| /* |
| * Copyright (c) 2007, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package com.sun.swingset3.demos.list; |
| |
| import java.awt.*; |
| import java.awt.event.ActionEvent; |
| import java.awt.event.FocusAdapter; |
| import java.awt.event.FocusEvent; |
| import java.awt.event.FocusListener; |
| import java.util.Vector; |
| import javax.swing.*; |
| |
| import com.sun.swingset3.DemoProperties; |
| import com.sun.swingset3.demos.ResourceManager; |
| |
| /** |
| * 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 1.17 11/17/05 |
| * @author Jeff Dinkins |
| */ |
| @DemoProperties( |
| value = "JList Demo", |
| category = "Data", |
| description = "Demonstrates JList, a component which supports display/editing of a data list", |
| sourceFiles = { |
| "com/sun/swingset3/demos/list/ListDemo.java", |
| "com/sun/swingset3/demos/list/Permuter.java", |
| "com/sun/swingset3/demos/ResourceManager.java", |
| "com/sun/swingset3/demos/list/resources/ListDemo.properties", |
| "com/sun/swingset3/demos/list/resources/images/blue.gif", |
| "com/sun/swingset3/demos/list/resources/images/cyan.gif", |
| "com/sun/swingset3/demos/list/resources/images/gray.gif", |
| "com/sun/swingset3/demos/list/resources/images/green.gif", |
| "com/sun/swingset3/demos/list/resources/images/ListDemo.gif", |
| "com/sun/swingset3/demos/list/resources/images/magenta.gif", |
| "com/sun/swingset3/demos/list/resources/images/red.gif", |
| "com/sun/swingset3/demos/list/resources/images/yellow.gif" |
| } |
| ) |
| public final class ListDemo extends JPanel { |
| |
| private static final Dimension HGAP10 = new Dimension(10, 1); |
| private static final Dimension VGAP10 = new Dimension(1, 10); |
| private static final Dimension HGAP15 = new Dimension(15, 1); |
| private static final Dimension HGAP30 = new Dimension(30, 1); |
| |
| private final ResourceManager resourceManager = new ResourceManager(this.getClass()); |
| public static final String DEMO_TITLE = ListDemo.class.getAnnotation(DemoProperties.class).value(); |
| |
| private final JList<String> list; |
| |
| private JPanel prefixList; |
| private JPanel suffixList; |
| |
| private Action prefixAction; |
| private Action suffixAction; |
| |
| private final GeneratedListModel listModel; |
| |
| /** |
| * main method allows us to run as a standalone demo. |
| * |
| * @param args |
| */ |
| public static void main(String[] args) { |
| JFrame frame = new JFrame(DEMO_TITLE); |
| |
| frame.getContentPane().add(new ListDemo()); |
| frame.setPreferredSize(new Dimension(800, 600)); |
| frame.pack(); |
| frame.setLocationRelativeTo(null); |
| frame.setVisible(true); |
| } |
| |
| /** |
| * ListDemo Constructor |
| */ |
| public ListDemo() { |
| setLayout(new BorderLayout()); |
| |
| loadImages(); |
| |
| JLabel description = new JLabel(resourceManager.getString("ListDemo.description")); |
| add(description, BorderLayout.NORTH); |
| |
| JPanel centerPanel = new JPanel(); |
| centerPanel.setLayout(new BoxLayout(centerPanel, BoxLayout.X_AXIS)); |
| centerPanel.add(Box.createRigidArea(HGAP10)); |
| 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(); |
| 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) |
| 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); |
| } |
| |
| private JPanel createControlPanel() { |
| JPanel controlPanel = new JPanel() { |
| private final Insets insets = new Insets(0, 4, 10, 10); |
| |
| @Override |
| 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(resourceManager.getString("ListDemo.prefixes"))); |
| |
| JPanel suffixPanel = new JPanel(); |
| suffixPanel.setLayout(new BoxLayout(suffixPanel, BoxLayout.Y_AXIS)); |
| suffixPanel.add(new JLabel(resourceManager.getString("ListDemo.suffixes"))); |
| |
| prefixList = new JPanel() { |
| private final Insets insets = new Insets(0, 4, 0, 0); |
| |
| @Override |
