Immutable String in a swing.text.Document
Hello,
I want to add to a text component an 'immutable' bit of text. That is a string that is one 'item', it can not be broken or split. If for example if you wanted to delete you would have to delete the whole thing, not part of it.
Does anyone know how to do this?
I'm currently using a JTextPane and struggling with the Document interface.
Some context to this. I'm building a widget like the Outlook 'to field'. You type text in and it looks up that text in a list of contacts. You can select from the list. When you do this the contact is added to the text box and is underlined and made bold and becomes 'immutable' in the way that I have explained above.
In an ideal World I would want to do this :
be able to add a ContactElement to the text pane. Be able to specifiy that ContactElements are to be rendered in bold and underlined and would display the name attribute of the Contact object. These ContactElements would be 'immutable' as described above. Get a list of the ContactElements in the text pane and thus the contacts displayed.
hope that makes sense, all help gratefully received,
thanks, Tom
When you insert a ContactElement, create two Position objects representing the start and end points of the element, and save them. Whenever the user moves the caret, refer to your list of ContactElement end points to see whether the new location is inside one. If it is, either whisk the caret to the other end or select the whole thing, whatever seems appropriate. I've never used it, but I believe NavigationFilter is the tool for that job.
Any time text is deleted, you'll need to check the list to see if the deleted section contained any ContactElements, and to remove them from the list if so. I was going to recommend using a DocumentListener for that, but I don't think it would work; all the Positions would already have been updated. I suggest using a DocumentFilter to update the list before deleting the text.
One complication that occurs to me is searching, or other operations that involve programmatic selection or highlighting. The NavigationFilter is too low-level; you'll have to make sure the search feature doesn't look inside ContactElements. You'll probably find other higher-level tasks that need to be aware of ContactElements so they can treat them specially.
Similar Messages
-
We have a large application that includes an editor for users to create and edit various documents.
We are using a JEditorPane that displays custom documents tailored to our requirements (via a custom editor kit, etc). These vary from simple 'Word' style user interfaces to more elaborate graphical data entry forms.
The problem we are facing is that no matter what content the JEditorPane is displaying there is always a line at the bottom of the pane that the text caret can get to that is not part of our documents and does not allow the user to type into this space. This being there isn't causing any major problems just very annoying that we can't figure out how to get rid of it.
A temporary solution for the moment has been to add a caret listener to the editor and if the caret position goes to the last position in the document it moves it back a space (messy, but it works for the moment).
Has anyone else experienced something similar to this?#
Any help appreciated.DefaultStyledDocument seems to be the problem.
Our class extends this.
It contains a paragraph with "/n" when it is created and this doesn't seem to get removed when we add our content (via create(es)) and we can't remove it manually afterwards.
The elaborate slightly
calling dump() before we create out document gives something along the lines of (I've removed a few carrage returns and replaced them with \n to make it easier to look at): -
<section>
<paragraph resolver=NamedStyle:default {name=default,nrefs=1}>
<content>
[0,1][\n]
<bidi root>
<bidi level bidiLevel=0>
[0,1][\n]
We then call create(es) where es is an array of ElementSpecs
The array consists of element specs with the following attributes (or a rough description of them).
0 StartTagType (Start)
1 StartTagType (Start of our report)
2 StartTagType (Start of a paragraph with font attributes, etc)
3 ContentType (Our content where length=5 data = "blah\n")
4 EndTagType (End of paragraph with font attributes)
5 StartTagType (Start of a new paragraph)
6 ContentType (More content where length=1 data="\n")
7 EndTagType (End of paragraph with font attributes)
8 EndTagType (End of our report)
9 EndTagType (End)
The first thing the create method in DefaultStyledDocument does is
if (getLength() != 0) {
remove(0, getLength());
getLength returns 0 even though "/n" is there (as you described above). Hence remove(o, getLength()) never gets called. If I try and get clever and call the remove method after the create method using something like remove(getLength()-1, getLenght()) or even: -
Element element = this.getParagraphElement(getLength());
int startOffset = element.getStartOffset();
int endOffset = element.getEndOffset();
this.remove(startOffset, endOffset-startOffset);
it never has any effect.
