Word wrap on JTextArea

Dear all,
I have a created a little GUI with a menu. I can select from menu to load a text file and display it on the JTextArea. Is it possible to do "word wrap" on the JTextArea instead of having a schroller???
thx in advance
vxc

setLineWrap(true);
setWrapStyleWord(true);

Similar Messages

Word wrap in JTextArea

Dear all,
I have a created a little GUI with a menu. I can select from menu to load a text file and display it on the JTextArea. Is it possible to do "word wrap" on the JTextArea instead of having a schroller???
thx in advance
vxc

Certainly,
          // limit the area's width - or rely on the layout manager to do this
          JTextArea txt = new JTextArea(10, 20);
          // set it to word wrap without breaking individual words
          txt.setLineWrap(true);
          txt.setWrapStyleWord(true);Dom.

JTextArea word wrapping

I know I can use a method to word wrap a JTextArea, but is there any simple way so that word wrapping does not cut words in half in order to fit?
In other words, the current word wrapping will break a word at any position once the max line length has been met, so a word like "extension" may be broken up into "exte" and "nsion" on the next line.

Straight from the API:
setWrapStyleWord(...);

Styled document with word wrap

Hi,
I need a text component which I can style the text and have word wrapping. I am currently using JEditorPane and HTML to do necessary styling but there is no word wrapping. JTextArea does word wrapping but no styling.
any ideas?
thanks.

do you have a solution? I gave you a hint to the solution. You guessed what the answer was. I don't understand what problem you are having.
If you need further help then you need to create a [url http://homepage1.nifty.com/algafield/sscce.html]Short, Self Contained, Compilable and Executable, Example Program (SSCCE) that demonstrates the incorrect behaviour, because I can't guess exactly what you are doing based on the information provided.
And don't forget to use the [url http://forum.java.sun.com/help.jspa?sec=formatting]Code Formatting Tags so the code retains its original formatting.

JTextArea Word Wrap Frustrations

Howdy.
I am developping with Borland JBuilder 2. Each time I try to use the method JTextArea.setWrapStyleWord(true) I get this error:
Error: (70) method setWrapStyleWord(boolean) not found in class com.sun.java.swing.JTextArea.
Any suggestions? Do I need a newer version of the Swing classes? My setLineWrap(true) method works perfectly. Is there any other way to do word wrapping on a JTextArea in a JScrollPane?
Thanks much!
~Matt

set the wrap style for te specific object you created,
don't try to set it for the class itself. (i.e.
JTextArea.setWrapStyleWord(true))I don't really think that zhentilar5 tried to do what you he did. Besides the error message would be a BIT different, wouldn't it? This is not a static method.
zhentilar5 I believe that there is a compatibility issue here indeed. According to my best recollection, I cannot remember what version you need... :) Try to use the setLineWrap(boolean) instead.
Hope that helped.
afotoglidis

JTextArea failing proper word wrap within JList

A JTextArea is inserted into a JScrollPane which is being rendered in a JList. Each of these JTextAreas render correctly, except the text within them does not word wrap around the whitespace.
Example, instead of seeing
|Testing 1 2 3    |
|testing.         |
------------------we are seeing:
|Testing 1 2 3 tes|
|ting.            |
------------------I'm aware the JTextArea component may not have a chance to validate properly, since it isn't visible until it is drawn into the JList. (Note: lineWrap on the JTextArea is set to true).
Is there anything I can do to correct this? Or am I wrong about the cause and there's another solution?

I think you're looking for
JTextArea.setWrapStyleWord(true);
Normally I'd yell at you to read the API, but I
remember having a
hard time finding that one myself. :)Looking at the link camickr posted, I saw that in some example code and immediately checked it out. Tried it in my code, and it works.
I'm a big advocate on the API myself, shame on me for missing it! (Glad I'm not the only one tho)

