How to get the char index under the mouse cursor in a JTextComponent?

[Jeronimo Backes]

Hi! I created an editor where the user is able to put some properties in the text.

Some portions of text have some properties, some don't. I wish to display the available text properties when the mouse cursor hovers over the text. To to that, I need to know what is the char index under the mouse cursor.

How can I do that?

[Craig Wood]

The (superclass) JTextComponent has two handy methods: viewToModel and modelToView.

[Jeronimo Backes]

Thanks! It works like a charm.

textPane.addMouseMotionListener(new MouseMotionAdapter(){
    public void mouseMoved(MouseEvent e) {
Point p = e.getPoint();
int index = textPane.viewToModel(p);
//use index at will
    }
});