If I call dump() again after the create method I get something along the lines of : -
<section>
<REPORT
foreground=java.awt.Color[r=128,g=128,b=128]
$ename=REPORT
CHANGED=hss.radiology.reports.ReportDocument$ChangedMarker@39471b
READONLY=true
REPORT=hss.cris3.Report@37cee4
>
<paragraph
$ename=paragraph
family=Verdana
size=18
>
<content>
[0,5][blah\n]
<paragraph
$ename=paragraph
family=Verdana
size=18
>
<content>
[5,6][\n]
<paragraph resolver=NamedStyle:default {name=default,nrefs=1}
>
<content>
[6,7][\n]
<bidi root>
<bidi level
bidiLevel=0
>
[0,7][blah\n\n\n]
Does anyone have any ideas of how i may be able to remove the last paragraph?
Thanks, Paul -
Merge 2 javax.swing.text.Documents
Can I somehowmerge 2 styled documents?
I have 2 JEditPanes with 2 styled docs and I want to append first one at the end of second one.(When I say styled, I mean, that I have already set some attibutes and I want them in the other document, I know, how to append plain text with insertString)
-
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) -
Many javax.swing.text.Position objects en masse
Hi,
I am wondering if anyone has much experience with the performance of javax.swing.text.Document implementations (using GapContent) and a large number of registered Position objects. I am trying to keep track of token boundaries for quick re-lexing, and the token count can be rocket high. I am just beginning to work with this API, and I guess I am looking for any insider information I may be missing.
Thanks,
galaxyHi,
I am wondering if anyone has much experience with the performance of javax.swing.text.Document implementations (using GapContent) and a large number of registered Position objects. I am trying to keep track of token boundaries for quick re-lexing, and the token count can be rocket high. I am just beginning to work with this API, and I guess I am looking for any insider information I may be missing.
Thanks,
galaxy -
Replace string in text document help please
I am trying to make a simple program that changes all "http://" to "https://ssl." in a text document. This is the code I have created so far but the program is not working as intended. I am making this program so I can quicky change the links on my website to the secure webpages.
import java.io.*;
public class Main {
public static void main(String[] args) {
try {
File f = new File("textFile.txt");
RandomAccessFile raf = new RandomAccessFile(f , "rw");
String line = raf.readLine();
while(line != null){
line = line.replaceAll("http://" , "https://ssl.");
raf.writeChars(line);
line = raf.readLine();
raf.close();
} catch (IOException e) {
}Any help welcome!This is not a Java thing, but a general fact about files and I/O:
You can't edit a file in place. Do this:
1. Read the original file a line at a time.
2. Edit each line and write them out to a new file.
3. When you are done, close the files. Delete the original file and then rename the new file to the old file's name. -
Fix for PENDING in javax.swing.text.html.ParagraphView line #131
Investigating source of HTMLEditorKit I found many PENDING things. That's fix for one of them - proper minimal necessary span detecting in table cells.
Hope it will help to somebody else.
import javax.swing.*;
import javax.swing.text.html.*;
import javax.swing.text.html.ParagraphView;
import javax.swing.text.*;
import java.awt.*;
import java.text.*;
import java.util.ArrayList;
public class App extends JFrame {
public static String htmlString="<html>\n" +
"<body>\n" +
"<p>The following table is used to illustrate the PENDING in javax.swing.text.html.ParagraphView line #131 fix.</p>\n" +
"<table cellspacing=\"0\" border=\"1\" width=\"50%\" cellpadding=\"3\">\n" +
"<tr>\n" +
"<td>\n" +
"<p>111111111111111111111111111111111<b>bold</b>22222222222222222222222222222</p>\n" +
"</td>\n" +
"<td>\n" +
"<p>-</p>\n" +
"</td>\n" +
"</tr>\n" +
"</table>\n" +
"<p></p>\n" +
"</body>\n" +
"</html>";
JEditorPane editor=new JEditorPane();
JEditorPane editor2=new JEditorPane();
public static void main(String[] args) {
App app = new App();
app.setVisible(true);
public App() {
super("HTML span fix example");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JSplitPane split=new JSplitPane(JSplitPane.VERTICAL_SPLIT, createFixedPanel(), createOriginalPanel());
getContentPane().add(split);
setSize(700, 500);
split.setDividerLocation(240);
setLocationRelativeTo(null);
