Julian Popov..

12

這是我自己的解決方案:

from base64 import b64encode

from reportlab.lib import units

from reportlab.graphics import renderPM

from reportlab.graphics.barcode import createBarcodeDrawing

from reportlab.graphics.shapes import Drawing

def get_barcode(value, width, barWidth = 0.05 * units.inch, fontSize = 30, humanReadable = True):

barcode = createBarcodeDrawing('Code128', value = value, barWidth = barWidth, fontSize = fontSize, humanReadable = humanReadable)

drawing_width = width

barcode_scale = drawing_width / barcode.width

drawing_height = barcode.height * barcode_scale

drawing = Drawing(drawing_width, drawing_height)

drawing.scale(barcode_scale, barcode_scale)

drawing.add(barcode, name='barcode')

return drawing

def get_image():

barcode = get_barcode(value = '01234567890', width = 600)

data = b64encode(renderPM.drawToString(barcode, fmt = 'PNG'))

print ''.format(data)

您還可以將條形碼旋轉90°:

def get_barcode_rotated(value, width, barWidth = 0.05 * units.inch, fontSize = 30, humanReadable = True):

barcode = createBarcodeDrawing('Code128', value = value, barWidth = barWidth, fontSize = fontSize, humanReadable = humanReadable)

drawing_width = width

barcode_scale = drawing_width / barcode.width

drawing_height = barcode.height * barcode_scale

drawing = Drawing(drawing_width, drawing_height)

drawing.scale(barcode_scale, barcode_scale)

drawing.add(barcode, name='barcode')

drawing_rotated = Drawing(drawing_height, drawing_width)

drawing_rotated.rotate(90)

drawing_rotated.translate(0, -drawing_height)

drawing_rotated.add(drawing, name='drawing')

return drawing_rotated

這是一個示例結果:

總結

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