The existing ptext -textanchor option is a non-standard and less flexible than standard Tk anchor specs (ie, "nw", "n", "ne", "center", etc). This patch replaces the ptext -textanchor option with an -anchor option that uses the standard Tk anchor spec. The patch was created from the CVS head as of the date this patch request was created.
NB: the patch was only tested on Linux.
Patch modifying the ptext item to use standard Tk anchors