JTextPane delimiter attribute

I need to visually display a "delimiter" string in my JTextPane at various locations. The string is non-editable. However, I do not want the string to show up in my text when I retrieve the document text. So I have 2 questions:
1. How do I make the visual display show different text than what is in the document?
2. How do I make a section of text be non-editable?

Indeed, despite all the narrative in
http://developer.java.sun.com/developer/bugParade/bugs/4336804.html
it appears this problem is still not fixed. I have tried it
in 1.3 an 1.4 and the effect is the same.
I want a left indent of (say) 50 and a first line indent of -50 to
achieve a hanging indent, but the first line indent is ignored.
I've done a fair amount of work with the swing text passage
and I don't really mind digging further, but if anyone has a
workaround I'd be grateful.

Similar Messages

Extracting parts of a comma delimited attribute

Hi,
I have an attribute (or column) of type varchar2, this contains
data such as:
'a,b,c,d'
for example. How would I extract each of these in turn, for use
individually?
Any help is appreciated,
Matt

Ripped this out of a old piece of code...
hope it helps. (blanks are replaced with Middle Dot 00B7)
SQL>7DECLARE
7727777kc_delim7777777VARCHAR2(01)7777:=7','7;
77377--
7747777TYPE7tabtype_char_short7IS7TABLE7OF7VARCHAR2(30)
7INDEX7BY7BINARY_INTEGER777;
7757777tc_column_name7tabtype_char_short77;
7767777vc_cols_temp7VARCHAR2(2000)7:=7',This,is,a,test,string,'7;
77777BEGIN
7787777DECLARE
7797777i7BINARY_INTEGER77:=7707;
7107777BEGIN
7117777<<parse_out_col_names_loop>>
7127777WHILE7INSTR7(7vc_cols_temp,7kc_delim7)7>707LOOP
7137777--
714777777i7:=7717+7i7;
715777777tc_column_name(i)7:=77SUBSTR(7vc_cols_temp,71,77INSTR
(77vc_cols_temp,7kc_delim77)7-717)7;
716777777DBMS_OUTPUT.PUT_LINE('tc_column_name('||i||')
='||tc_column_name(i)7)7;
7177777--
718777777EXIT7Parse_Out_Col_Names_Loop7WHEN7INSTR7
(7vc_cols_temp,7kc_delim7)7=7LENGTH7(7vc_cols_temp)7;
7197777--
720777777vc_cols_temp77:=77SUBSTR(7vc_cols_temp,7INSTR
(77vc_cols_temp,7kc_delim77)7+717)7;
7217777--
7227777END7LOOP77parse_out_col_names_loop77;
7237777END7;
72477END;
72577/
tc_column_name(1)=
tc_column_name(2)=This
tc_column_name(3)=is
tc_column_name(4)=a
tc_column_name(5)=test
tc_column_name(6)=string
PL/SQL7procedure7successfully7completed.
Good Luck.

JDOM attribute converts tab characters to a space separator

I am using a well-formed xml file to parse delimited data. I am passing a tab character as an attribute to an element called delimiter. When the text values from my elements are read in, the tab character is properly read. The tab character that is stored in the delimiter attribute is read in as a space separator rather than a tab. Is this a bug or should I be parsing the attribute differntly? Below is my sample code and xml stream:
public static void main(String args[]) {
try{
File file = new File("c:\\output.xml");
Element rootElement = getRootElement(new FileReader(file));
System.out.println("Element text is tab: " + rootElement.getText().equals("\t"));
System.out.println("Attribute text is tab: " + rootElement.getAttributeValue("delimiter").equals("\t"));
System.out.println("Attribute type: " + Character.getType(rootElement.getAttributeValue("delimiter").charAt(0)));
//returns type 12 (space separator)
}catch (Exception e) {}
public static Element getRootElement(Reader reader) throws JDOMException, FileNotFoundException{
Element rootElement = null;
SAXBuilder builder = new SAXBuilder();
try {
// Generate JDom Document
org.jdom.Document jdomDoc = builder.build(reader);
rootElement = jdomDoc.getRootElement();
}catch (JDOMException e) { throw new JDOMException(e.getMessage()); } // indicates a well-formedness or validity error
return rootElement;
Below is the xml data that I used to emulate this test:
<DELIM_TEST delimiter=" "> </DELIM_TEST>
NOTE: replace the delimiter and text values with a tab character if the html post converts them to a space.

I don't think it's a bug, I think it's a feature. Have a look at the XML specs, which are here:
http://www.w3.org/TR/REC-xml#sec-white-space
and see if section 2.10, White Space Handling, describes what you are describing. I found it rather obscure. Also, Michael Kay's book on XSLT has about six pages devoted to white space handling, and at one point it says
"The XML parser will normalize attribute values. A tab or newline will always be replaced by a single space, unless it is written as a character reference..."

JTextPane (reading char and its attributes)

Hellow,
I am trying to write a simple editor, where a person could write his text (in different size and color etc.) and than i need to turn this text to html code.
So the way that i determen the shape of the text in JTextPane is:
StyleConstants.setBold(set, false);
* pane.setCharacterAttributes(set, false);*
And now i have to you trought the document and read the chars and its asstributes.
And the way that i go trought the doc is by using the caret: moveCaretPosition(x);
Reading the char: char c=pane.getText(pane.getCaretPosition(),1).charAt(0);
But the problem now is... by moving the caret (dot) the mark stays in its place, so when I try to read the attribues(*AttributeSet crka;crka=pane.getCharacterAttributes();*), i read them for all the chars selected so far (0->x).
How do i move this oround, so that only one char is read and its attributes?
Edited by: Defero on Jul 19, 2008 3:09 AM

Sorry for that,
Yeah but it still doesnt work right.
Example:
Text in pane:
AB C DEFGH... (ignore spacers)
And then if i read the number of attributes on each char, they go like this:
00111111...
Just in case, i post my code of setting the arguments:
JButton gumb=new JButton("bold");
 gumb.addActionListener((
 new ActionListener() {
 public void actionPerformed(ActionEvent e) {
 if(bold==false){
 StyleConstants.setBold(set, true);
 pane.setCharacterAttributes(set, true);
 pane.requestFocus();
 bold=true;
 }else {
 StyleConstants.setBold(set, false);
 pane.setCharacterAttributes(set, false);
 bold=false;
 pane.requestFocus();
 ));And reading should go like this right?:
StyledDocument ddoc=pane.getStyledDocument();
for(int i=0;i<ddoc.getLength();i++){
int x=ddoc.getCharacterElement(i).getAttributes().getAttributeCount();
}Edited by: Defero on Jul 19, 2008 10:12 PM
Edited by: Defero on Jul 19, 2008 10:12 PM

p tags with attributes not removed from JTextPane

We are using HTMLEditorKit with JtextPane to create a HTML Document Editor, for our project. [JDK 1.3.1.]
When we have a simple tag for paragraph in HTML and we start deleting things from end of the document, it works fine. But when we have a tag with attributes like the delete key deletes the characters but the cursor remains in the line below and doesnot move up as the characters of above para get deleted. The HTML also retains the tag, which should have been removed. It seems its not able to identify tags with attributes as Html para tags, and so not deleting it.
How do we solve this without migrating to jdk1.4 ? Please help.

