这是我用于检查 ttk 小部件的代码,以了解如何为它们设置主题:
import tkinter as tk
from tkinter import ttk
root = tk.Tk()
var = tk.StringVar()
widget = ttk.OptionMenu(root, var, 'ANY', 'ANY', '0', '1')
widget.grid(column=2, row=1, sticky='nesw')
style = widget.winfo_class()
s = ttk.Style()
#s.theme_use('clam')
elements = s.layout(style)
def get_element_details(elem, _dict, depth=1):
print('%selement: %s' % (''.join(['\t' for s in range(depth)]), elem))
for key in _dict:
if key != 'children':
print('%s%s: %s' % (''.join(['\t' for s in range(depth+1)]), key, _dict[key]))
print('%soption: %s' % (''.join(['\t' for s in range(depth+1)]), s.element_options(elem)))
if 'children' in _dict:
for child, child_dict in _dict['children']:
get_element_details(child, child_dict, depth+1)
print('element: %s' % style)
print('option: %s' % str(s.element_options(style)))
for elem, elem_dict in elements:
get_element_details(elem, elem_dict)
root.mainloop()
简而言之,无需将主题切换为蛤蜊主题之类的东西,小部件中没有任何选项可以添加边框(我知道很愚蠢)
我没有要测试的 vista 主题,但是使用 XP 主题我得到:
element: TMenubutton
option: ()
element: Menubutton.dropdown
side: right
sticky: ns
option: ()
element: Menubutton.button
expand: 1
sticky: nswe
option: ()
element: Menubutton.padding
expand: 1
sticky: we
option: ('-padding', '-relief', '-shiftrelief')
element: Menubutton.label
sticky:
option: ('-compound', '-space', '-text', '-font', '-foreground', '-underline', '-width', '-anchor', '-justify', '-wraplength', '-embossed', '-image', '-stipple', '-background')
并以蛤蜊为主题:
element: TMenubutton
option: ()
element: Menubutton.border
sticky: nswe
option: ('-bordercolor', '-lightcolor', '-darkcolor', '-relief', '-borderwidth')
element: Menubutton.focus
sticky: nswe
option: ('-focuscolor', '-focusthickness')
element: Menubutton.indicator
sticky:
side: right
option: ('-arrowsize', '-arrowcolor', '-arrowpadding')
element: Menubutton.padding
expand: 1
sticky: we
option: ('-padding', '-relief', '-shiftrelief')
element: Menubutton.label
sticky:
side: left
option: ('-compound', '-space', '-text', '-font', '-foreground', '-underline', '-width', '-anchor', '-justify', '-wraplength', '-embossed', '-image', '-stipple', '-background')
注意到边框元素的添加了吗?
如果您尝试使用以下命令将蛤主题选项菜单的布局复制到另一个主题:
newlayout = [('Menubutton.border', {'children': [('Menubutton.focus', {'children': [('Menubutton.indicator', {'sticky': '', 'side': 'right'}), ('Menubutton.padding', {'sticky': 'we', 'expand': '1', 'children': [('Menubutton.label', {'sticky': '', 'side': 'left'})]})], 'sticky': 'nswe'})], 'sticky': 'nswe'})]
s.layout(style, newlayout)
结果是:
element: TMenubutton
option: ()
element: Menubutton.border
sticky: nswe
option: ('-relief',)
element: Menubutton.focus
sticky: nswe
option: ()
element: Menubutton.indicator
sticky:
side: right
option: ('-direction', '-arrowsize', '-arrowcolor')
element: Menubutton.padding
sticky: we
expand: 1
option: ('-padding', '-relief', '-shiftrelief')
element: Menubutton.label
sticky:
side: left
option: ('-compound', '-space', '-text', '-font', '-foreground', '-underline', '-width', '-anchor', '-justify', '-wraplength', '-embossed', '-image', '-stipple', '-background')
它不再具有实际设置边框的选项。本质上,主题引擎无法正确处理具有不同元素的布局。因此,您需要选择一个主题,其中包含您想要设置样式的所有元素的小部件。