Tkinter：如何制作圆角文本小部件？
Tkinter: How to make a rounded corner text widget?
问题
如何创建圆角文本小部件？我想我想创建一个圆角 canvas 并用没有边框的文本框填充整个 canvas。
问题
当我尝试扩展 canvas 的高度和宽度时，创建圆角边框 canvas 的代码不起作用。换行变得不连续。
创建圆角的代码canvas取自
我的自定义宽度和高度的代码
def rounded_rect(canvas, x, y, w, h, c):
canvas.create_arc(x, y, x+2*c, y+2*c, start= 90, extent=90, style="arc")
canvas.create_arc(x+w-2*c, y+h-2*c, x+w, y+h, start=270, extent=90, style="arc")
canvas.create_arc(x+w-2*c, y, x+w, y+2*c, start= 0, extent=90, style="arc")
canvas.create_arc(x, y+h-2*c, x+2*c, y+h, start=180, extent=90, style="arc")
canvas.create_line(x+c, y, x+w-c, y )
canvas.create_line(x+c, y+h, x+w-c, y+h )
canvas.create_line(x, y+c, x, y+h-c)
canvas.create_line(x+w, y+c, x+w, y+h-c)
import tkinter
root = tkinter.Tk()
canvas = tkinter.Canvas(root)
canvas.grid(row=0,column=0)
# The width and height has been changed from the original solution
rounded_rect(canvas, 10, 10, 330, 290, 10)
root.mainloop()
输出
您的 canvas 根本不够大。使用
使其变大
canvas = tkinter.Canvas(root, width=500, height=500)
或者使用
使其随根 window 调整大小
canvas = tkinter.Canvas(root)
canvas.grid(row=0,column=0, sticky='NSEW')
root.rowconfigure(0, weight=1)
root.columnconfigure(0, weight=1)
一种解决方案是使用具有自定义样式的 ttk 框架，该框架使用图像作为角。
以下示例改编自我在 2007 年写的 tcl/tk 解决方案。它使用一种奇怪的颜色作为焦点，并且需要白色背景，但您可以创建自己的图像来替换那个用于此解决方案（或编辑此示例中的图像1）
# adapted from http://wiki.tcl.tk/%0920152
import tkinter as tk
from tkinter import ttk
focusBorderImageData = '''
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Ry/99NIz//oGrZpUUEAAOw==
'''
borderImageData = '''
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'''
root = tk.Tk()
style = ttk.Style()
borderImage = tk.PhotoImage("borderImage", data=borderImageData)
focusBorderImage = tk.PhotoImage("focusBorderImage", data=focusBorderImageData)
style.element_create("RoundedFrame",
"image", borderImage,
("focus", focusBorderImage),
border=16, sticky="nsew")
style.layout("RoundedFrame",
[("RoundedFrame", {"sticky": "nsew"})])
frame1 = ttk.Frame(style="RoundedFrame", padding=10)
text1 = tk.Text(frame1, borderwidth=0, highlightthickness=0, wrap="word",
width=40, height=4)
text1.pack(fill="both", expand=True)
text1.bind("<FocusIn>", lambda event: frame1.state(["focus"]))
text1.bind("<FocusOut>", lambda event: frame1.state(["!focus"]))
text1.insert("end", "This widget has the focus")
frame2 = ttk.Frame(style="RoundedFrame", padding=10)
text2 = tk.Text(frame2, borderwidth=0, highlightthickness=0, wrap="word",
width=40, height=4)
text2.pack(fill="both", expand=True)
text2.bind("<FocusIn>", lambda event: frame2.state(["focus"]))
text2.bind("<FocusOut>", lambda event: frame2.state(["!focus"]))
text2.insert("end", "This widget does not have the focus")
root.configure(background="white")
frame1.pack(side="top", fill="both", expand=True, padx=20, pady=20)
frame2.pack(side="top", fill="both", expand=True, padx=20, pady=20)
frame1.focus_set()
root.mainloop()
1图像数据是base64编码的gif。如果您对数据进行解码并将其保存为 .gif 文件，则可以对其进行编辑以使用您想要的任何颜色。
我 运行 除了主要的 window 之外也进入了这个问题。我正在为某人制作一个便签应用程序，他们希望 window 的角是圆的。
我在 4 个角上有 4 个画布，带有基于角的弧形图像。然后我将这些图像的颜色设为 t运行sparent，效果出奇的好所以我想分享它。
代码如下：
from tkinter import *
from PIL import Image,ImageTk
def drag(event,win):
x = win.winfo_pointerx() - win.offsetx
y = win.winfo_pointery() - win.offsety
win.geometry('+{x}+{y}'.format(x=x,y=y))
def click(event,win):
win.offsetx = event.x
win.offsety = event.y
root = Tk()
