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* 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.
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import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Rectangle;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.IOException;
import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.DefaultListModel;
import javax.swing.DropMode;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.SwingUtilities;
import javax.swing.TransferHandler;
import javax.swing.UIManager;
import javax.swing.table.DefaultTableModel;
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();
}
});
}
}
| 14.112.Drag Drop |
| 14.112.1. | Basic drag and drop |
| 14.112.2. | Dragging Text from a JLabel |  |
| 14.112.3. | Drag-and-Drop Support for Images |  |
| 14.112.4. | Drag and drop icons: use an icon property. |
| 14.112.5. | implements DragGestureListener, Transferable |
| 14.112.6. | Dragging and dropping text between a text area, a list, and a table |  |
| 14.112.7. | Drag and drop between JTextArea and JTextField |
| 14.112.8. | Transfer both Text and Color between JTextField and JTextArea |
| 14.112.9. | Drag and drop between JList and JTextField |
| 14.112.10. | DropMode.ON |
| 14.112.11. | DropMode.INSERT |
| 14.112.12. | DropMode.ON_OR_INSERT |
| 14.112.13. | Set tree DropMode to DropMode.USE_SELECTION |
| 14.112.14. | Set tree drag mode to DropMode.ON |
| 14.112.15. | Set tree drag mode to DropMode.INSERT |
| 14.112.16. | Set tree drag mode to DropMode.ON_OR_INSERT |
| 14.112.17. | Choose Drop Action |
| 14.112.18. | Various drop actions |
| 14.112.19. | JTable drag and drop |
| 14.112.20. | Create a drag source a drop target and a transferable object. |
| 14.112.21. | Making a Component Draggable |
| 14.112.22. | Detect a drag initiating gesture in your application |
| 14.112.23. | Illustrates cut, copy, paste and drag and drop using three instances of JList |
| 14.112.24. | Location sensitive drag and drop |
| 14.112.25. | Demonstration of the top-level TransferHandler support on JFrame |
| 14.112.26. | Drag-and-Drop customization: drag the foreground color from the first label and drop it as the background color into the second one |
| 14.112.27. | Demonstrates how to add copy and drag support to a Swing component with TransferHandler |
| 14.112.28. | ScribblePane allows individual PolyLine lines to be selected, cut, copied, pasted, dragged, and dropped |
| 14.112.29. | Built-in drag and drop support: utilize a TransferHandler class |
| 14.112.30. | DND Drag and drop List |