icons_select.py 文件源码

def _build_header_bar(self):
        """Setup window headerbar."""
        # Header bar
        headerbar = Gtk.HeaderBar()
        headerbar_container = Gtk.Box(orientation=Gtk.Orientation.VERTICAL,
                                      spacing=3)

        title = Gtk.Label()
        title.set_text(_("Icon Chooser"))
        title.get_style_context().add_class("title")
        headerbar_container.pack_start(title, False, False, 0)

        subtitle = Gtk.Label()
        subtitle.get_style_context().add_class("subtitle")
        subtitle_text = ", ".join(self._folders)
        subtitle.set_text(subtitle_text)
        subtitle.set_ellipsize(Pango.EllipsizeMode.END)
        subtitle.set_tooltip_text(subtitle_text)
        subtitle.props.max_width_chars = 30
        headerbar_container.pack_start(subtitle, False, False, 0)

        headerbar.set_custom_title(headerbar_container)
        headerbar.set_show_close_button(False)

        # Search Button
        self._search_btn = Gtk.ToggleButton()
        search_icn = Gio.ThemedIcon(name="system-search-symbolic")
        search_img = Gtk.Image.new_from_gicon(search_icn, Gtk.IconSize.BUTTON)
        self._search_btn.set_image(search_img)

        # Cancel Button
        cancel_button = Gtk.Button()
        cancel_button.set_label(_("Cancel"))
        cancel_button.connect("clicked", self.close_window)

        headerbar.pack_start(cancel_button)
        headerbar.pack_end(self._search_btn)
        self.set_titlebar(headerbar)