Exemple #1
0
 def get_thumb(self, scale, key = None, direction = "thumbnail"):
     """ Return data from plone scale or None"""
     #Make cache optional
     if key is None:
         key = getattr(self.context, 'blob_key', 'image')
     cachekey = (self.context.uid, scale, key, direction)
     cached = self.thumb_cache.get(cachekey)
     if cached:
         return cached
     if direction not in _ALLOWED_SCALE_DIRECTIONS:
         return
     scales = get_image_scales()
     maxwidth, maxheight = scales[scale]
     blobs = IBlobs(self.context)
     if key in blobs:
         registry = get_current_registry()
         if blobs[key].mimetype in registry.settings['supported_thumbnail_mimetypes']:
             with blobs[key].blob.open() as f:
                 try:
                     thumb_data, image_type, size = scaleImage(
                         f, width = maxwidth, height = maxheight, direction = direction
                     )
                 except IOError:
                     #FIXME: Logging?
                     return
             thumb = Thumbnail(thumb_data, image_type = image_type, size = size)
             self.thumb_cache.put(cachekey, thumb)
             return thumb
Exemple #2
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def thumb_view(context, request, subpath=None):
    if subpath is None:
        subpath = request.subpath
    if len(subpath) != 2:
        return HTTPNotFound()
    key = subpath[0]  #Usually 'image', the blob area where it's stored
    scale_name = subpath[1]  #Some scale, like 'col-1'
    scales = get_image_scales()
    if scale_name not in scales:
        return HTTPNotFound()
    thumbnails = request.registry.queryAdapter(context, IThumbnails)
    if not thumbnails:
        #Log?
        raise HTTPNotFound()
    thumb = thumbnails.get_thumb(scale_name, key=key)
    if thumb:
        return Response(
            body=thumb.image,
            headerlist=[
                #     disposition = 'inline'
                # ('Content-Disposition', '%s;filename="%s"' % (
                #     disposition, context.filename.encode('ascii', 'ignore'))),
                ('Content-Type', thumb.mimetype),
                ('Etag', thumb.etag)
            ])
    raise HTTPNotFound()
Exemple #3
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def thumb_view(context, request, subpath=None):
    if subpath is None:
        subpath = request.subpath
    if len(subpath) != 2:
        return HTTPNotFound()
    key = subpath[0]  # Usually 'image', the blob area where it's stored
    scale_name = subpath[1]  # Some scale, like 'col-1'
    scales = get_image_scales()
    if scale_name not in scales:
        return HTTPNotFound()
    thumbnails = request.registry.queryAdapter(context, IThumbnails)
    if not thumbnails:
        # Log?
        raise HTTPNotFound()
    thumb = thumbnails.get_thumb(scale_name, key=key)
    if thumb:
        return Response(
            body=thumb.image,
            headerlist=[
                #     disposition = 'inline'
                # ('Content-Disposition', '%s;filename="%s"' % (
                #     disposition, context.filename.encode('ascii', 'ignore'))),
                ("Content-Type", thumb.mimetype),
                ("Etag", thumb.etag),
            ],
        )
    raise HTTPNotFound()
Exemple #4
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def images_panel(context, request, va, **kw):
    response = {'mime_to_title': image_mime_to_title,
                'scales': get_image_scales(request.registry)}
    return render('arche:templates/sysinfo/images.pt', response, request = request)
Exemple #5
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def thumb_url(request, context, scale, key = None, direction = 'thumbnail'):
    if key is None:
        key = getattr(context, 'blob_key', 'image')
    scales = get_image_scales(request.registry)
    if scale in scales and IThumbnailedContent.providedBy(context) and key in IBlobs(context, ()):
        return request.resource_url(context, 'thumbnail', key, scale, direction)