import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import java.util.*;
import java.lang.*;
/** 
 * ColorHandle - draw a hexagon of the chosen color at the right spot.
 *
 * This is strictly a helper class for ColorPanel
 */

import java.awt.*;

final class ColorHandle {
  final int hx[];                           /* handle hexagon, centered at 0 */
  final int hy[];
  int hcx[];
  int hcy[];

  ColorPanel b;

  /* initializer */
  ColorHandle(ColorPanel b) {
    this.b = b;
    int thick = b.thickness;
    if (b.size().width > b.size().height) {
      hx = new int[] {0, thick, thick, 0, -thick, -thick};
      hy = new int[] {thick, thick/2, -thick/2, -thick, -thick/2, thick/2};
    } else {
      hx = new int[] {thick, thick/2, -thick/2, -thick, -thick/2, thick/2};
      hy = new int[] {0, thick, thick, 0, -thick, -thick};
    }
    hcx = new int[6];
    hcy = new int[6];
  }

  void clear(Graphics g) {
    g.fillPolygon(hcx, hcy, 6);
    g.drawLine(hcx[5],hcy[5], hcx[0],hcy[0]);
    g.drawLine(hcx[0],hcy[0], hcx[1],hcy[1]);
    g.drawLine(hcx[1],hcy[1], hcx[2],hcy[2]);
    g.drawLine(hcx[2],hcy[2], hcx[3],hcy[3]);
    g.drawLine(hcx[3],hcy[3], hcx[4],hcy[4]);
    g.drawLine(hcx[4],hcy[4], hcx[5],hcy[5]);
  }

  /* draw the handle */
  void draw(Graphics g) {
    for (int i=0; i<6; ++i) {
      hcx[i]=hx[i]+b.currx;
      hcy[i]=hy[i]+b.curry;
    }
    Color c = new Color(b.cc);
    g.setColor(c);
    g.fillPolygon(hcx, hcy, 6);
    g.setColor(Color.black);
    g.drawLine(hcx[5],hcy[5], hcx[0],hcy[0]);
    g.drawLine(hcx[0],hcy[0], hcx[1],hcy[1]);
    g.drawLine(hcx[1],hcy[1], hcx[2],hcy[2]);
    g.setColor(Color.white);
    g.drawLine(hcx[2],hcy[2], hcx[3],hcy[3]);
    g.drawLine(hcx[3],hcy[3], hcx[4],hcy[4]);
    g.drawLine(hcx[4],hcy[4], hcx[5],hcy[5]);
  }
}