Creating custom cell factories

I can't quite figure out how to create a cell factory properly. In short, this is what I'm doing (for a Boolean column):
        existsInCustTable.setCellFactory(new Callback<TableColumn<Actor, Boolean>, TableCell<Actor, Boolean>>() {
            public TableCell<Actor, Boolean> call(TableColumn<Actor, Boolean> p) {
                return new TableCell<Actor, Boolean>() {
                    @Override
                    public void updateItem(Boolean item, boolean empty) {
                        super.updateItem(item, empty);
                        System.out.println(item + ", " + empty);
                        if (item != null) setText(item.toString());
        });This should (from my understanding) just recreate the default implementation, but it doesn't: I get all blank fields even though there are data in the table, and it prints "null, true" for all items.
What am I doing wrong?

Well - I can't see all your code - but did you set the CellValueFactory? This is the beast that actualy propagates a "value" from your TableView model, when updated, to the updateItem method call....
something like
existsInCustTable.setCellValueFactory(
                new PropertyValueFactory<Actor, Boolean>("MyBooleanPropertyName"));If this isn't it - please post all your code

Similar Messages

  • JTable: Custom cell renderer on T(row, col)

    Sorry if this was posted before, but the whole Search function doesn't seem to work these days (hasn't been working for a week now). Anyways:
    I know how to create custom cell renderers. My problem lies with which cells I want to apply that cell renderer to. It seems I am limited in setting a cell renderer to a whole column, which I don't want.
    For instance, I'd like to apply cell renderer R1 to (0,0) but not to (1,0) and not to (3,0). Instead I want cell renderer R2 on (2,0) and (3,0).
    Example of my table:
    |--icon--|--filename--|--extension--|
    |   R1   |  file1.txt |     txt     |
    |   R2   |  img1.jpg  |     jpg     |
    |   R1   |  file2.txt |     txt     |
    |   R2   |  img2.jpg  |     jpg     |
    |-----------------------------------|Is there any possibility this can be achieved? I am probably overlooking some method or class, but I don't know which. Some pointers or clues in the right directions are appreciated.
    Thanks

    Camickr, again you've been a great help. Works great, but a NullPointerException is being thrown and I can't find out what points to a null object.
    Code is this:
        public TableCellRenderer getCellRenderer(int row, int column) {
            if (getValueAt(row, 3).equals("jpg") && column == 0) {
                return new IconCellRenderer(Klue.iconAdd);
            } else {
                return super.getCellRenderer(row, column);
        }Solution is catching the NullPointerException in this method, but I'd rather have an if statement checking for it. But what to check? Any ideas?

  • Event Handling in JTable Custom Cell Renderer

    I have a JLabel as a custom cell Renderer for a column. I want to handle mouse click event for the JLabel rendered in the cell.
    I tried adding the listener for the label in the custom cell renderer but it is not working. Any ideas how to handle this problem??
    Thanks
    S.Anand

    If you want to handle the selection of a tree node
    1) write a class like:
    public class TreePaneListener implements TreeSelectionListener {
    // TREE SELECTION LISTENER
    public void valueChanged(TreeSelectionEvent e) {
    JTree tree = (JTree)e.getSource();
    DefaultMutableTreeNode node = null;
    int count = 0;
    boolean doSomething = false;
    if(tree.getSelectionCount() > 1) {
         TreePath[] selection = tree.getSelectionPaths();
         int[] temp = new int[selection.length];
         for(int i =0; i < selection.length; i++) {
    // Check each node for selection
         node = (DefaultMutableTreeNode)selection.getLastPathComponent();
         if(node.getLevel()==2) {
    // Change this code to take the action desired
         doSomething = true;
    2) After creating the tree register the listener
    TreePaneListener handler = new TreePaneListener();
    tree.addTreeSelectionListener(handler);

  • To create custom colors for exception

    Hi experts......
    I need to create custom colors for my report in order to set exceptions. Shades of red,yellow and green is just not enough for my client, they want to see blue as well when certain exception rises. Can someone please give me a hint as to how to implement that ...is it got to do st with the mime repository?
    Thnaks in advance!
    Tina

    Hi Tina,
    You can do this by formatting in the workbook. Run the query and in the workbook, on the BEx toolbar, there is a button for formatting. Select the exception cell whose color you want to change > in the Format button choos epatterns and select the color you would like. Once you have made the changes, save the workbook. The changes will remain in place the next time the user runs this workbook.
    Take a look at this link for more info:
    http://help.sap.com/saphelp_nw04/helpdata/en/f1/0a559ee09411d2acb90000e829fbfe/content.htm
    Hope this helps...

