Dispatch KeyEvent to a JTextPane
Hello,
how can i dispatch a KeyEvent to a JTextpane object?
i tried to delay it for 100 millisecs, but nothing happened. (so no custom event just the generated ones by Java, only delayed )
I wanted to introduce some special keycombinations into my app, so i should have use keyevent stack.
But a simple delay doesn't work at all. I know the doclick methods in AbstractButton. Is any similar around JtextPane?
Thanks is advance!
textPane.getDocument().insertString(...);
Similar Messages
-
How to pass a KeyEvent to a JTextPane?
Hi,
I have a JTextPane and I display a JPopupMenu on top of it. The menu implements a MenuKeyListener to catch typed text and filters the menu content based on the typed text.
I also need to insert the typed characters into the document in the underlying JTextPane. So, I have a KeyEvent (MenuKeyEvent actually) and I need to make the JTextPane to process it as if it was produced by the user, i.e. match it against the action map and do the document edit for me.
I tried to call the JTextPane.processKeyEvent(e) method but it doesn't work. Any hints?
Thanks a lot!
RobertWell, I'm wondering if it isn't working because the event is already consumed?
Perhaps you can construct a duplicate KeyEvent and pass that along instead?
If you need further help then you need to create a [url http://homepage1.nifty.com/algafield/sscce.html]Short, Self Contained,
Compilable and Executable, Example Program that demonstrates the
incorrect behaviour, because I can't guess exactly what you are doing
based on the information provided.
And don't forget to use the [url http://forum.java.sun.com/help.jspa?sec=formatting]Code Formatting Tags so the code retains its
original formatting. -
Hi to all... I am facing a big problem. I want to manually dispatch KeyEvent. I can do this with AWT, i.e., create a KeyEvent Object with the desired character and call
"ta.dispatchEvent();"(where ta is java.awt.TextArea). But when I try it with the swing JTextArea it gives me a page long Exception list.Try to run this program:
import java.awt.event.*;
import java.awt.*;
import javax.swing.*;
public class Dispat extends JFrame
JTextArea ta = new JTextArea("");
JButton jb = new JButton("Press this key to dispatch");
int ji = 0;
public Dispat()
addWindowListener(new WindowAdapter()
{ public void windowClosing(WindowEvent ev)
{ dispose();
System.exit(0);}});
setBounds(1,1,600,350);
getContentPane().setLayout(null);
ta.setBackground(Color.pink);
ta.setBounds(10,60,400,200);
getContentPane().add(ta);
jb.setBounds(10,20,200,20);
getContentPane().add(jb);
setVisible(true);
jb.addActionListener(new ActionListener()
{ public void actionPerformed(ActionEvent be)
char c = jb.getText().charAt(ji++);
ta.dispatchEvent(new
KeyEvent(ta,KeyEvent.KEY_TYPED,0,0,KeyEvent.VK_UNDEFINED,c));
public static void main(String[] args )
new Dispat();
unformatted
import java.awt.event.*;
import java.awt.*;
import javax.swing.*;
public class Dispat extends JFrame
JTextArea ta = new JTextArea("");
JButton jb = new JButton("Press this key to dispatch");
int ji = 0;
public Dispat()
addWindowListener(new WindowAdapter()
{ public void windowClosing(WindowEvent ev)
{ dispose();
System.exit(0);}});
setBounds(1,1,600,350);
getContentPane().setLayout(null);
ta.setBackground(Color.pink);
ta.setBounds(10,60,400,200);
getContentPane().add(ta);
jb.setBounds(10,20,200,20);
getContentPane().add(jb);
setVisible(true);
jb.addActionListener(new ActionListener()
{ public void actionPerformed(ActionEvent be)
char c = jb.getText().charAt(ji++);
ta.dispatchEvent(new
KeyEvent(ta,KeyEvent.KEY_TYPED,0,0,KeyEvent.VK_UNDEFINED,c));
public static void main(String[] args )
new Dispat(); -
I have a problem with the execution of the commands in the event-block of my xlet. I implements the KeyListener interface and when the user press OK and a HTextButton has the focus it start to execute different commands.
For example I have the focus in a x HTButton, I press OK, then I set visible a HContainer that show to the user that xlet is connectiong on the web. After this command I try to connect via return channel. but the xlet doesn't show the HContainer: it seems that the xlet try to execute all command line of the event-block and only when it fish all of them can show to the screen the HContainer. Does anybody know how to solve this problem?
Thank you in advanceThis problem (is I've understood it correctly) could be a result of single-threaded nature of AWT-thread (see, for instance http://java.sun.com/j2se/1.5.0/docs/guide/deployment/deployment-guide/upgrade-guide/article-07.htm).
A call to KeyListener#keyXXX() methods is a result of dispatching KeyEvent and a call to Component#paint() is a result of dispatching PaintEvent. So the paint() operation can't start before the keyXXX() method returns. -
Hi,
I've an application in wich there are some sessions. On some user action(in fact on user action on some specific component), a session talks with the server. The response can come after a long time. So, i'd like to buffer the keyboard inputs.
I've create a KeyEventDispatcher. If the KeyEvent is associate with a buzy session, it save the KeyEvent in the session's thread. Once the session isn't buzy, its thread creates another wich is responsible to dispatch the buffered KeyEvents. So i'm invoking a Runnable by SwingUtilities.invokateLater where i give the focus to the component in the session wich should recieve the KeyEvent. Next, i invokate component.dispatchEvent and finally regive focus to the component wich had it before (for instance in a another session).
To avoid that my KeyEventDispatcher buffers this KeyEvent (because my buffer is not empty), i've inherited KeyEvent (say WiKeyEvent) wich is a "empty" class (just for instanceof test). But, when i'm debugging, i see for a key typed three events. The second have a unknow key code, so i can't create a WiKeyEvent. If i try, i have an IllegalArgumentException like the API says for the KeyEvent constructor.
And so, when i'm doing a simple test : having a session, lauching a action so that the session is buzy, typing a key; i could see that the KeyEvent is buffered, next it is dispatched but nothing appears (it should be dispatched to JTextField).
