Set tkinter icon on Mac OS

问题

I am trying to change the icon that appears on my tk application for Mac OS. The last time I checked this code worked for windows. The goal is for this solution to work across all platforms.

root = tk.Tk()
app = Application(master=root)

app.master.iconbitmap("my_icon.ico")

app.mainloop()

The code is adding the default icon for a .pdf file which is not what I intended. The path to the my_icon.ico is correct. Why won't this work for Mac OS? Is there an ultimate solution that will work cross-platform?

回答1:

According to the tk tcl documentation you may want to try wm iconphoto. It appears it may support OSX and it also mentions to set the file to around a 512x512 for smooth rendering in MAC.

I do not have MAC so I cannot test this but give this a shot and let me know if it helped.

Update:

As @l'L'l pointed out you may want to try root.iconphoto(True, img). I am unable to test it myself due to not having Mac.

import tkinter as tk

root = tk.Tk()
img = tk.Image("photo", file="icon.gif")
# root.iconphoto(True, img) # you may also want to try this.
root.tk.call('wm','iconphoto', root._w, img)

root.mainloop()

Here is the relevant text from the documentation here:

wm iconphoto window ?-default? image1 ?image2 ...? Sets the titlebar icon for window based on the named photo images. If -default is specified, this is applied to all future created toplevels as well. The data in the images is taken as a snapshot at the time of invocation. If the images are later changed, this is not reflected to the titlebar icons. Multiple images are accepted to allow different images sizes (e.g., 16x16 and 32x32) to be provided. The window manager may scale provided icons to an appropriate size. On Windows, the images are packed into a Windows icon structure. This will override an ico specified to wm iconbitmap, and vice versa.

On X, the images are arranged into the _NET_WM_ICON X property, which most modern window managers support. A wm iconbitmap may exist simultaneously. It is recommended to use not more than 2 icons, placing the larger icon first.

On Macintosh, the first image called is loaded into an OSX-native icon format, and becomes the application icon in dialogs, the Dock, and other contexts. At the script level the command will accept only the first image passed in the parameters as support for multiple sizes/resolutions on macOS is outside Tk's scope. Developers should use the largest icon they can support (preferably 512 pixels) to ensure smooth rendering on the Mac.

I did test this on windows to make sure it at least works there. I used a blue square image to test.

If the above documentations is accurate it should also work on MAC.

回答2:

Important Note: This method is long and a lot of work for the task at hand. However, it does come with some unrelated benefits. Note that there might be a better way, but this will work.
Anyway, moving on....

You can use py2app.

Py2app will turn your program into a .app, meaning it runs as an application (because it is). When using tkinter this is usually what you want in the end because GUIs are usually turned into apps for ease of use. You can read the py2app documentation here, or read a non-official but easier to understand (in my opinion) tutorial here. I will also sum up how to do the process.

First install py2app: Enter this into the command prompt:

sudo pip install -U py2app

If successful, you should get py2app. If not, one problem might be you don’t have pip. You can download it with another command:

sudo easy_install pip

Step one: Create a file called setup.py in the same dictionary as the program.

Step two: Put this into the file.

from setuptools import setup

#APP would be the name of the file your code is in.
APP = ['example.py']
DATA_FILES = []
#The Magic is in OPTIONS.
OPTIONS = {
    'argv_emulation': False,
    'iconfile': 'app.icns', #change app.icns to the image file name!!!
    }

setup(
    app=APP,
    name='Your app’s name', #change to anything
    data_files=DATA_FILES,
    options={'py2app': OPTIONS},
    setup_requires=['py2app'],
)

Step 3: Then open the bash terminal in the dictionary the file is in and type this command:

python setup.py py2app -A

The -A makes the app respond to updates in the code, but makes the app unsharable. When you are done developing, rerun the command, this time without the -A, like so:

python setup.py py2app

Note: You may need to use the command python3 setup.py py2... instead of python setup.py py2... for a python 3 py2app.

Step 4: Navigate to the dictionary your code is in/dist. In that folder will be your app. (The dist folder should have been created in step three when you ran the command)

For windows users: py2app is not what should be used, instead use py2exe.

回答3:

If you are using Mac OS you have to use a .icns image instead a .ico image.

you can use:

from tkinter import Tk
from platform import system

platformD = system()
if platformD == 'Darwin':

    logo_image = 'images/logo.icns'

elif platformD == 'Windows':

    logo_image = 'images/logo.ico'

else:

    logo_image = 'images/logo.xbm'

root = Tk()
root.title("My App")
root.iconbitmap(logo_image)
root.resizable(0, 0)
root.mainloop()

来源：https://stackoverflow.com/questions/52826692/set-tkinter-icon-on-mac-os

标签

python

macos

tkinter

icons

cross-platform