Added docx writer related modules

ebook_converter/utils/fonts/sfnt/__init__.py

@@ -0,0 +1,80 @@
+#!/usr/bin/env python2
+# vim:fileencoding=UTF-8:ts=4:sw=4:sta:et:sts=4:fdm=marker:ai
+from __future__ import absolute_import, division, print_function, unicode_literals
+
+__license__   = 'GPL v3'
+__copyright__ = '2012, Kovid Goyal <kovid at kovidgoyal.net>'
+__docformat__ = 'restructuredtext en'
+
+from datetime import datetime, timedelta
+
+
+def align_block(raw, multiple=4, pad=b'\0'):
+    '''
+    Return raw with enough pad bytes append to ensure its length is a multiple
+    of 4.
+    '''
+    extra = len(raw) % multiple
+    if extra == 0:
+        return raw
+    return raw + pad*(multiple - extra)
+
+
+class UnknownTable(object):
+
+    def __init__(self, raw):
+        self.raw = raw
+
+    def __call__(self):
+        return self.raw
+
+    def __len__(self):
+        return len(self.raw)
+
+
+class DateTimeProperty(object):
+
+    def __init__(self, name):
+        self.name = name
+
+    def __get__(self, obj, type=None):
+        return datetime(1904, 1, 1) + timedelta(seconds=getattr(obj,
+            self.name))
+
+    def __set__(self, obj, val):
+        td = val - datetime(1904, 1, 1)
+        setattr(obj, self.name, int(td.total_seconds()))
+
+
+class FixedProperty(object):
+
+    def __init__(self, name):
+        self.name = name
+
+    def __get__(self, obj, type=None):
+        val = getattr(obj, self.name)
+        return val / 0x10000
+
+    def __set__(self, obj, val):
+        return int(round(val*(0x10000)))
+
+
+def max_power_of_two(x):
+    """
+Return the highest exponent of two, so that
+    (2 ** exponent) <= x
+    """
+    exponent = 0
+    while x:
+        x = x >> 1
+        exponent += 1
+    return max(exponent - 1, 0)
+
+
+def load_font(stream_or_path):
+    raw = stream_or_path
+    if hasattr(raw, 'read'):
+        raw = raw.read()
+    from calibre.utils.fonts.sfnt.container import Sfnt
+    return Sfnt(raw)
+