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#!/usr/local/cpython-3.6/bin/python3 |
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# pylint: disable=wrong-import-position |
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"""Give a toggle button, see what it looks like.""" |
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import sys |
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import gi |
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gi.require_version('Gtk', '3.0') |
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from gi.repository import Gtk, Gdk # noqa |
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CSS = b''' |
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#MyToggleButton:checked { |
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background: red; |
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} |
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''' |
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def make_used(thing): |
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"""Persuade pyflakes that we don't want to worry about 'thing' not being used.""" |
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assert True or thing |
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class GiveToggleButtons(object): |
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"""Create a window with a pair of toggle buttons.""" |
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def __init__(self): |
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"""Initialize.""" |
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self.window = Gtk.Window(Gtk.WindowType.TOPLEVEL) |
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self.window.set_title('Foo') |
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self.window.connect("delete_event", self.delete_event) |
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self.window.show() |
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self.vbox = Gtk.VBox() |
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self.vbox.show() |
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self.window.add(self.vbox) |
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self.toggle_button1 = Gtk.ToggleButton('Click me 1') |
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self.toggle_button1.set_name("MyToggleButton") |
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self.toggle_button1.show() |
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self.toggle_button1.connect("clicked", self.toggle) |
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self.vbox.pack_start(self.toggle_button1, True, True, 0) |
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self.toggle_button2 = Gtk.ToggleButton('Click me 2') |
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self.toggle_button2.set_name("MyToggleButton") |
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self.toggle_button2.show() |
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self.toggle_button2.connect("clicked", self.toggle) |
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self.vbox.pack_start(self.toggle_button2, True, True, 0) |
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screen = Gdk.Screen.get_default() |
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cssprovider = Gtk.CssProvider() |
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cssprovider.load_from_data(CSS) |
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stylecontext = self.window.get_style_context() |
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stylecontext.add_provider_for_screen(screen, cssprovider, |
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Gtk.STYLE_PROVIDER_PRIORITY_USER) |
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Gtk.main() |
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@staticmethod |
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def delete_event(*args, **kwargs): |
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"""Shut down GTK.""" |
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make_used(args) |
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make_used(kwargs) |
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Gtk.main_quit() |
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sys.exit(0) |
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def toggle(self, widget=None): |
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"""Called when a button is toggled.""" |
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if widget is self.toggle_button1: |
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print('toggled 1') |
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elif widget is self.toggle_button2: |
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print('toggled 2') |
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else: |
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print('toggled, but what?') |
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GiveToggleButtons() |
