import java.awt.*;
import java.util.*;
import ThirdParty.BarChart.*;


public class G_Detector extends Panel implements Runnable{

  Thread analyzeThread;
  DataChart chart = null;
  Histogram hist = null;

  int ySensorTop,ySensorBot,shootWidth;
  boolean passedTop,passedBot;

  int tClock=0;
  int topTime=0;
  int botTime=0;
  double TimeResolution = 10.0;

  Random ran = new Random();

  //----------------------------------------------------------------
  public G_Detector(int detHeight,int detWidth){
    // Add sub-panels with readouts, histograms and controls

    setBackground(Color.cyan);

    int _width= 175;
    int _height = 200;

    Panel p1 = new Panel();
    p1.setLayout(new BorderLayout());
    hist = new Histogram(40,120.0,320.0,_width,_height-50);
    p1.add("North",new Label("Drop Delta-T times"));
    p1.add("Center",hist.chart._barChart);
    p1.add("South",new Label("Bin Range: 120-320ms",Label.CENTER));

    add(p1);

    ySensorTop = (int)(0.40 * detHeight);
    ySensorBot = (int)(0.90 * detHeight);
    shootWidth = detWidth;

  }
  //----------------------------------------------------------------
  public void init(){
    passedTop = false;
    passedBot = false;
    hist.reset();
    repaint();
  }
  //----------------------------------------------------------------
  public void start() {
    analyzeThread = new Thread(this);
    analyzeThread.start();
  }
  //----------------------------------------------------------------
  public void stop() {
    analyzeThread = null;
  }
  //----------------------------------------------------------------
  //
  public void eventStart(){
    passedTop = false;
    passedBot = false;
    tClock = 0;
  }
  //----------------------------------------------------------------
  //
  public void eventDone(){
    repaint();
  }
  //----------------------------------------------------------------
  //
  public void sensor(double y, int t){
    tClock += t;
    if(!passedTop){
      if( y >= ySensorTop){
        topTime = tClock;
        passedTop=true;
      }
      return;
    }
    if(!passedBot){
      if( y >= ySensorBot){
        botTime = tClock;
        passedBot=true;

        // Data is ready so start detector thread
        start();
      }
      return;
    }
  }
  //----------------------------------------------------------------
  //
  public void analyze(){
    double dt = botTime - topTime;
    dt += (int)(TimeResolution * ran.nextGaussian());

    recordData(dt);

    stop();
  }
  //----------------------------------------------------------------
  public void run() {
    // Set at lower priority so that the animation will
    // be at top priority.
    analyzeThread.setPriority(Thread.NORM_PRIORITY - 1);

    // Do analysis when animation no busy.
    while (analyzeThread != null) {
      analyze();
    }
  }
  //----------------------------------------------------------------
  // Display the message, data, data event and histogram displays
  public void paint(Graphics g){
    hist.graphIt();
  }
  //----------------------------------------------------------------
  // Draw the sensors on the drop shoot
  public void draw(Graphics g){
    Color c = g.getColor();
    g.setColor(Color.green);
    g.drawLine(0,ySensorTop,shootWidth,ySensorTop);
    g.drawLine(0,ySensorBot,shootWidth,ySensorBot);
    g.setColor(c);
  }
  //----------------------------------------------------------------
  public void recordData(double dataPt){
    hist.setData(dataPt);
  }
}