DownscaleFilter.apply() - Code Metrics - FlaskGuys/Flask-Imagine - Measure and Improve Code Quality continuously with Scrutinizer

DownscaleFilter.apply() B
last analyzed 2016-04-25 23:32 UTC

↳ Parent: DownscaleFilter

Complexity

Conditions

Size

Total Lines

Duplication

Lines	26
Ratio	100 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	5
c	1
b	0
f	0
dl	26
loc	26
rs	8.0894

"""
This module implement a downscale filter.
"""
from __future__ import division
from .interface import ImagineFilterInterface
from PIL import Image


class DownscaleFilter(ImagineFilterInterface):

    """
    Downscale filter
    """
    size = None

    def __init__(self, **kwargs):
        """
        :param kwargs: dict
        """
        if 'max' in kwargs and isinstance(kwargs['max'], list) and len(kwargs['max']) == 2:
            self.size = kwargs.get('max')
        else:
            raise ValueError('Unsupported configuration')

    def apply(self, resource):
        """
        Apply filter to resource.
        :param resource: Image
        :return: Image
        """
        if not isinstance(resource, Image.Image):
            raise ValueError('Unsupported resource format: %s' % str(type(resource)))

        original_width, original_height = resource.size

        if original_width > self.size[0] or original_height > self.size[1]:
            k = original_width / original_height

            if original_width >= original_height:
                target_width = self.size[0]
                target_height = int(target_width / k)
            else:
                target_height = self.size[1]
                target_width = int(target_height * k)

            resource_format = resource.format
            resource = resource.resize((target_width, target_height), Image.ANTIALIAS)
            resource.format = resource_format

        return resource


1		"""
2		This module implement a downscale filter.
3		"""
4		from __future__ import division
5		from .interface import ImagineFilterInterface
6		from PIL import Image
7
8
9	View Code Duplication	class DownscaleFilter(ImagineFilterInterface):
		0 ignored issues – show Duplication introduced 2016-04-12 23:25 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
10		"""
11		Downscale filter
12		"""
13		size = None
14
15		def __init__(self, **kwargs):
16		"""
17		:param kwargs: dict
18		"""
19		if 'max' in kwargs and isinstance(kwargs['max'], list) and len(kwargs['max']) == 2:
20		self.size = kwargs.get('max')
21		else:
22		raise ValueError('Unsupported configuration')
23
24		def apply(self, resource):
25		"""
26		Apply filter to resource.
27		:param resource: Image
28		:return: Image
29		"""
30		if not isinstance(resource, Image.Image):
31		raise ValueError('Unsupported resource format: %s' % str(type(resource)))
32
33		original_width, original_height = resource.size
34
35		if original_width > self.size[0] or original_height > self.size[1]:
36		k = original_width / original_height
37
38		if original_width >= original_height:
39		target_width = self.size[0]
40		target_height = int(target_width / k)
41		else:
42		target_height = self.size[1]
43		target_width = int(target_height * k)
44
45		resource_format = resource.format
46		resource = resource.resize((target_width, target_height), Image.ANTIALIAS)
47		resource.format = resource_format
48
49		return resource
50

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DownscaleFilter.apply() B last analyzed 2016-04-25 23:32 UTC

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DownscaleFilter.apply() B
last analyzed 2016-04-25 23:32 UTC