JSpinner inside JTable
I implemented a JTable where a Column is of 'type' JSpinner. I have a class
SpinnerRenderer implements TableCellRenderer to implement JSpinner rendering in the cell
and a class
SpinnerCellEditor extends AbstractCellEditor
implements TableCellEditor to return a JSpinner to edit.
Note: both classes return proper JSpinner located in a global Vector
without creating a new one each time.
My problem is where to place the fireEditingStopped method of SpinnerCellEditor as some JSpinner remains
active, no more linked to the JTable rendering and repainted without rigth context.
Any suggestion would be really welcome.
Thanks
jjmoka
Try these:
http://www.mail-archive.com/[email protected]/msg01181.html
http://javaalmanac.com/egs/javax.swing.table/Spinner.html?l=rel
and/or, Google for "jspinner jtable"
Jamie
Similar Messages
-
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.
-
Plz tell me how to use JSpinner with JTable
I have retrieve records from database but as the number of records(rows) are more than 1000 , i want to use JSpinner with JTable . plz solve my problem by giving the appropriate code for the same.
hi
check this links
http://www.exampledepot.com/egs/javax.swing.table/CustRend.html
http://java.sun.com/docs/books/tutorial/uiswing/components/table.html
hope this will help you.. this explains exactly what you want.
regards
Aniruddha -
Hi,
I have a custom JList Renderer/Editor inside a JTable. Both the renderer and editor seem to be working fine, but if the List contains more data than will fit in the table cell, you can't see the rest of the data. I have a separate class for the renderer and the editor (both of which extend JList) and I have tried using the setAutoscrolls method and creating a JScrollPane in the constructor, neither of which seems to work. How can I put a scrollable JList as a cell in a JTable?Hi jhooie,
Will you please send me the working codes for creating the JList inside JTable. I am in urgent need of the help.
My email id is [email protected]
Thank you,
satheesh kumar -
I have a jcombobox inside jtable.now i want to access its items by keys only..without using F2 key.for example if i press 's' key..the whole combobox shud popup and value 'string' is selected.please help me regarding this.
I am not sure if I understand your question exactly. Your table's row height is not high enough so you may need to add a line of code like:
table.setRowHeight(table.getRowHeight() + 4);to solve your problem. -
I have retrieve records from database but as the number of records(rows) are more than 1000 , i want to use JSpinner with JTable. How can i do so?
you can start by being more clear on what your requirements are.
-
JTextArea inside Jtable - Tab, Focus issues
I am facing the following problems with JTextArea inside Jtable Cell
1. blinking cursor not visible on the cell(0,0) first time the UI is shown, although it has the focus
2. blinking cursor not visible on the 5th column (JTextArea) when it receives the focus nor the characters are visible when i start typing. i have to manually double click to force the focus to shift to the cell.
3. focus does not shit out of the 5th column (JTextArea) after pressing the tab key or enter key once. i have to do that twice to force the focus out.
Following is the code which i have implemented. Please let me know what is being missed out to rectify the above problems.
Thanks.
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.BorderFactory;
import javax.swing.DefaultCellEditor;
import javax.swing.InputMap;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.KeyStroke;
public class test extends JFrame {
JTable table;
public test() {
table = new JTable(15, 5) {
public boolean isCellEditable(int row, int column) {
return column % 2 == 0;
// return true;
public void changeSelection(final int row, final int column,
boolean toggle, boolean extend) {
super.changeSelection(row, column, toggle, extend);
if (editCellAt(row, column)) {
getEditorComponent().requestFocusInWindow();
table.setPreferredScrollableViewportSize(table.getPreferredSize());
table.putClientProperty("terminateEditOnFocusLost", Boolean.TRUE);
TextAreaRenderer textAreaRenderer = new TextAreaRenderer();
TextAreaEditor textEditor = new TextAreaEditor();
table.getColumnModel().getColumn(4).setCellRenderer(textAreaRenderer);
table.getColumnModel().getColumn(4).setCellEditor(textEditor);
JTextField tf = new JTextField();
tf.setBorder(BorderFactory.createEmptyBorder());
table.setDefaultEditor(Object.class, new DefaultCellEditor((tf)));
JScrollPane scrollPane = new JScrollPane(table);
DefaultCellEditor dce = (DefaultCellEditor) table
.getDefaultEditor(Object.class);
dce.setClickCountToStart(1);
getContentPane().add(scrollPane);
InputMap im = table
.getInputMap(JTable.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
// Have the enter key work the same as the tab key
KeyStroke tab = KeyStroke.getKeyStroke(KeyEvent.VK_TAB, 0);
KeyStroke enter = KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0);
im.put(enter, im.get(tab));
// Disable the right arrow key
KeyStroke right = KeyStroke.getKeyStroke(KeyEvent.VK_RIGHT, 0);
im.put(right, "none");
// Override the default tab behaviour
// Tab to the next editable cell. When no editable cells goto next cell.
