[英]A customized menu bar without using the widget tk.Menu
我想個性化一個菜單欄。 例如,我想刪除出現在 tk.Menu 小部件周圍的邊框(使用 add_command() 方法)
這是我的代碼(我使用的是 Windows 10)
import tkinter as tk
from tkinter import ttk
dark_grey = "#212121"
dark_blue="#102A43"
blue_1="#243B53"
root = tk.Tk()
root.state('zoomed')
container = tk.Frame(root, bg = dark_grey)
container.grid_rowconfigure(0, weight = 0)
container.grid_columnconfigure(0, weight = 1)
menu_frame = tk.Frame(container, bg = dark_blue)
menu1 = tk.Menubutton(menu_frame, text = "Menu1", bg = dark_blue, fg =
"white", activebackground = blue_1, activeforeground =
"white")
menu1.grid(row = 0, column = 0)
submenu1 = tk.Menu(menu1, tearoff = 0, bg = dark_blue,
activebackground= blue_1, fg = "white",borderwidth = 0, activeborderwidth= 0)
submenu1.add_command(label = "Option 1.1")
submenu1.add_command(label = "Option 1.2")
menu1.configure(menu = submenu1)
menu_frame.grid(row = 0, column = 0, sticky = "ew")
container.pack(fill = tk.BOTH, expand = "True")
root.mainloop()
我的想法是創建一個不使用 tk.Menu 和 tk.MenuButton 的菜單。 我想將<Enter>
事件“綁定”到標簽,以便在標簽下創建一種下拉菜單。 是否可以?
問題:不使用小部件
tk.Menu
自定義菜單欄?
此示例使用tk.Toplevel
作為彈出窗口並顯示添加的tk.Menubutton
。
子菜單遵循頂部tk.Menubutton
定義樣式。
待辦事項:
- 如果點擊的外部或另一個頂部】【關閉彈出窗口
Menubutton
。- 使用
tk.Menubutton
以外的其他方式擴展- 鍵盤支持
import tkinter as tk
class Menu:
def __init__(self, parent, **kwargs):
self._popup = None
self._menubutton = []
self.parent = parent
self.parent.bind('<Button-1>', self.on_popup)
def on_popup(self, event):
w = event.widget
x, y, height = self.parent.winfo_rootx(), self.parent.winfo_rooty(), self.parent.winfo_height()
self._popup = tk.Toplevel(self.parent.master, bg=self.parent.cget('bg'))
self._popup.overrideredirect(True)
self._popup.geometry('+{}+{}'.format(x, y + height))
for kwargs in self._menubutton:
self._add_command(**kwargs)
def add_command(self, **kwargs):
self._menubutton.append(kwargs)
def _add_command(self, **kwargs):
command = kwargs.pop('command', None)
menu = self.parent
mb = tk.Menubutton(self._popup, text=kwargs['label'],
bg=menu.cget('bg'),
fg=menu.cget('fg'),
activebackground=menu.cget('activebackground'),
activeforeground=menu.cget('activeforeground'),
borderwidth=0,
)
mb._command = command
mb.bind('<Button-1>', self._on_command)
mb.grid()
def _on_command(self, event):
w = event.widget
print('_on_command("{}")'.format(w.cget('text')))
self._popup.destroy()
if w._command is not None:
w._command()
用法:
class App(tk.Tk):
def __init__(self):
super().__init__()
self.geometry("200x200")
style = {'bg': "#102A43", 'fg': "white",
'activebackground': "#243B53", 'activeforeground': "white",
'borderwidth': 0}
menu1 = tk.Menubutton(self, text="Menu1", **style)
submenu1 = Menu(menu1)
submenu1.add_command(label="Option 1.1")
submenu1.add_command(label="Option 1.2")
menu1.grid(row=0, column=0)
menu2 = tk.Menubutton(self, text="Menu2", **style)
submenu2 = Menu(menu2)
submenu2.add_command(label="Option 2.1")
submenu2.add_command(label="Option 2.2")
menu2.grid(row=0, column=2)
if __name__ == "__main__":
App().mainloop()
用 Python 測試:3.5 - 'TclVersion':8.6 'TkVersion':8.6
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