Displaying line numbers in JTextPane?

Hi I have attached a JTextPane to an InternalFrame. What i wanted to do is i have to display line number on the left side of the textpane and that should be not editable(only Line number) and when we move to the next line the cursor has to be placed right next to the line number. How this can be done?

You can try this one http://www.developer.com/java/other/article.php/3318421/Add-Line-Numbering-in-the-JEditorPane.htm
Or this http://java-sl.com/bullets_numberings.html (bullets/numbering based)
Or this http://tips4java.wordpress.com/2009/05/23/text-component-line-number/

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I absolutely didn't know where it was, so I had to look for it, and it appears easy to find.
Hit Tools
Hit Preferences
Expand Code Editor
Navigate to line gutter
Now click 'Show line numbers'
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Sybrand Bakker
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Richard,
not as far as I am aware of.
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JTextPane displaying line numbers

Hi,
I have a JTextPane that displays a certain text; I want to add to the left side of it a "sidebar" that displays a number for each line i.e.
1 | AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
30 | AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
60 | AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
90 | AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
The sidebar i mentioned is that with the numbers (1,30,60...). I want it to have a different color and when i copy the text i want to take only the AAAAA part and not the numbers.
Is there a JComponent i can add to the JTextPane or a method to highlight and make this "side text " non editable?
Thanks in advance for your help
Best Regards
Mubiol

Try this
best regards
Stas
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.text.*;
import javax.swing.text.rtf.*;
class Test extends JFrame
public Test()
super("Test");
JEditorPane edit = new JEditorPane();
edit.setEditorKit(new MyRTFEditorKit());
edit.setEditable(true);
JScrollPane scroll=new JScrollPane(edit);
getContentPane().add(scroll);
setSize(300,300);
setVisible(true);
public static void main(String a[])
new Test();
class MyRTFEditorKit extends RTFEditorKit
public ViewFactory getViewFactory()
return new MyRTFViewFactory();
class MyRTFViewFactory implements ViewFactory
public View create(Element elem)
String kind = elem.getName();
if (kind != null)
if (kind.equals(AbstractDocument.ContentElementName)) {
return new LabelView(elem);
} else if (kind.equals(AbstractDocument.ParagraphElementName)) {
// return new ParagraphView(elem);
return new MyParagraphView(elem);
} else if (kind.equals(AbstractDocument.SectionElementName)) {
// return new BoxView(elem, View.Y_AXIS);
return new MySectionView(elem, View.Y_AXIS);
} else if (kind.equals(StyleConstants.ComponentElementName)) {
return new ComponentView(elem);
} else if (kind.equals(StyleConstants.IconElementName)) {
return new IconView(elem);
// default to text display
return new LabelView(elem);
class MySectionView extends BoxView {
public MySectionView(Element e, int axis)
super(e,axis);
public void paintChild(Graphics g,Rectangle r,int n) {
if (n>0) {
MyParagraphView child=(MyParagraphView)this.getView(n-1);
int shift=child.shift+child.childCount;
MyParagraphView current=(MyParagraphView)this.getView(n);
current.shift=shift;
super.paintChild(g,r,n);
class MyParagraphView extends javax.swing.text.ParagraphView
public int childCount;
public int shift=0;
public MyParagraphView(Element e)
super(e);
short top=0;
short left=20;
short bottom=0;
short right=0;
this.setInsets(top,left,bottom,right);
public void paint(Graphics g, Shape a)
childCount=this.getViewCount();
super.paint (g,a);
int rowCountInThisParagraph=this.getViewCount(); //<----- YOU HAVE REAL ROW COUNT FOR ONE PARAGRAPH}
System.err.println(rowCountInThisParagraph);
public void paintChild(Graphics g,Rectangle r,int n) {
super.paintChild(g,r,n);
g.drawString(Integer.toString(shift+n+1),r.x-20,r.y+r.height-3);

How to print line numbers in NWDS for Java?

Hi everyone,
does someone know how to print out program code with line numbers from the Netweaver Developer Studio for Java? This is inevitable for code reviews.
In Eclipse 3.4 this issue is solved. Is there possibly such a patch for NWDS as well?
Thanks,
Maria

Hi Pascal,
thanks for the quick reply. The setting you mention displays line numbers on the screen alright, but printing out does not work.
We use: SAP NetWeaver Developer Studio for SAP NetWeaver 7.1 SP06 PAT0000, Build id: 200807051938.
I guess it just does not work, because it was fixed only for Eclipse 3.4, and the above NWDS version bases on Eclipse 3.3.
What do you recommend for code inspections - copy/paste into PSPad or do you know a more comfortable practice?
Greetings
Maria

Listing with line numbers

how do I get a listing with line numbers to check compile errors with?

how do I get a listing with line numbers to check compile errors with? What listing from where using what?
AFAIK javac and jikes compilers give you the line numbers. What compiler are you using?
Or do you mean how to display line numbers with this or that editor? If it isn't obvious I'd suggest getting a proper editor (as others have suggested)!
BTW: eEdit = jEdit?

