/* * Copyright (c) 1995 - 2008 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. * *   - 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 Sun Microsystems nor 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;import javax.swing.*;import javax.swing.table.*;import java.awt.*;import java.awt.datatransfer.*;import java.awt.event.*;import java.io.*;public class FillViewportHeightDemo extends JFrame implements ActionListener {    private DefaultListModel model = new DefaultListModel();    private int count = 0;    private JTable table;    private JCheckBoxMenuItem fillBox;    private DefaultTableModel tableModel;    private static String getNextString(int count) {        StringBuffer buf = new StringBuffer();        for (int i = 0; i < 5; i++) {            buf.append(String.valueOf(count));            buf.append(",");        }        // remove last newline        buf.deleteCharAt(buf.length() - 1);        return buf.toString();    }    private static DefaultTableModel getDefaultTableModel() {        String[] cols = {"Foo", "Toto", "Kala", "Pippo", "Boing"};        return new DefaultTableModel(null, cols);    }    public FillViewportHeightDemo() {        super("Empty Table DnD Demo");        tableModel = getDefaultTableModel();        table = new JTable(tableModel);        table.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);        table.setDropMode(DropMode.INSERT_ROWS);        table.setTransferHandler(new TransferHandler() {            public boolean canImport(TransferSupport support) {                // for the demo, we'll only support drops (not clipboard paste)                if (!support.isDrop()) {                    return false;                }                // we only import Strings                if (!support.isDataFlavorSupported(DataFlavor.stringFlavor)) {                    return false;                }                return true;            }            public boolean importData(TransferSupport support) {                // if we can't handle the import, say so                if (!canImport(support)) {                    return false;                }                // fetch the drop location                JTable.DropLocation dl = (JTable.DropLocation)support.getDropLocation();                int row = dl.getRow();                // fetch the data and bail if this fails                String data;                try {                    data = (String)support.getTransferable().getTransferData(DataFlavor.stringFlavor);                } catch (UnsupportedFlavorException e) {                    return false;                } catch (IOException e) {                    return false;                }                String[] rowData = data.split(",");                tableModel.insertRow(row, rowData);                                Rectangle rect = table.getCellRect(row, 0, false);                if (rect != null) {                    table.scrollRectToVisible(rect);                }                // demo stuff - remove for blog                model.removeAllElements();                model.insertElementAt(getNextString(count++), 0);                // end demo stuff                return true;            }        });        JList dragFrom = new JList(model);        dragFrom.setFocusable(false);        dragFrom.setPrototypeCellValue(getNextString(100));        model.insertElementAt(getNextString(count++), 0);        dragFrom.setDragEnabled(true);        dragFrom.setBorder(BorderFactory.createLoweredBevelBorder());                dragFrom.addMouseListener(new MouseAdapter() {            public void mouseClicked(MouseEvent me) {                if (SwingUtilities.isLeftMouseButton(me) && me.getClickCount() % 2 == 0) {                    String text = (String)model.getElementAt(0);                    String[] rowData = text.split(",");                    tableModel.insertRow(table.getRowCount(), rowData);                    model.removeAllElements();                    model.insertElementAt(getNextString(count++), 0);                }            }        });        JPanel p = new JPanel();        p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS));        JPanel wrap = new JPanel();        wrap.add(new JLabel("Drag from here:"));        wrap.add(dragFrom);        p.add(Box.createHorizontalStrut(4));        p.add(Box.createGlue());        p.add(wrap);        p.add(Box.createGlue());        p.add(Box.createHorizontalStrut(4));        getContentPane().add(p, BorderLayout.NORTH);        JScrollPane sp = new JScrollPane(table);        getContentPane().add(sp, BorderLayout.CENTER);        fillBox = new JCheckBoxMenuItem("Fill Viewport Height");        fillBox.addActionListener(this);                JMenuBar mb = new JMenuBar();        JMenu options = new JMenu("Options");        mb.add(options);        setJMenuBar(mb);                JMenuItem clear = new JMenuItem("Reset");        clear.addActionListener(this);        options.add(clear);        options.add(fillBox);        getContentPane().setPreferredSize(new Dimension(260, 180));    }    public void actionPerformed(ActionEvent ae) {        if (ae.getSource() == fillBox) {            table.setFillsViewportHeight(fillBox.isSelected());        } else {            tableModel.setRowCount(0);            count = 0;            model.removeAllElements();            model.insertElementAt(getNextString(count++), 0);        }    }    private static void createAndShowGUI() {        //Create and set up the window.        FillViewportHeightDemo test = new FillViewportHeightDemo();        test.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);                //Display the window.        test.pack();        test.setVisible(true);    }    public static void main(String[] args) {        SwingUtilities.invokeLater(new Runnable() {            public void run() {                //Turn off metal's use of bold fonts	        UIManager.put("swing.boldMetal", Boolean.FALSE);                createAndShowGUI();            }        });    }}