Python Forum

Hi again,

i am trying a simple gui, 2 buttons with an image as icon, in this exaple (banane, melone)...
if i press one of the button, the text will be displayed..
it is almost working, however the image icons are tooo big (zoomed out)...what should i do, so that the images fit into the buttons..

class Fruit:
    def __init__(self):
        self.root = Tk()
        self.banane = PhotoImage(file="banane.jpg")
        self.melone = PhotoImage(file="melone.jpg")
        
        self.b1 = Button(self.root,image=self.banane,width="30",height="30", command=self.updatebanane).pack(side=LEFT)
        self.b2 = Button(self.root,image=self.melone,width="30",height="30", command=self.updatemelone).pack(side=LEFT)
        self.label = Label(self.root, font=('Arial', 14), width=20)
        self.label.pack(side=RIGHT)

        self.root.mainloop()

    def updatebanane(self):
            self.label.config(text='Banane')
            
    def updatemelone(self):
            self.label.config(text='Melone')
f = Fruit()

2. Question... is there a way to use events so that i need only one method to update the text instead of 2 ?
i tried the following, it didn't work (i just learned about events yesterday)

self.b1 = Button(self.root,image=self.banane,width="30",height="30", command=self.update).pack(side=LEFT)
self.b2 = Button(self.root,image=self.melone,width="30",height="30", command=self.update).pack(side=LEFT)
.
.
.
    def update(self, event):
        if event.widget = self.b1
            self.label.config(text='Banane')
        if event.widget = self.b2
            self.label.config(text='Melone')

But i get the following error

Error:
TypeError: update() missing 1 required positional argument: 'event'

You have not sent any events to the update function. Generally it is done like this, i.e. sending some identifier to the function

from functools import partial
## rest of the code

## pack returns None so self.b1 and self.b2 are None
Button(self.root,image=self.banane,width="30",height="30",
       command=partial(self.update, "b1")).pack(side=LEFT)
Button(self.root,image=self.melone,width="30",height="30",
       command=partial(self.update, "b2")).pack(side=LEFT)

    def update(self, button_num):
        if button_num=="b1":
            self.label.config(text='Banane')
        elif button_num=="b2":
            self.label.config(text='Melone')

It works. Thanks a lot
but i never heard of that "partial"...i have to find out more about it

Friend

woooee

Friend