[ansel] Patch for user pref image type

[Heath S. Hendrickson]

As it's set up now, the only choices listed are both available in IM and 
GD.  If you mean that support for PNG or JPEG will dissapear from either 
GD or IM in the near future, then there will be much larger problems 
than this pref setting.  Ansel has to support JPEG as that's the format 
that all digital cameras natively create (not counting RAW formats).  
I'm not aware of any that create images in PNG as of yet.  So there's a 
requirement that whatever image engine is used has to support both PNG 
and JPEG.

The functionality already existed in the Horde_Image module, I just 
enabled it in Ansel via a user pref.

I'm not trying to force the issue, just making it available as it had a 
significant imact on image file sizes when I went from PNG to JPEG, but 
some people may want PNG and other mileage will most likely vary from mine.

heath

Chuck Hagenbuch wrote:

>Quoting "Heath S. Hendrickson" <heath at outerspaceconsultants.com>:
>
>  
>
>>The attached patch goes with the user pref patches submitted earlier.
>>This makes it user configurable what format should be used for the
>>system created image files (_thumb and _screen).
>>    
>>
>
>I still don't like this, as there's no guarantee that the chosen format is
>actually available, thus making it entirely possible for a user to break their
>gallery without any real indication thereof.
>
>-chuck
>
>--
>Charles Hagenbuch, <chuck at horde.org>
>"Here, I brought some cole slaw. It's made from peeeooople! Just kidding."
>
>  
>