final Action oldTabAction = table.getActionMap().get(im.get(tab));
Action tabAction = new AbstractAction() {
public void actionPerformed(ActionEvent e) {
oldTabAction.actionPerformed(e);
JTable table = (JTable) e.getSource();
int rowCount = table.getRowCount();
int columnCount = table.getColumnCount();
int row = table.getSelectedRow();
int column = table.getSelectedColumn();
while (!table.isCellEditable(row, column)) {
column += 1;
if (column == columnCount) {
column = 0;
row += 1;
if (row == rowCount) {
row = 0;
// Back to where we started, get out.
if (row == table.getSelectedRow()
&& column == table.getSelectedColumn()) {
break;
table.changeSelection(row, column, false, false);
table.getActionMap().put(im.get(tab), tabAction);
table.setSurrendersFocusOnKeystroke(true);
public static void main(String[] args) {
test frame = new test();
frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
import java.awt.Component;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import javax.swing.JTable;
import javax.swing.JTextArea;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;
public class TextAreaRenderer extends JTextArea implements TableCellRenderer {
private final DefaultTableCellRenderer adaptee = new DefaultTableCellRenderer();
/** map from table to map of rows to map of column heights */
private final Map cellSizes = new HashMap();
public TextAreaRenderer() {
setLineWrap(true);
setWrapStyleWord(true);
public Component getTableCellRendererComponent(//
JTable table, Object obj, boolean isSelected, boolean hasFocus,
int row, int column) {
// set the colours, etc. using the standard for that platform
adaptee.getTableCellRendererComponent(table, obj, isSelected, hasFocus,
row, column);
setForeground(adaptee.getForeground());
setBackground(adaptee.getBackground());
setBorder(adaptee.getBorder());
setFont(adaptee.getFont());
setText(adaptee.getText());
// This line was very important to get it working with JDK1.4
TableColumnModel columnModel = table.getColumnModel();
setSize(columnModel.getColumn(column).getWidth(), 100000);
int height_wanted = (int) getPreferredSize().getHeight();
addSize(table, row, column, height_wanted);
height_wanted = findTotalMaximumRowSize(table, row);
if (height_wanted != table.getRowHeight(row)) {
table.setRowHeight(row, height_wanted);
return this;
private void addSize(JTable table, int row, int column, int height) {
Map rows = (Map) cellSizes.get(table);
if (rows == null) {
cellSizes.put(table, rows = new HashMap());
Map rowheights = (Map) rows.get(new Integer(row));
if (rowheights == null) {
rows.put(new Integer(row), rowheights = new HashMap());
rowheights.put(new Integer(column), new Integer(height));
* Look through all columns and get the renderer. If it is also a
* TextAreaRenderer, we look at the maximum height in its hash table for
* this row.
private int findTotalMaximumRowSize(JTable table, int row) {
int maximum_height = 0;
Enumeration columns = table.getColumnModel().getColumns();
while (columns.hasMoreElements()) {
TableColumn tc = (TableColumn) columns.nextElement();
TableCellRenderer cellRenderer = tc.getCellRenderer();
if (cellRenderer instanceof TextAreaRenderer) {
TextAreaRenderer tar = (TextAreaRenderer) cellRenderer;
maximum_height = Math.max(maximum_height, tar
.findMaximumRowSize(table, row));
return maximum_height;
private int findMaximumRowSize(JTable table, int row) {
Map rows = (Map) cellSizes.get(table);
if (rows == null)
return 0;
Map rowheights = (Map) rows.get(new Integer(row));
if (rowheights == null)
return 0;
int maximum_height = 0;
for (Iterator it = rowheights.entrySet().iterator(); it.hasNext();) {
Map.Entry entry = (Map.Entry) it.next();
int cellHeight = ((Integer) entry.getValue()).intValue();
maximum_height = Math.max(maximum_height, cellHeight);
return maximum_height;
import java.awt.KeyboardFocusManager;
import java.awt.event.FocusEvent;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import java.util.HashSet;
import java.util.Set;
import javax.swing.DefaultCellEditor;
import javax.swing.JComponent;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.KeyStroke;
public class TextAreaEditor extends DefaultCellEditor {
public TextAreaEditor() {
super(new JTextField());
final JTextArea textArea = new JTextArea();
textArea.setWrapStyleWord(true);
textArea.setLineWrap(true);
JScrollPane scrollPane = new JScrollPane(textArea);
scrollPane.setBorder(null);
Set forwardTraversalKeys = new HashSet();
forwardTraversalKeys.add(KeyStroke.getKeyStroke(KeyEvent.VK_TAB, 0));
textArea.setFocusTraversalKeys(
KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
forwardTraversalKeys);
Set backwardTraversalKeys = new HashSet();
backwardTraversalKeys.add(KeyStroke.getKeyStroke(KeyEvent.VK_TAB,
InputEvent.SHIFT_MASK));
textArea.setFocusTraversalKeys(
KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
backwardTraversalKeys);
scrollPane.getVerticalScrollBar().setFocusable(false);
scrollPane.getVerticalScrollBar().setFocusable(false);
editorComponent = scrollPane;
delegate = new DefaultCellEditor.EditorDelegate() {
public void setValue(Object value) {
textArea.setText((value != null) ? value.toString() : "");
public Object getCellEditorValue() {
return textArea.getText();
public void lostFocus() {
stopCellEditing();
--------------------------------------------I am facing the following problems with JTextArea inside Jtable Cell
1. blinking cursor not visible on the cell(0,0) first time the UI is shown, although it has the focus
2. blinking cursor not visible on the 5th column (JTextArea) when it receives the focus nor the characters are visible when i start typing. i have to manually double click to force the focus to shift to the cell.