JComponent createOriginalPanel() {
JPanel p=new JPanel(new BorderLayout());
p.add(new JLabel("Original HTMLEditorKit"), BorderLayout.NORTH);
HTMLEditorKit kit=new HTMLEditorKit();
editor2.setEditorKit(kit);
editor2.setContentType("text/html");
editor2.setText(htmlString);
p.add(new JScrollPane(editor2), BorderLayout.CENTER);
return p;
JComponent createFixedPanel() {
JPanel p=new JPanel(new BorderLayout());
p.add(new JLabel("Fixed HTMLEditorKit"), BorderLayout.NORTH);
HTMLEditorKit kit=new MyHTMLEditorKit();
editor.setEditorKit(kit);
editor.setContentType("text/html");
editor.setText(htmlString);
p.add(new JScrollPane(editor), BorderLayout.CENTER);
return p;
class MyHTMLEditorKit extends HTMLEditorKit {
ViewFactory defaultFactory=new MyHTMLFactory();
public ViewFactory getViewFactory() {
return defaultFactory;
class MyHTMLFactory extends HTMLEditorKit.HTMLFactory {
public View create(Element elem) {
View v=super.create(elem);
if (v instanceof ParagraphView) {
v=new MyParagraphView(elem);
return v;
class MyParagraphView extends ParagraphView {
public MyParagraphView(Element elem) {
super(elem);
protected SizeRequirements calculateMinorAxisRequirements(int axis, SizeRequirements r) {
r = super.calculateMinorAxisRequirements(axis, r);
float min=getLongestWordSpan();
r.minimum = Math.max(r.minimum, (int) min);
return r;
public float getLongestWordSpan() {
if (getContainer()!=null && getContainer() instanceof JTextComponent) {
try {
int offs=0;
JTextComponent c=(JTextComponent)getContainer();
Document doc=getDocument();
int start=getStartOffset();
int end=getEndOffset()-1; //don't need the last \n
String text=doc.getText(start, end - start);
if(text.length() > 1) {
BreakIterator words = BreakIterator.getWordInstance(c.getLocale());
words.setText(text);
ArrayList<Integer> wordBounds=new ArrayList<Integer>();
wordBounds.add(offs);
int count=1;
while (offs<text.length() && words.isBoundary(offs)) {
offs=words.next(count);
wordBounds.add(offs);
float max=0;
for (int i=1; i<wordBounds.size(); i++) {
int wStart=wordBounds.get(i-1)+start;
int wEnd=wordBounds.get(i)+start;
float span=getLayoutSpan(wStart,wEnd);
if (span>max) {
max=span;
return max;
} catch (BadLocationException e) {
e.printStackTrace();
return 0;
public float getLayoutSpan(int startOffset, int endOffset) {
float res=0;
try {
Rectangle r=new Rectangle(Short.MAX_VALUE, Short.MAX_VALUE);
int startIndex= layoutPool.getViewIndex(startOffset,Position.Bias.Forward);
int endIndex= layoutPool.getViewIndex(endOffset,Position.Bias.Forward);
View startView=layoutPool.getView(startIndex);
View endView=layoutPool.getView(endIndex);
int x1=startView.modelToView(startOffset,r,Position.Bias.Forward).getBounds().x;
int x2=endView.modelToView(endOffset,r,Position.Bias.Forward).getBounds().x;
res=startView.getPreferredSpan(View.X_AXIS)-x1;
for (int i=startIndex+1; i<endIndex; i++) {
res+=layoutPool.getView(i).getPreferredSpan(View.X_AXIS);
res+=x2;
} catch (BadLocationException e) {
e.printStackTrace();
return res;
}Regards,
StasI'm changing the foreground color with
MutableAttributeSet attr = new SimpleAttributeSet();
StyleConstants.setForeground(attr, newColor);
int start=MyJTextPane..getSelectionStart();
int end=MyJTextPane.getSelectionEnd();
if (start != end) {
htmlDoc.setCharacterAttributes(start, end, attr, false);
else {
MutableAttributeSet inputAttributes =htmlEditorKit.getInputAttributes();
inputAttributes.addAttributes(attr); -
How can you detect all words and phrases in a text document using java?
Is there some java API which would help me extract all words, multi-word phrases, punctuations in an English text document? I would also like to get the order in which they appear with sentence detection. I've been searching for this in java NLP packages, but haven't found anything yet.
Any help would be appreciated.
Thanks,
AjithI don't understand what you actually want, but if your on about having a file and splitting it up into sentences then i would look into either psudocode or parsing strings, theres not a java api as far as i know that does anything like you want, you would have to write it yourself or find a project someone else has made.
-
String representation of the xml document
hi, I have created the following xml document using the DOM api. I want to the "function" to return a "string" - which represents the xml document i created. How do u do that?
