Fade a JEditorPane

Hi,
I've been struggling with this problem for days now. I'm displaying HTML pages in an JEditorPane so that I can control the content from my webapp. The JEditorPane is placed in a JPanel (called mainpanel) togheter with another JPanel (with some buttons which I call toppanel). I place the TopPanel at the top of the MainPanel and the JEditorPane in the bottom (so the TopPanel becomes like a menu). I then use setPage on the JEditorPane to switch the different views (HTML pages).
What I would like to do when I change the HTML page is to fade the JEditorPane. For example
public void changePage(String url)
JEditorPane.fadeOut(); <----DONT KNOW HOW TO DO THIS
JEditorPane.setPage(url);
JEditorPane.fadeIn(); <----DONT KNOW HOW TO DO THIS
The fade should be done without affecting the TopPanel.
Ive tried different solutions to do this:
1. Using GlassPane - but I could get it to work.
2. Using a javabrowser and then run javascript to fade. This didn't work because of license issues and because how it was designed (I have thread changing the content and that was not allowed)
Could someone help in simply fading in and out the EditorPane itself.
BR, Jake

JAKE142 wrote:
..Could you please give me a code sample?
Can u gimme da codez? (1)
How about you give us a 'code sample' of your best effort of implementing the suggestion? Note also:
- For better help sooner, post an SSCCE.
- When posting code, code snippets, HTML/XML or input/output, please use the code tags. The code tags protect the indentation and formatting of the sample.
- Be very specific about what you saw in the current code, and what you expected or hoped to see.
..I think I tried it but without success.1) You did succeed in sounding pathetic. As an aside, that will get you less help, not more.

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Adobe,
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Here is a thread which documents the issue well (even shows examples, and other details someone prepared for you to apparently ignore):
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Another issue which details it going back as far as CS 5.5:
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Indeed. Yes Adobe, please explain.
And here is an example of what I am talking about:
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This provides identical image quality/blending results as the CPU only benchmark. However, the fades are very abrupt, as per the original problem...
GPU (MPE and GPU ENABLED - Linear Color OFF, as per your recommendation):
This is your recommended solution. The fades are as smooth as they are in the CPU version. But as you can see the color, alpha and blending are VASTLY different. Actually, it looks HORRIBLE! The BG text is barely visible, and the foreground text appears to be more prevalent over the top of the back layer, making its fade-up quite disjointed and selective.
...So as you can see, the "solution" you provided seems to create more problems and/or inconsistencies in the overall output. Now we have no idea what is the "standard"!
I personally find these inconsistency's very concerning. And I am sure I'm not the only one. Please tell me there is actually a logic to this "solution" and it wasn't a simple duct-tape fix that nobody there at Adobe actually looked deeper into to see exactly how it would effect overall image quality! It sure appears that way!
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Success!!!
In a tiny bit of a hacky way.
I will share my path to success. Though I am sure it could be improved. The solution (except for the minor hack to get it to work at all) is quite simple.
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<span type="reserved">hello</span>
I wanted to prevent the user from being able to type (visually) to cause either this:
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or
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<span type="reserved">he new text llo</span>
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The real solution:
Using the DocumentFilter, I was able to solve both my problems of , not allowing the user to type inside the word 'hello', and preventing the text typed after the 'hello' being appended inside the span tag by the Document model.
This is my code:
           myFilter = new DocumentFilter(){
                public void insertString(DocumentFilter.FilterBypass fb, int offset, String string, AttributeSet attrs) throws BadLocationException
                     System.out.println("in insert string");
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                            throw new BadLocationException("Reserved position", offset);
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                                Object val = attrs.getAttribute(HTML.Attribute.TYPE);
                            if (val!=null && val.equals("reserved"))
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                            else
                                 super.insertString(fb, offset, string, attrs);
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                public void remove(DocumentFilter.FilterBypass fb,
                        int offset,
                        int length)
                 throws BadLocationException
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                         int offset,
                         int length,
                         String text,
                         AttributeSet attrs)
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                            throw new BadLocationException("Reserved position", offset);
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                    retval = true;
          return retval;
     }And now, when I attempt to type on the word 'hello', nothing happens (great!), and when I type after it, it is not assigned the span tag attribute, and we later find it (when outputting html) at the outside of the span tag.
I don't know if there is a better way to do this, but it looks and works fairly cleanly so far.
And thanks to stas for your reply...... Maybe this is what you meant. . it certainly was the attributes I needed to fiddle with here, and it gave me an extra hint of what to look for when researching the problem.
Edited by: svaens on Sep 28, 2009 6:56 PM
forgot to add dependency to code snippet
Edited by: svaens on Sep 28, 2009 9:34 PM
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http://support.apple.com/kb/HT5859
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Click Install to download and install Logic Pro X.
Thank you for using Apple Support Communities.
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editorPane.setEditorKit(new HTMLEditorKit()
public ViewFactory getViewFactory() {
return new HTMLEditorKit.HTMLFactory() {
public View create(Element elem) {
Object o = elem.getAttributes().getAttribute(javax.swing.text.StyleConstants.NameAttribute);
if (o instanceof HTML.Tag)
HTML.Tag kind = (HTML.Tag) o;
if (kind == HTML.Tag.INPUT || kind == HTML.Tag.SELECT || kind == HTML.Tag.TEXTAREA)
return new FormView(elem)
protected void submitData(String data)
showData(data);
protected void imageSubmit(String data)
showData(data);
// Workaround f�r Bug #4529702
protected Component createComponent()
if (getElement().getName().equals("input") &&
getElement().getAttributes().getAttribute(HTML.Attribute.TYPE).equals("radio"))
String name = (String) getElement().getAttributes().getAttribute(HTML.Attribute.NAME);
if (radioGroups.get(name) == null)
radioGroups.put(name, new ButtonGroup());
((JToggleButton.ToggleButtonModel) getElement().getAttributes().getAttribute(StyleConstants.ModelAttribute)).setGroup((ButtonGroup) radioGroups.get(name));
JComponent comp = (JComponent) super.createComponent();
// Peque�a mejora visual
comp.setOpaque(false);
return comp;
return super.create(elem);
//editorPane.setText(FORM_TEXT);
editorPane.setText(texto);
getContentPane().add(new JScrollPane(editorPane), BorderLayout.CENTER);
private void showData(String data) {
// ergebnis significa resultado
StringBuffer ergebnis = new StringBuffer("");
StringTokenizer st = new StringTokenizer(data, "&");
while (st.hasMoreTokens()) {
String token = st.nextToken();
String key = URLDecoder.decode(token.substring(0, token.indexOf("=")));
String value = URLDecoder.decode(token.substring(token.indexOf("=")+1,token.length()));
v.add(value);
ergebnis.append(" "); ergebnis.append(key); ergebnis.append(": "); ergebnis.append(value); ergebnis.append(" ");
ergebnis.append(" ");
JOptionPane.showMessageDialog(this, ergebnis.toString());
public static void main(String[] args) throws Exception {
JFrame frame = new JFrame ();
FormSubmission editor = new FormSubmission ();
frame.getContentPane().add(editor);
frame.pack();
frame.show();
}