| 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() { |
| private final Insets insets = new Insets(0, 4, 0, 0); |
| |
| @Override |
| 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; |
| } |
| |
| private final FocusListener listFocusListener = new FocusAdapter() { |
| @Override |
| public void focusGained(FocusEvent e) { |
| JComponent c = (JComponent) e.getComponent(); |
| c.scrollRectToVisible(new Rectangle(0, 0, c.getWidth(), c.getHeight())); |
| } |
| }; |
| |
| private void addPrefix(String prefix, boolean selected) { |
| if (prefixAction == null) { |
| prefixAction = new UpdatePrefixListAction(listModel); |
| } |
| final JCheckBox cb = (JCheckBox) prefixList.add(new JCheckBox(prefix)); |
| cb.setSelected(selected); |
| cb.addActionListener(prefixAction); |
| if (selected) { |
| listModel.addPrefix(prefix); |
| } |
| cb.addFocusListener(listFocusListener); |
| } |
| |
| private void addSuffix(String suffix, boolean selected) { |
| if (suffixAction == null) { |
| suffixAction = new UpdateSuffixListAction(listModel); |
| } |
| final JCheckBox cb = (JCheckBox) suffixList.add(new JCheckBox(suffix)); |
| cb.setSelected(selected); |
| cb.addActionListener(suffixAction); |
| if (selected) { |
| listModel.addSuffix(suffix); |
| } |
| cb.addFocusListener(listFocusListener); |
| } |
| |
| private static class UpdatePrefixListAction extends AbstractAction { |
| |
| private final GeneratedListModel listModel; |
| |
| protected UpdatePrefixListAction(GeneratedListModel listModel) { |
| this.listModel = listModel; |
| } |
| |
| @Override |
| public void actionPerformed(ActionEvent e) { |
| JCheckBox cb = (JCheckBox) e.getSource(); |
| if (cb.isSelected()) { |
| listModel.addPrefix(cb.getText()); |
| } else { |
| listModel.removePrefix(cb.getText()); |
| } |
| } |
| } |
| |
| private static class UpdateSuffixListAction extends AbstractAction { |
| |
| private final GeneratedListModel listModel; |
| |
| protected UpdateSuffixListAction(GeneratedListModel listModel) { |
| this.listModel = listModel; |
| } |
| |
| @Override |
| public void actionPerformed(ActionEvent e) { |
| JCheckBox cb = (JCheckBox) e.getSource(); |
| if (cb.isSelected()) { |
| listModel.addSuffix(cb.getText()); |
| } else { |
| listModel.removeSuffix(cb.getText()); |
| } |
| } |
| } |
| |
| private static class GeneratedListModel extends AbstractListModel<String> { |
| |
| private Permuter permuter; |
| |
| private final Vector<String> prefix = new Vector<>(); |
| private final Vector<String> suffix = new Vector<>(); |
| |
| 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(); |
| } |
| |
| @Override |
| public int getSize() { |
| return prefix.size() * suffix.size(); |
| } |
| |
| @Override |
| public String 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 prefix.elementAt(j % ps) + suffix.elementAt((j / ps) % ss); |
| } |
| } |
| |
| private final ImageIcon[] images = new ImageIcon[7]; |
| |
| void loadImages() { |
| images[0] = resourceManager.createImageIcon("red.gif", resourceManager.getString("ListDemo.red")); |
| images[1] = resourceManager.createImageIcon("blue.gif", resourceManager.getString("ListDemo.blue")); |
| images[2] = resourceManager.createImageIcon("yellow.gif", resourceManager.getString("ListDemo.yellow")); |
| images[3] = resourceManager.createImageIcon("green.gif", resourceManager.getString("ListDemo.green")); |
| images[4] = resourceManager.createImageIcon("gray.gif", resourceManager.getString("ListDemo.gray")); |
| images[5] = resourceManager.createImageIcon("cyan.gif", resourceManager.getString("ListDemo.cyan")); |
| images[6] = resourceManager.createImageIcon("magenta.gif", resourceManager.getString("ListDemo.magenta")); |
| } |
| |
| private class CompanyLogoListCellRenderer extends DefaultListCellRenderer { |
| |
| @Override |
| 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; |
| } |
| } |
| } |
