JTextPane and Paragraphs

Hello
I'm using JTextPane with an instance of DefaultStyledDocument. Now I have to add Paragraphes with code (not user input) but I haven't found any way to do it. Can anyone help?
Thanxs
Leander Eyer

Try using this method
protected void insertUpdate(AbstractDocument.DefaultDocumentEvent chng,
AttributeSet attr)Updates document structure as a result of text insertion. This will happen within a write lock. This implementation simply parses the inserted content for line breaks and builds up a set of instructions for the element buffer.

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Problem with JTextPane and StateInvariantError

Hi. I am having a problem with JTextPanes and changing only certain text to bold. I am writing a chat program and would like to allow users to make certain text in their entries bold. The best way I can think of to do this is to add and tags to the beginning and end of any text that is to be bold. When the other client receives the message, the program will take out all of the and tags and display any text between them as bold (or italic with and ). I've searched the forums a lot and figured out several ways to make the text bold, and several ways to determine which text is bold before sending the text, but none that work together. Currently, I add the bold tags with this code: (note: messageDoc is a StyledDocument and messageText is a JTextPane)
public String getMessageText() {
 String text = null;
 boolean bold = false, italic = false;
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Swing related questions should be posted in the Swing forum.
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There is no need to write custom code for a Bold Action you can just use:
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Obnoxious JTextPane and JScrollPane problem.

I have written a Tailing program. All works great except for one really annoying issue with my JScollPane. I will do my best to explain the problem:
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JTextPane and Horizontal Scrollbars

Hi there,
I had written an app that included an Event Log, and all was good in my
world.
Then one of the app users commented they would like errors to stand out within the log!
I said "No Problem" but it turns out to be a major bloody headache!!!!!
I was using a JTextArea but after reading some posts on this forum I decided to use a JTextPane. I found some code for changing the font colour, and everything appeared to be working fine ;-)
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Is there a way to get the Horizontal scroll bar working in a JTextPane?
Is there an alternative to JTextPane that will allow me to control font colour by line?
Do you even know what I am harping on about?
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Hi!
just wondered if you've searched the forum already. If not: always do that before posting.
I searched and found this helpful:
http://forum&threadID=256602
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 public boolean getScrollableTracksViewportWidth() {
 return wrapState;
 public void setLineWrap(boolean wrap) {
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 public boolean getLineWrap(boolean wrap) {
 return wrapState;
} now you can use JTextWrapPane instead of JTextPane:
// instead of private JTextPane jtpLog = new JTextPane( sdLog );
 private JTextWrapPane jtpLog = new JTextWrapPane( sdLog );and set JTextWrapPane.setLineWrap(false):
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How to identify line and paragraph breaks on word enumeration

Hi,
I am using PDWordFinder to extract text from the PDF document and then enumerate each word.
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I have successfully used SENTENCE and PARAGRAPH special groups and the WITHIN operator to search for terms contained within the same sentence and/or paragraph. However, I also need to search for terms that are located within a variable number of sentences or paragraphs of each other. For example, I could search for the term 'dog' and the 'cat' located within 3 sentences of each other. Is this possible in Oracle Text? I have searched the documentation and I can only find the 'near' operator for searching based on word proximity. I cannot find any mention of sentence or paragraph proximity. This is a very important requirement for the system.

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Feature request: Heading Tags and Paragraph Tags for Text element

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Improve the implementation of graphic and paragraph styles

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Same thing happening here.
You can though first create some type with a 12 point stroke , then define a new paragraph style, and even though it says 10pt will apply 12pt.
If you have not looked into graphic styles, that might be a better option for stokes. You can
Move the fill on top of the stroke (allows you to use a different color for stroke, so the orignal sahep of type doe not get squeezed)
Use multiple strokes aroudn type
Set the corner options to round
For appearance & graphic style, the secret to type is to first set your type fill and stroke to none (this removes the stylization at the character level), then apply strokes and fills in the appearance palette at the type level only. This way the stylization won't fight with each other.