As of now it doesnt return anything...
How do u return the entire xml document as character data..? just like
<root><elements>data</elements></root>....
anyhelp would be great.
import java.io.*;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.DocumentBuilder;
import org.w3c.dom.*;
public class test1{
private static void function()throws IOException, DOMException{
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance ();
DocumentBuilder db = dbf.newDocumentBuilder ();
Document doc = db.newDocument ();
Element record = doc.createElement ("record");
Element name = doc.createElement ("name");
Element address = doc.createElement ("address");
Element zip = doc.createElement ("zip");
Text nameText = doc.createTextNode("bill");
Text addressText = doc.createTextNode("128, washington");
Text zipText = doc.createTextNode("10000");
doc.appendChild(record);
record.appendChild(name);
name.appendChild(nameText);
record.appendChild(address);
address.appendChild(addressText);
record.appendChild(zip);
zip.appendChild(zipText);
public static void main (String argv [])throws Exception {
function();
}Brent,
Looks like you're using the Sun Java Parser. I'll show you how to do it with the Oracle XML Parser and you can extrapolate...
Document doc = new XMLDocument();
// Stuff here to build up the DOM Doc
// with elements, etc.
// Print the Document to a String
StringWriter sw = new StringWriter();
// Wrap the stringwriter in a printwriter
PrintWriter pw = new PrintWriter(sw);
// Print to the printwriter
((XMLDocument)doc).print(pw);
// return the string from the stringwriter
return sw.toString(); -
How to output full-text document from BDB-XML
I put a XML document(test.xml) into BDB-XML; Edit and modify use BDB-XML API.
After, if I want to output(roll out) my XML document(test.xml) which was storage in BDB-XML.
Are there any support in BDB-XML API or Shell to output full-text document from DB??
Thank you very much :)In the shell:
dbxml> getDocument "document name"
dbxml> print ["output_file_name"]
In a (Java) program:
XmlDocument doc = container.getDocument("document name");
String output = doc.getContentAsString();
Regards,
George -
Save an Image object into a XML text document
ello:
I have a problem with saving an image. I need to encapsulate it into two XML tags:
<Image> xxxxxx </Image>
The "xxxx" must be a String that represents my Image object.
In J2ME I haven't serialization, and all the examples about "manual serialization" works with primitive types :(
I've already read that I can do .getRGB() over my Image object, and obtain an array of int, wich represent each pixel. Ok, I can transform the array into a String, and write it in my XML text document, but later: how I obtain my array from that String?
Thak you very muchprivate Image img;
byte rgb[] = null;
private rgbLength; // get lenth of your string
rgb = new byte(rgbLength);
rgb = ... //load data from string to this array
img = createRGBImage(rgb, int width, int height, false) ;You must know length of your string and must encapsulate in to XML width and height of this image; -
[HELP! ] why my program thows a javax.swing.text.ChangedCharSetException?
there's the source:
import java.io.*;
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.text.*;
import javax.swing.text.html.*;
import javax.swing.border.*;
class HTMLMagician extends JFrame
protected static final String APP_NAME="HTML Magician V1.0 Produced By V Studio";
protected JTextPane hm_textPane;
protected StyleSheet hm_styleSheet;
protected HTMLEditorKit html_kit;
protected HTMLDocument html_document;
protected JMenuBar hm_menuBar;
protected JToolBar hm_toolBar;
protected JFileChooser hm_fileChooser;
protected File current_file;
protected boolean text_changed=false;
public HTMLMagician()
super(APP_NAME);
setSize(800,600);
getContentPane().setLayout(new BorderLayout());
produceMenuBar();
hm_textPane=new JTextPane();
html_kit=new HTMLEditorKit();
hm_textPane.setEditorKit(html_kit);
JScrollPane textPane_scrollPane=new JScrollPane();
textPane_scrollPane.getViewport().add(hm_textPane);
getContentPane().add(textPane_scrollPane,BorderLayout.CENTER);
hm_fileChooser=new JFileChooser();
javax.swing.filechooser.FileFilter hm_filter=new javax.swing.filechooser.FileFilter()
