Popup on Jtable
Hi want to get an popup-dialog , no tooltip on a certain column i a Jtable , is this possible and if it is where can i get some examples??
Sven
Hi Sven,
if you would have looked at the online tutorial you would have found an example that brings up a JColorChooser as editing tool for a column .... the first thing, if you search for solutions, should be a look at the tutorial.
greetings Marsian
P.S.: if you wonder, where to find, it is here
http://java.sun.com/docs/books/tutorial/uiswing/components/table.html
in paragraph Specifying Other Editors
Similar Messages
-
Well guys, voil� my problem...
I've a Person class, who has some methods to get the person information, like getName(), getAge(), getAdresse(), etc... I would display the information of all the persons in the diary in a JTable... Ok, it's all right, i made a class who extends AbstractModelTable, overriding the getValueAt(int, int) with a switch:
// private static final int COLUMN_NAME = 0;
// private static final int COLUMN_NAME = 1;
switch (column) {
case COLUMN_NAME:
return cols[rowIndex].getName();
case COLUMN_AGE:
return cols[rowIndex].getAge();
default:
return;
}The code it's something like that... I'm sorry i don't show the code, i've not the source here!
It works very fine!... But now, i want to let the user choose witch columns to display...
I made a lot of tries, but i could not get the solution... The only one thing I could, was to eliminate the columns with zero value in the conf file, but the headers were not in the correct order!... And there's another problem too, when I switch the columnIndex, if it equals to COLUMN_EMAIL = 15 means that JTree is getting the value of the 15th column, but if the user had removed the 2 column for example, the 15th column is not more the email column, it's the 15+1 columns :S... is it clair? I think it's a little difficult to explain, and as you see, i don't speak english very well :P...
Summary: I would create a class extending JTable with columns configurables, i mean, let the user choose witch columns should be showed... Any idea ?... I can avoid the JTable component, so If you've another solution, it will be ok...
Greetings and thank you guys...Your requirement is very general so we can't give you an exact solution, but I can try explaining how JTable works.
The TableModel is used to store the data. The JTable is used to display the data. When a table is first created using a TableModel a TableColumnModel is created. Each TableColumn in the TableColumnModel maps directly to a column in the TableModel.
Now what happens if the user moves column 15 to the first column in the table? The data hasn't changed, only the view of the data has changed. So even though the column is in column 0 of the table, the data must still come from column 15 in the TableModel. The TableColumns of the TableColumnModel do the mapping for you so you don't need to worry about the reordering of columns.
However, if you have some code in your program that accesses the data directly, then you need to be aware of this situation. Fortunately JTable has some methods to make this mapping easy.
table.getValueAt(...) will get data from the requested column in the view of the table
table.getModel().getValueAt(...) will get data form the requested column in the TableModel.
You can also do the mapping between "view" and "model" columns using the methods:
table.convertColumnIndexToModel(...)
table.convertColumnIndexToView(...) So what does this mean with dynamic columns? Well, you would build your table normally, then you would remove the TableColumns from the TableColumnModel that the user does not want to see.
The following example is so code I wrote a while ago that will help in manipulating the TableColumnModel. Right click on the TableHeader to see the visible/hidden status of each column:
import java.awt.*;
import java.util.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
public class TableColumnManager implements MouseListener, ActionListener
private static final String HIDDEN_COLUMN = "HiddenColumn:";
// Reference to the Singleton instance of this class
private static TableColumnManager singleton;
* Use a private constructor so we can create a Singleton.
private TableColumnManager()
* Get the Singleton instance of the <code>TableColumnManager</code>.
* @return the Singlton instance of <code>TableColumnManager</code>
private static TableColumnManager getInstance()
if (singleton == null)
singleton = new TableColumnManager();
return singleton;
* Add support for the management of visible <code>TableColumns</code>
* for a given <code>JTable</code>.
* @param table the table to provide support for
public static void install(JTable table)
table.getTableHeader().addMouseListener( getInstance() );
* Remove support for the management of visible <code>TableColumns</code>
* for a given <code>JTable</code>.
* @param table the table to remove support from
public static void uninstall(JTable table)
table.getTableHeader().removeMouseListener( getInstance() );
* Hide a column from view in the table.
* @param table the table from which the column is removed
* @param modelColumn the column index from the TableModel
* of the column to be removed
public static void hideColumn(JTable table, int modelColumn)
int viewColumn = table.convertColumnIndexToView( modelColumn );
if (viewColumn != -1)
TableColumn column = table.getColumnModel().getColumn(viewColumn);
hideColumn(table, column);
* Hide a column from view in the table.
* @param table the table from which the column is removed
* @param columnName the column name of the column to be removed
public static void hideColumn(JTable table, String columnName)
try
TableColumnModel tcm = table.getColumnModel();
int index = tcm.getColumnIndex( columnName );
TableColumn column = tcm.getColumn( index );
hideColumn(table, column);
catch(IllegalArgumentException e) {}
* Hide a column from view in the table.
* @param table the table from which the column is removed
* @param column the TableColumn to be removed from the
* TableColumnModel of the specified table
public static void hideColumn(JTable table, TableColumn column)
table.getColumnModel().removeColumn( column );
// Save the column so it can be redisplayed
ArrayList list = (ArrayList)table.getClientProperty(HIDDEN_COLUMN);
if (list == null)
list = new ArrayList();
table.putClientProperty(HIDDEN_COLUMN, list);
list.add(column);
* Show a hidden column in the table.
* @param table the table to which the column is added
* @param modelColumn the column index from the <code>TableModel</code>
* of the column to be added
public static void showColumn(JTable table, int modelColumn)
ArrayList list = (ArrayList)table.getClientProperty(HIDDEN_COLUMN);
if (list == null) return;
ListIterator it = list.listIterator();
while (it.hasNext())
TableColumn column = (TableColumn)it.next();
if (column.getModelIndex() == modelColumn)
table.getColumnModel().addColumn( column );
it.remove();
break;
* Show a hidden column in the table.
