Method OnInit

src/smallmap_gui.cpp:1526–1580

	}

	void OnInit() override
	{
		uint min_width = 0;
		this->min_number_of_columns = INDUSTRY_MIN_NUMBER_OF_COLUMNS;
		this->min_number_of_fixed_rows = lengthof(_linkstat_colours_in_legenda);
		for (uint i = 0; i < lengthof(_legend_table); i++) {
			uint height = 0;
			uint num_columns = 1;
			for (const LegendAndColour *tbl = _legend_table[i]; !tbl->end; ++tbl) {
				std::string str;
				if (i == SMT_INDUSTRY) {
					str = GetString(STR_SMALLMAP_INDUSTRY, tbl->legend, IndustryPool::MAX_SIZE);
				} else if (i == SMT_LINKSTATS) {
					str = GetString(STR_SMALLMAP_LINKSTATS, tbl->legend);
				} else if (i == SMT_OWNER) {
					if (tbl->company != CompanyID::Invalid()) {
						if (!Company::IsValidID(tbl->company)) {
							/* Rebuild the owner legend. */
							BuildOwnerLegend();
							this->OnInit();
							return;
						}
						/* Non-fixed legend entries for the owner view. */
						str = GetString(STR_SMALLMAP_COMPANY, tbl->company);
					} else {
						str = GetString(tbl->legend);
					}
				} else {
					if (tbl->col_break) {
						this->min_number_of_fixed_rows = std::max(this->min_number_of_fixed_rows, height);
						height = 0;
						num_columns++;
					}
					height++;
					if (i == SMT_CONTOUR) {
						str = GetString(tbl->legend, tbl->height * TILE_HEIGHT_STEP);
					} else {
						str = GetString(tbl->legend);
					}
				}
				min_width = std::max(GetStringBoundingBox(str).width, min_width);
			}
			this->min_number_of_fixed_rows = std::max(this->min_number_of_fixed_rows, height);
			this->min_number_of_columns = std::max(this->min_number_of_columns, num_columns);
		}

		/* Width of the legend blob. */
		this->legend_width = GetCharacterHeight(FS_SMALL) * 9 / 6;

		/* The width of a column is the minimum width of all texts + the size of the blob + some spacing */
		this->column_width = min_width + WidgetDimensions::scaled.hsep_normal + this->legend_width + WidgetDimensions::scaled.framerect.Horizontal();

		/* Cached string widths of industry names in the smallmap. Calculation is deferred to DrawIndustryNames(). */
		std::fill(std::begin(_industry_to_name_string_width), std::end(_industry_to_name_string_width), 0);
	}

	void OnPaint() override
	{