Where to learn swing text package
Hello.
I have been programming in java for a few year. I haven't made any real project (I am a college student). However, I have learnt lots of java stuff. I have used most of swing component. I even implements my own Renderer, Model, and Component. However I found it very hard to me to start learning about JTextPane and JEditorPane. I need to make my own TextPane to display text getting from my custom Object.
can anyone tell me place to learn about the JTextPane and its StyleDocuments and those stuffs. I found sun tutorial but did not help much. Thanks in advance.
Try this Sun's Java Swing Tutorial site:
http://java.sun.com/docs/books/tutorial/uiswing/index.html
Similar Messages
-
Using of javax.swing.text package
Where can I find any resources devoted to using javax.swing.text package?
At the end of the API documentation for that package you may notice this:
<quote>
Related Documentation
For overviews, tutorials, examples, guides, and tool documentation, please see:
Using Text Components, a section in The Java Tutorial.
</quote> -
Syntax Highlighting w/ Swing Text Package
I have a question for you that I hope ever so much that you could answer just in the most abstract sense, I will figure out the code from what you have said hopefully. Any relavent parts that you think I should know, please point out.
My question is, I'm trying to implement Syntax Highlighting for a code editor in Java (yes I know, like everyone else. It would REALLY be helpful if you did an updated Demo of a SyntaxEditor for JDK 1.4 BTW) anyway, I have already implemented Syntax Highlighting by overriding the PlainView and changing its drawLine method to parse the line, find the key words then draw them accordingly. However I cannot get over the sinking feeling that there is a better way to do this in JDK 1.4, I'm not worried about backward compatability. I'm only interested in the "sexiest" way to do this with Java. I started looking into the GlyphView, and that seems more of what I want, it has more control over the text elements and strong drawing abilities, I also noticed the GlyphPainter1 and GlyphPainter2, I tried to extend GlyphPainter2 and use it with my extended GlyphView and just change its paint method to parse the lines, but the class complains about not being public, even though in the source its class definition is "public class GlyphPainer2 extends GlyphView.GlyphPainter" which confused me.
But at any rate, my basic question is how would YOU, implement Syntax Highlighting (code coloring) if you could do it from scratch with all the facilities of the 1.4 JDK. ALso, should I look into the Java2D API or is this over kill for what I'm doing? I just need a basic code color'er, nothing fancy. But I need the fonts and styles to be able to change, that's all. And international support would be nice.
The type of answer I'm hoping for is something like "Create a new editor kit and then extend the GlyphView class and override its XYZ method to do your line parsing and then override the ABC method to do the actual painting of the line, this is the best way to do this in java"
Best wishes,
-rsk123I am searching for text highlighting code in java during 7 days.
And I also agree with Mr. rsk123 's thought.
I want to make editor to highlight code using java's general text package.
But I can't find good source or class to satisfy me.
Some code run well but it's not use the original java text package.
Some code was made by using java text package but have a bug and not run pefectly.
Now, I must choice a code for text highlighting.
But until now I can't find a free code or comecial code for it.
Anyway, I summarize my suffing result until now.
** I have stuied,
. About java's text package in Swing Connection site.
It's useful a little to understand the text package structure.
(http://java.sun.com/products/jfc/tsc/articles/index.html)
. How to make own EditorKit in 'Java Swing' book chapter 24.
I think it's good. But difficult to read.
(published by O'REILLY. Robert Eckstein)
** I have found program and have tested.
1) JEdit (http://www.jedit.org)
2) Jext(http://www.jext.org)
3) Sun's sample using the JavaEditorKit
(http://java.sun.com/products/jfc/tsc/articles/text/editor_kit/index.html)
4) Ostermiller's Syntax editor (http://ostermiller.org/syntax/editor.html)
5) j (http://armedbear-j.sourceforge.net/)
6) je 1.66 (http://mathsrv.ku-eichstaett.de/MGF/homes/grothmann/je/)
*** Detail descriptions of the test
1. May be run well but not use java text package.
==> JEdit (http://www.jedit.org), Jext(http://www.jext.org)
- I executed JEdit and Jext program. it works very well.