I've tried to search in the web for ideas but i've not found. So my questions are :
- do you think it's a good way ?
- if not, have you some documentations, links or ideas ?
- if yes, have you some ideas why nothing appears ?
Thanks a lot for your help,
Fade.Hi,
I've made some changes and it works a bit better.
Now my KeyEventDispatcher remembers the KeyEvents wich are buffered in the buzy session so that i don't have to recreate the KeyEvents.
I don't use SwingUtilities.invokateLater but SwingUtilities.invokateAndWait. So for each KeyEvent i redispatch when the session is not buzy doing that :
1) Give the focus with SwingUtilities.invokateAndWait to the component who has to recieve the focus
2) Dispatch KeyEvent by invokating target.dispatchEvent with SwingUtilities.invokateAndWait
3) Give the focus with SwingUtilities.invokateAndWait with the old focus owner
The next step is to dispatch all the KeyEvents except if the session becomes buzy in the second step. But i find that solution not "pretty", because during those operations the user could type some input. So i have to buffer the input of other sessions ...
Futher more, he could be confusing of the lost of the focus.
So, i'm asking if there is a manner to dispatch KeyEvents to a component wich is not the focus owner ?
Thanks a lot for your help,
Fade. -
JTextPane buffer and KeyEvent under Windows/Linux
Hi,
I have written a mud client but have 2 problems:
1. Many data are written in the JTextPane and make my client slower and slower. Is there a way to set the max buffer length of this Component? Something like setting a max number lines and when it exceed, it automatically delete the first lines.
2. the other problem is about KeyEvent. I use the constant defined in that class to perform test but it's not working. For example, if the user type the key '8' on the numpad, its code under Linux is not VK_NUMPAD8, anyway the code remains unchanged whatever NumLock is on or off. Should I change my code if the client is used under Windows or Linux??
Thanks in advance.Check out this tutorial:
http://java.sun.com/docs/books/tutorial/uiswing/components/generaltext.html
In the part customizing a component there's also something about the keyevents you want to use ...
Gianni -
Dispatching text on many columns in JTextPane
hi !
i m looking to perform a text dispatching on columns in a JTextPane component (as it is doing in word-processor software , MS-Word for example), so an initial text in the component must be displayed on one or many columns after the user have choice the number of columns.
Any help will be appreciated !
Thanks :)The available texting packages are:
$5 for 250 messages
$10 for 500 messages + unlimited texts to other Verizon subscribers
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For an additional $30/month, your Dad could upgrade to the "Talk & Text" version of a Family Share plan, which would include unlimited texting for all lines on that plan. -
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 = "<p>aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa bbbb cccc dddd eeee ffff gggg hhhh iiii jjjj aaaaaaaaaaaaaaaaaaaaaaa</p>";
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 PMok, 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 = "<p>aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa bbbb cccc dddd eeee ffff gggg hhhh iiii jjjj aaaaaaaaaaaaaaaaaaaaaaa</p>";
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 -
Exception while adding a chrtpanel(component of JFreeChart) to JTextPane.
hi,
Please help for solving the following exception while adding a chrtpanel(component of JFreeChart) to JTextPane
java.lang.ArrayIndexOutOfBoundsException: No such child: 0
at java.awt.Container.getComponent(Container.java:237)
at javax.swing.text.ComponentView$Invalidator.cacheChildSizes(ComponentView.jav
a:399)
at javax.swing.text.ComponentView$Invalidator.doLayout(ComponentView.java:383)
at java.awt.Container.validateTree(Container.java:1092)
at java.awt.Container.validate(Container.java:1067)
at javax.swing.text.ComponentView$Invalidator.validateIfNecessary(ComponentView
.java:394)
at javax.swing.text.ComponentView$Invalidator.getPreferredSize(ComponentView.ja
va:427)
at javax.swing.text.ComponentView.getPreferredSpan(ComponentView.java:119)
at javax.swing.text.FlowView$LogicalView.getPreferredSpan(FlowView.java:679)
at javax.swing.text.FlowView.calculateMinorAxisRequirements(FlowView.java:214)
at javax.swing.text.BoxView.checkRequests(BoxView.java:913)
at javax.swing.text.BoxView.getMinimumSpan(BoxView.java:542)
at javax.swing.text.BoxView.calculateMinorAxisRequirements(BoxView.java:881)
at javax.swing.text.BoxView.checkRequests(BoxView.java:913)
at javax.swing.text.BoxView.setSpanOnAxis(BoxView.java:325)
at javax.swing.text.BoxView.layout(BoxView.java:682)
at javax.swing.text.BoxView.setSize(BoxView.java:379)
at javax.swing.plaf.basic.BasicTextUI$RootView.setSize(BasicTextUI.java:1599)
at javax.swing.plaf.basic.BasicTextUI.getPreferredSize(BasicTextUI.java:801)
at javax.swing.JComponent.getPreferredSize(JComponent.java:1275)
at javax.swing.JEditorPane.getPreferredSize(JEditorPane.java:1212)
at javax.swing.ScrollPaneLayout.layoutContainer(ScrollPaneLayout.java:769)
at java.awt.Container.layout(Container.java:1020)
at java.awt.Container.doLayout(Container.java:1010)
at java.awt.Container.validateTree(Container.java:1092)
at java.awt.Container.validateTree(Container.java:1099)
at java.awt.Container.validateTree(Container.java:1099)
at java.awt.Container.validateTree(Container.java:1099)
at java.awt.Container.validateTree(Container.java:1099)
at java.awt.Container.validateTree(Container.java:1099)
at java.awt.Container.validateTree(Container.java:1099)
at java.awt.Container.validateTree(Container.java:1099)
at java.awt.Container.validateTree(Container.java:1099)
at java.awt.Container.validateTree(Container.java:1099)
at java.awt.Container.validate(Container.java:1067)
at javax.swing.RepaintManager.validateInvalidComponents(RepaintManager.java:353
at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQu
eueUtilities.java:116)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:178)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:454)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.ja
va:201)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java
:151)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)I tried with the following link
http://www.onjava.com/pub/a/onjava/2004/03/10/blackmamba.html?page=2
one place this one is getting solved. Some other places atill the exeception is present. -
Problems with JTextPane line wrapping
Hi to all.