* @param table the table to which the column is added
* @param columnName the column name from the <code>TableModel</code>
* of the column to be added
public static void showColumn(JTable table, String columnName)
ArrayList list = (ArrayList)table.getClientProperty(HIDDEN_COLUMN);
if (list == null) return;
ListIterator it = list.listIterator();
while (it.hasNext())
TableColumn column = (TableColumn)it.next();
if (column.getHeaderValue().equals(columnName))
table.getColumnModel().addColumn( column );
it.remove();
break;
// Implement the MouseListener
public void mousePressed(MouseEvent e)
checkForPopup( e );
public void mouseReleased(MouseEvent e)
checkForPopup( e );
public void mouseClicked(MouseEvent e) {}
public void mouseEntered(MouseEvent e) {}
public void mouseExited(MouseEvent e) {}
private void checkForPopup(MouseEvent e)
if (e.isPopupTrigger())
JTableHeader header = (JTableHeader)e.getComponent();
int column = header.columnAtPoint( e.getPoint() );
showPopup(header.getTable(), column);
* Show a hidden column in the table.
* @param table the table to which the column is added
* @param columnName the column name from the <code>TableModel</code>
* of the column to be added
public static void showPopup(JTable table, int tableColumn)
int columns = table.getModel().getColumnCount();
JCheckBoxMenuItem[] items = new JCheckBoxMenuItem[columns];
// Create menu items for hidden columns
ArrayList list = (ArrayList)table.getClientProperty(HIDDEN_COLUMN);
if (list != null)
ListIterator it = list.listIterator();
while (it.hasNext())
TableColumn column = (TableColumn)it.next();
String columnName = column.getHeaderValue().toString();
JCheckBoxMenuItem item = new JCheckBoxMenuItem( columnName );
item.setSelected( false );
item.addActionListener(getInstance());
items[column.getModelIndex()] = item;
// Create menu items for visible columns
TableColumnModel columnModel = table.getColumnModel();
int columnCount = columnModel.getColumnCount();
for (int i = 0; i < columnCount; i++)
TableColumn column = columnModel.getColumn(i);
String columnName = column.getHeaderValue().toString();
JCheckBoxMenuItem item = new JCheckBoxMenuItem( columnName );
item.setSelected( true );
item.addActionListener(getInstance());
items[column.getModelIndex()] = item;
// Create popup menu from array of menu items.
// Override the setSelected method to select the
// specified menu item. (ie. this is a bug fix)
JPopupMenu popup = new JPopupMenu()
public void setSelected(Component sel)
int index = getComponentIndex( sel );
getSelectionModel().setSelectedIndex(index);
final MenuElement me[] = new MenuElement[2];
me[0]=(MenuElement)this;
me[1]=getSubElements()[index];
SwingUtilities.invokeLater(new Runnable()
public void run()
MenuSelectionManager.defaultManager()
.setSelectedPath(me);
for (int i = 0; i < items.length; i++)
if (items[i] != null)
popup.add( items[i] );
// Display the popup below the TableHeader
JTableHeader header = table.getTableHeader();
Rectangle r = header.getHeaderRect( tableColumn );
popup.show(header, r.x, r.height);
int modelColumn = table.convertColumnIndexToModel( tableColumn );
popup.setSelected( items[modelColumn] );
* Responsible for processing the ActionEvent. A column will either be
* added to the table or removed from the table depending on the state
* of the menu item that was clicked.
* @param event the ActionEvent.
public void actionPerformed(ActionEvent event)
JMenuItem item = (JMenuItem)event.getSource();
JPopupMenu popup = (JPopupMenu)item.getParent();
JTableHeader header = (JTableHeader)popup.getInvoker();
JTable table = header.getTable();
if (item.isSelected())
showColumn(table, item.getText());
else
hideColumn(table, item.getText());
public static void main(String[] args)
JTable table = new JTable( new DefaultTableModel(5, 10) );
TableColumnManager.install(table);
TableColumnManager.hideColumn(table, 2);
TableColumnManager.hideColumn(table, "E");
JFrame frame = new JFrame();
frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
frame.getContentPane().add( new JScrollPane(table) );
frame.pack();
frame.setVisible( true );
}Hopefully I've made some sense. -
JComboBox in JTable not refresh automatically
Hi folks,
I put a JComboBox in a JTable cell as editor and with a GlassPane over the whole frame. Initially, I got lots of problems in dispatching events to JComboBox. Eventually, comboBox.setLightWeightPopupEnabled(false) seems solve many of them. However, after I called the said API to prevent light-weighted popup in JTable, when I move mouse on popup list or navigate with scroll bar, the UI does not refresh at all. I am pretty sure that all the models except UI has been updated because when I switch to another application and back, the UI repaints with expected appearance.
Any idea ? Thanks a lot.!I think you might be doing this to yourself. This block here:
private void tblContactFocusLost(java.awt.event.FocusEvent evt)
if (tbl.isVisible())
TableCellEditor tce = tbl.getCellEditor();
if (tce != null) tce.stopCellEditing();
}What purpose does it serve? It seems to muck up your table cell editing, including the combobox editing. If you comment out the tce.stopCellEditing() like so:
private void tblContactFocusLost(java.awt.event.FocusEvent evt)
if (tbl.isVisible())
TableCellEditor tce = tbl.getCellEditor();
if (tce != null) ; //tce.stopCellEditing();
}Things work better. -
JTable JCombox popup on click in table cell
What is the recommended way of making a JComboBox that is in a JTable cell popup when the user clicks once anywhere in the cell?
