Question

A JTextArea‘s tab size can easily be set using setTabSize(int).

Is there a similar way to do it with a JEditorPane?

Right now, text with tabs in my pane looks like:

if (stuff){             more stuff; } 

And, I’d prefer a much smaller tab stop:

if (stuff){     more stuff; } 

Answer 1

As JEditorPane is designed to support different kinds of content types, it does not provide a way to specify a ‘tab size’ directly, because the meaning of that should be defined by the content model. However when you use a model that’s a PlainDocument or one of its descendants, there is a ‘tabSizeAttribute’ that provides what you are looking for.

Example:

JEditorPane pane = new JEditorPane(...); ... Document doc = pane.getDocument(); if (doc instanceof PlainDocument) {     doc.putProperty(PlainDocument.tabSizeAttribute, 8); } ... 

From the Javadoc:

/**  * Name of the attribute that specifies the tab  * size for tabs contained in the content.  The  * type for the value is Integer.  */ public static final String tabSizeAttribute = 'tabSize';