Easy thumbnails for Django
Project description
The powerful, yet easy to implement thumbnailing application for Django.
To install this application into your project, just add it to your INSTALLED_APPS setting (and run manage.py syncdb):
INSTALLED_APPS = (
...
'easy_thumbnails',
)
Template usage
To generate thumbnails in your template, use the {% thumbnail %} tag. To make this tag available for use in your template, use:
{% load thumbnail %}
Basic tag Syntax:
{% thumbnail [source] [size] [options] %}
source must be a File object, usually an Image/FileField of a model instance.
size can either be:
the size in the format [width]x[height] (for example, {% thumbnail person.photo 100x50 %}) or
a variable containing a valid size (i.e. either a string in the [width]x[height] format or a tuple containing two integers): {% thumbnail person.photo size_var %}.
options are a space separated list of options which are used when processing the image to a thumbnail such as sharpen, crop and quality=90.
Model usage
You can use the ThumbnailerField or ThumbnailerImageField fields (based on FileField and ImageField, respectively) for easier access to retrieve (or generate) thumbnail images.
By passing a resize_source argument to the ThumbnailerImageField, you can resize the source image before it is saved:
class Profile(models.Model):
user = models.ForeignKey('auth.User')
avatar = ThumbnailerImageField(
upload_to='avatars',
resize_source=dict(size=(50, 50), crop='smart'),
)
Lower level usage
Thumbnails are generated with a Thumbnailer instance. Usually you’ll use the get_thumbnailer method to generate one of these, for example:
from easy_thumbnails.files import get_thumbnailer
def square_thumbnail(source):
thumbnail_options = dict(size=(100, 100), crop=True, bw=True)
return get_thumbnailer(source).get_thumbnail(thumbnail_options)
See the docs directory for more comprehensive usage documentation.
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