I think It's greate programs.
- The editor class for these programs are
org.gjt.sp.jedit.textarea.JEditTextArea class.
The JEditTextArea class extends JComponent, not java text component.
- JEditTextArea class started from 'jedit syntax package project'.
You can download the syntax package if you only use syntax highlighting
from http://syntax.jedit.org/ .
- JEdit and Jext use for editor 'jedit syntax package' but have upgrade that
package their own effort(may be)
- For me, It's an only product run well without error.
But unfortunately it's not use java text component.
So I hesitane to use it.
Because I should make almost code to support general editor function which
supported in JTextComponent.
2. Provided by Sun's developer site.
==> JavaEditorKit (http://java.sun.com/products/jfc/tsc/articles/text/editor_kit/index.html)
- It's made using JEditorPane. Great!!
And have a good architecture. (I think)
- But It use Scanner class which located in tools.jar package and
have a bug which not supporting well comment syntax /* */.
(Refer to http://developer.java.sun.com/developer/bugParade/bugs/4323090.html)
Futhermore it display terrible exception message when typed "/*" string
in the end position of java file. (I tested it)
- I heard in the forum, someone made the own scanner class.
(http://forum.java.sun.com/thread.jsp?thread=120564&forum=57&message=316083)
He said,(he = rofshi)
I wrote for my purposes a scanner based on the StreamTokenizer
cl*** and set a corresponding object in the JavaView cl*** of
the JavaKitTest.
Then I placed the method of my Scanner cl*** that parses the
given string and paints tokens in the method drawUnselected
Text (instead of previous code).
Of course, I erased all of the previous code related to the
java Scanner.
- For me, I like this style code and want to use it.
But Scanner class have some bug and I can't cure that bug. Terrible...
3. using JTextPane
==> http://ostermiller.org/syntax/editor.html
- At first it's too slow.
My computer is PentiumIII 350MHz Ram:256M Windows2000Por
But when I press pgDown key quickly the display couldn't follow it.
- And may be not support unicode.
When I typed international code, exceptions displayed.
(too much exceptios. may be caused repeating by thread.)
(ArrayIndexOutOfBoundsException in JavaLexer.java 1022 ?)
- For me, supporting international code is essential.
So I can't use it.
4. Do work well. But it use not understandable code for me.
(not use general java text package)
1)http://armedbear-j.sourceforge.net/
2)http://www.rene-grothmann.de
*** Finally, I have plan to make my own code using Mr rsk123's idea.
(using GlyphView in jdk1.3 or jdk1.4)
*** If you have a good information for text highliting of free code or
comecial code pleas notify me.
My address is [email protected] -
Hello,
I have an app thats makes use of an extended WrappedPlainView to add syntax highlighting. Everything works great except when I use bold fonts in random spots. When WrappedPlainView is asked to draw the text
swing does not allow enough room for the line with bold words.With bold words the line needs to be a bit
wider at times to not cut off any letters. Any ideas on how I can fix this ? On a side note , works fine
with fixed width fonts..
Thanks,
jdI've actually done this before. Instead of subclassing WrappedPlainView though, I subclassed BoxView (WrappedPlainView's parent class). This had to be done because WrappedPlainView has too much data hidden via package private/private methods, to the point where you cannot modify it for your multi-font needs. Besides, WrappedPlainView states in its documentation that it only supports rendering a single font. Hacking it to support multiple fonts (plain, bold, italic) may have unforseen consequences. Subclass BoxView instead.
It's a lot of work to do what you want to do, probably more than you realize. You have to write code to calculate where the wrapped lines should be broken apart (must be fast too), override modelToView/viewToModel to take into account different fonts, etc. Use WrappedPlainView as a guide, but change the parts that do things such as compute break locations, model-to-view translations, etc. to handle your font size data.
