[XeTeX] bidi & eso-pic are broken

[Vafa Khalighi]

Hey

With your posted example on github, changes are identical. You only need to
understand how the picture environment behaves in RTL to be able to do
these yourself.

\renewcommand{\ThisCenterWallPaper}[2]{%
\AddToShipoutPicture*{\put(-\LenToUnit{\dimexpr(\paperwidth-\textwidth)},\LenToUnit{\wpYoffset}){%
     \parbox[b][\paperheight]{\paperwidth}{%
       \vfill
       \centering
       \includegraphics[width=#1\paperwidth,height=#1\paperheight,%
                        keepaspectratio]{#2}%
       \vfill
     }}}
}


On Mon, Jun 10, 2013 at 5:41 PM, Fahad Al-Saidi <fahad.alsaidi at gmail.com>wrote:

> Thanks Vafa for helping me. I would like to ask if there is any  way to
> fix wallpaper package to work as expected in RTL document.
>
> Regards,
> Fahad
>
>
> On Mon, Jun 10, 2013 at 5:50 AM, Vafa Khalighi <vafa.klgh at gmail.com>wrote:
>
>> Hi
>>
>> I have just done that. I only needed to change the horizontal co-ordinate
>> of \put command as previously mentioned and it works as one would expect in
>> RTL. I have changed the horizontal co-ordinate of \put from 0pt to
>> -(\paperwidth-\textwidth).
>>
>> Vafa
>>
>>
>> On Sun, Jun 9, 2013 at 5:06 PM, Fahad Al-Saidi <fahad.alsaidi at gmail.com>wrote:
>>
>>> Thanks Vafa for the clarification. If you can guide me what the the
>>> recommended way to deal with pictures especially water mark in RTL document
>>> since wallpaper does not work as expected. I am working in a document for
>>> children that includes hundreds pictures and I am using wallpaper & eso-pic
>>> packages heavily. Now I can return to ubuntu 12.04' packages but I will
>>> face the problem soon or later.
>>>
>>>
>>> On Sun, Jun 9, 2013 at 9:56 AM, Vafa Khalighi <vafa.klgh at gmail.com>wrote:
>>>
>>>> This has nothing to do with eso-pic-bidi file. In the previous
>>>> versions of bidi package, the behaviour of picture environment was changes
>>>> so that in RTL, still the reference point was at the right (where the line
>>>> starts in RTL) but commands like \put behaved the same in LTR and RTL. i.e.
>>>> if you gave a positive horizontal coordinate to \put, t would go to the
>>>> right and if you gave a negative horizontal coordinate, it would go to the
>>>> left.
>>>>
>>>> Later on, we found that it was more problematic rather than being
>>>> useful. Therefore I removed that modification to picture environment.
>>>>
>>>>
>>>> Your example, will work fine in RTL, if you just change the horizontal
>>>> coordinate of \put in your document. On the other hand, \RTL and \LTR are
>>>> not commands; RTL and LTR are environments.
>>>>
>>>> Vafa
>>>>
>>>>
>>>>
>>>
>>>
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>>
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>
>
> --
> my blog
>
> http://fahadalsaidi.blogspot.com
>
>
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-- 
Vafa
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