def scales(self):
"""Returns information to initialize JCrop for all available scales
on the current content with the given fieldname and interface."""
scales = []
croputils = IImageCroppingUtils(self.context)
cropview = self.context.restrictedTraverse('@@crop-image')
image_size = croputils.get_image_size(self.fieldname, self.interface)
all_sizes = self.exclude_scales(getAllowedSizes())
scale_names = all_sizes.keys()
scale_names.sort()
current_selected = self.request.get('scalename', all_sizes.keys()[0])
# TODO: implement other imagefields
large_image_url = self.image_url(self.fieldname)
for size in scale_names:
scale = dict()
# scale jcrop config
min_width, min_height = self._min_size(image_size, all_sizes[size])
max_width, max_height = self.default_cropping_max_size[0],\
self.default_cropping_max_size[1]
ratio_width, ratio_height = all_sizes[size][0], all_sizes[size][1]
# lookup saved crop info
select_box = cropview._read(self.fieldname, size)
is_cropped = True
if select_box is None:
select_box = (0, 0, min_width, min_height)
is_cropped = False
config = dict([
("allowResize", True),
("allowMove", True),
("trueSize", [image_size[0], image_size[1]]),
("boxWidth", self.default_editor_size[0]),
("boxHeight", self.default_editor_size[1]),
("setSelect", select_box),
("aspectRatio", "%.2f" % (
float(ratio_width) / float(ratio_height))),
("minSize", [min_width, min_height]),
("maxSize", [max_width, max_height]),
("imageURL", large_image_url),
])
scale["config"] = json.dumps(config)
# scale value/id
scale["id"] = size
scale["title"] = "%s %s" % (size, all_sizes[size])
scale["selected"] = size == current_selected and 'selected' or ''
# flag if saved cropped scale was found
# this helps to prevent generating unused
# default scales in preview column
scale["is_cropped"] = is_cropped
# TODO: this is for thumbnail live-preview
scale["thumb_width"] = ratio_width
scale["thumb_height"] = ratio_height
scales.append(scale)
return scales
def apply_crops_after_copy(context, event):
crops = IAnnotations(event.original).get(PAI_STORAGE_KEY)
if not crops:
return
croputils = IImageCroppingUtils(context)
request = getRequest()
cropper = getMultiAdapter((context, request), name='crop-image')
for fieldname in croputils.image_field_names():
for crop_key in crops:
if crop_key.startswith(fieldname):
scalename = crop_key[len(fieldname) + 1:]
cropper._crop(fieldname, scalename, crops[crop_key])
def _crop(self, fieldname, scale, box):
"""switch between dexterity and Archetypes
"""
croputils = IImageCroppingUtils(self.context)
data = croputils.get_image_data(fieldname)
original_file = StringIO(data)
image = PIL.Image.open(original_file)
image_format = image.format or self.DEFAULT_FORMAT
cropped_image = image.crop(box)
cropped_image_file = StringIO()
cropped_image.save(cropped_image_file, image_format, quality=100)
cropped_image_file.seek(0)
croputils.save_cropped(fieldname, scale, cropped_image_file)
# store crop information in annotations
self._store(fieldname, scale, box)
def _crop(self, fieldname, scale, box):
"""Delegate to store.
"""
storage = Storage(self.context)
storage.store(fieldname, scale, box)
if IImageCroppingDX.providedBy(self.context):
return
# AT BBB scaling.
croputils = IImageCroppingUtils(self.context)
data = croputils.get_image_data(fieldname)
original_file = BytesIO(data)
image = PIL.Image.open(original_file)
image_format = image.format or self.DEFAULT_FORMAT
cropped_image = image.crop(box)
cropped_image_file = BytesIO()
cropped_image.save(cropped_image_file, image_format, quality=100)
cropped_image_file.seek(0)
croputils.save_cropped(fieldname, scale, cropped_image_file)
def _crop(self, fieldname, scale, box, interface=None):
"""switch between dexterity and Archetypes
"""
croputils = IImageCroppingUtils(self.context)
field = croputils.get_image_field(fieldname)
data = croputils.get_image_data(fieldname)
original_file = StringIO(data)
image = PIL.Image.open(original_file)
image_format = image.format or self.DEFAULT_FORMAT
cropped_image = image.crop(box)
cropped_image_file = StringIO()
cropped_image.save(cropped_image_file, image_format, quality=100)
cropped_image_file.seek(0)
croputils.save_cropped(fieldname, field, scale, cropped_image_file,
interface)
# store crop information in annotations
self._store(fieldname, scale, box)
def _croputils(self):
return IImageCroppingUtils(self.context)
def scales(self, fieldname=None):
"""Returns information to initialize JCrop for all available scales
on the current content with the given fieldname and interface."""
scales = []
croputils = IImageCroppingUtils(self.context)
cropview = self.context.restrictedTraverse('@@crop-image')
if fieldname is None:
fieldname = self.fieldname
image_size = croputils.get_image_size(fieldname, self.interface)
all_sizes = getAllowedSizes()
current_selected = self.request.get('scalename', all_sizes.keys()[0])
large_image_url = self.image_url(fieldname)
constrain_cropping = self._editor_settings.constrain_cropping
cropping_for = self._editor_settings.cropping_for
for size in all_sizes:
if constrain_cropping and size not in cropping_for:
continue
scale = dict()
# scale jcrop config
min_width, min_height = self._min_size(image_size, all_sizes[size])
max_width, max_height = self.default_cropping_max_size[0], \
self.default_cropping_max_size[1]
ratio_width, ratio_height = all_sizes[size][0], all_sizes[size][1]
# lookup saved crop info
select_box = cropview._read(fieldname, size)
is_cropped = True
if select_box is None:
select_box = (0, 0, min_width, min_height)
is_cropped = False
config = dict([
("allowResize", True),
("allowMove", True),
("trueSize", [image_size[0], image_size[1]]),
("boxWidth", self.default_editor_size[0]),
("boxHeight", self.default_editor_size[1]),
("setSelect", select_box),
("aspectRatio",
"%.2f" % (float(ratio_width) / float(ratio_height))),
("minSize", [min_width, min_height]),
("maxSize", [max_width, max_height]),
("imageURL", large_image_url),
])
scale["config"] = json.dumps(config)
# scale value/id
scale["id"] = size
scale["title"] = "%s %s" % (size, all_sizes[size])
scale["selected"] = size == current_selected and 'selected' or ''
# flag if saved cropped scale was found
# this helps to prevent generating unused
# default scales in preview column
scale["is_cropped"] = is_cropped
# TODO: this is for thumbnail live-preview
scale["thumb_width"] = ratio_width
scale["thumb_height"] = ratio_height
# safe original image url
scale["image_url"] = large_image_url
scales.append(scale)
return scales
def image_field_names(self):
return IImageCroppingUtils(self.context).image_field_names()
