package jp.gr.javacons.industry.seminar.tempmonitor;

import jp.gr.javacons.industry.seminar.barmeter.*;

import java.awt.*;
import java.awt.event.*;
import java.util.Vector;

public class TemperatureMonitor implements Runnable {
    protected DataCollector collector;
    protected Vector meters;
    protected Thread dataCollectionThread;

    public static final long INTERVAL = 1000L;

    public TemperatureMonitor(){

        // データコレクターの生成
        collector = new DarwinDataCollector();
        collector.open();
        
        // フレームの生成
        Frame frame = new Frame("TemperatureMonitor");
        frame.setBounds(100, 100, 300, 150);
        frame.setLayout(new GridLayout(0,4));
        frame.setBackground(Color.lightGray);
        frame.addWindowListener(new WindowAdapter(){
            public void windowClosing(WindowEvent event){
                stop();
                collector.close();
                System.exit(0);
            }
        });

        // バーメータの生成
        meters = new Vector();
        for(int i = 0 ; i < collector.getChannelSize() ; i++){
            BarMeter barmeter = new BarMeter();
            barmeter.setForeground(Color.yellow);
            barmeter.setBackground(Color.black);
            barmeter.setMinimum(0);
            barmeter.setMaximum(100);
            Panel panel = new Panel();
            panel.add(barmeter);
            frame.add(panel);
            meters.add(barmeter);
        }

        frame.setVisible(true);
    }

    public void start(){
        dataCollectionThread = new Thread(this);
        dataCollectionThread.start();
    }

    public void stop(){
        dataCollectionThread = null;
    }

    public void run(){
        Vector data;
        BarMeter barmeter;

        Thread currentThread = Thread.currentThread();
        while(currentThread == dataCollectionThread){
            // データの収集
            data = collector.getData();

            // データの表示
            for(int i = 0 ; i < collector.getChannelSize() ; i++){
                barmeter = (BarMeter)meters.elementAt(i);
                barmeter.setValue(((Double)data.elementAt(i)).doubleValue());
            }

            try{
                currentThread.sleep(INTERVAL);
            }catch(InterruptedException ex){}
        }
    }

    public static void main(String[] args){
        (new TemperatureMonitor()).start();
    }
}