public boolean accept(File pathname)
if(pathname.isDirectory())
return true;
String ext_name=pathname.getName().toLowerCase();
if(ext_name.endsWith(".htm"))
return true;
if(ext_name.endsWith(".html"))
return true;
if(ext_name.endsWith(".asp"))
return true;
if(ext_name.endsWith(".jsp"))
return true;
if(ext_name.endsWith(".css"))
return true;
if(ext_name.endsWith(".php"))
return true;
if(ext_name.endsWith(".aspx"))
return true;
if(ext_name.endsWith(".xml"))
return true;
if(ext_name.endsWith(".txt"))
return true;
return false;
public String getDescription()
return "HTML files(*.htm,*.html,*.asp,*.jsp,*.css,*.php,*.aspx,*.xml)";
hm_fileChooser.setAcceptAllFileFilterUsed(false);
hm_fileChooser.setFileFilter(hm_filter);
try
File dir=(new File(".")).getCanonicalFile();
hm_fileChooser.setCurrentDirectory(dir);
}catch(IOException ex)
showError(ex,"Error openning current directory");
newDocument();
WindowListener action_winClose=new WindowAdapter()
public void windowClosing(WindowEvent evt)
if(!promptToSave())
return;
System.exit(0);
addWindowListener(action_winClose);
setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
setVisible(true);
protected void produceMenuBar()
hm_menuBar=new JMenuBar();
hm_toolBar=new JToolBar();
JMenu menu_file=new JMenu("File");
menu_file.setMnemonic('f');
ImageIcon icon_new=new ImageIcon("imgs/file.gif");
Action action_new=new AbstractAction("New",icon_new)
public void actionPerformed(ActionEvent evt)
if(!promptToSave())
return;
newDocument();
JMenuItem item_new=new JMenuItem(action_new);
item_new.setMnemonic('n');
item_new.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N,InputEvent.CTRL_MASK));
menu_file.add(item_new);
JButton button_new=hm_toolBar.add(action_new);
ImageIcon icon_open=new ImageIcon("imgs/folder_open.gif");
Action action_open=new AbstractAction("Open...",icon_open)
public void actionPerformed(ActionEvent evt)
if(!promptToSave())
return;
openDocument();
JMenuItem item_open=new JMenuItem(action_open);
item_open.setMnemonic('o');
item_open.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O,InputEvent.CTRL_MASK));
menu_file.add(item_open);
JButton button_open=hm_toolBar.add(action_open);
ImageIcon icon_save=new ImageIcon("imgs/floppy.gif");
Action action_save=new AbstractAction("Save",icon_save)
public void actionPerformed(ActionEvent evt)
saveAs(false);
JMenuItem item_save=new JMenuItem(action_save);
item_save.setMnemonic('s');
item_save.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S,InputEvent.CTRL_MASK));
menu_file.add(item_save);
JButton button_save=hm_toolBar.add(action_save);
Action action_saveAs=new AbstractAction("Save As...")
public void actionPerformed(ActionEvent evt)
saveAs(true);
JMenuItem item_saveAs=new JMenuItem(action_saveAs);
item_saveAs.setMnemonic('a');
item_saveAs.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_A,InputEvent.CTRL_MASK));
menu_file.add(item_saveAs);
menu_file.addSeparator();
Action action_close=new AbstractAction("Quit")
public void actionPerformed(ActionEvent evt)
if(!promptToSave())
return;
System.exit(0);
JMenuItem item_exit=new JMenuItem(action_close);
item_exit.setMnemonic('q');
item_exit.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Q,InputEvent.CTRL_MASK));
menu_file.add(item_exit);
hm_menuBar.add(menu_file);
setJMenuBar(hm_menuBar);
getContentPane().add(hm_toolBar,BorderLayout.NORTH);
protected String getDocumentName()
return current_file==null ? "Untitled" : current_file.getName();
protected void newDocument()
html_document=(HTMLDocument)html_kit.createDefaultDocument();
hm_styleSheet=html_document.getStyleSheet();
hm_textPane.setDocument(html_document);
current_file=null;
setTitle(getDocumentName()+" - "+APP_NAME);
Runnable runner=new Runnable()
public void run()
text_changed=false;
html_document.addDocumentListener(new action_textChanged());
SwingUtilities.invokeLater(runner);
protected void openDocument()
if(hm_fileChooser.showOpenDialog(HTMLMagician.this)!=JFileChooser.APPROVE_OPTION)
return;
File f=hm_fileChooser.getSelectedFile();
if(f==null || !f.isFile())
return;
current_file=f;
setTitle(getDocumentName()+" - "+APP_NAME);
HTMLMagician.this.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
try
