import java.awt.*;
import java.awt.event.*;
import java.applet.*;

public class hsb extends Applet implements AdjustmentListener{
  Label lb_r=new Label("赤(Red)");
  Label lb_g=new Label("緑(Green)");
  Label lb_b=new Label("青(Blue)");
  Label lb_h=new Label("色相(Hue)");
  Label lb_s=new Label("彩度(Saturation)");
  Label lb_c=new Label("明度(Brightness)");
  Scrollbar scr_r,scr_g,scr_b,scr_h,scr_s,scr_c;
  Panel pn,ps;
  TextField tr = new TextField(4);
  TextField tg = new TextField(4);
  TextField tb = new TextField(4);
  TextField trx = new TextField(4);
  TextField tgx = new TextField(4);
  TextField tbx = new TextField(4);
  TextField th = new TextField(4);
  TextField ts = new TextField(4);
  TextField tc = new TextField(4);
  int r=255;
  int g=0;
  int b=0;
  float h=0;
  float s=100;
  float c=100;
  public void init(){
    scr_r = new Scrollbar(Scrollbar.HORIZONTAL,0,16,0,271); 
    scr_g = new Scrollbar(Scrollbar.HORIZONTAL,0,16,0,271); 
    scr_b = new Scrollbar(Scrollbar.HORIZONTAL,0,16,0,271); 
    scr_h = new Scrollbar(Scrollbar.HORIZONTAL,0,10,0,110); 
    scr_s = new Scrollbar(Scrollbar.HORIZONTAL,0,10,0,110); 
    scr_c = new Scrollbar(Scrollbar.HORIZONTAL,0,10,0,110);
    pn = new Panel();
    pn.setLayout(new GridLayout(3,3));
    pn.add(lb_r);
    pn.add(lb_g);
    pn.add(lb_b);
    pn.add(tr);
    pn.add(tg);
    pn.add(tb);
    pn.add(scr_r);
    pn.add(scr_g);
    pn.add(scr_b);
    ps = new Panel();
    ps.setLayout(new GridLayout(3,3));
    ps.add(lb_h);
    ps.add(lb_s);
    ps.add(lb_c);
    ps.add(th);
    ps.add(ts);
    ps.add(tc);
    ps.add(scr_h);
    ps.add(scr_s);
    ps.add(scr_c);
    setLayout(new BorderLayout());
    add("North",pn);
    add("South",ps);
    scr_r.addAdjustmentListener(this); 
    scr_g.addAdjustmentListener(this); 
    scr_b.addAdjustmentListener(this);
    scr_h.addAdjustmentListener(this); 
    scr_s.addAdjustmentListener(this); 
    scr_c.addAdjustmentListener(this);
    scr_r.setValue(r);
    scr_g.setValue(g);
    scr_b.setValue(b); 
    scr_h.setValue((int) h);
    scr_s.setValue((int) s);
    scr_c.setValue((int) c);
    repaint();
  }
  public void adjustmentValueChanged(AdjustmentEvent e){
    if((e.getSource()==scr_r)|(e.getSource()==scr_g)|(e.getSource()==scr_b)){ 
      r=scr_r.getValue();repaint();g=scr_g.getValue();b=scr_b.getValue();
      float hsb[] = Color.RGBtoHSB(r,g,b,null);
      h = (hsb[0]*100);
      s = (hsb[1]*100);
      c = (hsb[2]*100);
      scr_h.setValue((int) h);
      scr_s.setValue((int) s);
      scr_c.setValue((int) c);
    }
    if((e.getSource()==scr_h)|(e.getSource()==scr_s)|(e.getSource()==scr_c)){ 
      h=scr_h.getValue();s=scr_s.getValue();c=scr_c.getValue();
      Color co = Color.getHSBColor(h/100,s/100,c/100);
      r=co.getRed();g=co.getGreen();b=co.getBlue();
/*
      int rgb = Color.HSBtoRGB(h/100,s/100,c/100);
      r=(rgb & 0x00ff0000) >> 16;
      g=(rgb & 0x0000ff00) >> 8;
      b=rgb & 0x000000ff;
*/
      scr_r.setValue(r);
      scr_g.setValue(g);
      scr_b.setValue(b);
    }
    repaint();
  }    
  public void paint(Graphics z){
    z.setColor(new Color(r,g,b));
    Dimension d = getSize(); 
    z.fillRect(0,0,d.width,d.height); 
    tr.setText(""+r+"["+hex(r)+"]");
    tg.setText(""+g+"["+hex(g)+"]");
    tb.setText(""+b+"["+hex(b)+"]");
    th.setText(""+h/100);
    ts.setText(""+s/100);
    tc.setText(""+c/100);
    z.setColor(new Color(r,g,b));
    Font font = new Font("ＭＳ Ｐゴシック",Font.BOLD,32);
    z.setFont(font);
    z.drawString("色見本",d.width/2,d.height/2);
 
  }
  public String hex(int n) {
    String t[]={"0","1","2","3","4","5","6","7","8","9","A","B","C","D","E","F"};
    String x = "";
    for (int i=1;n>=16;i++) {
      x=t[n%16]+x;
      n=(n-n%16)/16;
    }
    x=t[n%16]+x;
    return x;
  }  
}