Resizing ListCellRenderers using JTextArea and word wrap

Hi,
I'm trying to create a ListCellRenderer to draw nice cells for a JList. Each cell has a one line title and a description of variable length. So, I create a custom ListCellRenderer, which consists of a JPanel containing a JLabel for the title and a JTextArea for the description. I set the JTextArea to do wrapping on word boundried and it all almost works.
But, the list cells don't resize to accomodate the variable height of the cells. They show only 1 line for the title and 1 line for the description.
I have seen a few threads relating to this including the article, "Multi-line cells in JTable in JDK 1.4+" in the Java Specialists' Newsletter, which seems to do a similar trick for JTables. But so far nothing I've tried works.
Curiously, using println debugging, my getListCellRenderer method seems to get called for each cell twice while my GUI is being drawn. It looks to me like the TextUI view that draws the JTextArea seems to do the word wrapping after the first set of getListCellRenderer calls. But, it's the first set of calls that seems to establish the layout of the list.
Any help would be appreciated. I've pulled out quite enough hair over this one.
-chris
package bogus;
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Font;
import java.util.ArrayList;
import java.util.List;
import javax.swing.*;
public class CellRendererTest {
     public static void main(String[] args) {
          final CellRendererTest test = new CellRendererTest();
          SwingUtilities.invokeLater(new Runnable() {
               public void run() {
                    test.createGui();
     public void createGui() {
          JFrame frame = new JFrame("Testing Bogus ListCellRenderer");
          JList list = new JList(createBogusListItems());
          list.setCellRenderer(new MyListCellRenderer());
          frame.add(list);
          frame.setSize(200, 400);
          frame.setVisible(true);
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
     private MyListItem[] createBogusListItems() {
          List<MyListItem> items = new ArrayList<MyListItem>();
          items.add(new MyListItem("First item", "This is a nice short description."));
          items.add(new MyListItem("Another one", "This is a longer description which might take up a couple of lines."));
          items.add(new MyListItem("Next one", "This is a ridiculously long description which is total gibberish." +
                    "Blah blah blabber jabber goo. Blither blather bonk. Oink boggle gaggle ker-plunk."));
          items.add(new MyListItem("No Desc", null));
          items.add(new MyListItem("Last one", "Boink!"));
          return items.toArray(new MyListItem[items.size()]);
     static class MyListCellRenderer extends JPanel implements ListCellRenderer {
          private JLabel title;
          private JTextArea desc;
          // hack to see if this is even possible
          private static int[] rows = {1, 2, 3, 0, 1};
          public MyListCellRenderer() {
               setLayout(new BorderLayout());
               setBorder(BorderFactory.createEmptyBorder(6, 4, 6, 4));
               setOpaque(true);
               title = new JLabel();
               title.setFont(new Font("Arial", Font.ITALIC | Font.BOLD, 11));
               add(title, BorderLayout.NORTH);
               desc = new JTextArea();
               desc.setFont(new Font("Arial", Font.PLAIN, 9));
               desc.setOpaque(false);
               desc.setWrapStyleWord(true);
               desc.setLineWrap(true);
               add(desc, BorderLayout.CENTER);
          public Component getListCellRendererComponent(JList list, Object value,
                    int index, boolean isSelected, boolean cellHasFocus) {
               MyListItem item = (MyListItem)value;
               title.setText(item.title);
               if (item.description != null && item.description.length() > 0) {
                    desc.setText(item.description);
                    desc.setVisible(true);
               else {
                    desc.setVisible(false);
               // uncomment next line to to somewhat simulate the effect I want (hacked using the rows array)
               // desc.setRows(rows[index]);
               if (isSelected) {
                    setBackground(list.getSelectionBackground());
                    setForeground(list.getSelectionForeground());
               else {
                    setBackground(list.getBackground());
                    setForeground(list.getForeground());
               return this;
     static class MyListItem {
          String title;
          String description;
          public MyListItem(String title, String description) {
               this.title = title;
               this.description = description;
}