InputStream in=new FileInputStream(current_file);
html_document=(HTMLDocument)html_kit.createDefaultDocument();
html_kit.read(in,html_document,0);
hm_styleSheet=html_document.getStyleSheet();
hm_textPane.setDocument(html_document);
in.close();
}catch(Exception ex)
showError(ex,"Error openning file "+current_file);
HTMLMagician.this.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
Runnable runner=new Runnable()
public void run()
text_changed=false;
html_document.addDocumentListener(new action_textChanged());
SwingUtilities.invokeLater(runner);
protected boolean saveAs(boolean as)
if(!as && !text_changed)
return true;
if(as || current_file==null)
if(hm_fileChooser.showSaveDialog(HTMLMagician.this)!=JFileChooser.APPROVE_OPTION)
return false;
File f=hm_fileChooser.getSelectedFile();
if(f==null || !f.isFile())
return false;
current_file=f;
setTitle(getDocumentName()+" - "+APP_NAME);
HTMLMagician.this.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
try
OutputStream out=new FileOutputStream(current_file);
html_kit.write(out,html_document,0,html_document.getLength());
out.close();
}catch(Exception ex)
showError(ex,"Error saving file "+current_file);
HTMLMagician.this.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
return true;
protected boolean promptToSave()
if(!text_changed)
return true;
int result=JOptionPane.showConfirmDialog(this,"Save change to "+getDocumentName(),APP_NAME,JOptionPane.YES_NO_CANCEL_OPTION,JOptionPane.INFORMATION_MESSAGE);
switch(result)
case JOptionPane.YES_OPTION:
if(!saveAs(false))
return false;
return true;
case JOptionPane.NO_OPTION:
return true;
case JOptionPane.CANCEL_OPTION:
return false;
return true;
protected void showError(Exception ex,String message)
ex.printStackTrace();
JOptionPane.showMessageDialog(this,message,APP_NAME,JOptionPane.WARNING_MESSAGE);
public static void main(String[] args)
new HTMLMagician();
class action_textChanged implements DocumentListener
public void changedUpdate(DocumentEvent evt)
text_changed=true;
public void insertUpdate(DocumentEvent evt)
text_changed=true;
public void removeUpdate(DocumentEvent evt)
text_changed=true;
when i open a .html file,the command output :
javax.swing.text.ChangedCharSetException
at javax.swing.text.html.parser.DocumentParser.handleEmptyTag(Unknown Source)
at javax.swing.text.html.parser.Parser.startTag(Unknown Source)
at javax.swing.text.html.parser.Parser.parseTag(Unknown Source)
at javax.swing.text.html.parser.Parser.parseContent(Unknown Source)
at javax.swing.text.html.parser.Parser.parse(Unknown Source)
at javax.swing.text.html.parser.DocumentParser.parse(Unknown Source)
at javax.swing.text.html.parser.ParserDelegator.parse(Unknown Source)
at javax.swing.text.html.HTMLEditorKit.read(Unknown Source)
at javax.swing.text.DefaultEditorKit.read(Unknown Source)
at HTMLMagician.openDocument(HTMLMagician.java:222)
at HTMLMagician$4.actionPerformed(HTMLMagician.java:128)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(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)
why? what's wrong? thanksThe DocumentParser seems to throw a ChangedCharSetException if it finds a "http-equiv" meta tag for "content-type" or "charset" and if the parser's "ignoreCharSet" property is set to false on creation.
-
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? -
Can a Resource file (.fr) be of type "Unicode text document"?
Dear All,
I'm doing string localization in my plugin programs. I created a resource file (MyPlugIn2_arAE.fr) for defining arabic strings. When I saved this file, I selected the type as "Unicode Text Document". Becuase only if it is a Unicode Text Document my arabic strings are preoperly saved. If I selected the type as "Text document" and save the file, all my arabic strings became "????????" like that. Now the problem is, it's giving a compilation error. (This is because the resource file MyPlugIn2_arAE.fr is saved as "Unicode Text Document").
Error looking for resource specification. Need 'resource' or 'type'.
odfrc - Execution terminated!
How do I resolve this problem?
Thanks.Hi,
I tried compiling with CS3 SDK, it gave an error and some warnings. I copied the output below. But with CS4 SDK, it compiles fine. How do I resolve this?
1>Compiling...