3. focus does not shit out of the 5th column (JTextArea) after pressing the tab key or enter key once. i have to do that twice to force the focus out.
Following is the code which i have implemented. Please let me know what is being missed out to rectify the above problems.
Thanks.
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.BorderFactory;
import javax.swing.DefaultCellEditor;
import javax.swing.InputMap;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.KeyStroke;
public class test extends JFrame {
JTable table;
public test() {
table = new JTable(15, 5) {
public boolean isCellEditable(int row, int column) {
return column % 2 == 0;
// return true;
public void changeSelection(final int row, final int column,
boolean toggle, boolean extend) {
super.changeSelection(row, column, toggle, extend);
if (editCellAt(row, column)) {
getEditorComponent().requestFocusInWindow();
table.setPreferredScrollableViewportSize(table.getPreferredSize());
table.putClientProperty("terminateEditOnFocusLost", Boolean.TRUE);
TextAreaRenderer textAreaRenderer = new TextAreaRenderer();
TextAreaEditor textEditor = new TextAreaEditor();
table.getColumnModel().getColumn(4).setCellRenderer(textAreaRenderer);
table.getColumnModel().getColumn(4).setCellEditor(textEditor);
JTextField tf = new JTextField();
tf.setBorder(BorderFactory.createEmptyBorder());
table.setDefaultEditor(Object.class, new DefaultCellEditor((tf)));
JScrollPane scrollPane = new JScrollPane(table);
DefaultCellEditor dce = (DefaultCellEditor) table
.getDefaultEditor(Object.class);
dce.setClickCountToStart(1);
getContentPane().add(scrollPane);
InputMap im = table
.getInputMap(JTable.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
// Have the enter key work the same as the tab key
KeyStroke tab = KeyStroke.getKeyStroke(KeyEvent.VK_TAB, 0);
KeyStroke enter = KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0);
im.put(enter, im.get(tab));
// Disable the right arrow key
KeyStroke right = KeyStroke.getKeyStroke(KeyEvent.VK_RIGHT, 0);
im.put(right, "none");
// Override the default tab behaviour
// Tab to the next editable cell. When no editable cells goto next cell.
final Action oldTabAction = table.getActionMap().get(im.get(tab));
Action tabAction = new AbstractAction() {
public void actionPerformed(ActionEvent e) {
oldTabAction.actionPerformed(e);
JTable table = (JTable) e.getSource();
int rowCount = table.getRowCount();
int columnCount = table.getColumnCount();
int row = table.getSelectedRow();
int column = table.getSelectedColumn();
while (!table.isCellEditable(row, column)) {
column += 1;
if (column == columnCount) {
column = 0;
row += 1;
if (row == rowCount) {
row = 0;
// Back to where we started, get out.
if (row == table.getSelectedRow()
&& column == table.getSelectedColumn()) {
break;
table.changeSelection(row, column, false, false);
table.getActionMap().put(im.get(tab), tabAction);
table.setSurrendersFocusOnKeystroke(true);
public static void main(String[] args) {
test frame = new test();
frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
import java.awt.Component;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import javax.swing.JTable;
import javax.swing.JTextArea;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;
public class TextAreaRenderer extends JTextArea implements TableCellRenderer {
private final DefaultTableCellRenderer adaptee = new DefaultTableCellRenderer();
/** map from table to map of rows to map of column heights */
private final Map cellSizes = new HashMap();
public TextAreaRenderer() {
setLineWrap(true);
setWrapStyleWord(true);
public Component getTableCellRendererComponent(//
JTable table, Object obj, boolean isSelected, boolean hasFocus,
int row, int column) {
// set the colours, etc. using the standard for that platform
adaptee.getTableCellRendererComponent(table, obj, isSelected, hasFocus,
row, column);
setForeground(adaptee.getForeground());
setBackground(adaptee.getBackground());
setBorder(adaptee.getBorder());
setFont(adaptee.getFont());
setText(adaptee.getText());
// This line was very important to get it working with JDK1.4
TableColumnModel columnModel = table.getColumnModel();
setSize(columnModel.getColumn(column).getWidth(), 100000);
int height_wanted = (int) getPreferredSize().getHeight();
addSize(table, row, column, height_wanted);
height_wanted = findTotalMaximumRowSize(table, row);
if (height_wanted != table.getRowHeight(row)) {
table.setRowHeight(row, height_wanted);
return this;
private void addSize(JTable table, int row, int column, int height) {
Map rows = (Map) cellSizes.get(table);
if (rows == null) {
cellSizes.put(table, rows = new HashMap());
Map rowheights = (Map) rows.get(new Integer(row));
if (rowheights == null) {
rows.put(new Integer(row), rowheights = new HashMap());
rowheights.put(new Integer(column), new Integer(height));
* Look through all columns and get the renderer. If it is also a
* TextAreaRenderer, we look at the maximum height in its hash table for
* this row.
