render.py 文件源码

def generate_pdf(card):
    """
    Make a PDF from a card

    :param card: dict from fetcher.py
    :return: Binary PDF buffer
    """
    from eclaire.base import SPECIAL_LABELS

    pdf = FPDF('L', 'mm', (62, 140))
    pdf.set_margins(2.8, 2.8, 2.8)
    pdf.set_auto_page_break(False, margin=0)

    pdf.add_page()

    font = pkg_resources.resource_filename('eclaire', 'font/Clairifont.ttf')
    pdf.add_font('Clairifont', fname=font, uni=True)
    pdf.set_font('Clairifont', size=48)

    pdf.multi_cell(0, 18, txt=card.name.upper(), align='L')

    qrcode = generate_qr_code(card.url)
    qrcode_file = mktemp(suffix='.png', prefix='trello_qr_')
    qrcode.save(qrcode_file)
    pdf.image(qrcode_file, 118, 35, 20, 20)
    os.unlink(qrcode_file)

    # May we never speak of this again.
    pdf.set_fill_color(255, 255, 255)
    pdf.rect(0, 55, 140, 20, 'F')

    pdf.set_font('Clairifont', '', 16)
    pdf.set_y(-4)
    labels = ', '.join([label.name for label in card.labels
                        if label.name not in SPECIAL_LABELS])
    pdf.multi_cell(0, 0, labels, 0, 'R')

    return pdf.output(dest='S')