But in all seriousness, you probably should use JEditorPane for this. Here's my attempt to talk you into using one :)
mohadib_ wrote:
Also JEditorPaneWhat are you using to render a multi-font view, if not JEditorPane? JTextArea? You do realize that JTextArea and its associated views are designed to render only 1 font? While this can be done, it's not simple, as several parts of JTextArea and its associated views make assumptions about using a single font for performance reasons. You'll have to seriously study the Swing text package code, and make your own View subclasses for JTextArea that handle rendering multiple fonts, computing text widths, etc.
is horribly slowOf course it's slower than rendering a single font with JTextArea. Again, that's because JTextArea can take advantage of the fact that it's using a single font, which allows it to greatly speed up modelToView/viewToModel calculations, rendering, etc. JEditorPane is not slow because it's poorly designed or inefficient; rather, it's slow because of the extra work it's doing. It's mature enough to the point where it's probably difficult to make it faster without a redesign. Do you honestly think you can create a Swing text component that has all of the features of JEditorPane, but performs better?
and eats memeory.It consumes more memory than, say, JTextArea, because it's caching the fonts/colors used to render its document. If you want to support multiple fonts and syntax highlighting, you'll have to do the same thing. Can you cache this information in a more efficient way than JEditorPane does? Have you tried using JEditorPane and run into memory problems?
Again, this can be done, but really shouldn't. The perceived benefits don't really pan out, especially when weighed against the development and maintenance costs. More code => more bugs. Why not use the support already provided to you in the JDK? -
Hello,
does someone know how complex the javax.swing.text package is?
Perhaps someone knows of how many rows and/or functions the package consists?
thanks
kbjHello,
does someone know how complex the javax.swing.text
package is?
Perhaps someone knows of how many rows and/or
functions the package consists?
thanks
kbjDidnt count yet, but if somebody could tell me how to get all classes from a package i could easily calculate method-number.
Besides why do you want to know it ??
regards,
Tim -
I am new in swing. In javax.swing.text package is there a AbstractDocument class. If I have created that object, how can I move the contents of that object to RTF file? This mind come up because I want to save styled text into RTF file. Is that possible? Please give me some ideas. Thank you.
Look into RtfToolkit in the API maybe that will help.
-
Infinite loop error after using Java Sun Tutorial for Learning Swing
I have been attempting to create a GUI following Sun's learning swing by example (example two): http://java.sun.com/docs/books/tutorial/uiswing/learn/example2.html
In particular, the following lines were used almost word-for-word to avoid a non-static method call problem:
SwingApplication app = new SwingApplication();
Component contents = app.createComponents();
frame.getContentPane().add(contents, BorderLayout.CENTER);I believe that I am accidentally creating a new instance of the gui class repeatedly (since it shows new GUI's constantly and then crashes my computer), possibly because I am creating an instance in the main class, but creating another instance in the GUI itself. I am not sure how to avoid this, given that the tutorials I have seen do not deal with having a main class as well as the GUI. I have googled (a nice new verb) this problem and have been through the rest of the swing by example tutorials, although I am sure I am simply missing a website that details this problem. Any pointers on websites to study to avoid this problem would be appreciated.
