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Transformation interpretation error should stop a document image from being displayed

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This commit is contained in:
Roberto Rosario
2011-07-25 03:38:38 -04:00
parent 39010d7653
commit 5f969351b1
3 changed files with 59 additions and 46 deletions
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36
apps/converter/backends/python/base.py
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@@ -100,20 +100,25 @@ class ConverterClass(ConverterBase):
# do something to im
except EOFError:
pass # end of sequence
if transformations:
aspect = 1.0 * im.size[0] / im.size[1]
for transformation in transformations:
if transformation['transformation'] == TRANSFORMATION_RESIZE:
width = int(transformation['arguments']['width'])
height = int(transformation['arguments'].get('height', 1.0 * width * aspect))
im = self.resize(im, (width, height))
elif transformation['transformation'] == TRANSFORMATION_ZOOM:
decimal_value = float(transformation['arguments']['percent']) / 100
im = im.transform((im.size[0] * decimal_value, im.size[1] * decimal_value), Image.EXTENT, (0, 0, im.size[0], im.size[1]))
elif transformation['transformation'] == TRANSFORMATION_ROTATE:
# PIL counter degress counter-clockwise, reverse them
im = im.rotate(360 - transformation['arguments']['degrees'])
try:
if transformations:
aspect = 1.0 * im.size[0] / im.size[1]
for transformation in transformations:
arguments = transformation.get('arguments')
if transformation['transformation'] == TRANSFORMATION_RESIZE:
width = int(arguments.get('width', 0))
height = int(arguments.get('height', 1.0 * width * aspect))
im = self.resize(im, (width, height))
elif transformation['transformation'] == TRANSFORMATION_ZOOM:
decimal_value = float(arguments.get('percent', 100)) / 100
im = im.transform((im.size[0] * decimal_value, im.size[1] * decimal_value), Image.EXTENT, (0, 0, im.size[0], im.size[1]))
elif transformation['transformation'] == TRANSFORMATION_ROTATE:
# PIL counter degress counter-clockwise, reverse them
im = im.rotate(360 - arguments.get('degrees', 0))
except:
# Ignore all transformation error
pass
if im.mode not in ('L', 'RGB'):
im = im.convert('RGB')
@@ -177,3 +182,6 @@ class ConverterClass(ConverterBase):
img.save(out, 'JPEG', quality=75)
else:
return img
#if isinstance(self.regex, basestring):
# self.regex = re.compile(regex)