CropFilter.apply() - Code Metrics - Inspection of "Merge pull request #16 from FlaskGuys/CropFilter" - FlaskGuys/Flask-Imagine - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( fc6031...7d88b0 )

by Dmitry

created 2016-04-13 00:26 UTC

CropFilter.apply() B

↳ Parent: CropFilter

Complexity

Conditions

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Metric	Value
cc	6
dl	0
loc	31
rs	7.5384

"""
This module implement a Crop filter.
"""
from .interface import ImagineFilterInterface
from PIL import Image


class CropFilter(ImagineFilterInterface):
    """
    Crop filter
    """
    start = None
    size = None

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

        if 'size' in kwargs and isinstance(kwargs['size'], list) and len(kwargs['size']) == 2:
            self.size = kwargs.get('size')
        else:
            raise ValueError('Unknown image size.')

    def apply(self, resource):
        """
        Apply filter to resource
        :param resource: Image
        :return: Image
        """
        if not isinstance(resource, Image.Image):
            raise ValueError('Unknown resource format')

        original_width, original_height = resource.size

        if self.start[0] < original_width or self.start[1] < original_height:
            left = self.start[0]
            upper = self.start[1]
        else:
            left = 0
            upper = 0

        right = self.start[0] + self.size[0]
        lower = self.start[1] + self.size[1]

        resource = resource.crop(
            (
                left,
                upper,
                right if right < original_width else original_width,
                lower if lower < original_height else original_height
            )
        )

        return resource


1			"""
2			This module implement a Crop filter.
3			"""
4			from .interface import ImagineFilterInterface
5			from PIL import Image
6
7
8			class CropFilter(ImagineFilterInterface):
9			"""
10			Crop filter
11			"""
12			start = None
13			size = None
14
15			def __init__(self, **kwargs):
16			"""
17			:param kwargs: dict
18			"""
19			if 'start' in kwargs and isinstance(kwargs['start'], list) and len(kwargs['start']) == 2:
20			self.start = kwargs.get('start')
21			else:
22			raise ValueError('Unknown start position.')
23
24			if 'size' in kwargs and isinstance(kwargs['size'], list) and len(kwargs['size']) == 2:
25			self.size = kwargs.get('size')
26			else:
27			raise ValueError('Unknown image size.')
28
29			def apply(self, resource):
30			"""
31			Apply filter to resource
32			:param resource: Image
33			:return: Image
34			"""
35			if not isinstance(resource, Image.Image):
36			raise ValueError('Unknown resource format')
37
38			original_width, original_height = resource.size
39
40			if self.start[0] < original_width or self.start[1] < original_height:
41			left = self.start[0]
42			upper = self.start[1]
43			else:
44			left = 0
45			upper = 0
46
47			right = self.start[0] + self.size[0]
48			lower = self.start[1] + self.size[1]
49
50			resource = resource.crop(
51			(
52			left,
53			upper,
54			right if right < original_width else original_width,
55			lower if lower < original_height else original_height
56			)
57			)
58
59			return resource
60

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CropFilter.apply() B

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