.clear();
}
}

测试类

package UI;
import java.awt.EventQueue;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
public class testt extends JFrame {

/**
* Launch the application
* @param args
*/
public static void main(String args[]) {
  EventQueue.invokeLater(new Runnable() {
   public void run() {
    try {
     testt frame = new testt();
     frame.setVisible(true);
    } catch (Exception e) {
     e.printStackTrace();
    }
   }
  });
}

/**
* Create the frame
*/
public testt() {
  super();
  getContentPane().setLayout(null);
  setBounds(100, 100, 500, 375);
  setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

  final JPanel panel = new JPanel();
  panel.setLayout(null);
  panel.setBounds(151, 100, 178, 74);
  getContentPane().add(panel);

  final MoveLabel label = new MoveLabel("2312");
  label.setBounds(59, 22, 66, 18);

  label.addText("baidu");
  label.addLink("www.baidu.com");
  label.addText("sina");
  label.addLink("sina.com");
  label.addText("sougou");
  label.addLink("sougou.com");

  panel.add(label);
  //
}

}