Usually attributes such as 'align=center' are deleted along with a tag, regardless of whether it is a p tag or another one. But you would have to carefully test what exactly gets deleted because attributes are not only stored with paragraphs. They can exist for single characters and as well come from a style sheet.
The best is to generate a dump of your document before and after deletion.
You can use something like the below code (it is not optimized at all and thus could be implemented better but it works) to produce a dump
public void listElements(Element elem, int indent) {
 int i;
 String is = getIndent(indent);
 String elemName = elem.getName();
 Document elemDoc = elem.getDocument();
 String cont = "";
 String theText = "";
 System.out.println(is + "--start-----");
 System.out.println(is + "Element Name:" + elemName);
 if(elemName.equals(new String("content"))) {
 try {
 theText = elemDoc.getText(
 elem.getStartOffset(),
 elem.getEndOffset() - elem.getStartOffset());
 System.out.println(is + "Content: " + theText);
 if(theText.indexOf("\r") > -1) {
 System.out.println(is + " plus \\r");
 if(theText.indexOf("\n") > -1) {
 System.out.println(is + " plus \\n");
 catch (Exception e) {
 listAttributes(elem, indent);
 if(!elem.isLeaf()) {
 for(i=0;i<elem.getElementCount();i++) {
 listElements(elem.getElement(i),indent+2);
 System.out.println(is + "---end----");
public void listAttributes(Element elem, int indent) {
 Object key;
 String attr;
 String attrName;
 int pos;
 String is = getIndent(indent);
 AttributeSet as = elem.getAttributes();
 Enumeration an = as.getAttributeNames();
 try {
 while(an.hasMoreElements()) {
 key = an.nextElement();
 attrName = key.toString();
 attr = as.getAttribute(key).toString();
 System.out.println(is + "Attribute Name: " +
 attrName + " Attribute Content: " + attr);
 if(attr.indexOf("\r") > -1) {
 System.out.println(is + " plus \\r");
 if(attr.indexOf("\n") > -1) {
 System.out.println(is + " plus \\n");
 catch (Exception e) {
 e.printStackTrace();
}Hope that helps
Ulrich

How to get string from jtextpane along with its attributes

sir,
How to get string from jtextpane along with its attributes
i,e font,size,style,color etc.
please help me out.
my mail id is [email protected]

JTextPane extends JTextComponent
JTextComponent.getDocument()
a Document is a set of Element, see Document.getRootElements(). Each Element has attributes, stored within an AttributSet object see Element.getAttributes()
a Document can also be rendered as a String, see Document.getText( offest, length ), use it with 0 and Document.getLength() as parameters.

How to add attributed string to JTextPane

Hi all,
Could you tell me how to add an attributed string into a Textpane.
Textpane only takes a styledDocument. Is there any way to convert attributed string into a styled document.
Are there any components , which we can include attributed string , instead of simple string. Becoz i want my text to have variable fonts.

Hello,
check this short course about [url http://developer.java.sun.com/developer/onlineTraining/GUI/Swing2/shortcourse.html#JFCStyled]JTextPane and StyledDocument.
Heres a small example:import javax.swing.*;
import javax.swing.text.*;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import java.awt.event.*;
public class AttributedStringTest extends JFrame
     public static void main(String[] args)
          new AttributedStringTest();
     private JTextPane textPane = null;
     private StyledDocument doc = null;
     AttributedStringTest()
          setDefaultCloseOperation(EXIT_ON_CLOSE);
          initMenuBar();
          initTextPane();
          setSize(500, 300);
          setLocationRelativeTo(null);
          setVisible(true);
     private void initMenuBar()
          JMenuBar mbar = new JMenuBar();
          JMenu menu = new JMenu("StyleConstants");
          JMenuItem item = new JMenuItem("Color");
          item.addActionListener(new ActionListener()
               public void actionPerformed(ActionEvent e)
                    Color color =
                         JColorChooser.showDialog(
                              AttributedStringTest.this,
                              "Color Chooser",
                              Color.cyan);
                    if (color != null)
                         MutableAttributeSet attr = new SimpleAttributeSet();
                         StyleConstants.setForeground(attr, color);
                         textPane.setCharacterAttributes(attr, false);
          menu.add(item);
          JMenu font = new JMenu("Font");
          font.add(item = new JMenuItem("12"));
          item.addActionListener(new StyledEditorKit.FontSizeAction("font-size-12", 12));
          font.add(item = new JMenuItem("24"));
          item.addActionListener(new StyledEditorKit.FontSizeAction("font-size-24", 24));
          font.add(item = new JMenuItem("36"));
          item.addActionListener(new StyledEditorKit.FontSizeAction("font-size-36", 36));
          font.addSeparator();
          font.add(item = new JMenuItem("Serif"));
          item.setFont(new Font("Serif", Font.PLAIN, 12));
          item.addActionListener(
               new StyledEditorKit.FontFamilyAction("font-family-Serif", "Serif"));
          font.add(item = new JMenuItem("SansSerif"));
          item.setFont(new Font("SansSerif", Font.PLAIN, 12));
          item.addActionListener(
               new StyledEditorKit.FontFamilyAction("font-family-SansSerif", "SansSerif"));
          font.add(item = new JMenuItem("Monospaced"));
          item.setFont(new Font("Monospaced", Font.PLAIN, 12));
          item.addActionListener(
               new StyledEditorKit.FontFamilyAction("font-family-Monospaced", "Monospaced"));
          font.addSeparator();
          menu.add(font);
          mbar.add(menu);
          setJMenuBar(mbar);
     private void initTextPane()
          doc = new DefaultStyledDocument();
          textPane = new JTextPane(doc);
          JScrollPane scroll = new JScrollPane(textPane);
          getContentPane().add(scroll);
          final JTextField text = new JTextField();
          text.setToolTipText("Please enter something");
          text.addActionListener(new ActionListener()
               public void actionPerformed(ActionEvent e)
                    try
                         doc.insertString(doc.getLength(), text.getText(), textPane.getInputAttributes());
                    } catch (BadLocationException bad)
          getContentPane().add(text, BorderLayout.SOUTH);
//not formatted version:import javax.swing.*;
import javax.swing.text.*;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import java.awt.event.*;
public class AttributedStringTest extends JFrame
     public static void main(String[] args)
          new AttributedStringTest();
     private JTextPane textPane = null;
     private StyledDocument doc = null;
     AttributedStringTest()
          setDefaultCloseOperation(EXIT_ON_CLOSE);
          initMenuBar();
          initTextPane();
          setSize(500, 300);
          setLocationRelativeTo(null);
          setVisible(true);
     private void initMenuBar()
          JMenuBar mbar = new JMenuBar();
          JMenu menu = new JMenu("StyleConstants");
          JMenuItem item = new JMenuItem("Color");
          item.addActionListener(new ActionListener()
               public void actionPerformed(ActionEvent e)
                    Color color =
                         JColorChooser.showDialog(
                              AttributedStringTest.this,
                              "Color Chooser",
                              Color.cyan);
                    if (color != null)
                         MutableAttributeSet attr = new SimpleAttributeSet();
                         StyleConstants.setForeground(attr, color);
                         textPane.setCharacterAttributes(attr, false);
          menu.add(item);
          JMenu font = new JMenu("Font");
          font.add(item = new JMenuItem("12"));
          item.addActionListener(new StyledEditorKit.FontSizeAction("font-size-12", 12));
          font.add(item = new JMenuItem("24"));
          item.addActionListener(new StyledEditorKit.FontSizeAction("font-size-24", 24));
          font.add(item = new JMenuItem("36"));
          item.addActionListener(new StyledEditorKit.FontSizeAction("font-size-36", 36));
          font.addSeparator();
          font.add(item = new JMenuItem("Serif"));
          item.setFont(new Font("Serif", Font.PLAIN, 12));
          item.addActionListener(
               new StyledEditorKit.FontFamilyAction("font-family-Serif", "Serif"));
          font.add(item = new JMenuItem("SansSerif"));
          item.setFont(new Font("SansSerif", Font.PLAIN, 12));
          item.addActionListener(
               new StyledEditorKit.FontFamilyAction("font-family-SansSerif", "SansSerif"));
          font.add(item = new JMenuItem("Monospaced"));
          item.setFont(new Font("Monospaced", Font.PLAIN, 12));
          item.addActionListener(
               new StyledEditorKit.FontFamilyAction("font-family-Monospaced", "Monospaced"));
          font.addSeparator();
          menu.add(font);
          mbar.add(menu);
          setJMenuBar(mbar);
     private void initTextPane()
          doc = new DefaultStyledDocument();
          textPane = new JTextPane(doc);
          JScrollPane scroll = new JScrollPane(textPane);
          getContentPane().add(scroll);
          final JTextField text = new JTextField();
          text.setToolTipText("Please enter something");
          text.addActionListener(new ActionListener()
               public void actionPerformed(ActionEvent e)
                    try
                         doc.insertString(doc.getLength(), text.getText(), textPane.getInputAttributes());
                    } catch (BadLocationException bad)
          getContentPane().add(text, BorderLayout.SOUTH);
regards
Tim

