Startware 8/startware 8.iso/html/link.java

Java Source | 1997-01-25 | 3.4 KB | 101 lines

/*



link.java



This is an applet that creates a drop down menu with links to sites that you specify in the param tags of you html file.



Created: 6/13/96



By: Darryl Stoflet



[e-mail]



http://www.calweb.com/~dstoflet



Thanks Suresh Srinivasan ([e-mail]) for the color parameters.



*/



import java.util.*;



import java.net.*;



import java.awt.*;



import java.applet.Applet;











public class link extends Applet{











    public int number;



    public Vector urls = new Vector();



    public Vector names = new Vector();



    public URL theURL = null;



    String at;



    StringTokenizer st;



    StringTokenizer str;



    String targetFrame;



    Color bgColor;



    String s;



    String rgbDelimiter = ":,.";







   public void init() {



       s = getParameter("bgColor");



    if (s != null) st = new StringTokenizer(s, rgbDelimiter);







    if (s == null)



        bgColor = Color.lightGray;



    else if (s.equalsIgnoreCase("red"))



        bgColor = Color.red;



    else if (s.equalsIgnoreCase("blue"))



        bgColor = Color.blue;



    else if (s.equalsIgnoreCase("green"))



        bgColor = Color.green;



    else if (s.equalsIgnoreCase("yellow"))



        bgColor = Color.yellow;



    else if (s.equalsIgnoreCase("white"))



        bgColor = Color.white;



    else if (s.equalsIgnoreCase("orange"))



        bgColor = Color.orange;



    else if (s.equalsIgnoreCase("cyan"))



        bgColor = Color.cyan;



    else if (s.equalsIgnoreCase("magenta"))



        bgColor = Color.magenta;



                else if (s.equalsIgnoreCase("black"))



        bgColor = Color.black;



    else if (st.countTokens() == 3) {



        Integer r = new Integer(st.nextToken());



        Integer g = new Integer(st.nextToken());



        Integer b = new Integer(st.nextToken());



        bgColor = new Color(r.intValue(), g.intValue(), b.intValue());



    } else



        bgColor = Color.lightGray;



        String input_location = getParameter("target");




         if(input_location != null) {




                targetFrame = input_location;




          }




           else{




                 targetFrame = "_parent";




           }



       String input_number = getParameter("number");



       number = Integer.parseInt(input_number);



       Choice theLinks = new Choice();



       for(int i = 0; i <= number; i++){



             at = getParameter("link" + i);



             str = new StringTokenizer(at, "\\");



             names.addElement(new String(str.nextToken()));



             urls.addElement(new String(str.nextToken()));



             theLinks.addItem((String)names.elementAt(i));



       }



       add(theLinks);



       setBackground(bgColor);



   }







   public boolean action(Event evt, Object arg){



        if(evt.target instanceof Choice){



          String site = (String)arg;



             for(int n = 0; n <= number; n++){



                if(site.equals((String)names.elementAt(n))){



                    try{theURL = new URL((String)urls.elementAt(n));}



                    catch(MalformedURLException e) {



                    System.out.println("Bad URL");}



                    getAppletContext().showDocument(theURL,targetFrame);



                }



             }



         }



    return true;



    }



}