Add station cargo history

src/date.cpp

@@ -184,6 +184,7 @@ extern void CompaniesMonthlyLoop();
 extern void EnginesMonthlyLoop();
 extern void TownsMonthlyLoop();
 extern void IndustryMonthlyLoop();
+extern void StationDailyLoop();
 extern void StationMonthlyLoop();
 extern void SubsidyMonthlyLoop();
 
@@ -276,6 +277,7 @@ static void OnNewDay()
 
 	DisasterDailyLoop();
 	IndustryDailyLoop();
+	StationDailyLoop();
 
 	if (!_settings_time.time_in_minutes || _settings_client.gui.date_with_time > 0) {
 		SetWindowWidgetDirty(WC_STATUS_BAR, 0, WID_S_LEFT);

src/graph_gui.cpp

@@ -31,6 +31,7 @@
 #include <math.h>
 
 #include "safeguards.h"
+#include "station_base.h"
 
 /* Bitmasks of company and cargo indices that shouldn't be drawn. */
 static CompanyMask _legend_excluded_companies;
@@ -1649,3 +1650,274 @@ void InitializeGraphGui()
 	_legend_excluded_companies = 0;
 	_legend_excluded_cargo = 0;
 }
+
+/*************************/
+/* STATION CARGO HISTORY */
+/*************************/
+struct StationCargoGraphWindow final : BaseGraphWindow {
+	StationID station_id;
+	uint line_height {};  ///< Pixel height of each cargo type row.
+	Scrollbar *vscroll;   ///< Cargo list scrollbar.
+	uint legend_width {}; ///< Width of legend 'blob'.
+	CargoTypes legend_excluded_cargo;
+
+	StationCargoGraphWindow(WindowDesc *desc, WindowNumber window) :
+		BaseGraphWindow(desc, WID_SCG_GRAPH, STR_JUST_COMMA)
+	{
+		station_id = static_cast<uint16>(window);
+
+		this->num_on_x_axis = MAX_STATION_CARGO_HISTORY_DAYS; // Four weeks
+		this->num_vert_lines = MAX_STATION_CARGO_HISTORY_DAYS;
+		this->month = 0xFF;
+		this->x_values_start = 2;
+		this->x_values_increment = 2;
+
+		this->CreateNestedTree();
+		this->vscroll = this->GetScrollbar(WID_SCG_MATRIX_SCROLLBAR);
+		this->vscroll->SetCount(_sorted_standard_cargo_specs_size);
+
+		/* Initialise the data set */
+		this->OnHundredthTick();
+
+		this->FinishInitNested(window);
+	}
+
+	void OnInit() override
+	{
+		/* Width of the legend blob. */
+		this->legend_width = (FONT_HEIGHT_SMALL - ScaleFontTrad(1)) * 8 / 5;
+		this->legend_excluded_cargo = 0;
+
+		const Station* station = Station::GetIfValid(this->station_id);
+
+		if (station == nullptr) return;
+		
+		const CargoSpec *cs;
+		FOR_ALL_SORTED_STANDARD_CARGOSPECS(cs) {
+			if (station->goods[cs->Index()].cargo.AvailableCount() == 0) {
+				SetBit(legend_excluded_cargo, cs->Index());
+			}
+		}
+	}
+
+	void SetStringParameters(int widget) const override
+	{
+		if (widget == WID_SCG_CAPTION) {
+			SetDParam(0, this->station_id);
+		}
+	}
+
+	void UpdateExcludedData()
+	{
+		this->excluded_data = 0;
+
+		uint8 i = 0;
+		const CargoSpec *cs;
+		FOR_ALL_SORTED_STANDARD_CARGOSPECS(cs) {
+			if (HasBit(legend_excluded_cargo, cs->Index())) SetBit(this->excluded_data, i);
+			i++;
+		}
+	}
+
+	void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize) override
+	{
+		if (widget < WID_SCG_MATRIX) {
+			BaseGraphWindow::UpdateWidgetSize(widget, size, padding, fill, resize);
+			return;
+		}
+
+		const CargoSpec *cs;
+		FOR_ALL_SORTED_STANDARD_CARGOSPECS(cs) {
+			SetDParam(0, cs->name);
+			Dimension d = GetStringBoundingBox(STR_GRAPH_CARGO_PAYMENT_CARGO);
+			d.width += this->legend_width + 4; // color field
