Comment 1 for bug 678124

Yes, it's a known "bug"; because the xorg mechanism to retrieve a font, a font scale, a font path is totally inefficient. So, for this time, I've choosen a non perfect version of text managing.
I think that we can compute a function like this

input : current font size and bounding box of the text zone (but, be carreful, we ought to get the true number of lines of the text zone, see for that svgfuncs)

output : a modifiyed text zone with a new font size.

Be carreful to modifiy Flash and SVG export to manage the bounding box changing size for text zones