def create_image(self, output_filename, width, height):
from cropduster.utils import process_image, get_image_extension
temp_file = tempfile.NamedTemporaryFile(suffix=get_image_extension(self.image), delete=False)
temp_filename = temp_file.name
with open(self.image.filename, mode='rb') as f:
temp_file.write(f.read())
temp_file.seek(0)
image = PIL.Image.open(temp_filename)
crop_args = self.box.as_tuple()
def crop_and_resize_callback(im):
from cropduster.utils import smart_resize
im = im.crop(crop_args)
return smart_resize(im, final_w=width, final_h=height)
new_image = process_image(image, output_filename, crop_and_resize_callback)
new_image.crop = self
temp_file.close()
os.unlink(temp_filename)
return new_image
def create_image(self, output_filename, width=None, height=None, max_w=None, max_h=None):
from cropduster.exceptions import CropDusterResizeException
from cropduster.utils import process_image, get_image_extension
new_w, new_h = self.box.size
if new_w < width or new_h < height:
raise CropDusterResizeException(
u"Crop box (%dx%d) is too small for resize to (%dx%d)" % (new_w, new_h, width, height))
# Scale our initial width and height based on the max_w and max_h
max_scales = []
if max_w and max_w < width:
max_scales.append(max_w / width)
if max_h and max_h < height:
max_scales.append(max_h / height)
if max_scales:
max_scale = min(max_scales)
width = int(round(width * max_scale))
height = int(round(height * max_scale))
temp_file = tempfile.NamedTemporaryFile(suffix=get_image_extension(self.image), delete=False)
temp_filename = temp_file.name
with open(self.image.filename, mode='rb') as f:
temp_file.write(f.read())
temp_file.seek(0)
image = PIL.Image.open(temp_filename)
crop_args = self.box.as_tuple()
def crop_and_resize_callback(im):
from cropduster.utils import smart_resize
im = im.crop(crop_args)
return smart_resize(im, final_w=width, final_h=height)
new_image = process_image(image, output_filename, crop_and_resize_callback)
new_image.crop = self
temp_file.close()
os.unlink(temp_filename)
return new_image
def create_image(self, output_filename, width, height):
from cropduster.utils import process_image, get_image_extension
temp_file = tempfile.NamedTemporaryFile(suffix=get_image_extension(self.image), delete=False)
temp_filename = temp_file.name
with default_storage.open(self.image.filename, mode='rb') as f:
temp_file.write(f.read())
temp_file.seek(0)
image = PIL.Image.open(temp_filename)
image.filename = self.image.filename
crop_args = self.box.as_tuple()
def crop_and_resize_callback(im):
from cropduster.utils import smart_resize
im = im.crop(crop_args)
return smart_resize(im, final_w=width, final_h=height)
new_image = process_image(image, output_filename, crop_and_resize_callback)
new_image.crop = self
temp_file.close()
os.unlink(temp_filename)
return new_image
def upload(request):
if request.method == 'GET':
return index(request)
# The data we'll be returning as JSON
data = {
'warning': [],
}
form = UploadForm(request.POST, request.FILES)
if not form.is_valid():
errors = form['image'].errors or form.errors
return json_error(request,
'upload',
action="uploading file",
errors=[force_text(errors)])
form_data = form.cleaned_data
is_standalone = bool(form_data.get('standalone'))
orig_file_path = form_data['image'].name
if six.PY2 and isinstance(orig_file_path, six.text_type):
orig_file_path = orig_file_path.encode('utf-8')
orig_image = get_relative_media_url(orig_file_path)
with default_storage.open(orig_image, mode='rb') as f:
img = PIL.Image.open(BytesIO(f.read()))
img.filename = f.name
(w, h) = (orig_w, orig_h) = img.size
if is_animated_gif(img) and not has_animated_gif_support():
data['warning'].append(
u"This server does not have animated gif support; your uploaded image "
u"has been made static.")
