/* * Copyright (c) 1995, 2008, Oracle and/or its affiliates. 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. * * - Redistributions in binary form must reproduce 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 Oracle or the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ package dnd; /* * DropDemo.java requires the following file: * ListTransferHandler.java */ import javax.swing.*; import java.awt.*; import java.awt.datatransfer.*; import java.awt.event.*; public class DropDemo extends JPanel implements ActionListener { private JComboBox dropCombo; private JList list; public DropDemo() { super(new GridLayout(2,1)); add(createArea()); add(createList()); } private JPanel createList() { DefaultListModel listModel = new DefaultListModel(); for (int i = 0; i < 10; i++) { listModel.addElement("List Item " + i); } list = new JList(listModel); list.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION); JScrollPane scrollPane = new JScrollPane(list); scrollPane.setPreferredSize(new Dimension(400,100)); list.setDragEnabled(true); list.setTransferHandler(new ListTransferHandler()); dropCombo = new JComboBox(new String[] {"USE_SELECTION", "ON", "INSERT", "ON_OR_INSERT"}); dropCombo.addActionListener(this); JPanel dropPanel = new JPanel(); dropPanel.add(new JLabel("List Drop Mode:")); dropPanel.add(dropCombo); JPanel panel = new JPanel(new BorderLayout()); panel.add(scrollPane, BorderLayout.CENTER); panel.add(dropPanel, BorderLayout.SOUTH); panel.setBorder(BorderFactory.createTitledBorder("List")); return panel; } private JPanel createArea() { String text = "Drag from or drop into this area.\nThe default action is MOVE;\nhold the Control key to COPY."; JTextArea area = new JTextArea(); area.setText(text); area.setDragEnabled(true); JScrollPane scrollPane = new JScrollPane(area); scrollPane.setPreferredSize(new Dimension(400,100)); JPanel panel = new JPanel(new BorderLayout()); panel.add(scrollPane, BorderLayout.CENTER); panel.setBorder(BorderFactory.createTitledBorder("Text Area")); return panel; } public void actionPerformed(ActionEvent ae) { Object val = dropCombo.getSelectedItem(); if (val == "USE_SELECTION") { list.setDropMode(DropMode.USE_SELECTION); } else if (val == "ON") { list.setDropMode(DropMode.ON); } else if (val == "INSERT") { list.setDropMode(DropMode.INSERT); } else if (val == "ON_OR_INSERT") { list.setDropMode(DropMode.ON_OR_INSERT); } } /** * Create the GUI and show it. For thread safety, * this method should be invoked from the * event-dispatching thread. */ private static void createAndShowGUI() { //Create and set up the window. JFrame frame = new JFrame("DropDemo"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //Create and set up the content pane. JComponent newContentPane = new DropDemo(); newContentPane.setOpaque(true); //content panes must be opaque frame.setContentPane(newContentPane); //Display the window. frame.pack(); frame.setVisible(true); } public static void main(String[] args) { //Schedule a job for the event-dispatching thread: //creating and showing this application's GUI. javax.swing.SwingUtilities.invokeLater(new Runnable() { public void run() { //Turn off metal's use of bold fonts UIManager.put("swing.boldMetal", Boolean.FALSE); createAndShowGUI(); } }); } }