Insert Issue writing to pipe delimited column multiple attributes.Drop Dead

Gurus,
drop dead date tomorrow, please help
Page won't write pipe delimited data to single column. Below is a sample from my VO. All three attributes reference a single column-different pipe delimited positions. Reference these values from page. No error appears when creating new "account" from page but after commit, no pipe delimited data is committed.
Any ideas?
substr(AcctMapEO.header_label_template, 1, instr(AcctMapEO.header_label_template,'|')-1) referencename1,
SUBSTR(substr(AcctMapEO.header_label_template,instr(AcctMapEO.header_label_template,'|')+1,instr(AcctMapEO.header_label_template,'|',1,2)-instr(AcctMapEO.header_label_template,'|')-1),1,40) referencename2,
substr(substr(AcctMapEO.header_label_template,instr(AcctMapEO.header_label_template,'|',1,2)+1,instr(AcctMapEO.header_label_template,'|',1,3)-instr(AcctMapEO.header_label_template,'|',1,2)-1),1,40) referencename3
Edited by: sreese on Sep 21, 2009 2:20 PM
Edited by: sreese on Sep 22, 2009 12:22 AM

Gurus,
Please help!
Ok, here's what I've done which should work but doesn't. I've created a new non-table Entity Attribute in my EO. Then created Transient Attribute in my VO and assigned to value from EO. In my page, I've referenced my transient attribute from VO Instance. In my EOImpl, I'm passing the attribute as a parameter.
No error occurs but Transient Attrib value isn't being passed into PL/SQL call like all other attributes. When I make the call below in TOAD, value is created properly.
public void insertRow()
try
OADBTransactionImpl oadbtransactionimpl = (OADBTransactionImpl)getDBTransaction();
String s = "begin spl_jdev_api_account_map.spl_create_acct(p_cont_cd=>:1,p_consolidate_cd=>:2, p_customer=>:3,p_req_asn=>:4, p_sonic_label=>:5,p_req_conversion_date=>:6,p_override_asn=>:7,p_vendor_name=>:8,p_building =>:9,p_revision =>:10, p_acct_lookup_use_whse_flag =>:11,p_asn_under_rcpt_tolerance=>:12,p_asn_over_rcpt_tolerance=>:13,p_created_by=>:14,p_creation_date=>:15,p_last_updated_by=>:16,p_last_update_date=>:17,p_cancel_asn_yn=>:18,";
String t = "p_use_flex_valueset=>:19,p_po_asn_yn=>:20,p_prepaid_ups_flag=>:21,p_eia_label=>:22,p_exe_flag=>:23,p_header_label_template=>:24,p_line_label_template=>:25,p_all_lpns=>:26,p_internal_asn=>:27,p_print_pickslip =>:28,p_replace_asn_flag =>:29,p_get_line_ref_flag=>:30,p_commercial_inv_flag=>:31,p_req_asn_search =>:32,p_asn_ship_days =>:33,p_asn_receipt_days=>:34,p_asn_creation_days =>:35,p_asn_conversion_flag =>:36,p_min_shelf_life_days=>:37,p_restrict_expired_pick =>:38,";
String u = "p_ars_rules=>:39,p_restock_ord_tgt_oms=>:40,p_attribute_category =>:41,p_attribute1 =>:42,p_attribute2 =>:43,p_attribute3 =>:44,p_attribute4 =>:45,p_attribute5=>:46,p_attribute6=>:47,p_attribute7 =>:48,p_attribute8=>:49,p_attribute9=>:50,p_attribute10=>:51,p_attribute11 =>:52,p_attribute12 =>:53,p_attribute13 =>:54,p_attribute14 =>:55,p_attribute15 =>:56,p_reflbl1 => :57); end;";
String v = (s+t+u);
OracleCallableStatement oraclecallablestatement = (OracleCallableStatement)oadbtransactionimpl.createCallableStatement(v, -1);
oraclecallablestatement.setString(1,getContCd());
oraclecallablestatement.setString(2,getConsolidateCd());
oraclecallablestatement.setString(3,getCustomer());
oraclecallablestatement.setString(4,getReqAsn());
Edited by: sreese on Sep 24, 2009 3:06 PM

How to prevent JTextPane from inserting newline on setText(longLine)

