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Do not resize if already the destination size

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This commit is contained in:
Andrew Murray 2019-02-05 06:15:50 +11:00
parent a5919d9384
commit 1162b4cf83
2 changed files with 17 additions and 4 deletions
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12
Tests/test_image_thumbnail.py
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@ -1,4 +1,5 @@
from .helper import PillowTestCase, hopper from .helper import PillowTestCase, hopper
from PIL import Image
class TestImageThumbnail(PillowTestCase): class TestImageThumbnail(PillowTestCase):
@ -35,3 +36,14 @@ class TestImageThumbnail(PillowTestCase):
im = hopper().resize((128, 128)) im = hopper().resize((128, 128))
im.thumbnail((100, 100)) im.thumbnail((100, 100))
self.assert_image(im, im.mode, (100, 100)) self.assert_image(im, im.mode, (100, 100))
def test_no_resize(self):
# Check that draft() can resize the image to the destination size
im = Image.open("Tests/images/hopper.jpg")
im.draft(None, (64, 64))
self.assertEqual(im.size, (64, 64))
# Test thumbnail(), where only draft() is necessary to resize the image
im = Image.open("Tests/images/hopper.jpg")
im.thumbnail((64, 64))
self.assert_image(im, im.mode, (64, 64))

3
src/PIL/Image.py
View File

@ -2129,11 +2129,12 @@ class Image(object):
self.draft(None, size) self.draft(None, size)
if self.size != size:
im = self.resize(size, resample) im = self.resize(size, resample)
self.im = im.im self.im = im.im
self.mode = im.mode
self._size = size self._size = size
self.mode = self.im.mode
self.readonly = 0 self.readonly = 0
self.pyaccess = None self.pyaccess = None