Re: A new implementation specific entry in font dictionary.

The patch
http://www.ghostscript.com/pipermail/gs-code-review/2003-August/003940.html
was wrong and fixed with the additional patch
http://www.ghostscript.com/pipermail/gs-cvs/2003-August/003487.html

Igor.

----- Original Message ----- 
From: "Igor V. Melichev" <[email protected]>
To: <[email protected]>
Cc: "Ray Johnston" <[email protected]>
Sent: Saturday, August 02, 2003 12:43 AM
Subject: A new implementation specific entry in font dictionary.


> This is a post-commit submission.
> 
> [Log message beg]
> Fix (pdfwrite) : Providing an access to the original font matrix via a
> special
> font dictionary key /.OrigFont .
> 
> DETAILS :
> 
> The new key is implementation specific and should not affect regular
> documents.
> It works for the case when a font is copied like this :
> 
>  /x findfont dup length dict copy
>  /y exch definefont
> 
> - it points from the copy to the original font.
> 
> This change fixes Ghostscript Bug 686970 "Overlapping characters"
> and causes a progression with 455690.pdf with pdfwrite.
> 
> A long ago Peter L. Deutsch and me discussed the heuristic in
> pdf_font_orig_matrix/font_orig_scale. I was aware of its limitations,
> but I followed Peter's authority. Now we get a real case that it can't
> handle,
> and therefore I take the responsibility for the different approach.
> 
> -igor.
> [Log message end]
> 
> Branches : HEAD.
>