This seems to work
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Insets;
import java.util.ArrayList;
import java.util.List;
import javax.swing.*;
import javax.swing.text.View;
public class CellRendererTest {
     int WIDTH = 220;
     public static void main(String[] args) {
          final CellRendererTest test = new CellRendererTest();
          SwingUtilities.invokeLater(new Runnable() {
               public void run() {
                    test.createGui();
     public void createGui() {
          JFrame frame = new JFrame("Testing Bogus ListCellRenderer");
          JList list = new JList(createBogusListItems());
          final MyListCellRenderer renderer = new MyListCellRenderer();
          list.setCellRenderer( renderer );
          JScrollPane listScrollPane = new JScrollPane(list);
          frame.add(listScrollPane);
          frame.setSize(WIDTH, 400);
          frame.setVisible(true);
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
     private MyListItem[] createBogusListItems() {
          List<MyListItem> items = new ArrayList<MyListItem>();
          items.add(new MyListItem("First item", "This is a nice short description."));
          items.add(new MyListItem("Another one", "This is a longer description which might take up a couple of lines."));
          items.add(new MyListItem("Next one", "This is a ridiculously long description which is total gibberish." +
                    "Blah blah blabber jabber goo. Blither blather bonk. Oink boggle gaggle ker-plunk."));
          items.add(new MyListItem("No Desc", null));
          items.add(new MyListItem("Last one", "Boink!"));
          items.add(new MyListItem("Ooops this one breaks things by being longer than my fixed width", "Blabber babble gibber flipper flop."));
          return items.toArray(new MyListItem[items.size()]);
     static class MyListCellRenderer extends JPanel implements ListCellRenderer {
          public JLabel title;
          public JTextArea desc;
          Color altColor = new Color(0xeeeeee);
          public MyListCellRenderer() {
               setLayout(new BorderLayout());
               setBorder(BorderFactory.createEmptyBorder(6, 4, 6, 4));
               setOpaque(true);
               title = new JLabel();
               title.setFont(new Font("Arial", Font.ITALIC | Font.BOLD, 11));
               add(title, BorderLayout.NORTH);
               desc = new JTextArea();
               desc.setFont(new Font("Arial", Font.PLAIN, 9));
               desc.setOpaque(false);
               desc.setWrapStyleWord(true);
               desc.setLineWrap(true);
               add(desc, BorderLayout.CENTER);
          public Component getListCellRendererComponent(JList list, Object value,
                    int index, boolean isSelected, boolean cellHasFocus) {
               Insets insets = desc.getInsets();
            int rendererLeftRightInsets = insets.left + insets.right + 8; // 8 from panel border
            int topDownInsets = insets.top + insets.bottom;
            int listWidth = list.getWidth();
            int viewWidth = listWidth;
               int scrollPaneLeftRightInsets = 0;
               JScrollPane scroll = (JScrollPane) SwingUtilities.getAncestorOfClass( JScrollPane.class, list );
               if ( scroll != null && scroll.getViewport().getView() == list ) {
                    Insets scrollPaneInsets = scroll.getBorder().getBorderInsets(scroll);
                 scrollPaneLeftRightInsets = scrollPaneInsets.left + scrollPaneInsets.right;
                 listWidth = scroll.getWidth() - scrollPaneLeftRightInsets;
                 JScrollBar verticalScrollBar = scroll.getVerticalScrollBar();
                 if (verticalScrollBar.isShowing()) {
                     listWidth -= verticalScrollBar.getWidth();
                 viewWidth = listWidth - rendererLeftRightInsets;
               MyListItem item = (MyListItem)value;
               title.setText(item.title);
               if (item.description != null && item.description.length() > 0) {
                    desc.setText(item.description);
                    desc.setVisible(true);
                    View rootView = desc.getUI().getRootView(desc);
                 rootView.setSize( viewWidth, Float.MAX_VALUE );
                float yAxisSpan = rootView.getPreferredSpan(View.Y_AXIS);
                    Dimension preferredSize = new Dimension( viewWidth, (int)yAxisSpan + topDownInsets );
                    desc.setPreferredSize( preferredSize );
               } else {
                    desc.setVisible(false);
               title.setPreferredSize( new Dimension( viewWidth, title.getPreferredSize().height ) );
               // uncomment next line to to somewhat simulate the effect I want (hacked using the rows array)
               //desc.setRows(rows[index]);
               if (isSelected) {
                    setBackground(list.getSelectionBackground());
                    setForeground(list.getSelectionForeground());
               else {
                    if (index % 2 == 0)
                         setBackground(altColor);
                    else
                         setBackground(list.getBackground());
                    setForeground(list.getForeground());
               return this;
     static class MyListItem {
          String title;
          String description;
          public MyListItem(String title, String description) {
               this.title = title;
               this.description = description;
}

