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Source, document page and thumbnails working, new document transformations and OCR yet to convert

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This commit is contained in:
Roberto Rosario
2011-07-15 20:25:49 -04:00
parent 743ae0fce0
commit 389253385c
7 changed files with 137 additions and 99 deletions
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37
apps/converter/backends/imagemagick/base.py
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@@ -31,15 +31,42 @@ class ConverterClass(ConverterBase):
return proc.stdout.read()
def convert_file(self, input_filepath, output_filepath, quality=QUALITY_DEFAULT, arguments=None):
#if format == u'jpg':
# extra_options += u' -quality 85'
def convert_file(self, input_filepath, output_filepath, quality=QUALITY_DEFAULT, page=DEFAULT_PAGE_NUMBER, file_format=DEFAULT_FILE_FORMAT):
arguments = []
if transformations:
for transformation in transformations:
if transformation['transformation'] == TRANSFORMATION_RESIZE:
dimensions = []
dimensions.append(unicode(transformation['arguments']['width']))
if 'height' in transformation['arguments']:
dimensions.append(unicode(transformation['arguments']['height']))
arguments.append(u'-resize')
arguments.append(u'%s' % DIMENSION_SEPARATOR.join(dimensions))
elif transformation['transformation'] == TRANSFORMATION_ZOOM:
arguments.append(u'-resize')
arguments.append(u'%d%%' % transformation['arguments']['percent'])
elif transformation['transformation'] == TRANSFORMATION_ROTATE:
arguments.append(u'-rotate')
arguments.append(u'%s' % transformation['arguments']['degrees'])
if format == u'jpg':
arguments.append(u'-quality')
arguments.append(u'85')
# Imagemagick page number is 0 base
input_arg = u'%s[%d]' % (input_filepath, page - 1)
# Specify the file format next to the output filename
output_filepath = u'%s:%s' % (file_format, output_filepath)
command = []
command.append(unicode(IM_CONVERT_PATH))
command.extend(unicode(QUALITY_SETTINGS[quality]).split())
command.append(unicode(input_filepath))
command.append(unicode(input_arg))
if arguments:
command.extend(unicode(arguments).split())
command.extend(arguments)
command.append(unicode(output_filepath))
proc = subprocess.Popen(command, close_fds=True, stderr=subprocess.PIPE, stdout=subprocess.PIPE)
return_code = proc.wait()