def get_preview_size(self):
dimensions = []
dimensions.append(unicode(self.preview_width))
if self.preview_height:
dimensions.append(unicode(self.preview_height))
return DIMENSION_SEPARATOR.join(dimensions)
def get_preview_size(self):
dimensions = []
dimensions.append(force_text(self.preview_width))
if self.preview_height:
dimensions.append(force_text(self.preview_height))
return DIMENSION_SEPARATOR.join(dimensions)
def convert_file(self, input_filepath, output_filepath, transformations=None, page=DEFAULT_PAGE_NUMBER, file_format=DEFAULT_FILE_FORMAT):
arguments = []
try:
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'])
except:
pass
if file_format.lower() == u'jpeg' or file_format.lower() == u'jpg':
arguments.append(u'-quality')
arguments.append(u'85')
# Graphicsmagick 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(GM_PATH))
command.append(u'convert')
command.extend(unicode(GM_SETTINGS).split())
command.append(unicode(input_arg))
if arguments:
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()
if return_code != 0:
#Got an error from convert program
error_line = proc.stderr.readline()
if (CONVERTER_ERROR_STRING_NO_DECODER in error_line) or (CONVERTER_ERROR_STARTS_WITH in error_line):
#Try to determine from error message which class of error is it
raise UnknownFileFormat
else:
raise ConvertError(error_line)
def convert_file(self,
input_filepath,
output_filepath,
transformations=None,
page=DEFAULT_PAGE_NUMBER,
file_format=DEFAULT_FILE_FORMAT,
**kwargs):
arguments = []
try:
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'])
except:
pass
if file_format.lower() == u'jpeg' or file_format.lower() == u'jpg':
arguments.append(u'-quality')
arguments.append(u'85')
# Graphicsmagick 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(GM_PATH))
command.append(u'convert')
command.extend(unicode(GM_SETTINGS).split())
command.append(unicode(input_arg))
if arguments:
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()
if return_code != 0:
#Got an error from convert program
error_line = proc.stderr.readline()
if (CONVERTER_ERROR_STRING_NO_DECODER
in error_line) or (CONVERTER_ERROR_STARTS_WITH
in error_line):
#Try to determine from error message which class of error is it
raise UnknownFileFormat
else:
raise ConvertError(error_line)
