apptreeview.py 文件源码

def _on_key_press_event(self, widget, event, tr):
        kv = event.keyval
        #print kv
        r = False
        if kv == Gdk.KEY_Right:  # right-key
            btn = tr.get_button_by_name(CellButtonIDs.ACTION)
            if btn is None:
                return  # Bug #846779
            if btn.state != Gtk.StateFlags.INSENSITIVE:
                btn.has_focus = True
                btn = tr.get_button_by_name(CellButtonIDs.INFO)
                btn.has_focus = False
        elif kv == Gdk.KEY_Left:  # left-key
            btn = tr.get_button_by_name(CellButtonIDs.ACTION)
            if btn is None:
                return  # Bug #846779
            btn.has_focus = False
            btn = tr.get_button_by_name(CellButtonIDs.INFO)
            btn.has_focus = True
        elif kv == Gdk.KEY_space:  # spacebar
            for btn in tr.get_buttons():
                if (btn is not None and btn.has_focus and
                    btn.state != Gtk.StateFlags.INSENSITIVE):
                    btn.set_state(Gtk.StateFlags.ACTIVE)
                    sel = self.get_selection()
                    model, it = sel.get_selected()
                    path = model.get_path(it)
                    if path:
                        #self._init_activated(btn, self.get_model(), path)
                        r = True
                    break

        self.queue_draw()
        return r