Need a way to scale a font to fit a rectangle

Question

I just wrote some code to scale a font to fit within (the length of) a rectangle. It starts at 18 width and iterates down until it fits.

This seems horribly ineffic

Answer 1

Change all width variables to float instead of int for better result.

public static Font scaleFontToFit(String text, int width, Graphics g, Font pFont)
{
    float fontSize = pFont.getSize();
    float fWidth = g.getFontMetrics(pFont).stringWidth(text);
    if(fWidth <= width)
        return pFont;
    fontSize = ((float)width / fWidth) * fontSize;
    return pFont.deriveFont(fontSize);
}