2009/6/18 Carsten Dominik <carsten.dominik@gmail.com>

>
> On Jun 17, 2009, at 2:40 AM, Nicolas Girard wrote:
>
>  Hi all,
>>
>> currently the code in org-exp-blocks is intended for pre-processing only.
>> It seems to me like org-mode would gain a very powerful feature, if
>> blocks could also be previewed in their own buffer, using the same
>> mechanism as the org-format-latex function.
>> What do you think ?
>>
>
> I don't see how this could be done in a general way.  I guess you mean in
> particular
> the graphics blocks like ditaa?
>

Yes. For any block type bt, if it makes sense, it would be possible to write
such org-block-<bt>-generate-image(body) that takes the block as argument
and returns the path of the image it produced.

Then:
- for exporting: the existing org-export-blocks-format-<bt> functions would
simply call their respective org-block-<bt>-generate-image and work the same
;
- for previewing a block of type <bt>: if such org-block-<bt>-generate-image
exists, call it and display it the same way org-format-latex does

Wouldn't it be great ?

Nicolas