+			d.width += WD_FRAMERECT_LEFT + WD_FRAMERECT_RIGHT;
+			d.height += WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM;
+			*size = maxdim(d, *size);
+		}
+
+		this->line_height = size->height;
+		size->height = this->line_height * 11; /* Default number of cargo types in most climates. */
+		resize->width = 0;
+		resize->height = this->line_height;
+	}
+
+	void DrawWidget(const Rect &r, int widget) const override
+	{
+		if (widget < WID_SCG_MATRIX) {
+			BaseGraphWindow::DrawWidget(r, widget);
+			return;
+		}
+
+		const bool rtl = _current_text_dir == TD_RTL;
+
+		int x = r.left + WD_FRAMERECT_LEFT;
+		int y = r.top;
+		const uint row_height = FONT_HEIGHT_SMALL;
+		const int padding = ScaleFontTrad(1);
+
+		int pos = this->vscroll->GetPosition();
+		int max = pos + this->vscroll->GetCapacity();
+
+		const CargoSpec *cs;
+		FOR_ALL_SORTED_STANDARD_CARGOSPECS(cs) {
+			if (pos-- > 0) continue;
+			if (--max < 0) break;
+
+			const bool lowered = !HasBit(legend_excluded_cargo, cs->Index());
+
+			/* Redraw box if lowered */
+			if (lowered) DrawFrameRect(r.left, y, r.right, y + this->line_height - 1, COLOUR_BROWN, lowered ? FR_LOWERED : FR_NONE);
+
+			const byte clk_dif = lowered ? 1 : 0;
+			const int rect_x = clk_dif + (rtl ? r.right - this->legend_width - WD_FRAMERECT_RIGHT : r.left + WD_FRAMERECT_LEFT);
+
+			GfxFillRect(rect_x, y + padding + clk_dif, rect_x + this->legend_width, y + row_height - 1 + clk_dif, PC_BLACK);
+			GfxFillRect(rect_x + 1, y + padding + 1 + clk_dif, rect_x + this->legend_width - 1, y + row_height - 2 + clk_dif, cs->legend_colour);
+			SetDParam(0, cs->name);
+			DrawString(rtl ? r.left : x + this->legend_width + 4 + clk_dif, (rtl ? r.right - this->legend_width - 4 + clk_dif : r.right), y + clk_dif, STR_GRAPH_CARGO_PAYMENT_CARGO);
+
+			y += this->line_height;
+		}
+	}
+
+	void OnClick(Point pt, int widget, int click_count) override
+	{
+		switch (widget) {
+			case WID_SCG_ENABLE_CARGOES:
+				/* Remove all cargoes from the excluded lists. */
+				legend_excluded_cargo = 0;
+				this->excluded_data = 0;
+				this->SetDirty();
+				break;
+
+			case WID_SCG_DISABLE_CARGOES: {
+				/* Add all cargoes to the excluded lists. */
+				int i = 0;
+				const CargoSpec *cs;
+				FOR_ALL_SORTED_STANDARD_CARGOSPECS(cs) {
+					SetBit(legend_excluded_cargo, cs->Index());
+					SetBit(this->excluded_data, i);
+					i++;
+				}
+				this->SetDirty();
+				break;
+			}
+
+			case WID_SCG_MATRIX: {
+				uint row = this->vscroll->GetScrolledRowFromWidget(pt.y, this, WID_SCG_MATRIX);
+				if (row >= this->vscroll->GetCount()) return;
+
+				const CargoSpec *cs;
+				FOR_ALL_SORTED_STANDARD_CARGOSPECS(cs) {
+					if (row-- > 0) continue;
+
+					ToggleBit(legend_excluded_cargo, cs->Index());
+					this->UpdateExcludedData();
+					this->SetDirty();
+					break;
+				}
+				break;
+			}
+		}
+	}
+
+	void OnResize() override
+	{
+		this->vscroll->SetCapacityFromWidget(this, WID_SCG_MATRIX);
+	}
+
+	void OnGameTick() override
+	{
+		/* Override default OnGameTick */
+	}
+
+	/**
+	* 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.
+	*/
+	void OnInvalidateData(int data = 0, bool gui_scope = true) override
+	{
+		if (!gui_scope) return;
+		this->OnHundredthTick();
+	}
+
+	void OnHundredthTick() override