private int findTotalMaximumRowSize(JTable table, int row) {
int maximum_height = 0;
Enumeration columns = table.getColumnModel().getColumns();
while (columns.hasMoreElements()) {
TableColumn tc = (TableColumn) columns.nextElement();
TableCellRenderer cellRenderer = tc.getCellRenderer();
if (cellRenderer instanceof TextAreaRenderer) {
TextAreaRenderer tar = (TextAreaRenderer) cellRenderer;
maximum_height = Math.max(maximum_height, tar
.findMaximumRowSize(table, row));
return maximum_height;
private int findMaximumRowSize(JTable table, int row) {
Map rows = (Map) cellSizes.get(table);
if (rows == null)
return 0;
Map rowheights = (Map) rows.get(new Integer(row));
if (rowheights == null)
return 0;
int maximum_height = 0;
for (Iterator it = rowheights.entrySet().iterator(); it.hasNext();) {
Map.Entry entry = (Map.Entry) it.next();
int cellHeight = ((Integer) entry.getValue()).intValue();
maximum_height = Math.max(maximum_height, cellHeight);
return maximum_height;
import java.awt.KeyboardFocusManager;
import java.awt.event.FocusEvent;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import java.util.HashSet;
import java.util.Set;
import javax.swing.DefaultCellEditor;
import javax.swing.JComponent;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.KeyStroke;
public class TextAreaEditor extends DefaultCellEditor {
public TextAreaEditor() {
super(new JTextField());
final JTextArea textArea = new JTextArea();
textArea.setWrapStyleWord(true);
textArea.setLineWrap(true);
JScrollPane scrollPane = new JScrollPane(textArea);
scrollPane.setBorder(null);
Set forwardTraversalKeys = new HashSet();
forwardTraversalKeys.add(KeyStroke.getKeyStroke(KeyEvent.VK_TAB, 0));
textArea.setFocusTraversalKeys(
KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
forwardTraversalKeys);
Set backwardTraversalKeys = new HashSet();
backwardTraversalKeys.add(KeyStroke.getKeyStroke(KeyEvent.VK_TAB,
InputEvent.SHIFT_MASK));
textArea.setFocusTraversalKeys(
KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
backwardTraversalKeys);
scrollPane.getVerticalScrollBar().setFocusable(false);
scrollPane.getVerticalScrollBar().setFocusable(false);
editorComponent = scrollPane;
delegate = new DefaultCellEditor.EditorDelegate() {
public void setValue(Object value) {
textArea.setText((value != null) ? value.toString() : "");
public Object getCellEditorValue() {
return textArea.getText();
public void lostFocus() {
stopCellEditing();
-------------------------------------------- -
Reposting - JTextArea inside Jtable - Tab, Focus issues
Sorry for reposting this again...I didn't format the code in my previous post.
I am facing the following problems with JTextArea inside Jtable Cell
1. blinking cursor not visible on the cell(0,0) first time the UI is shown, although it has the focus
2. blinking cursor not visible on the 5th column (JTextArea) when it receives the focus nor the characters are visible when i start typing. i have to manually double click to force the focus to shift to the cell.
3. focus does not shit out of the 5th column (JTextArea) after pressing the tab key or enter key once. i have to do that twice to force the focus out.
Following is the code which i have implemented. Please let me know what is being missed out to rectify the above problems.
Thanks.
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.BorderFactory;
import javax.swing.DefaultCellEditor;
import javax.swing.InputMap;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.KeyStroke;
public class test extends JFrame {
JTable table;
public test() {
table = new JTable(15, 5) {
public boolean isCellEditable(int row, int column) {
return column % 2 == 0;
// return true;
public void changeSelection(final int row, final int column,
boolean toggle, boolean extend) {
super.changeSelection(row, column, toggle, extend);
if (editCellAt(row, column)) {
getEditorComponent().requestFocusInWindow();
table.setPreferredScrollableViewportSize(table.getPreferredSize());
table.putClientProperty("terminateEditOnFocusLost", Boolean.TRUE);
TextAreaRenderer textAreaRenderer = new TextAreaRenderer();
TextAreaEditor textEditor = new TextAreaEditor();
table.getColumnModel().getColumn(4).setCellRenderer(textAreaRenderer);
table.getColumnModel().getColumn(4).setCellEditor(textEditor);
JTextField tf = new JTextField();
tf.setBorder(BorderFactory.createEmptyBorder());
table.setDefaultEditor(Object.class, new DefaultCellEditor((tf)));
JScrollPane scrollPane = new JScrollPane(table);
DefaultCellEditor dce = (DefaultCellEditor) table
.getDefaultEditor(Object.class);
dce.setClickCountToStart(1);
getContentPane().add(scrollPane);
InputMap im = table
.getInputMap(JTable.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
// Have the enter key work the same as the tab key
KeyStroke tab = KeyStroke.getKeyStroke(KeyEvent.VK_TAB, 0);
KeyStroke enter = KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0);
im.put(enter, im.get(tab));
// Disable the right arrow key
KeyStroke right = KeyStroke.getKeyStroke(KeyEvent.VK_RIGHT, 0);
im.put(right, "none");
// Override the default tab behaviour
// Tab to the next editable cell. When no editable cells goto next cell.