Hi all, I have seen some posts (referenced below) regarding
JTextPane and turning off line wrap. I tried these but still
have some unwanted behavior.
If I insert long html content that has no CRs in it into a JTextPane,
using setText(...)
and then immediatly call getText()
I get back my html content with CRs in it.
how can I prevent this????
In the code below, I insert a long line (html), then call getText()
and JTextPane has inserted a CR after the ffff
visually , in the gui, it did not put a line break there, which is great, but
somewhere in the document model it was inserted
I have code that would break if there are newlines in
strange places like that.
I DO want the html markup from the call to JTextPane.getText()
but not with the additional newlines.
import javax.swing.*;
import javax.swing.event.*;
import java.awt.event.*;
import java.awt.*;
import javax.swing.text.html.*;
import javax.swing.text.*;
import javax.swing.border.*;
import java.io.*;
import java.awt.datatransfer.*;
public class MyTextPane extends JTextPane implements MouseListener, ActionListener {
 static final long serialVersionUID = 1;
 private JPopupMenu popupMenu = null;
 private JMenuItem cutMenuItem = null;
 private JMenuItem copyMenuItem = null;
 private JMenuItem pasteMenuItem = null;
 private JMenuItem clearMenuItem = null;
 //private JMenuItem selectAllMenuItem = null;
 private int startSelectionPosition = -1;
 private int endSelectionPosition = -1;
 private boolean bTopSeperatorInserted = false;
 private int topMenuItemInsertionIndex = 0;
 public MyTextPane() {
 super();
 init();
 private void init() {
 addMouseListener(this);
 java.awt.Font font = new java.awt.Font("Dialog", java.awt.Font.PLAIN, 14);
 setFont(font);
 createAndConfigurePopupMenu();
 startNewDocument();
 A FocusListener is also added to our editor. The two methods of this listener, focusGained() and
 focusLost(), will be invoked when the editor gains and loses the focus respectively. The purpose of
 this implementation is to save and restore the starting and end positions of the text selection.
 The reason? -> Swing supports only one text selection at any given time. This means
 that if the user selects some text in the editor component to modify it's attributes, and then goes
 off and makes a text selection in some other component, the original text selection will disappear.
 This can potentially be very annoying to the user. To fix this problem I'll save the selection before
 the editor component loses the focus. When the focus is gained we restore the previously saved selection.
 I'll distinguish between two possible situations: when the caret is located at the beginning of the
 selection and when it is located at the end of the selection. In the first case, position the
 caret at the end of the stored interval with the setCaretPosition() method, and then move the
 caret backward to the beginning of the stored interval with the moveCaretPosition() method.
 The second situation is easily handled using the select() method.
 FocusListener focusListener = new FocusListener() {
 public void focusGained(FocusEvent e) {
 int len = getDocument().getLength();
 if (startSelectionPosition>=0 &&
 endSelectionPosition>=0 &&
 startSelectionPosition<len &&
 endSelectionPosition<len)
 if (getCaretPosition() == startSelectionPosition) {
 setCaretPosition(endSelectionPosition);
 moveCaretPosition(startSelectionPosition);
 else
 select(startSelectionPosition, endSelectionPosition);
 public void focusLost(FocusEvent e) {
 startSelectionPosition = getSelectionStart();
 endSelectionPosition = getSelectionEnd();
 addFocusListener(focusListener);
 // CONTROL+ALT+S to view HTML source and change it
 Action viewSourceAction = new ViewSourceAction();
 getActionMap().put("viewSourceAction", viewSourceAction);
 InputMap inputMap = getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
 KeyStroke keyStroke = KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_S,
 InputEvent.CTRL_MASK+InputEvent.ALT_MASK);
 inputMap.put(keyStroke, "viewSourceAction");
 // if a merge tag is at the end of a long line, JTextPane
 // inserts CR/LF into the middle of the merge tag, like this
 // "this is a really long line and at the end is a merge tag <merge \r\n name="Case ID"/>"
 // We need to turn off line wrapping to prevent this.
 // see http://forum.java.sun.com/thread.jspa?forumID=57&threadID=326017
 // overriding setSize(..) and getScrollableTracksViewportWidth()
 public void setSize(Dimension d)
 if (d.width < getParent().getSize().width)
 d.width = getParent().getSize().width;
 super.setSize(d);
 public boolean getScrollableTracksViewportWidth() { return false; }
 class ViewSourceAction extends AbstractAction
 public void actionPerformed(ActionEvent e)
 try {
 HTMLEditorKit m_kit = (HTMLEditorKit)MyTextPane.this.getEditorKit();
 HTMLDocument m_doc = (HTMLDocument)MyTextPane.this.getDocument();
 StringWriter sw = new StringWriter();
 m_kit.write(sw, m_doc, 0, m_doc.getLength());
 sw.close();
 HtmlSourceDlg dlg = new HtmlSourceDlg(null, sw.toString());
 dlg.setVisible(true);
 if (!dlg.succeeded())
 return;
 StringReader sr = new StringReader(dlg.getSource());
 m_doc = createDocument();
 m_kit.read(sr, m_doc, 0);
 sr.close();
 setDocument(m_doc);
 catch (Exception ex) {
 ex.printStackTrace();
 private HTMLDocument createDocument() {
 HTMLEditorKit htmlEditorKit = new HTMLEditorKit();
 StyleSheet styles = htmlEditorKit.getStyleSheet();
 StyleSheet ss = new StyleSheet();
 ss.addStyleSheet(styles);
 HTMLDocument doc = new HTMLDocument(ss);
 //doc.setParser(htmlEditorKit.getParser());
 //doc.setAsynchronousLoadPriority(4);
 //doc.setTokenThreshold(100);
 return doc;
 public Element getElementByTag(HTML.Tag tag) {
 HTMLDocument htmlDocument = (HTMLDocument)getDocument();
 Element root = htmlDocument.getDefaultRootElement();
 return getElementByTag(root, tag);
 public Element getElementByTag(Element parent, HTML.Tag tag) {
 if (parent == null || tag == null)
 return null;
 for (int k=0; k<parent.getElementCount(); k++) {
 Element child = parent.getElement(k);
 if (child.getAttributes().getAttribute(
 StyleConstants.NameAttribute).equals(tag))
 return child;
 Element e = getElementByTag(child, tag);
 if (e != null)
 return e;
 return null;
 public void mouseClicked(MouseEvent e){}
 public void mouseEntered(MouseEvent e){}
 public void mouseExited(MouseEvent e){}
 public void mouseReleased(MouseEvent e){}
 public void mousePressed(MouseEvent e)
 if (e.getModifiers() == MouseEvent.BUTTON3_MASK)
 Clipboard cb = Toolkit.getDefaultToolkit().getSystemClipboard();
 if (cb.getContents(this) == null || !isEditable() || !isEnabled()) {
 pasteMenuItem.setEnabled(false);
 } else {
 pasteMenuItem.setEnabled(true);
 if (getSelectedText() == null) {
 copyMenuItem.setEnabled(false);
 cutMenuItem.setEnabled(false);
 } else {
 copyMenuItem.setEnabled(true);
 if ((getBorder() == null) || !isEditable() || !isEnabled()) {
 cutMenuItem.setEnabled(false);
 } else {
 cutMenuItem.setEnabled(true);
 popupMenu.show(this,e.getX(),e.getY());
 public JPopupMenu getPopupMenu() { return popupMenu; }
 * Creates the Popup menu with Cut,Copy,Paste
 * menu items if it hasn't already been created.
 private void createAndConfigurePopupMenu() {
 popupMenu = new JPopupMenu();
 clearMenuItem = new JMenuItem(new ClearAction());
 clearMenuItem.setText("Clear");
 //selectAllMenuItem = new JMenuItem(new SelectAllAction());
 //selectAllMenuItem.setText("Select All");
 cutMenuItem = new JMenuItem(new DefaultEditorKit.CutAction());
 cutMenuItem.setText("Cut");
 copyMenuItem = new JMenuItem(new DefaultEditorKit.CopyAction());
 copyMenuItem.setText("Copy");
 // when pasting, only paste the plain text (not any markup)
 PasteAction pasteAction = new PasteAction();
 pasteMenuItem = new JMenuItem(/*new DefaultEditorKit.PasteAction()*/);
 pasteMenuItem.addActionListener(pasteAction);
 pasteMenuItem.setText("Paste");
 popupMenu.add(cutMenuItem);
 popupMenu.add(copyMenuItem);
 popupMenu.add(pasteMenuItem);
 popupMenu.add(new JPopupMenu.Separator());
 popupMenu.add(clearMenuItem);
 //popupMenu.add(selectAllMenuItem);
 setKeyStrokes();
 private void doPasteAction()
 Clipboard cb = Toolkit.getDefaultToolkit().getSystemClipboard();
 Transferable content = cb.getContents(this);
 try {
 // when pasting, discard the markup
 String s = (String)content.getTransferData(DataFlavor.stringFlavor);
 HTMLDocument doc = (HTMLDocument)MyTextPane.this.getDocument();
 HTMLEditorKit kit = (HTMLEditorKit)MyTextPane.this.getEditorKit();
 doc.insertString(MyTextPane.this.getCaretPosition(),
 s,
 kit.getInputAttributes());
 catch (Throwable exc) {
 exc.printStackTrace();
 class PasteAction implements ActionListener
 public void actionPerformed(ActionEvent e) {
 doPasteAction();
 * Sets the short cut keys and actions for corresponding actions for keys.
 private void setKeyStrokes() {
 KeyStroke paste = KeyStroke.getKeyStroke(KeyEvent.VK_V,
 KeyEvent.CTRL_MASK);
 /** Performs pasteAction when short-cut key paste action is performed */
 Action pasteAction = new AbstractAction() {
 * Handles user clicked actions.
 * @param actionEvent -
 * ActionEvent object.
 public void actionPerformed(ActionEvent actionEvent) {
 doPasteAction();
 InputMap inputMap = getInputMap(JTextPane.WHEN_FOCUSED);
 getActionMap().put(inputMap.get(paste), pasteAction);
 public void actionPerformed(ActionEvent e) {
 if(e.getActionCommand().equals("Select All"))
 selectAll();
 else if(e.getActionCommand().equals("Clear"))
 clear();
 public void append(String s) {
 super.setText( getText() + s );
 public void clear() {
 startNewDocument();
 public void startNewDocument() {
 HTMLEditorKit editorKit = new HTMLEditorKit();
 setContentType("text/html");
 setEditorKit(editorKit);
 HTMLDocument document = (HTMLDocument) editorKit.createDefaultDocument();
 setDocument(document);
 // to enable the copy and paste from ms word (and others) to the JTextPane, set
 // this client property. Sun Bug ID: 4765240
 document.putProperty("IgnoreCharsetDirective",Boolean.TRUE);
 document.setPreservesUnknownTags(false);
 class ClearAction extends AbstractAction{
 public void actionPerformed(ActionEvent e) {
 startNewDocument();
 class SelectAllAction extends AbstractAction{
 public void actionPerformed(ActionEvent e) {
 selectAll();
 class HtmlSourceDlg extends JDialog {
 protected boolean m_succeeded = false;
 protected JTextArea m_sourceTxt;
 public HtmlSourceDlg(JFrame parent, String source) {
 super(parent, "HTML Source", true);
 JPanel pp = new JPanel(new BorderLayout());
 pp.setBorder(new EmptyBorder(10, 10, 5, 10));
 m_sourceTxt = new JTextArea(source, 20, 60);
 m_sourceTxt.setFont(new Font("Courier", Font.PLAIN, 12));
 JScrollPane sp = new JScrollPane(m_sourceTxt);
 pp.add(sp, BorderLayout.CENTER);
 JPanel p = new JPanel(new FlowLayout());
 JPanel p1 = new JPanel(new GridLayout(1, 2, 10, 0));
 JButton bt = new JButton("Save");
 ActionListener lst = new ActionListener() {
 public void actionPerformed(ActionEvent e) {
 m_succeeded = true;
 dispose();
 bt.addActionListener(lst);
 p1.add(bt);
 bt = new JButton("Cancel");
 lst = new ActionListener() {
 public void actionPerformed(ActionEvent e) {
 dispose();
 bt.addActionListener(lst);
 p1.add(bt);
 p.add(p1);
 pp.add(p, BorderLayout.SOUTH);
 getContentPane().add(pp, BorderLayout.CENTER);
 pack();
 setResizable(true);
 setLocationRelativeTo(parent);
 public boolean succeeded() {
 return m_succeeded;
 public String getSource() {
 return m_sourceTxt.getText();
 public void addToPopupMenuAboveEditItems(JMenuItem menuItem)
 if (!bTopSeperatorInserted) {
 popupMenu.insert(new JPopupMenu.Separator(), 0);
 bTopSeperatorInserted = true;
 popupMenu.insert(menuItem, topMenuItemInsertionIndex);
 ++topMenuItemInsertionIndex;
 public static void main(String args[])
 JFrame frame = new JFrame("MyTextPane");
 MyTextPane textPane = new MyTextPane();
 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 JScrollPane scrollPane = new JScrollPane(textPane);
 String s = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa bbbb cccc dddd eeee ffff gggg hhhh iiii jjjj aaaaaaaaaaaaaaaaaaaaaaa";
 System.out.println("\nthe long string prior to calling JTextPane.setText(..) WITH NO NEWLINES\ns=" +s);
 textPane.setText(s);
 System.out.println("\n\nthe text returned from calling JTextPane.setText(..) -> it inserted CR & newline after the ffff\n");
 System.out.println("textPane.getText()=" +textPane.getText());
 frame.getContentPane().add(scrollPane,BorderLayout.CENTER);
 frame.setSize(500, 700);
 frame.setVisible(true);
 }http://forum.java.sun.com/thread.jspa?threadID=356749&messageID=3012080
and
http://forum.java.sun.com/thread.jspa?forumID=57&threadID=326017
Edited by: henryhamster on Sep 13, 2007 8:59 PM

