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From cinzia...@dsl.pipex.com
Subject Re: fop 0.91beta fo:block-container wrongly positions fo:external-graphic when reference-orientation=90
Date Thu, 02 Mar 2006 18:18:08 GMT
Very much appreciated, thank you, needless to say, it worked.

Cinzia

Quoting Jeremias Maerki <dev@jeremias-maerki.ch>:

> Due to the lack of a full example FO file I can't be sure I fully
> understand what exactly the problem is. Given that you're using
> relatively positioned block-containers I assume you're using the latest
> release (0.91beta) despite your comments on 0.20.5 because 0.20.5 can't
> handle relatively positioned block-containers.
> 
> I had to try to reproduce what you're doing. Anyway, let's do some FO
> theory. XSL 1.0, 6.5.3, "block-container" says: "The size of the
> viewport-area and the reference-area has to be fixed in the
> inline-progression-direction. It must be specified unless the
> inline-progression-direction is parallel to the
> inline-progression-direction of the reference-area into which the areas
> generated by this flow object are placed."
> 
> In the case you're rotating the block-container's content area (ex.
> reference-orientation="90", the above citation kicks in and you need to
> specify either the width or inline-progression-dimension property on the
> block-container. That FOP didn't complain about your not doing that
> tells me there's still a problem in our code.
> 
> You've specified text-align="center" on the outer block. What's your
> intention? Centering the image? That won't work if the reference
> orientation is 90 or 270 on the block-container. In that case, you have
> to specify display-align="center" on the block-container.
> 
> So, you see you proably need to do a few additional things for the cases
> where you want to rotate images. If inline-container was working, this
> would obviously be a lot easier, but sadly that element isn't
> implemented, yet.
> 
> Here's a working example of a snippet that displays a rotated image
> centered:
>       <fo:block text-align="center">
>         <fo:block-container reference-orientation="90" display-align="center"
> inline-progression-dimension="3cm">
>           <fo:block>
>             <fo:external-graphic src="myimage.png" content-height="3cm"
> content-width="3cm" display-align="center"/>
>           </fo:block>
>         </fo:block-container>
>       </fo:block>
> 
> On 01.03.2006 14:54:22 cinzianet wrote:
> > Hi,
> > 
> > I'm encountering this problem: a rotated image (jpeg) is always positioned
> to 
> > the top left of the page above other fo objects and does not follow the
> flow of 
> > the content.
> > 
> > Code snippet:
> >     <fo:block padding-top="{$padding-top}" text-align="center">
> >       <fo:block-container reference-orientation="{$rotation}">
> >         <fo:block>
> >       <fo:external-graphic content-height="{$image-height}" content-
> > width="{$image-width}" display-align="center" scaling="uniform" scaling-
> > method="auto" src="url({$url})"/>
> >         </fo:block>
> >       </fo:block-container>
> >     </fo:block>
> > 
> > 
> > By the way: I'd like to thank and congratulate with the fop team and all 
> > participants (past and present) for the excellent work they're doing. I've
> been 
> > using fop 0.20.05 for the past few months and built quite complex report
> with 
> > table headers of up to 4 depths, and tables spanning many pages both 
> > horizontally and vertically. Hint for users: a work-around for version
> 0.20.05, 
> > to force a page break: create a table (empty or with your content) with a 
> > height="1000pt" for A4 page size.
> 
> 
> Jeremias Maerki
> 
> 
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> 


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