Thanks for your time-
Danielle
/** GUI for MicroMerger program
* Created July/06 at IARC
*@ author Danielle
package micromerger;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import javax.swing.JFileChooser;
import java.lang.Object;
public class MGui
private static File inputFile1, inputFile2;
private static File sfile1, sfile2;
private static String file1Name, file2Name;
private String currFile1, currFile2;
private JButton enterFile1, enterFile2;
private JLabel enterLabel1, enterLabel2;
private static MGui app;
public MGui()
javax.swing.SwingUtilities.invokeLater(new Runnable()
public void run()
System.out.println("About to run create GUI method");
app = new MGui();
System.out.println("declared a new MGui....");
createAndShowGUI();
//initialize look and feel of program
private static void initLookAndFeel() {
String lookAndFeel = null;
lookAndFeel = UIManager.getSystemLookAndFeelClassName();
try
UIManager.setLookAndFeel(lookAndFeel);
catch (ClassNotFoundException e) {
System.err.println("Couldn't find class for specified look and feel:"
+ lookAndFeel);
System.err.println("Did you include the L&F library in the class path?");
System.err.println("Using the default look and feel.");
} catch (UnsupportedLookAndFeelException e) {
System.err.println("Can't use the specified look and feel ("
+ lookAndFeel
+ ") on this platform.");
System.err.println("Using the default look and feel.");
} catch (Exception e) {
System.err.println("Couldn't get specified look and feel ("
+ lookAndFeel
+ "), for some reason.");
System.err.println("Using the default look and feel.");
e.printStackTrace();
// Make Components--
private Component createLeftComponents()
// Make panel-- grid layout
JPanel pane = new JPanel(new GridLayout(0,1));
//Add label
JLabel welcomeLabel = new JLabel("Welcome to MicroMerger. Please Enter your files.");
pane.add(welcomeLabel);
//Add buttons to enter files:
enterFile1 = new JButton("Please click to enter the first file.");
enterFile1.addActionListener(new enterFile1Action());
pane.add(enterFile1);
enterLabel1 = new JLabel("");
pane.add(enterLabel1);
enterFile2 = new JButton("Please click to enter the second file.");
enterFile2.addActionListener(new enterFile2Action());
pane.add(enterFile2);
enterLabel2 = new JLabel("");
pane.add(enterLabel2);
return pane;
/** Make GUI:
private static void createAndShowGUI()
System.out.println("Creating a gui...");
JFrame.setDefaultLookAndFeelDecorated(true);
//Create and set up the window.
JFrame frame = new JFrame("MicroMerger");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//Add stuff to the frame
//MGui app = new MGui();
Component leftContents = app.createLeftComponents();
frame.getContentPane().add(leftContents, BorderLayout.WEST);
//Display the window.
frame.pack();
frame.setVisible(true);
private class enterFile1Action implements ActionListener
public void actionPerformed(ActionEvent evt)
JFileChooser chooser = new JFileChooser();
int rVal = chooser.showOpenDialog(enterFile1);
if(rVal == JFileChooser.APPROVE_OPTION)
inputFile1 = chooser.getSelectedFile();
PrintWriter outputStream;
file1Name = inputFile1.getName();
enterLabel1.setText(file1Name);
private class enterFile2Action implements ActionListener
public void actionPerformed(ActionEvent evt)
JFileChooser chooser = new JFileChooser();
int rVal = chooser.showOpenDialog(enterFile1);
if(rVal == JFileChooser.APPROVE_OPTION)
inputFile2 = chooser.getSelectedFile();
PrintWriter outputStream;
file2Name = inputFile2.getName();
enterLabel2.setText(file2Name);
} // end classAnd now the main class:
* Main.java
* Created on June 13, 2006, 2:29 PM
* @author Danielle
package micromerger;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
public class Main
/** Creates a new instance of Main */
public Main()
* @param args the command line arguments
public static void main(String[] args)
MGui mainScreen = new MGui();
//mainScreen.setVisible(true);
/**Starting to get file choices and moving them into GPR Handler:
System.out.println("into main method");
String file1Name = new String("");
file1Name = MGui.get1Name();
System.out.println("good so far- have MGui.get1Name()");
}// end main(String[] args)
}// end class Mainum, yeah, you definitely have a recursion problem, that's going to create an infinite loop. you will eventually end up an out of memory error, if you don't first get the OS telling you you have too many windows. interestingly, because you are deferring execution, you won't get a stack overflow error, which you expect in an infinite recursion.
lets examine why this is happening:
in main, you call new MGui().
new MGui() creates a runnable object which will be run on the event dispatch thread. That method ALSO calls new MGui(), which in turn ALSO creates a new object which will be run on the event dispatch thead. That obejct ALSO calls new MGui(), which ...
well, hopefully you get the picture.
you should never unconditionally call a method from within itself. that code that you have put in the constructor for MGui should REALLY be in the main method, and the first time you create the MGui in the main method as it currently exists is unnecessary.
here's what you do: get rid of the MGui constructor altogether. since it is the implicit constructor anyway, if it doesn't do anything, you don't need to provide it.
now, your main method should actually look like this:
public static void main( String [] args ) {
SwingUtilities.invokeLater( new Runnable() {
public void run() {
MGui app = new MGui();
app.createAndShowGUI();
}// end mainyou could also declare app and call the constructor before creating the Runnable, as many prefer, because you would have access to it from outside of the Runnable object. The catch there, though, is that app would need to be declared final.
