如何在 tkinter 中左对齐按钮？

Question

以下代码

root = tk.Tk()
frame = ttk.Frame(root, padding=10)
frame.grid()

# Browse
tk.Text(frame, state="disabled", height=1).grid(column=0, row=0, columnspan=3, sticky="W", pady=5, ipadx=2, ipady=2)
ttk.Button(frame, text="Browse", command=None).grid(column=3, row=0, sticky="E")

# Selected files
tk.Text(frame, state="disabled").grid(column=0, row=1, columnspan=4, sticky="EW", pady=10)

# Options
ttk.Button(frame, text="SELECT", command=None).grid(column=0, row=2, sticky="W")
ttk.Button(frame, text="DELETE", command=None).grid(column=1, row=2, sticky="W")
ttk.Button(frame, text="Merge", command=None).grid(column=2, row=2, sticky="W")

ttk.Button(frame, text="Close", command=root.destroy).grid(column=3, row=2, sticky="E")

root.mainloop()

产生这个，

但我希望 DELETE 和 MERGE 按钮左对齐，以便它们与 SELECT 按钮一起使用。我怎样才能做到这一点？

Answer 1

将按钮放入新框架中，此框架放入原始框架中

buttons_frame = ttk.Frame(frame)
buttons_frame.grid(column=0, row=2, sticky="W")

ttk.Button(buttons_frame, text="SELECT", command=None).grid(column=0, row=2, sticky="W")
ttk.Button(buttons_frame, text="DELETE", command=None).grid(column=1, row=2, sticky="W")
ttk.Button(buttons_frame, text="Merge", command=None).grid(column=2, row=2, sticky="W")

顺便说一句：

在buttons_frame 中，您甚至可以使用.pack(side='left') 而不是grid()

---

完整代码：

import tkinter as tk
import tkinter.ttk as ttk

root = tk.Tk()
frame = ttk.Frame(root, padding=10)
frame.grid()

# Browse
tk.Text(frame, state="disabled", height=1).grid(column=0, row=0, columnspan=3, sticky="W", pady=5, ipadx=2, ipady=2)
ttk.Button(frame, text="Browse", command=None).grid(column=3, row=0, sticky="E")

# Selected files
tk.Text(frame, state="disabled").grid(column=0, row=1, columnspan=4, sticky="EW", pady=10)

# Options
buttons_frame = ttk.Frame(frame)
buttons_frame.grid(column=0, row=2, sticky="W")
ttk.Button(buttons_frame, text="SELECT", command=None).grid(column=0, row=2, sticky="W")
ttk.Button(buttons_frame, text="DELETE", command=None).grid(column=1, row=2, sticky="W")
ttk.Button(buttons_frame, text="Merge", command=None).grid(column=2, row=2, sticky="W")

ttk.Button(frame, text="Close", command=root.destroy).grid(column=3, row=2, sticky="E")

root.mainloop()

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编辑：

您还可以在 Merge 和 Close 之间添加 empy 列，并将 weight=1 分配给该列，这样它就会得到所有空白空间。

需要将Browse和Close移动到下一列，并在Text中增加columnspan

import tkinter as tk
import tkinter.ttk as ttk

root = tk.Tk()
frame = ttk.Frame(root, padding=10)
frame.grid()

frame.columnconfigure(3, weight=1)  # column 3 will use all free space

# Browse
tk.Text(frame, state="disabled", height=1).grid(column=0, row=0, columnspan=4, sticky="W", pady=5, ipadx=2, ipady=2)
ttk.Button(frame, text="Browse", command=None).grid(column=4, row=0, sticky="E")

# Selected files
tk.Text(frame, state="disabled").grid(column=0, row=1, columnspan=5, sticky="EW", pady=10)

# Options
ttk.Button(frame, text="SELECT", command=None).grid(column=0, row=2, sticky="W")
ttk.Button(frame, text="DELETE", command=None).grid(column=1, row=2, sticky="W")
ttk.Button(frame, text="Merge", command=None).grid(column=2, row=2, sticky="W")

ttk.Button(frame, text="Close", command=root.destroy).grid(column=4, row=2, sticky="E")

root.mainloop()