The popup is actually a calendar that works fine if the user clicks on the spot where the button shows up in the cell but sets the focus in the text box of the JComboBox is the click is anywhere else in the cell and the popup doesn't sho in that case. To get to the popup requires a click on the button.import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Test extends JFrame {
public Test() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container content = getContentPane();
String[] head = {"One","Two","Three"};
String[][] data = {{"R1-C1","R1-C2","R1-C3"},
{"R2-C1","R2-C2","R2-C3"},
{"R3-C1","R3-C2","R3-C3"}};
JTable jt = new JTable(data, head);
content.add(new JScrollPane(jt), BorderLayout.CENTER);
JComboBox jcb = new JComboBox(head);
jcb.addFocusListener(new FocusAdapter() {
public void focusGained(FocusEvent fe) {
((JComboBox)fe.getSource()).showPopup();
jt.getColumnModel().getColumn(1).setCellEditor(new DefaultCellEditor(jcb));
setSize(200, 200);
setVisible(true);
public static void main(String[] args) { new Test(); }
} -
JCombobox with a JTable as Popup
Hi!
I will ask if it's possible create a JCombobox that show a JTable instead the popup at the mouse click event.
I've drew a JComboBox and a JTable under it but I don't know how can I stop the popup menu.
Thanks for the help.you will have to make JavaBean Component for the same..
you may have to use of
- JTextFiend
- JButton
- JTable
- JLayerPane
with the specific event as you required..
Timir -
Hi All
I created a CalendarPanel, which contains a combobox for months and a spinner for year and grid of JLabels to display dates.
And, a JTable with a cell which holds a date value. I created a cell editor with JSpinner to increment or decrement date by 1, which is practically not good. So I added a button top popup the calendar and user selects the date.
Cell editor is a JPanel with a spinner and a small JButton. The click event of this button shows a Calendar (another JPanel) in which we can select the date.
The spinner in the cell editor and the Calendar are linked to each other so that if user clicks on the spinner to change the date, that change reflects in the calendar also, and vice versa.
I am able to popup the calendar on top of JTable at appropriate location (exactly below the cell) and when user selects the date it changes the value of spinner and vice versa.
With this I have two problems.
1. When user clicks on some other area of the calendar (except spinner) the calendar should automatically disappear. Right now when user double clicks on the date it disappears.
2. In the calendar panel when I click on combo box to select the month or on the spinner to change the year - table cell is losing its focus and stopping the cell editing, means no link with calendar and the cell. But this is not happening with the label click (I guess this is because JLabels have no focus)
How can I solve these 2.
Thanks in advance.1. When user clicks on some other area of the calendar
(except spinner) the calendar should automatically
disappear. Right now when user double clicks on the
date it disappears. Add a mouse listener to the other components that updates the calendar, the setVisible(false).
2. In the calendar panel when I click on combo box to
select the month or on the spinner to change the year
- table cell is losing its focus and stopping the cell
editing, means no link with calendar and the cell. But
this is not happening with the label click (I guess
this is because JLabels have no focus)
Have your cell editor extend DefaultCellEditor. In the constructor, set the editorComponent to your new calendar component. Add a mouse listener (adapter) to the editorComponent - in mouseClicked, call stopCellEditing(). -
firstlly, I'll say that I'm new swing, so bare with me....
I need to create a popup table that has two menuItems -
1. add an item to the list
2. remove an item from the list
this popup menu should work on couple of different tables (I have 3 tables so far).
I understood I should use MouseListeners, is that right?
when I use the remove MenuItem I need to know which row was pressed. how do I know this? is this information contained in the event?
I'd appreciate a code sample.
thanks.To add a popupmenu :
String[] menuItems = {"Add","Remove"};
JPopupMenu mymenu = getPopupMenu(menuItems);
// Create the menu Items
public JPopupMenu getPopupMenu(String[] menuItems){
JPopupMenu popMenu = new JPopupMenu("");
for(int i=0;i<menuItems.length;i++){
JMenuItem item = new JMenuItem(menuItems);
item.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
menuItem_clicked(e);
popMenu.add(item);
return popMenu;
// Action
private void menuItem_clicked(ActionEvent e){
String whatToDo = e.getActionCommand();
if(whatToDo=="Add"){
// Add a row
}else if(whatToDo=="Remove"){
// Remove a row
To add a Mouse Listener to the table to popup the menu :
mytable.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent e) {
table_mouseClicked(e);
// Action
private void table_mouseClicked(MouseEvent e){
// Right Click
if (e.getModifiers()==MouseEvent.META_MASK) {
// Single Click
if(e.getClickCount()==1){
mymenu.show((Component)e.getSource(), e.getX(), e.getY());
To get the row that was selected:
mytable.getSelectedRow();
Hope this helps...
globe_sa -
URGENT PLEASE ---How to open popup window after selecting a cell of JTable.
Hi,
I am struck at aproblem, I am developing an applet in which I am using TabbedPanes and each tabbed panel has either tables or some key information to display.
My Problem is, I have a JTable, which has informations related to a perticular record, each record may or may not have some more hidden information. If a record has a hidden information, then the record's cell will contain a message " click here for more information " . after clicking this cell a window will open to show the hidden information.
I have tried ListSelectionListener and MouseListener to the JTable but nothing is giving me the desired results.
Please I you could suggest me about this.You say its urgent
So urgent, so oh oh urgent
Just wait and see
How urgent my love can be
Its urgent -
Java.awt.IllegalComponentStateException in JTable
Hi folks,
I am trying to write a JTable cell validation. Input data in a cell, if failure, prompt message and set focus & editing back to the cell. I've tried InputVerifier() but it doesn't work since I can easily use the mouse click to shift to other cells in the same table.
