def __getImageDocumentList(self):
"""
Extract the images from a document and return a list of Grain instances
"""
image_list=[]
#get the elements in the tags draw:image, where the image references are kept
tag_images = self.__parseContent.getElementsByTagName('draw:image')
#checks if an image element exists
if len(tag_images):
for item in tag_images:
name=None
if item.hasAttribute("xlink:href"):
path=item.getAttribute('xlink:href')
#checks if the path is empty
if "Pictures" in path:
#remove the file extension
name=path.replace("Pictures/","")
elif "ObjectReplacements" in path:
name=path.replace("./ObjectReplacements/","")
# removes the "./" of the path that could be "./ObjectReplacements/Object 2"
path = path.replace("./","")
# happens when it has an image from a website
elif re.match("^http://.+[\.jpg|\.png|\.gif]$",path):
continue
if name is not None:
#checks the image extension
f, e = os.path.splitext(name)
if e.lower() in ['.png','.gif','.jpg']:
# verifies if the image is already in the list
if not name in [image.getId() for image in image_list]:
parent = item.parentNode
nChild = parent.nextSibling
objGran = Grain(graintype='image')
if nChild:
text=[]
caption = ''
if nChild.nodeType is nChild.TEXT_NODE:
text.append(nChild.data)
for t in self.__getTextChildNodesImage(nChild,text):
if t is not None: caption+=t
objGran.setCaption(caption)
imagefile = StringIO(self.__zipFile.read(path))
objGran.setId(name)
objGran.setContent(imagefile)
image_list.append(objGran)
if image_list:
return image_list
else:
return []
outputXMLFolder = os.path.join(self.__pathFolder, "outputXMLFolder")
try:
converterObj = ExecuteConverter.ExecuteConverter()
converterObj.extractTables(pdfFile, outputXMLFolder)
tableListStr = converterObj.getTableList()
except Exception, e:
return tableList
i = 0
for table in tableListStr:
# generate table name
i += 1
tableId = "Table" + str(i) + ".html"
# finally, the Grain is created en added to the list
grainObj = Grain(graintype='table')
grainObj.setId(tableId)
grainObj.setContent(StringIO(table))
grainObj.setMimetype("text/html")
tableList.append(grainObj)
return tableList
### Public Methods ###
def getThumbnailsDocument(self):
"""
Extracts the metadata from pdf files using 'convert' tool
"""
os.system(
'evince-thumbnailer -s 128 "' +
os.path.join(self.__pathFolder, self.Document.getFilename()) +
outputXMLFolder = os.path.join(self.__pathFolder,"outputXMLFolder")
try:
converterObj = ExecuteConverter.ExecuteConverter()
converterObj.extractTables(pdfFile, outputXMLFolder)
tableListStr = converterObj.getTableList()
except Exception, e:
return tableList
i = 0
for table in tableListStr:
# generate table name
i+=1
tableId = "Table" + str(i) + ".html"
# finally, the Grain is created en added to the list
grainObj = Grain(graintype='table')
grainObj.setId(tableId)
grainObj.setContent(StringIO(table))
grainObj.setMimetype("text/html")
tableList.append(grainObj)
return tableList
### Public Methods ###
def getThumbnailsDocument(self):
"""
Extracts the metadata from pdf files using 'convert' tool
"""
os.system('evince-thumbnailer -s 128 "' + os.path.join(self.__pathFolder,self.Document.getFilename()) + '" ' + self.__pathFolder +'/thumbnail.png')
file_content = StringIO(open(self.__pathFolder +'/thumbnail.png').read())
os.remove(self.__pathFolder + '/thumbnail.png')
def __getTableDocumentList(self):
"""
Extract the tables from a document and return a list of Grain instances
"""
table_list=[]
# create an empty template
template_str=self.__createNewOOoDocument()
tables= self.__parseContent.getElementsByTagName('table:table')
stylesDoc= self.__parseContent.getElementsByTagName('style:style')
for t in tables:
styles = self.__getAttributesR(t)
table_name = t.getAttribute('table:name')
imgHrefs=[]
for img in t.getElementsByTagName("draw:image"):
if img.hasAttribute("xlink:href"):
path=img.getAttribute('xlink:href')
#checks if the path is empty
if "ObjectReplacements" in path:
# remove th "./" of the path that could be "./ObjectReplacements/Object 2"
imgHrefs.append(path.replace("./",""))
# happens when it has an image from a website
elif re.match("^http://.+[\.jpg|\.png|\.gif]$",path):
continue
else:
imgHrefs.append(path)
# extract legend
objGran = Grain(graintype='table')
leg=[]
p = t.previousSibling
n = t.nextSibling
if p is not None:
if p.hasChildNodes():
legenda = ''
for i in self.__getTextChildNodesTable(p,text=[]):
legenda+=i
leg.append(legenda)
else:
leg.append(self.__getNodeText(p))
if n is not None:
if n.hasChildNodes():
legenda = ''
for j in self.__getTextChildNodesTable(n,text=[]):
legenda+=j
leg.append(legenda)
else:
leg.append(self.__getNodeText(n))
# join the strings to make a single legend
caption = ' '.join([ i for i in leg if i is not None])
objGran.setCaption(caption)
# Creating an empty File
table_name = t.getAttribute('table:name')
new_table = StringIO()
new_table.write(template_str)
template_odt = zipfile.PyZipFile(new_table,'a')
doc = parseString(template_odt.read('content.xml'))
template_odt.close()
office_text=doc.getElementsByTagName('office:text')
office_text=office_text[0]
# copy the table node from a document to a new table grain
newTableNo=doc.importNode(t,True)
office_text.appendChild(newTableNo)
for sty in stylesDoc:
if (sty.getAttribute('style:name') in styles):
office_automatic_styles=doc.getElementsByTagName('office:automatic-styles')
office_automatic_styles=office_automatic_styles[0]
office_automatic_styles.appendChild(doc.importNode(sty,True))
if imgHrefs:
for image in imgHrefs:
template_odt = zipfile.PyZipFile(new_table,'a')
template_odt.writestr(str(image),self.__zipFile.read(image))
template_odt.close()
template_odt = zipfile.PyZipFile(new_table,'a')
template_odt.writestr('content.xml',doc.toxml().encode('utf-8'))
template_odt.close()
if table_name:
#objGran.setId(plone_utils.normalizeString(table_name))
objGran.setId(table_name)
objGran.setContent(new_table)
objGran.setMimetype("application/vnd.oasis.opendocument.text")
table_list.append(objGran)
if table_list:
return table_list
else:
return []