Printing from Xcode: Line Numbers ?

How can I print source from Xcode with line numbers ?

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=Tod
PS I am speaking of Xcode < v3 here. I've only dabbled in v3 so I can't say what may have been added.

What is the proper way to record line numbers in Master/Detail records?

Guys and Gals,
Been thinking about this for awhile, but thought it best to ask the people who really know what they are doing.
What is the proper way to record & show line numbers in a Master / Detail record set?
For example, take Master/Detail relationship Orders and OrderItems. Orders has a column Document_Number and OrderItems has Document_Number, Line_Number. Line_Number should contain the row number 1,2,3,4 ... etc. for each row in a document.
Should I ...
<ol><li>Add a sequence and a trigger in the database? The FusionOrderDemo does this, but then the sequence never "resets" and I've got row numbers that keep incrementing. So one document has rows 4,5,6 and the next document has 7,8,9 when they should both have 1,2,3.</li>
<li>Programmatically take care of the row numbers? This seems like I'm asking for trouble. Anytime an insert or delete operation gets done, I'll have to iterate through rows and re-assign row numbers.</li>
<li>Is there a way to assign row numbers in a table iterator (or data collection?) to an entity?</li></ol>
Any suggestions would be appreciated. It's looking like #2 is my only option, but if anyone knows different I'd love the input.
Will

Thank you both guys.
As John said, I believe I'm looking for a gap-free sequence per master record.
The line number of the OrderItems table is the second half of the primary key. The first half of the primary key (DocumentNumber) is the foreign key to the Orders table.
Think of it like line items on an order or invoice. For example, if you were talking to someone on the phone concerning an invoice, you might say, "The pricing for line item #3 is incorrect." In this case, it's good to have a common reference. Or imagine a Microsoft Excel spreadsheet with no row numbers displayed! You'd never get anywhere if you had to explain something over the phone.
If this is tricky to perform, I take it using a sequence and trigger such as the Fusion Order Demo is the best way to approach the challenge for simplicity's sake?
Will

Line Number in JTextPane

Hi Experts;
How do I add a caret listener on this code so that it will just add a number
when the user goes to the next line.
import java.awt.*;
import javax.swing.*;
public class LineNumber extends JComponent
     private final static Color DEFAULT_BACKGROUND = new Color(213, 213, 234);
     private final static Color DEFAULT_FOREGROUND = Color.white;
     private final static Font DEFAULT_FONT = new Font("arial", Font.PLAIN, 11);
     // LineNumber height (abends when I use MAX_VALUE)
     private final static int HEIGHT = Integer.MAX_VALUE - 1000000;
     // Set right/left margin
     private final static int MARGIN = 5;
     // Line height of this LineNumber component
     private int lineHeight;
     // Line height of this LineNumber component
     private int fontLineHeight;
     // With of the LineNumber component
     private int currentRowWidth;
     // Metrics of this LineNumber component
     private FontMetrics fontMetrics;
      * Convenience constructor for Text Components
     public LineNumber(JComponent component)
          if (component == null)
               setBackground( DEFAULT_BACKGROUND );
               setForeground( DEFAULT_FOREGROUND );
               setFont( DEFAULT_FONT );
          else
               setBackground( DEFAULT_BACKGROUND );
               setForeground( DEFAULT_FOREGROUND );
               setFont( component.getFont() );
          setPreferredSize( 99 );
     public void setPreferredSize(int row)
          int width = fontMetrics.stringWidth( String.valueOf(row) );
          if (currentRowWidth < width)
               currentRowWidth = width;
               setPreferredSize( new Dimension(2 * MARGIN + width, HEIGHT) );
     public void setFont(Font font)
          super.setFont(font);
          fontMetrics = getFontMetrics( getFont() );
          fontLineHeight = fontMetrics.getHeight();
      * The line height defaults to the line height of the font for this
      * component. The line height can be overridden by setting it to a
      * positive non-zero value.
     public int getLineHeight()
          if (lineHeight == 0)
               return fontLineHeight;
          else
               return lineHeight;
     public void setLineHeight(int lineHeight)
          if (lineHeight > 0)
               this.lineHeight = lineHeight;
     public int getStartOffset()
          return 4;
     public void paintComponent(Graphics g)
           int lineHeight = getLineHeight();
           int startOffset = getStartOffset();
           Rectangle drawHere = g.getClipBounds();
           g.setColor( getBackground() );
           g.fillRect(drawHere.x, drawHere.y, drawHere.width, drawHere.height);
           g.setColor( getForeground() );
           int startLineNumber = (drawHere.y / lineHeight) + 1;
           int endLineNumber = startLineNumber + (drawHere.height / lineHeight);
           int start = (drawHere.y / lineHeight) * lineHeight + lineHeight - startOffset;
           for (int i = startLineNumber; i <= endLineNumber; i++)
           String lineNumber = String.valueOf(i);
           int width = fontMetrics.stringWidth( lineNumber );
           g.drawString(lineNumber, MARGIN + currentRowWidth - width, start);
           start += lineHeight;
           setPreferredSize( endLineNumber );
} Thanks for your time . . .
The_Developer