What I am trying to do now is to define my DefaultCellEditor. I record the row & index position when getting focus. In the lost focus event, do the validation and set the focus & editing back if failure. Seems it works fine. However, when I randomly click different cells in the table quickly. It prompts:
"java.awt.IllegalComponentStateException: component must be showing on the screen to determine its location"
Here is my stack dump:
at java.awt.Component.getLocationOnScreen_NoTreeLock(Component.java:1487)
at java.awt.Component.getLocationOnScreen(Component.java:1461)
at javax.swing.Autoscroller.mouseDragged(Autoscroller.java:79)
at javax.swing.JComponent.processMouseMotionEvent(JComponent.java:2759)
at java.awt.Component.processEvent(Component.java:4822)
at java.awt.Container.processEvent(Container.java:1525)
at java.awt.Component.dispatchEventImpl(Component.java:3526)
at java.awt.Container.dispatchEventImpl(Container.java:1582)
at java.awt.Component.dispatchEvent(Component.java:3367)
at javax.swing.plaf.basic.BasicTableUI$MouseInputHandler.repostEvent(BasicTableUI.java:475)
at javax.swing.plaf.basic.BasicTableUI$MouseInputHandler.mouseDragged(BasicTableUI.java:554)
at java.awt.AWTEventMulticaster.mouseDragged(AWTEventMulticaster.java:258)
at java.awt.AWTEventMulticaster.mouseDragged(AWTEventMulticaster.java:257)
at java.awt.AWTEventMulticaster.mouseDragged(AWTEventMulticaster.java:257)
at java.awt.Component.processMouseMotionEvent(Component.java:5069)
at javax.swing.JComponent.processMouseMotionEvent(JComponent.java:2763)
at java.awt.Component.processEvent(Component.java:4822)
at java.awt.Container.processEvent(Container.java:1525)
at java.awt.Component.dispatchEventImpl(Component.java:3526)
at java.awt.Container.dispatchEventImpl(Container.java:1582)
at java.awt.Component.dispatchEvent(Component.java:3367)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3359)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3091)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3004)
at java.awt.Container.dispatchEventImpl(Container.java:1568)
at java.awt.Window.dispatchEventImpl(Window.java:1581)
at java.awt.Component.dispatchEvent(Component.java:3367)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:445)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:191)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:144)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:130)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:98)
Also, enclosed is my modified DefaultCellEditor class. Your input will be greatly appreicated. Thanks.
class NewDefaultCellEditor extends DefaultCellEditor {
public NewDefaultCellEditor(JTextField jTextField) {
super(jTextField);
this.setClickCountToStart(1);
jTextField.addFocusListener(new FocusAdapter() {
JTable tbl;
int row;
int column;
public void focusGained(FocusEvent e) {
tbl = (JTable)((JTextField)e.getSource()).getParent();
row = tbl.getEditingRow();
column = tbl.getEditingColumn();
public void focusLost(FocusEvent e) {
/*** Put validation here, execute the following if failed ***/
tbl.editCellAt(row, column);
((JTextField)e.getSource()).requestFocus();Your use in a JTable isn't too clear to me, but I feel you're overthinking the basic requirement:
I have an extended JComboBox which is meant to display its information only. Thus it
- does not allow any selection
- shows the first item of the list in the TextField only and not once more in the listI don't see the need for duplicating the model and using a popup menu listener.
import java.awt.Component;
import javax.swing.*;
public class DisplayOnlyComboBoxDemo {
public static void main(String[] args) throws Exception {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
new DisplayOnlyComboBoxDemo().makeUI();
public void makeUI() {
JFrame frame = new JFrame();
frame.add(new DisplayOnlyComboBox("One", new String[]{"Two", "Three", "Four", "Five"}));
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
class DisplayOnlyComboBox extends JComboBox {
private String firstItem;
public DisplayOnlyComboBox(String firstItem, String[] items) {
super(items);
this.firstItem = firstItem;
setRenderer(new DefaultListCellRenderer() {
@Override
public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
if (index == -1) {
setText(DisplayOnlyComboBox.this.firstItem);
return this;
}db -
Need Help: JTable POP up menu in a CellEditor to display on a right click
This was from a previous post:
I am trying to make a POP menu in a JTextComponent that has a assigned JEditorPane for a HTMLDocument to make use of the HTMLEditorKit to allow modifying HTML by the POP up menu.
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;
import java.util.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.text.*;
import javax.swing.table.*;
import javax.swing.text.html.*;
import javax.swing.undo.*;
import javax.swing.border.*;
import javax.swing.filechooser.*;
public class SimpleTableDemo extends JFrame {
public SimpleTableDemo() throws Exception {
final JTable table = new JTable(new MyTableModel());
table.setPreferredScrollableViewportSize(new Dimension(500, 70));
TableColumn fileColumn = table.getColumnModel().getColumn(2);
FileTableCellEditor editor = new FileTableCellEditor();
fileColumn.setCellRenderer(editor);
fileColumn.setCellEditor(editor);
JScrollPane scrollPane = new JScrollPane(table);
getContentPane().add(scrollPane, BorderLayout.CENTER);
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
table.setRowHeight(100);
public static void main(String[] args) throws Exception {
SimpleTableDemo frame = new SimpleTableDemo();
frame.pack();
frame.setVisible(true);
class MyTableModel extends AbstractTableModel {
String[] columnNames = {"First Name","Last Name","HTML File"};
public Object[][] data;
MyTableModel() throws Exception
data = createArray();
private Object[][] createArray() throws Exception
Object[][] data = {{"One", "Andrews", createDoc("file1.html")}
return data;
private Document createDoc(String url) throws Exception