final Action oldTabAction = table.getActionMap().get(im.get(tab));
Action tabAction = new AbstractAction() {
public void actionPerformed(ActionEvent e) {
oldTabAction.actionPerformed(e);
JTable table = (JTable) e.getSource();
int rowCount = table.getRowCount();
int columnCount = table.getColumnCount();
int row = table.getSelectedRow();
int column = table.getSelectedColumn();
while (!table.isCellEditable(row, column)) {
column += 1;
if (column == columnCount) {
column = 0;
row += 1;
if (row == rowCount) {
row = 0;
// Back to where we started, get out.
if (row == table.getSelectedRow()
&& column == table.getSelectedColumn()) {
break;
table.changeSelection(row, column, false, false);
table.getActionMap().put(im.get(tab), tabAction);
table.setSurrendersFocusOnKeystroke(true);
public static void main(String[] args) {
test frame = new test();
frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
import java.awt.Component;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import javax.swing.JTable;
import javax.swing.JTextArea;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;
public class TextAreaRenderer extends JTextArea implements TableCellRenderer {
private final DefaultTableCellRenderer adaptee = new DefaultTableCellRenderer();
/** map from table to map of rows to map of column heights */
private final Map cellSizes = new HashMap();
public TextAreaRenderer() {
setLineWrap(true);
setWrapStyleWord(true);
public Component getTableCellRendererComponent(//
JTable table, Object obj, boolean isSelected, boolean hasFocus,
int row, int column) {
// set the colours, etc. using the standard for that platform
adaptee.getTableCellRendererComponent(table, obj, isSelected, hasFocus,
row, column);
setForeground(adaptee.getForeground());
setBackground(adaptee.getBackground());
setBorder(adaptee.getBorder());
setFont(adaptee.getFont());
setText(adaptee.getText());
// This line was very important to get it working with JDK1.4
TableColumnModel columnModel = table.getColumnModel();
setSize(columnModel.getColumn(column).getWidth(), 100000);
int height_wanted = (int) getPreferredSize().getHeight();
addSize(table, row, column, height_wanted);
height_wanted = findTotalMaximumRowSize(table, row);
if (height_wanted != table.getRowHeight(row)) {
table.setRowHeight(row, height_wanted);
return this;
private void addSize(JTable table, int row, int column, int height) {
Map rows = (Map) cellSizes.get(table);
if (rows == null) {
cellSizes.put(table, rows = new HashMap());
Map rowheights = (Map) rows.get(new Integer(row));
if (rowheights == null) {
rows.put(new Integer(row), rowheights = new HashMap());
rowheights.put(new Integer(column), new Integer(height));
* Look through all columns and get the renderer. If it is also a
* TextAreaRenderer, we look at the maximum height in its hash table for
* this row.
