def render(self, context):
"""Called when the page is actually rendered."""
obj = resolve_variable(self.obj, context)
imageid = getattr(obj, 'name', obj)
if not imageid:
return ''
if self.options.get('urlonly', False):
return unicode(huimages.imageurl(imageid))
else:
if self.options.get('nolink', False):
return huimages.scaled_tag(imageid, self.options.get('size', '1024x768'))
else:
return unicode('<a class="imagelink" href="%s">%s</a>' % (huimages.imageurl(imageid),
huimages.scaled_tag(imageid, self.options.get('size', '1024x768'))))
def __init__(self, field, obj):
self.field = field
self.parent_obj = obj
self.original_image = getattr(self.parent_obj, self.field.attname)
self.original_image_path = os.path.join(settings.MEDIA_ROOT, str(self.original_image))
self.mangled_name = str(self.original_image) # md5.new('sehkr1tt-%s-%r-%r' % (str(self.original_image), time.time(), id(self))).hexdigest()
self.scaled_image_base = os.path.join(settings.MEDIA_ROOT, ',', self.mangled_name)
self.broken_image = None
# imageid is used for webstorage
self.imageid = None
# if broken.gif exists we send that if there are any problems during scaling
if not os.path.exists(self.original_image_path):
# check if we are using web based storage
imageid = str(self.original_image)
if imageid in huimages._setup_couchdb():
self.original_image_path = huimages.imageurl(imageid)
self.imageid = imageid
else:
self.broken_image = os.path.join(settings.MEDIA_ROOT, 'broken.gif')
for size in _sizes:
setattr(self, '%s_path' % (size), curry(self.scaled_filename, size))
setattr(self, '%s' % (size), curry(self.scaled_url, size))
setattr(self, '%s_dimensions' % (size), curry(self.scaled_dimensions, size))
setattr(self, '%s_tag' % (size), curry(self.scaled_tag, size))
def scaled_url(self, size='thumb'):
"""Scales an image according to 'size' and returns the URL of the scaled image."""
if self.imageid:
return huimages.imageurl(self.imageid, size)
if not self.original_image:
return ''
outpath = self.scaled_filename(size)
url = outpath[len(settings.MEDIA_ROOT):]
if url.startswith('/'):
url = url[1:]
return urlparse.urljoin(settings.MEDIA_URL, url).replace('\\', '/')
def url(self, name):
"""Return the URL where an Image can be accessed."""
return huimages.imageurl(name)
