def getSizeFromImageDisplay(self, image_display):
"""
Return the size for this image display, or None if this image display name
is not known. If the preference is not set, (0, 0) is returned.
"""
# identical parameter can be considered as a hack, in order not to
# resize the image to prevent text distorsion when using OCR.
# A cleaner API is required.
if image_display == 'identical':
return (self.getWidth(), self.getHeight())
else:
return Image.getSizeFromImageDisplay(self, image_display)
def getSizeFromImageDisplay(self, image_display):
"""
Return the size for this image display, or None if this image display name
is not known. If the preference is not set, (0, 0) is returned.
"""
# identical parameter can be considered as a hack, in order not to
# resize the image to prevent text distorsion when using OCR.
# A cleaner API is required.
if image_display == 'identical':
return (self.getWidth(), self.getHeight())
else:
return Image.getSizeFromImageDisplay(self, image_display)
def _convert(self, format, **kw):
"""
Implementation of conversion for PDF files
"""
if format == 'html':
try:
return self.getConversion(format=format)
except KeyError:
mime = 'text/html'
data = self._convertToHTML()
self.setConversion(data, mime=mime, format=format)
return (mime, data)
elif format in ('txt', 'text'):
try:
return self.getConversion(format='txt')
except KeyError:
mime = 'text/plain'
data = self._convertToText()
self.setConversion(data, mime=mime, format='txt')
return (mime, data)
elif format in ('djvu', 'DJVU'):
try:
return self.getConversion(format='djvu')
except KeyError:
mime = 'image/vnd.djvu'
data = self._convertToDJVU()
self.setConversion(data, mime=mime, format='djvu')
return (mime, data)
elif format in (
'',
None,
) or format == 'pdf':
# return original content
return self.getContentType(), self.getData()
else:
if kw.get('frame', None) is None:
# when converting to image from PDF we care for first page only
# this will make sure that only first page is used and not whole content of
# PDF file read & converted which is a performance issue
kw['frame'] = 0
return Image._convert(self, format, **kw)
def _convert(self, format, **kw):
"""
Implementation of conversion for PDF files
"""
if format == 'html':
try:
return self.getConversion(format=format)
except KeyError:
mime = 'text/html'
data = self._convertToHTML()
self.setConversion(data, mime=mime, format=format)
return (mime, data)
elif format in ('txt', 'text'):
try:
return self.getConversion(format='txt')
except KeyError:
mime = 'text/plain'
data = self._convertToText()
self.setConversion(data, mime=mime, format='txt')
return (mime, data)
elif format in ('djvu', 'DJVU'):
try:
return self.getConversion(format='djvu')
except KeyError:
mime = 'image/vnd.djvu'
data = self._convertToDJVU()
self.setConversion(data, mime=mime, format='djvu')
return (mime, data)
elif format in ('', None,) or format=='pdf':
# return original content
return self.getContentType(), self.getData()
else:
if kw.get('frame', None) is None:
# when converting to image from PDF we care for first page only
# this will make sure that only first page is used and not whole content of
# PDF file read & converted which is a performance issue
kw['frame'] = 0
return Image._convert(self, format, **kw)
def __init__(self, *args, **kw):
Folder.__init__(self, *args, **kw)
Image.__init__(self, *args, **kw)
def _setFile(self, data, precondition=None):
try:
del self._content_information
except (AttributeError, KeyError):
pass
Image._setFile(self, data, precondition=precondition)
def __init__(self, *args, **kw): Folder.__init__(self, *args, **kw) Image.__init__(self, *args, **kw)
def _setFile(self, data, precondition=None):
try:
del self._content_information
except (AttributeError, KeyError):
pass
Image._setFile(self, data, precondition=precondition)
def manage_beforeDelete(self, item, container):
Image.manage_beforeDelete(self, item, container)
def manage_afterClone(self, item):
XMLObject.manage_afterClone(self, item)
Image.manage_afterClone(self, item)
def manage_afterAdd(self, item, container):
XMLObject.manage_afterAdd(self, item, container)
Image.manage_afterAdd(self, item, container)
def __init__(self, id, **kw):
Image.__init__(self, id, **kw)
XMLObject.__init__(self, id, **kw)
def manage_beforeDelete(self, item, container):
Image.manage_beforeDelete(self, item, container)
def manage_afterAdd(self, item, container):
XMLObject.manage_afterAdd(self, item, container)
Image.manage_afterAdd(self, item, container)
def manage_afterClone(self, item):
XMLObject.manage_afterClone(self, item)
Image.manage_afterClone(self, item)
def __init__(self, id, **kw):
Image.__init__(self, id, **kw)
XMLObject.__init__(self, id, **kw)