+	{
+		this->UpdateExcludedData();
+
+		const Station* station = Station::GetIfValid(this->station_id);
+
+		if (station == nullptr) return;
+
+		uint8 i = 0;
+		const CargoSpec *cs;
+		FOR_ALL_SORTED_STANDARD_CARGOSPECS(cs) {
+			this->colours[i] = cs->legend_colour;
+
+			for (uint j = 0; j < MAX_STATION_CARGO_HISTORY_DAYS; j++) {
+				
+				this->cost[i][j] = station->station_cargo_history[cs->Index() * MAX_STATION_CARGO_HISTORY_DAYS + j] * STATION_CARGO_HISTORY_FACTOR;
+			}
+			i++;
+		}
+
+		this->num_dataset = i;
+
+		this->SetDirty();
+	}
+};
+
+
+static const NWidgetPart _nested_station_cargo_widgets[] = {
+	NWidget(NWID_HORIZONTAL),
+		NWidget(WWT_CLOSEBOX, COLOUR_GREY),
+		NWidget(WWT_CAPTION, COLOUR_GREY, WID_SCG_CAPTION), SetDataTip(STR_GRAPH_STATION_CARGO_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
+		NWidget(WWT_SHADEBOX, COLOUR_GREY),
+		NWidget(WWT_DEFSIZEBOX, COLOUR_GREY),
+		NWidget(WWT_STICKYBOX, COLOUR_GREY),
+	EndContainer(),
+	NWidget(WWT_PANEL, COLOUR_GREY, WID_SCG_BACKGROUND), SetMinimalSize(568, 128),
+		NWidget(NWID_HORIZONTAL),
+			NWidget(NWID_SPACER), SetFill(1, 0), SetResize(1, 0),
+			NWidget(WWT_TEXT, COLOUR_GREY, WID_SCG_HEADER), SetMinimalSize(0, 6), SetPadding(2, 0, 2, 0), SetDataTip(STR_GRAPH_STATION_CARGO_TITLE, STR_NULL),
+			NWidget(NWID_SPACER), SetFill(1, 0), SetResize(1, 0),
+		EndContainer(),
+		NWidget(NWID_HORIZONTAL),
+			NWidget(WWT_EMPTY, COLOUR_GREY, WID_SCG_GRAPH), SetMinimalSize(495, 0), SetFill(1, 1), SetResize(1, 1),
+			NWidget(NWID_VERTICAL),
+				NWidget(NWID_SPACER), SetMinimalSize(0, 24), SetFill(0, 0), SetResize(0, 1),
+				NWidget(WWT_PUSHTXTBTN, COLOUR_ORANGE, WID_SCG_ENABLE_CARGOES), SetDataTip(STR_GRAPH_CARGO_ENABLE_ALL, STR_GRAPH_CARGO_TOOLTIP_ENABLE_ALL), SetFill(1, 0),
+				NWidget(WWT_PUSHTXTBTN, COLOUR_ORANGE, WID_SCG_DISABLE_CARGOES), SetDataTip(STR_GRAPH_CARGO_DISABLE_ALL, STR_GRAPH_CARGO_TOOLTIP_DISABLE_ALL), SetFill(1, 0),
+				NWidget(NWID_SPACER), SetMinimalSize(0, 4),
+				NWidget(NWID_HORIZONTAL),
+					NWidget(WWT_MATRIX, COLOUR_BROWN, WID_SCG_MATRIX), SetResize(0, 2), SetMatrixDataTip(1, 0, STR_GRAPH_CARGO_PAYMENT_TOGGLE_CARGO), SetScrollbar(WID_SCG_MATRIX_SCROLLBAR),
+					NWidget(NWID_VSCROLLBAR, COLOUR_BROWN, WID_SCG_MATRIX_SCROLLBAR),
+				EndContainer(),
+				NWidget(NWID_SPACER), SetMinimalSize(0, 24), SetFill(0, 1), SetResize(0, 1),
+			EndContainer(),
+			NWidget(NWID_SPACER), SetMinimalSize(5, 0), SetFill(0, 1), SetResize(0, 1),
+		EndContainer(),
+		NWidget(NWID_HORIZONTAL),
+			NWidget(NWID_SPACER), SetMinimalSize(WD_RESIZEBOX_WIDTH, 0), SetFill(1, 0), SetResize(1, 0),
+			NWidget(WWT_TEXT, COLOUR_GREY, WID_SCG_FOOTER), SetMinimalSize(0, 6), SetPadding(2, 0, 2, 0), SetDataTip(STR_GRAPH_STATION_CARGO_X_LABEL, STR_NULL),
+			NWidget(NWID_SPACER), SetFill(1, 0), SetResize(1, 0),
+			NWidget(WWT_RESIZEBOX, COLOUR_GREY, WID_SCG_RESIZE),
+		EndContainer(),
+	EndContainer(),
+};
+
+static WindowDesc _station_cargo_desc(
+	WDP_AUTO, "graph_station_cargo", 0, 0,
+	WC_STATION_CARGO, WC_NONE,
+	0,
+	_nested_station_cargo_widgets, lengthof(_nested_station_cargo_widgets)
+);
+
+
+void ShowStationCargo(StationID station_id)
+{
+	AllocateWindowDescFront<StationCargoGraphWindow>(&_station_cargo_desc, station_id);
+}
+

