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Diffstat (limited to 'gcc-4.7/libjava/classpath/examples/gnu/classpath/examples/swing/ListDemo.java')
-rw-r--r-- | gcc-4.7/libjava/classpath/examples/gnu/classpath/examples/swing/ListDemo.java | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/gcc-4.7/libjava/classpath/examples/gnu/classpath/examples/swing/ListDemo.java b/gcc-4.7/libjava/classpath/examples/gnu/classpath/examples/swing/ListDemo.java new file mode 100644 index 000000000..8caa1dc62 --- /dev/null +++ b/gcc-4.7/libjava/classpath/examples/gnu/classpath/examples/swing/ListDemo.java @@ -0,0 +1,231 @@ +/* ListDemo.java -- Demostrates JList + Copyright (C) 2006 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath 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 for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package gnu.classpath.examples.swing; + +import java.awt.BorderLayout; +import java.awt.Component; +import java.awt.GridLayout; +import java.awt.event.ActionEvent; +import java.awt.event.ActionListener; + +import javax.swing.DefaultListCellRenderer; +import javax.swing.DefaultListModel; +import javax.swing.JButton; +import javax.swing.JCheckBox; +import javax.swing.JComponent; +import javax.swing.JFrame; +import javax.swing.JList; +import javax.swing.JPanel; +import javax.swing.JScrollPane; +import javax.swing.JSplitPane; +import javax.swing.ListCellRenderer; +import javax.swing.SwingUtilities; + +public class ListDemo + extends JPanel + implements ActionListener +{ + + private static class LabelCellRenderer + extends DefaultListCellRenderer + { + public Component getListCellRendererComponent(JList list, + Object value, + int index, + boolean isSelected, + boolean cellHasFocus) + { + Component c = super.getListCellRendererComponent(list, value, index, + isSelected, + cellHasFocus); + return c; + } + } + + private static class CheckCellRenderer + extends JCheckBox + implements ListCellRenderer + { + public Component getListCellRendererComponent(JList list, + Object value, + int index, + boolean isSelected, + boolean cellHasFocus) + { + setSelected(isSelected); + setText(value.toString()); + + return this; + } + } + + ListDemo() + { + super(); + createContent(); + } + + private void createContent() + { + + String foo[] = new String[] { + "non alcoholic ", + "carbonated ", + "malted ", + "fresh squeezed ", + "imported ", + "high fructose ", + "enriched " + }; + + String bar[] = new String[] { + "orange juice", + "ginger beer", + "yak milk", + "corn syrup", + "herbal remedy" + }; + + final DefaultListModel mod = new DefaultListModel(); + final JList list1 = new JList(mod); + final JList list2 = new JList(mod); + + list2.setSelectionModel(list1.getSelectionModel()); + for (int i = 0; i < bar.length; ++i) + for (int j = 0; j < foo.length; ++j) + mod.addElement(foo[j] + bar[i]); + + list1.setCellRenderer(new LabelCellRenderer()); + list2.setCellRenderer(new CheckCellRenderer()); + + JButton add = new JButton("add element"); + add.addActionListener(new ActionListener() + { + int i = 0; + public void actionPerformed(ActionEvent e) + { + mod.addElement("new element " + i); + ++i; + } + }); + + JButton del = new JButton("delete selected"); + del.addActionListener(new ActionListener() + { + public void actionPerformed(ActionEvent e) + { + for (int i = 0; i < mod.getSize(); ++i) + if (list1.isSelectedIndex(i)) + mod.remove(i); + } + }); + + + JSplitPane splitter = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT); + splitter.add(new JScrollPane(list1), JSplitPane.LEFT); + splitter.add(new JScrollPane(list2), JSplitPane.RIGHT); + + setLayout(new BorderLayout()); + JPanel p2 = new JPanel(); + p2.setLayout(new GridLayout(1, 2)); + p2.add(add); + p2.add(del); + + add(p2, BorderLayout.NORTH); + add(splitter, BorderLayout.CENTER); + } + + public void actionPerformed(ActionEvent e) + { + if (e.getActionCommand().equals("CLOSE")) + { + System.exit(0); + } + } + + /** + * When the demo is run independently, the frame is displayed, so we should + * initialise the content panel (including the demo content and a close + * button). But when the demo is run as part of the Swing activity board, + * only the demo content panel is used, the frame itself is never displayed, + * so we can avoid this step. + */ + void initFrameContent() + { + JPanel closePanel = new JPanel(); + JButton closeButton = new JButton("Close"); + closeButton.setActionCommand("CLOSE"); + closeButton.addActionListener(this); + closePanel.add(closeButton); + add(closePanel, BorderLayout.SOUTH); + } + + public static void main(String[] args) + { + SwingUtilities.invokeLater + (new Runnable() + { + public void run() + { + ListDemo app = new ListDemo(); + app.initFrameContent(); + JFrame frame = new JFrame("List Demo"); + frame.getContentPane().add(app); + frame.pack(); + frame.setVisible(true); + } + }); + } + + /** + * Returns a DemoFactory that creates a ListDemo. + * + * @return a DemoFactory that creates a ListDemo + */ + public static DemoFactory createDemoFactory() + { + return new DemoFactory() + { + public JComponent createDemo() + { + return new ListDemo(); + } + }; + } +} |