Calculating maximum font size

Okay, I have a JTextField with wrap on. It's setEditable(false). The string in it is going to be changing constantly and the field has a fixed size. I'm trying to come up with a method that will determine the maximum sized font that will be able to fit in the TextField without requiring a ScrollPane.
I'm not quite sure where to start on this one. I'm sure I can come up with a calculation involving font point size and FontMetrics.stringWidth() but I can't figure it out. Any ideas would be helpful.

hi
* Computes a correct font size to use for the text of this component.
private void computeFontSize()
    int height = getSize().height;
    int width = getSize().width;
    if (current_font != null) //this will be the font the component is currently showing
            // need to create a brand new Font everytime to see if the
            // stringWidth fits into our current width.
            // We can check height by pixels, but sadly need to create a new font
            // for checking the width.
            Font tempFont = new Font(current_font.getName(), current_font.getStyle(), height);
            FontMetrics fm = getFontMetrics(tempFont);
            if (fm != null)
     int textWidth = fm.stringWidth(getText());
                     if (textWidth > getSize().width)
                            // Text doesn't fit horizontally; scale it down a bit.
                            // (stop div by zero errors)
                            if (textWidth < 1)
                                     textWidth = 1;
                            int newFontHeight = (height * width) / textWidth;
                            if (newFontHeight != current_font.getSize())
                                  current_font = new Font(current_font.getName(), current_font.getStyle(), newFontHeight);
                     else if (tempFont.getSize() != current_font.getSize())
                           current_font = tempFont;
           tempFont = null;
           fm = null;
}this code was taken from a homegrown label component that scales its own font based on its size.
There is enough here for you to work out what you need.
If it meets your needs, don't be shy with the dukes
nes

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>
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>
>
>
>
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