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Java Source | 2002-09-06 | 11.2 KB | 379 lines |
- /*
- * Copyright (c) 2002 Sun Microsystems, Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * -Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * -Redistribution in binary form must reproduct the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the distribution.
- *
- * Neither the name of Sun Microsystems, Inc. or the names of contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * This software is provided "AS IS," without a warranty of any kind. ALL
- * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
- * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
- * OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT
- * BE LIABLE FOR ANY DAMAGES OR LIABILITIES SUFFERED BY LICENSEE AS A RESULT
- * OF OR RELATING TO USE, MODIFICATION OR DISTRIBUTION OF THE SOFTWARE OR ITS
- * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST
- * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL,
- * INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY
- * OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE SOFTWARE, EVEN
- * IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- *
- * You acknowledge that Software is not designed, licensed or intended for
- * use in the design, construction, operation or maintenance of any nuclear
- * facility.
- */
-
- /*
- * @(#)ListDemo.java 1.10 02/06/13
- */
-
-
- import javax.swing.*;
- import javax.swing.event.*;
- import javax.swing.text.*;
- import javax.swing.border.*;
- import javax.swing.colorchooser.*;
- import javax.swing.filechooser.*;
- import javax.accessibility.*;
-
- import java.awt.*;
- import java.awt.event.*;
- import java.beans.*;
- import java.util.*;
- import java.io.*;
- import java.applet.*;
- import java.net.*;
-
- /**
- * List Demo. This demo shows that it is not
- * always necessary to have an array of objects
- * as big as the size of the list stored.
- *
- * Indeed, in this example, there is no array
- * kept for the list data, rather it is generated
- * on the fly as only those elements are needed.
- *
- * @version 1.10 06/13/02
- * @author Jeff Dinkins
- */
- public class ListDemo extends DemoModule {
- JList list;
-
- JPanel prefixList;
- JPanel suffixList;
-
- Action prefixAction;
- Action suffixAction;
-
- GeneratedListModel listModel;
-
- Vector checkboxes = new Vector();
-
- /**
- * main method allows us to run as a standalone demo.
- */
- public static void main(String[] args) {
- ListDemo demo = new ListDemo(null);
- demo.mainImpl();
- }
-
- /**
- * ListDemo Constructor
- */
- public ListDemo(SwingSet2 swingset) {
- super(swingset, "ListDemo", "toolbar/JList.gif");
-
- loadImages();
-
- JLabel description = new JLabel(getString("ListDemo.description"));
- getDemoPanel().add(description, BorderLayout.NORTH);
-
- JPanel centerPanel = new JPanel();
- centerPanel.setLayout(new BoxLayout(centerPanel, BoxLayout.X_AXIS));
- centerPanel.add(Box.createRigidArea(HGAP10));
- getDemoPanel().add(centerPanel, BorderLayout.CENTER);
-
- JPanel listPanel = new JPanel();
- listPanel.setLayout(new BoxLayout(listPanel, BoxLayout.Y_AXIS));
- listPanel.add(Box.createRigidArea(VGAP10));
-
- centerPanel.add(listPanel);
- centerPanel.add(Box.createRigidArea(HGAP30));
-
- // Create the list
- list = new JList();
- list.setCellRenderer(new CompanyLogoListCellRenderer());
- listModel = new GeneratedListModel(this);
- list.setModel(listModel);
-
- // Set the preferred row count. This affects the preferredSize
- // of the JList when it's in a scrollpane.
