ticker.java

来自「java 自己写的小程序！！！欢迎使用！！！！」· Java 代码 · 共 93 行

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.PrintStream;

public class Ticker
    implements Runnable
{

    ActionListener al;
    private boolean isTicking;
    Thread t;
    int delay;

    public Ticker(int i, ActionListener actionlistener)
    {
        al = actionlistener;
        delay = i;
        t = new Thread(this);
        t.start();
        isTicking = false;
    }

    public Ticker(int i)
    {
        delay = i;
        t = new Thread(this);
        t.start();
        isTicking = false;
    }

    public void addActionListener(ActionListener actionlistener)
    {
        if(al == null)
            al = actionlistener;
        else
            System.out.println("WARNING: ActionListener already added to Ticker.");
    }

    public boolean isRunning()
    {
        return isTicking;
    }

    public void start()
    {
        isTicking = true;
    }

    public void stop()
    {
        isTicking = false;
    }

    public void setDelay(int i)
    {
        delay = i;
    }

    public int getDelay()
    {
        return delay;
    }

    private void fireActionPerformed()
    {
        if(al == null || !isTicking)
        {
            return;
        } else
        {
            ActionEvent actionevent = new ActionEvent(this, 0, null);
            al.actionPerformed(actionevent);
            return;
        }
    }

    public void run()
    {
        do
        {
            fireActionPerformed();
            try
            {
                Thread.sleep(delay);
            }
            catch(InterruptedException interruptedexception)
            {
                System.out.println("WARNING: Ticker thread interrupted.");
            }
        } while(true);
    }
}