How to color a cell in a JTable
From: "clusardi2k" <clusardi2k@1:261/38.remove-10ae-this>
From: clusardi2k@aol.com
How would you use the idea in PROJECT 1 to color a cell in the PROJECT 2.
References:
(1) http://tips4java.wordpress.com/2010/01/24/table-row-rendering/
(2) http://www.java-tips.org/java-se-tips/javax.swing/sorting-and-filtering
-tables.html
Thank you,
//-------------- PROJECT 1 ---------------------
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package javaapplication1;
import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.border.*;
public class TableRowRenderingTip extends JPanel {
public TableRowRenderingTip()
{
Object[] columnNames = {"Type", "Company", "Shares", "Price",
"Boolean"};
Object[][] data =
{
{"Buy", "IBM", new Integer(1000), new Double(80.5),
Boolean.TRUE},
{"Sell", "Dell", new Integer(2000), new Double(6.25),
Boolean.FALSE},
{"Short Sell", "Apple", new Integer(3000), new
Double(7.35), Boolean.TRUE},
{"Buy", "MicroSoft", new Integer(4000), new
Double(27.50), Boolean.FALSE},
{"Short Sell", "Cisco", new Integer(5000), new
Double(20), Boolean.TRUE}
};
DefaultTableModel model = new DefaultTableModel(data,
columnNames)
{
public Class getColumnClass(int column)
{
return getValueAt(0, column).getClass();
}
};
JTabbedPane tabbedPane = new JTabbedPane();
tabbedPane.addTab("Data", createData(model));
add( tabbedPane );
}
private JComponent createData(DefaultTableModel model)
{
JTable table = new JTable( model )
{
public Component prepareRenderer(TableCellRenderer
renderer, int row, int column)
{
Component c = super.prepareRenderer(renderer,
row, column);
// Color row based on a cell value
if (!isRowSelected(row))
{
c.setBackground(getBackground());
int modelRow =
convertRowIndexToModel(row);
String type =
(String)getModel().getValueAt(modelRow, 0);
if ("Buy".equals(type))
c.setBackground(Color.GREEN);
if ("Sell".equals(type))
c.setBackground(Color.YELLOW);
}
return c;
}
};
table.setPreferredScrollableViewportSize(table.getPreferredSize
());
table.changeSelection(0, 0, false, false);
table.setAutoCreateRowSorter(true);
return new JScrollPane( table );
}
public static void main(String[] args)
{
SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
}
});
}
public static void createAndShowGUI()
{
JFrame.setDefaultLookAndFeelDecorated(true);
JFrame frame = new JFrame("Table Row Rendering");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add( new TableRowRenderingTip() );
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
}
//-------------- PROJECT 2 ---------------------
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package javaapplication2;
import java.awt.BorderLayout;
import java.awt.EventQueue;
import javax.swing.*;
import javax.swing.table.DefaultTableModel; import
javax.swing.table.TableModel; import javax.swing.table.TableRowSorter;
public class testtable extends javax.swing.JFrame {
/**
* Creates new form testtable
*/
public testtable() {
initComponents();
Runnable runner = new Runnable() {
public void run() {
Object rows[][] = {
{"AMZN", "Amazon", 41.28},
{"EBAY", "eBay", 41.57},
{"GOOG", "Google", 388.33},
{"MSFT", "Microsoft", 26.56},
{"NOK", "Nokia Corp", 17.13},
{"ORCL", "Oracle Corp.", 12.52},
{"SUNW", "Sun Microsystems", 3.86},
{"TWX", "Time Warner", 17.66},
{"VOD", "Vodafone Group", 26.02},
{"YHOO", "Yahoo!", 37.69}
};
String columns[] = {"Symbol", "Name", "Price"};
TableModel model =
new DefaultTableModel(rows, columns) {
public Class getColumnClass(int column) {
Class returnValue;
if ((column >= 0) && (column < getColumnCount())) {
returnValue = getValueAt(0, column).getClass();
} else {
returnValue = Object.class;
}
return returnValue;
}
};
RowSorter<TableModel> sorter =
new TableRowSorter<TableModel>(model);
jTable1.setModel(model);
jTable1.setRowSorter(sorter);
}
};
EventQueue.invokeLater(runner);
}
/**
* This method is called from within the constructor to initialize the
form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jScrollPane1 = new javax.swing.JScrollPane();
jTable1 = new javax.swing.JTable();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jTable1.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {
{null, null, null, null},
{null, null, null, null},
{null, null, null, null},
{null, null, null, null}
},
new String [] {
"Title 1", "Title 2", "Title 3", "Title 4"
}
));
jScrollPane1.setViewportView(jTable1);
javax.swing.GroupLayout layout = new
javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADIN
G)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jScrollPane1,
javax.swing.GroupLayout.PREFERRED_SIZE, 375,
javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(13, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADIN
G)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING,
layout.createSequentialGroup()
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE,
Short.MAX_VALUE)
.addComponent(jScrollPane1,
javax.swing.GroupLayout.PREFERRED_SIZE, 275,
javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap())
);
pack();
}// </editor-fold>
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/*
* Set the Nimbus look and feel
*/
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting
code (optional) ">
/*
* If Nimbus (introduced in Java SE 6) is not available, stay with the
* default look and feel. For details see
* http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.
html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info :
javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(testtable.class.getName()).log(j
ava.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(testtable.class.getName()).log(j
ava.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(testtable.class.getName()).log(j
ava.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(testtable.class.getName()).log(j
ava.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/*
* Create and display the form
*/
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new testtable().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTable jTable1;
// End of variables declaration
}
-+- BBBS/Li6 v4.10 Dada-1
+ Origin: Prism bbs (1:261/38)
-+- Synchronet 3.16a-Win32 NewsLink 1.98
Time Warp of the Future BBS - telnet://time.synchro.net:24
--- BBBS/Li6 v4.10 Dada-1
* Origin: Prism bbs (1:261/38)
--- Synchronet 3.16a-Win32 NewsLink 1.98
Time Warp of the Future BBS - telnet://time.synchro.net:24