[Plib-users] Bug in fntTexFont::getBBox?

[Mark H. S. <sh...@pt...>]

I'm trying to use the code that computes bounding boxes for
strings in the fnt library.  The documentation page says it works
for strings with embedded newlines, and the code that computes
the bounding box does appear to handle that.  At least, it does so
correctly in the Y direction.  In the X direction, it computes the
width of the longest line but doesn't return that.  It returns the width
of the last line.  (I'm referring to fntTexFont::getBBox in fnt.cxx.)

I believe this is a bug, but I don't know what code elsewhere in
the plib libraries might depend upon it.  Correcting the assignments at the end
of fntTexFont::getBBox like this:

   if ( left  != NULL ) *left  = l * pointsize ;
   if ( right != NULL ) *right = max_r * pointsize ;  /* return max_r */
   if ( top   != NULL ) *top   = t * pointsize ;
   if ( bot   != NULL ) *bot   = max_b * pointsize ;  /* return max_b */

... fixes things in my application.
  - Mark Shirley