1>VCPlugInHeaders.cpp
1>c:\sdk\adobeindesign\cs3\source\public\includes\UnicodeSavvyString.h(261) : error C2220: warning treated as error - no 'object' file generated
1>c:\sdk\adobeindesign\cs3\source\public\includes\UnicodeSavvyString.h(261) : warning C4267: 'argument' : conversion from 'size_t' to 'int32', possible loss of data
1>c:\sdk\adobeindesign\cs3\source\public\includes\UnicodeSavvyString.h(268) : warning C4267: '=' : conversion from 'size_t' to 'int32', possible loss of data
1>c:\sdk\adobeindesign\cs3\source\public\includes\UnicodeSavvyString.h(281) : warning C4267: 'argument' : conversion from 'size_t' to 'int32', possible loss of data
1>c:\sdk\adobeindesign\cs3\source\public\includes\WideString.h(348) : warning C4267: 'argument' : conversion from 'size_t' to 'int32', possible loss of data
1>c:\sdk\adobeindesign\cs3\source\public\includes\WideString.h(366) : warning C4267: 'return' : conversion from 'size_t' to 'int32', possible loss of data
1>c:\sdk\adobeindesign\cs3\source\public\includes\WideString.h(536) : warning C4267: 'initializing' : conversion from 'size_t' to 'const int32', possible loss of data
1> c:\sdk\adobeindesign\cs3\source\public\includes\WideString.h(477) : see reference to function template instantiation 'int32 Strip_If<std::binder1st<_Fn2>>(WideString &,T)' being compiled
1> with
1> [
1> _Fn2=std::equal_to<WideString::value_type>,
1> T=std::binder1st<std::equal_to<WideString::value_type>>
1> ]
1>c:\sdk\adobeindesign\cs3\source\public\includes\WideString.h(554) : warning C4267: 'return' : conversion from 'size_t' to 'int32', possible loss of data
1>Build log was saved at "file://c:\MyProjects\MyPlugIn2\objR\MyPlugIn2\BuildLog.htm"
1>MyPlugIn2 - 1 error(s), 7 warning(s)
========== Rebuild All: 0 succeeded, 1 failed, 0 skipped ========== -
Missing Jar files javax.swing.text.Utilities(printTable)
Hi Experts,
please explain which jar files are required for Javax.swing.text.Utilites(printTable()).
tilities utilities = new Utilities();
ArrayList al = new ArrayList();
al.add(IPrivateWOAccCodeView.IWOElement.RQT_NO);
al.add(IPrivateWOAccCodeView.IWOElement.WO_TITLE);
al.add(IPrivateWOAccCodeView.IWOElement.RQTR);
al.add(IPrivateWOAccCodeView.IWOElement.TOT_AMT);
al.add(IPrivateWOAccCodeView.IWOElement.STATUS);
al.add(IPrivateWOAccCodeView.IWOElement.PLAN_START_DATE);
al.add(IPrivateWOAccCodeView.IWOElement.TARGET_END_DATE);
al.add(IPrivateWOAccCodeView.IWOElement.ACCOUNT_CODE);
al.add(IPrivateWOAccCodeView.IWOElement.APPLY_AMOUNT);
//To print in HTML
String printURL = (String) utilities.printTable(al,"Work Order Details By Account Code","Work Order Details By Account Code",wdContext.nodeWO()).get("url");
wdContext.currentContextElement().setPrintURL(printURL);
//@@end
Error in printTable that is method is undefined.
Regards,
Smruti
Edited by: smruti moharana on Jun 20, 2011 8:10 AMAccording to my knowledge, there is no printTable method in javax.swing.text.Utilities class
What are you trying to achieve?
Maybe you are looking for
-
I have an otterbox case for my iphone 4s and want to know if there's a docking unit where i can sit my phone in with the case still on and with a usb connection it'sll charge and transfer data (music, video, etc, to my stereo unit (alpine 910 gps)
-
Hi Everybody Plz tell me when do we use ws_upload/download and in which case we use gui_upload/download and also whatz the additional function provided by gui_upload over upload THanks
-
Hi Guys, Can you please share idoc type for IQ01(Creating Material Serial No + class characteristics). Is it exists?
-
Hi, Oracle 10g, How i can justify my data in text field? I mean the data must be in the middle between the upper Edge And the Down Edge. Regards,
-
License extension for CE 7.1 SP3
Dear all, I would just like to know how to extend the license for CE 7.1 SP3 Trial version? Is it via Visual Administrator like for J2E? If so, which is the path? Ths for any support, Stefan