asilichenko / swing-html-paragraph-wrap

Implement possibility to wrap long words on html page loaded into JEditorPane

Java swing html paragraph wrap

By default there are some issues with long text displaying in html page loaded into JEditorPane.

1. content of the pre-blocks is not wrapped at all;
2. long like super long word or symbol seqence is not wrapped anywhere.

One extra issue: how to wrap a text in JEditorPane inside JScrollPane if we don't need to use horizontal scroll bar?

Let's start from the ending:

• just override method JEditorPane.getScrollableTracksViewportWidth and put "return true;" inside.

For the first two issues we need to override classes javax.swing.text.html.HTMLEditorKit and javax.swing.text.html.ParagraphView.

Our HTMLEditorKit should just return an object of our ParagraphView for specific tags.

Custom ParagraphView should return 0 in the method getMinimumSpan for X-axis.

BTW, HTMLEditorKit implements HTML spec ver. 3.2. The specification is from as early as 1997:

https://www.w3.org/TR/2018/SPSD-html32-20180315/