File file = new File(url);
URL baseURL = file.toURL();
InputStream in = baseURL.openStream();
InputStreamReader r = new InputStreamReader(filterTag(in));
HTMLEditorKit kit = new HTMLEditorKit();
Document doc = kit.createDefaultDocument();
kit.read(r,doc,0);
return doc;
} // workaround for HTMLEditorKit.Parser, cant deal with "content-encoding"
private InputStream filterTag(InputStream in) throws IOException {
DataInputStream dins = new DataInputStream( in);
ByteArrayOutputStream bos = new ByteArrayOutputStream(10000);
DataInputStream din = new DataInputStream(new BufferedInputStream(in));
while (din.available() > 0) {
String line = din.readLine();
String lline = line.toLowerCase();
if (0 <= lline.indexOf("<meta ")) // skip meta tags
continue;
bos.write( line.getBytes());
din.close();
return new ByteArrayInputStream( bos.toByteArray());
public int getColumnCount() {
return columnNames.length;
public int getRowCount() {
return data.length;
public String getColumnName(int col) {
return columnNames[col];
public Object getValueAt(int row, int col) {
return data[row][col];
public Class getColumnClass(int c) {
return getValueAt(0, c).getClass();
public boolean isCellEditable(int row, int col) {
if (col >< 1) {
return false;
} else {
return true;
public class FileTableCellEditor extends JScrollPane implements TableCellEditor , TableCellRenderer
public JTextComponent jtext;
JEditorPane editor;
HTMLEditorKit kit = new HTMLEditorKit();
HTMLDocument doc = new HTMLDocument();;
private EventListenerList listenerList = new EventListenerList();
private ChangeEvent event = new ChangeEvent(this);
public FileTableCellEditor()
editor = new JEditorPane();
editor.setContentType("text/html");
doc=new HTMLDocument();
editor.addMouseListener(new MouseHandler());
editor.setEditorKit(kit);
editor.setDocument(doc);
editor.setEditable(true);
editor.setCaretColor(Color.RED);
getViewport().setView(editor);
setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column)
// System.out.println("has focus: "+hasFocus+", isSelected: "+isSelected);
if (isSelected)
table.editCellAt(row,column);
table.editCellAt(row,column);
return getTableCellEditorComponent(table,value,isSelected, row, column);
public Component getTableCellEditorComponent(JTable table,
Object value, boolean isSelected, int row, int column)
editor.setDocument((Document)value);
return this;
public boolean isCellEditable(EventObject anEvent)
{ return true;
public boolean shouldSelectCell(EventObject anEvent)
{ return true;
public void cancelCellEditing()
{ fireEditingStopped();
public boolean stopCellEditing()
{ return true;
public Object getCellEditorValue()
{ return null;
public void addCellEditorListener(CellEditorListener l)
{ listenerList.add(CellEditorListener.class, l);
public void removeCellEditorListener(CellEditorListener l)
{ listenerList.remove(CellEditorListener.class, l);
protected void fireEditingStopped()
{ Object[] listeners = listenerList.getListenerList();
for (int i = listeners.length - 2; i >= 0; i -= 2)
((CellEditorListener)listeners[i+1]).
editingStopped(event);
protected void fireEditingCanceled()
{ Object[] listeners = listenerList.getListenerList();
for (int i = listeners.length - 2; i >= 0; i -= 2)
((CellEditorListener)listeners[i+1]).
editingCanceled(event);
///////////createPopupMenu///////////////
protected JPopupMenu createPopupMenu()
JPopupMenu popup =new JPopupMenu();
popup.add(getTextComponent().getActionMap().get(HTMLEditorKit.cutAction)).setAccelerator(null);
popup.add(getTextComponent().getActionMap().get(HTMLEditorKit.copyAction)).setAccelerator(null);
popup.add(getTextComponent().getActionMap().get(HTMLEditorKit.pasteAction)).setAccelerator(null);
popup.addSeparator();
popup.add(getTextComponent().getActionMap().get("font-bold"));
popup.add(getTextComponent().getActionMap().get("font-italic"));
popup.add(getTextComponent().getActionMap().get("font-underline"));
//popup.add(getTextComponent().getActionMap().get("break"));
return popup;
public JTextComponent getTextComponent()
return jtext;
protected class MouseHandler extends MouseAdapter{
public void mouseReleased(MouseEvent me){
if(me.getButton()==MouseEvent.BUTTON3){
Point p=me.getPoint();
createPopupMenu().show((Component)me.getSource(),p.x,p.y);
}I got the pop up to work, I had to go back to and add a createActionTable editor that is a JEditorPane, vs the JTextComponent!
Here is the latest version:
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;
import java.util.*;
import java.util.HashMap;
import javax.swing.*;
import javax.swing.undo.*;
import javax.swing.event.*;
import javax.swing.text.*;
import javax.swing.table.*;
import javax.swing.text.html.*;
import javax.swing.undo.*;
import javax.swing.border.*;
import javax.swing.filechooser.*;
public class SimpleTableDemo extends JFrame {
public SimpleTableDemo() throws Exception {
final JTable table = new JTable(new MyTableModel());
table.setPreferredScrollableViewportSize(new Dimension(500, 70));
TableColumn fileColumn = table.getColumnModel().getColumn(2);
FileTableCellEditor editor = new FileTableCellEditor();
fileColumn.setCellRenderer(editor);
fileColumn.setCellEditor(editor);
JScrollPane scrollPane = new JScrollPane(table);
getContentPane().add(scrollPane, BorderLayout.CENTER);
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
table.setRowHeight(100);
public static void main(String[] args) throws Exception {
SimpleTableDemo frame = new SimpleTableDemo();
frame.pack();
frame.setVisible(true);
class MyTableModel extends AbstractTableModel {
String[] columnNames = {"First Name","Last Name","HTML File"};
public Object[][] data;
MyTableModel() throws Exception
data = createArray();
private Object[][] createArray() throws Exception
Object[][] data = {{"One", "Andrews", createDoc("file1.html")}
return data;
private Document createDoc(String url) throws Exception
File file = new File(url);
URL baseURL = file.toURL();
InputStream in = baseURL.openStream();
