Method OnInvalidateData

src/signs_gui.cpp:302–313

* Some data on this window has become invalid. * @param data Information about the changed data. * @param gui_scope Whether the call is done from GUI scope. You may not do everything when not in GUI scope. See #InvalidateWindowData() for details. */

	 * @param gui_scope Whether the call is done from GUI scope. You may not do everything when not in GUI scope. See #InvalidateWindowData() for details.
	 */
	void OnInvalidateData([[maybe_unused]] int data = 0, [[maybe_unused]] bool gui_scope = true) override
	{
		/* When there is a filter string, we always need to rebuild the list even if
		 * the amount of signs in total is unchanged, as the subset of signs that is
		 * accepted by the filter might has changed. */
		if (data == 0 || data == -1 || !this->string_filter.IsEmpty()) { // New or deleted sign, changed visibility setting or there is a filter string
			/* This needs to be done in command-scope to enforce rebuilding before resorting invalid data */
			this->signs.ForceRebuild();
		} else { // Change of sign contents while there is no filter string
			this->signs.ForceResort();
		}
	}

	/**
	 * Handler for global hotkeys of the SignListWindow.