Deactivate ScrollOnExpand on JScrollPane

Question

I want to prevent the scrollpane from scrolling when the content in its view expands. Any pointers? I've tried Googling variations on the title, as well as reading all the docs for JScrollPane, and I'm still a bit baffled.

Edit: Within the scroll pane, I have a textpane, and beside it I have another text pane that shows the line numbers of the pane beside it. I fill up this number pane every time a new line is added, so this is probably what is causing the view to advance.

Answer 1

to-scroll or not-to-scroll is configurable on DefaultCaret

    DefaultCaret caret = (DefaultCaret) textPane.getCaret();
    caret.setUpdatePolicy(DefaultCaret.NEVER_UPDATE);

See also Rob's nice blog entry about text scrolling