英文:
How to update the background color of a combobox in PySimpleGUI?
问题
我想要能够将组合框的背景更改为红色，以指示用户忘记选择选项。我可以更改文本字段的背景颜色，但无法更改组合框的背景，如下所示，在最小可重现示例中。
import PySimpleGUI as sg
test_layout = [[sg.Combo([1, 2, 3], key="combo"), sg.Text("Name", key="text")]]
window = sg.Window(
"Test",
test_layout,
location=(0, 0),
)
while True:
event, values = window.read(timeout=5)
window["combo"].Widget.config(background="red")
window["text"].Widget.config(background="red")
是否有一种不同的方法来更新组合框的背景颜色？
谢谢你提前！
英文:
I want to be able to change the background of a combobox to red to indicate to the user that they forgot to select an option. I can change the background color of a text field, but not a combobox, as seen below, in the minimum reproducible example.
import PySimpleGUI as sg
test_layout = [[sg.Combo([1, 2, 3], key="combo"), sg.Text("Name", key="text")]]
window = sg.Window(
"Test",
test_layout,
location=(0, 0),
)
while True:
event, values = window.read(timeout=5)
window["combo"].Widget.config(background="red")
window["text"].Widget.config(background="red")
Is there a different way to update the background of the combobox?
Thank you in advance!
答案1
得分: 2
# 在`Combo`元素中需要ttk样式
import PySimpleGUI as sg
sg.set_options(font=("Courier New", 40))
layout = [
[sg.Combo([1, 2, 3], background_color='blue', text_color='white', key="combo"),
sg.Text("Name", key="text")],
[sg.Button('Update')],
]
window = sg.Window('Title', layout, finalize=True)
combo = window['combo']
while True:
event, values = window.read()
if event == sg.WIN_CLOSED:
break
elif event == 'Update':
combo_style = combo.ttk_style
style_name = combo.widget["style"]
# style_name = combo.ttk_style_name if PySimpleGUI version 4.61.0.160
combo_style.configure(style_name, foreground='yellow', fieldbackground='red')
window.close()
# 从Github更新到新版本
# 4.61.0.162
# Combo.update新增了一些参数，可以设置文本颜色和背景颜色，字体现在正确应用于下拉列表
# 然后，可以像这样做：
elif event == 'Update':
window["combo"].update(text_color='yellow', background_color='red')
英文:
For entry field in the Combo element, ttk style required here
import PySimpleGUI as sg
sg.set_options(font=("Courier New", 40))
layout = [
[sg.Combo([1, 2, 3], background_color='blue', text_color='white', key="combo"),
sg.Text("Name", key="text")],
[sg.Button('Update')],
]
window = sg.Window('Title', layout, finalize=True)
combo = window['combo']
while True:
event, values = window.read()
if event == sg.WIN_CLOSED:
break
elif event == 'Update':
combo_style = combo.ttk_style
style_name = combo.widget["style"]
# style_name = combo.ttk_style_name if PySimpleGUI version 4.61.0.160
combo_style.configure(style_name, foreground='yellow', fieldbackground='red')
window.close()
Update to new version from Github
> 4.61.0.162
>
> Addition of new parms to Combo.update - text color, background color. Also font now applied correctly to dropdown list
Then, you can do it like
elif event == 'Update':
window["combo"].update(text_color='yellow', background_color='red')
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