def _realize_cb(self, widget):
"""Assorted setup when the widget is realized"""
assert self.menubar is not None
assert self.toolbar1 is not None
assert self.toolbar2 is not None
# Packing details for Grid
self.menubar.set_hexpand(True)
self.toolbar1.set_hexpand(True)
self.toolbar2.set_hexpand(False)
self._fs_menubutton.set_hexpand(False)
# Specialized styles
prov = Gtk.CssProvider()
prov.load_from_data(b"""
.topbar {
padding: 0px; /* required by toolbars */
margin: 0px; /* required by menubar */
}
""")
bars = [self.toolbar1, self.toolbar2, self.menubar]
for b in bars:
style = b.get_style_context()
style.add_provider(prov, Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION)
style.add_class("topbar")
# Initial packing; assume a non-fullscreened state
self.attach(self.menubar, 0, 0, 2, 1)
self.attach(self.toolbar1, 0, 1, 1, 1)
self.attach(self.toolbar2, 1, 1, 1, 1)
# Track state transitions of the window's toplevel
toplevel = self.get_toplevel()
assert toplevel is not None
toplevel.connect("window-state-event", self._toplevel_state_event_cb)
def borderless_button(stock_id=None,
icon_name=None,
size=ICON_SIZE_SMALL,
tooltip=None,
action=None):
"""Create a button styled to be borderless.
>>> borderless_button(icon_name="mypaint") # doctest: +ELLIPSIS
<Gtk.Button...>
"""
button = Gtk.Button()
if stock_id is not None:
image = Gtk.Image()
image.set_from_stock(stock_id, size)
set_margins(image, 0)
button.add(image)
elif icon_name is not None:
image = Gtk.Image()
image.set_from_icon_name(icon_name, size)
set_margins(image, 0)
button.add(image)
elif action is not None:
button.set_related_action(action)
if button.get_child() is not None:
button.remove(button.get_child())
img = action.create_icon(size)
img.set_padding(4, 4)
set_margins(img, 0)
button.add(img)
button.set_relief(Gtk.ReliefStyle.NONE)
button.set_can_default(False)
button.set_can_focus(False)
set_margins(button, 0)
if tooltip is not None:
button.set_tooltip_text(tooltip)
elif action is not None:
button.set_tooltip_text(action.get_tooltip())
cssprov = Gtk.CssProvider()
cssprov.load_from_data(b"GtkButton { padding: 0px; margin: 0px; }")
style = button.get_style_context()
style.add_provider(cssprov, Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION)
button.set_has_tooltip(tooltip is not None)
return button
