mirror of
https://github.com/Hopiu/django-imagekit.git
synced 2026-03-18 14:20:24 +00:00
f570bd0d7f
Replaced calls to Image.open with an open_image utility function. The open_image utility calls Image.open, but then wraps the opened Image's copy method with a version that preserves EXIF data. This allows an ImageSpec to copy the original image, yet still provide all the original image's exif data to the processor pipeline.
48 lines
1 KiB
Python
48 lines
1 KiB
Python
""" ImageKit utility functions """
|
|
|
|
import tempfile, types
|
|
from django.utils.functional import wraps
|
|
from lib import Image
|
|
|
|
|
|
def img_to_fobj(img, format, **kwargs):
|
|
tmp = tempfile.TemporaryFile()
|
|
img.convert('RGB').save(tmp, format, **kwargs)
|
|
tmp.seek(0)
|
|
return tmp
|
|
|
|
|
|
def get_spec_files(instance):
|
|
from imagekit.models import ImageSpecFile
|
|
spec_files = []
|
|
for key in dir(instance):
|
|
try:
|
|
value = getattr(instance, key)
|
|
except AttributeError:
|
|
continue
|
|
if isinstance(value, ImageSpecFile):
|
|
spec_files.append(value)
|
|
return spec_files
|
|
|
|
|
|
def open_image(target):
|
|
img = Image.open(target)
|
|
img.copy = types.MethodType(_wrap_copy(img.copy), img, img.__class__)
|
|
return img
|
|
|
|
|
|
def _wrap_copy(f):
|
|
@wraps(f)
|
|
def copy(self):
|
|
img = f()
|
|
try:
|
|
img.app = self.app
|
|
except AttributeError:
|
|
pass
|
|
try:
|
|
img._getexif = self._getexif
|
|
except AttributeError:
|
|
pass
|
|
return img
|
|
return copy
|
|
|