refreshtimer.java

用于串口通讯测试的工具软件。完全使用java语言编写。

/***********************************************************************
 * Module:  RefreshTimer.java
 * Author:  jzx
 * Purpose: Defines the Class RefreshTimer
 ***********************************************************************/

package com.zcsoft.stock;

import java.util.*;
import java.awt.event.*;
import javax.swing.event.EventListenerList;
import javax.swing.Timer;
import com.zcsoft.client.*;

/** <p>Title: 串口通信</p>
  * <p>Description: 串口通信实验</p>
  * <p>Copyright: Copyright (c) 2002</p>
  * <p>Company: Zhicheng Software&Service Co. Ltd.</p>
  *
  * @author 蒋智湘
  * @version 1.0 */
public class RefreshTimer implements ActionListener
{
	StockMonitor sm;
	/** 设备状态位置信息 */
	Timer refreshTimer;
	/** 刷新侦听接口实现列表 */
	EventListenerList lsnrs = new EventListenerList();

	/** @param sm */
	public RefreshTimer(StockMonitor sm)
	{
		this.sm = sm;
		refreshTimer = new Timer(500, this);
		refreshTimer.setRepeats(true);
		this.setEnabled(true);
	}

	/** 设定定时刷新是否有效
	  *
	  * @param b */
	public void setEnabled(boolean b)
	{
		if (b)
		{
			refreshTimer.start();
		}
		else
		{
			this.refreshTimer.stop();
		}
	}

	/** @param delay */
	public void setRefreshDelay(int delay)
	{
		refreshTimer.setDelay(delay);
	}

	public int getRefreshDelay()
	{
		return this.refreshTimer.getDelay();
	}

	/** 隔一段固定的时间获取设备信息
	  *
	  *
	  * @param e */
	public void actionPerformed(ActionEvent e)
	{
		DeviceMaker devices[] = this.sm.devices;
		if (devices == null)
		{
			return ;
		}
		int i;
		Object[] ids = new Object[devices.length];
		for (i = 0; i < devices.length; i++)
		{
			ids[i] = devices[i].getName();
		}
		ObjectFromServlet ofs = SecureAccesser.commitRequest(0, 0, ids);
		if (SecureAccesser.isSuccess(ofs, this.sm))
		{
			Device[] p = (Device[])ofs.getReturnedValue();
			for (i = 0; i < devices.length; i++)
			{
				devices[i].setDevice(p[i]);
			}
		}
		if (sm.isShowing())
		{
			sm.repaint(200);
		}
	}

}