private int findTotalMaximumRowSize(JTable table, int row) {
int maximum_height = 0;
Enumeration columns = table.getColumnModel().getColumns();
while (columns.hasMoreElements()) {
TableColumn tc = (TableColumn) columns.nextElement();
TableCellRenderer cellRenderer = tc.getCellRenderer();
if (cellRenderer instanceof TextAreaRenderer) {
TextAreaRenderer tar = (TextAreaRenderer) cellRenderer;
maximum_height = Math.max(maximum_height, tar
.findMaximumRowSize(table, row));
return maximum_height;
private int findMaximumRowSize(JTable table, int row) {
Map rows = (Map) cellSizes.get(table);
if (rows == null)
return 0;
Map rowheights = (Map) rows.get(new Integer(row));
if (rowheights == null)
return 0;
int maximum_height = 0;
for (Iterator it = rowheights.entrySet().iterator(); it.hasNext();) {
Map.Entry entry = (Map.Entry) it.next();
int cellHeight = ((Integer) entry.getValue()).intValue();
maximum_height = Math.max(maximum_height, cellHeight);
return maximum_height;
import java.awt.KeyboardFocusManager;
import java.awt.event.FocusEvent;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import java.util.HashSet;
import java.util.Set;
import javax.swing.DefaultCellEditor;
import javax.swing.JComponent;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.KeyStroke;
public class TextAreaEditor extends DefaultCellEditor {
public TextAreaEditor() {
super(new JTextField());
final JTextArea textArea = new JTextArea();
textArea.setWrapStyleWord(true);
textArea.setLineWrap(true);
JScrollPane scrollPane = new JScrollPane(textArea);
scrollPane.setBorder(null);
Set forwardTraversalKeys = new HashSet();
forwardTraversalKeys.add(KeyStroke.getKeyStroke(KeyEvent.VK_TAB, 0));
textArea.setFocusTraversalKeys(
KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
forwardTraversalKeys);
Set backwardTraversalKeys = new HashSet();
backwardTraversalKeys.add(KeyStroke.getKeyStroke(KeyEvent.VK_TAB,
InputEvent.SHIFT_MASK));
textArea.setFocusTraversalKeys(
KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
backwardTraversalKeys);
scrollPane.getVerticalScrollBar().setFocusable(false);
scrollPane.getVerticalScrollBar().setFocusable(false);
editorComponent = scrollPane;
delegate = new DefaultCellEditor.EditorDelegate() {
public void setValue(Object value) {
textArea.setText((value != null) ? value.toString() : "");
public Object getCellEditorValue() {
return textArea.getText();
public void lostFocus() {
stopCellEditing();
}Sorry for reposting this again...I didn't format the code in my previous post.
I am facing the following problems with JTextArea inside Jtable Cell
1. blinking cursor not visible on the cell(0,0) first time the UI is shown, although it has the focus
2. blinking cursor not visible on the 5th column (JTextArea) when it receives the focus nor the characters are visible when i start typing. i have to manually double click to force the focus to shift to the cell.
3. focus does not shit out of the 5th column (JTextArea) after pressing the tab key or enter key once. i have to do that twice to force the focus out.
Following is the code which i have implemented. Please let me know what is being missed out to rectify the above problems.
Thanks.
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.BorderFactory;
import javax.swing.DefaultCellEditor;
import javax.swing.InputMap;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.KeyStroke;
public class test extends JFrame {
JTable table;
public test() {
table = new JTable(15, 5) {
public boolean isCellEditable(int row, int column) {
return column % 2 == 0;
// return true;
public void changeSelection(final int row, final int column,
boolean toggle, boolean extend) {
super.changeSelection(row, column, toggle, extend);
if (editCellAt(row, column)) {
getEditorComponent().requestFocusInWindow();
table.setPreferredScrollableViewportSize(table.getPreferredSize());
table.putClientProperty("terminateEditOnFocusLost", Boolean.TRUE);
TextAreaRenderer textAreaRenderer = new TextAreaRenderer();
TextAreaEditor textEditor = new TextAreaEditor();
table.getColumnModel().getColumn(4).setCellRenderer(textAreaRenderer);
table.getColumnModel().getColumn(4).setCellEditor(textEditor);
JTextField tf = new JTextField();
tf.setBorder(BorderFactory.createEmptyBorder());
table.setDefaultEditor(Object.class, new DefaultCellEditor((tf)));
JScrollPane scrollPane = new JScrollPane(table);
DefaultCellEditor dce = (DefaultCellEditor) table
.getDefaultEditor(Object.class);
dce.setClickCountToStart(1);
getContentPane().add(scrollPane);
InputMap im = table
.getInputMap(JTable.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
// Have the enter key work the same as the tab key
KeyStroke tab = KeyStroke.getKeyStroke(KeyEvent.VK_TAB, 0);
KeyStroke enter = KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0);
im.put(enter, im.get(tab));
// Disable the right arrow key
KeyStroke right = KeyStroke.getKeyStroke(KeyEvent.VK_RIGHT, 0);
im.put(right, "none");
// Override the default tab behaviour
// Tab to the next editable cell. When no editable cells goto next cell.
final Action oldTabAction = table.getActionMap().get(im.get(tab));
Action tabAction = new AbstractAction() {
public void actionPerformed(ActionEvent e) {
oldTabAction.actionPerformed(e);
JTable table = (JTable) e.getSource();
int rowCount = table.getRowCount();
int columnCount = table.getColumnCount();
int row = table.getSelectedRow();
int column = table.getSelectedColumn();
while (!table.isCellEditable(row, column)) {
column += 1;
if (column == columnCount) {
column = 0;
row += 1;
if (row == rowCount) {
row = 0;
// Back to where we started, get out.