root.resizable(False,False)
root.geometry("610x260")
img = ImageTk.PhotoImage( Image.open("src/ARC.png").resize((150,150)), Image.ANTIALIAS )
img2 = ImageTk.PhotoImage( Image.open("src/ARC 2.png").resize((150,150)), Image.ANTIALIAS )
img3 = ImageTk.PhotoImage( Image.open("src/ARC 3.png").resize((150,150)), Image.ANTIALIAS )
img4 = ImageTk.PhotoImage( Image.open("src/ARC 4.png").resize((150,150)), Image.ANTIALIAS )
fr = Frame(root, bg = "yellow", bd = 0)
fr.pack( expand = True, fill = 'both')
canvas = Canvas(fr, bg = "yellow", width = 60, height = 60, bd=0, highlightthickness=0, relief='ridge')
canvas.create_image(-2,-2, image = img, anchor = "nw")
canvas2 = Canvas(fr, bg = "yellow", width = 60, height = 60, bd=0, highlightthickness=0, relief='ridge')
canvas2.create_image(62,-2, image = img2, anchor = "ne")
canvas3 = Canvas(fr, bg = "yellow", width = 60, height = 60, bd=0, highlightthickness=0, relief='ridge')
canvas3.create_image(-2,62, image = img3, anchor = "sw")
canvas4 = Canvas(fr, bg = "yellow", width = 60, height = 60, bd=0, highlightthickness=0, relief='ridge')
canvas4.create_image(62,62, image = img4, anchor = "se")
Grid.columnconfigure(fr, 0, weight = 1)
Grid.columnconfigure(fr, 1, weight = 1)
Grid.rowconfigure(fr, 1, weight = 1)
canvas.grid( row = 0, column = 0, sticky = 'NW' )
canvas2.grid( row = 0, column = 1, sticky = 'NE' )
canvas3.grid(row = 1, column = 0, sticky = 'SW' )
canvas4.grid(row = 1, column = 1, sticky = 'SE' )
root.overrideredirect(True)
root.wm_attributes('-transparentcolor', "#222222")
root.bind('<Button-1>', lambda e, root = root: click(e,root))
root.bind('<B1-Motion>', lambda e, root = root: drag(e,root))
root.mainloop()
现在您可能会根据 window 中的需要更改画布的行和列，但这是一个好的开始。
问题
如何创建圆角文本小部件？我想我想创建一个圆角 canvas 并用没有边框的文本框填充整个 canvas。
问题
当我尝试扩展 canvas 的高度和宽度时，创建圆角边框 canvas 的代码不起作用。换行变得不连续。
创建圆角的代码canvas取自
我的自定义宽度和高度的代码
def rounded_rect(canvas, x, y, w, h, c):
canvas.create_arc(x, y, x+2*c, y+2*c, start= 90, extent=90, style="arc")
canvas.create_arc(x+w-2*c, y+h-2*c, x+w, y+h, start=270, extent=90, style="arc")
canvas.create_arc(x+w-2*c, y, x+w, y+2*c, start= 0, extent=90, style="arc")
canvas.create_arc(x, y+h-2*c, x+2*c, y+h, start=180, extent=90, style="arc")
canvas.create_line(x+c, y, x+w-c, y )
canvas.create_line(x+c, y+h, x+w-c, y+h )
canvas.create_line(x, y+c, x, y+h-c)
canvas.create_line(x+w, y+c, x+w, y+h-c)
import tkinter
root = tkinter.Tk()
canvas = tkinter.Canvas(root)
canvas.grid(row=0,column=0)
# The width and height has been changed from the original solution
rounded_rect(canvas, 10, 10, 330, 290, 10)
root.mainloop()
输出
您的 canvas 根本不够大。使用
使其变大canvas = tkinter.Canvas(root, width=500, height=500)
或者使用
使其随根 window 调整大小canvas = tkinter.Canvas(root)
canvas.grid(row=0,column=0, sticky='NSEW')
root.rowconfigure(0, weight=1)
root.columnconfigure(0, weight=1)
一种解决方案是使用具有自定义样式的 ttk 框架，该框架使用图像作为角。
以下示例改编自我在 2007 年写的 tcl/tk 解决方案。它使用一种奇怪的颜色作为焦点，并且需要白色背景，但您可以创建自己的图像来替换那个用于此解决方案（或编辑此示例中的图像1）
# adapted from http://wiki.tcl.tk/%0920152
import tkinter as tk
from tkinter import ttk
focusBorderImageData = '''
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Ry/99NIz//oGrZpUUEAAOw==
'''
borderImageData = '''
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'''
root = tk.Tk()
style = ttk.Style()
borderImage = tk.PhotoImage("borderImage", data=borderImageData)
