share/extensions/embedimage.py

   1 #!/usr/bin/env python
   2 '''
   3 Copyright (C) 2005 Aaron Spike, aaron@ekips.org
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation; either version 2 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18 '''
  19
  20 import inkex, os, base64
  21
  22 class MyEffect(inkex.Effect):
  23     def __init__(self):
  24         inkex.Effect.__init__(self)
  25         self.OptionParser.add_option("-s", "--selectedonly",
  26             action="store", type="inkbool",
  27             dest="selectedonly", default=False,
  28             help="embed only selected images")
  29
  30     def effect(self):
  31         ctx = inkex.xml.xpath.Context.Context(self.document,processorNss=inkex.NSS)
  32
  33         # if slectedonly is enabled and there is a selection only embed selected
  34         # images. otherwise embed all images
  35         if (self.options.selectedonly):
  36             if (self.options.ids):
  37                 for id, node in self.selected.iteritems():
  38                     if node.tagName == 'image':
  39                         self.embedImage(node)
  40         else:
  41             path = '//image'
  42             for node in inkex.xml.xpath.Evaluate(path,self.document, context=ctx):
  43                 self.embedImage(node)
  44     def embedImage(self, node):
  45         xlink = node.attributes.getNamedItemNS(inkex.NSS[u'xlink'],'href')
  46         if (xlink.value[:4]!='data'):
  47             absref=node.attributes.getNamedItemNS(inkex.NSS[u'sodipodi'],'absref')
  48             if (os.path.isfile(absref.value)):
  49                 file = open(absref.value,"rb").read()
  50                 embed=True
  51                 if (file[:4]=='\x89PNG'):
  52                     type='image/png'
  53                 elif (file[:2]=='\xff\xd8'):
  54                     type='image/jpeg'
  55                 elif (file[:2]=='BM'):
  56                     type='image/bmp'
  57                 elif (file[:6]=='GIF87a' or file[:6]=='GIF89a'):
  58                     type='image/gif'
  59                 #ico files lack any magic... therefore we check the filename instead
  60                 elif(absref.value.endswith('.ico')):
  61                     type='image/x-icon' #official IANA registered MIME is 'image/vnd.microsoft.icon' tho
  62                 else:
  63                     embed=False
  64                 if (embed):
  65                     xlink.value = 'data:%s;base64,%s' % (type, base64.encodestring(file))
  66                     node.removeAttributeNS(inkex.NSS[u'sodipodi'],'absref')
  67                 else:
  68                     inkex.debug("%s is not of type image/png, image/jpeg, image/bmp, image/gif or image/x-icon" % absref.value)
  69             else:
  70                 inkex.debug("Sorry we could not locate %s" % absref.value)
  71 e = MyEffect()
  72 e.affect()