ok, I found a somewhat work around. calling JTextPane.getText() eventually
invokes HTMLEditorKit.write()
which does code
HTMLWriter w = new HTMLWriter(out, (HTMLDocument)doc, pos, len);
w.write();the HTMLWriter() constructor above makes this call
setLineLength(80);
So If I extend some classes (JEditorKit and HTMLWriter) I can call invoke
htmlWriter.setLineLength(1000); // ridiculous length to prevent insertion of CR/LF
here is the hack, can someone please tell
me there is an easier way. :-)
import javax.swing.*;
import javax.swing.event.*;
import java.awt.event.*;
import java.awt.*;
import javax.swing.text.html.*;
import javax.swing.text.*;
import javax.swing.border.*;
import java.io.*;
import java.awt.datatransfer.*;
public class MyTextPane extends JTextPane implements MouseListener,
 ActionListener {
 static final long serialVersionUID = 1;
 private JPopupMenu popupMenu = null;
 private JMenuItem cutMenuItem = null;
 private JMenuItem copyMenuItem = null;
 private JMenuItem pasteMenuItem = null;
 private JMenuItem clearMenuItem = null;
 // private JMenuItem selectAllMenuItem = null;
 private int startSelectionPosition = -1;
 private int endSelectionPosition = -1;
 private boolean bTopSeperatorInserted = false;
 private int topMenuItemInsertionIndex = 0;
 public MyTextPane() {
 super();
 init();
 private void init() {
 addMouseListener(this);
 java.awt.Font font = new java.awt.Font("Dialog", java.awt.Font.PLAIN,
 14);
 setFont(font);
 createAndConfigurePopupMenu();
 startNewDocument();
 * A FocusListener is also added to our editor. The two methods of this
 * listener, focusGained() and focusLost(), will be invoked when the
 * editor gains and loses the focus respectively. The purpose of this
 * implementation is to save and restore the starting and end positions
 * of the text selection. The reason? -> Swing supports only one text
 * selection at any given time. This means that if the user selects some
 * text in the editor component to modify it's attributes, and then goes
 * off and makes a text selection in some other component, the original
 * text selection will disappear. This can potentially be very annoying
 * to the user. To fix this problem I'll save the selection before the
 * editor component loses the focus. When the focus is gained we restore
 * the previously saved selection. I'll distinguish between two possible
 * situations: when the caret is located at the beginning of the
 * selection and when it is located at the end of the selection. In the
 * first case, position the caret at the end of the stored interval with
 * the setCaretPosition() method, and then move the caret backward to
 * the beginning of the stored interval with the moveCaretPosition()
 * method. The second situation is easily handled using the select()
 * method.
 FocusListener focusListener = new FocusListener() {
 public void focusGained(FocusEvent e) {
 int len = getDocument().getLength();
 if (startSelectionPosition >= 0 && endSelectionPosition >= 0
 && startSelectionPosition < len
 && endSelectionPosition < len) {
 if (getCaretPosition() == startSelectionPosition) {
 setCaretPosition(endSelectionPosition);
 moveCaretPosition(startSelectionPosition);
 } else
 select(startSelectionPosition, endSelectionPosition);
 public void focusLost(FocusEvent e) {
 startSelectionPosition = getSelectionStart();
 endSelectionPosition = getSelectionEnd();
 addFocusListener(focusListener);
 // CONTROL+ALT+S to view HTML source and change it
 Action viewSourceAction = new ViewSourceAction();
 getActionMap().put("viewSourceAction", viewSourceAction);
 InputMap inputMap = getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
 KeyStroke keyStroke = KeyStroke.getKeyStroke(
 java.awt.event.KeyEvent.VK_S, InputEvent.CTRL_MASK
 + InputEvent.ALT_MASK);
 inputMap.put(keyStroke, "viewSourceAction");
 // if a merge tag is at the end of a long line, JTextPane
 // inserts CR/LF into the middle of the merge tag, like this
 // "this is a really long line and at the end is a merge tag <merge \r\n
 // name="Case ID"/>"
 // We need to turn off line wrapping to prevent this.
 // see http://forum.java.sun.com/thread.jspa?forumID=57&threadID=326017
 // overriding setSize(..) and getScrollableTracksViewportWidth()
 public void setSize(Dimension d) {
 if (d.width < getParent().getSize().width)
 d.width = getParent().getSize().width;
 super.setSize(d);
 public boolean getScrollableTracksViewportWidth() {
 return false;
 class ViewSourceAction extends AbstractAction {
 public void actionPerformed(ActionEvent e) {
 try {
 HTMLEditorKit m_kit = (HTMLEditorKit) MyTextPane.this
 .getEditorKit();
 HTMLDocument m_doc = (HTMLDocument) MyTextPane.this
 .getDocument();
 StringWriter sw = new StringWriter();
 m_kit.write(sw, m_doc, 0, m_doc.getLength());
 sw.close();
 HtmlSourceDlg dlg = new HtmlSourceDlg(null, sw.toString());
 dlg.setVisible(true);
 if (!dlg.succeeded())
 return;
 StringReader sr = new StringReader(dlg.getSource());
 m_doc = createDocument();
 m_kit.read(sr, m_doc, 0);
 sr.close();
 setDocument(m_doc);
 } catch (Exception ex) {
 ex.printStackTrace();
 private HTMLDocument createDocument() {
 HTMLEditorKit htmlEditorKit = new HTMLEditorKit();
 StyleSheet styles = htmlEditorKit.getStyleSheet();
 StyleSheet ss = new StyleSheet();
 ss.addStyleSheet(styles);
 HTMLDocument doc = new HTMLDocument(ss);
 // doc.setParser(htmlEditorKit.getParser());
 // doc.setAsynchronousLoadPriority(4);
 // doc.setTokenThreshold(100);
 return doc;
 public Element getElementByTag(HTML.Tag tag) {
 HTMLDocument htmlDocument = (HTMLDocument) getDocument();
 Element root = htmlDocument.getDefaultRootElement();
 return getElementByTag(root, tag);
 public Element getElementByTag(Element parent, HTML.Tag tag) {
 if (parent == null || tag == null)
 return null;
 for (int k = 0; k < parent.getElementCount(); k++) {
 Element child = parent.getElement(k);
 if (child.getAttributes()
 .getAttribute(StyleConstants.NameAttribute).equals(tag))
 return child;
 Element e = getElementByTag(child, tag);
 if (e != null)
 return e;
 return null;
 public void mouseClicked(MouseEvent e) {
 public void mouseEntered(MouseEvent e) {
 public void mouseExited(MouseEvent e) {
 public void mouseReleased(MouseEvent e) {
 public void mousePressed(MouseEvent e) {
 if (e.getModifiers() == MouseEvent.BUTTON3_MASK) {
 Clipboard cb = Toolkit.getDefaultToolkit().getSystemClipboard();
 if (cb.getContents(this) == null || !isEditable() || !isEnabled()) {
 pasteMenuItem.setEnabled(false);
 } else {
 pasteMenuItem.setEnabled(true);
 if (getSelectedText() == null) {
 copyMenuItem.setEnabled(false);
 cutMenuItem.setEnabled(false);
 } else {
 copyMenuItem.setEnabled(true);