InputStreamReader r = new InputStreamReader(filterTag(in));
HTMLEditorKit kit = new HTMLEditorKit();
Document doc = kit.createDefaultDocument();
kit.read(r,doc,0);
return doc;
} // workaround for HTMLEditorKit.Parser, cant deal with "content-encoding"
private InputStream filterTag(InputStream in) throws IOException {
DataInputStream dins = new DataInputStream( in);
ByteArrayOutputStream bos = new ByteArrayOutputStream(10000);
DataInputStream din = new DataInputStream(new BufferedInputStream(in));
while (din.available() > 0) {
String line = din.readLine();
String lline = line.toLowerCase();
if (0 <= lline.indexOf("<meta ")) // skip meta tags
continue;
bos.write( line.getBytes());
din.close();
return new ByteArrayInputStream( bos.toByteArray());
public int getColumnCount() {
return columnNames.length;
public int getRowCount() {
return data.length;
public String getColumnName(int col) {
return columnNames[col];
public Object getValueAt(int row, int col) {
return data[row][col];
public Class getColumnClass(int c) {
return getValueAt(0, c).getClass();
public boolean isCellEditable(int row, int col) {
if (col < 1) {
return false;
} else {
return true;
public class FileTableCellEditor extends JScrollPane implements TableCellEditor , TableCellRenderer
JEditorPane editor = new JEditorPane();
HTMLEditorKit kit = new HTMLEditorKit();
HTMLDocument doc = new HTMLDocument();;
private EventListenerList listenerList = new EventListenerList();
private ChangeEvent event = new ChangeEvent(this);
HashMap<Object, Action> actions;
public FileTableCellEditor()
getContentPane();
editor.setContentType("text/html");
doc=new HTMLDocument();
editor.addMouseListener(new MouseHandler());
editor.setEditorKit(kit);
editor.setDocument(doc);
editor.setEditable(true);
editor.setCaretColor(Color.RED);
getViewport().setView(editor);
createActionTable(editor);
makeActionsPretty();
setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
public void makeActionsPretty(){
Action a;
a=editor.getActionMap().get(HTMLEditorKit.cutAction);
a.putValue(Action.SHORT_DESCRIPTION,"Cut");
a.putValue(Action.ACCELERATOR_KEY,KeyStroke.getKeyStroke('X',Event.CTRL_MASK));
a=editor.getActionMap().get(HTMLEditorKit.copyAction);
a.putValue(Action.NAME,"Copy");
a.putValue(Action.SHORT_DESCRIPTION,"Copy");
a.putValue(Action.ACCELERATOR_KEY,KeyStroke.getKeyStroke('C',Event.CTRL_MASK));
a=editor.getActionMap().get(HTMLEditorKit.pasteAction);
a.putValue(Action.NAME,"Paste");
a.putValue(Action.SHORT_DESCRIPTION,"Paste");
a.putValue(Action.ACCELERATOR_KEY,KeyStroke.getKeyStroke('V',Event.CTRL_MASK));
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column)
if (isSelected)
table.editCellAt(row,column);
table.editCellAt(row,column);
return getTableCellEditorComponent(table,value,isSelected, row, column);
public Component getTableCellEditorComponent(JTable table,
Object value, boolean isSelected, int row, int column)
editor.setDocument((Document)value);
return this;
public boolean isCellEditable(EventObject anEvent)
{ return true;
public boolean shouldSelectCell(EventObject anEvent)
{ return true;
public void cancelCellEditing()
{ fireEditingStopped();
public boolean stopCellEditing()
{ return true;
public Object getCellEditorValue()
{ return null;
public void addCellEditorListener(CellEditorListener l)
{ listenerList.add(CellEditorListener.class, l);
public void removeCellEditorListener(CellEditorListener l)
{ listenerList.remove(CellEditorListener.class, l);
protected void fireEditingStopped()
{ Object[] listeners = listenerList.getListenerList();
for (int i = listeners.length - 2; i >= 0; i -= 2)
((CellEditorListener)listeners[i+1]).
editingStopped(event);
protected JPopupMenu createPopupMenu()
JPopupMenu popup =new JPopupMenu();
popup.add(getActionByName(DefaultEditorKit.cutAction));
return popup;
protected class MouseHandler extends MouseAdapter{
public void mouseReleased(MouseEvent me){
if(me.getButton()==MouseEvent.BUTTON3){
Point p=me.getPoint();
createPopupMenu().show((Component)me.getSource(),p.x,p.y);
private void createActionTable(JTextComponent textComponent) {
actions = new HashMap<Object, Action>();
Action[] actionsArray = textComponent.getActions();
for (int i = 0; i < actionsArray.length; i++) {
Action a = actionsArray;
actions.put(a.getValue(Action.NAME), a);
private Action getActionByName(String name) {
return actions.get(name); -
JPopupMenu with JInternalFrame, popup menu doesn't work
hi, i have this problem, as shown in the sample code at the end of this post.. basically, i have a table, and i added a JPopupMenu onto the table.. the popup menu works well when running the table class, though, when i call the table class in a JInternalFrame environment, the popup menu won't work.. anyone know why?
///Basic sample table code, when run this alone, the popup menu will work
import java.util.*;
import java.awt.event.*;
import javax.swing.*;
public class TableBasic extends JPanel
private JTable table;
public TableBasic()
String[] columnNames = { "Date", "String", "Integer", "Boolean" };
Object[][] data =
{ { new Date(), "A", new Integer(1), Boolean.TRUE },
{ new Date(), "B", new Integer(2), Boolean.FALSE },
{ new Date(), "C", new Integer(9), Boolean.TRUE },
{ new Date(), "D", new Integer(4), Boolean.FALSE}
table = new JTable(data, columnNames)
//Returning the Class of each column will allow different
//renderers to be used based on Class
public Class getColumnClass(int column)
return getValueAt(0, column).getClass();
table.setPreferredScrollableViewportSize(table.getPreferredSize());
JScrollPane scrollPane = new JScrollPane(table);
add(scrollPane);
public void createPopupMenu()
JMenuItem menuItem;
//Create the popup menu.
JPopupMenu popup = new JPopupMenu();
menuItem = new JMenuItem("A popup menu item");
//menuItem.addActionListener(this);
popup.add(menuItem);
menuItem = new JMenuItem("Another popup menu item");
//menuItem.addActionListener(this);
popup.add(menuItem);
//Add listener to the text area so the popup menu can come up.