Force word wrap in JTextPane (using HTMLEditorKit)

Hi!
I have a JTextPane on a JScrollPane inside a JPanel. My text pane is using HTMLEditorKit.
I set the scrolling policies of my JScrollPane to: JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED & JScrollPane.HORIZONTAL_SCROLLBAR_NEVER.
I did not find in JTextPane�s API any relevant property I can control word-wrapping with (similar to JTextArea�s setLineWrap) and I have tried a few things to force word-wrapping but nothing worked...
What happens is my text is NOT being wrapped (even though there is no horizontal scrolling) and typed characters (it is an enabled editable text componenet) are being added to the same long line�
I�d like to force word-wrapping (always) using the vertical scroll bar whenever the texts extends for more then one (wrapped) line.
Any ideas?
Thanks!!
Message was edited by:
io1

Your suggestion of using the example only holds if it fits the requirements of the featureDid your questions state anywhere what your requirement was?
You first questions said you had a problem, so I gave you a solution
You next posting stated what your where currently doing, but it didn't say it was a requirement to do it that way. So again I suggested you change your code to match the working example.
Finally on your third posting you state you have some server related issues causing the requirement which I did not know about in my first two postings.
State your problem and special requirments up front so we don't waste time quessing.
I've used code like this and it wraps fine:
JTextPane textPane = new JTextPane();
textPane.setContentType( "text/html" );
HTMLEditorKit editorKit = (HTMLEditorKit)textPane.getEditorKit();
HTMLDocument doc = (HTMLDocument)textPane.getDocument();
textPane.setText( "<html><body>some long text ...</body></html>" );
JScrollPane scrollPane = new JScrollPane( textPane );If you need further help then you need to create a [url http://homepage1.nifty.com/algafield/sscce.html]Short, Self Contained, Compilable and Executable, Example Program (SSCCE) that demonstrates the incorrect behaviour, because I can't guess exactly what you are doing based on the information provided.
And don't forget to use the [url http://forum.java.sun.com/help.jspa?sec=formatting]Code Formatting Tags so the code retains its original formatting.

Word Wrapping JLabel

I'm having trouble getting JLabel's to word wrap. I've tried using html tags. Is there any way I ca do this? What I'm trying to do is read in from a file, get Questions and Answers, and display quesitons and answers to a JLabel using setText(). The dimensions are (400, 450) but even with html tags on the text I'm setting, it just runs right off the panel.
Any suggestions would be much appreciated.
Thanks,

Below is my JTextArea. As you can see I have it set for 2 rows and 40 col. When I run the program, it's still just one line of text straight off my panel.
Do you see anything I'm missing here?
            quesJTextArea = new JTextArea("",2,40);
            quesJTextArea.addMouseListener(this);
            quesJTextArea.setLineWrap(true);
            quesJTextArea.setWrapStyleWord(true);
            quesJTextArea.setEditable(false);
            quesJTextArea.setBackground(Color.gray);

JTextPane always word wrapping

I'm having problems convincing a JTextPane not to word wrap. My JTextPane is contained in a JScrollPane. I've looked and found out how to turn off word wrap in a JTextArea, and applied suggestions about turning horizontal scrollbars on, but it doesn't work. My JTextPane keeps wrapping text regardless of what I do to it. It seems to me that, since the JTextPane is more "sophisticated" than a JTextArea, I should be able to do this. Any suggestions?
Matt
�

Hi,
overwrite the following method in your JTextPane-subclass
public boolean getScrollableTracksViewportWidth() { return false; }this works, if you use the scrollbar-policies below - I use that in a mud-client, returning false if I want it not to wrap and returning true, if I want it to wrap.
I use the following on the JScrollPane, the JTextPane is in (assuming sp is your JScrollPane)
sp.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
sp.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);Hope, this helps
greetings Marsian

Word Wrap

Hi Guys
I neec to use word wrap in JTable cells but can't figure-out how to do it; can any of you help me?
Many thanks
Patrick

Many thanks for your replies.
The JTextArea works fine but the table rows do not resize when the columns are resized so we end-up with the text being displayed on a single line and a lot of white-space below. How can I get the table rows to resize to the height og the tallest cell?
Many thanks for your help.