  • Tableview custom cell problem

    Hi everyone.
    I created a iOS tabbed application using xcode 4.2 and storyboard. I added one tableviewcontroller with custom cell on it, when clicking the row, I want to open one tableviewcontroller, i used the following code below
    - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
        categoryClass *cc = [datas objectAtIndex:indexPath.row];
        [tableView deselectRowAtIndexPath:indexPath animated:NO];
        iSubProducts *subProducts = [[iSubProducts alloc] init];
        subProducts.title = cc.categoryName;
        subProducts.catID = cc.categoryID;
        [[self navigationController] pushViewController:subProducts animated:YES];
        [subProducts release];
    but when I click the row it gives me the following error:
    *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'UITableView dataSource must return a cell from tableView:cellForRowAtIndexPath
    on my iSubProducts tableviewcontroller, i have the following:
    - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
        static NSString *CellIdentifier = @"myCell2";
        iSubProductsCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
        productSubClass *cc = [datas2 objectAtIndex:indexPath.row];
        NSLog(@"Product Name: %@", cc.productName);
        cell.txtProductName.text  = cc.productName;
        cell.txtProductDesc.text = cc.productDesc;
        return cell;
    I assume this is where the error occurs, the cell is returning a nil value. When I try to attach the iSubProducts tableviewcontroller using or from a button, it all works fine, but if its coming from row clicked, this error shows up.
    Im quite new with iOS development, and maybe there is a error opening tableviewcontroller from a tableviewcontroller with a custom cell on it. I've been bangin my head for 2 days now and googled a lot, unfortunately I didn't find any solution. I'm pretty sure there's no error on the iSubProducts tableviewcontroller since its working if i tried pushing it from a button. Please I need advice on this one, Im so stucked right now with this issue. Thank you everyone.

    Hi,
    you need to create a tableViewCell in case the dequeueReusableCell-call doesn't return one.
    - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
        static NSString *CellIdentifier = @"myCell2";
        iSubProductsCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
        if (cell == nil)
            cell = (iSubProductCell *)[[UITableViewCell alloc] init....
        productSubClass *cc = [datas2 objectAtIndex:indexPath.row];
        NSLog(@"Product Name: %@", cc.productName);
        cell.txtProductName.text  = cc.productName;
        cell.txtProductDesc.text = cc.productDesc;
        return cell;
    Dirk

  • Row Selection problem in custom cell renderer

    Hi,
    I have created a custom cell renderer to set color in my table based on some value and the screen also shows colors when i set this cell renderer.
    But, I am not able to see the row selection ie. with blue background when I select any row in the table is nor appearing. Can you tell me how to solve this problem.
    Regards,
    R.Vishnu Varadhan.

    Check out this [url http://forum.java.sun.com/thread.jsp?forum=57&thread=507001]thread for a similiar example.

  • Problem with creating customized report layout

    Hello,
    I want to create customized report layout. However, it doesn't work. Can somebody help me?
    I have a page 24 in apex.oracle.com(workspace: houbcm, username: apex, password: apex1). Here is the code in my .xslt.
    <?xml version="1.0"?>
    <fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">
    <fo:layout-master-set>
    <fo:simple-page-master master-name="content"
    page-width="210mm" page-height="297mm">
    <fo:region-body/>
    </fo:simple-page-master>
    </fo:layout-master-set>
    <fo:page-sequence master-reference="content">
    <fo:flow flow-name="xsl-region-body">
    <fo:table table-layout="fixed" width="100%">
    <fo:table-body>
    <fo:table-row >
    <fo:table-cell> <fo:block text-align='right' > <fo:inline> Product Name: </fo:inline> </fo:block> </fo:table-cell>
    <fo:table-cell> <fo:block text-align='left' > <fo:inline> <xsl:value-of select='.//PRODUCT_NAME' /> </fo:inline> </fo:block> </fo:table-cell>
    </fo:table-row>
    <fo:table-row >
    <fo:table-cell> <fo:block text-align='right' > <fo:inline> Description: </fo:inline> </fo:block> </fo:table-cell>
    <fo:table-cell> <fo:block text-align='left' > <fo:inline> <xsl:value-of select='.//PRODUCT_DESCRIPTION' /> </fo:inline> </fo:block> </fo:table-cell>
    </fo:table-row>
    <fo:table-row >
    <fo:table-cell> <fo:block text-align='right' > <fo:inline> Category: </fo:inline> </fo:block> </fo:table-cell>
    <fo:table-cell> <fo:block text-align='left' > <fo:inline> <xsl:value-of select='.//CATEGORY' /> </fo:inline> </fo:block> </fo:table-cell>
    </fo:table-row>
    <fo:table-row >
    <fo:table-cell> <fo:block text-align='right' > <fo:inline> Availability: </fo:inline> </fo:block> </fo:table-cell>
    <fo:table-cell> <fo:block text-align='left' > <fo:inline> <xsl:value-of select='.//PRODUCT_AVAIL' /> </fo:inline> </fo:block> </fo:table-cell>
    </fo:table-row>
    <fo:table-row>
    <fo:table-cell> <fo:block text-align='right' > <fo:inline> List Price: </fo:inline> </fo:block> </fo:table-cell>
    <fo:table-cell> <fo:block text-align='left' > <fo:inline> <xsl:value-of select='.//LIST_PRICE' /> </fo:inline> </fo:block> </fo:table-cell>
    </fo:table-row>
    </fo:table-body>
    </fo:table>
    </fo:flow>
    </fo:page-sequence>
    </fo:root>
    Thanks,
    Jen

