def __init__(self, excel_report, name, template_dir=None, template=None, graphs_per_row=1):
            name = _translate_sheet_name(name)
            self.excel_report = excel_report
            self.name = name
            self.items = []
            self.top = 0
            self.left = 0
            self.position_in_row = 1
            self.curline_height = 0
            if template_dir is None:
                template_dir = excel_report.template_dir
            if template is None:
                template = excel_report.template
            AbstractReportSheet.__init__(self, template_dir, template, graphs_per_row)