I am trying to make a simple email client in Java Swing.
I want to allow users to format their email in any way they want, like making some parts of the text bold, other parts italic, etc. In other words, I am trying to make a WYSIWYG editor. The formatting is done in HTML. I am using JEditorPane to display the text.
I have tried adding tags myself to the text directly by using setText and getText methods of JEditorPane. I could make it work for basic formatting, but it is quite difficult to handle complex formatting. (trying to remove tags from multi-tagged elements, for example)
Is there an easier way to accomplish this? I have looked at HTMLEditorKit but it seems like it does not support adding tags to and/or replacing a specific string.
Thanks in advance.
The HTMLEditorKit comes with some default Actions that allow you to do some basic styling of the text with the click of a menu item (or button). Take a look at the example in the section from the Swing tutorial on Text Component Features.
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At the moment I try to find a method to create a TextArea that I can edit and simply (without cheating) apply syntax highlighting to. Is that possible without the need of a custom Component? I already managed to format a text using a JEditorPane, but I am not sure how to implement that the text is dynamicly highlighted... And that efficiently. Is that possibly without an enormous amount of coding?
You can't use a JTextArea since it does not support text attributes.
Instead you can use a JTextPane. Read the section from the Swing tutorial on Text Component Features for more information and examples.
i have to create a project in java swing for my college. An editor of java files with proper text highlighting i.e different colors and fonts for java keywords, java comments and for normal text.
Help me to select one of two styled text component JEditorpane and JTextPane provided by java so that i can full-fill the requirements.
Please tell me suitable difference between these two that in which kind of situation i have to use one of these.
Although both support rich text. But there is difference.
JEditorPane supports display/editing of HTML.
JTextPane is an extension of JEditorPane which provides word processing features like fonts, text styles, colors, etc.
You can use either of them, but if it is a rich text editor then I would suggest using the JTextPane.
You may also find this topic useful.
I need to show the function eAxn inside a JLabel, but trying to do so doesn't work and only shows as eAxn which is confusing. eAx^n could help, but that's not what I'm looking for.
Probably is because of the html version, or JLabels just dislike nested superscripts.
How else would you approach this for a JLabel?
For that specific case there exists a special-2 \u00b2.
<html>e<sup>0.5x²</sup>
The HTML editor kit, and styled text uses character attributes, which probably prevent nesting of <sup> tags. Maybe with <span style='...'> something can be done too.
I wanted to know if there is a way that I can apply basic HTML to a text pane or text editor using a Highlighter. My objective is to basically do a text editor using basic HTML. For example a user highlights a part of some text and clicks on a button and I want that to become bold for example, using html but without showing tags or anything, just the selected text in bold. Also I wanted to know if it is better to use a textpane for this or a editorpane and why. Thank you.
anyway, you have to set a HTMLDocument to your JTextPane. Then, you can use the features of HTMLEditorKit and HTMLDocument to achieve what you want. For instance you can use :
insertHTML(jtp.getDocument(), jtp.getSelectionStart(), "<b>"+getSelectedText()+"</b>", 0, 0, HTML.Tag.B);
From the HTMLEditorKit. Something like that (I have not try the code)
I am designing a chat system..i am making use of JText area to display chat, and JTextField to enter text.
My question is how to recognize smiley's like ":)" and replace it by corresponding image
on text area? i found no method which will append image on text area..Please help.
http://java-sl.com/tip_autoreplace_smiles.html
You'll have to use a read-only JEditorPane to display HTML instead of a JTextArea in that case.
JTextArea was made to display only multiple rows of text, but correct me if I'm wrong. To display Images you could use the JEditorPane control that will allow you to use html, with simple <img /> tags which will point to a image.
Regarding how to recognize smileys you could create a file / list of common patterns that you would like to support and then simple check if the text contains the pattern with the .contains , or even Regular Expressions.
Update
And with the JEditorPane you will also be to do addition things like say scan for emails or links and automatically convert them so the user can click them, always a nice feature to have.