- list.setVisibleRowCount(22);
-
- // Add list to a scrollpane
- JScrollPane scrollPane = new JScrollPane(list);
- listPanel.add(scrollPane);
- listPanel.add(Box.createRigidArea(VGAP10));
-
- // Add the control panel (holds the prefix/suffix list and prefix/suffix checkboxes)
- JPanel controlPanel = createControlPanel();
- centerPanel.add(createControlPanel());
-
-
- // create prefixes and suffixes
- addPrefix("Tera", true);
- addPrefix("Micro", false);
- addPrefix("Southern", false);
- addPrefix("Net", true);
- addPrefix("YoYo", true);
- addPrefix("Northern", false);
- addPrefix("Tele", false);
- addPrefix("Eastern", false);
- addPrefix("Neo", false);
- addPrefix("Digi", false);
- addPrefix("National", false);
- addPrefix("Compu", true);
- addPrefix("Meta", true);
- addPrefix("Info", false);
- addPrefix("Western", false);
- addPrefix("Data", false);
- addPrefix("Atlantic", false);
- addPrefix("Advanced", false);
- addPrefix("Euro", false);
- addPrefix("Pacific", false);
- addPrefix("Mobile", false);
- addPrefix("In", false);
- addPrefix("Computa", false);
- addPrefix("Digital", false);
- addPrefix("Analog", false);
-
- addSuffix("Tech", true);
- addSuffix("Soft", true);
- addSuffix("Telecom", true);
- addSuffix("Solutions", false);
- addSuffix("Works", true);
- addSuffix("Dyne", false);
- addSuffix("Services", false);
- addSuffix("Vers", false);
- addSuffix("Devices", false);
- addSuffix("Software", false);
- addSuffix("Serv", false);
- addSuffix("Systems", true);
- addSuffix("Dynamics", true);
- addSuffix("Net", false);
- addSuffix("Sys", false);
- addSuffix("Computing", false);
- addSuffix("Scape", false);
- addSuffix("Com", false);
- addSuffix("Ware", false);
- addSuffix("Widgets", false);
- addSuffix("Media", false);
- addSuffix("Computer", false);
- addSuffix("Hardware", false);
- addSuffix("Gizmos", false);
- addSuffix("Concepts", false);
- }
-
- public JPanel createControlPanel() {
- JPanel controlPanel = new JPanel() {
- Insets insets = new Insets(0, 4, 10, 10);
- public Insets getInsets() {
- return insets;
- }
- };
- controlPanel.setLayout(new BoxLayout(controlPanel, BoxLayout.X_AXIS));
-
- JPanel prefixPanel = new JPanel();
- prefixPanel.setLayout(new BoxLayout(prefixPanel, BoxLayout.Y_AXIS));
- prefixPanel.add(new JLabel(getString("ListDemo.prefixes")));
-
- JPanel suffixPanel = new JPanel();
- suffixPanel.setLayout(new BoxLayout(suffixPanel, BoxLayout.Y_AXIS));
- suffixPanel.add(new JLabel(getString("ListDemo.suffixes")));
-
- prefixList = new JPanel() {
- Insets insets = new Insets(0, 4, 0, 0);
- public Insets getInsets() {
- return insets;
- }
- };
- prefixList.setLayout(new BoxLayout(prefixList, BoxLayout.Y_AXIS));
- JScrollPane scrollPane = new JScrollPane(prefixList);
- scrollPane.getVerticalScrollBar().setUnitIncrement(10);
- prefixPanel.add(scrollPane);
- prefixPanel.add(Box.createRigidArea(HGAP10));
-
- suffixList = new JPanel() {
- Insets insets = new Insets(0, 4, 0, 0);
- public Insets getInsets() {
- return insets;
- }
- };
- suffixList.setLayout(new BoxLayout(suffixList, BoxLayout.Y_AXIS));
- scrollPane = new JScrollPane(suffixList);
- scrollPane.getVerticalScrollBar().setUnitIncrement(10);
- suffixPanel.add(scrollPane);
- suffixPanel.add(Box.createRigidArea(HGAP10));
-
- controlPanel.add(prefixPanel);
- controlPanel.add(Box.createRigidArea(HGAP15));
- controlPanel.add(suffixPanel);
- return controlPanel;
- }
-
- public void addPrefix(String prefix, boolean selected) {
- if(prefixAction == null) {
- prefixAction = new UpdatePrefixListAction(listModel);
- }
