Re: open+save makes resized text wander

[Scott J. <joh...@ve...>]

>Hi --
>
>I have a drawtool document with the following nasty property:  If I read it in, make a null change (such as creating and then deleting some irrelevant object), and then write it out, the new file is significantly different from the original.  In particular, text that was originally at point A has wandered to a new point B.
>
>Every time I save and re-open the document, the text has wandered farther.
>
>Here is a prescription for reproducibly creating such a document:
> -- create some 18-point text e.g. "asdf"
> -- draw a rectangle around it
> -- align the centers of the rectangle and text
> -- group the rectangle and text
> -- change the fontsize to 24
> -- ungroup
> -- re-align the centers
> -- re-group
> -- save
> -- re-open and observe text is no longer centered
>
>Looking at the file (below) it appears that when the fontsize was changed, the "gs" statement was updated while the "text" statement was not.  It seems this has something to do with the problem.  Using a text editor to change the "18" to a "24" creates a well-behaved file.
>
>============
>
>In my search for a workaround, I stumbled onto the following technique.  It sometimes helps, but I can't guarantee it:
> -- export the document in idraw-format
> -- open the idraw version, and use it to
> -- over-write the drawtool version
>
>
>============================================
>
>drawtool(
>    gs( :fillbg 1 :brush 65535,2 :fgcolor "Black",0,0,0 :bgcolor "White",1,1,1 :nonepat),
>    gs( :fillbg 0 :fgcolor "Black",0,0,0 :font "-*-helvetica-bold-r-normal-*-24-*-*-*-*-*-*-*","Helvetica-Bold",24 :graypat 0),
>    picture(
>        rectangle(164,277,270,341 :gs 0 :transform 1,-0,-0,1,12,33)
>        text(18,"asdf" :gs 1 :transform 1,0,0,1,204,345.5)
>        )
>)


Looks like a problem updating the datum used for serializing the text graphic.  Thanks for pointing this out.

You could enter such information yourself directly into the sourceforge web pages, but I will incorporate what you have sent to the mailing list and me.

Scott Johnston