tkinter.(ttk.)OptionMenu【オプションメニュー (ドロップダウンリスト)】

動的外観変更〔 例 〕

style.map (スタイル名, 対象 = [(状態, 状態の値)])

色の詳細

配置位置の詳細 ( anchor )

マウスカーソル名の詳細 ( cursor )

テキストと画像の合成の詳細 ( compound )

ビットマップ画像の詳細 ( bitmap )

内部間隔リストの詳細 ( padding )

外観の詳細 ( relief )

import tkinter as tk
import tkinter.ttk as ttk

# トップレベルウィンドウ作成
root = tk.Tk()
root.geometry("240x120")
lst = ["Value A", "Value B", "Value C"]

# OptionMenu
var_option = tk.StringVar(value=lst[0])
optionmenu = tk.OptionMenu(
    root,
    var_option,
    #"Value A", "Value B", "Value C",  # Python 8.5 未満
    *lst,  # Python 8.5 以上
)
optionmenu.pack(side=tk.LEFT, padx=10, pady=10, anchor=tk.N)

# ttk.OptionMenu
var_option_ttk = tk.StringVar()
optionmenu_ttk = ttk.OptionMenu(
    root,
    var_option_ttk,
    lst[0],
    #"Value A", "Value B", "Value C",  # Python 8.5 未満
    *lst,  # Python 8.5 以上
)
optionmenu_ttk.pack(side=tk.LEFT, padx=10, pady=10, anchor=tk.N)

# メインループ
root.mainloop()

import tkinter as tk
import tkinter.ttk as ttk


def select(value):
    var_msg.set(value)


def get():
    msg = var_option.get() + " / " + optionmenu['text']
    msg += "\n" + var_option_ttk.get() + " / " + optionmenu_ttk['text']
    var_msg.set(msg)


# トップレベルウィンドウ作成
root = tk.Tk()
lst = ["Value A", "Value B", "Value C"]

# OptionMenu
var_option = tk.StringVar()
var_option.set(lst[1])
optionmenu = tk.OptionMenu(
    root,
    var_option,
    *lst,
    command=select,
)
optionmenu.pack(padx=10, pady=10)

# ttk.OptionMenu
var_option_ttk = tk.StringVar()
optionmenu_ttk = ttk.OptionMenu(
    root,
    var_option_ttk,
    lst[2],
    *lst,
    command=select,
)
optionmenu_ttk.pack(padx=10, pady=10)

# Button
button = ttk.Button(
    root,
    command=get,
    text="Get",
)
button.pack(padx=10, pady=10)

# Label
var_msg = tk.StringVar(value="var_msg")
label = ttk.Label(
    root,
    textvariable=var_msg,
    relief=tk.SUNKEN,
)
label.pack(side=tk.BOTTOM, fill=tk.X)

# メインループ
root.mainloop()

import tkinter as tk
import tkinter.ttk as ttk
from tkinter import font

# トップレベルウィンドウ作成
root = tk.Tk()
root.geometry("300x150")
font_std = font.Font(size=12, weight="bold")
lst = ["Value A", "Value B", "Value C"]

# OptionMenu
var_option = tk.StringVar(value=lst[0])
optionmenu = tk.OptionMenu(
    root,
    var_option,
    *lst
)
optionmenu['font'] = font_std
optionmenu['width'] = 10
optionmenu['anchor'] = tk.E
optionmenu['justify'] = tk.RIGHT
optionmenu['background'] = "lightgreen"
optionmenu['foreground'] = "blue"
menu = optionmenu['menu']
menu.config(font=font_std)
for index in range(menu.index(tk.END)+1):
    if index % 2 == 0:
        menu.entryconfigure(index, background="lightgreen")
        menu.entryconfigure(index, foreground="blue")
optionmenu.pack(side=tk.LEFT, padx=10, pady=10, anchor=tk.N)

# ttk.OptionMenu
style = ttk.Style()
style.configure(
    "example.TMenubutton",
    font=font_std,
    anchor=tk.E,
    justify=tk.RIGHT,
    background="lightgreen",
    foreground="blue",
)
style.map(
    "example.TMenubutton",
    background=[
        ('active', "green"),
        ('disabled', "orange"),
    ],
    foreground=[
        ('active', "orange"),
        ('disabled', "green"),
    ],
)
var_option_ttk = tk.StringVar()
optionmenu_ttk = ttk.OptionMenu(
    root,
    var_option_ttk,
    lst[0],
    *lst,
    style="example.TMenubutton",
)
optionmenu_ttk['width'] = 10
menu = optionmenu_ttk['menu']
menu.config(font=font_std)
for index in range(menu.index(tk.END)+1):
    if index % 2 == 0:
        menu.entryconfigure(index, background="lightgreen")
        menu.entryconfigure(index, foreground="blue")
optionmenu_ttk.pack(side=tk.LEFT, padx=10, pady=10, anchor=tk.N)

# メインループ
root.mainloop()