focusBorderImage = tk.PhotoImage("focusBorderImage", data=focusBorderImageData)
style.element_create("RoundedFrame",
"image", borderImage,
("focus", focusBorderImage),
border=16, sticky="nsew")
style.layout("RoundedFrame",
[("RoundedFrame", {"sticky": "nsew"})])
frame1 = ttk.Frame(style="RoundedFrame", padding=10)
text1 = tk.Text(frame1, borderwidth=0, highlightthickness=0, wrap="word",
width=40, height=4)
text1.pack(fill="both", expand=True)
text1.bind("<FocusIn>", lambda event: frame1.state(["focus"]))
text1.bind("<FocusOut>", lambda event: frame1.state(["!focus"]))
text1.insert("end", "This widget has the focus")
frame2 = ttk.Frame(style="RoundedFrame", padding=10)
text2 = tk.Text(frame2, borderwidth=0, highlightthickness=0, wrap="word",
width=40, height=4)
text2.pack(fill="both", expand=True)
text2.bind("<FocusIn>", lambda event: frame2.state(["focus"]))
text2.bind("<FocusOut>", lambda event: frame2.state(["!focus"]))
text2.insert("end", "This widget does not have the focus")
root.configure(background="white")
frame1.pack(side="top", fill="both", expand=True, padx=20, pady=20)
frame2.pack(side="top", fill="both", expand=True, padx=20, pady=20)
frame1.focus_set()
root.mainloop()
1图像数据是base64编码的gif。如果您对数据进行解码并将其保存为 .gif 文件，则可以对其进行编辑以使用您想要的任何颜色。
我 运行 除了主要的 window 之外也进入了这个问题。我正在为某人制作一个便签应用程序，他们希望 window 的角是圆的。
我在 4 个角上有 4 个画布，带有基于角的弧形图像。然后我将这些图像的颜色设为 t运行sparent，效果出奇的好所以我想分享它。
代码如下：
from tkinter import *
from PIL import Image,ImageTk
def drag(event,win):
x = win.winfo_pointerx() - win.offsetx
y = win.winfo_pointery() - win.offsety
win.geometry('+{x}+{y}'.format(x=x,y=y))
def click(event,win):
win.offsetx = event.x
win.offsety = event.y
root = Tk()
root.resizable(False,False)
root.geometry("610x260")
img = ImageTk.PhotoImage( Image.open("src/ARC.png").resize((150,150)), Image.ANTIALIAS )
img2 = ImageTk.PhotoImage( Image.open("src/ARC 2.png").resize((150,150)), Image.ANTIALIAS )
img3 = ImageTk.PhotoImage( Image.open("src/ARC 3.png").resize((150,150)), Image.ANTIALIAS )
img4 = ImageTk.PhotoImage( Image.open("src/ARC 4.png").resize((150,150)), Image.ANTIALIAS )
fr = Frame(root, bg = "yellow", bd = 0)
fr.pack( expand = True, fill = 'both')
canvas = Canvas(fr, bg = "yellow", width = 60, height = 60, bd=0, highlightthickness=0, relief='ridge')
canvas.create_image(-2,-2, image = img, anchor = "nw")
canvas2 = Canvas(fr, bg = "yellow", width = 60, height = 60, bd=0, highlightthickness=0, relief='ridge')
canvas2.create_image(62,-2, image = img2, anchor = "ne")
canvas3 = Canvas(fr, bg = "yellow", width = 60, height = 60, bd=0, highlightthickness=0, relief='ridge')
canvas3.create_image(-2,62, image = img3, anchor = "sw")
canvas4 = Canvas(fr, bg = "yellow", width = 60, height = 60, bd=0, highlightthickness=0, relief='ridge')
canvas4.create_image(62,62, image = img4, anchor = "se")
Grid.columnconfigure(fr, 0, weight = 1)
Grid.columnconfigure(fr, 1, weight = 1)
Grid.rowconfigure(fr, 1, weight = 1)
canvas.grid( row = 0, column = 0, sticky = 'NW' )
canvas2.grid( row = 0, column = 1, sticky = 'NE' )
canvas3.grid(row = 1, column = 0, sticky = 'SW' )
canvas4.grid(row = 1, column = 1, sticky = 'SE' )
root.overrideredirect(True)
root.wm_attributes('-transparentcolor', "#222222")
root.bind('<Button-1>', lambda e, root = root: click(e,root))
root.bind('<B1-Motion>', lambda e, root = root: drag(e,root))
root.mainloop()
现在您可能会根据 window 中的需要更改画布的行和列，但这是一个好的开始。