[etoys-dev] remove the free-standing .gif?

Michael McKelvey mmckelve at mste.illinois.edu
Fri Sep 11 18:58:16 EDT 2009


Quoth the venerable Bert Freudenberg:
>
> On 11.09.2009, at 20:53, Michael McKelvey wrote:
>
>> Squeak Developers,
>>
>> I'm sorry I'm only just replying to this message... I've been out sick 
>> all week and am just catching up on email.
>>
>> Currently, when Kathleen Harness uploads a project to the  EtoysIllinois 
>> site, she also uploads the GIF image that is  automatically generated 
>> upon saving an Etoys project.  If you are  talking about a change wherein 
>> a PNG file will be created instead of  a GIF file, that would be just 
>> fine for our purposes.  I am not sure  that's what you are talking about, 
>> though, as I don't quite  understand the following line from the message 
>> below:
>>
>> "start using the .png thumbnail embedded in the outer .pr file"
>>
>> Could someone please describe what the proposed changes would mean  for 
>> us, particularly since we are running our server using Apache &  PHP, not 
>> a Squeak-based webserver like a SuperSwiki?  Would we need  to be able to 
>> somehow extract a PNG file from the PR file?  I'm not  sure whether we 
>> would be able to do that using PHP.  Thank you very  much for any help 
>> you can offer us!
>
>
> You can easily do that on PHP, it is really simple:
>
> An Etoys project file is simply a zip file:
> ===============
> Faust:Etoys bert$ unzip -t Heart.001.pr
> Archive:  Heart.001.pr
>     testing: Heart.001.pr             OK
>     testing: Heart.001.rc.gz          OK
>     testing: Heart.html               OK
>     testing: manifest                 OK
>     testing: thumbnail.png            OK
> No errors detected in compressed data of Heart.001.pr.
> ===============
>
> So to extract the thumbnail, simply do the equivalent of
>
> ===============
> Faust:Etoys bert$ unzip Heart.001.pr  thumbnail.png
> Archive:  Heart.001.pr
>  extracting: thumbnail.png
> ===============
>
> See? Easy :)
>
> - Bert -
>

Ok, that is very manageable.  How long has the PNG thumbnail been included 
in the PR file?  Is that a relatively new feature?

     --Michael--



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