JTextPane and highlighting

Hello!
Here's what I'm trying to do: I have a window that needs to display String data which is constantly being pumped in from a background thread. Each String that comes in represents either "sent" or "recieved" data. The customer wants to see sent and recieved data together, but needs a way to differentiate between them. Since the Strings are being concatinated together into a JTextPane, I need to highlight the background of each String with a color that represents whether it is "sent" (red) or "recieved" (blue) data. Should be easy right? Well, not really...
Before I describe the problem I'm having, here is a small example of my highlighting code for reference:
     private DefaultStyledDocument doc = new DefaultStyledDocument();
     private JTextPane txtTest = new JTextPane(doc);
     private Random random = new Random();
     private void appendLong() throws BadLocationException {
          String str = "00 A9 10 20 20 50 10 39 69 FF F9 00 20 11 99 33 00 6E ";
          int start = doc.getLength();
          doc.insertString(doc.getLength(), str, null);
          int end = doc.getLength();
          txtTest.getHighlighter().addHighlight(start, end, new DefaultHighlighter.DefaultHighlightPainter(randomColor()));
     private Color randomColor() {
          int r = intRand(0, 255);
          int g = intRand(0, 255);
          int b = intRand(0, 255);
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     private int intRand(int low, int hi) {
          return random.nextInt(hi - low + 1) + low;
     }As you can see, what I'm trying to do is append a String to the JTextPane and highlight the new String with a random color (for testing). But this code doesn't work as expected. The first String works great, but every subsequent String I append seems to inherit the same highlight color as the first one. So with this code the entire document contents will be highlighted with the same color.
I can fix this problem by changing the insert line to this:
doc.insertString(doc.getLength()+1, str, null);With that change in place, every new String gets its own color and it all works great - except that now there's a newline character at the beginning of the document which creates a blank line at the top of the JTextPane and makes it look like I didn't process some of the incomming data.
I've tried in veign to hack that newline character away. For example:
          if (doc.getLength() == 0) {
               doc.insertString(doc.getLength(), str, null);
          } else {
               doc.insertString(doc.getLength()+1, str, null);
          } But that causes the 2nd String to begin on a whole new line, instead of continuing on the first line like it should. All the subsequent appends work good though.
I've also tried:
txtTest.setText(txtTest.getText()+str);That makes all the text line up correctly, but then all the previous highlighting is lost. The only String that's ever highlighted is the last one.
I'm getting close to submitting a bug report on this, but I should see if anyone here can help first. Any ideas are much appreciated!

It may work but it is nowhere near the correct
solution.It seems to me the "correct" solution would be for Sun to fix the issue, because it seems they are secretly inserting a newline character into my Document. Here's a compilable program that shows what I mean:
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.Random;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextPane;
import javax.swing.text.BadLocationException;
import javax.swing.text.DefaultHighlighter;
import javax.swing.text.DefaultStyledDocument;
public class TestFrame extends JFrame {
     private JButton btnAppend = new JButton("Append");
     private DefaultStyledDocument doc = new DefaultStyledDocument();
     private JTextPane txtPane = new JTextPane(doc);
     private Random random = new Random();
     public TestFrame() {
          setSize(640, 480);
          setLocationRelativeTo(null);
          addWindowListener(new WindowAdapter() {
               public void windowClosing(WindowEvent e) {
                    dispose();
          getContentPane().add(new JScrollPane(txtPane), BorderLayout.CENTER);
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          btnAppend.addActionListener(new ActionListener() {
               public void actionPerformed(ActionEvent e) {
                    doBtnAppend();
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          try {
               String str = "00 A9 10 20 20 50 10 39 69 FF F9 00 20 11 99 33 00 6E ";
               int start = doc.getLength();
                * This line causes all highlights to have the same color,
                * but the text correctly starts on the first line.
               doc.insertString(doc.getLength(), str, null);
                * This line causes all highlights to have the correct
                * (different) colors, but the text incorrectly starts
                * on the 2nd line.
//               doc.insertString(doc.getLength()+1, str, null);
                * This if/else solution causes the 2nd appended text to
                * incorrectly start on the 2nd line, instead of being
                * concatinated with the existing text on the first line.
                * (a newline character is somehow inserted after the first
                * line)
//               if (doc.getLength() == 0) {
//                    doc.insertString(doc.getLength(), str, null);
//               } else {
//                    doc.insertString(doc.getLength()+1, str, null);
               int end = doc.getLength();
               txtPane.getHighlighter().addHighlight(start, end, new DefaultHighlighter.DefaultHighlightPainter(randomColor()));
          } catch (BadLocationException e) {
               e.printStackTrace();
     public static void main(String[] args) {
          EventQueue.invokeLater(new Runnable() {
               public void run() {
                    new TestFrame().setVisible(true);
     private Color randomColor() { return new Color(intRand(0, 255), intRand(0, 255), intRand(0, 255)); }
     private int intRand(int low, int high) { return random.nextInt(high - low + 1) + low; }
}Try each of the document insert lines in the doBtnAppend method and watch what it does. (comment out the other 2 of course)
It wastes resources and is inefficient. A lot of work
goes on behind the scenes to create and populate a
Document.I tracked the start and end times in a thread loop to benchmark it, and most of the time the difference is 0 ms. When the document gets to about 7000 characters I start seeing delays on the order of 60 ms, but I'm stripping off text from the beginning to limit the max size to 10000. It might be worse on slower computers, but without a "correct" and working solution it's the best I can come up with. =)