Word wrap in JList

I was wondering if I can do a word wrap with JLists.
I have this so far.
JList pizza;
DefaultListModel listPizza;
JScrollPane scrollPizza;
listPizza = new DefaultListModel();
pizza = new JList(listPizza);
scrollPizza = new JScrollPane(pizza);
This will let me scroll horizontally if the text becomes longer than the screen, but I want it to wrap around the screen. I only want to it to scroll vertically.

In the future, swing questions should be posted in the swing forum.
If I recall correctly, you can do this by making a custom CellRenderer for your JList which uses a JTextArea to do the rendering. Search the swing forum or look at the sun java tutorial for custom renderers.

JLabel Word Wrap

I'm building a simple chat application to work on my network programming skills. I ran into an issue that I can't quite find a solution to.
I Have a JPanel inside of a JScrollPane, and inside of it JLabels with the messages received are added as they come. I would like the JLabels to wrap the text after it reaches a certain width. Here's the testing code I'm using for this:
import java.awt.*;
import javax.swing.*;
class ChatBody {
     public static Container createChatBody() {
          JPanel body = new JPanel(new GridBagLayout());
          GridBagConstraints c = new GridBagConstraints();
          c.fill = GridBagConstraints.BOTH;
          c.weightx = 1.0;
          c.weighty = 1.0;
          JPanel messages = new JPanel();
          JScrollPane messagesPane = new JScrollPane(messages);
          messagesPane.setPreferredSize(new Dimension(608, 478));
          messagesPane.setBorder(BorderFactory.createLineBorder(Color.black));
          messagesPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
          JLabel messageOne = new JLabel("This is a label that I'm going to make really long to test the wrapping abilities of a JLabel/JPanel/JScrollPane. This needs to be really long so it will reach the end of the scroll pane and *hopefully* wrap on it's own, so I won't have to do any work =D");
          messages.add(messageOne);
          c.gridx = 0;
          c.gridy = 0;
          body.add(messagesPane, c);
          return body;
}Please note I took some irrelevant code out.
Is there a method or something to make JLabels word wrap? Or will I have to be creative and make something up?
Edit: I don't know if this is relevant, but this is the class with the main() method:
import java.awt.*;
import javax.swing.*;
class JavaChat {
     public static void createChatWindow() {
          JFrame frame = new JFrame("Java Chat");
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          frame.setMinimumSize(new Dimension(800, 600));
          //frame.setJMenuBar();
          frame.getContentPane().add(ChatBody.createChatBody());
          frame.pack();
          frame.setVisible(true);
     public static void main(String args[]) {
          SwingUtilities.invokeLater(new Runnable() {
               public void run() {
                    createChatWindow();
}That's needed for anyone that needs to compile my code for some reason.
Edited by: shadowayex on Dec 24, 2009 1:47 PM

Wrapping is not support in a JLabel.
Most people would use either a JTextArea or JTextPane which do support wrapping.

Word wrap with JScrollPane

Quick question. Trying to get word wrap in a JTextField
using JSrollPane. Below is a small snippet of code
from my program...
displayArea = new JTextArea ( );
JScrollPane scroll = new JScrollPane ( displayArea,
   JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
   JScrollPane.HORIZONTAL_SCROLLBAR_NEVER); Doesn't using JScrollPane.HORIZONTAL_SCROLLBAR_NEVER automatically
introduce word wrap? I'm not getting it in my program. Somebody please correct me. Thanks!

displayArea.setLineWrap (true);
displayArea.setWrapStyleWord (true);I thought it wasn't added automatic.
Kind regards,
  Levi