I'm using a code like this to make editable a figure that I paint with Java 2D. This JTextPane don't has a static size and for that, the text in it cannot be seen affected by the natural line wrap of the JTextPane component. The problem is that I have to set a maximun size for the JTextPane and I want to use the line wrap only when the width of the JTextPane be the maximun width. How can I do this?
public class ExampleFrame extends JFrame {
ExamplePane _panel;
public ExampleFrame() {
this.setSize(600, 600);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
_panel = new ExamplePane();
getContentPane().add(_panel);
this.setVisible(true);
public static void main(String[] args) {
ExampleFrame example = new ExampleFrame();
public class ExamplePane extends JPanel {
public ExamplePane() {
this.setBackground(Color.RED);
this.setLayout(null);
this.add(new ExampleText());
public class ExampleText extends JTextPane implements ComponentListener, DocumentListener,
KeyListener {
public ExampleText() {
StyledDocument doc = this.getStyledDocument();
MutableAttributeSet standard = new SimpleAttributeSet();
StyleConstants.setAlignment(standard, StyleConstants.ALIGN_RIGHT);
doc.setParagraphAttributes(0, 0, standard, true);
this.setText("Example");
this.setLocation(300, 300);
this.setSize(getPreferredSize());
this.addComponentListener(this);
getDocument().addDocumentListener(this);
this.addKeyListener(this);
public void componentResized(ComponentEvent e) {
public void componentMoved(ComponentEvent e) {
public void componentShown(ComponentEvent e) {
public void componentHidden(ComponentEvent e) {
public void insertUpdate(DocumentEvent e) {
Dimension d = getPreferredSize();
d.width += 10;
setSize(d);
public void removeUpdate(DocumentEvent e) {
public void changedUpdate(DocumentEvent e) {
public void keyTyped(KeyEvent e) {
public void keyPressed(KeyEvent e) {
public void keyReleased(KeyEvent e) {
}Thanks for read.I'm working hard about that and I can't find the perfect implementation of this. This is exactly what I want to do:
1. I have a Ellipse2D element painted into a JPanel.
2. This ellipse is painted like a circle.
3. Into the circle there's a text area, that user use to name the cicle.
4. The text area is a JTextPane.
5. When the user insert a text area, it can increase it size, but it can't be bigger than the circle that it contains.
6. There is a maximun and a minimun size for the circle.
7. When the user write into de JTextPane, it grows until arriving at the limit.
8. When the JTextPane has the width size limit, if the user writes more text into it, the JTextPane write it into another line.
9. The size of the JTextPane has to be the optimun size, it cannot have empty rows or empty lines.
This code does all this except 9, cause if the user remove some text of the text area, the form of the JTextPane changes to a incorrect size.
public class ExampleFrame extends JFrame {
ExamplePane _panel;
public ExampleFrame() {
this.setSize(600, 600);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
_panel = new ExamplePane();
getContentPane().add(_panel);
this.setVisible(true);
public static void main(String[] args) {
ExampleFrame example = new ExampleFrame();
public class ExamplePane extends JPanel {
public ExamplePane() {
this.setBackground(Color.RED);
this.setLayout(null);
this.add(new ExampleText());
public class ExampleText extends JTextPane implements ComponentListener, DocumentListener,
KeyListener {
public ExampleText() {
StyledDocument doc = this.getStyledDocument();
MutableAttributeSet standard = new SimpleAttributeSet();
StyleConstants.setAlignment(standard, StyleConstants.ALIGN_CENTER);
doc.setParagraphAttributes(0, 0, standard, true);
this.setText("Example");
this.setLocation(300, 300);
this.setSize(getPreferredSize());
//If it has the maximun width and the maximun height, the user cannot
//write into the JTextPane
/*AbstractDocument abstractDoc;
if (doc instanceof AbstractDocument) {
abstractDoc = (AbstractDocument) doc;
abstractDoc.setDocumentFilter(new DocumentSizeFilter(this, 15));
this.addComponentListener(this);
getDocument().addDocumentListener(this);
this.addKeyListener(this);
public void componentResized(ComponentEvent e) {
public void componentMoved(ComponentEvent e) {
public void componentShown(ComponentEvent e) {
public void componentHidden(ComponentEvent e) {
public void insertUpdate(DocumentEvent e) {
Runnable doRun = new Runnable() {
public void run() {
int MAX_WIDTH = 200;
Dimension size = getSize();
Dimension preferred = getPreferredSize();
if (size.width < MAX_WIDTH) {
size.width += 10;
} else {
size.height = preferred.height;
setSize(size);
SwingUtilities.invokeLater(doRun);
public void removeUpdate(DocumentEvent e) {
this.setSize(this.getPreferredSize());
public void changedUpdate(DocumentEvent e) {
public void keyTyped(KeyEvent e) {
public void keyPressed(KeyEvent e) {
public void keyReleased(KeyEvent e) {
}I know that the problem is into the removeUpdate method, but I have to set to the JTextPane, allways the optimun size, how can I do this?
Thanks to all.
Edited by: Daniel.GB on 06-jun-2008 18:32 -
Have a problem at the moment with key events and mouse drag.
We have overriden the defaultKeyboardFocusManager, to include one new method, below if ot helps....
@Override
public boolean dispatchKeyEvent(KeyEvent e) {
if (e.getKeyCode() == KeyEvent.VK_S) {
if (e.getID() == KeyEvent.KEY_PRESSED) {
sKeyDown = true;
} else if (e.getID() == KeyEvent.KEY_RELEASED) {
sKeyDown = false;
return super.dispatchKeyEvent(e);
So User action is to hold down S key, left click mouse and drag. If S key release while drag in progress key event isn't recognised. Once the is mouse released and the drop completed the application still believes the S key pressed?
