[Zope-dev] Zope+PIL+ image resizing

[Florent Guillaume]

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Florent

In article <016201c4db77$2d2f9220$0c00a8c0 at programista1> you write:
> Hallo.
> 
> I have Zope 2-7-0 on Linux platform and the following problem :)
> I'm sending an image through form on the pythonScript. I want script to
> resize image and save on the zope folder in 3 different size. OK, I use
> ExternalMethod which uses PIL library to resize these images.
> 
> External method:
> def xImageScale(img_file, maxx, maxy):
>     from PIL import Image
>     from cStringIO import StringIO
>     im = Image.open(img_file)
>     im.thumbnail((maxx, maxy), Image.ANTIALIAS)
>     out_file_str = StringIO()
>     im.save(out_file_str, im.format)
>     out_file_str.seek(0)
>     tmp=out_file_str.read()
>     out_file_str.close()
>     return tmp
> 
> 
> pyrthonScript:
> cAnimation = form.get('cAnimation','') # image from the form
> if cAnimation:
>          o.invokeFactory(id='cAnimationS.'+timeStamp, type_name='Image',
> file=context.xImageScale(cAnimation, 100, 100)
>          o.invokeFactory(id='cAnimationM.'+timeStamp, type_name='Image',
> file=context.xImageScale(cAnimation, 200, 200)
>          o.invokeFactory(id='cAnimationB.'+timeStamp, type_name='Image',
> file=context.xImageScale(cAnimation, 300,300)
> 
> 
> The result is "IOError,  cannot identify image file". So, when I want to
> resize and save only one image it works properly.
> 
> 
> Thanks in advance for any help
> KK


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Florent Guillaume, Nuxeo (Paris, France)   CTO, Director of R&D
+33 1 40 33 71 59   http://nuxeo.com   fg at nuxeo.com