pdf.py 文件源码

def __init__(self, page_size=pagesizes.A4, shipping_labels_margin=(0, 0), posting_list_margin=(5 * mm, 5 * mm)):
        self.shipping_labels = []  # type: List[ShippingLabel]
        self._tracking_codes = set()

        self.page_size = page_size
        self.page_width = page_size[0]
        self.page_height = page_size[1]

        self.posting_list = None  # type: PostingList
        self.posting_list_margin = posting_list_margin

        self.shipping_labels_margin = shipping_labels_margin
        self.shipping_labels_width = self.page_width - (2 * shipping_labels_margin[0])
        self.shipping_labels_height = self.page_height - (2 * shipping_labels_margin[1])

        self.col_size = self.shipping_labels_width / 2
        self.row_size = self.shipping_labels_height / 2
        self._label_position = (
            (shipping_labels_margin[0], self.page_height / 2),
            (shipping_labels_margin[0] + self.col_size, self.page_height / 2),
            (shipping_labels_margin[0], shipping_labels_margin[1]),
            (shipping_labels_margin[0] + self.col_size, shipping_labels_margin[1]),
        )