package awa.imu;

import java.awt.Color;
import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.text.NumberFormat;
import java.util.Locale;

import javax.swing.*;

public class IndicatorField extends JTextField
{
    private static final double MAX_ABS = 2.0;

    private static final DecimalFormatSymbols usfs = new DecimalFormatSymbols(Locale.US);
    private static final NumberFormat msFormat = new DecimalFormat(" 0.000;-0.000", usfs);
    
    private double dvalue = 0.0;

    public IndicatorField()
    {
        //setFont(getFont().deriveFont(10f));
    }
    
    public void setDoubleValue(double val) {
        dvalue = val;
        repaint();
    }

    public void paintComponent(java.awt.Graphics g)
    {
        int xMax = getWidth();
        int yMax = getHeight();
        int w2 = xMax/2;
        
        double ra = (dvalue / MAX_ABS);
        int xd = (int) (w2 * ra);

        g.setColor(getBackground());
        g.fillRect(0,0,xMax,yMax);

        g.setColor(Color.GREEN);
        if (Math.abs(dvalue) > 0.8) g.setColor(Color.YELLOW);
        if (Math.abs(dvalue) > 1.6) g.setColor(Color.RED);
        if (dvalue > 0.0) {
            g.fillRect(w2, 0, xd, yMax);
        } else {
            g.fillRect(w2+xd, 0, -xd, yMax);
        }

        g.setColor(Color.BLACK);
        g.drawString(msFormat.format(dvalue), 3, yMax-3);
    }
}