Method OnInvalidateData

src/smallmap_gui.cpp:1822–1849

* Some data on this window has become invalid. * @param data Information about the changed data. * - data = 0: Displayed industries at the industry chain window have changed. * - data = 1: Companies have changed. * - data = 2: Cheat changing the maximum heightlevel has been used, rebuild our heightlevel-to-colour index * @param gui_scope Whether the call is done from GUI scope. You may n

	 * @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(int data = 0, bool gui_scope = true) override
	{
		if (!gui_scope) return;

		switch (data) {
			case 1:
				/* The owner legend has already been rebuilt. */
				this->ReInit();
				break;

			case 0: {
				extern std::bitset<NUM_INDUSTRYTYPES> _displayed_industries;
				if (this->map_type != SMT_INDUSTRY) this->SwitchMapType(SMT_INDUSTRY);

				for (int i = 0; i != _smallmap_industry_count; i++) {
					_legend_from_industries[i].show_on_map = _displayed_industries.test(_legend_from_industries[i].type);
				}
				break;
			}

			case 2:
				this->RebuildColourIndexIfNecessary();
				break;

			default: NOT_REACHED();
		}
		this->SetDirty();
	}

	bool OnRightClick(Point, WidgetID widget) override
	{