MouseListener popupListener = new PopupListener(popup);
table.addMouseListener(popupListener);
public static void main(String[] args)
JFrame frame = new JFrame();
TableBasic table = new TableBasic();
table.createPopupMenu();
frame.setContentPane(table);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
//frame.setLocationRelativeTo(null);
frame.setVisible(true);
class PopupListener extends MouseAdapter
JPopupMenu popup;
PopupListener(JPopupMenu popupMenu)
popup = popupMenu;
public void mousePressed(MouseEvent e)
maybeShowPopup(e);
public void mouseReleased(MouseEvent e)
maybeShowPopup(e);
private void maybeShowPopup(MouseEvent e)
if (e.isPopupTrigger())
popup.show(e.getComponent(), e.getX(), e.getY());
///when integrate the previous table into here, popup menu won't work
import java.awt.*;
import javax.swing.*;
public class InternalFrameBasic
extends JFrame
//implements ActionListener
private JDesktopPane desktop;
private JInternalFrame menuWindow;
public static final int desktopWidth = 800;
public static final int desktopHeight = 700;
public InternalFrameBasic(String title)
super(title);
//Set up the GUI.
desktop = new JDesktopPane();
desktop.putClientProperty("JDesktopPane.dragMode", "outline");
//Because we use pack, it's not enough to call setSize.
//We must set the desktop's preferred size.
desktop.setPreferredSize(new Dimension(desktopWidth, desktopHeight));
setContentPane(desktop);
createMenuWindow();
desktop.add(menuWindow); //DON'T FORGET THIS!!!
Dimension displaySize = menuWindow.getSize();
menuWindow.setSize(desktopWidth, displaySize.height);
private void createMenuWindow()
menuWindow =
new JInternalFrame("Event Watcher", true, //resizable
true, //closable
false, //not maximizable
true); //iconifiable
menuWindow.setContentPane(new TableBasic());
menuWindow.pack();
menuWindow.setVisible(true);
* Create the GUI and show it. For thread safety,
* this method should be invoked from the
* event-dispatching thread.
private static void createAndShowGUI()
//Make sure we have nice window decorations.
//JFrame.setDefaultLookAndFeelDecorated(true);
//Create and set up the window.
JFrame frame = new InternalFrameBasic("Example Internal Frame");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//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();
}table.createPopupMenu();The above line should not be in the main method. It should be in the constructor class of TableBasic.
You never execute that method in your InternalFrameBasic class to the mouse listener never gets added to the table. -
How to display non-URL-based thumbnail images in JTable
I'm trying to display thumbnail images as a tooltip popup for certain cells in a JTable. The thumbnail images are java image objects that have been retrieved dynamically as the result of a separate process--there is no associated URL. For this reason, I can't use the setToolTipText() method of the JTable.
My attempts to JTable's createToolTip() method also failed as it seems the ToolTipManager never calls this method for a JTable.
As a workaround, I've added a MouseMotionListener to the JTable that detects when the mouse is over the desired table cells. However, I'm not sure how to display the popup over the JTable. The only component that I can get to display over the JTable is a JPopupMenu, but I don't want to display a menu--just the image. Can anyone suggest a way to display a small popup image over the table?
Thanks.Thank You Rodney. This explains why my createToolTip() method wasn't being called, but unfortunately I'm no closer to my goal of displaying a true custom tooltip using a non-URL image rather than a text string. If I make a call to setToolTipText(), at any point, the text argument becomes the tooltip and everything I have tried in createToolTip() has no effect. However, as you pointed out, if I don't call setToolTipText(), the table is not registered with the tooltip manager and createToolTip() is never even called.
To help clarify, I have attached an SSCCE below. Please note that I use a URL image only for testing. In my actual application, the images are available only as Java objects--there are no URLs.
import javax.swing.*;
import java.awt.*;
import java.net.URL;
import java.net.MalformedURLException;
public class Test {
static Object[][] data = {
{"Cell 0,0", "Cell 0,1"},
{"Cell 1,0", "Cell 1,1"}};
static String[] columnNames = {"Column 0", "Column 1"};
static JFrame frame;
static String testImageURLName = "http://l.yimg.com/k/omg/us/img/7c/0a/4009_4182164952.jpg";
static JTable testTable = new JTable(data, columnNames) {
public JToolTip createToolTip() {
System.out.println("testTable.createToolTip() called");
Image testImage = getTestImage();
// this.setToolTipText("Table ToolTip Text");
JLabel customTipLabel = new JLabel(new ImageIcon(testImage));
customTipLabel.setToolTipText("Custom ToolTip Text");
JToolTip parentTip = super.createToolTip();
parentTip.setComponent(customTipLabel);
return parentTip;
// This image is loaded from a URL only for test purposes!!!
// Ordinarily, the image object would come from the application
// and no URL would be available.
public static Image getTestImage() {
try {
URL iconURL = new URL(testImageURLName);
ImageIcon icon = new ImageIcon(iconURL);
return icon.getImage();
catch (MalformedURLException ex) {
JOptionPane.showMessageDialog(frame,
"Set variable \"testImageName\" to a valid file name");
System.exit(1);
return null;
public static void main(String[] args) throws Exception {
frame = new JFrame("Test Table");
frame.setSize(300, 100);
// Set tool tip text so that table is registered w/ tool tip manager
testTable.setToolTipText("main tooltip");
frame.getContentPane().add(testTable);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
} -
How can I add custom right-click-menu to column headers in JTable?
Can anyone point me to a topic on how to customize a popup menu for column headers in JTable? Specifically, I want to add things like "auto-size column" and "hide column".
Thanks,
MattRight-click on your table. Then go to Advanced->Runtime Shortcut Menu->Edit.
There are only two ways to tell somebody thanks: Kudos and Marked Solutions
Unofficial Forum Rules and Guidelines -
Problem in JTable with a JComboBox cell editor
Hi gurus,
Please help! I am having a problem with a JTable that has a JComboBox cell editor. When the table is first loaded, the combo box column displays correct data. But whenever I click the combo box, the selection will be set to the first item in the combo box list once the popup menu pops up even before I make any new selection. It is very annoying.
Here is how I set the cell editor:
populateComboBoxModel(); // populate the combo box model.
