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Groups > comp.lang.java.programmer > #16411 > unrolled thread

How to color a cell in a JTable

Started byclusardi2k@aol.com
First post2012-07-27 10:07 -0700
Last post2012-07-27 13:57 -0700
Articles 3 — 2 participants

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  How to color a cell in a JTable clusardi2k@aol.com - 2012-07-27 10:07 -0700
    Re: How to color a cell in a JTable clusardi2k@aol.com - 2012-07-27 10:35 -0700
    Re: How to color a cell in a JTable markspace <-@.> - 2012-07-27 13:57 -0700

#16411 — How to color a cell in a JTable

Fromclusardi2k@aol.com
Date2012-07-27 10:07 -0700
SubjectHow to color a cell in a JTable
Message-ID<0b779276-ce03-47e1-8ab9-0681e2ebee73@googlegroups.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.LEADING)
            .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.LEADING)
            .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(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(testtable.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(testtable.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(testtable.class.getName()).log(java.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
}

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#16412

Fromclusardi2k@aol.com
Date2012-07-27 10:35 -0700
Message-ID<50ae32ba-6330-451b-85b1-ecf90a5f481c@googlegroups.com>
In reply to#16411
The below project will paint all cells red!

//-------------- 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; 

class CustomRenderer extends DefaultTableCellRenderer  
{     
    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column)     
    {         
        Component c = super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);         
        c.setBackground(new java.awt.Color(255, 72, 72));         
        return c;     
    } 
}

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; 
             } 
           }; 

        jTable1.setDefaultRenderer(String.class, new CustomRenderer()); 

        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.LEADING)
            .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.LEADING)
            .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(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(testtable.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(testtable.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(testtable.class.getName()).log(java.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
}

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#16444

Frommarkspace <-@.>
Date2012-07-27 13:57 -0700
Message-ID<juuvc1$lp4$1@dont-email.me>
In reply to#16411
On 7/27/2012 10:07 AM, clusardi2k@aol.com wrote:
> How would you use the idea in PROJECT 1 to color a cell in the PROJECT 2.


Do your own homework.

Seriously;  asking us stuff like this is just rude.

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