    Hi,
    Thanks for the reply. I have created following report definition.
    SELECT Call_Type.EnterpriseName, Call_Type.Description AS DNIS, Call_Type_Interval.CallTypeID,
    SUM(Call_Type_Interval.ServiceLevelCallsOffered) AS CallsOffered,
    SUM(Call_Type_Interval.CallsAnswered) AS CallsAnswered,
    SUM(Call_Type_Interval.TotalCallsAband) AS TotalCallsAband,
    SUM(Call_Type_Interval.ServiceLevelAband) AS ServiceLevelAband,
    SUM(Call_Type_Interval.ShortCalls) AS ShortCalls,
    SUM(Call_Type_Interval.CallDelayAbandTime) AS CallDelayAbandTime,
    SUM(Call_Type_Interval.AnswerWaitTime) AS AnswerWaitTime,
    SUM(Call_Type_Interval.AnsInterval1) AS AnsInterval1,
    SUM(Call_Type_Interval.AnsInterval2) AS AnsInterval2,
    SUM(Call_Type_Interval.AnsInterval3) AS AnsInterval3,
    SUM(Call_Type_Interval.AnsInterval4) AS AnsInterval4,
    SUM(Call_Type_Interval.AnsInterval5) AS AnsInterval5,
    SUM(Call_Type_Interval.AnsInterval6) AS AnsInterval6,
    SUM(Call_Type_Interval.AnsInterval7) AS AnsInterval7,
    SUM(Call_Type_Interval.AnsInterval8) AS AnsInterval8,
    SUM(Call_Type_Interval.AnsInterval9) AS AnsInterval9,
    SUM(Call_Type_Interval.AnsInterval10) AS AnsInterval10
    FROM        
    Call_Type (nolock),
    Call_Type_Interval (nolock)
    WHERE Call_Type.CallTypeID = Call_Type_Interval.CallTypeID
    AND Call_Type.CallTypeID in (:calltype_list)
    AND Call_Type_Interval.DateTime >= :start_date
    AND Call_Type_Interval.DateTime <= :end_date
    GROUP BY Call_Type.EnterpriseName,
    Call_Type.Description,
    Call_Type_Interval.CallTypeID
    For this definition i wanted to create a customized report which is apparently not possible.

  • Inconsistent behavior with Custom Cell Renderer

    I have two questions:
    Questions # 1.
    I have created a custom cell renderer for my JTable that changes color if the text property changes and the text contains the letter 'S'. Like
    so:
    class SchedRenderer extends DefaultTableCellRenderer{
    public SchedRenderer(){
    super();
    final Color c = scSelfCont.panelbg;
    this.setForeground(c);
    this.addPropertyChangeListener("text",new PropertyChangeListener(){
    public void propertyChange(PropertyChangeEvent e){
         boolean foundS=false;
         String text=e.getNewValue().toString();
         for(int i=0;i<text.length();i++)
         if(text.charAt(i)=='S'){
         foundS=true;
         break;
         if(foundS){
         SchedRenderer.this.setBackground(Color.red);
         SchedRenderer.this.setForeground(Color.red);
         else{
         SchedRenderer.this.setBackground(c);
         SchedRenderer.this.setForeground(c);
    99% of the time it works just fine. But occasionally the cell will revert back to its original color, and then back to the correct color after clicking somewhere entirely different. I set some breakpoints in the property change handler and it gets called quite frquently even if no change has been made. At first I thought this was a JDK bug, but I am now convinced that there simply must be a better way to do this, any ideas?
    Question # 2:
    Is there a simple way to change the color of an entire row without selecting it? Currently I am using Custom Cell Renderers to change
    colors of cells, but it seems like such an obtuse method. Is there a better way?
    Thanks in advance.
    Adrian Calvin

    I have two questions:
    Questions # 1.
    I have created a custom cell renderer for my JTable that changes color if the text property changes and the text contains the letter 'S'. Like
    so:
    class SchedRenderer extends DefaultTableCellRenderer{
      public SchedRenderer(){
        super();
        final Color c = scSelfCont.panelbg;
        this.setForeground(c);
        this.addPropertyChangeListener("text",new PropertyChangeListener(){
           public void propertyChange(PropertyChangeEvent e){
         boolean foundS=false;
         String text=e.getNewValue().toString();
         for(int i=0;i<text.length();i++)
           if(text.charAt(i)=='S'){
             foundS=true;
             break;
         if(foundS){
           SchedRenderer.this.setBackground(Color.red);
           SchedRenderer.this.setForeground(Color.red);
         else{
           SchedRenderer.this.setBackground(c);
             SchedRenderer.this.setForeground(c);
    [\code]
    99% of the time it works just fine.  But occasionally the cell will revert back to its original color, and then back to the correct color after clicking somewhere entirely different.  I set some breakpoints in the property change handler and it gets called quite frquently even if no change has been made.  At first I thought this was a JDK bug, but I am now convinced that there simply must be a better way to do this, any ideas? 
    Question # 2:
    Is there a simple way to change the color of an entire row without selecting it?  Currently I am using Custom Cell Renderers to change
    colors of cells, but it seems like such an obtuse method.  Is there a better way?
    Thanks in advance.
    Adrian Calvin

  • JTable custom cell editor focus problem

    Hi I have created a JTable (using Java 1.4.2) and have three cell Editors, one is a JFormattedTextField, one is a JComboBox and one is a custom cell editor.
    When I press tab I can select the cell with the JFormattedTextField and when I start typing the JFormattedTextField accepts my input and it is displayed in the cell. This is the type of behaviour I would like but it does not seem to work for my other 2 cell editors:
    When I tab to the JComboBox cell I can see that the cell is selected but typing or using the arrow keys does not allow me to select a new value in the JComboBox. (I have also tried typing space or enter to activate the JComboBox whilst the cell is selected.) The only ways to select a new value at the moment is to first click on the cell with the mouse and then use the keyboard to select a new value. It is like the actual JComboBox is not receiving the focus? Does anyone know how to solve this problem?
    I also seem to have the same problem with my custom cell editor. My custom editor is a JPanel which contains JFormattedTextField again I can tab to the cell and see that it is selected but to activate the JFormattedTextField I have to actually select it with the mouse.
    I have been stuck on this for some time so if any one has any suggestions they would be much appreciated !

