如何在guizero/tkinter中向按钮添加工具提示？

Question

我试图添加工具提示到我的Guizero应用程序，但我似乎不能正确地结合它们。当我试图最小化我所使用的库的数量的时候，如果你能给我一些与Guizero一起工作的东西，那就太好了。

from tkinter import *
from tkinter.tix import *
from guizero import *
app=App(width=500,height=500)

#Create a tooltip
tip = Balloon(app)
app.add_tk_widget(Balloon)

#Create a Button widget
my_button=PushButton(app, text= "Hover Me")


#Bind the tooltip with button
tip.tk.bind_widget(my_button,balloonmsg="hovered text")

app.display()

使用平纹机与吉泽罗

我用的是

• Python 3.10.4
• 吉泽罗 1.3.0
• tkinter.tix

Answer 1

你查过idlelib.tooltip了吗？我知道这适用于tkinter，它很可能适用于guizero。

# quick and dirty example
import guizero as gz  # star imports are not your friend
from idlelib.tooltip import Hovertip

# skipping other imports and stuff for brevity...

my_button = gz.PushButton(app, text='Hover Me')  # button (note the 'gz' namespace)

tooltip = Hovertip(
    my_button.tk,  # the widget that gets the tooltip
    # edited to 'mybutton.tk' per acw1668 - thanks!
    'Super helpful tooltip text'
)

就像我说的，我不确定这是否会对吉泽罗有效，但值得一试。

UPDATE:如果要对Hovertip进行样式设置，可以重写Hovertip类以在__init__中包含样式属性

from idlelib.tooltip import OnHoverTooltipBase  # import this instead of 'Hovertip'


# write your own 'Hovertip' class
class Hovertip(OnHoverTooltipBase):
    """Hovertip with custom styling"""
    def __init__(
        self,
        anchor_widget,
        text,
        hover_delay=1000,
        **kwargs,  # here's where you'll add your tk.Label keywords at init
    ):
        super(Hovertip, self).__init__(anchor_widget, hover_delay=hover_delay)
        self.text = text,
        self.kwargs = kwargs
    
    def showcontents(self):
        """Slightly modified to include **kwargs"""
        label = tk.Label(self.tipwindow, text=self.text, **self.kwargs)

现在，当您初始化一个新的Hovertip时，可以向tk.Label添加参数关键字，如下所示

tooltip = Hovertip(
    my_button.tk,
    'Super stylish tooltip text',
    # any keywords that apply to 'tk.Label' will work here!
    background='azure',  # named colors or '#BADA55' hex colors, as usual
    foreground='#123456',
    relief=tk.SOLID,
    borderwidth=2
)