JTable Cell Renderer - Using DefaultTableCellRender

Hi.
I am posting this Question again in a simplified manner.
How to color complete row by checking the "value" when you are using ur custom made RowRenderer which extends DefaultTableCellRenderer. In this case only one cell gets colored.
What I am doing is :
public Component getTableCellRendererComponent( JTable table, Object value, boolean isSelected,
boolean isFocused, int row, int column)
Component component=super.getTableCellRendererComponent(table, value, isSelected, isFocused, row, column);
component.setForeground(Color.black);
component.setBackground(Color.white);
if(value.equals("data1"))
component.setForeground(Color.black);
component.setBackground(Color.red);
table.validate();
setOpaque(true);
else if(value.equals("data2"))
component.setForeground(Color.black);
component.setBackground(Color.orange);
setOpaque(true);
else if(value.equals("data3"))
component.setForeground(Color.black);
component.setBackground(Color.yellow);
setOpaque(true);
else if(value.equals("data4"))
component.setForeground(Color.black);
component.setBackground(Color.green);
setOpaque(true);
Thanks in advance
--Amit

HI
I just Figured out that I have to do the following to get at right - The only thing I have to add was
String type = (String) table.getValueAt(row, 0);
The code is :-
public Component getTableCellRendererComponent( JTable table, Object value, boolean isSelected,
boolean isFocused, int row, int column)
Component component=super.getTableCellRendererComponent(table, value, isSelected, isFocused, row, column);
component.setForeground(Color.black);
component.setBackground(Color.white);
String type = (String) table.getValueAt(row, 0);
if(type.equals("data1"))
component.setForeground(Color.black);
component.setBackground(Color.red);
else if(type.equals("data2"))
component.setForeground(Color.black);
component.setBackground(Color.orange);
else if(type.equals("data3"))
component.setForeground(Color.black);
component.setBackground(Color.yellow);
else if(type.equals("data4"))
component.setForeground(Color.black);
component.setBackground(Color.green);
setBorder(noFocusBorder);
return component;

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see http://homepage1.nifty.com/algafield/sscce.html,
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Don't forget to use the "Code Formatting Tags",
see http://forum.java.sun.com/help.jspa?sec=formatting,
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Perhaps you can continue from there?
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JTable Cell RENDERER PROBLEM!!! PLEASE HELP

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DetailTableCellRenderer());
Hi, thanks for the reply...detailedtable is an instance of JTable not a subclass...
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thanks...
Sid

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public Test() {
     super();
     addWindowListener(new WindowAdapter() {
          public void WindowClosing(WindowEvent e) {
               System.exit(0);
     init();
private void init() {
     byte[] b1 = new byte[]{2};
     byte[] b2 = new byte[]{1};
     StringBuffer sb = new StringBuffer("test");
     sb.append(new String(b1));
     sb.append(new String(b2));
     sb.append("02");
     data = new Object[][]{{"test\n01\n", new String(sb), "test03"}, {"test11", "test12", "test13"}};
     columnNames = new Object[]{"Column 1", "Column 2", "Column 3"};
     JTable table = new JTable();
     ((javax.swing.table.DefaultTableModel)table.getModel()).setDataVector(data, columnNames);
     JTextField tf = new JTextField();
     tf.setDocument(new PlainDocument());
     DefaultCellEditor cellEditor = new DefaultCellEditor(tf);
     table.setCellEditor(cellEditor);
     this.getContentPane().setLayout(new BorderLayout());
     this.getContentPane().add(table, BorderLayout.CENTER);
     Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
     this.setBounds(50, 50, 300, 75);
public static void main(String[] args) {
     Test t = new Test();
     t.show();
}

RE 1.
The base class for renderers is a label and labels don't read newlines. The base class for an editor is a text field. Text fields read new lines.
RE 2.
The cursor is probably trying to interpret where its supposed to go after the newline and getting confused but I'm not sure

JTable Cell Renderer

New to Swing ...
I have a JTable that I fill with data from a database. Some of the pieces of data have a flag associated with it to say whether that data is a cause for a problem. I would like the background of the specific piece of data (i.e., the specific cell) to be red. How can I go about doing this?

Thank you for your help. This is what I created and it works:
public class RedCellRender extends DefaultTableCellRenderer{
       TextAndFlag textAndFlag;
       public RedCellRender(TextAndFlag t)
         textAndFlag = t;
       public Component getTableCellRendererComponent(JTable table, Object value,
         boolean isSelected, boolean hasFocus, int row, int column)
            TextAndFlag taf = (TextAndFlag)value;
            String text = taf.getText();
            boolean flag = taf.isFlag();
            JLabel label = new JLabel(text, SwingConstants.RIGHT);
            if (flag){
                 label.setBackground(Color.RED);
                 label.setOpaque(true);
                 return label;
}

JTable cell rendering

Can anybody help me rendering a single table cell with more than one component? For example I want to set a Combobox followed by a button in the same table cell.
Thanks
Unni

DefaultTableCellRenderer is in fact a subbed JLabel. So, yes - as you can add components to a JLabel and even change the label's LayoutManager, you can treat it as if it were a JPanel.
The trick is going to be how you handle the editing......

Jtable cell renderering

Hi,
is it possible to pass a different value other than the one automatically sent, in my case the string in the table, but perhaps an integer decribing the appointment type???
Thanks
Rudy

Hi,
is it possible to pass a different value other than the one automatically sent, in my case the string in the table, but perhaps an integer decribing the appointment type???
Thanks
Rudy

Cell Renderer problem JRE1.4

Hi,
I have a JTable cell that uses a JTextArea as renderer. If the cell value is greater than a specific length it wraps and also increases the cell height
If the browser uses JRE1.3 the wrapped text appears right but if the browser uses JRE1.4 it does not display the text in the second line and also the height of the row is not increased.
Can anyone help me with this.
Thanks.

I fixed the problem. My bad. I should have got the column width and set it to the TextArea before trying to get the TextArea height.

Edit a JTable cell, click save button, value isn't stored in JTable

I'm editing a JTable cell, just using default editor provided by JTable
I click a save button elsewhere in my GUI
The value typed into the cell so far isn't stored in the TableModel yet and so doesn't get saved.
How can I make sure the value gets stored in the JTable in the above scenario when the JButton is pressed but before saving.
Preferably I'd like the code with the JButton not to have to know about the JTable at all.
Cheers,
D

I the forums 100s of times.Many thanks. If they had a decent search on this forum I might have found it as I did try.
Come to think of it - Sun have completely fcukd up this forum.

JTable Cell Renderer - Using DefaultTableCellRender

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