- JCheckBox cb = (JCheckBox) prefixList.add(new JCheckBox(prefix));
- checkboxes.addElement(cb);
- cb.setSelected(selected);
- cb.addActionListener(prefixAction);
- if(selected) {
- listModel.addPrefix(prefix);
- }
- }
-
- public void addSuffix(String suffix, boolean selected) {
- if(suffixAction == null) {
- suffixAction = new UpdateSuffixListAction(listModel);
- }
- JCheckBox cb = (JCheckBox) suffixList.add(new JCheckBox(suffix));
- checkboxes.addElement(cb);
- cb.setSelected(selected);
- cb.addActionListener(suffixAction);
- if(selected) {
- listModel.addSuffix(suffix);
- }
- }
-
- class UpdatePrefixListAction extends AbstractAction {
- GeneratedListModel listModel;
- protected UpdatePrefixListAction(GeneratedListModel listModel) {
- this.listModel = listModel;
- }
-
- public void actionPerformed(ActionEvent e) {
- JCheckBox cb = (JCheckBox) e.getSource();
- if(cb.isSelected()) {
- listModel.addPrefix(cb.getText());
- } else {
- listModel.removePrefix(cb.getText());
- }
- }
- }
-
- class UpdateSuffixListAction extends AbstractAction {
- GeneratedListModel listModel;
- protected UpdateSuffixListAction(GeneratedListModel listModel) {
- this.listModel = listModel;
- }
-
- public void actionPerformed(ActionEvent e) {
- JCheckBox cb = (JCheckBox) e.getSource();
- if(cb.isSelected()) {
- listModel.addSuffix(cb.getText());
- } else {
- listModel.removeSuffix(cb.getText());
- }
- }
- }
-
-
- class GeneratedListModel extends AbstractListModel {
- ListDemo demo;
- Permuter permuter;
-
- public Vector prefix = new Vector();
- public Vector suffix = new Vector();
-
- public GeneratedListModel (ListDemo demo) {
- this.demo = demo;
- }
-
- private void update() {
- permuter = new Permuter(getSize());
- fireContentsChanged(this, 0, getSize());
- }
-
- public void addPrefix(String s) {
- if(!prefix.contains(s)) {
- prefix.addElement(s);
- update();
- }
- }
-
- public void removePrefix(String s) {
- prefix.removeElement(s);
- update();
- }
-
- public void addSuffix(String s) {
- if(!suffix.contains(s)) {
- suffix.addElement(s);
- update();
- }
- }
-
- public void removeSuffix(String s) {
- suffix.removeElement(s);
- update();
- }
-
- public int getSize() {
- return prefix.size() * suffix.size();
- }
-
- public Object getElementAt(int index) {
- if(permuter == null) {
- update();
- }
- // morph the index to another int -- this has the benefit of
- // causing the list to look random.
- int j = permuter.map(index);
- int ps = prefix.size();
- int ss = suffix.size();
- return (String) prefix.elementAt(j%ps) + (String) suffix.elementAt((j/ps)%ss);
- }
- }
-
- ImageIcon images[] = new ImageIcon[7];
- void loadImages() {
- images[0] = createImageIcon("list/red.gif", getString("ListDemo.red"));
- images[1] = createImageIcon("list/blue.gif", getString("ListDemo.blue"));
- images[2] = createImageIcon("list/yellow.gif", getString("ListDemo.yellow"));
- images[3] = createImageIcon("list/green.gif", getString("ListDemo.green"));
- images[4] = createImageIcon("list/gray.gif", getString("ListDemo.gray"));
- images[5] = createImageIcon("list/cyan.gif", getString("ListDemo.cyan"));
- images[6] = createImageIcon("list/magenta.gif", getString("ListDemo.magenta"));
- }
-
- class CompanyLogoListCellRenderer extends DefaultListCellRenderer {
- public Component getListCellRendererComponent(
- JList list,
- Object value,
- int index,
- boolean isSelected,
- boolean cellHasFocus)
- {
- Component retValue = super.getListCellRendererComponent(
- list, value, index, isSelected, cellHasFocus
- );
- setIcon(images[index%7]);
- return retValue;
- }
- }
-
-
- }
-