tmp_image = Image(image=orig_image)
preview_w = form_data.get('preview_width') or PREVIEW_WIDTH
preview_h = form_data.get('preview_height') or PREVIEW_HEIGHT
# First pass resize if it's too large
resize_ratio = min(preview_w / w, preview_h / h)
def fit_preview(im):
(w, h) = im.size
if resize_ratio < 1:
w = int(round(w * resize_ratio))
h = int(round(h * resize_ratio))
preview_img = im.resize((w, h), PIL.Image.ANTIALIAS)
else:
preview_img = im
return preview_img
if not is_standalone:
preview_file_path = tmp_image.get_image_path('_preview')
process_image(img, preview_file_path, fit_preview)
data.update({
'crop': {
'orig_image': orig_image,
'orig_w': orig_w,
'orig_h': orig_h,
'image_id': None,
},
'url': tmp_image.get_image_url('_preview'),
'orig_image': orig_image,
'orig_w': orig_w,
'orig_h': orig_h,
'width': w,
'height': h,
})
if not is_standalone:
return HttpResponse(json.dumps(data), content_type='application/json')
size = Size('crop', w=img.size[0], h=img.size[1])
md5 = form_data.get('md5')
try:
standalone_image = StandaloneImage.objects.get(md5=md5)
except StandaloneImage.DoesNotExist:
standalone_image = StandaloneImage(md5=md5, image=orig_image)
standalone_image.save()
cropduster_image, created = Image.objects.get_or_create(
content_type=ContentType.objects.get_for_model(StandaloneImage),
object_id=standalone_image.pk)
if not cropduster_image.image:
cropduster_image.image = orig_image
cropduster_image.save()
elif cropduster_image.image.name != orig_image:
data['crop']['orig_image'] = data[
'orig_image'] = cropduster_image.image.name
data['url'] = cropduster_image.get_image_url('_preview')
with cropduster_image.image as f:
f.open()
img = PIL.Image.open(BytesIO(f.read()))
img.filename = f.name
preview_file_path = cropduster_image.get_image_path('_preview')
if not default_storage.exists(preview_file_path):
process_image(img, preview_file_path, fit_preview)
thumb = cropduster_image.save_size(size, standalone=True, commit=False)
sizes = form_data.get('sizes') or []
if len(sizes) == 1:
size = sizes[0]
else:
size = Size('crop')
data.update({
'thumbs': [{
'crop_x': thumb.crop_x,
'crop_y': thumb.crop_y,
'crop_w': thumb.crop_w,
'crop_h': thumb.crop_h,
'width': thumb.width,
'height': thumb.height,
'id': None,
'changed': True,
'size': json.dumps(size),
'name': thumb.name,
}]
})
data['crop'].update({
'image_id': cropduster_image.pk,
'sizes': json.dumps([size]),
})
return HttpResponse(json.dumps(data), content_type='application/json')
def upload(request):
if request.method == 'GET':
return index(request)
# The data we'll be returning as JSON
data = {
'warning': [],
}
form = UploadForm(request.POST, request.FILES)
if not form.is_valid():
errors = form['image'].errors or form.errors
return json_error(request, 'upload', action="uploading file",
errors=[force_text(errors)])
form_data = form.cleaned_data
is_standalone = bool(form_data.get('standalone'))
orig_file_path = form_data['image'].name
if six.PY2 and isinstance(orig_file_path, unicode):
orig_file_path = orig_file_path.encode('utf-8')
orig_image = get_relative_media_url(orig_file_path)
img = PIL.Image.open(orig_file_path)
(w, h) = (orig_w, orig_h) = img.size
if is_animated_gif(img) and not has_animated_gif_support():
data['warning'].append(
u"This server does not have animated gif support; your uploaded image "
u"has been made static.")
tmp_image = Image(image=orig_image)
preview_w = form_data.get('preview_width') or PREVIEW_WIDTH
preview_h = form_data.get('preview_height') or PREVIEW_HEIGHT
# First pass resize if it's too large
resize_ratio = min(preview_w / w, preview_h / h)
def fit_preview(im):
(w, h) = im.size
if resize_ratio < 1:
w = int(round(w * resize_ratio))
h = int(round(h * resize_ratio))
preview_img = im.resize((w, h), PIL.Image.ANTIALIAS)
else:
preview_img = im
return preview_img
if not is_standalone:
preview_file_path = tmp_image.get_image_path('_preview')
process_image(img, preview_file_path, fit_preview)
data.update({
'crop': {
'orig_image': orig_image,
'orig_w': orig_w,
'orig_h': orig_h,
'image_id': None,
},
'url': tmp_image.get_image_url('_preview'),
'orig_image': orig_image,
'orig_w': orig_w,
'orig_h': orig_h,
'width': w,
'height': h,
})
if not is_standalone:
return HttpResponse(json.dumps(data), content_type='application/json')
size = Size('crop', w=img.size[0], h=img.size[1])
md5 = form_data.get('md5')
try:
standalone_image = StandaloneImage.objects.get(md5=md5)
except StandaloneImage.DoesNotExist:
standalone_image = StandaloneImage(md5=md5, image=orig_image)
standalone_image.save()
cropduster_image, created = Image.objects.get_or_create(
content_type=ContentType.objects.get_for_model(StandaloneImage),
object_id=standalone_image.pk)
if not cropduster_image.image:
cropduster_image.image = orig_image
cropduster_image.save()
elif cropduster_image.image.name != orig_image:
data['crop']['orig_image'] = data['orig_image'] = cropduster_image.image.name
data['url'] = cropduster_image.get_image_url('_preview')
img = PIL.Image.open(cropduster_image.image.path)
preview_file_path = cropduster_image.get_image_path('_preview')
if not os.path.exists(preview_file_path):
process_image(img, preview_file_path, fit_preview)
thumb = cropduster_image.save_size(size, standalone=True)
sizes = form_data.get('sizes') or []
if len(sizes) == 1:
size = sizes[0]
else:
size = Size('crop')
data.update({
'thumbs': [{
'crop_x': thumb.crop_x,
'crop_y': thumb.crop_y,
'crop_w': thumb.crop_w,
'crop_h': thumb.crop_h,
'width': thumb.width,
'height': thumb.height,
'id': None,
'changed': True,
'size': json.dumps(size),
'name': thumb.name,
}]
})
data['crop'].update({
'image_id': cropduster_image.pk,
'sizes': json.dumps([size]),
})
return HttpResponse(json.dumps(data), content_type='application/json')