src/graph_gui.h

@@ -12,6 +12,8 @@
 
 extern uint8 _cargo_payment_x_mode;
 
+typedef uint16 StationID;
+
 void ShowOperatingProfitGraph();
 void ShowIncomeGraph();
 void ShowDeliveredCargoGraph();
@@ -20,5 +22,6 @@ void ShowCompanyValueGraph();
 void ShowCargoPaymentRates();
 void ShowCompanyLeagueTable();
 void ShowPerformanceRatingDetail();
+void ShowStationCargo(StationID);
 
 #endif /* GRAPH_GUI_H */

src/lang/english.txt

@@ -613,6 +613,10 @@ STR_GRAPH_CARGO_TOOLTIP_DISABLE_ALL                             :{BLACK}Display
 STR_GRAPH_CARGO_PAYMENT_TOGGLE_CARGO                            :{BLACK}Toggle graph for cargo type on/off
 STR_GRAPH_CARGO_PAYMENT_CARGO                                   :{TINY_FONT}{BLACK}{STRING}
 
+STR_GRAPH_STATION_CARGO_CAPTION                                 :{WHITE}{STATION} - Waiting Cargo History
+STR_GRAPH_STATION_CARGO_X_LABEL                                 :{TINY_FONT}{BLACK}Development over the last 48 days
+STR_GRAPH_STATION_CARGO_TITLE                                   :{TINY_FONT}{BLACK}Units of cargo waiting at the station
+
 STR_GRAPH_CARGO_DAYS_MODE                                       :{TINY_FONT}{BLACK}Days in transit
 STR_GRAPH_CARGO_SPEED_MODE                                      :{TINY_FONT}{BLACK}Average speed
 STR_GRAPH_CARGO_TOOLTIP_DAYS_MODE                               :{BLACK}Display days in transit on the x-axis of the graph
@@ -4181,6 +4185,9 @@ STR_STATION_VIEW_GROUP_D_V_S                                    :Destination-Via
 STR_STATION_VIEW_DEPARTURES_BUTTON                              :{BLACK}Departures
 STR_STATION_VIEW_DEPARTURES_TOOLTIP                             :{BLACK}Show list of scheduled departures
 
+STR_STATION_VIEW_HISTORY_BUTTON                                 :{BLACK}History
+STR_STATION_VIEW_HISTORY_TOOLTIP                                :{BLACK}Show waiting cargo history
+
 ############ range for rating starts
 STR_CARGO_RATING_APPALLING                                      :Appalling
 STR_CARGO_RATING_VERY_POOR                                      :Very Poor

src/saveload/station_sl.cpp

@@ -459,6 +459,7 @@ static const SaveLoad _station_desc[] = {
 	  SLE_CONDVAR(Station, always_accepted,            SLE_FILE_U32 | SLE_VAR_U64, SLV_127, SLV_EXTEND_CARGOTYPES),
 	  SLE_CONDVAR(Station, always_accepted,            SLE_UINT64,                 SLV_EXTEND_CARGOTYPES, SL_MAX_VERSION),
 	  SLE_CONDNULL_X(32 * 24, SL_MIN_VERSION, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XSLFI_JOKERPP, SL_JOKER_1_22)),
+	  SLE_CONDARR(Station, station_cargo_history,      SLE_UINT8, NUM_CARGO * MAX_STATION_CARGO_HISTORY_DAYS, SL_JOKER_1_22, SL_MAX_VERSION),
 