- Adam -
AAARGH!!! Can't understand javax.swing.text.*
Good afternoon...
does anybody understand javax.swing.text classes? i've read a number of
books, downloaded docs (including those from the javax.swing.text author), and googled everything i could think of. but nothing seems to explain it to me so that i can understand it! maybe i'm just dense, but maybe it really is that difficult.
i want to create a read-only document, who's source is not necessarily a
string, but perhaps an ArrayList of objects with a HashMap of attributes. or even something simpler for now, just an object with a fixed number of attributes. i want to display this information in a JTextArea. i tried implementing a Document and passing it to the JTextArea constructor but just got a NullPointerException.
does anybody know where i can find more information on creating my own
document types?
here's the code for my ReadOnlyDocument class if anyone of you are generous (& adventurous) enough to take a look:
import java.util.ArrayList;
import javax.swing.event.DocumentListener;
import javax.swing.event.UndoableEditListener;
import javax.swing.text.AttributeSet;
import javax.swing.text.BadLocationException;
import javax.swing.text.Document;
import javax.swing.text.Element;
import javax.swing.text.Position;
import javax.swing.text.Segment;
public class ReadOnlyDocument implements Document{
private String myContent = "this is the contents of my document!";
private ArrayList listeners;
private ReadOnlyDocument refSelf = this;
public ReadOnlyDocument() {
System.out.println("ReadOnlyDocument.<init>");
public int getLength() {
System.out.println("ReadOnlyDocument.getLength() = " + myContent.length());
return myContent.length();
public void addDocumentListener(DocumentListener listener) {
System.out.println("ReadOnlyDocument.addDocumentListener(" + listener + ")");
if (listeners != null) {
listeners = new ArrayList();
listeners.add(listener);
} else {
listeners = new ArrayList();
listeners.add(listener);
public void removeDocumentListener(DocumentListener listener) {
System.out.println("ReadOnlyDocument.removeDocumentListener(" +
listener + ")");
if (listeners != null) {
listeners.remove(listener);
public void addUndoableEditListener(UndoableEditListener listener) {
// Read-only document, nothing to do here
System.out.println("ReadOnlyDocument.addUndoableEditListener(" +
listener + ")");
public void removeUndoableEditListener(UndoableEditListener listener) {
// Read-only document, nothing to do here
System.out.println("ReadOnlyDocument.removeUndoableEditListener(" +
listener + ")");
public Object getProperty(Object key) {
System.out.println("ReadOnlyDocument.getProperty(" + key + ") =
null");
return null;
public void putProperty(Object key, Object value) {
System.out.println("ReadOnlyDocument.putProperty(" + key + ")");
public void remove(int offs, int len) throws BadLocationException {
// Read-only document, nothing to do here
System.out.println("ReadOnlyDocument.remove(" + offs + ", " + len +
public void insertString(int offset, String str, AttributeSet a) throws
BadLocationException {
// Read-only document, nothing to do here
System.out.println("ReadOnlyDocument.insertString(" + offset + ", " +
str + ", " + a + ")");
public String getText(int offset, int length) throws
BadLocationException {
System.out.print("ReadOnlyDocument.getText(" + offset + ", " + length +
") = ");
if ((offset >= 0) && (length >= 0) && (offset+length <=
myContent.length()+1)) {
System.out.println(myContent.substring(offset, offset+length-1));
return myContent.substring(offset, offset+length-1);
} else {
System.out.println("BadLocationException!");
throw new BadLocationException("Bad location requested", 0);
public void getText(int offset, int length, Segment txt) throws
BadLocationException {
System.out.print("ReadOnlyDocument.getText(" + offset + ", " + length +
", " + txt + ") = ");
