The Net: Ultimate Internet Guide/WWLCD1.ISO/pc/java/in4wjcxu/src/como/sys/userpanel.java

Java Source | 1996-08-14 | 4.2 KB | 162 lines

/*
* @(#)UserPanel.java    1.0 95/11/09 Ulrich Gall & Jan Kautz
*
* Copyright (c) 1996 Ulrich Gall & Jan Kautz
* [e-mail]
* Hofmannstr. 48, D-91052 Erlangen, Germany, Fax: [phone]
*
* Permission to use, copy, and distribute this software
* and its documentation for NON-COMMERCIAL purposes and without
* fee is hereby granted provided that this copyright notice
* appears in all copies. Please contact us for  further copyright
* and licensing information.
*
* WE MAKE NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
* THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE, OR NON-INFRINGEMENT. WE SHALL NOT BE LIABLE FOR
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
*/
package como.sys;


import como.awt.*;
import como.util.*;

import java.util.*;
import java.awt.*;

/**
 * This class displays and edits information about users.
 * All fields are displayed. Standard fields are displayed neatly.
 */

public class UserPanel extends Panel
{
    boolean edit;
    User user;
    Button updatebutton;
    Hashtable comps;
    String okbuttontext;
    Image map;
    Panel addcomppanel;

    /**
    * Constructs a new Panel from the specified user
    */
    public UserPanel(User u,String okbutton)
    {
        super();
        edit = (okbutton.length() != 0);
        okbuttontext = okbutton;
        setUser(u);
    }
    public UserPanel(User u,String okbutton,Image mapimg)
    {
        super();
        edit = (okbutton.length() != 0);
        okbuttontext = okbutton;
        map = mapimg;
        setUser(u);
    }
    public UserPanel() {
        super();
        edit = false;
        setUser(null);
        }
    public void setUser(User u)
    {
        user = u;
        if (user != null) {
        comps = new Hashtable();
        removeAll();
        setLayout(new BorderLayout());
        addcomppanel = new Panel();
        addcomppanel.setLayout(new VertLayout(VertLayout.STRETCH));
        add("North",addcomppanel);

        addComp("ID",User.ID,false);
        if (!user.containsKey(User.NAME)) user.put(User.NAME,"Unknown");
        addComp("Name",User.NAME,edit);
        addComp("Nickname",User.NICK,false);
        addComp("Host address",User.ADDRESS,false);
        addComp("Color",User.COLOR,edit);
        if (!user.containsKey(User.COMMENT)) user.put(User.COMMENT,"Unknown");
        addComp("Comment",User.COMMENT,edit);

        if ((map != null) && user.containsKey(User.LOCATION)) {
            ImageClick ic = new ImageClick(map);
            if (user.get(User.LOCATION) instanceof Point) ic.setPos((Point)user.get(User.LOCATION));
            ic.setEditable(edit);
            add("Center",ic);
            comps.put(ic,User.LOCATION);
        }

        if (edit) {
            updatebutton = new Button(okbuttontext);
            add("South",updatebutton);
        }
        }
    }
    public void setEditable(boolean b) {
    edit = b;
        }
    public void addComp(String desc,Object key,boolean e) {
        if (user.containsKey(key)) {
            Object o = user.get(key);
            if (o instanceof String) {
                Panel p = new Panel();
                p.setLayout(new BorderLayout());
                p.add("West",new Label(desc+": "));
                TextField tf = new TextField((String)o);
                tf.setEditable(e);
                comps.put(tf,key);
                p.add("Center",tf);
                addcomppanel.add(p);
            }
            else if (o instanceof Color) {
                if (e) {
                    addcomppanel.add(new Label(desc));
                    ColorSelector cs = new ColorSelector((Color)o);
                    comps.put(cs,key);
                    addcomppanel.add(cs);
                }
                else {
                    Panel p = new Panel();
                    p.setLayout(new BorderLayout());
                    p.add("West",new Label(desc+": "));
                    Canvas c = new Canvas();
                    c.setBackground((Color)o);
                    p.add("Center",c);
                    addcomppanel.add(p);
                }
            }
        }
    }
    public User getUser() {
        if (edit) {
        Enumeration e = comps.keys(); // enumerates the components...
        while(e.hasMoreElements()) {
            Component c = (Component)e.nextElement();
            Object key = comps.get(c);
            if (c instanceof TextField) user.put(key,((TextField)c).getText());
            if (c instanceof ColorSelector) user.put(key,((ColorSelector)c).getColor());
            }
            }
        return user;
        }
    public boolean action(Event evt, Object arg) {
        if (edit) {
            if (evt.target == updatebutton) {
                getParent().postEvent(new Event(this,Event.ACTION_EVENT,getUser()));
                return true;
            }
            Object key = comps.get(evt.target);
            user.put(key,evt.arg);
        }
        return true;
    }

}