python PIL在图像上绘制多行文本

Question

我尝试在图像的底部添加文本，实际上我已经完成了，但是如果我的文本较长，那么图像的宽度要从两侧切开，为简化起见，我希望文本在多行中长于图片宽度。这是我的代码：

FOREGROUND = (255, 255, 255)
WIDTH = 375
HEIGHT = 50
TEXT = 'Chyba najwyższy czas zadać to pytanie na śniadanie \n Chyba najwyższy czas zadać to pytanie na śniadanie'
font_path = '/Library/Fonts/Arial.ttf'
font = ImageFont.truetype(font_path, 14, encoding='unic')
text = TEXT.decode('utf-8')
(width, height) = font.getsize(text)

x = Image.open('media/converty/image.png')
y = ImageOps.expand(x,border=2,fill='white')
y = ImageOps.expand(y,border=30,fill='black')

w, h = y.size
bg = Image.new('RGBA', (w, 1000), "#000000")

W, H = bg.size
xo, yo = (W-w)/2, (H-h)/2
bg.paste(y, (xo, 0, xo+w, h))
draw = ImageDraw.Draw(bg)
draw.text(((w - width)/2, w), text, font=font, fill=FOREGROUND)


bg.show()
bg.save('media/converty/test.png')

Answer 1

您可以textwrap.wrap用来分解text成字符串列表，每个字符串最多为width字符：

import textwrap
lines = textwrap.wrap(text, width=40)
y_text = h
for line in lines:
    width, height = font.getsize(line)
    draw.text(((w - width) / 2, y_text), line, font=font, fill=FOREGROUND)
    y_text += height