def _convert(self, format, **kw):
"""File is only convertable if it is an image.
Only Image conversion, original format and text formats are allowed.
However this document can migrate to another portal_type which support
others conversions.
"""
content_type = self.getContentType() or ''
if (format in VALID_IMAGE_FORMAT_LIST + (None, "")) and \
content_type.startswith("image/"):
# The file should behave like it is an Image for convert
# the content to target format.
from Products.ERP5Type.Document import newTempImage
return newTempImage(self,
self.getId(),
data=self.getData(),
content_type=content_type,
filename=self.getFilename())._convert(
format, **kw)
elif format in (None, ""):
# No conversion is asked,
# we can return safely the file content itself
return content_type, self.getData()
elif format in VALID_TEXT_FORMAT_LIST:
# This is acceptable to return empty string
# for a File we can not convert
return 'text/plain', ''
raise NotImplementedError
def getPageImage(self, page, format, resolution, quality):
"""
Return an instance of newTempImage containing the pape page of
the pdf file
width, height: attributes in pixel (px)
format: jpg, png, etc...
resolution: resolution of produced image for exemple 600
quality: quality of produced image for exemple 200 raisonable quality
more hight is quality more time it takes to be gererated
"""
from Products.ERP5Type.Document import newTempPDFDocument
from Products.ERP5Type.Document import newTempImage
temp_pdf_document_name = "tmp%s.pdf" % str(
random.random()).split('.')[-1]
temp_pdf_document = newTempPDFDocument(self, temp_pdf_document_name)
temp_pdf_document.setData(self.getData())
display = 'xlarge'
mime, image_data = temp_pdf_document.convert(format=format,
frame=page,
resolution=resolution,
quality=quality,
display=display)
page_image = None
if image_data is not None:
page_image = newTempImage(self, "page_%s" % page)
page_image.setData(page_image)
return page_image
def _convert(self, format, **kw):
"""File is only convertable if it is an image.
Only Image conversion, original format and text formats are allowed.
However this document can migrate to another portal_type which support
others conversions.
"""
content_type = self.getContentType() or ''
if (format in VALID_IMAGE_FORMAT_LIST + (None, "")) and \
content_type.startswith("image/"):
# The file should behave like it is an Image for convert
# the content to target format.
from Products.ERP5Type.Document import newTempImage
return newTempImage(self, self.getId(),
data=self.getData(),
content_type=content_type,
filename=self.getFilename())._convert(format, **kw)
elif format in (None, ""):
# No conversion is asked,
# we can return safely the file content itself
return content_type, self.getData()
elif format in VALID_TEXT_FORMAT_LIST:
# This is acceptable to return empty string
# for a File we can not convert
return 'text/plain', ''
raise NotImplementedError
def getPageImage(self, page, format, resolution, quality):
"""
Return an instance of newTempImage containing the pape page of
the pdf file
width, height: attributes in pixel (px)
format: jpg, png, etc...
resolution: resolution of produced image for exemple 600
quality: quality of produced image for exemple 200 raisonable quality
more hight is quality more time it takes to be gererated
"""
from Products.ERP5Type.Document import newTempPDFDocument
from Products.ERP5Type.Document import newTempImage
temp_pdf_document_name = "tmp%s.pdf" % str(random.random()).split('.')[-1]
temp_pdf_document = newTempPDFDocument(self, temp_pdf_document_name)
temp_pdf_document.setData(self.getData())
display = 'xlarge'
mime, image_data = temp_pdf_document.convert(format = format,
frame = page,
resolution = resolution,
quality = quality,
display = display)
page_image = None
if image_data is not None:
page_image = newTempImage(self, "page_%s" % page)
page_image.setData(page_image)
return page_image
def getERP5FormImage(self, page):
"""
Returns the background image for a given page
"""
from Products.ERP5Type.Document import newTempImage
import_pdf_file = self.getDefaultPdfFormValue()
# depend on preferences, best xlargeheight = 1131
mime, image_data = import_pdf_file.convert(
format="jpg", frame=page, resolution=self.getResolution(), quality=600, display="xlarge"
)
if image_data is None:
return
page_image = newTempImage(self, "page_%s" % page)
page_image.setData(image_data)
self.REQUEST.RESPONSE.setHeader("Content-Type", mime)
return page_image
def getERP5FormImage(self, page):
"""
Returns the background image for a given page
"""
from Products.ERP5Type.Document import newTempImage
import_pdf_file = self.getDefaultPdfFormValue()
#depend on preferences, best xlargeheight = 1131
mime, image_data = import_pdf_file.convert(format = 'jpg',
frame = page,
resolution = self.getResolution(),
quality = 600,
display = 'xlarge')
if image_data is None:
return
page_image = newTempImage(self, "page_%s" % page)
page_image.setData(image_data)
self.REQUEST.RESPONSE.setHeader('Content-Type', mime)
return page_image