 if ((getBorder() == null) || !isEditable() || !isEnabled()) {
 cutMenuItem.setEnabled(false);
 } else {
 cutMenuItem.setEnabled(true);
 popupMenu.show(this, e.getX(), e.getY());
 public JPopupMenu getPopupMenu() {
 return popupMenu;
 * Creates the Popup menu with Cut,Copy,Paste menu items if it hasn't
 * already been created.
 private void createAndConfigurePopupMenu() {
 popupMenu = new JPopupMenu();
 clearMenuItem = new JMenuItem(new ClearAction());
 clearMenuItem.setText("Clear");
 // selectAllMenuItem = new JMenuItem(new SelectAllAction());
 // selectAllMenuItem.setText("Select All");
 cutMenuItem = new JMenuItem(new DefaultEditorKit.CutAction());
 cutMenuItem.setText("Cut");
 copyMenuItem = new JMenuItem(new DefaultEditorKit.CopyAction());
 copyMenuItem.setText("Copy");
 // when pasting, only paste the plain text (not any markup)
 PasteAction pasteAction = new PasteAction();
 pasteMenuItem = new JMenuItem(/* new DefaultEditorKit.PasteAction() */);
 pasteMenuItem.addActionListener(pasteAction);
 pasteMenuItem.setText("Paste");
 popupMenu.add(cutMenuItem);
 popupMenu.add(copyMenuItem);
 popupMenu.add(pasteMenuItem);
 popupMenu.add(new JPopupMenu.Separator());
 popupMenu.add(clearMenuItem);
 // popupMenu.add(selectAllMenuItem);
 setKeyStrokes();
 private void doPasteAction() {
 Clipboard cb = Toolkit.getDefaultToolkit().getSystemClipboard();
 Transferable content = cb.getContents(this);
 try {
 // when pasting, discard the markup
 String s = (String) content
 .getTransferData(DataFlavor.stringFlavor);
 HTMLDocument doc = (HTMLDocument) MyTextPane.this.getDocument();
 HTMLEditorKit kit = (HTMLEditorKit) MyTextPane.this.getEditorKit();
 doc.insertString(MyTextPane.this.getCaretPosition(), s, kit
 .getInputAttributes());
 } catch (Throwable exc) {
 exc.printStackTrace();
 class PasteAction implements ActionListener {
 public void actionPerformed(ActionEvent e) {
 doPasteAction();
 * Sets the short cut keys and actions for corresponding actions for keys.
 private void setKeyStrokes() {
 KeyStroke paste = KeyStroke.getKeyStroke(KeyEvent.VK_V,
 KeyEvent.CTRL_MASK);
 /** Performs pasteAction when short-cut key paste action is performed */
 Action pasteAction = new AbstractAction() {
 * Handles user clicked actions.
 * @param actionEvent -
 * ActionEvent object.
 public void actionPerformed(ActionEvent actionEvent) {
 doPasteAction();
 InputMap inputMap = getInputMap(JTextPane.WHEN_FOCUSED);
 getActionMap().put(inputMap.get(paste), pasteAction);
 public void actionPerformed(ActionEvent e) {
 if (e.getActionCommand().equals("Select All"))
 selectAll();
 else if (e.getActionCommand().equals("Clear"))
 clear();
 public void append(String s) {
 super.setText(getText() + s);
 public void clear() {
 startNewDocument();
 public void startNewDocument() {
 MyHTMLEditorKit editorKit = new MyHTMLEditorKit();
 setContentType("text/html");
 setEditorKit(editorKit);
 HTMLDocument document = (HTMLDocument) editorKit
 .createDefaultDocument();
 setDocument(document);
 // to enable the copy and paste from ms word (and others) to the
 // JTextPane, set
 // this client property. Sun Bug ID: 4765240
 document.putProperty("IgnoreCharsetDirective", Boolean.TRUE);
 document.setPreservesUnknownTags(false);
 class ClearAction extends AbstractAction {
 public void actionPerformed(ActionEvent e) {
 startNewDocument();
 class SelectAllAction extends AbstractAction {
 public void actionPerformed(ActionEvent e) {
 selectAll();
 class HtmlSourceDlg extends JDialog {
 protected boolean m_succeeded = false;
 protected JTextArea m_sourceTxt;
 public HtmlSourceDlg(JFrame parent, String source) {
 super(parent, "HTML Source", true);
 JPanel pp = new JPanel(new BorderLayout());
 pp.setBorder(new EmptyBorder(10, 10, 5, 10));
 m_sourceTxt = new JTextArea(source, 20, 60);
 m_sourceTxt.setFont(new Font("Courier", Font.PLAIN, 12));
 JScrollPane sp = new JScrollPane(m_sourceTxt);
 pp.add(sp, BorderLayout.CENTER);
 JPanel p = new JPanel(new FlowLayout());
 JPanel p1 = new JPanel(new GridLayout(1, 2, 10, 0));
 JButton bt = new JButton("Save");
 ActionListener lst = new ActionListener() {
 public void actionPerformed(ActionEvent e) {
 m_succeeded = true;
 dispose();
 bt.addActionListener(lst);
 p1.add(bt);
 bt = new JButton("Cancel");
 lst = new ActionListener() {
 public void actionPerformed(ActionEvent e) {
 dispose();
 bt.addActionListener(lst);
 p1.add(bt);
 p.add(p1);
 pp.add(p, BorderLayout.SOUTH);
 getContentPane().add(pp, BorderLayout.CENTER);
 pack();
 setResizable(true);
 setLocationRelativeTo(parent);
 public boolean succeeded() {
 return m_succeeded;
 public String getSource() {
 return m_sourceTxt.getText();
 public void addToPopupMenuAboveEditItems(JMenuItem menuItem) {
 if (!bTopSeperatorInserted) {
 popupMenu.insert(new JPopupMenu.Separator(), 0);
 bTopSeperatorInserted = true;
 popupMenu.insert(menuItem, topMenuItemInsertionIndex);
 ++topMenuItemInsertionIndex;
 public static void main(String args[]) {
 JFrame frame = new JFrame("MyTextPane");
 MyTextPane textPane = new MyTextPane();
 HTMLDocument doc = (HTMLDocument) textPane.getDocument();
 HTMLEditorKit kit = (HTMLEditorKit) textPane.getEditorKit();
 StringWriter buf = new StringWriter();
 // MyHTMLWriter w = new MyHTMLWriter(buf, (HTMLDocument) doc, 0,
 // doc.getLength());
 // w.setLineLength(150);
 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 JScrollPane scrollPane = new JScrollPane(textPane);
 String s = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa bbbb cccc dddd eeee ffff gggg hhhh iiii jjjj aaaaaaaaaaaaaaaaaaaaaaa";
 System.out
 .println("\nthe long string prior to calling JTextPane.setText(..) WITH NO NEWLINES\ns="
 + s);
 textPane.setText(s);
 String sOut = textPane.getText();
 System.out
 .println("\n\nthe text returned from calling JTextPane.setText(..) -> it inserted CR & newline after the ffff\n");
 System.out.println("textPane.getText()=" + sOut);
 frame.getContentPane().add(scrollPane, BorderLayout.CENTER);
 frame.setSize(500, 700);
 frame.setVisible(true);
class MyHTMLWriter extends HTMLWriter {
 public MyHTMLWriter(Writer buf, HTMLDocument doc, int pos, int len) {
 super(buf, doc, pos, len);
 protected void setLineLength(int l) {
 super.setLineLength(l);
class MyHTMLEditorKit extends HTMLEditorKit {
 public void write(Writer out, Document doc, int pos, int len)
 throws IOException, BadLocationException {
 if (doc instanceof HTMLDocument) {
 MyHTMLWriter w = new MyHTMLWriter(out, (HTMLDocument) doc, pos, len);
 w.setLineLength(200);
 w.write();
 } else if (doc instanceof StyledDocument) {
 MinimalHTMLWriter w = new MinimalHTMLWriter(out,
 (StyledDocument) doc, pos, len);
 w.write();
 } else {
 super.write(out, doc, pos, len);
}and

