__license__ = 'GPL v3'
__copyright__ = '2013, Kovid Goyal <kovid at kovidgoyal.net>'


class Settings(object):

    def __init__(self, namespace):
        self.default_tab_stop = 720 / 20
        self.namespace = namespace

    def __call__(self, root):
        for dts in self.namespace.XPath('//w:defaultTabStop[@w:val]')(root):
            try:
                self.default_tab_stop = int(self.namespace.get(dts, 'w:val')) / 20
            except (ValueError, TypeError, AttributeError):
                pass