Should the key events still be registered while a drag is in operation???
Cheers, JK.Two problems arrise to my head:
First, in a Windows environment (I don't no for other OS) when you press a character key (or space bar) for one second it begins to repeatively press the button to make a series of characters. In that case, the key listener will receive a KEY_PRESSED and KEY_RELEASED (and KEY_TYPED) for each letter, so if you hold down the S key while dragging, the KeyListener you are using will receive a KEY_RELEASED Event befor the user actually released the key, which is a problem that I don't know how to solve, sorry. Well, you can go in the control panel and change the options about this feature for your computer, but you don't know what will be the settings in the computer of the other users.
The second Problem is that it is very important that the component you will be clicking on is the key listener because if not, clicking will make your listener to lose focus while the key is pressed and the KEY_RELEASED event won't be dispatched to your listener. But maybe your overridding of the dispatchKeyEvent solves this, but I'm not sure.
Anyway I hope this helps (even if I doubt it) -
Hi,
I am working on a project for a system that will not have a mouse. Ideally I would like the screen to function almost like a video game would -- even though it is not a game. By this I mean that all keystrokes are handled at the window level and dispatched to the correct component depending on the keystroke.
Currently I have inhibited the ability of components on the form to gain focus. When I press a key, the listener associated with the JFrame responds... I then attmpt to use dispatchEvent inside of a case statement to route events to the proper components (In this case a JTextField) The problem is, is that allthough the dispatchEvent call is made, the JTextField doesn't do anything with it. I am just typing characters so I would expect all these keystrokes to show up in the JTextField, but it does not work.
Does anybody know why this might not work?
-BenjaminHere is a code snippet that actually seems to work. The problem was that I was dispatching a keyPressed event rather than a keyTyped.
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
class NoFocus extends JFrame implements KeyListener {
private class JTextFieldNF extends JTextField {
public JTextFieldNF(int size) {
super(size);
public boolean isFocusTraversable() {
return false;
JTextFieldNF tfnf;
public NoFocus() {
tfnf = new JTextFieldNF(20);
getContentPane().setLayout(new FlowLayout());
getContentPane().add(tfnf);
addKeyListener(this);
public void keyPressed(KeyEvent evt) {
public void keyTyped(java.awt.event.KeyEvent evt) {
switch (evt.getKeyCode()) {
// Route up and down key somewhere else
case KeyEvent.VK_UP:
case KeyEvent.VK_DOWN:
break;
// All keystrokes not expicitly used are piped to tfnf
default:
tfnf.dispatchEvent(evt);
public void keyReleased(java.awt.event.KeyEvent A) {
public static void main(String args[])
JFrame frame = new NoFocus();
frame.setDefaultCloseOperation( EXIT_ON_CLOSE );
frame.setSize(200,200);
frame.setVisible(true); -
I'd like to create a complete text editor so, i made these two code, but the first it's based on jtextpane and the second on a jeditorpane. I want to link toghether the second with the firt code , to have a cpmplete text editor. The problem is that i don't know how to do this. The fisrt think i thought to do was transform the jtext in the fisrt code in a jeditor but jeditor don't recognize the function 'append' .. Could someone help me? Thanks
* To change this template, choose Tools | Templates
* and open the template in the editor.
package GUI;
import java.awt.Toolkit;
import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.StringSelection;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.OutputStreamWriter;
import javax.swing.JFileChooser;
import javax.swing.JOptionPane;
import javax.swing.filechooser.FileNameExtensionFilter;
* @author Elena
public class Form extends javax.swing.JFrame {
String ClipboardData = "";
private Object CurrentFileDirectory;
* Creates new form Form
public Form() {
initComponents();
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jScrollPane2 = new javax.swing.JScrollPane();
editorpane = new javax.swing.JEditorPane();
jMenuBar1 = new javax.swing.JMenuBar();
Open = new javax.swing.JMenu();
New = new javax.swing.JMenuItem();
Openfile = new javax.swing.JMenuItem();
Save = new javax.swing.JMenuItem();
SaveAs = new javax.swing.JMenuItem();
Exit = new javax.swing.JMenuItem();
Cut = new javax.swing.JMenu();
jMenuItem6 = new javax.swing.JMenuItem();
Copy = new javax.swing.JMenuItem();
Paste = new javax.swing.JMenuItem();
Delete = new javax.swing.JMenuItem();
SelectAll = new javax.swing.JMenuItem();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("Java Text Editor");
jScrollPane2.setViewportView(editorpane);
Open.setText("File");
New.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_N, java.awt.event.InputEvent.CTRL_MASK));
New.setText("New");
New.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
NewActionPerformed(evt);
Open.add(New);
Openfile.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_O, java.awt.event.InputEvent.CTRL_MASK));
Openfile.setText("Open...");
Openfile.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
OpenfileActionPerformed(evt);
Open.add(Openfile);
Save.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_S, java.awt.event.InputEvent.CTRL_MASK));
Save.setText("Save");
Save.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
SaveActionPerformed(evt);
Open.add(Save);
SaveAs.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_S, java.awt.event.InputEvent.SHIFT_MASK | java.awt.event.InputEvent.CTRL_MASK));
SaveAs.setText("Save As...");
SaveAs.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
SaveAsActionPerformed(evt);
Open.add(SaveAs);
Exit.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_0, java.awt.event.InputEvent.CTRL_MASK));
Exit.setText("Exit");
Exit.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
ExitActionPerformed(evt);
Open.add(Exit);
jMenuBar1.add(Open);
Cut.setText("Edit");
jMenuItem6.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_X, java.awt.event.InputEvent.CTRL_MASK));
jMenuItem6.setText("Cut");
jMenuItem6.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItem6ActionPerformed(evt);
Cut.add(jMenuItem6);
Copy.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_C, java.awt.event.InputEvent.CTRL_MASK));
Copy.setText("Copy");
Copy.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