if (row == table.getSelectedRow()
&& column == table.getSelectedColumn()) {
break;
table.changeSelection(row, column, false, false);
table.getActionMap().put(im.get(tab), tabAction);
table.setSurrendersFocusOnKeystroke(true);
public static void main(String[] args) {
test frame = new test();
frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
import java.awt.Component;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import javax.swing.JTable;
import javax.swing.JTextArea;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;
public class TextAreaRenderer extends JTextArea implements TableCellRenderer {
private final DefaultTableCellRenderer adaptee = new DefaultTableCellRenderer();
/** map from table to map of rows to map of column heights */
private final Map cellSizes = new HashMap();
public TextAreaRenderer() {
setLineWrap(true);
setWrapStyleWord(true);
public Component getTableCellRendererComponent(//
JTable table, Object obj, boolean isSelected, boolean hasFocus,
int row, int column) {
// set the colours, etc. using the standard for that platform
adaptee.getTableCellRendererComponent(table, obj, isSelected, hasFocus,
row, column);
setForeground(adaptee.getForeground());
setBackground(adaptee.getBackground());
setBorder(adaptee.getBorder());
setFont(adaptee.getFont());
setText(adaptee.getText());
// This line was very important to get it working with JDK1.4
TableColumnModel columnModel = table.getColumnModel();
setSize(columnModel.getColumn(column).getWidth(), 100000);
int height_wanted = (int) getPreferredSize().getHeight();
addSize(table, row, column, height_wanted);
height_wanted = findTotalMaximumRowSize(table, row);
if (height_wanted != table.getRowHeight(row)) {
table.setRowHeight(row, height_wanted);
return this;
private void addSize(JTable table, int row, int column, int height) {
Map rows = (Map) cellSizes.get(table);
if (rows == null) {
cellSizes.put(table, rows = new HashMap());
Map rowheights = (Map) rows.get(new Integer(row));
if (rowheights == null) {
rows.put(new Integer(row), rowheights = new HashMap());
rowheights.put(new Integer(column), new Integer(height));
* Look through all columns and get the renderer. If it is also a
* TextAreaRenderer, we look at the maximum height in its hash table for
* this row.
private int findTotalMaximumRowSize(JTable table, int row) {
int maximum_height = 0;
Enumeration columns = table.getColumnModel().getColumns();
while (columns.hasMoreElements()) {
TableColumn tc = (TableColumn) columns.nextElement();
TableCellRenderer cellRenderer = tc.getCellRenderer();
if (cellRenderer instanceof TextAreaRenderer) {
TextAreaRenderer tar = (TextAreaRenderer) cellRenderer;
maximum_height = Math.max(maximum_height, tar
.findMaximumRowSize(table, row));
return maximum_height;
private int findMaximumRowSize(JTable table, int row) {
Map rows = (Map) cellSizes.get(table);
if (rows == null)
return 0;
Map rowheights = (Map) rows.get(new Integer(row));
if (rowheights == null)
return 0;
int maximum_height = 0;
for (Iterator it = rowheights.entrySet().iterator(); it.hasNext();) {
Map.Entry entry = (Map.Entry) it.next();
int cellHeight = ((Integer) entry.getValue()).intValue();
maximum_height = Math.max(maximum_height, cellHeight);
return maximum_height;
import java.awt.KeyboardFocusManager;
import java.awt.event.FocusEvent;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import java.util.HashSet;
import java.util.Set;
import javax.swing.DefaultCellEditor;
import javax.swing.JComponent;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.KeyStroke;
public class TextAreaEditor extends DefaultCellEditor {
public TextAreaEditor() {
super(new JTextField());
final JTextArea textArea = new JTextArea();
textArea.setWrapStyleWord(true);
textArea.setLineWrap(true);
JScrollPane scrollPane = new JScrollPane(textArea);
scrollPane.setBorder(null);
Set forwardTraversalKeys = new HashSet();
forwardTraversalKeys.add(KeyStroke.getKeyStroke(KeyEvent.VK_TAB, 0));
textArea.setFocusTraversalKeys(
KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
forwardTraversalKeys);
Set backwardTraversalKeys = new HashSet();
backwardTraversalKeys.add(KeyStroke.getKeyStroke(KeyEvent.VK_TAB,
InputEvent.SHIFT_MASK));
textArea.setFocusTraversalKeys(
KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
backwardTraversalKeys);
scrollPane.getVerticalScrollBar().setFocusable(false);
scrollPane.getVerticalScrollBar().setFocusable(false);
editorComponent = scrollPane;
delegate = new DefaultCellEditor.EditorDelegate() {
public void setValue(Object value) {
textArea.setText((value != null) ? value.toString() : "");
public Object getCellEditorValue() {
return textArea.getText();
public void lostFocus() {
stopCellEditing();
} -
JSpinner in JTable: commit edit
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I have a JSpinner in a JTable, with corresponding renderer and editor.
All works good, but now I want that when the user changes the value of the spinner this change is immediately committed (and not only when the user goes to another cell in the table)
Any suggestions? Thx a lotTo get better help sooner, post a SSCCE that clearly demonstrates your problem.
Use code tags to post codes -- [code]CODE[/code] will display asCODEOr click the CODE button and paste your code between the {code} tags that appear.
db -
Multiple JButtons inside JTable cell - Dispatch mouse clicks
Hi.
I know this subject has already some discussions on the forum, but I can't seem to find anything that solves my problem.