Dynamically word wrap in a JLabel

I have several JLabels in a complex layout that has a JSplitter and is in a resizeable window.
I would like it if there isn't enough room for the text of the JLabel to fit on one line, but there is enough vertical room (there almost always is), for the JLabel to automatically word wrap, and become 2 or three line, as needed. (There are usually only 2 or three words in these JLabels.
I haven't found a way to do this. I know about putting HTML in the JLabel lets you put <BR>s in, but I would like the JLabel to be only one line if possible, going to two line if there isn't enough room to fit all the text on one line.
I searched this forum, and found a suggestion to use a JTextArea made up to look like a JLabel ( http://forum.java.sun.com/thread.jsp?forum=57&thread=399180 second reply from bottom ), but this has it's own problems. The JTextAreas, try to take up as much vertical space as possible instead of only as much space a necessary (as a JLable does) in the layout that I'm using.
Is there any way of doing this?

JLabel label = new JLabel();
label.setLayout new BorderLayout() ;
JTextPane pane = new JTextPane();
pane.setBackground(label.getBackground());
// or try making it opaque
pane.setText("long text here");
label.add(pane,BorderLayout.CENTER);The above still has the problem of wanting its preferred size to be calculated from the text layed out in one line. I was digged around in my Java2D folder and found some old code I wrote, based on something by J. Knudsen:
import java.awt.*;
import java.awt.font.*;
import java.text.*;
import javax.swing.*;
public class JMultilineLabel extends JComponent {
    private String text;
    private Insets margin = new Insets(5,5,5,5);
    private int maxWidth = Integer.MAX_VALUE;
    private boolean justify;
    private final FontRenderContext frc = new FontRenderContext(null, false, false);
    private void morph() {
        revalidate();
        repaint();
    public String getText() {
        return text;
    public void setText(String text) {
        String old = this.text;
        this.text = text;
        firePropertyChange("text", old, this.text);
        if ((old == null) ? text!=null : !old.equals(text))
            morph();
    public int getMaxWidth() {
        return maxWidth;
    public void setMaxWidth(int maxWidth) {
        if (maxWidth <= 0)
            throw new IllegalArgumentException();
        int old = this.maxWidth;
        this.maxWidth = maxWidth;
        firePropertyChange("maxWidth", old, this.maxWidth);
        if (old != this.maxWidth)
            morph();
    public boolean isJustified() {
        return justify;
    public void setJustified(boolean justify) {
        boolean old = this.justify;
        this.justify = justify;
        firePropertyChange("justified", old, this.justify);
        if (old != this.justify)
            repaint();
    public Dimension getPreferredSize() {
        return paintOrGetSize(null, getMaxWidth());
    public Dimension getMinimumSize() {
        return getPreferredSize();
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        paintOrGetSize((Graphics2D)g, getWidth());
    private Dimension paintOrGetSize(Graphics2D g, int width) {
        Insets insets = getInsets();
        width -= insets.left + insets.right + margin.left + margin.right;
        float w = insets.left + insets.right + margin.left + margin.right;
        float x = insets.left + margin.left, y=insets.top + margin.top;
        if (width > 0 && text != null && text.length() > 0) {
            AttributedString as = new AttributedString(getText());
            as.addAttribute(TextAttribute.FONT, getFont());
            AttributedCharacterIterator aci = as.getIterator();
            LineBreakMeasurer lbm = new LineBreakMeasurer(aci, frc);
            float max = 0;
            while (lbm.getPosition() < aci.getEndIndex()) {
                TextLayout textLayout = lbm.nextLayout(width);
                if (g != null && isJustified() && textLayout.getVisibleAdvance() > 0.80 * width)
                    textLayout = textLayout.getJustifiedLayout(width);
                if (g != null)
                    textLayout.draw(g, x, y + textLayout.getAscent());
                y += textLayout.getDescent() + textLayout.getLeading() + textLayout.getAscent();
                max = Math.max(max, textLayout.getVisibleAdvance());
            w += max;
        return new Dimension((int)Math.ceil(w), (int)Math.ceil(y) + insets.bottom + margin.bottom);

Word wrap on JTextArea

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