package examples.htmlkona;

import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import weblogic.html.*;

/**
 * This servlet demonstrates how to create image maps with htmlKona.
 * 
 * @author Copyright (c) 1996-98 by WebLogic, Inc. All Rights Reserved.
 * @author Copyright (c) 1999 by BEA WebXpress, Inc. All Rights Reserved.
 */
public class ImageMap extends HttpServlet {

  public synchronized void service(HttpServletRequest req, HttpServletResponse res)
       throws IOException
  {
    try {
      res.setStatus(HttpServletResponse.SC_OK);
      res.setContentType("text/html");

      ServletPage hp = new ServletPage();
      hp.getHead()
	.addElement(new TitleElement("Image Map"));
      hp.getBodyElement()
	.setAttribute(BodyElement.bgColor, HtmlColor.white);

      int[] xcoords = {353, 474, 353};
      int[] ycoords = {116, 163, 163};
      int ncoords = 3;

      hp.getBody()
	.addElement(MarkupElement.HorizontalRule)
	.addElement(new HeadingElement("Client-side image map", 2))
	.addElement(new StringElement("This demo is designed to illustrate how you might "
				      + "use a screenshot and an image map to provide "
				      + "online help. You can demonstrate the client-"
				      + "side image map by clicking on "
				      + "several areas. The areas are: the OK button, "
				      + "the Cancel "
				      + "button, the DNS button, a triangle shape that "
				      + "stretches from the upper left corner of the "
				      + "Advanced button to the lower right corner of "
				      + "the Help button to the lower left corner of "
				      + "the Help button. The last area is a circle "
				      + "with a 40-pixel radius that originates over "
				      + "the first dot in the Default Gateway box. "
				      + "Clicking on any of these areas will take you "
				      + "to a demo help-page on WebLogic's website."))
	.addElement(MarkupElement.HorizontalRule)
	.addElement(new ImageElement(defaults.imageloc() + "ipscreen.gif")
		    .setAlign(AlignType.center)
		    .setUseMap("#MyMap", true))
	.addElement(new MapElement("MyMap")
		    .addElement(new AreaElement(AreaElement.rectangle,
						"353, 33, 475, 53",
						"http://www.weblogic.com/docs/classdocs/htmlimgmap.html#ok"))
		    .addElement(new AreaElement(AreaElement.rectangle,
						"353, 60, 475, 82",
						"http://www.weblogic.com/docs/classdocs/htmlimgmap.html#cancel"))
		    .addElement(new AreaElement(new java.awt.Rectangle(353,88,475,100),
						"http://www.weblogic.com/docs/classdocs/htmlimgmap.html#dns"))
		    .addElement(new AreaElement(new java.awt.Polygon(xcoords, ycoords, ncoords),
						"http://www.weblogic.com/docs/classdocs/htmlimgmap.html#advanced"))
		    .addElement(new AreaElement(AreaElement.circle,
						"220,193, 40",
						"http://www.weblogic.com/docs/classdocs/htmlimgmap.html#circle")))
	.addElement(MarkupElement.HorizontalRule);
                    
      hp.output(res.getOutputStream());
    }
    catch (Exception e) {
      defaults.showException(e, res.getOutputStream());
    }
  }
}