CopyActionPerformed(evt);
Cut.add(Copy);
Paste.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_V, java.awt.event.InputEvent.CTRL_MASK));
Paste.setText("Paste");
Paste.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
PasteActionPerformed(evt);
Cut.add(Paste);
Delete.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_DELETE, 0));
Delete.setText("Delete");
Delete.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
DeleteActionPerformed(evt);
Cut.add(Delete);
SelectAll.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_A, java.awt.event.InputEvent.CTRL_MASK));
SelectAll.setText("Select All");
SelectAll.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
SelectAllActionPerformed(evt);
Cut.add(SelectAll);
jMenuBar1.add(Cut);
setJMenuBar(jMenuBar1);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jScrollPane2, javax.swing.GroupLayout.DEFAULT_SIZE, 600, Short.MAX_VALUE)
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jScrollPane2, javax.swing.GroupLayout.DEFAULT_SIZE, 479, Short.MAX_VALUE)
pack();
}// </editor-fold>
private void NewActionPerformed(java.awt.event.ActionEvent evt) {
editorpane.setText("");
private void ExitActionPerformed(java.awt.event.ActionEvent evt) {
System.exit(0);
private void DeleteActionPerformed(java.awt.event.ActionEvent evt) {
editorpane.replaceSelection("");
private void SaveAsActionPerformed(java.awt.event.ActionEvent evt) {
JFileChooser sdChooser = new JFileChooser();
FileNameExtensionFilter filter = new FileNameExtensionFilter("DOCX File", "txt");
sdChooser.setFileFilter(filter);
int returnVal = sdChooser.showSaveDialog(null);
try{
if(returnVal == JFileChooser.APPROVE_OPTION){
File directory = sdChooser.getCurrentDirectory();
String path = directory.getAbsolutePath();
String fileName = sdChooser.getSelectedFile().getName();
if(fileName.contains(".docx")){
}else{
fileName = fileName + ".docx";
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(path + "\\" + fileName)));
bw.write(editorpane.getText());
bw.close();
} catch(IOException e){
JOptionPane.showMessageDialog(null, "ERROR!");
private void jMenuItem6ActionPerformed(java.awt.event.ActionEvent evt) {
ClipboardData = editorpane.getSelectedText();
StringSelection stringSelection = new StringSelection(ClipboardData);
Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
clipboard.setContents(stringSelection, null);
editorpane.replaceSelection("");
private void CopyActionPerformed(java.awt.event.ActionEvent evt) {
ClipboardData = editorpane.getSelectedText();
StringSelection stringSelection = new StringSelection(ClipboardData);
Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
clipboard.setContents(stringSelection, null);
private void PasteActionPerformed(java.awt.event.ActionEvent evt) {
editorpane.append(ClipboardData);
private void SelectAllActionPerformed(java.awt.event.ActionEvent evt) {
editorpane.selectAll();
private void OpenfileActionPerformed(java.awt.event.ActionEvent evt) {
JFileChooser opChooser = new JFileChooser();
FileNameExtensionFilter filter = new FileNameExtensionFilter("DOCX file", "docx");
opChooser.setFileFilter(filter);
int returnval = opChooser.showOpenDialog(null);
File chosenFile = opChooser.getSelectedFile();
try {
if(returnval == JFileChooser.APPROVE_OPTION){
BufferedReader br = new BufferedReader(new FileReader(chosenFile));
editorpane.setText("");
String data;
while((data = br.readLine()) != null) {
editorpane.append(data + "\n");}
br.close();
}catch(IOException e){
JOptionPane.showMessageDialog(null, "ERROR!" );
private void SaveActionPerformed(java.awt.event.ActionEvent evt) {
if("".equals(CurrentFileDirectory)){
JFileChooser sdChooser = new JFileChooser();
FileNameExtensionFilter filter = new FileNameExtensionFilter("DOCX file", "docx");
sdChooser.setFileFilter(filter);
int returnval = sdChooser.showOpenDialog(null);
try{
if(returnval == JFileChooser.APPROVE_OPTION){
File directory = sdChooser.getCurrentDirectory();
String path = directory.getAbsolutePath();
String fileName = sdChooser.getSelectedFile().getName();
if(fileName.contains(".docx")){
}else{
fileName = fileName + ".docx";
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(path + "\\" + fileName)));
bw.write(editorpane.getText());
bw.close();}
}catch(IOException e){
JOptionPane.showMessageDialog(null, "ERROR!");
* @param args the command line arguments
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(Form.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Form.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Form.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Form.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
new Form().setVisible(true);
// Variables declaration - do not modify
private javax.swing.JMenuItem Copy;
private javax.swing.JMenu Cut;
private javax.swing.JMenuItem Delete;
private javax.swing.JMenuItem Exit;
private javax.swing.JMenuItem New;
private javax.swing.JMenu Open;
private javax.swing.JMenuItem Openfile;
private javax.swing.JMenuItem Paste;
private javax.swing.JMenuItem Save;
private javax.swing.JMenuItem SaveAs;
private javax.swing.JMenuItem SelectAll;
private javax.swing.JEditorPane editorpane;
private javax.swing.JMenuBar jMenuBar1;
private javax.swing.JMenuItem jMenuItem6;
private javax.swing.JScrollPane jScrollPane2;
// End of variables declaration
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.GraphicsEnvironment;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.Action;
import javax.swing.JButton;
import javax.swing.JColorChooser;
import javax.swing.JComboBox;
import javax.swing.JDialog;
import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextPane;
import javax.swing.text.AttributeSet;
import javax.swing.text.Element;
import javax.swing.text.MutableAttributeSet;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyledDocument;
import javax.swing.text.StyledEditorKit;
public class Colore {
public Colore() {
JFrame frame = new JFrame();
JTextPane textPane = new JTextPane();
JScrollPane scrollPane = new JScrollPane(textPane);
JPanel north = new JPanel();
JMenuBar menu = new JMenuBar();
JMenu styleMenu = new JMenu();
styleMenu.setText("Style");
Action boldAction = new BoldAction();
boldAction.putValue(Action.NAME, "Bold");
styleMenu.add(boldAction);
Action italicAction = new ItalicAction();
italicAction.putValue(Action.NAME, "Italic");
styleMenu.add(italicAction);
Action foregroundAction = new ForegroundAction();
foregroundAction.putValue(Action.NAME, "Color");
styleMenu.add(foregroundAction);
Action formatTextAction = new FontAndSizeAction();