Here's what I use. It behaves correctly WRT wrapped lines, and should work equally well with a JTextArea or a JTextPane.
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Rectangle;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import javax.swing.BorderFactory;
import javax.swing.JComponent;
import javax.swing.SizeSequence;
import javax.swing.UIManager;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.text.BadLocationException;
import javax.swing.text.Document;
import javax.swing.text.Element;
import javax.swing.text.JTextComponent;
* LineNumberView is a simple line-number gutter that works correctly
* even when lines are wrapped in the associated text component. This
* is meant to be used as the RowHeaderView in a JScrollPane that
* contains the associated text component. Example usage:
*<pre>
*   JTextArea ta = new JTextArea();
*   ta.setLineWrap(true);
*   ta.setWrapStyleWord(true);
*   JScrollPane sp = new JScrollPane(ta);
*   sp.setRowHeaderView(new LineNumberView(ta));
*</pre>
* @author Alan Moore
public class LineNumberView extends JComponent
// This is for the border to the right of the line numbers.
// There's probably a UIDefaults value that could be used for this.
private static final Color BORDER_COLOR = Color.GRAY;
private static final int WIDTH_TEMPLATE = 99999;
private static final int MARGIN = 5;
private FontMetrics viewFontMetrics;
private int maxNumberWidth;
private int componentWidth;
private int textTopInset;
private int textFontAscent;
private int textFontHeight;
private JTextComponent text;
private SizeSequence sizes;
private int startLine = 0;
private boolean structureChanged = true;
   * Construct a LineNumberView and attach it to the given text component.
   * The LineNumberView will listen for certain kinds of events from the
   * text component and update itself accordingly.
   * @param startLine the line that changed, if there's only one
   * @param structureChanged if <tt>true</tt>, ignore the line number and
   *     update all the line heights.
public LineNumberView(JTextComponent text)
    if (text == null)
      throw new IllegalArgumentException("Text component cannot be null");
    this.text = text;
    updateCachedMetrics();
    UpdateHandler handler = new UpdateHandler();
    text.getDocument().addDocumentListener(handler);
    text.addPropertyChangeListener(handler);
    text.addComponentListener(handler);
    setBorder(BorderFactory.createMatteBorder(0, 0, 0, 1, BORDER_COLOR));
   * Schedule a repaint because one or more line heights may have changed.
   * @param startLine the line that changed, if there's only one
   * @param structureChanged if <tt>true</tt>, ignore the line number and
   *     update all the line heights.
private void viewChanged(int startLine, boolean structureChanged)
    this.startLine = startLine;
    this.structureChanged = structureChanged;
    revalidate();
    repaint();
/** Update the line heights as needed. */
private void updateSizes()
    if (startLine < 0)
      return;
    if (structureChanged)
      int count = getAdjustedLineCount();
      sizes = new SizeSequence(count);
      for (int i = 0; i < count; i++)
        sizes.setSize(i, getLineHeight(i));
      structureChanged = false;
    else
      sizes.setSize(startLine, getLineHeight(startLine));
    startLine = -1;
/* Copied from javax.swing.text.PlainDocument */
private int getAdjustedLineCount()
    // There is an implicit break being modeled at the end of the
    // document to deal with boundary conditions at the end. This
    // is not desired in the line count, so we detect it and remove
    // its effect if throwing off the count.
    Element map = text.getDocument().getDefaultRootElement();
    int n = map.getElementCount();
    Element lastLine = map.getElement(n - 1);
    if ((lastLine.getEndOffset() - lastLine.getStartOffset()) > 1)
      return n;
    return n - 1;
   * Get the height of a line from the JTextComponent.
   * @param index the line number
   * @param the height, in pixels
private int getLineHeight(int index)