    Hi I have created a JTable (using Java 1.4.2) and have three cell Editors, one is a JFormattedTextField, one is a JComboBox and one is a custom cell editor.
    When I press tab I can select the cell with the JFormattedTextField and when I start typing the JFormattedTextField accepts my input and it is displayed in the cell. This is the type of behaviour I would like but it does not seem to work for my other 2 cell editors:
    When I tab to the JComboBox cell I can see that the cell is selected but typing or using the arrow keys does not allow me to select a new value in the JComboBox. (I have also tried typing space or enter to activate the JComboBox whilst the cell is selected.) The only ways to select a new value at the moment is to first click on the cell with the mouse and then use the keyboard to select a new value. It is like the actual JComboBox is not receiving the focus? Does anyone know how to solve this problem?
    I also seem to have the same problem with my custom cell editor. My custom editor is a JPanel which contains JFormattedTextField again I can tab to the cell and see that it is selected but to activate the JFormattedTextField I have to actually select it with the mouse.
    I have been stuck on this for some time so if any one has any suggestions they would be much appreciated !

  • JTable custom cell editor losing focus

    This is a followup to Re: Tutorial on AWT/Swing control flow wherein I ask for pointers to help me understand the source of focus-loss behaviour in my JTable's custom cell editor.
    I have done some more investigations and it turns out that the focus loss is a more general problem with custom cell editors which call other windows. Even the color-picker demo in the JTable tutorial at http://download.oracle.com/javase/tutorial/uiswing/examples/components/index.html#TableDialogEditDemo has this problem, IF you add a text field or two to the layout BEFORE the table. The only reason the table in the demo doesn't lose the focus when the color-picker comes out is because the table is the only thing in the window!
    Here is the demo code, augmented with two text fields, which are admittedly ugly here but which serve the desired purpose:
    * Copyright (c) 1995, 2008, Oracle and/or its affiliates. All rights reserved.
    * Redistribution and use in source and binary forms, with or without
    * modification, are permitted provided that the following conditions
    * are met:
    *   - Redistributions of source code must retain the above copyright
    *     notice, this list of conditions and the following disclaimer.
    *   - Redistributions in binary form must reproduce the above copyright
    *     notice, this list of conditions and the following disclaimer in the
    *     documentation and/or other materials provided with the distribution.
    *   - Neither the name of Oracle or the names of its
    *     contributors may be used to endorse or promote products derived
    *     from this software without specific prior written permission.
    * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
    * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
    * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
    * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
    * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
    * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
    * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
    * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
    * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
    * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
    * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    import javax.swing.*;
    import javax.swing.border.Border;
    import javax.swing.table.AbstractTableModel;
    import javax.swing.table.TableCellEditor;
    import javax.swing.table.TableCellRenderer;
    import java.awt.*;
    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;
    public class TableDialogEditDemo extends JPanel {
        public class ColorEditor extends AbstractCellEditor
                implements TableCellEditor,
                ActionListener {
            Color currentColor;
            JButton button;
            JColorChooser colorChooser;
            JDialog dialog;
            protected static final String EDIT = "edit";
            public ColorEditor() {
                //Set up the editor (from the table's point of view), which is a button.
                //This button brings up the color chooser dialog, which is the editor from the user's point of view.
                button = new JButton();
                button.setActionCommand(EDIT);
                button.addActionListener(this);
                button.setBorderPainted(false);
                //Set up the dialog that the button brings up.
                colorChooser = new JColorChooser();
                dialog = JColorChooser.createDialog(button, "Pick a Color", true,  //modal
                        colorChooser, this,  //OK button handler
                        null); //no CANCEL button handler
             * Handles events from the editor button and from the dialog's OK button.
            public void actionPerformed(ActionEvent e) {
                if (EDIT.equals(e.getActionCommand())) {
                    //The user has clicked the cell, so bring up the dialog.
                    button.setBackground(currentColor);
                    colorChooser.setColor(currentColor);
                    dialog.setVisible(true);
                    //Make the renderer reappear.
                    fireEditingStopped();
                } else { //User pressed dialog's "OK" button
                    currentColor = colorChooser.getColor();
            public Object getCellEditorValue() {
                return currentColor;
            public Component getTableCellEditorComponent(JTable table,
                                                         Object value,
                                                         boolean isSelected,
                                                         int row,
                                                         int column) {
                currentColor = (Color) value;
                return button;
        public class ColorRenderer extends JLabel
                implements TableCellRenderer {
            Border unselectedBorder = null;
            Border selectedBorder = null;
            boolean isBordered = true;
            public ColorRenderer(boolean isBordered) {
                this.isBordered = isBordered;
                setOpaque(true);
            public Component getTableCellRendererComponent(
                    JTable table, Object color,
                    boolean isSelected, boolean hasFocus,
                    int row, int column) {
                Color newColor = (Color) color;
                setBackground(newColor);
                if (isBordered) {
                    if (isSelected) {
                        if (selectedBorder == null) {
                            selectedBorder = BorderFactory.createMatteBorder(2, 5, 2, 5,
                                    table.getSelectionBackground());
                        setBorder(selectedBorder);
                    } else {
                        if (unselectedBorder == null) {
                            unselectedBorder = BorderFactory.createMatteBorder(2, 5, 2, 5,
                                    table.getBackground());
                        setBorder(unselectedBorder);
                return this;
        public TableDialogEditDemo() {
            super(new GridLayout());
            JTextField tf1 = new JTextField("tf1");
            add(tf1);
            JTextField tf2 = new JTextField("tf2");
            add(tf2);
            JTable table = new JTable(new MyTableModel());
            table.setPreferredScrollableViewportSize(new Dimension(500, 70));
            table.setFillsViewportHeight(true);
            JScrollPane scrollPane = new JScrollPane(table);
            table.setDefaultRenderer(Color.class,
                    new ColorRenderer(true));
            table.setDefaultEditor(Color.class,
                    new ColorEditor());
            add(scrollPane);
        class MyTableModel extends AbstractTableModel {
            private String[] columnNames = {"First Name",
                    "Favorite Color",
                    "Sport",
                    "# of Years",
                    "Vegetarian"};
            private Object[][] data = {
                    {"Mary", new Color(153, 0, 153),
                            "Snowboarding", new Integer(5), new Boolean(false)},
                    {"Alison", new Color(51, 51, 153),
                            "Rowing", new Integer(3), new Boolean(true)},
                    {"Kathy", new Color(51, 102, 51),
                            "Knitting", new Integer(2), new Boolean(false)},
                    {"Sharon", Color.red,
                            "Speed reading", new Integer(20), new Boolean(true)},
                    {"Philip", Color.pink,
                            "Pool", new Integer(10), new Boolean(false)}
            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 void setValueAt(Object value, int row, int col) {
                data[row][col] = value;
                fireTableCellUpdated(row, col);
        private static void createAndShowGUI() {
            JFrame frame = new JFrame("TableDialogEditDemo");
            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            JComponent newContentPane = new TableDialogEditDemo();
            newContentPane.setOpaque(true);
            frame.setContentPane(newContentPane);
            frame.pack();
            frame.setVisible(true);
        public static void main(String[] args) {
            javax.swing.SwingUtilities.invokeLater(new Runnable() {
                public void run() {
                    createAndShowGUI();
    }When you come back from choosing a color, tf1 is given the focus, instead of the table. This is because bringing the color picker window to the front causes a focus lost event for the cell editor component; it's temporary, as it should be, so why on earth is the system losing track of who has focus in the window??
    I see the following in Window#getMostRecentFocusOwner():
      public Component getMostRecentFocusOwner()
        if (isFocused())
          return getFocusOwner();
        else
          Component mostRecent =
            KeyboardFocusManager.getMostRecentFocusOwner(this);
          if (mostRecent != null)
            return mostRecent;
          else
            return (isFocusableWindow())
                   ? getFocusTraversalPolicy().getInitialComponent(this)
                   : null;
      }My app has a custom focus traversal policy, so I'm able to see who is being called, and indeed, getInitialComponent() is being called. Clearly, the KeyboardFocusManager is actually losing track of the fact that the table was focussed at the point where control was transferred to the color picker! This strikes me as completely unreasonable, especially since, as noted, this is a temporary focus loss event, not a permanent one.
    I'd be grateful for any wisdom in solving this, since similar behaviour to this little demo -- without focus loss, naturally -- is an essential part of my application.

    Looks like it is because the 'restore-focus-to-previous-after-modal-dialog-close' is in a later event than when the control returns to the action performed (which I guess makes sense: it continues the action event handler and the focus events are handled later, but I needed two chained invoke laters so it might also be that the OS events comes later).
    The following works for me (in the actionPerformed edited):
               // create the dialog here so it is correctly parented
               // (otherwise sometimes OK button not correctly the default button)
               dialog = JColorChooser.createDialog(button, "Pick a Color", true,  //modal
                            colorChooser, this,  //OK button handler
                            null); //no CANCEL button handler
                    //The user has clicked the cell, so bring up the dialog.
                    button.setBackground(currentColor);
                    colorChooser.setColor(currentColor);
                    button.addFocusListener(new FocusListener() {
                        @Override
                        public void focusLost(FocusEvent e) {}
                        @Override
                        public void focusGained(FocusEvent e) {
                            // dialog closed and focus restored
                            button.removeFocusListener(this);
                            fireEditingStopped();
                    dialog.setVisible(true);but a simpler request might be better (althoug I still need an invoke later):
    // rest as before except the FocusListener
                    dialog.setVisible(true);
                    button.requestFocusInWindow();
                    EventQueue.invokeLater(new Runnable() {
                        public void run() {
                            fireEditingStopped();
                    });And a quick fix to the renderer so you can actualy see the focus on it:
                    if(hasFocus) {
                        Border border = DefaultLookup.getBorder(this, ui, "Table.focusCellHighlightBorder");
                        setBorder(BorderFactory.createCompoundBorder(
                                border, BorderFactory.createMatteBorder(1, 4, 1, 4,
                                        ((MatteBorder) getBorder()).getMatteColor())));
                    }

  • Custom Cell Renderer / Video garbage on "refresh"

    I have created a custom Cell Renderer for my JTable. When the application in which this JTable is displayed, is moved into the background and then brought back "front", The application does not redraw itself completely.
    I am able to see the information contained in the JTable but none of the surrounding components. When I do a mouse click on any of the background of the surrounding panel, nothing happens.
    In order to get the entire Panel/View/all visible components to refresh themselves, I have to click on aother component (example would be switching to a different panel of the tabbed pane.)
    This only happens when I have a JTable with this particular Renderer showing. Any other panel or JTable not using this Renderer refreshes completely.
    Here is my Cell Renderer most of which I borrowed extensively from info posted in these forums:
    import java.util.*;
    import javax.swing.*;
    import javax.swing.table.*;
    import javax.swing.border.*;
    import java.awt.*;
    import java.io.*;
    * This is a much lighter version of the multiline renderer.  It does need to have newline
    * characters at the points where the next line should occur.
    public class CTAuditTableCellRenderer extends JList implements TableCellRenderer {
        public CTAuditTableCellRenderer() {
            setOpaque(true);
            ListCellRenderer renderer = getCellRenderer();
            ((JLabel)renderer).setHorizontalAlignment(JLabel.CENTER);
            setCellRenderer(renderer);
        *   getTableCellRendererComponent() is the only method that must be over-ridden.
        *   @param table the JTable holding cell we wish to render
        *   @param value the object which we wish to put into the cell
        *   @param isSelected boolean to allow selected cell to appear as such
        *   @param hasFocus boolean to alert as to the cell having focus
        *   @param row row of the JTable in which cell resides
        *   @param column column of the JTable in which the cell resides.
        *   @return Component the image of the value object.  Not a true object but an
        *   image of the object.
        public Component getTableCellRendererComponent(JTable table, Object value,
                                    boolean isSelected, boolean hasFocus, int row, int column) {
            if (isSelected) {
                setForeground(table.getSelectionForeground());
                setBackground(table.getSelectionBackground());
            } else {
                setForeground(table.getForeground());
                setBackground(table.getBackground());
            setFont(table.getFont());
            if (hasFocus) {
                setBorder( UIManager.getBorder("Table.focusCellHighlightBorder") );
                if (table.isCellEditable(row, column)) {
                    setForeground( UIManager.getColor("Table.focusCellForeground") );
                    setBackground( UIManager.getColor("Table.focusCellBackground") );
            } else {
                setBorder(new EmptyBorder(1, 2, 1, 2));
            String str = (value == null) ? "" : value.toString();
            BufferedReader br = new BufferedReader(new StringReader(str));
            String line;
            Vector v = new Vector();
            try {
                while ((line = br.readLine()) != null) {
                    v.addElement(line);
            } catch (IOException ex) { ex.printStackTrace(); }
            setListData(v);
            if(v.size() > 1){
                table.setRowHeight(row, (table.getRowHeight()+ 3)* v.size());
            return this;
    }Thank you in advance for your constructive, insightful, and applicable replies.
    Jerry

    Here is an entire example that shows the situation of the Frame (in this case) not updating/refreshing all of it's components when regaining focus.
    To simulate the problem, simply move "something"/another window over the sample frame and then move it off. In my case the scrollbar and the headers do not reappear until I have selected a row and scrolled the table.
    Here is the example code:
    import javax.swing.*;
    import javax.swing.table.*;
    import javax.swing.border.*;
    import java.util.*;
    import java.awt.*;
    import java.awt.event.*;
    public class MultiLineCellExample extends JFrame {
      MultiLineCellExample() {
        super( "Multi-Line Cell Example" );
        DefaultTableModel dm = new DefaultTableModel() {
          public Class getColumnClass(int columnIndex) {
            return String.class;
        dm.setDataVector(new Object[][]{{"aa aa aa aa aa\naa aa aa aa aa\naa aa aa aa aa","b","c"},
                                        {"A","B","C\nC"},{"x","y","z"}},
                         new Object[]{"1","2","3"});
        JTable table = new JTable( dm );
        table.setDefaultRenderer(String.class, new MultiLineCellRenderer());
        JScrollPane scroll = new JScrollPane( table );
        getContentPane().add( scroll );
        setSize( 400, 130 );
        setVisible(true);
      public static void main(String[] args) {
        MultiLineCellExample frame = new MultiLineCellExample();
        frame.addWindowListener( new WindowAdapter() {
          public void windowClosing( WindowEvent e ) {
            System.exit(0);
    }And here is the Renderer code:
    import java.util.*;
    import javax.swing.*;
    import javax.swing.table.*;
    import javax.swing.border.*;
    import java.awt.*;
    import java.io.*;
    public class MultiLineCellRenderer extends JList implements TableCellRenderer {
        public MultiLineCellRenderer() {
            setOpaque(true);
            ListCellRenderer renderer = getCellRenderer();
            ((JLabel)renderer).setHorizontalAlignment(JLabel.CENTER);
            setCellRenderer(renderer);
        public Component getTableCellRendererComponent(JTable table, Object value,
                                    boolean isSelected, boolean hasFocus, int row, int column) {
            if (isSelected) {
                setForeground(table.getSelectionForeground());
                setBackground(table.getSelectionBackground());
            } else {
                setForeground(table.getForeground());
                setBackground(table.getBackground());
            setFont(table.getFont());
            if (hasFocus) {
                setBorder( UIManager.getBorder("Table.focusCellHighlightBorder") );
                if (table.isCellEditable(row, column)) {
                    setForeground( UIManager.getColor("Table.focusCellForeground") );
                    setBackground( UIManager.getColor("Table.focusCellBackground") );
            } else {
                setBorder(new EmptyBorder(0, 0, 0, 0));
            String str = (value == null) ? "" : value.toString();
            BufferedReader br = new BufferedReader(new StringReader(str));
            String line;
            Vector v = new Vector();
            try {
                while ((line = br.readLine()) != null) {
                    v.addElement(line);
            } catch (IOException ex) { ex.printStackTrace(); }
            setListData(v);
            if(v.size() > 1){
                table.setRowHeight(row, (table.getRowHeight()+2)* v.size());
            return this;
    }Please, this is a very annoying problem and I would appreciate help in solving.
    Jerry

  • Custom cell rendering

    I have got a JList.
    And I am going to create my custom cell renderer which can show a label and a pic inline.
    How can I do it?

    Check out the tutorial at http://java.sun.com/docs/books/tutorial/uiswing/components/combobox.html#renderer

  • Problem with UITableViewCell, can´t add the same custom cell

    Hi,
    I have a table view which I populate the cells with a UITableView class that i wrote. This custom class has two labels and a image view. In the method cellForRowAtIndexPath, i use the following code:
    [cell addSubview:myTableViewCellClass];
    the first cell is ok, the cell displays my custom cell. But the second cell can´t display the same custom cell object. Is there something I can do to avoid this problem?
    I have another problem. When i scroll my table view very fast, the program crashes with the following message:
    [Session started at 2008-08-24 18:30:10 -0700.]
    Loading program into debugger…
    GNU gdb 6.3.50-20050815 (Apple version gdb-960) (Sun May 18 18:38:33 UTC 2008)
    Copyright 2004 Free Software Foundation, Inc.
    GDB is free software, covered by the GNU General Public License, and you are
    welcome to change it and/or distribute copies of it under certain conditions.
    Type "show copying" to see the conditions.
    There is absolutely no warranty for GDB. Type "show warranty" for details.
    This GDB was configured as "i386-apple-darwin".warning: Unable to read symbols >for
    "/System/Library/Frameworks/UIKit.framework/UIKit" (file not found).
    warning: Unable to read symbols from "UIKit" (not yet mapped into memory).
    warning: Unable to read symbols for "/System/Library/Frameworks>/CoreGraphics.framework/CoreGraphics" (file not
    found).
    warning: Unable to read symbols from "CoreGraphics" (not yet mapped into memory).
    Program loaded.
    sharedlibrary apply-load-rules all
    Attaching to program: `/Users/pitteri/Library/Application Support/iPhone
    Simulator/User/Applications/9F7BD517-CB1E-49C5-BD30-24831239120F/OndeEstou.app/O ndeEstou', process 11209.

    This is not the correct method for using custom table cells with a table. You need to create a custom cell class that extends UITableViewCell. This class should handle the layout and display for the content of a single cell.
    In your table view delegate's 'cellForRowAtIndexPath' method, you create or obtain an instance of your custom cell, configure the cell by setting the title or other properties appropriate for you custom cell, then return the cell. That's it.
    It appears, from your code, that you are trying to add the table view cell class to the cell. Maybe you mistyped. But don't call 'addSubview' on anything within the table view delegate.
    Have a look at the UICatalog example app. It has several custom table cells and shows both how to implement a custom cell, but also how to use it in a table.
    Enjoy.

  • Problem sorting JTable with custom cell editor

    Greetings,
    I have created a JTable with a JComboBox as the cell editor for the first column. However, I couldn't simply set the default cell editor for the column to be a JComboBox, since the values within the list were different for each row. So instead, I implemented a custom cell editor that is basically just a hashtable of cell editors that allows you to have a different editor for each row in the table (based on the ideas in the EachRowEditor I've seen in some FAQs - see the code below). I also used a custom table model that is essentially like the JDBCAdapter in the Java examples that populates the table with a query to a database.
    The problem comes when I try to sort the table using the TableSorter and TableMap classes recommended in the Java Tutorials on JTables. All of the static (uneditable) columns in the JTable sort fine, but the custom cell editor column doesn't sort at all. I think that the problem is that the hashtable storing the cell editors never gets re-ordered, but I can't see a simple way to do that (how to know the old row index verses the new row index after a sort). I think that I could implement this manually, if I knew the old/new indexes...
    Here's the code I use to create the JTable:
    // Create the Table Model
    modelCRM = new ContactTableModel();
    // Create the Table Sorter
    sorterCRM = new TableSorter(modelCRM);
    // Create the table
    tblCRM = new JTable(sorterCRM);
    // Add the event listener for the sorter
    sorterCRM.addMouseListenerToHeaderInTable(tblCRM);
    Then, I populate the column for the custom cell editor like this:
    // Add the combo box for editing company
    TableColumn matchColumn = getTable().getColumn("Match");
    RowCellEditor rowEditor = new RowCellEditor();
    // loop through and build the combobox for each row
    for (int i = 0; i < getTable().getRowCount(); i++) {
    JComboBox cb = new JComboBox();
    cb.addItem("New");
    //... code to populate the combo box (removed for clarity)
    rowEditor.add(i,new DefaultCellEditor(cb, i))); //TF
    } // end for
    matchColumn.setCellEditor(rowEditor);
    Any ideas how to do this, or is there a better way to either sort the JTable or use a combobox with different values for each row? Please let me know if more code would help make this clearer...
    Thanks,
    Ted
    import java.util.*;
    import java.awt.*;
    import javax.swing.*;
    import javax.swing.table.*;
    import javax.swing.event.*;
    public class RowCellEditor implements TableCellEditor
    protected Hashtable editors;
    protected TableCellEditor editor, defaultEditor;
    public RowCellEditor()
    editors = new Hashtable();
    defaultEditor = new DefaultCellEditor(new JTextField());
    public void add(int row, TableCellEditor editor)
    editors.put(new Integer(row), editor);
    public Component getTableCellEditorComponent(JTable table,
    Object value,
    boolean isSelected,
    int row,
    int column)
    editor = (TableCellEditor) editors.get(new Integer(row));
    if (editor == null)
    editor = defaultEditor;
    return editor.getTableCellEditorComponent(table,
    value,
    isSelected,
    row,
    column);
    public Object getCellEditorValue() {
    return editor.getCellEditorValue();
    public boolean stopCellEditing() {
    return editor.stopCellEditing();
    public void cancelCellEditing() {
    editor.cancelCellEditing();
    public boolean isCellEditable(EventObject anEvent) {
    return true; //TF
    //return editor.isCellEditable(anEvent);
    public void addCellEditorListener(CellEditorListener l) {
    editor.addCellEditorListener(l);
    public void removeCellEditorListener(CellEditorListener l) {
    editor.removeCellEditorListener(l);
    public boolean shouldSelectCell(EventObject anEvent) {
    return editor.shouldSelectCell(anEvent);
    -------------------

    Well, I found a solution in another post
    (see http://forum.java.sun.com/thread.jsp?forum=57&thread=175984&message=953833#955064 for more details).
    Basically, I use the table sorter to translate the row index for the hashtable of my custom cell editors. I did this by adding this method to the sorter:
    // This method is used to get the correct row for the custom cell
    // editor (after the table has been sorted)
    public int translateRow(int sortedRowIndex)
    checkModel();
    return indexes[sortedRowIndex];
    } // end translateRow()
    Then, when I create the custom cell editor, I pass in a reference to the sorter so that when the getTableCellEditorComponent() method is called I can translate the row to the newly sorted row before returning the editor from the hashtable.

  • JTable - help with custom cell renderers and editors

    I've got myself into a bit of a mess with cell renderers and editors.
    I've got a custom component that wants displaying in a column and then hand over all functionality to this component when you start editing it.
    Now how I went out about this was to create a custom cell renderer that extends this component and implements TableCellRenderer.
    I then created a table cell editor that extends AbstractCellEditor and implements TableCellEditor and this cell editor creates a new component when it's initialized. I then use setCellEditor(new MyCellEditor()) on the column and setCellRenderer(new MyCellRenderer()).
    This works slightly but I'm wondering how this is all implemented.
    When I set the cell editor on it's own it seems to be sharing a reference to the single component that's being used which means that if you edit one cell all the cells get changed to the new value.
    Thanks for the help,
    Alex

    only a few forums are actually browsedAnd theSwing forum is one of the most active. Did you search it for editiing examples? I've seen many editing examples posted in a SSCCE format.
    SSCEE is also impossible as the functionality spans over about 10 classes We did not ask for your application, we asked for a SSCCE. The whole point of a SSCCE is to simplify the 10 classes into a single class and maybe an inner class for the editor to make sure you haven't made a silly mistake that is hidden because of the complexity of your real application.

Maybe you are looking for

  • NiScope_InitiateAcquisition error for a second 5132 USB scope

    I have 2 NI5132 USB digitizers.  Either one alone works fine.  But if I plug both into the USB bus, then the last one connected produces the error message "Error BFFA666A   NI Platform Services: No transfer is in progress because the transfer was abo

  • ViewStack programmatically changing selected item

    Hi Guys or Ladies New to flex and here is my scenario: Using a ViewStack that has multipule custom componentes (forms) in it. I have a diffrent navigation control that when clicked should preform two simple tasks. 1. Change the viewstack selected ite

  • Filters for posts

    Hi all, I'm a regular visitor of the Abap forum and I'm wondering if it would be possible to add some filters on the "standard overview". For instance: the number of posts (moreover replies) in the Abap forum is so large that posts without any reply

  • Fonts didn't install

    I reinstalled InDesign4 on a new computer and some of the fonts I had with the same program on my old machine didn't appear. They came stock with the install before but now they are shown as missing in documents I created on my former, now defunt com

  • Powerbook G4 thru Pioneer car radio

    I am trying to hook my G4 thru my car(2004Scion XB) stereo (Pioneer T1201) so I can listen to iTunes radio via my car radio(with my Verizon Wireless card) as well as the 2007 Garmin GPS 18 system($200) which I will hook up to my laptop via a USB cabl