[英]How to change the colour of everything in a tkinter GUI at once
我有一些代码(如下所示),提示用户选择将GUI更改为哪种颜色。 但是我的问题是,它只会改变背景。 我想知道是否可以同时更改每个标签和按钮的背景,还是必须分别更改每个标签/按钮。
import tkinter
window = tkinter.Tk()
colour_frame = tkinter.Frame(window)
options_frame = tkinter.Frame(window)
def colours():
options_frame.pack_forget()
red.pack()
orange.pack()
back_button.pack()
colour_frame.pack()
def back():
options_frame.pack()
colour_frame.pack_forget()
def make_red():
window.configure(background="red")
def make_orange():
window.configure(background="orange")
colour_button = tkinter.Button(options_frame, text="Appearance", command=colours)
red = tkinter.Button(colour_frame, text="RED", command=make_red)
red.configure(bg = "red")
orange = tkinter.Button(colour_frame, text="ORANGE", command=make_orange)
orange.configure(bg = "orange")
back_button = tkinter.Button(colour_frame, text="Back", command=back)
window.mainloop()
您可以创建一个列表,其中包含要更改的所有小部件
myWidgets = [button1, label1, ... ] # List of widgets to change colour
for wid in myWidgets:
wid.configure(bg = newColour)
这是一次更改多个标签的背景色的示例代码。
import tkinter as tk
# Change all label backgrounds
def change_colour():
c = user.get() #Get the entered text of the Entry widget
for wid in widget_list:
wid.configure(bg = c)
# Create GUI
root = tk.Tk()
tk.Label(root, text='Enter a colour').pack()
user = tk.Entry(root)
user.pack()
label_frame = tk.Frame(root)
label_frame.pack()
btn = tk.Button(root, text='Change Colour', command = change_colour)
btn.pack()
widget_list = [user, btn] # Add defined widgets to list
#Dynamicly create labels for example
for x in range(10):
lbl = tk.Label(label_frame, text='Label '+str(x))
lbl.pack(side = tk.LEFT)
widget_list.append(lbl) #Add widget object to list
root.mainloop()
或者,如果您的框架已经包含要更改的所有小部件,则可以改用它。
parent_widget.winfo_children()
将返回一个列表,其中包含所有存储在父窗口小部件中的窗口小部件
def change_colour():
c = user.get()
for wid in label_frame.winfo_children():
wid.configure(bg = c)
尝试对某些GUI元素使用ttk。 ttk允许您为窗口小部件创建样式,并将样式立即更新为所有窗口小部件(至少对于具有相同样式的窗口小部件而言)。 您可能需要混合使用ttk和tkinter,但从长远来看,这应该会使事情变得容易一些。 这是我做的一个例子:
import tkinter as tk
from tkinter import ttk
root = tk.Tk()
# Creating a style for the buttons
color_style_button = ttk.Style()
color_style_button.configure("color.TButton", foreground="red")
def change_color(color):
# This function changes the style to all buttons using the "color.Button style"
if color == "red":
color_style_button.configure("color.TButton", foreground="red")
elif color == "blue":
color_style_button.configure("color.TButton", foreground="blue")
elif color == "green":
color_style_button.configure("color.TButton", foreground="green")
frame_a = ttk.Frame(root)
frame_a.pack()
red_button = ttk.Button(frame_a, text="Red", command=lambda: change_color("red"), style="color.TButton")
red_button.pack()
blue_button = ttk.Button(frame_a, text="Blue", command=lambda: change_color("blue"), style="color.TButton")
blue_button.pack()
green_button = ttk.Button(frame_a, text="Blue", command=lambda: change_color("green"), style="color.TButton")
green_button.pack()
root.mainloop()
我建议您查看该站点以了解有关ttk和样式的更多信息。
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