In my application, every JTable cell is a JPanel, that using a GridLayout, places vertically several JPanel's witch using an Overlay layout contains a JLabel and a JButton.
As you can see, its a fairly complex cell...
Unfortunately, because I use several JButtons in several locations inside a JTable cell, sometimes I can't get the mouse clicks to make through.
This is my Table custom renderer:
public class TimeTableRenderer implements TableCellRenderer {
Border unselectedBorder = null;
Border selectedBorder = null;
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected,
boolean hasFocus, int row, int column) {
if (value instanceof BlocoGrid) {
if (isSelected) {
if (selectedBorder == null)
selectedBorder = BorderFactory.createMatteBorder(2,2,2,2, table.getSelectionBackground());
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unselectedBorder = BorderFactory.createMatteBorder(2,2,2,2, table.getBackground());
((BlocoGrid) value).setBorder(unselectedBorder);
return (Component) value;
}and this is my custom editor (so clicks can get passed on):
public class TimeTableEditor extends AbstractCellEditor implements TableCellEditor {
private TimeTableRenderer render = null;
public TimeTableEditor() {
render = new TimeTableRenderer();
public Component getTableCellEditorComponent(JTable table, Object value,
boolean isSelected, int row, int column) {
if (value instanceof BlocoGrid) {
if (((BlocoGrid) value).barras.size() > 0) {
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return null;
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return null;
}As you can see, both the renderer and editor return the same component that cames from the JTable model (all table values (components) only get instantiated once, so the same component is passed on to the renderer and editor).
Is this the most correct way to get clicks to the cell component?
Please check the screenshot below to see how the JButtons get placed inside the cell:
http://img141.imageshack.us/my.php?image=calendarxo9.jpg
If you need more info, please say so.
Thanks.My mistake... It worked fine. The cell span code was malfunctioning. Thanks anyway.
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hi,
I am really stick trying to figure out how to set two cells inside a JTable cell. This needs to be done because if there is a value already inside the cell then i want to drop another value - this new value should be displayed inside another cell but along with the other value already in the cell.
I assume that i would need to create two JTextFields.
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See tutorials. -
Hello. I'm trying to see if it's at all possible to have a JTable inside a JTable cell. I tried modifying those 'JButton inside JCell' examples, to no avail - it seems I didn't actually grasp the idea.
so anyway - did anyone ever do that? have a table inside a table? anyone can point me in the right direction?
thanks.Hello. I'm trying to see if it's at all possible to
have a JTable inside a JTable cell. I tried modifying
those 'JButton inside JCell' examples, to no avail -
it seems I didn't actually grasp the idea.It is possible, but I think it would make things confusing for the user. What exactly are you wanting to display?
>
so anyway - did anyone ever do that? have a table
inside a table? anyone can point me in the right
direction?You need a custom renderer and custom editor and most likely custom TableModels for each table. There are row height issues as well, especially if the rows/columns of the inner tables are variable. The getValueAt() method will require some thought. What is the value associated with all the cells in the inner table?
All in all, this is doable, but may not be desirable.
>
thanks. -
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I am able to put a JProgressBar inside a JTable cell, via a custom renderer to do so, however, I am unable to make the progress bar show the indeterminate animation. Any ideas? I calledbar.setIndeterminate( true ); and it doesn't seem to want to show. Is the JTable preventing it?
(should I include more of my code?)Your JProgressBar is used to render the table cell only when that cell of the JTable needs to be rendered and the JProgressBar has no say in this.
I don't know why you would want to do this but to do this I would set up timer that fired a tree model event to say that the content of the cell had changed. This would trigger the cell to be re-painted. I think, but I can't be sure, that you will not be able to use
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Hello, im trying to put textfield in a cell of Jtable but appears the following text inside of JTextField that i've inserted...
javax.swing.JTextField[,0,0,0x0,invalid,disabled,layout=javax.swing.plaf.basic.Basic
TextUI$UpdateHandler,alignmentX=0.0,alignmentY=0.0,border=javax.swing.plaf.Border
UIResource$CompoundBorderUIResource@196c1b0,flags=296,maximumSize=,minimumSize
=,preferredSize=,caretColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],disabled
TextColor=javax.swing.plaf.ColorUIResource[r=184,g=207,b=229],editable=true,margin=
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sun.swing.PrintColorUIResource[r=51,g=51,b=51],selectionColor=javax.swing.plaf.Color
UIResource[r=184,g=207,b=229],columns=0,columnWidth=0,command=,horizontal
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this is the source code :
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int row = JTable.getRowCount() - 1;
JTextField[] newrow = CreateRow();
this.DefaultTableModel.addRow(newrow);
private JTextField[] CreateRow()
JTextField[] newrow = {this.JTextField0, this.JTextField1, this.JTextField2, this.JTextField3, this.JTextField4, this.JTextField5, this.JTextField6};
return newrow;
PLEASE I NEED HELP...
Message was edited by:
negreratripple posting: http://forum.java.sun.com/thread.jspa?threadID=5120228
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