formatTextAction.putValue(Action.NAME, "Font and Size");
styleMenu.add(formatTextAction);
menu.add(styleMenu);
north.add(menu);
frame.getContentPane().setLayout(new BorderLayout());
frame.getContentPane().add(north, BorderLayout.NORTH);
frame.getContentPane().add(scrollPane, BorderLayout.CENTER);
frame.setSize(800, 500);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
public static void main(String[] args) {
new Culo();
class BoldAction extends StyledEditorKit.StyledTextAction {
private static final long serialVersionUID = 9174670038684056758L;
public BoldAction() {
super("font-bold");
public String toString() {
return "Bold";
public void actionPerformed(ActionEvent e) {
JEditorPane editor = getEditor(e);
if (editor != null) {
StyledEditorKit kit = getStyledEditorKit(editor);
MutableAttributeSet attr = kit.getInputAttributes();
boolean bold = (StyleConstants.isBold(attr)) ? false : true;
SimpleAttributeSet sas = new SimpleAttributeSet();
StyleConstants.setBold(sas, bold);
setCharacterAttributes(editor, sas, false);
class ItalicAction extends StyledEditorKit.StyledTextAction {
private static final long serialVersionUID = -1428340091100055456L;
public ItalicAction() {
super("font-italic");
public String toString() {
return "Italic";
public void actionPerformed(ActionEvent e) {
JEditorPane editor = getEditor(e);
if (editor != null) {
StyledEditorKit kit = getStyledEditorKit(editor);
MutableAttributeSet attr = kit.getInputAttributes();
boolean italic = (StyleConstants.isItalic(attr)) ? false : true;
SimpleAttributeSet sas = new SimpleAttributeSet();
StyleConstants.setItalic(sas, italic);
setCharacterAttributes(editor, sas, false);
class ForegroundAction extends StyledEditorKit.StyledTextAction {
private static final long serialVersionUID = 6384632651737400352L;
JColorChooser colorChooser = new JColorChooser();
JDialog dialog = new JDialog();
boolean noChange = false;
boolean cancelled = false;
public ForegroundAction() {
super("foreground");
public void actionPerformed(ActionEvent e) {
JTextPane editor = (JTextPane) getEditor(e);
if (editor == null) {
JOptionPane.showMessageDialog(null,
"You need to select the editor pane before you can change the color.", "Error",
JOptionPane.ERROR_MESSAGE);
return;
int p0 = editor.getSelectionStart();
StyledDocument doc = getStyledDocument(editor);
Element paragraph = doc.getCharacterElement(p0);
AttributeSet as = paragraph.getAttributes();
fg = StyleConstants.getForeground(as);
if (fg == null) {
fg = Color.BLACK;
colorChooser.setColor(fg);
JButton accept = new JButton("OK");
accept.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
fg = colorChooser.getColor();
dialog.dispose();
JButton cancel = new JButton("Cancel");
cancel.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
cancelled = true;
dialog.dispose();
JButton none = new JButton("None");
none.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
noChange = true;
dialog.dispose();
JPanel buttons = new JPanel();
buttons.add(accept);
buttons.add(none);
buttons.add(cancel);
dialog.getContentPane().setLayout(new BorderLayout());
dialog.getContentPane().add(colorChooser, BorderLayout.CENTER);
dialog.getContentPane().add(buttons, BorderLayout.SOUTH);
dialog.setModal(true);
dialog.pack();
dialog.setVisible(true);
if (!cancelled) {
MutableAttributeSet attr = null;
if (editor != null) {
if (fg != null && !noChange) {
attr = new SimpleAttributeSet();
StyleConstants.setForeground(attr, fg);
setCharacterAttributes(editor, attr, false);
}// end if color != null
noChange = false;
cancelled = false;
private Color fg;
class FontAndSizeAction extends StyledEditorKit.StyledTextAction {
private static final long serialVersionUID = 584531387732416339L;
private String family;
private float fontSize;
JDialog formatText;
private boolean accept = false;
JComboBox fontFamilyChooser;
JComboBox fontSizeChooser;
public FontAndSizeAction() {
super("Font and Size");
public String toString() {
return "Font and Size";
public void actionPerformed(ActionEvent e) {
JTextPane editor = (JTextPane) getEditor(e);
int p0 = editor.getSelectionStart();
StyledDocument doc = getStyledDocument(editor);
Element paragraph = doc.getCharacterElement(p0);
AttributeSet as = paragraph.getAttributes();
family = StyleConstants.getFontFamily(as);
fontSize = StyleConstants.getFontSize(as);
formatText = new JDialog(new JFrame(), "Font and Size", true);
formatText.getContentPane().setLayout(new BorderLayout());
JPanel choosers = new JPanel();
choosers.setLayout(new GridLayout(2, 1));
JPanel fontFamilyPanel = new JPanel();
fontFamilyPanel.add(new JLabel("Font"));
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
String[] fontNames = ge.getAvailableFontFamilyNames();
fontFamilyChooser = new JComboBox();
for (int i = 0; i < fontNames.length; i++) {
fontFamilyChooser.addItem(fontNames);
fontFamilyChooser.setSelectedItem(family);
fontFamilyPanel.add(fontFamilyChooser);
choosers.add(fontFamilyPanel);
JPanel fontSizePanel = new JPanel();
fontSizePanel.add(new JLabel("Size"));
fontSizeChooser = new JComboBox();
fontSizeChooser.setEditable(true);
fontSizeChooser.addItem(new Float(4));
fontSizeChooser.addItem(new Float(8));
fontSizeChooser.addItem(new Float(12));
fontSizeChooser.addItem(new Float(16));
fontSizeChooser.addItem(new Float(20));
fontSizeChooser.addItem(new Float(24));
fontSizeChooser.setSelectedItem(new Float(fontSize));
fontSizePanel.add(fontSizeChooser);
choosers.add(fontSizePanel);
JButton ok = new JButton("OK");
ok.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
accept = true;
formatText.dispose();
family = (String) fontFamilyChooser.getSelectedItem();
fontSize = Float.parseFloat(fontSizeChooser.getSelectedItem().toString());
JButton cancel = new JButton("Cancel");
cancel.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
formatText.dispose();
JPanel buttons = new JPanel();
buttons.add(ok);
buttons.add(cancel);
formatText.getContentPane().add(choosers, BorderLayout.CENTER);
formatText.getContentPane().add(buttons, BorderLayout.SOUTH);
formatText.pack();
formatText.setVisible(true);
MutableAttributeSet attr = null;
if (editor != null && accept) {
attr = new SimpleAttributeSet();
StyleConstants.setFontFamily(attr, family);
StyleConstants.setFontSize(attr, (int) fontSize);
setCharacterAttributes(editor, attr, false);Sorry. My problem is that I want to insert HTML inside the body tag of an HTML page, and I don't know any simple method to get a reference to the <body> element from the JEditorPane widget, I get a reference to the actual HTML document but I can't get a reference of a tag from HTMLDocument either. Thanks.