Forced Line Break and Paragraph Return

Hi.. It´s maybe a simple question but I cannot see diferences.
What´s the difference between Forced Line Break and Paragraph Return ?
Thank's for the answer

A force line break is still the same paragraph. You won't see a difference unless there is some text change with each new paragraph, such as a style change or the addition of space before or after a paragraph. The forced line break can also be used as a trigger in a nested style to make the first line or lines formatting for a paragraph different from the following lines.
Peter

JTextPane HTMLDocument to string missing lines \n and paragraphs

I have a JTexpane using an HTMLDocument and I use this function to save the content into a String
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so when I set it again to de JTexpeane al the text turns into a single line
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 System.out.println(ex.toString());
 }Edit:
I have a "simple solution" Straiting the body from the String "ret" and changing \n for 
but there must be a better way ...
Edited by: Harl on Dec 12, 2007 9:56 AM
Edited by: Harl on Dec 12, 2007 9:58 AM

That return the same thing.
Now I have "good" solution:
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Line spacing in Pages 5.1 does not seem to be incremental any more and I cannot see how to adjust paragraph spacing at all. Any suggestions?? This is on a Mac using the

Thanks.
It is a layout problem that seems to be affecting most users.
There, but overlooked.
Hope the Apple programmers are paying attention.
I am really curious why they seem to be doing no independent testing and checking. At least none that shows.
Peter

Word wrapping with JTextPane and styleDocument

Hello,
Can someone help me with the following problem.
I have a JTextPane where i add a styledDocument.
If i fill this with text it doen't word-warp the text!
import javax.swing.JTextPane;
import javax.swing.text.BadLocationException;
import javax.swing.text.Style;
import javax.swing.text.StyledDocument;
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Since you are simply appending text to the Document you should not be using a type of "text/html".
If you need further help then you need to create a [Short, Self Contained, Compilable and Executable, Example Program (SSCCE)|http://homepage1.nifty.com/algafield/sscce.html], that demonstrates the incorrect behaviour.

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I've written a little application that involves saving and loading styled text in a JTextPane. Bold and italic styled text survives the loading/saving process but subscripts always revert to the regular style.
To test this further, I created a document with bold, italic and subscript styled text in MS Word, saved it as RTF and then loaded it into my JTextPane. I got the same result as above: my subscripts were lost, but bold and italic survived.
Is this a bug? If so any news of it being known or fixed?
thanks,
McN

Swing's RTFEditorKit only supports an early release of the RTF specification -- maybe somewhere along 1.1. Microsoft has updated the spec with each new version of Word, so that I think the XP version is something around 1.6 or 1.7. The most common behavior of the current Swing RTFEditorKit is to ignore those extra features it doesn't recognize, like subscripts, tables, images, etc. I have occasionally had it produce a null value as well...giving me fits.

JTextPane and Paragraphs

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