if ((offset >= 0) && (length >= 0) && (offset+length <=
myContent.length()+1)) {
System.out.println(myContent.substring(offset, offset+length-1));
txt = new Segment(myContent.toCharArray(), offset, length);
} else {
System.out.println("BadLocationException!");
throw new BadLocationException("Bad location requested", 0);
public Position getStartPosition() {
System.out.println("ReadOnlyDocument.getStartPosition() = 0");
return new Position() {
public int getOffset() {
return 0;
public Position getEndPosition() {
System.out.println("ReadOnlyDocument.getEndPosition() = " +
myContent.length());
return new Position() {
public int getOffset() {
return myContent.length();
public Position createPosition(int offs) throws BadLocationException {
System.out.println("ReadOnlyDocument.createPosition(" + offs + ") =
0");
if ((offs >= 0) && (offs <= myContent.length()-1)) {
return new Position() {
public int getOffset() {
return 0;
} else {
throw new BadLocationException("Bad location requested", 0);
public Element[] getRootElements() {
System.out.println("ReadOnlyDocument.getRootElements()");
Element[] roots = {new Element() {
public Document getDocument() {
return refSelf;
public Element getParentElement() {
return null;
public String getName() {
return "ReadOnlyRoot";
public AttributeSet getAttributes() {
return null;
public int getStartOffset() {
return 0;
public int getEndOffset() {
return myContent.length() - 1;
public int getElementIndex(int offset) {
return 0;
public int getElementCount() {
return 0;
public Element getElement(int index) {
return null;
public boolean isLeaf() {
return true;
return roots;
public Element getDefaultRootElement() {
System.out.println("ReadOnlyDocument.getDefaultRootElement()");
return new Element() {
public Document getDocument() {
return refSelf;
public Element getParentElement() {
return null;
public String getName() {
return "ReadOnlyRoot";
public AttributeSet getAttributes() {
return null;
public int getStartOffset() {
return 0;
public int getEndOffset() {
return myContent.length() - 1;
public int getElementIndex(int offset) {
return 0;
public int getElementCount() {
return 0;
public Element getElement(int index) {
return null;
public boolean isLeaf() {
return true;
public void render(Runnable r) {
// not sure what to put here
System.out.println("ReadOnlyDocument.render(" + r + ")");
}and here's a simple class to display the document/generate the error:
import java.awt.event.*;
import javax.swing.*;
public class ReadOnlyFrame extends JFrame {
public ReadOnlyFrame() {
super();
setTitle("Read Only Document");
addWindowListener(new WindowAdapter() {
public void windowClosed(WindowEvent e) {
System.exit(0);
getContentPane().add(new JTextArea(new ReadOnlyDocument()));
setSize(200, 200);
public static void main(String[] args) {
ReadOnlyFrame rof = new ReadOnlyFrame();
rof.setVisible(true);
Headed for the second star to the right and straight on till morning...
Eric Schultz
aka: Storkman
http://community.webshots.com/user/storky1
mailto:EricSchultzATcanadaDOTcomif you are getting that print before the timer
starts, then I'd expect it's not blocking. The
problem with these small snippets of code is that we
can't really tell what might be going on elsewhere.Yes, I realize that. AAMOF, there isn't anything going on elsewhere, i.e.
the GestureController object spawns another thread when it gets
created. That other thread blocks until a 'Mover' object is delivered to
the GestureController object. The mutex/synchronizing stuff works
like the textbook version, i.e. no deadlock, no deadly embrace, no
nothing. When the timer is started, the Mover is supposed to
call back the 'animate' method, just a method in the GestureController
object.
All the System.out.prints show that it gets there. The task (an ActionListener)
dispatched by that timer doesn't start. As you can see above, I've
used System.out.prints for that too. It is as if that Timer doesn't start.
