get_tk_widget（）框架周围的边框

Question

我在tkinter中嵌入了两个matplotlib图的画布小部件。我想使用fig1_canvas.get_tk_widget().configure(highlightthickness=3)在这些框架周围绘制边框 fig2_canvas.get_tk_widget().configure(highlightthickness=3)

但这仅适用于两者之一。

我该如何解决？

import tkinter as tk
import matplotlib.pyplot as plt
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
import numpy as np


root = tk.Tk()

fig1, ax1 = plt.subplots(figsize=(2, 2))
fig2, ax2 = plt.subplots(figsize=(2, 2))
t = np.arange(0, 2*np.pi, 0.1)

ax1.plot(t, np.cos(t))
fig1.tight_layout()
fig1_canvas = FigureCanvasTkAgg(fig1, master=root)
fig1_canvas.get_tk_widget().configure(highlightthickness=3)

ax2.plot(t, np.sin(t))
fig2.tight_layout()
fig2_canvas = FigureCanvasTkAgg(fig2, master=root)
fig2_canvas.get_tk_widget().configure(highlightthickness=3)

frame1 = tk.Frame()
frame2 = tk.Frame()

tk.Label(frame1, text='hello').pack()
tk.Label(frame2, text='world').pack()

frame1.grid(row=0, column=0, rowspan=2)
fig1_canvas.get_tk_widget().grid(row=0, column=1)
fig2_canvas.get_tk_widget().grid(row=1, column=1)
frame2.grid(row=2, column=0, columnspan=2)

tk.mainloop()

Answer 1

如果您想在图形周围放置具有不同颜色的扁平边框，则可以将它们嵌入所需颜色的框架中，并使用padx和pady选项留出空白：

import tkinter as tk
import matplotlib.pyplot as plt
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
import numpy as np


root = tk.Tk()
# frames to create the black border:
fig_frame1 = tk.Frame(root, background='black', padx=2, pady=2)  
fig_frame2 = tk.Frame(root, background='black', padx=2, pady=2)

fig1, ax1 = plt.subplots(figsize=(2, 2))
fig2, ax2 = plt.subplots(figsize=(2, 2))
t = np.arange(0, 2*np.pi, 0.1)

ax1.plot(t, np.cos(t))
fig1.tight_layout()
fig1_canvas = FigureCanvasTkAgg(fig1, master=fig_frame1)  # set master of fig1_canvas to the border frame
fig1_canvas.get_tk_widget().pack(padx=1, pady=1)  # change padx and pady to choose the thickness of the border

ax2.plot(t, np.sin(t))
fig2.tight_layout()
fig2_canvas = FigureCanvasTkAgg(fig2, master=fig_frame2)
fig2_canvas.get_tk_widget().pack(padx=1, pady=1)

frame1 = tk.Frame()
frame2 = tk.Frame()

tk.Label(frame1, text='hello').pack()
tk.Label(frame2, text='world').pack()

frame1.grid(row=0, column=0, rowspan=2)
# put the border frames in the root window
fig_frame1.grid(row=0, column=1)
fig_frame2.grid(row=1, column=1)
frame2.grid(row=2, column=0, columnspan=2)