shift+click a vanilla checkbox to un/check other checkboxes

checkbox_only_allbut.py

from vanilla import *
from AppKit import NSEvent, NSShiftKeyMask, NSCommandKeyMask, NSAlternateKeyMask, NSControlKeyMask


class Test_Only_CheckBox():

    def __init__(self):
        u = 22
        self.w = Window((250, u*10), 'Test_Only_CheckBox')
        self.w.check_0 = CheckBox((5, u*0, -5, u), 'Check 0', value=True, callback=self.checks)
        self.w.check_1 = CheckBox((5, u*1, -5, u), 'Check 1', value=True, callback=self.checks)
        self.w.check_2 = CheckBox((5, u*2, -5, u), 'Check 2', value=True, callback=self.checks)
        self.w.check_3 = CheckBox((5, u*3, -5, u), 'Check 3', value=True, callback=self.checks)
        self.w.check_4 = CheckBox((5, u*4, -5, u), 'Check 4', value=True, callback=self.checks)
        self.w.check_5 = CheckBox((5, u*5, -5, u), 'Check 5', value=True, callback=self.checks)
        self.checkboxes = [self.w.check_0, self.w.check_1, self.w.check_2, self.w.check_3, self.w.check_4, self.w.check_5]
        self.w.open()

    def checks(self, sender):
        sender_value = sender.get()
        print('checks()', sender.getTitle(), sender_value)
        if NSEvent.modifierFlags() and NSShiftKeyMask:
            print('NSShiftKeyMask')
            for checkbox in self.checkboxes:
                if checkbox != sender:
                    checkbox.set(not sender_value)
            return
        print('No Modifier')


Test_Only_CheckBox()