如何在python-tkinter的画布文本上放置轮廓? [英] How to put an outline on a canvas text on python -- tkinter?

问题描述

我在画布中央创建了一个白色文本，但我的背景非常丰富多彩，其中一部分颜色非常浅，所以我的句子的某些角落没有出现.我找不到任何设置边框或轮廓的选项.我能做什么?

I've created a white text in the center of my canvas, but my background is very colorful and one part of it is a very light color, so some corners of my sentence doesn't appear. I can't find any options to set borders or an outline. what could I do?

推荐答案

创建一个文本项，获取该项的边界框，使用该数据创建一个矩形，然后将文本提升到矩形上方.

Create a text item, get the bounding box of that item, use that data to create a rectangle, and raise the text above the rectangle.

import Tkinter as tk

root = tk.Tk()
canvas = tk.Canvas(root, background="white")
canvas.pack(fill="both", expand=True)

text_item = canvas.create_text(20, 20, anchor="w", text="Hello world!", fill="white")
bbox = canvas.bbox(text_item)
rect_item = canvas.create_rectangle(bbox, outline="red", fill="black")
canvas.tag_raise(text_item,rect_item)

root.mainloop()

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