Class BuildIndustryWindow

src/industry_gui.cpp:299–763

Build (fund or prospect) a new industry, */

/** Build (fund or prospect) a new industry, */
class BuildIndustryWindow : public Window {
	IndustryType selected_type = IT_INVALID; ///< industry corresponding to the above index
	std::vector<IndustryType> list{}; ///< List of industries.
	bool enabled = false; ///< Availability state of the selected industry.
	Scrollbar *vscroll = nullptr;
	Dimension legend{}; ///< Dimension of the legend 'blob'.
	GUIBadgeClasses badge_classes{};

	/** The largest allowed minimum-width of the window, given in line heights */
	static const int MAX_MINWIDTH_LINEHEIGHTS = 20;

	void UpdateAvailability()
	{
		this->enabled = this->selected_type != IT_INVALID && (_game_mode == GM_EDITOR || GetIndustryProbabilityCallback(this->selected_type, IACT_USERCREATION, 1) > 0);
	}

	void SetupArrays()
	{
		this->list.clear();

		/* Fill the arrays with industries.
		 * The tests performed after the enabled allow to load the industries
		 * In the same way they are inserted by grf (if any)
		 */
		for (IndustryType ind : _sorted_industry_types) {
			const IndustrySpec *indsp = GetIndustrySpec(ind);
			if (indsp->enabled) {
				/* Rule is that editor mode loads all industries.
				 * In game mode, all non raw industries are loaded too
				 * and raw ones are loaded only when setting allows it */
				if (_game_mode != GM_EDITOR && indsp->IsRawIndustry() && _settings_game.construction.raw_industry_construction == 0) {
					/* Unselect if the industry is no longer in the list */
					if (this->selected_type == ind) this->selected_type = IT_INVALID;
					continue;
				}

				this->list.push_back(ind);
			}
		}

		/* First industry type is selected if the current selection is invalid. */
		if (this->selected_type == IT_INVALID && !this->list.empty()) this->selected_type = this->list[0];

		this->UpdateAvailability();

		this->vscroll->SetCount(this->list.size());
	}

	/** Update status of the fund and display-chain widgets. */
	void SetButtons()
	{
		this->SetWidgetDisabledState(WID_DPI_FUND_WIDGET, this->selected_type != IT_INVALID && !this->enabled);
		this->SetWidgetDisabledState(WID_DPI_DISPLAY_WIDGET, this->selected_type == IT_INVALID && this->enabled);
	}

	/**
	 * Build a string of cargo names with suffixes attached.
	 * This is distinct from the CARGO_LIST string formatting code in two ways: