Making table cells non-focusable

I have a JTable in which some of the cells should never receive the keyboard focus. I want the TAB key to skip over these non-editable cells, but I'm having trouble. I've tried using a cell renderer where getTableCellRendererComponent calls setFocusable(false). This has no effect at all. How can I get the focus to skip forward to the next editable cell when I press the TAB key?

some of the cells should never receive the keyboard focus
I want the TAB key to skip over these non-editable cellsThese a two separate and different requirements. Using the Tab key does not prevent the user from clicking on the cell. But if this is the real requirement then check out this posting for one solution:
http://forum.java.sun.com/thread.jspa?forumID=57&threadID=657819

Similar Messages

How to make a cell or column in JTable non focusable.

I have created a table which contains 2 rows and 2 columns. My requirement is that 2nd column should be non editable and non focusable. Making any cell non editable is very easy but how should i avoid focus on particular cell.i.e., suppose focus is on first cell and now if u press right arrow button on the keyboard 2nd cell should not get highlighted and focus should remain on first cell.
Thanks in advance

Override the default Tab Action. Here is an example:
http://forum.java.sun.com/thread.jspa?forumID=57&threadID=657819

Catching a table cell focused event

I have a JTable that I want users to input data into. One of the columns is a date field. In order to make sure the date is formatted and entered correctly, I've used a custom cell editor and renderer so the column looks like a DateTextField(a custom date field class). It works fine when the user clicks on the cell. But if the user hits the down arrow it doesn't set off the event that allows it to be edited as a DateTextField. Can you capture somekind of focus event on a particular cell and when you get a focus gained, programatically send the event that allows the cell to be edited? In case that didn't make sense, I'm trying to programatically simulate a mouse click on a table cell when it gets focus. Can it be done? If so, how? Thanks.

Yes, I've tried that. The problem is what some people have described as a bug. There are two editing methods for JTable cells. One happens if the cell gets focus. There is no cursor and any underlying components are ignored. The second(the REAL edit) is when there is a cursor and the JTable understands that the cell is really a DateTextField. The only way I've found to achieve this is click on the cell. The number of clicks it takes depends on what the clickCountToStart is set to. However, if it's set to zero, it still takes one click.

Making a Table cell editable. Please Help

Hello there,
I have written an Inner class called CallHeaderRenderer
which is used to select to highlight a row from a table.
But i am unable to edit the column data I click on.
Please can any one tell me how to edit the column value when you double click on it??
Attached is my Inner class used to select the concerned row.
I am unable to edit the concerned column.....
Please help.!!!
What is the statement to make the cell editable!!!
class CallHeaderRenderer extends DefaultTableCellRenderer{
public CallHeaderRenderer(){
super();
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column){
// Set the highlight for record chosen.
super.getTableCellRendererComponent(table,value,isSelected,hasFocus,row,column);
return this;
}

A renderer has nothing to do with editing the cell. I suggest you read this section from the Swing tutorial on "Using Tables" for an explanation of how tables work. The tutorial will give one method for making a cell editable:
http://java.sun.com/docs/books/tutorial/uiswing/components/table.html
Here is an alternate way to make a cell editable:
table = new JTable( ... )
    public boolean isCellEditable(int row, int column)
        // All columns, except the first, are editable
        if (column == 0)
            return false;
        else
            return true;
};

Help: Jbo Exception non blocking when using table cell renderer?

Hi,
JClient 9.5.2.
When using Table Cell Renderer on an table cell attribute that is defined mandatory and activating the insert button, the (oracle.jbo.AttrValException) JBO-27014 exception is caught but it is not blocking and a new row is still inserted.
The JClient component demo, table attribute list, has the same behaviour.
You can add multiple rows even if not all required attributes have been documented.
Can a Swing specialist help me on this one?
Example of Table Cell Renderer:
public class TableBasicStatusRenderer extends DefaultTableCellRenderer
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus,
int row, int column)
JLabel lb = new JLabel((String) StaticData.getStatusName(value)); // retrieves label from Map
return lb;
Regards
Frederic

Hi,
I found something interesting, it could be a WORKAROUND!
I noticed that in another detail panel with table layout the JBO exception was blocking and adding another row before completing the row was NOT possible.
In the create method of the entity object of the displayed View Object I iterate over the detail row iterator to retrieve a maximum value.
By the end of the method the pointer is positionned after the last row.
So I added to the detail panel that doesn't block following code:
In create method of detail Entity Object Impl (only one entity object involved for this View)
// Retrieve master EntityObjectImpl from association:
PostalTariffImpl postalTariffImpl = getPostalTariffAssoc();
// Retrieve detail default row iterator
RowIterator ri = postalTariffImpl.getPostalDetailGroupAssoc();
// Position pointer after last row
ri.last();
ri.next();
Question: Why does this solve the problem?
Regards
Frederic
PS Les mysteres de l'informatique!

Buttons in ALV Grid cell need focus to be clicked :-(

Hi,
I have an ALV Grid with single cells displayed as buttons (dependend on the data in the corresponding row). Unfortunatelly the button-cells need focus to be clicked. So you need two clicks: one to get the focus to the desired cell and one to really click the button.
Any ideas how to make this work with one single click ? (Setting a hotspot does not work, cause hotspots have the same problem.)
Regards,
Tobi

Hello Tobias
The proposal by Naimesh is valid for CL_GUI_ALV_GRID, too. You may have a look at sample report ZUS_SDN_ALVGRID_EVENTS_HOTSPOT. Put the focus on any non-button cell and next click on any customer button.
*& Report ZUS_SDN_ALVGRID_EVENTS_HOTSPOT
*& Thread: Buttons in ALV Grid cell need focus to be clicked :-(
*& <a class="jive_macro jive_macro_thread" href="" __jive_macro_name="thread" modifiedtitle="true" __default_attr="1009251"></a>
REPORT zus_sdn_alvgrid_events_hotspot.
DATA:
gd_okcode        TYPE ui_func,
gt_fcat          TYPE lvc_t_fcat,
go_docking       TYPE REF TO cl_gui_docking_container,
go_grid1         TYPE REF TO cl_gui_alv_grid.
DATA:
go_table              TYPE REF TO cl_salv_table,
go_grid_adapter       TYPE REF TO cl_salv_grid_adapter.
DATA:
gt_knb1          TYPE STANDARD TABLE OF knb1.
PARAMETERS:
p_bukrs      TYPE bukrs DEFAULT '2000' OBLIGATORY.
*       CLASS lcl_eventhandler DEFINITION
CLASS lcl_eventhandler DEFINITION.
PUBLIC SECTION.
    CLASS-METHODS:
      handle_hotspot_click FOR EVENT hotspot_click OF cl_gui_alv_grid
        IMPORTING
          e_row_id
          e_column_id
          es_row_no
          sender, " grid instance that raised the event
      handle_button_click FOR EVENT button_click OF cl_gui_alv_grid
        IMPORTING
          es_col_id
          es_row_no
          sender.
ENDCLASS.                    "lcl_eventhandler DEFINITION
*       CLASS lcl_eventhandler IMPLEMENTATION
CLASS lcl_eventhandler IMPLEMENTATION.
METHOD handle_hotspot_click.
*   define local data
    DATA:
      ls_knb1     TYPE knb1,
      ls_col_id   TYPE lvc_s_col.
    READ TABLE gt_knb1 INTO ls_knb1 INDEX e_row_id-index.
    CHECK ( ls_knb1-kunnr IS NOT INITIAL ).
    CASE e_column_id-fieldname.
      WHEN 'KUNNR'.
        SET PARAMETER ID 'KUN' FIELD ls_knb1-kunnr.
        SET PARAMETER ID 'BUK' FIELD ls_knb1-bukrs.
        CALL TRANSACTION 'XD03' AND SKIP FIRST SCREEN.
      WHEN 'ERNAM'.
*        SET PARAMETER ID 'USR' FIELD ls_knb1-ernam.
*        NOTE: no parameter id available, yet simply show the priciple
        CALL TRANSACTION 'SU01' AND SKIP FIRST SCREEN.
      WHEN OTHERS.
*       do nothing
    ENDCASE.
*   Set active cell to field BUKRS otherwise the focus is still on
*   field KUNNR which will always raise event HOTSPOT_CLICK
    ls_col_id-fieldname = 'BUKRS'.
    CALL METHOD go_grid1->set_current_cell_via_id
      EXPORTING
        is_row_id    = e_row_id
        is_column_id = ls_col_id.
ENDMETHOD.                    "handle_hotspot_click
METHOD handle_button_click.
*   define local data
    DATA:
      ls_knb1     TYPE knb1.
    READ TABLE gt_knb1 INTO ls_knb1 INDEX es_row_no-row_id.
    CHECK ( ls_knb1-kunnr IS NOT INITIAL ).
    SET PARAMETER ID 'KUN' FIELD ls_knb1-kunnr.
    SET PARAMETER ID 'BUK' FIELD ls_knb1-bukrs.
    CALL TRANSACTION 'XD03' AND SKIP FIRST SCREEN.
ENDMETHOD.                    "handle_button_click
ENDCLASS.                    "lcl_eventhandler IMPLEMENTATION
START-OF-SELECTION.
SELECT        * FROM knb1 INTO TABLE gt_knb1
         WHERE bukrs = p_bukrs.
** TRY.
**      CALL METHOD cl_salv_table=>factory
***      EXPORTING
***      LIST_DISPLAY   = IF_SALV_C_BOOL_SAP=>FALSE
***      R_CONTAINER    =
***      CONTAINER_NAME =
**        IMPORTING
**          r_salv_table   = go_table
**        CHANGING
**          t_table        = gt_knb1.
**    CATCH cx_salv_msg .
** ENDTRY.
** go_table->display( ).
** go_table->get_metadata( ).
** EXIT.
* Create docking container
CREATE OBJECT go_docking
    EXPORTING
      parent = cl_gui_container=>screen0
      ratio = 90
    EXCEPTIONS
      OTHERS = 6.
IF sy-subrc <> 0.
*   MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*              WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
* Create ALV grid
CREATE OBJECT go_grid1
    EXPORTING
      i_parent = go_docking
    EXCEPTIONS
      OTHERS   = 5.
IF sy-subrc <> 0.
*   MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*              WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
* Set event handler
SET HANDLER:
    lcl_eventhandler=>handle_hotspot_click FOR go_grid1,
    lcl_eventhandler=>handle_button_click FOR go_grid1.
* Build fieldcatalog and set hotspot for field KUNNR
PERFORM build_fieldcatalog_knb1.
* Display data
CALL METHOD go_grid1->set_table_for_first_display
    CHANGING
      it_outtab       = gt_knb1
      it_fieldcatalog = gt_fcat
    EXCEPTIONS
      OTHERS          = 4.
IF sy-subrc <> 0.
*   MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*              WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
* Link the docking container to the target dynpro
CALL METHOD go_docking->link
    EXPORTING
      repid                       = syst-repid
      dynnr                       = '0100'
*      CONTAINER                   =
    EXCEPTIONS
      OTHERS                      = 4.
IF sy-subrc <> 0.
*   MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*              WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
* ok-code field = GD_OKCODE
CALL SCREEN '0100'.
END-OF-SELECTION.
*&      Module STATUS_0100 OUTPUT
*       text
MODULE status_0100 OUTPUT.
SET PF-STATUS 'STATUS_0100'.
* SET TITLEBAR 'xxx'.
ENDMODULE.                 " STATUS_0100 OUTPUT
*&      Module USER_COMMAND_0100 INPUT
*       text
MODULE user_command_0100 INPUT.
CASE gd_okcode.
    WHEN 'BACK' OR
         'END' OR
         'CANC'.
      SET SCREEN 0. LEAVE SCREEN.
    WHEN OTHERS.
ENDCASE.
CLEAR: gd_okcode.
ENDMODULE.                 " USER_COMMAND_0100 INPUT
*&      Form BUILD_FIELDCATALOG_KNB1
*       text
* --> p1        text
* <-- p2        text
FORM build_fieldcatalog_knb1 .
* define local data
DATA:
    ls_fcat        TYPE lvc_s_fcat.
CALL FUNCTION 'LVC_FIELDCATALOG_MERGE'
    EXPORTING
*     I_BUFFER_ACTIVE              =
      i_structure_name             = 'KNB1'
*     I_CLIENT_NEVER_DISPLAY       = 'X'
*     I_BYPASSING_BUFFER           =
*     I_INTERNAL_TABNAME           =
    CHANGING
      ct_fieldcat                  = gt_fcat
    EXCEPTIONS
      inconsistent_interface       = 1
      program_error                = 2
      OTHERS                       = 3.
IF sy-subrc <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*         WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
LOOP AT gt_fcat INTO ls_fcat
          WHERE ( fieldname = 'KUNNR' OR
                  fieldname = 'ERNAM' OR
                  fieldname = 'BUKRS' ).
    IF ( ls_fcat-fieldname = 'BUKRS' ).
      ls_fcat-style = cl_gui_alv_grid=>mc_style_button.
      " column appears as button
    ELSEIF ( ls_fcat-fieldname = 'KUNNR' ).
      ls_fcat-style = cl_gui_alv_grid=>mc_style_button.
      ls_fcat-hotspot = abap_true.
    ELSE.
      ls_fcat-hotspot = abap_true.
    ENDIF.
    MODIFY gt_fcat FROM ls_fcat.
ENDLOOP.
ENDFORM.                    " BUILD_FIELDCATALOG_KNB1
Regards
Uwe

Can't enter a date into a table cell the way I want to

I am trying to put "Jul 2008" in a table cell but every time I remove focus from it, it changes to "Jul 1, 2008". This is very annoying, how can I turn this off?

I solved this by making the "Cell Format" "Text" using the Inspector.

Multiple tabs in table cell (FM 7)

Hey gang,
I've got a table that requires multiple tab stops in one table cell. They're easy enough to place--I use the Tab Stops segment in Paragraph Designer--but I cannot move back and forth between the tabs. Each tab stop must be numbered. For example, I inserted seven tab stops in the cell. Is there a way to step through the tab stops without leaving the cell?
Thanks in advance!
-terry-

I need to add that the above may not work, depending on your platform and FM release.
On FM7.1/Unix, Find randomly fails to find things in tables, and tabs are no exception. The hack above did not work.
On FM9/Win7, Find of \t did navigate between tabs in a table.
The real parent problem here may be: who gets to see the keycode from the [Tab] key? It appears that the OS GUI gets first crack at it, and what's passed to the app may not be an 09h character but some window nav event (that has to be converted back to an \x09 when the intent is to type a tab into the text, but when the focus is in an FM table, FM thinks you want nav).
An FM-specific sub-problem is that FM doesn't support tables within tables (actually, it does, but you have to create a new text frame inside an anchored frame inside the table cell). Tables within tables would eliminate the temptation to tab.
Tabs, of course, have been a CS problem forever, as there was never an agreed industry standard for what they meant (move 8 spaces, or move to next multiple of 8 space from left, or move to next tab stop, and what if none are defined, etc.). In FM, users who use tabs are generally doing so from habit from other word processors, and are grabbing the margin tab tool, rather than defining stops in Paragraph Designer. A later author updates the para format, resetting all overrides, and bye bye tabs.
I usually use borderless tables these days for body text layouts that might historically have been done as tabs.
If I need column-control inside table cells, I'll often use as many columns as needed, and straddle them in the cells that don't use the extra columns).

How to highlight the table cell color in respective colors as needed per the requirements??

var aData = [
    {notificationNo: "10000000", description: "Maintenance for boiler", location: "G001-STG-UTLR-BLR", equipmentNo: "100000053", orderStatus: "ordered"},
    {notificationNo: "10000010", description: "Genreal Maintenance for boiler", location: "G001-STG-UTLR-BLR", equipmentNo: "100000053", orderStatus: "notordered"},
    {notificationNo: "10000011", description: "boiler Maintenance", location: "G001-STG-UTLR-BLR", equipmentNo: "100000053", orderStatus: "ordered"},
    {notificationNo: "10000012", description: "Pump breakdown", location: "G001-STG-UTLR-BLR", equipmentNo: "100000053", orderStatus: "ordered"},
    {notificationNo: "10000013", description: "External service boiler", location: "G001-STG-UTLR-BLR", equipmentNo: "100000053", orderStatus: "notordered"},
jQuery.sap.require("sap.ui.model.json.JSONModel");
var oEnterpriseAsset_NotificationConsole;
sap.ui.model.json.JSONModel.extend("EAM_Notification_Console", {
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        oEnterpriseAsset_NotificationConsole = this;
            var oTable = new sap.ui.table.Table({
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            selectionMode: sap.ui.table.SelectionMode.Single,
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                new sap.ui.commons.Button({text: "Button in the Toolbar", press: function() { alert("Button pressed!"); }})
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        template: new sap.ui.commons.Link().bindProperty("text", "notificationNo").bindProperty("href", "href",
                function(aValue)
        //    sortProperty: "notificationNo",
            //filterProperty: "notificationNo",
            width: "200px"
        oTable.addColumn(new sap.ui.table.Column({
            label: new sap.ui.commons.Label({text: "Description"}),
            template: new sap.ui.commons.Link().bindProperty("text", "description").bindProperty("href", "href"),
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            //filterProperty: "notificationNo",
            //width: "200px"
        var oModel = new sap.ui.model.json.JSONModel();
        oModel.setData({modelData: aData});
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        oTable.bindRows("/modelData");
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        //alert("id of tbale " + idForTable);
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        for(var i=0;i<aData.length;i++)
         alert(aData[i].notificationNo);
        htmlOutput += '<tr style="display:none;"><td style="border-right:1px solid #e5e5e5;">Contract No</td><td>'+ aData[i].notificationNo+'</td></tr>';
        htmlOutput += '<tr style="display:none;"><td style="border-right:1px solid #e5e5e5;">Unit No</td><td>'+ aData[i].description+'</td></tr>';
        htmlOutput += '</table>';
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        content : htmlOutput,
              //2 wrkng sydney content : '<div id="cont_Mzc0NjN8NXwxfDF8NHxlZGY1ZjV8M3xGRkZGRkZ8Y3wx"><div id="spa_Mzc0NjN8NXwxfDF8NHxlZGY1ZjV8M3xGRkZGRkZ8Y3wx"><a id="a_Mzc0NjN8NXwxfDF8NHxlZGY1ZjV8M3xGRkZGRkZ8Y3wx" href="http://www.weather-wherever.co.uk/australia/sydney_v37463/" target="_blank" style="color:#333;text-decoration:none;">Weather forecast</a> © weather</div><script type="text/javascript" src="http://widget.weather-wherever.co.uk/js/Mzc0NjN8NXwxfDF8NHxlZGY1ZjV8M3xGRkZGRkZ8Y3wx"></script></div>',
              //content : '<div style="margin-left:-10px;margin-top:10px;width:100%;"><LINK rel="StyleSheet" href="http://weatherandtime.net/new_wid/w_5/style.css" type="text/css" media="screen"><div class="ww_5" id="ww_5_2119"><div class="l_b"></div><div class="c_b"><div class="day" id="d_0"><span class="den"></span><br><span class="date"></span><br><span class="temp"></span><div class="pict"></div><span class="press"></span><br><span class="hum"></span><br><span class="vet"></span><br></div><div class="day" id="d_1"><span class="den"></span><br><span class="date"></span><br><span class="temp"></span><div class="pict"></div><span class="press"></span><br><span class="hum"></span><br><span class="vet"></span><br></div><div class="day" id="d_2"><span class="den"></span><br><span class="date"></span><br><span class="temp"></span><div class="pict"></div><span class="press"></span><br><span class="hum"></span><br><span class="vet"></span><br></div><div class="cl"></div><div class="links"><a target="_blank" title="Pune Weather forecast" href="http://weatherandtime.net/en/Asia/India/Pune-weather.html">Pune Weather forecast</a><br><a style="font-size:12px !important;color:#12A0D7 !important;text-decoration:none !important;" href="http://weatherandtime.net/en/widgets-gallery.html" title="weather"></a></div></div><div class="r_b"></div></div><script type="text/javascript" src="http://weatherandtime.net/w_5.js?city=2119&lang=en&type=2&day=3"></script></div>',
          // initially behaves the same as Sample 1
             preferDOM : false,
             // use the afterRendering event for 2 purposes
    return     oTable;
/* In the screen shot as u can see.. I have to highlight the table cell in green color and red color for ordered and unordered status(which is binded to a json data) respectively....anyone please help??

Hi Abhi,
               Check this link it may helpHow I made highlight of specific values in Table

Highlighting text in a table cell

Im trying to get text in a table have it background shaded a different colour to the rest of the table cell but it doesnt work. No exceptions are thrown does anyone have any idea.
public Component getTableCellRendererComponent(JTable table,
        Object value,
        boolean isSelected,
        boolean hasFocus,
        int row,
        int column)
        setFont(table.getFont());
        this.setText(value));
        this.selectAll();
        this.setSelectionColor(new Color(0,0,255,100);
        return this;
    }

The answer is similar to what someone else asked recently for highlighting text in a JFormattedTextField cell.
class MyFocusListener extends FocusAdapter
public void focusGained(FocusEvent e)
SwingUtilities.invokeLater(new Runnable()
public void run()
selectAll();
Put that in your cell editor or its base class. You can change the color or whatever you want. I think the problem is a timing thing where normal focus processing is interrupting your changes. So give the focus processing time to run with this Runnable triggering your processing to occur on the Awt thread (as is proper) after the system is doing whatever it wants to do. Let us know if it works for you.

Table cell renderer works with any L&F, but not with Windows

Hi,
I created a table cell renderer / editor for a combobox in a table cell. This works all as expected, but if the Look&Feel is com.sun.java.swing.plaf.windows.WindowsLookAndFeel, which is the system L&F on Vista, the selected values in the combobox are not shown in the cell after loosing focus. Metal LF and Motif LF work, and a third party one "TinyLF" works as well.
Can anyone imagine why, and what needs to be changed to get a cross platform consistency without Metal LF?
A compilable demo:
import java.awt.BorderLayout;
import java.awt.Component;
import java.io.IOException;
import java.security.NoSuchAlgorithmException;
import javax.swing.DefaultCellEditor;
import javax.swing.DefaultComboBoxModel;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTable;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.table.TableModel;
public class Test {
    static class CellRendererWithComboBox extends JLabel implements TableCellRenderer {
        JLabel label = new JLabel();
         * Set this renderer to the given column
         * @param column
         * @param r
         * @param editable
        public void setRendererTo(JTable table, int column, boolean editable) {
            TableColumn col = table.getColumnModel().getColumn(column);
            JComboBox xc = new JComboBox(new DefaultComboBoxModel(new Object[]{1, 2, 3, 4, 5, 6, 7}));
            col.setCellEditor(new ComboBoxEditor(xc));
            col.setCellRenderer(this);
            xc.setEditable(editable);
        @Override
        public Component getTableCellRendererComponent(JTable table, Object value,
                boolean isSelected, boolean hasFocus, int row, int column) {
            if (hasFocus && isSelected) {
                if (isSelected) {
                    label.setForeground(table.getSelectionForeground());
                    label.setBackground(table.getSelectionBackground());
                } else {
                    label.setForeground(table.getForeground());
                    label.setBackground(table.getBackground());
                label.setText((value == null) ? "" : value.toString());
                return label;
            } else {
                label.setText((value == null) ? "" : value.toString());
                return label;
        class ComboBoxEditor extends DefaultCellEditor {
            private final JComboBox box;
            private boolean fire = true;
            public ComboBoxEditor(JComboBox b) {
                super(b);
                this.box = b;
                b.setLightWeightPopupEnabled(false);
            @Override
            public boolean stopCellEditing() {
                if (fire) {
                    super.stopCellEditing();
                return true;
            public void stopCellEditingSilent() {
                fire = false;
                stopCellEditing();
                fire = true;
    public static void main(String... aArgs) throws NoSuchAlgorithmException, IOException {
        try {
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        } catch (ClassNotFoundException classNotFoundException) {
        } catch (InstantiationException instantiationException) {
        } catch (IllegalAccessException illegalAccessException) {
        } catch (UnsupportedLookAndFeelException unsupportedLookAndFeelException) {
        JFrame p = new JFrame();
        JTable t = new JTable();
        TableModel m = new DefaultTableModel(new Object[][]{
                    new Object[]{1, 2, 3, 4, 5, 6, 7},
                    new Object[]{1, 2, 3, 4, 5, 6, 7},
                    new Object[]{1, 2, 3, 4, 5, 6, 7},
                    new Object[]{1, 2, 3, 4, 5, 6, 7},
                    new Object[]{1, 2, 3, 4, 5, 6, 7}},
                new Object[]{1, 2, 3, 4, 5, 6, 7});
        t.setModel(m);
        Test.CellRendererWithComboBox f = new CellRendererWithComboBox();
        f.setRendererTo(t, 1, true);
        p.setLayout(new BorderLayout());
        p.add(t, BorderLayout.CENTER);
        p.pack();
        p.setVisible(true);
}

1) Your custom cell renderer does nothing extra, so you can depend on default renderer.
2) Instead of extending JLabel and implementing TableCellReneder, you should extend DefaultTableCellRenderer and override its get renderer method because DefaultTableCellRenderer itself extends JLabel and aditionally it does some optimizations etc., which you can miss if you implement your own renderer.
3) If you set foreground and background color in last else statement also, then you can see the values correctly in windows L&F as well.
Thanks!

How to put gradient style table cell in a table?

Hey, I am making a custom table cell right now but my custom cell is just white cell with some buttons and labels in background color which looks not that great.
Is there a way to render the background color so that the cell has some vertical gradient effect?
For example, on top of the cell it looks white and as it gets closer to center of the cell, it gets darker.
But as it gets closer to the bottom of the cell, it gets whiter again.
A great example would be this free app called "friendsaroundme".
Another thing is that I don't want to use custom image to do it (i.e make the cell.backgroundcolor = [uicolor colorwithpatternimage:somethingsomething.png..... ) because it's not that flexible.
So is there anyway to render the gradient style programatically?

Congrats on answering your question, David! I'm sure many of the developers here would like to see your solution, so I hope you'll post it when you have the time. - Ray

Mail.app: text in table cells in incoming formatted mail - problems replying

MacOS 10.9.2
mail.app 7.2, threading enabled
Sometimes I receive a formatted email that is really difficult to reply to, when I want to intersperse my reply text among the incoming paragraphs.
The trouble occurs when multiple incoming paragraphs are grouped. I can’t open up vertical space for my reply text inside the groups.
If I click anywhere in the group, mail.app marks the group with a surrounding rounded-corner grey rectangle, with a X-in-a-circle “close icon” at the upper left corner.
When I look at the raw source of the incoming message, I see that the groups correspond to table cells, that is, the sending mail client enclosed the paragraphs within a <td> … </td> pair.
The sending email client is sending me a table, for no clear reason — the group doesn’t correspond to anything obvious in the message thread.
I’m guessing we won’t ever know why some email clients group paragraphs like this, but I’d like to do my best to adapt, so I can keep up with my incoming email.
Yeah, I can ask my correspondents to use a different email client, or perhaps different settings in the same client, but except for the few tekkies among my correspondents, this isn’t really practical. I can also ask my clients to use unformatted messages, but THAT is a whole different issue, and frequently isn’t practical, either.
My questions:
Q1: What’s the point of the grey rectangle and the “close icon”? (Is this mail.app’s way of saying, “I received this crazy formatting, almost impossible to process, so I’m making it easy for you to just delete the whole mess”? Or what?)
Q2: Is there any SIMPLE way to untangle (modify or remove) these groupings within mail.app? (I guess I can access the raw html, copy-and-paste it into another app, modify it, and paste the results back into my reply. Yuck!)
Q3: Am I missing a really obvious work-around or fix?
TIA

In your question, you indicated that you are running Firefox 8. Is that correct? It might be difficult to diagnose issues with that version because most people have moved on to Firefox 12 (plus or minus 1 version). Can you upgrade?
It's hard to think of a reason that ordinary text or links in ordinary text would not display. For embedded images or videos, one possibility is a difference in the protocol, i.e., HTTP (not secure) versus HTTPS (secure).
Hopefully someone else will have a better guess (or actual knowledge!).
Regarding the blue lines in a message, that usually indicates the earlier message was forwarded a few times. I don't know whether Gmail will let you reformat that area or whether you have to clean it in another application (e.g., for plain text, in Notepad) and paste it back in.

How to enable a table cell dynamically?

Hi
I have a javafx TableView with editable and non-editable columns. I have set editable columns CellFactory to a custom EditableTextCell.This makes the whole column editable on load of the Scene.
I have one more requirement for the same table. I have to make the table cell editable at runtime based on a flag in item mapped to tablerow. Only a single row cell should get editable not all the cells in column. How to do that? Please suggest.

Perhaps something like this
create or replace view v_myview
as
select id, name, 'table1' as tbl_nm from table1
union all
select id, name, 'table2' from table2
union all
select id, name, 'table3' from table3
union all
select id, name, 'table4' from table4
select name
from v_myview
where id = 101
and tbl_nm = :P101_TABLE_NAME;

Small issue with custom table cell editor and unwanted table row selection

I'm using a custom table cell editor to display a JTree. Thing i notice is that when i select a value in the tree pop-up, the pop-up closes (as it should) but then every table row, from the editing row to the row behind the pop-up when i selected the value becomes highlighted. I'm thinking this is a focus issue, but it thought i took care of that. To clairfy, look at this: Before . Notice how the "Straightening" tree item is roughly above the "Stock Thickness" table row? When i select Straightening, this is what happens to my table: After .
My TreeComboBox component:
public class TreeComboBox extends JPanel implements MouseListener {
    private JTextField itemField;
    private TreeModel treeModel;
    private ArrayList<ActionListener> actionListeners = new ArrayList<ActionListener>();
    private Object selectedItem;
     * Creates a new <code>TreeComboBox</code> instance.
     * @param treeModel the tree model to be used in the drop-down selector.
    public TreeComboBox(TreeModel treeModel) {
        this(treeModel, null);
     * Creates a new <code>TreeComboBox</code> instance.
     * @param treeModel the tree model to be used in the drop-down selector.
     * @param selectedItem tree will expand and highlight this item.
    public TreeComboBox(TreeModel treeModel, Object selectedItem) {
        this.treeModel = treeModel;
        this.selectedItem = selectedItem;
        initComponents();
     * Returns the current drop-down tree model.
     * @return the current <code>TreeModel</code> instance.
    public TreeModel getTreeModel() {
        return treeModel;
     * Sets the tree model.
     * @param treeModel a <code>TreeModel</code> instance.
    public void setTreeModel(TreeModel treeModel) {
        this.treeModel = treeModel;
     * Returns the selected item from the drop-down selector.
     * @return the selected tree object.
    public Object getSelectedItem() {
        return selectedItem;
     * Sets the selected item in the drop-down selector.
     * @param selectedItem tree will expand and highlight this item.
    public void setSelectedItem(Object selectedItem) {
        this.selectedItem = selectedItem;
        String text = selectedItem != null ? selectedItem.toString() : "";
        itemField.setText(text);
        setToolTipText(text);
     * Overridden to enable/disable all child components.
     * @param enabled flat to enable or disable this component.
    public void setEnabled(boolean enabled) {
        itemField.setEnabled(enabled);
        super.setEnabled(enabled);
    public void addActionListener(ActionListener listener) {
        actionListeners.add(listener);
    public void removeActionListener(ActionListener listener) {
        actionListeners.remove(listener);
    // MouseListener implementation
    public void mouseClicked(MouseEvent e) {
    public void mouseEntered(MouseEvent e) {
    public void mouseExited(MouseEvent e) {
    public void mousePressed(MouseEvent e) {
    public void mouseReleased(MouseEvent e) {
        showPopup();
    private void initComponents() {
        setLayout(new GridBagLayout());
        itemField = new JTextField();
        itemField.setEditable(false);
        itemField.setText(selectedItem != null ? selectedItem.toString() : "");
        itemField.addMouseListener(this);
        add(itemField, new GridBagConstraints(0, 0, 1, 1, 1.0, 0.0,
                GridBagConstraints.WEST, GridBagConstraints.HORIZONTAL, new Insets(0, 0, 0, 0), 0, 0));
    private void showPopup() {
        final TreePopup popup = new TreePopup();
        final TreeComboBox tcb = this;
        final int x = itemField.getX();
        final int y = itemField.getY() + itemField.getHeight();
        int width = itemField.getWidth() + popupButton.getWidth();
        Dimension prefSize = popup.getPreferredSize();
        prefSize.width = width;
        popup.setPreferredSize(prefSize);
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                popup.show(tcb, x, y);
                popup.requestFocusInWindow();
    private void fireActionPerformed() {
        ActionEvent e = new ActionEvent(this, ActionEvent.ACTION_PERFORMED, "TreeComboBoxSelection");
        for (ActionListener listener : actionListeners) {
            listener.actionPerformed(e);
    private class TreePopup extends JPopupMenu {
        private JTree tree;
        private JScrollPane scrollPane;
        public TreePopup() {
            initComponents();
            initData();
        private void initData() {
            if (treeModel != null) {
                tree.setModel(treeModel);
        private void initComponents() {
            setFocusable(true);
            setFocusCycleRoot(true);
            tree = new JTree();
            tree.setRootVisible(false);
            tree.setShowsRootHandles(true);
            tree.setFocusable(true);
            tree.setFocusCycleRoot(true);
            tree.addTreeSelectionListener(new TreeSelectionListener() {
                public void valueChanged(TreeSelectionEvent e) {
                    tree_valueChanged(e);
            scrollPane = new JScrollPane(tree);
            add(scrollPane);
        private void tree_valueChanged(TreeSelectionEvent e) {
            DefaultMutableTreeNode node = (DefaultMutableTreeNode) tree.getLastSelectedPathComponent();
            setSelectedItem(node.getUserObject());
            fireActionPerformed();
            this.setVisible(false);
}My TreeComboBoxTableCellEditor:
public class TreeComboBoxTableCellEditor extends AbstractCellEditor implements TableCellEditor, ActionListener {
    protected TreeComboBox treeComboBox;
    protected ArrayList<CellEditorListener> cellEditorListeners = new ArrayList<CellEditorListener>();
    public TreeComboBoxTableCellEditor(TreeComboBox treeComboBox) {
        this.treeComboBox = treeComboBox;
        treeComboBox.addActionListener(this);
    public Object getCellEditorValue() {
        return treeComboBox.getSelectedItem();
    public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) {
        treeComboBox.setSelectedItem(value);
        return treeComboBox;
    public void actionPerformed(ActionEvent e) {
        stopCellEditing();
}Any thoughts?
Edited by: MiseryMachine on Apr 3, 2008 1:21 PM
Edited by: MiseryMachine on Apr 3, 2008 1:27 PM

As I said, you have to have empty context elements before additional rows will be open for input.
For instance if you want to start with 5 rows available for input do the following to your internal table that you will bind:
data itab type standard table of sflight.
do 5 times.
append initial line to itab.
enddo.
context_node->bind_table( itab ).
The other option if you need n number of rows is to add a button to the table toolbar for adding more rows. When this button is pressed, you add a new context element to the node - thereby creating a new empty row in the table.

Making table cells non-focusable

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