Method SwitchMapType

src/smallmap_gui.cpp:823–834

* Select a new map type. * @param map_type New map type. */

	 * @param map_type New map type.
	 */
	void SwitchMapType(SmallMapType map_type)
	{
		this->RaiseWidget(WID_SM_CONTOUR + this->map_type);
		this->map_type = map_type;
		this->LowerWidget(WID_SM_CONTOUR + this->map_type);

		this->SetupWidgetData();

		if (map_type == SMT_LINKSTATS) this->overlay->SetDirty();
		if (map_type != SMT_INDUSTRY) this->BreakIndustryChainLink();
		this->ReInit();
	}

	/**
	 * Set new #scroll_x, #scroll_y, and #subscroll values after limiting them such that the center