Christmas Bird Count history report system

As with the XHTML rendering, we display a hyphen if the effort is unknown. The logic that decides how much precision to display is Section 58, “statNumber(): Display a float without too much precision”. For styling, see Section 13.11.15, “FO_PH_CELL_ATTRS”.

# - - -   P a r t y H o u r s C e l l . f o

    def fo(self, s, **kw):
        '''Render self as XSL-FO.
        '''
        #-- 1
        if self._total is None:
            text = '-'
        else:
            text = statNumber(self._total)

        #-- 2
        # [ s  +:=  an open table-cell element styled by
        #           FO_PH_CELL_ATTRS and kw
        #   cell :=  that element ]
        cell = s.start('table-cell', FO_PH_CELL_ATTRS, kw)

        #-- 3
        # [ s  +:=  a block element containing text, right-aligned ]
        s.leaf('block', FO_ALIGN_RIGHT, text)

        #-- 4
        cell.end()