 	      SLE_END()
 };

src/station.cpp

@@ -62,6 +62,7 @@ BaseStation::~BaseStation()
 	DeleteWindowById(WC_SHIPS_LIST,    VehicleListIdentifier(VL_STATION_LIST, VEH_SHIP,     this->owner, this->index).Pack());
 	DeleteWindowById(WC_AIRCRAFT_LIST, VehicleListIdentifier(VL_STATION_LIST, VEH_AIRCRAFT, this->owner, this->index).Pack());
 	DeleteWindowById(WC_DEPARTURES_BOARD, this->index);
+	DeleteWindowById(WC_STATION_CARGO, this->index);
 
 	if (HasBit(_display_opt, Station::IsExpected(this) ? DO_SHOW_STATION_NAMES : DO_SHOW_WAYPOINT_NAMES) &&
 			!(_local_company != this->owner && this->owner != OWNER_NONE && !HasBit(_display_opt, DO_SHOW_COMPETITOR_SIGNS))) {
@@ -76,7 +77,8 @@ Station::Station(TileIndex tile) :
 	ship_station(INVALID_TILE, 0, 0),
 	indtype(IT_INVALID),
 	time_since_load(255),
-	time_since_unload(255)
+	time_since_unload(255),
+	station_cargo_history{}
 {
 	/* this->random_bits is set in Station::AddFacility() */
 }

src/station_base.h

@@ -808,6 +808,8 @@ public:
 	IndustryList industries_near; ///< Cached list of industries near the station that can accept cargo, @see DeliverGoodsToIndustry()
 	Industry *industry;           ///< NOSAVE: Associated industry for neutral stations. (Rebuilt on load from Industry->st)
 
+	uint8 station_cargo_history[NUM_CARGO * MAX_STATION_CARGO_HISTORY_DAYS]; ///< Station history of waiting cargo.
+
 	Station(TileIndex tile = INVALID_TILE);
 	~Station();
 
@@ -817,6 +819,8 @@ public:
 
 	void UpdateVirtCoord() override;
 
+	void UpdateCargoHistory();
+
 	void MoveSign(TileIndex new_xy) override;
 
 	void AfterStationTileSetChange(bool adding, StationType type);

src/station_cmd.cpp

@@ -404,6 +404,23 @@ void Station::GetTileArea(TileArea *ta, StationType type) const
 	}
 }
 
+/**
+ * Update the cargo history.
+ */
+void Station::UpdateCargoHistory()
+{
+	const CargoSpec* cs;
+	FOR_ALL_SORTED_STANDARD_CARGOSPECS(cs) {
+		auto amount = this->goods[cs->Index()].cargo.AvailableCount();
+
+		std::rotate(std::begin(this->station_cargo_history) + cs->Index() * MAX_STATION_CARGO_HISTORY_DAYS,
+					std::begin(this->station_cargo_history) + cs->Index() * MAX_STATION_CARGO_HISTORY_DAYS + 1,
+					std::begin(this->station_cargo_history) + (cs->Index() + 1) * MAX_STATION_CARGO_HISTORY_DAYS);
+
+		this->station_cargo_history[(cs->Index() + 1) * MAX_STATION_CARGO_HISTORY_DAYS - 1] = std::clamp(amount / STATION_CARGO_HISTORY_FACTOR, (uint)0, (uint)UINT8_MAX);
+	}
+}
+
 /**
  * Update the virtual coords needed to draw the station sign.
  */
@@ -4240,6 +4257,17 @@ void OnTick_Station()
 	}
 }
 
+/** Daily loop for stations. */
+void StationDailyLoop()
+{
+	// Only record cargo history every second day.
+	if (_date % 2 != 0) {
+		for (Station *st : Station::Iterate()) {
+			st->UpdateCargoHistory();
+		}
+	}
+}
+
 /** Monthly loop for stations. */
 void StationMonthlyLoop()
 {

src/station_gui.cpp

@@ -32,6 +32,7 @@
 #include "linkgraph/linkgraph.h"
 #include "zoom_func.h"
 #include "departures_gui.h"
+#include "graph_gui.h"
 #include "zoning.h"
 #include "newgrf_debug.h"
 