How to get exact height of HTML line with SUB tag in JTextPane?

Hi, this is my first post. I`ve been searching forum for an answer for a week, but didn`t find one.
I have HTMLDocument inside JTextPane(exacty inside my class that extends it - MyTextPane). I want to do some custom painting in JTextPane so I need to be able to know exact pixel witdh for each line in the document. Easy except one thing, when I use SUB tag the width of the line cannot be simply calculated using FontMetrics, because I don`t know if the text inside SUB tag has lower font size and I don`t know its Y offset to normal line.
I tried get these information from HTMLDocument using attributes from leafElements representing lines, but there seems to be a problem too.
I pass this text:
"(1) LinejW (2) TextB"
to setText method of MyTextPane, this method is overriden so it changes text Font
public void setText(String s) {
super.setText(s);
setJTextPaneFont(this, new Font("Arial",Font.PLAIN,36), Color.black);
}This is how the Element Structure looks like:
Format is Element +": "+elementText+"|"+fontFamily+" "+fontSize
BranchElement(html) 0,22: \n(1)?LinejW (2)?TextB\n|Monospaced 12
---BranchElement(head) 0,1: \n|Monospaced 12
------BranchElement(p-implied) 0,1: \n|Monospaced 12
---------LeafElement(content) 0,1: \n|Arial 36
---BranchElement(body) 1,22: (1) LinejW (2) TextB\n|Monospaced 12
------BranchElement(p-implied) 1,22: (1) LinejW (2) TextB\n|Monospaced 12
---------LeafElement(content) 1,9: (1) Line|Arial 36
---------LeafElement(content) 9,11: jW|Arial 36 <-----------THIS IS THE LOWER INDEX
---------LeafElement(content) 11,12: |Arial 36 <-----------THIS IS just space character '\u020'
---------LeafElement(content) 12,21: (2) TextB|Arial 36
---------LeafElement(content) 21,22: \n|Arial 36
The height of Arial 36 is according to FontMetrics 43(and it really is), but height of the lowerIndex is just 40 pixels(on the screen), not 43 as I would expect. And I still dont have offset, where does the lower index starts paint itself.
Is there any problem with my setText method, so that it changes font style for LOWER INDEX?
I am using JTextPane as notEditable, with just one font style for entire document.
Any suggestion?

Is there any other way to get these information. I just found that I need that information before I put text it in the document.
For example I am would like to generate lines:
paragraph1 - text1
 text2
paragraph2 - text1
 text2
 text3
paragraph3some note - text1
 text2
normal text line
I know what font line will be and I know its AttributeSet. I am trying to get appropriate number of spaces (or left indent) for text2,text3...lines. Then I will pass that string to setText method of JTextPane.
I am unable to get appropriate width for "paragraph3some note - ", since text in SUB tag uses probably different font size.
I am really sorry to bother again. I will think twice what I need before I posting.
You`ve been very helpful so far Stas.
Thanks.

Line Number in JTextPane

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

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

Pasting in JTextPane adds the text in the next line not the cursor positon

Hi,
I have a problem with pasting the text in a JTextPane. The content type is text/html and the document is HTMLDocument. When I paste the text, it goes to the next line instead of inserting at the current cursor position. The problem is when pasting, the html writer adds a paragraph tag with the selected text. Can any one please help me with this issue for pasting a selected text in the position where I want, without loosing the character attributes and other html tags, but only the paragaraph tags?
Thanks
siju

Hi Tariq,
If you are specifying some .prt files(printer definition files) in the desformat, please examine them if you have set the width and height to proper values.
Otherwise look at $ORACLE_HOME/reports/printers/dflt.prt (default file) and see if the width and height are set to proper values.
Thanks,
Siva B

How to get the bold texts in JTextPane?

How to get the bold texts in JTextPane?

I believe you need to look at the Elements of the Document. Use the Document.getDefaultRootElement() method to get the first root Element. From there you can iterate through all the Elements. You should then be able to check the attributes of the element to see if it contains the Bold attribute using something like:
AttributeSet attributes = element.getAttributes();
if ( attributes.containsAttribute(StyleConstants.Bold, Boolean.TRUE)
// do processing here

How to make selected text in a JTextPane HyperLink

Hi guys,
I am trying to Hyperlink the displayed text in JTextPane but its not occuring.Does anybody has some suggestion.I am posting the part of my code which i was using to hyperlink the given text but its not working....Plz give some suggestions regarding this....
public void addHyperLink()
Document doc;
URL url=null;
try {
url = new URL("http://www.gmail.com");
} catch (MalformedURLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
SimpleAttributeSet attributeSet= new SimpleAttributeSet();
attributeSet.addAttribute(HTML.Attribute.HREF, url.toString());
SimpleAttributeSet attributeSet1= new SimpleAttributeSet();
attributeSet1.addAttribute(HTML.Tag.A,attributeSet);
String text=pane.getText(); // pane is instance of JTextPane
try {
doc=pane.getDocument();
doc.insertString(0,text,attributeSet1);
} catch (BadLocationException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}

Search the forum this question is asked a lot. Also if you post code please post a Short,Self Contained, Compilable and Executable, Example Program and use code format tags.