    int lastPos = sizes.getPosition(index) + textTopInset;
    int height = textFontHeight;
    try
      Element map = text.getDocument().getDefaultRootElement();
      int lastChar = map.getElement(index).getEndOffset() - 1;
      Rectangle r = text.modelToView(lastChar);
      height = (r.y - lastPos) + r.height;
    catch (BadLocationException ex)
      ex.printStackTrace();
    return height;
   * Cache some values that are used a lot in painting or size
   * calculations. Also ensures that the line-number font is not
   * larger than the text component's font (by point-size, anyway).
private void updateCachedMetrics()
    Font textFont = text.getFont();
    FontMetrics fm = getFontMetrics(textFont);
    textFontHeight = fm.getHeight();
    textFontAscent = fm.getAscent();
    textTopInset = text.getInsets().top;
    Font viewFont = getFont();
    boolean changed = false;
    if (viewFont == null)
      viewFont = UIManager.getFont("Label.font");
      changed = true;
    if (viewFont.getSize() > textFont.getSize())
      viewFont = viewFont.deriveFont(textFont.getSize2D());
      changed = true;
    viewFontMetrics = getFontMetrics(viewFont);
    maxNumberWidth = viewFontMetrics.stringWidth(String.valueOf(WIDTH_TEMPLATE));
    componentWidth = 2 * MARGIN + maxNumberWidth;
    if (changed)
      super.setFont(viewFont);
public Dimension getPreferredSize()
    return new Dimension(componentWidth, text.getHeight());
public void setFont(Font font)
    super.setFont(font);
    updateCachedMetrics();
public void paintComponent(Graphics g)
    updateSizes();
    Rectangle clip = g.getClipBounds();
    g.setColor(getBackground());
    g.fillRect(clip.x, clip.y, clip.width, clip.height);
    g.setColor(getForeground());
    int base = clip.y - textTopInset;
    int first = sizes.getIndex(base);
    int last = sizes.getIndex(base + clip.height);
    String text = "";
    for (int i = first; i <= last; i++)
      text = String.valueOf(i+1);
      int x = MARGIN + maxNumberWidth - viewFontMetrics.stringWidth(text);
      int y = sizes.getPosition(i) + textFontAscent + textTopInset;
      g.drawString(text, x, y);
class UpdateHandler extends ComponentAdapter
      implements PropertyChangeListener, DocumentListener
     * The text component was resized. 'Nuff said.
    public void componentResized(ComponentEvent evt)
      viewChanged(0, true);
     * A bound property was changed on the text component. Properties
     * like the font, border, and tab size affect the layout of the
     * whole document, so we invalidate all the line heights here.
    public void propertyChange(PropertyChangeEvent evt)
      Object oldValue = evt.getOldValue();
      Object newValue = evt.getNewValue();
      String propertyName = evt.getPropertyName();
      if ("document".equals(propertyName))
        if (oldValue != null && oldValue instanceof Document)
          ((Document)oldValue).removeDocumentListener(this);
        if (newValue != null && newValue instanceof Document)
          ((Document)newValue).addDocumentListener(this);
      updateCachedMetrics();
      viewChanged(0, true);
     * Text was inserted into the document.
    public void insertUpdate(DocumentEvent evt)
      update(evt);
     * Text was removed from the document.
    public void removeUpdate(DocumentEvent evt)
      update(evt);
     * Text attributes were changed. In a source-code editor based on
     * StyledDocument, attribute changes should be applied automatically
     * in response to inserts and removals. Since we're already
     * listening for those, this method should be redundant, but YMMV.
    public void changedUpdate(DocumentEvent evt)
//      update(evt);
     * If the edit was confined to a single line, invalidate that
     * line's height. Otherwise, invalidate them all.
    private void update(DocumentEvent evt)
      Element map = text.getDocument().getDefaultRootElement();
      int line = map.getElementIndex(evt.getOffset());
      DocumentEvent.ElementChange ec = evt.getChange(map);
      viewChanged(line, ec != null);
}