I still haven't found anything ... This is what the 'auto.move' thing is
supposed to do: static class DragMover implements Mover {
DrawableStack from;
DrawableStack to;
int position;
DragMover(DrawableStack from, int position, DrawableStack to) {
this.from= from;
this.to = to;
this.position= position;
public void move() {
System.out.println("moving the stuff...");
GestureController.getGestureController().animate(from, position, to);
public void undo() { }
}... the line "moving stuff ..." isn't displayed either, i.e. the actionPerformed
method is never called and then ... there's nothing in between there, i.e.
the Timer is supposed to call that method.
Thank you for your reply, much appreciated and,
kind regards,
Jos
by that timer (an ActionListener) -
Extends javax.swing.text.DefaultFormatter
I try to create my own DefaultFormatter to create en hexadecimal field:
I wand to display always 0x and next we can edit hex value.
The problem I have is that I need to overwrite the method:
boolean isNavigatable(int offset)
but his access is friendly (package).
I have try to create a new class in javax.swing.text but my new method is newer used !!!
What can I do !!!The only two methods you should need to override are "stringToValue" and "valueToString". Those will get you back and forth between what the user enters, and what value is saved.
Hope this helps,
Josh Castagno
http://www.jdc-software.com -
Recruiting for redesign of Swing text editing components
With all due respect to the efforts of the Swing engineering team, I personally feel it is high time somebody took the incentive of completely reconsidering the implementations of JTextComponent and providing an open source replacement.
As those of us who have tried to make use of the existing JTextComponent will agree, it seems to be some of the most complex and obscure code in the entire Swing library, and has some serious deficiencies of fundamental design and implementation that do not seem to be being addressed.
I am appealing to anyone who wishes to contribute to such an effort to email me at [email protected] I would like to start by organizing a blue-ribbon team to review the current design, and a parallel effort to identify an ideal requirements set and a project plan moving forward.
Mitch Goldstein
Consultant, Swing Guru, Author of Hardcore JFC
[email protected]As those of us who have tried to make use of the
existing JTextComponent will agree, it seems to
be some of the most complex and obscure code in the
entire Swing library, and has some serious
deficiencies of fundamental design and implementation
that do not seem to be being addressed.[...]
It's good to know I'm not the only one that was thinking that. Sorry Tim :-) (Tim Prinzing wrote the text package). -
Arabic numerals not displaying in Swing text components
On a test system setup with Windows NT Arabic version, we had problems entering Arabic numerics into Swing text components.
Other Arabic characters were displayed correctly, but numerals were all represented by Western characters ('0 to 9'). Even when using the "Alt-" method to enter the Unicode character codes via. the keypad, we still got incorrect characters.
When using the keypad to enter the code '\u0660' (Arabic "1"), the code sent to the text component was '\u2022' (Bullet).
We tried this on an English system and the same code was passed to the text component.
Does anyone have any suggestions as to what might be the cause of this problem ?
Thanks,
Brian...hello!
I am developing an arabic editor but i am unable to display the arbic numeric in swing text .Plz help me on this topic and send some code example on this topic.
I have another problem about events i.e how can i handle the beckspace event, enter event, and spaceevent?
plz send me mail .
Thanx for advance. -
How to paste text in Adobe Muse with same color where i copied this text?
How to paste text in Adobe Muse with same color where i copied this text?
Copy&paste is a function of your browser, not the forum software. Ctrl+V will work just fine.
Mylenium -
Javax.swing.text.TableView bug in 1.4 beta 2 ?