@@ -831,6 +832,8 @@ static const NWidgetPart _nested_station_view_widgets[] = {
 	NWidget(NWID_HORIZONTAL, NC_EQUALSIZE),
 		NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_SV_ACCEPTS_RATINGS), SetMinimalSize(46, 12), SetResize(1, 0), SetFill(1, 1),
 				SetDataTip(STR_STATION_VIEW_RATINGS_BUTTON, STR_STATION_VIEW_RATINGS_TOOLTIP),
+		NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_SV_HISTORY), SetMinimalSize(60, 12), SetResize(1, 0), SetFill(1, 1),
+				SetDataTip(STR_STATION_VIEW_HISTORY_BUTTON, STR_STATION_VIEW_HISTORY_TOOLTIP),
 		NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_SV_DEPARTURES), SetMinimalSize(46, 12), SetResize(1, 0), SetFill(1, 1),
 				SetDataTip(STR_STATION_VIEW_DEPARTURES_BUTTON, STR_STATION_VIEW_DEPARTURES_TOOLTIP),
 		NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_SV_CLOSE_AIRPORT), SetMinimalSize(45, 12), SetResize(1, 0), SetFill(1, 1),
@@ -2052,6 +2055,11 @@ struct StationViewWindow : public Window {
 				break;
 			}
 
+			case WID_SV_HISTORY: {
+				ShowStationCargo((StationID)this->window_number);
+				break;
+			}
+
 			case WID_SV_DEPARTURES: {
 				ShowStationDepartures((StationID)this->window_number);
 				break;

src/station_type.h

@@ -27,6 +27,9 @@ struct Waypoint;
 static const StationID NEW_STATION = 0xFFFE;
 static const StationID INVALID_STATION = 0xFFFF;
 
+static const uint MAX_STATION_CARGO_HISTORY_DAYS = 24;
+static const uint STATION_CARGO_HISTORY_FACTOR = 25;
+
 typedef SmallStack<StationID, StationID, INVALID_STATION, 8, 0xFFFD> StationIDStack;
 
 /** Station types */

src/widgets/graph_widget.h

@@ -53,6 +53,20 @@ enum CargoPaymentRatesWidgets {
 	WID_CPR_SPEED,           ///< Speed mode.
 };
 
+/** Widget of the #StationCargoGraphWindow class. */
+enum StationCargoWidgets {
+	WID_SCG_CAPTION,          ///< Window title
+	WID_SCG_BACKGROUND,       ///< Background of the window.
+	WID_SCG_HEADER,           ///< Header.
+	WID_SCG_GRAPH,            ///< Graph itself.
+	WID_SCG_RESIZE,           ///< Resize button.
+	WID_SCG_FOOTER,           ///< Footer.
+	WID_SCG_ENABLE_CARGOES,   ///< Enable cargoes button.
+	WID_SCG_DISABLE_CARGOES,  ///< Disable cargoes button.
+	WID_SCG_MATRIX,           ///< Cargo list.
+	WID_SCG_MATRIX_SCROLLBAR, ///< Cargo list scrollbar.
+};
+
 /** Widget of the #CompanyLeagueWindow class. */
 enum CompanyLeagueWidgets {
 	WID_CL_BACKGROUND, ///< Background of the window.

src/widgets/station_widget.h

@@ -30,6 +30,7 @@ enum StationViewWidgets {
 	WID_SV_PLANES,             ///< List of scheduled planes button.
 	WID_SV_CATCHMENT,          ///< Toggle catchment area highlight.
 	WID_SV_DEPARTURES,         ///< Departures button.
+	WID_SV_HISTORY,            ///< Cargo history button.
 };
 
 /** Widgets of the #CompanyStationsWindow class. */

src/window_type.h

@@ -581,6 +581,12 @@ enum WindowClass {
 	 */
 	WC_PAYMENT_RATES,
 
+	/**
+	* Station cargo graph; %Window numbers:
+	*   - #StationID = #StationCargoWidgets
+	*/
+	WC_STATION_CARGO,
+
 	/**
 	 * Performance detail window; %Window numbers:
 	 *   - 0 = #PerformanceRatingDetailsWidgets