thumbnail.py 文件源码

def _build_ui(self):
        self.set_border_width(3)
        # the frame around the screenshot (placeholder)
        self.screenshot = Gtk.VBox()
        self.pack_start(self.screenshot, True, True, 0)

        self.spinner = Gtk.Spinner()
        self.spinner.set_size_request(*self.SPINNER_SIZE)
        self.spinner.set_valign(Gtk.Align.CENTER)
        self.spinner.set_halign(Gtk.Align.CENTER)
        self.screenshot.add(self.spinner)

        # clickable screenshot button
        self.button = ScreenshotButton()
        self.screenshot.pack_start(self.button, True, False, 0)

        # unavailable layout
        self.unavailable = Gtk.Label(label=_(self.NOT_AVAILABLE_STRING))
        self.unavailable.set_alignment(0.5, 0.5)
        # force the label state to INSENSITIVE so we get the nice
        # subtle etched in look
        self.unavailable.set_state(Gtk.StateType.INSENSITIVE)
        self.screenshot.add(self.unavailable)

        self.thumbnails = ThumbnailGallery(self)
        self.thumbnails.set_margin_top(5)
        self.thumbnails.set_halign(Gtk.Align.CENTER)
        self.pack_end(self.thumbnails, False, False, 0)
        self.thumbnails.connect(
            "thumb-selected", self.on_thumbnail_selected)
        self.button.connect("clicked", self.on_clicked)
        self.button.connect('enter-notify-event', self._on_enter)
        self.button.connect('leave-notify-event', self._on_leave)
        self.show_all()