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- /*
- * @(#)AddRemoveTest.java 1.2 95/09/19 Herb Jellinek
- *
- * Copyright (c) 1995 Sun Microsystems, Inc. All Rights Reserved.
- *
- * Permission to use, copy, modify, 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 refer to the file "copyright.html"
- * for further important copyright and licensing information.
- *
- * SUN MAKES 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. SUN SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
- */
-
- import java.awt.*;
- import java.applet.*;
-
-
- /**
- * An interactive test of Container.add() and Container.remove().
- *
- * @version 1.2, 09/19/95
- * @author Herb Jellinek
- */
-
- public class AddRemoveTest extends Applet {
- /* set atTop to true to start with floatingButtons at top; false puts
- * 'em on bottom.
- */
- boolean atTop = false;
-
- Panel topHolder;
- Panel bottomHolder;
-
- Panel floatingButtons;
-
- Button flipper;
- Button dumper;
-
- public void init() {
- floatingButtons = new Panel();
- floatingButtons.setLayout(new FlowLayout());
- floatingButtons.add(new Button("one"));
- floatingButtons.add(new Button("two"));
- floatingButtons.add(new Button("three"));
- floatingButtons.add(new Button("four"));
- floatingButtons.add(new Button("five"));
-
- setLayout(new BorderLayout());
- add("North", topHolder = new Panel());
- Panel center = new Panel();
- add("Center", center);
- center.setLayout(new GridLayout(0, 1));
- center.add(new Label("Center", Label.CENTER));
- center.add(flipper = new Button("Flip!"));
- center.add(dumper = new Button("Show!"));
- center.add(new Label("Panel", Label.CENTER));
- add("South", bottomHolder = new Panel());
-
- if (atTop) {
- topHolder.add(floatingButtons);
- } else {
- bottomHolder.add(floatingButtons);
- }
- }
-
- public void start() {
- flipper.enable();
- }
-
- public void stop() {
- flipper.disable();
- }
-
- public boolean handleEvent(Event e) {
- Object target = e.target;
-
- if (e.id == Event.WINDOW_DESTROY) {
- System.exit(0);
- return true;
- } else if (target == flipper) {
- if (atTop) {
- topHolder.remove(floatingButtons);
- bottomHolder.add(floatingButtons);
- invalidate();
- validate();
- } else {
- bottomHolder.remove(floatingButtons);
- topHolder.add(floatingButtons);
- invalidate();
- validate();
- }
- atTop = !atTop;
- return true;
- } else if (target == dumper) {
- dump(this+"");
- return true;
- }
- return false;
- }
-
- void dump(String label) {
- System.out.println("---------- "+label);
- list();
- System.out.println();
- System.out.println();
- }
-
-
- public static void main(String args[]) {
- Frame f = new Frame("AddRemoveTest");
- AddRemoveTest addRemoveTest = new AddRemoveTest();
-
- addRemoveTest.init();
- addRemoveTest.start();
-
- f.add("Center", addRemoveTest);
- f.resize(300, 300);
- f.show();
- }
- }
-
-