1. 判斷是否微信
2. 給圖片加文字 （參考了這篇文章并做了一些修改：https://www.jb51.net/article/175078.htm）
# image_text.py
"""
給圖片（如二維碼）添上文字
Usage::
>>> from xxx import deco_image
>>> deco_image(image_path, text) # 替換舊圖片
>>> deco_image(image_path, text, new_path, color='red') # 保留舊圖片并指定文字顏色
"""
from pathlib import Path
from typing import Optional, Tuple, Union
from PIL import Image, ImageDraw, ImageFont # pip install pillow
TIP = "請用微信掃碼支付\n或分享到微信中打開"
# 獲取圖片寬度
def get_img_width(fname) -> int:
return Image.open(fname).size[0]
# 獲取圖片高度
def get_img_height(fname) -> int:
return Image.open(fname).size[1]
# 給圖片加文字
# 生成blank_img空白圖片，加上文字之后生成新圖片或覆蓋舊圖, 寬度為origin_img原始圖片的寬度
MARGIN_LEFT, MARGIN_TOP = 50, 15
FONT_SIZE = 22
FONT_COLOR = "red"
def gen_text_img(
origin_img: Union[Path, str],
text: str,
img_path=None,
color=FONT_COLOR,
font_size: int = FONT_SIZE,
margin_left: int = MARGIN_LEFT,
margin_top: int = MARGIN_TOP,
blank_img=None,
font_path: Optional[str] = None,
show_img: bool = False,
) -> Union[Path, str]:
width = get_img_width(origin_img)
if blank_img is None:
blank_img = Path(f"/tmp/blank-{width}.png")
elif isinstance(blank_img, str):
blank_img = Path(blank_img)
if not blank_img.exists():
Image.new("RGB", (width, 70), (255, 255, 255)).save(blank_img)
im = Image.open(blank_img)
draw = ImageDraw.Draw(im)
if font_path is None:
# font_path = r"C:\Windows\Fonts\simsun.ttc"
# font_path = "/System/Library/Fonts/Supplemental/Songti.ttc"
font_path = "/usr/share/fonts/truetype/windows-font/Songti.ttc"
fnt = ImageFont.truetype(font_path, font_size)
draw.text((margin_left, margin_top), text, fill=color, font=fnt)
if img_path is None:
img_path = Path(origin_img)
img_path = img_path.with_name(f"{img_path.stem}-{len(text)}{img_path.suffix}")
im.save(img_path)
if show_img:
im.show()
return img_path
# 拼接圖片，把上面生成的文字圖片拼接到原圖上面
# 生成一張寬度一致，高度為兩張圖片之和的空白長圖
# 分別打開圖片進行粘貼到空白長圖里面
def join_imgs(text_img, origin_img, new_path=None) -> None:
w = get_img_width(text_img)
fh = get_img_height(text_img)
oh = get_img_height(origin_img)
blank_long_img = Image.new("RGBA", (w, fh + oh)) # 空白長圖
font_img = Image.open(text_img).resize((w, fh), Image.ANTIALIAS)
blank_long_img.paste(font_img, (0, 0))
img1 = Image.open(origin_img).resize((w, oh), Image.ANTIALIAS)
blank_long_img.paste(img1, (0, fh))
if new_path is None:
new_path = origin_img
blank_long_img.save(new_path)
blank_long_img.show()
def deco_image(
fpath: Union[Path, str], # 圖片路徑
text: str = TIP, # 要添加的文字
new_path: Union[Path, str, None] = None, # 新圖片要保存的路徑（默認覆蓋原圖）
color: Union[str, Tuple[int, int, int]] = FONT_COLOR, # 文字顏色
font_size: int = FONT_SIZE, # 文字高度
margin_left: int = MARGIN_LEFT,
margin_top: int = MARGIN_TOP,
) -> None:
text_img = gen_text_img(
fpath,
text,
color=color,
font_size=font_size,
margin_left=margin_left,
margin_top=margin_top,
)
join_imgs(text_img, fpath)
3. 如果系統缺字體，那么需要去下載
4. 調起支付或生成圖片
from pathlib import Path
from hashlib import md5
import qrcode # pip install qrcode
from sanic import Blueprint
from sanic.log import logger
from sanic.request import Request
from sanic.response import json
from .models import Order
from .image_text import deco_image
from .toolbox import UserAgent
from .utils import async_http_post, get_host
from .consts import URL_PREFIX, WX_PAY_URL
bp = Blueprint("epay", url_prefix=URL_PREFIX)
async def get_qf_mch(community):
pass
@bp.route("/pay-link", methods=["POST"])
async def pay_link(request: Request):
requires, data = ["bills", "total", "next"], request.json
logger.info(f"{request.url = } ; {request.json = }")
# 已經1分鐘內生成過對應訂單的，直接去支付
content = request.body + f"{datetime.now():%y%m%d%H%M%S}".encode()
body = md5(content).hexdigest()
if not (order := await Order.filter(body=body).first()):
order = await new_pay_order(origin, data, request, body)
mchid, mch_name = await get_qf_mch(order.community)
if mchid:
host = get_host(request.headers)
if not UserAgent(request=request).is_wechat:
# 故判斷當前是否在微信里，如果不是就直接生成二維碼
frontend_url = data["next"]
fpath = "payit/" + md5(frontend_url.encode()).hexdigest() + ".png"
if not (p := BASE_DIR / "media" / fpath).parent.exists():
p.parent.mkdir(parents=True)
qrcode.make(frontend_url).save(p)
deco_image(p)
img_url = host + URL_PREFIX + "/media/" + fpath
return json({"payUrl": img_url})
return json(qf_pay_it(mchid, mch_name, order, host=host))
url = WX_PAY_URL
if not (request_data := order.post_data).get("mch"):
request_data.update(mch=1) # 未配置支付的,先用1
res = await async_http_post(url, request_data)
try:
res_json = res.json()
except Exception as e:
logger.error(f"{e = }; {url = }; {order.post_data=}; {res.content = }")
return json(res_json)
到此這篇關于用Python給二維碼圖片添加提示文字的文章就介紹到這了,更多相關Python給二維碼添加文字內容請搜索腳本之家以前的文章或繼續瀏覽下面的相關文章希望大家以后多多支持腳本之家！