Juanjo -
Is caret positioning in right-to-left oriented jtextpane corruptable?
Dear all -
Below is a serious problem. I hope I can get help from you experts out there; otherwise, I think it is a bug that should be reported to the JDK developers.
I am writing an editor using my own keyboard layout to type in Arabic. To do so, I use jTextPane, and my own implementation of DocumentFilter (where I map English keys to Arabic letters). I start by i) setting the component orientation of jTextPane to be from RIGHT_TO_LEFT, and ii) attaching a caretListener to trace the caret's position.
The problem (I think it is a bug just like what is recorded here: http://bugs.adobe.com/jira/browse/SDK-16315):
Initially as I type text in Arabic, there is one-to-one correspondence between where I point my mouse and where the caret displays, basically, the same place. However, a problem occurs (and can always be re-produced) when I type a word towards the end of the line, follow it by a space character, and that space character causes the word to descend to the next line as a result of a wrap-around. Now, as I point my mouse to that first line again, the location where I click the mouse and the location where the caret flashes are no longer coincident! Also, the caret progression counter is reversed! That is, if there are 5 characters on Line 1, then whereas initially the caret starts from Position 0 on the right-hand side and increases as more text is added from right to left, it is now reversed where the the caret now increases from left to right for the first line, but correctly increases from right to left in the second line! yes funny stuff and very hard to describe to.
So, here is an example. I wrote the code below (JDK1.6_u10, on Netbeans 6.5 RC2) to make it easy to reproduce the problem. In the example, I have replaced the keys A, S, D, F and G with their Arabic corresponding letters alif, seen, daal, faa and jeem. Now, type these letters inside the double quotes (without the double quotes) including the two spaces please and watch out for the output: "asdfg asdfg ". Up until you type the last g and before you type space, all is perfect, and you should notice that the caret position correctly moves from 0 upwards in the printlines I provided. When you type that last space, the second word descends as a result of the wrap-around, and hell breaks loose! Notice that whereas the mouse and caret position are coincident on the second line, there is no way to fine-control the mouse position on the first line any more. Further, whereas adding text on the second line is intuitive (i.e., you can insert more text wherever you point your mouse, which is also where the caret would show up), for the first line, if you point the mouse any place over the written string, the caret displays in a different place, the any added text is added in the wrong place! All this because the caret counter is now reversed, which should never occur. Any ideas or fixes?
Thank you very much for reading.
Mohsen
package workshop.onframes;
import java.awt.ComponentOrientation;
import java.awt.Rectangle;
import javax.swing.event.CaretEvent;
import javax.swing.event.CaretListener;
import javax.swing.text.BadLocationException;
public class NewJFrame1 extends javax.swing.JFrame {
public NewJFrame1() {
initComponents();
jTextPane1.setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
CaretListener caretListener = new CaretListener() {
public void caretUpdate(CaretEvent e) {
int dot = e.getDot();
int mark = e.getMark();
if (dot == mark) {
try {
Rectangle cc = jTextPane1.modelToView(dot);
System.out.println("Caret text position: " + dot +
", view location (x, y): (" + cc.x + ", " + cc.y + ")");
} catch (BadLocationException ble) {
System.err.println("CTP: " + dot);
} else if (dot < mark) {
System.out.println("Selection from " + dot + " to " + mark);
} else {
System.out.println("Selection from " + mark + " to " + dot);
jTextPane1.addCaretListener(caretListener);
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jScrollPane3 = new javax.swing.JScrollPane();
jTextPane1 = new javax.swing.JTextPane();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jTextPane1.setFont(new java.awt.Font("Tahoma", 0, 24)); // NOI18N
jTextPane1.setAutoscrolls(false);
jTextPane1.addKeyListener(new java.awt.event.KeyAdapter() {
public void keyTyped(java.awt.event.KeyEvent evt) {
jTextPane1KeyTyped(evt);
jScrollPane3.setViewportView(jTextPane1);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jScrollPane3, javax.swing.GroupLayout.DEFAULT_SIZE, 159, Short.MAX_VALUE)
.addContainerGap())
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jScrollPane3, javax.swing.GroupLayout.PREFERRED_SIZE, 85, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
pack();
}// </editor-fold>
private void jTextPane1KeyTyped(java.awt.event.KeyEvent evt) {
if (evt.getKeyChar() == 'a') {
evt.setKeyChar('\u0627');
} else if (evt.getKeyChar() == 's') {
evt.setKeyChar('\u0633');
} else if (evt.getKeyChar() == 'd') {
evt.setKeyChar('\u062f');
} else if (evt.getKeyChar() == 'f') {
evt.setKeyChar('\u0641');
} else if (evt.getKeyChar() == 'g') {
evt.setKeyChar('\u062c');
public
static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new NewJFrame1().setVisible(true);
// Variables declaration - do not modify
private javax.swing.JScrollPane jScrollPane3;
private javax.swing.JTextPane jTextPane1;
// End of variables declaration
}Hi Mohsen,
I looked at it and indeed, I see what you describe. Sorry, but I can't shed any light. I tried to figure out what software component, or combination of components, is the cause of the problem. I see several candidates:
1) The JTextPane
2) The Document
3) RTL support
4) BIDI support
5) Interpretation (by any other software component) of the left and right arrow key
6) The font
To clarify number 6: I know virtually nothing of Arabic language (apart from it being written from right to left). I remember however that the actual representation of a letter is dependent of its position between other letters: front, middle and end. What I see to my astonishment is that it seems that the rendering is also aware of this phenomenon. When you insert an A between the S and D of ASDFG, the shape of the S changes. Quite magic.