How to print continue Line Numbers in PLD Differen repetitve areas.

Hi,
We need to print line numbers continues in different Repetitive areas.
Ex. Repetitve Area 0 we have item Discriptions
      Repetitve Area Footer1 we created sotvalue() here it will display servicetaxes
      Repetitve Area Footer1 we created one text roundoff
we need output like
Ex:1. Dell        **Repetitve Area 0****
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      4.servicetax   **Repetitve Area Footer1****
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for above all we need to print Line numbers sequence how we can print sequence numbers for differen areas.if i assigned Linenum( ) in Repetitve Area 0 it will display one for Repetitve Area 0 only.and i applied Gouplinenum also it's not printing. please guide me how to print this.
regds,
sampath kumar devunuri.

Hi,clint pow.
Please we did what you said but we are not retreiving data.please tell me how we can get serieal numbers for different repetitve areas.
regds,
sampath.

How can I put line number into JTextPane?

Most editors has ability that shows line numbers begining of each lines.
The line number doesn't effect any content in the editor, however.
I'm using JTextPane for editor, and I want to show line number for each line.
How can I do this?

have a look at
http://forum.java.sun.com/thread.jsp?forum=57&thread=258176
?

Displaying row numbers in tables

Is there a way to get JTable to display row numbers on the left-most side of the table? Are there any functions in JTable that will allow you to do this?
I am thinking that to do this, I will probably need to add a column to my table model and make the first column and uneditable JLabel that shows the row number.
Thanks for any help.
Mike Ryan

Ok , the class i am pulling this code from is 500+ lines of code, so I will try to pull out only the important pieces.
private DefaultTableModel theNorthernModel;
private JTable theNorthernTable;
private DefaultTableCellRenderer[] theRenderer;
private JScrollPane theNorthernPane;
private Object[] rowTitles = {"1", "2", "3", "4", "5", "6", "7"};//
private Object[] colTitles = {"one","two","three","four","five","six"};
     theNorthernModel = new DefaultTableModel(rowTitles.length,colTitles.length);
          theNorthernTable = new JTable(theNorthernModel);
          theNorthernTable.setCellSelectionEnabled(false);
          theNorthernTable.setEnabled(false);
          theNorthernTable.getTableHeader().setReorderingAllowed(false);
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          theNorthernPane.setPreferredSize(new Dimension(600, 150));
//this is the stuff you want
ListModel listModel = new AbstractListModel() {
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                     return rowTitles.length;
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                 return rowTitles[index];
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        rowHeader1.setBackground(theNorthernPane.getBackground());
        rowHeader1.setFixedCellWidth(140);
        theNorthernPane.setViewportView(theNorthernTable);
        theNorthernPane.setRowHeaderView(rowHeader1);
        rowHeader1.setCellRenderer(new RowHeaderRenderer(theNorthernTable));
theRenderer = new DefaultTableCellRenderer[6];
          for(int i = 0; i< 6; i++) {
               theRenderer[i] = new DefaultTableCellRenderer();
theColumnModel = (DefaultTableColumnModel)theNorthernTable.getColumnModel();
* RowHeaderRenderer renders the panel's rows
class RowHeaderRenderer extends JLabel implements ListCellRenderer {
     * Constructor creates all cells the same
     * To change look for individual cells put code in
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    RowHeaderRenderer(JTable table) {
        JTableHeader header = table.getTableHeader();
        setOpaque(true);
        setBorder(UIManager.getBorder("TableHeader.cellBorder"));
        setHorizontalAlignment(CENTER);
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        setBackground(header.getBackground());
        setFont(header.getFont());
     * Returns the JLabel after setting the text of the cell
    public Component getListCellRendererComponent( JList list,
    Object value, int index, boolean isSelected, boolean cellHasFocus) {
        setText((value == null) ? "" : value.toString());
        return this;
}

Line numbers related to order number

hi,
the requirement is , i have two parameters order number and line number.
i want to display the line numbers related to that particular order number while
submitting the request from srs window.
so first i created table value set for order num.
and for line number value set i mentioned oe_order_lines_all ool,
oe_order_lines_all ool in table name field and ool.line number in column field
and in where/order by field i had mentioned like
where ool.header_id=ooh.header_id
and ooh.order_number=:$FLEX$.order_num_value_set.
value set is created but while submitting the request by clicking the line number
field it is giving error.
can u plz give any solution.

.. or dense_rank() ? :
SELECT line_id,
          line_number
       || '.'
       || DENSE_RANK () OVER (PARTITION BY header_id ORDER BY header_id)
                                                                  line_number
FROM oe_order_lines_all
WHERE header_id = 6250

Displaying line numbers in JTextPane?

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