TableCellRenderer with JTextPane and HTML

I'm writing a TableCellRenderer that will be rendering HTML content using a custom extension to the JTextPane class. Where I'm having trouble is in calculating the necessary height to set the table row based on the content of the cell (in this case HTML text in my JTextPane component). I know the width of the table cell and I can figure out the width of the content (taking into account the formatting because of the HTML content). This all works perfectly until the column width shrinks enough to cause the underlying view to word wrap.
Here is the code snippet from my JTextPane to count the number of lines of text and calculate the width of the content
public int getWidthOfContent() {
 getLineCount();
 return m_iWidthOfContent;
public int getWidthOfContent(int p_iWidthOfArea) {
 getLineCount(p_iWidthOfArea);
 return m_iWidthOfContent;
public int getLineCount(int iComponentWidth) {
 int iWidth = 0;
 int iBreakCount = 0;
 int iHardBreakCount = 0;
 int iTotalWidth = 0;
 int iTotalContentWidth = 0;
 int iMaxHeight = 0;
 Document doc = getDocument();
 ElementIterator it = new ElementIterator(doc.getDefaultRootElement());
 StyleSheet styleSheet = null;
 if(doc instanceof HTMLDocument) {
 styleSheet = ((HTMLDocument)doc).getStyleSheet();
 if(iComponentWidth == -1) {
 iWidth = getWidth();
 else {
 iWidth = iComponentWidth;
 Element e;
 while ((e=it.next()) != null) {
 AttributeSet attributes = e.getAttributes();
 Enumeration enumeration = attributes.getAttributeNames();
 boolean bBreakDetected = false;
 while(enumeration.hasMoreElements()) {
 Object objName = enumeration.nextElement();
 Object objAttr = attributes.getAttribute(objName);
 if(objAttr instanceof HTML.Tag) {
 HTML.Tag tag = (HTML.Tag)objAttr;
// if(tag == HTML.Tag.BODY) {
// UCSParagraphView pv = new UCSParagraphView(e);
// if(pv.willWidthBreakView(iWidth)) {
// iHardBreakCount++;
 FontMetrics fontMetrics = null;
 if(styleSheet != null && styleSheet.getFont(attributes) != null) {
 fontMetrics = getFontMetrics(styleSheet.getFont(attributes));
 if(fontMetrics != null && fontMetrics.getHeight() > iMaxHeight) {
 iMaxHeight = fontMetrics.getHeight();
 if(tag.breaksFlow()) {
 //This must be a breaking tag....this will add another line to the count
 bBreakDetected = true;
 if(tag.equals(HTML.Tag.BR) || tag.isBlock() && (!tag.equals(HTML.Tag.HEAD) && !tag.equals(HTML.Tag.BODY))) {
 if(iTotalContentWidth == 0) {
 iTotalContentWidth = iTotalWidth;
 iTotalWidth = 0;
 else if(iTotalWidth > iTotalContentWidth) {
 iTotalContentWidth = iTotalWidth;
 iTotalWidth = 0;
 else {
 iTotalWidth = 0;
 if(tag.equals(HTML.Tag.H1) || tag.equals(HTML.Tag.H2) || tag.equals(HTML.Tag.H3) || tag.equals(HTML.Tag.H4)) {
 iHardBreakCount += 3; //These count as three lines (Blank - Content - Blank)
 else {
 iHardBreakCount++;
 iBreakCount++;
 if(!bBreakDetected) {
 Font font;
 FontMetrics fontMetrics;
 if(e.getDocument() instanceof HTMLDocument) {
 font = ((HTMLDocument)e.getDocument()).getStyleSheet().getFont(e.getAttributes());
 fontMetrics = getFontMetrics(font);
 else {
 font = getFont();
 fontMetrics = getFontMetrics(font);
 int iRangeStart = e.getStartOffset();
 int iRangeEnd = e.getEndOffset();
 if(fontMetrics.getHeight() > iMaxHeight) {
 iMaxHeight = fontMetrics.getHeight();
 if(e.isLeaf()) {
 String strText;
 try {
 strText = this.getText(iRangeStart, iRangeEnd - iRangeStart);
 if(strText.equals("\n")) {
 //iBreakCount++;
 iTotalWidth += SwingUtilities.computeStringWidth(fontMetrics, strText);
 catch (BadLocationException ex) {
 //Something happened.....don't care....just eat the exception
 m_iMaxFontHeight = iMaxHeight;
 m_iWidthOfContent = iTotalWidth;
 m_iHardBreakCount = iHardBreakCount;
 if(iWidth > 0) {
 int iLineCount = (iTotalWidth / iWidth) + iBreakCount;
 return iLineCount;
 return 1;
}And here is the code from my TableCellRenderer that uses the above information
 public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected,
 boolean hasFocus, int row, int column) {
 if(ValidationHelper.hasText(value) && value.toString().indexOf("<html>") != -1) {
 UCSHTMLTextPane pane = new UCSHTMLTextPane();
 pane.setText(ValidationHelper.getTrimmedText(value.toString()));
 BigDecimal lWidthCell = new BigDecimal(table.getCellRect(row, column, false).getWidth() - 15);
 BigDecimal lWidthContent = new BigDecimal(pane.getWidthOfContent(lWidthCell.intValue()));
 int iHardBreakCount = pane.getHardBreakCount();
 BigDecimal lLineCount = lWidthContent.divide(lWidthCell, BigDecimal.ROUND_CEILING);
 int iLineCount = lLineCount.intValue();
 double dWidthCell = lWidthCell.doubleValue();
 double dWidthContent = lWidthContent.doubleValue();
 double dWidthContentPlusFivePercent = dWidthContent + (dWidthContent * .01);
 double dWidthContentMinumFivePercent = dWidthContent - (dWidthContent * .01);
 if(dWidthCell >= dWidthContentMinumFivePercent && dWidthCell <= dWidthContentPlusFivePercent) {
 iLineCount++;
 iLineCount += iHardBreakCount;
 int iMaxFontHeight = pane.getMaxFontHeight();
 int iHeight = (iMaxFontHeight * iLineCount) + 5;
 if ( (iLineCount > 0) && (table.getRowHeight(row) != iHeight)) {
 pane.setPreferredSize(new Dimension(0, iHeight));
 if(m_bAutoAdjustHeight) {
 table.setRowHeight(row, iHeight);
 if(iLineCount == 1) {
 if(iHeight != table.getRowHeight()) {
 if(m_bAutoAdjustHeight) {
 table.setRowHeight(iHeight);
 setComponentUI(pane, table, row, column, isSelected, hasFocus);
 return pane;
}Any suggestions?

Hello,
You must initialize correctly your JTextPane like this:
javax.swing.text.html.HTMLEditorKit htmlEditorKit = new javax.swing.text.html.HTMLEditorKit();
javax.swing.text.html.HTMLDocument htmlDoc = (javax.swing.text.html.HTMLDocument)htmlEditorKit.createDefaultDocument();
setEditorKit(htmlEditorKit);
setDocument(htmlDoc);
setEditable(true);
setContentType("text/html");

JTextPane delimiter attribute

Similar Messages

Maybe you are looking for