Hi,
I derived a class from TableView, which worked fine with 1.3, but now causes the following exception as soon as being layouted:
java.lang.Error: should not happen: class com.lexetius.swing.text.LexTableView
at javax.swing.text.BoxView.baselineLayout(Unknown Source)
at javax.swing.text.ParagraphView$Row.layoutMinorAxis(Unknown Source)
at javax.swing.text.BoxView.setSpanOnAxis(Unknown Source)
at javax.swing.text.BoxView.layout(Unknown Source)
at javax.swing.text.BoxView.setSize(Unknown Source)
at javax.swing.text.BoxView.updateChildSizes(Unknown Source)
at javax.swing.text.BoxView.setSpanOnAxis(Unknown Source)
at javax.swing.text.BoxView.layout(Unknown Source)
at javax.swing.text.FlowView.layout(Unknown Source)
at javax.swing.text.BoxView.setSize(Unknown Source)
at javax.swing.text.BoxView.updateChildSizes(Unknown Source)
at javax.swing.text.BoxView.setSpanOnAxis(Unknown Source)
at javax.swing.text.BoxView.layout(Unknown Source)
at javax.swing.text.BoxView.setSize(Unknown Source)
at javax.swing.plaf.basic.BasicTextUI$RootView.setSize(Unknown Source)
at javax.swing.plaf.basic.BasicTextUI.getPreferredSize(Unknown Source)
at javax.swing.JComponent.getPreferredSize(Unknown Source)
at javax.swing.JEditorPane.getPreferredSize(Unknown Source)
at javax.swing.ScrollPaneLayout.layoutContainer(Unknown Source)
at java.awt.Container.layout(Unknown Source)
at java.awt.Container.doLayout(Unknown Source)
at java.awt.Container.validateTree(Unknown Source)
at java.awt.Container.validate(Unknown Source)
at javax.swing.RepaintManager.validateInvalidComponents(Unknown Source)
at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(Unknow
n Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
any ideas???I wrote the com.lexetius.swing.text.LexTableView component myself. It is derived directly from javax.swing.text.TableView and it adds virtually no functionality. I'm quite sure, the problem comes from the TableView class, but I can't verify that directly, since this class is abstract (why is that, anyway??).
It would certainly help me very much, if anybody had a component, which is also derived from javax.swing.text.TableView and works with the 1.4 beta. -
Where i can find the package "netscape.javascript.JSObject;" ??urgent
where i can find the package "netscape.javascript.JSObject;" ??urgent
pleaseThe Java Plug-in 1.3 ships netscape.javascript in a JAR file called JAWS.JAR. To compile an applet which uses JSObject, just add JAWS.JAR in the CLASSPATH before compilation.
If you don't have the Plug-in, but do have a Netscape browser installed, you can add the java40.jar file that comes with Communicator to the end of your CLASSPATH (or extract the netscape.* classes from there). -
Can't apply text packages on outdated plan?
I have the older Family SharePlan 1000 that is no longer offered. VZW allows us to keep this plan until we change it, but I wanted to apply the 1,000/$10 a month texting plan to one of our lines and it won't let me. When I choose the texting option and hit next it says "Please select a new plan for your device". Obviously they want me to change it, but is there any way around this? Or do I simply not get to change this unless we pay extra for a different plan that we don't even need?
Jrowell, that is a great question. I can certainly check your options to see if you are able to add the $10 text package without changing your price plan. I will need to view your account first. Please send me a direct message with your name and mobile number for further assistance.
MarquiaF_VZW
Follow us on Twitter@VZWSupport
Maybe you are looking for
-
T code QA11, quantity can not be posted to blocked stock
For Inspection lot with system status is INSP RREC SPRQ, when user tries to perform QA 11 to post stock to blocked stock the system does not allow as "to blocked stock field" is greyed out and also can not chnage the storage location on that screen
-
IPod touch 4g not recognized in computer and itunes
I
-
How do we delete/read the contents of a POPUP window?
Hi, I have a POP UP window designed on the ACTION push button . This POP up window contains another 3 buttons. I want to delete/disable the last entry in this pop up , i.e, 'Request Deal Approval'. The method that i had redefined is EH_ONPPFACTION. T
-
What is the best book to buy to learn PS
Can any body recommend a good book to help with PS.
-
Creating 16:9 sequence using standard dv
I am looking to put two clips captured in standard dv side by side on a widescreen using FCP