Scaling Text Layers

Hi,

I observed that when I scale text layers they loose their text property: Text is no longer editable and it looks blurred in enlarged images. This made me write my first gimp script (python), and it more or less works as I need it: It scales the text by scaling the font size, and places the enlarged text layers at the right relative positions, as much as rounding allows. My questions:

1. Is it worth uploading or did I just reinvent functionality availabe somewhere else?
2. I did not succeed in scaling the text in-place. It worked so far as the text size changed, but enlarged text was cropped to the region of the original text size. So I had to recreate the layers with scaled font sizes. How do I enlarge the font size of a text layer such that the boundaries offset accordingly?

Joe