I tried to add a second textpane with the same Document, but a different size, to see what would happen with number one if one types text in number two and vice versa.
In my first attempt, the font that you set on textpane one was gone after I set its document to number two. For me that is very strange. The font was set to the textpane, not to the document. The separation betweem Model and View seems not very clear in this case. So I now also set that font on the second textpane.
I will post the changed code so that you may experiment some more and hopefully will find the problem.
You might be interested in a thread on java dot net forums that discusses a memory leak for RTL [http://forums.java.net/jive/message.jspa?messageID=300344#300344]
Piet
import java.awt.ComponentOrientation;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.Rectangle;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import javax.swing.GroupLayout;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextPane;
import javax.swing.WindowConstants;
import javax.swing.event.CaretEvent;
import javax.swing.event.CaretListener;
import javax.swing.text.BadLocationException;
import javax.swing.text.Document;
public class NewJFrame1 extends JFrame {
private static final long serialVersionUID = 1L;
public NewJFrame1() {
initComponents();
// jTextPane1.setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
this.applyComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
CaretListener caretListener = new CaretListener() {
public void caretUpdate(CaretEvent e) {
int dot = e.getDot();
int mark = e.getMark();
if (dot == mark) {
try {
Rectangle cc = jTextPane1.modelToView(dot);
System.out.println("Caret text position: " + dot
+ ", view location (x, y): (" + cc.x + ", "
+ cc.y + ")");
} catch (BadLocationException ble) {
System.err.println("CTP: " + dot);
} else if (dot < mark) {
System.out.println("Selection from " + dot + " to " + mark);
} else {
System.out.println("Selection from " + mark + " to " + dot);
jTextPane1.addCaretListener(caretListener);
private KeyAdapter toArabic = new KeyAdapter() {
public void keyTyped(KeyEvent evt) {
jTextPane1KeyTyped(evt);
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
// @SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jScrollPane3 = new JScrollPane();
jTextPane1 = new JTextPane();
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
jTextPane1.setFont(new Font("Tahoma", 0, 24)); // NOI18N
jTextPane1.setAutoscrolls(false);
jTextPane1.addKeyListener(toArabic);
jScrollPane3.setViewportView(jTextPane1);
GroupLayout layout = new GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(layout.createParallelGroup(
GroupLayout.Alignment.LEADING).addGroup(
layout.createSequentialGroup().addContainerGap().addComponent(
jScrollPane3, GroupLayout.DEFAULT_SIZE, 159,
Short.MAX_VALUE).addContainerGap()));
layout.setVerticalGroup(layout.createParallelGroup(
GroupLayout.Alignment.LEADING).addGroup(
layout.createSequentialGroup().addContainerGap().addComponent(
jScrollPane3, GroupLayout.PREFERRED_SIZE, 85,
GroupLayout.PREFERRED_SIZE).addContainerGap(
GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)));
pack();
}// </editor-fold>
private void jTextPane1KeyTyped(KeyEvent evt) {
if (evt.getKeyChar() == 'a') {
evt.setKeyChar('\u0627');
} else if (evt.getKeyChar() == 's') {
evt.setKeyChar('\u0633');
} else if (evt.getKeyChar() == 'd') {
evt.setKeyChar('\u062f');
} else if (evt.getKeyChar() == 'f') {
evt.setKeyChar('\u0641');
} else if (evt.getKeyChar() == 'g') {
evt.setKeyChar('\u062c');
public static void main(String args[]) {
EventQueue.invokeLater(new Runnable() {
public void run() {
final NewJFrame1 frameOne = new NewJFrame1();
frameOne.setLocationRelativeTo(null);
frameOne.setVisible(true);
EventQueue.invokeLater(new Runnable() {
public void run() {
Document doc = frameOne.jTextPane1.getDocument();
JTextPane textPane2 = new JTextPane();
textPane2.setFont(new Font("Tahoma", 0, 24)); // NOI18N
textPane2.setAutoscrolls(false);
textPane2.setDocument(doc);
textPane2.addKeyListener(frameOne.toArabic);
JFrame frameTwo = new JFrame();
frameTwo.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frameTwo.add(new JScrollPane(textPane2));
frameTwo.setSize(400, 300);
frameTwo.setLocationByPlatform(true);
frameTwo.setVisible(true);
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EventQueue.postEvent(KeyEvent) ignores stated source component
Hi all
I ran intoa slight problem while using the event queue to simulate key presses on a textfield; it appears that no matter what component is specified as being the source of the event (even a component that does not exist until time-of-posting), the currently focused component is indicated as the source for KeyEvents
In this regard, the javadoc is not telling the truth (KeyEvent constructor), and im thinking of reporting both issues as a bug, unless there is something really obvious i have missed.
more info: http://www.codeguru.com/forum/showthread.php?p=996076after 1.4 according to Focus specification all key events can be received by focus owner only.
in 1.5 you can dispatch key event on component if you will call dispatchEvent() with this event.
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