Mega Code Archive
Table selection mode
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/*
* Copyright (c) 1995 - 2008 Sun Microsystems, Inc. All rights reserved.
*
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* are met:
*
* - Redistributions of source code must retain the above copyright
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*
* - Redistributions in binary form must reproduce the above copyright
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*
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* 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
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* 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
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* 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.
*/
/*
* SimpleTableSelectionDemo.java requires no other files.
*/
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
/**
* SimpleTableSelectionDemo is just like SimpleTableDemo, except that it detects
* selections, printing information about the current selection to standard
* output.
*/
public class SimpleTableSelectionDemo extends JPanel {
private boolean DEBUG = false;
private boolean ALLOW_COLUMN_SELECTION = false;
private boolean ALLOW_ROW_SELECTION = true;
public SimpleTableSelectionDemo() {
super(new GridLayout(1, 0));
final String[] columnNames = { "First Name", "Last Name", "Sport",
"# of Years", "Vegetarian" };
final Object[][] data = {
{ "Mary", "Campione", "Snowboarding", new Integer(5),
new Boolean(false) },
{ "Alison", "Huml", "Rowing", new Integer(3), new Boolean(true) },
{ "Kathy", "Walrath", "Knitting", new Integer(2), new Boolean(false) },
{ "Sharon", "Zakhour", "Speed reading", new Integer(20),
new Boolean(true) },
{ "Philip", "Milne", "Pool", new Integer(10), new Boolean(false) } };
final JTable table = new JTable(data, columnNames);
table.setPreferredScrollableViewportSize(new Dimension(500, 70));
table.setFillsViewportHeight(true);
table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
if (ALLOW_ROW_SELECTION) { // true by default
ListSelectionModel rowSM = table.getSelectionModel();
rowSM.addListSelectionListener(new ListSelectionListener() {
public void valueChanged(ListSelectionEvent e) {
// Ignore extra messages.
if (e.getValueIsAdjusting())
return;
ListSelectionModel lsm = (ListSelectionModel) e.getSource();
if (lsm.isSelectionEmpty()) {
System.out.println("No rows are selected.");
} else {
int selectedRow = lsm.getMinSelectionIndex();
System.out.println("Row " + selectedRow + " is now selected.");
}
}
});
} else {
table.setRowSelectionAllowed(false);
}
if (ALLOW_COLUMN_SELECTION) { // false by default
if (ALLOW_ROW_SELECTION) {
// We allow both row and column selection, which
// implies that we *really* want to allow individual
// cell selection.
table.setCellSelectionEnabled(true);
}
table.setColumnSelectionAllowed(true);
ListSelectionModel colSM = table.getColumnModel().getSelectionModel();
colSM.addListSelectionListener(new ListSelectionListener() {
public void valueChanged(ListSelectionEvent e) {
// Ignore extra messages.
if (e.getValueIsAdjusting())
return;
ListSelectionModel lsm = (ListSelectionModel) e.getSource();
if (lsm.isSelectionEmpty()) {
System.out.println("No columns are selected.");
} else {
int selectedCol = lsm.getMinSelectionIndex();
System.out.println("Column " + selectedCol + " is now selected.");
}
}
});
}
if (DEBUG) {
table.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent e) {
printDebugData(table);
}
});
}
// Create the scroll pane and add the table to it.
JScrollPane scrollPane = new JScrollPane(table);
// Add the scroll pane to this panel.
add(scrollPane);
}
private void printDebugData(JTable table) {
int numRows = table.getRowCount();
int numCols = table.getColumnCount();
javax.swing.table.TableModel model = table.getModel();
System.out.println("Value of data: ");
for (int i = 0; i < numRows; i++) {
System.out.print(" row " + i + ":");
for (int j = 0; j < numCols; j++) {
System.out.print(" " + model.getValueAt(i, j));
}
System.out.println();
}
System.out.println("--------------------------");
}
/**
* 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("SimpleTableSelectionDemo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// Create and set up the content pane.
SimpleTableSelectionDemo newContentPane = new SimpleTableSelectionDemo();
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() {
createAndShowGUI();
}
});
}
}
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