Create helper to convert EMU to pixel

Author: aarbouin

mammoth/docx/body_xml.py

@@ -10,6 +10,8 @@
 from .styles_xml import Styles
 from .uris import replace_fragment, uri_to_zip_entry_name
 
+EMU_TO_PIXEL = 1 / 9525
+
 if sys.version_info >= (3, ):
     unichr = chr
 
@@ -395,6 +397,9 @@ def inline(element):
             .find_children("a:blip")
         return _read_blips(blips, alt_text)
 
+    def _emu_to_pixel(emu):
+        return round(int(emu) * EMU_TO_PIXEL)
+
     def _read_blips(blips, alt_text):
         return _ReadResult.concat(lists.map(lambda blip: _read_blip(blip, alt_text), blips))