DefaultCellEditor cell_editor = new DefaultCellEditor(new JComboBox(
combo_model));
contrib_table.getColumnModel().getColumn(1).setCellEditor(
cell_editor);
I didn't set the cell renderer so I assume it is using the default cell renderer.
Thanks !Not quite. The example doesn't have a different cell editor for each row of the table. I'm sure I must be missing something, bc I've found many references to the fact that this is possible to do. And I have most of it working. However, when I click on any given combobox, it automatically switches to the first value in the list, not the selected item. I've tried setting the selected item all over the code, but it has no effect on this behavior. Also, it only happens the first time I select a given cell. For example, suppose the first row has items A, B, and C, with B being the selected value. The table initially displays with B in this cell, but when I click on B, it switches to A when it brings up the list. If I select B, and move on to some other cell, and then go back and click on B again, it doesn't switch to A.
There seems to be a disconnect between the values that I display initially, and the values that I set as selected in the comboboxes. Either that, or it behaves as though I never set the selected item for the combobox at all.
Any help would be greatly appreciated. -
Combobox Autocomplete editor inside Jtable cell
I have a custom combobox editor which supports the autocomplete feature as follows:
as soon as the user keys in any character, this editor searches for the item that starts with keyed in character. This item is displayed in the editor text field and the combobox popup is set to visible and the this item is set to selected.
this editor works fine when standalone. but the popup fails to become visible when this combobox is used as an celleditor inside jtable. infact the focus is lost from the entire table.
can anyone suggest the possible reason (and solution if possible).
following are the code snippets for the same: -
private TableCellEditor addCellEditor() {
final JComboBox myJComboBox = new PIComboBox();
myJComboBox.setModel(new DefaultComboBoxModel(// some data model //));
//change the size of popup window
BasicComboPopup comboPopup = null;
for (int i=0, n=getUI().getAccessibleChildrenCount(myJComboBox); i<n; i++) {
Object component = getUI().getAccessibleChild(myJComboBox, i);
if (component instanceof BasicComboPopup) {
comboPopup = (BasicComboPopup) component;
break;
if(null != comboPopup)
comboPopup.setLayout(new GridLayout(1,1));
comboPopup.setPopupSize(new Dimension(200, 150));
myJComboBox.setEditable(true);
myJComboBox.setEditor(new ComboBoxAutoCompleteEditor(myJComboBox, 3));
myJComboBox.setUI(new ComboBoxAutoCompleteUI());
TableCellEditor myCellEditor = new DefaultCellEditor(myJComboBox );
return myCellEditor;
public class ComboBoxAutoCompleteEditor extends BasicComboBoxEditor {
public ComboBoxAutoCompleteEditor(PIComboBox comboBox, int maxLength) {
super();
this.comboBox = comboBox;
this.maxLength = maxLength;
@Override
public Component getEditorComponent() {
if(null == editorComponent)
editorComponent = new PITextField();
editorComponent.setBorder(null);
editorComponent.setMaxLength(maxLength);
editorComponent.setDocument(getDocument());
return editorComponent;
private ComboBoxAutoCompleteDocument getDocument()
if(null == comboBoxAutoCompleteDocument)
comboBoxAutoCompleteDocument = new ComboBoxAutoCompleteDocument(
this.comboBox.getModel());
comboBoxAutoCompleteDocument.addDocumentListener(new ComboBoxDocumentListener());
return comboBoxAutoCompleteDocument;
private class ComboBoxDocumentListener implements DocumentListener {
public void insertUpdate(DocumentEvent e) {
if (updatingSelection) {
return;
SwingUtilities.invokeLater(new ScrollHandler());
public void removeUpdate(DocumentEvent e) {
public void changedUpdate(DocumentEvent e) {
private class ScrollHandler implements Runnable {
private String scrollToString;
private int scrollToRow;
private ScrollHandler() {
try {
int length = getDocument().getLength();
String text = getDocument().getText(0, length);
scrollToRow = -1;
scrollToString = (String) comboBox.getSelectedItem();
ComboBoxModel model = comboBox.getModel();
int size = model.getSize();
for (int i = 0; i < size; i++) {
String item = model.getElementAt(i).toString();
if (item.startsWith(text)) {
scrollToString = item;
break;
scrollToRow++;
} catch (BadLocationException ble) {
// TODO: handle
ble.printStackTrace();
public void run() {
final int matchCount = getDocument()
.getCurrentMatchCount();
updatingSelection = true;
comboBox.setSelectedItem(scrollToString);
if (comboBox.isDisplayable())
comboBox.showPopup();
updatingSelection = false;
if (scrollToRow != comboBox.getItemCount() - 1) {
ComboBoxAutoCompleteUI ui = (ComboBoxAutoCompleteUI) comboBox
.getUI();
JList popupList = ui.getPopupList();
int rowsToAdd = Math.min(comboBox.getMaximumRowCount(), comboBox
.getItemCount()
- scrollToRow - 1);
popupList.scrollRectToVisible(popupList.getCellBounds(
scrollToRow + rowsToAdd, scrollToRow + rowsToAdd));
if (matchCount > 0) {
((PITextField)getEditorComponent()).setSelectionStart(matchCount);
((PITextField)getEditorComponent()).setSelectionEnd(
getDocument().getLength());
public class ComboBoxAutoCompleteUI extends BasicComboBoxUI {
JList getPopupList() {
return popup.getList();
public class ComboBoxAutoCompleteDocument extends PlainDocument {
public void insertString(int offs, String str, AttributeSet a) throws BadLocationException {
currentMatchCount = getLength() + str.length();
String currentText = getText(0, getLength());
//search the matching string here
offs = 0;
remove(0, getLength());
super.insertString(offs, str, a);
**************You need to create a custom CellEditor which will prevent these problems from occurring. The explanation behind the problem and source code for the new editor can be found at Thomas Bierhance's site http://www.orbital-computer.de/JComboBox/. The description of the problem and the workaround are at the bottom of the page.
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