How can I create JEditorPane which scrolls to the bottom on every resize?

JRE 1.3.0
Included a simple frame with the only control - JEditorPane (contained within JScrollPane). Every time scroll pane size changes, attempt to scroll down to the end of JEditorPane is made.
The problem is: although everything works 9 times of 10, sometimes editor is scrolled almost to the end, sometimes - to the very top. On the next resize editor is scrolled correctly.
I think, there are some delayed layout recalculations inside SWING which prevent JEditorPane and/or JScrollPane from knowing actual size.
Is it possible to force JEditorPane+JScrollPane pair to update dimensions? ( explicit call to doLayout() does not fix anything )
Thanks
public class TestFrame extends JFrame
BorderLayout borderLayout1 = new BorderLayout();
JScrollPane jScrollPane1 = new JScrollPane();
JEditorPane jEditorPane1 = new JEditorPane();
public TestFrame()
try
jbInit();
catch(Exception e)
e.printStackTrace();
private void jbInit() throws Exception
this.getContentPane().setLayout(borderLayout1);
jEditorPane1.setContentType("text/html");
jEditorPane1.setText("test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test ");
jScrollPane1.addComponentListener(new java.awt.event.ComponentAdapter()
public void componentResized(ComponentEvent e)
jScrollPane1_componentResized(e);
this.getContentPane().add(jScrollPane1, BorderLayout.CENTER);
jScrollPane1.getViewport().add(jEditorPane1, null);
void jScrollPane1_componentResized(ComponentEvent e)
Dimension size = jEditorPane1.getPreferredSize();
jEditorPane1.scrollRectToVisible( new Rectangle(0, size.height, 0, 0) );
System.out.println("preferred height=" + size.height);
}

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