# HG changeset patch
# User michi_cc <michi_cc@openttd.org>
# Date 2012-12-23 01:00:25
# Node ID a1593074c6b8f66d480c94c678411ff0ce27894f
# Parent  22e7337f8afa4bf79b024cf221e578ac2829a861

(svn r24839) -Feature [FS#5271]: [NewGRF] Support oversized purchase list sprites. (Based on patch by Eddi)

diff --git a/src/aircraft.h b/src/aircraft.h
--- a/src/aircraft.h
+++ b/src/aircraft.h
@@ -32,7 +32,7 @@ enum VehicleAirFlags {
 
 
 void HandleAircraftEnterHangar(Aircraft *v);
-void GetAircraftSpriteSize(EngineID engine, uint &width, uint &height, EngineImageType image_type);
+void GetAircraftSpriteSize(EngineID engine, uint &width, uint &height, int &xoffs, int &yoffs, EngineImageType image_type);
 void UpdateAirplanesOnNewStation(const Station *st);
 void UpdateAircraftCache(Aircraft *v, bool update_range = false);
 
diff --git a/src/aircraft_cmd.cpp b/src/aircraft_cmd.cpp
--- a/src/aircraft_cmd.cpp
+++ b/src/aircraft_cmd.cpp
@@ -202,17 +202,22 @@ void DrawAircraftEngine(int left, int ri
 }
 
 /**
- * Get the size of the sprite of an aircraft sprite heading west (used for lists)
- * @param engine The engine to get the sprite from
- * @param width The width of the sprite
- * @param height The height of the sprite
+ * Get the size of the sprite of an aircraft sprite heading west (used for lists).
+ * @param engine The engine to get the sprite from.
+ * @param[out] width The width of the sprite.
+ * @param[out] height The height of the sprite.
+ * @param[out] xoffs Number of pixels to shift the sprite to the right.
+ * @param[out] yoffs Number of pixels to shift the sprite downwards.
+ * @param image_type Context the sprite is used in.
  */
-void GetAircraftSpriteSize(EngineID engine, uint &width, uint &height, EngineImageType image_type)
+void GetAircraftSpriteSize(EngineID engine, uint &width, uint &height, int &xoffs, int &yoffs, EngineImageType image_type)
 {
 	const Sprite *spr = GetSprite(GetAircraftIcon(engine, image_type), ST_NORMAL);
 
 	width  = UnScaleByZoom(spr->width, ZOOM_LVL_GUI);
 	height = UnScaleByZoom(spr->height, ZOOM_LVL_GUI);
+	xoffs  = UnScaleByZoom(spr->x_offs, ZOOM_LVL_GUI);
+	yoffs  = UnScaleByZoom(spr->y_offs, ZOOM_LVL_GUI);
 }
 
 /**
diff --git a/src/build_vehicle_gui.cpp b/src/build_vehicle_gui.cpp
--- a/src/build_vehicle_gui.cpp
+++ b/src/build_vehicle_gui.cpp
@@ -43,7 +43,7 @@
  */
 uint GetEngineListHeight(VehicleType type)
 {
-	return max<uint>(FONT_HEIGHT_NORMAL + WD_MATRIX_TOP + WD_MATRIX_BOTTOM, GetVehicleHeight(type));
+	return max<uint>(FONT_HEIGHT_NORMAL + WD_MATRIX_TOP + WD_MATRIX_BOTTOM, GetVehicleImageCellSize(type, EIT_PURCHASE).height);
 }
 
 static const NWidgetPart _nested_build_vehicle_widgets[] = {
@@ -871,19 +871,18 @@ int DrawVehiclePurchaseInfo(int left, in
  */
 void DrawEngineList(VehicleType type, int l, int r, int y, const GUIEngineList *eng_list, uint16 min, uint16 max, EngineID selected_id, bool show_count, GroupID selected_group)
 {
-	static const int sprite_widths[]  = { 60, 60, 76, 67 };
 	static const int sprite_y_offsets[] = { -1, -1, -2, -2 };
 
 	/* Obligatory sanity checks! */
-	assert((uint)type < lengthof(sprite_widths));
-	assert_compile(lengthof(sprite_y_offsets) == lengthof(sprite_widths));
 	assert(max <= eng_list->Length());
 
 	bool rtl = _current_text_dir == TD_RTL;
 	int step_size = GetEngineListHeight(type);
-	int sprite_width = sprite_widths[type];
+	int sprite_left  = GetVehicleImageCellSize(type, EIT_PURCHASE).extend_left;
+	int sprite_right = GetVehicleImageCellSize(type, EIT_PURCHASE).extend_right;
+	int sprite_width = sprite_left + sprite_right;
 
-	int sprite_x        = (rtl ? r - sprite_width / 2 : l + sprite_width / 2) - 1;
+	int sprite_x        = rtl ? r - sprite_right - 1 : l + sprite_left + 1;
 	int sprite_y_offset = sprite_y_offsets[type] + step_size / 2;
 
 	Dimension replace_icon = {0, 0};
@@ -894,8 +893,8 @@ void DrawEngineList(VehicleType type, in
 		count_width = GetStringBoundingBox(STR_TINY_BLACK_COMA).width;
 	}
 
-	int text_left  = l + (rtl ? WD_FRAMERECT_LEFT + replace_icon.width + 8 + count_width : sprite_width);
-	int text_right = r - (rtl ? sprite_width : WD_FRAMERECT_RIGHT + replace_icon.width + 8 + count_width);
+	int text_left  = l + (rtl ? WD_FRAMERECT_LEFT + replace_icon.width + 8 + count_width : sprite_width + WD_FRAMETEXT_LEFT);
+	int text_right = r - (rtl ? sprite_width + WD_FRAMETEXT_RIGHT : WD_FRAMERECT_RIGHT + replace_icon.width + 8 + count_width);
 	int replace_icon_left = rtl ? l + WD_FRAMERECT_LEFT : r - WD_FRAMERECT_RIGHT - replace_icon.width;
 	int count_left = l;
 	int count_right = rtl ? text_left : r - WD_FRAMERECT_RIGHT - replace_icon.width - 8;
@@ -910,7 +909,7 @@ void DrawEngineList(VehicleType type, in
 		const uint num_engines = GetGroupNumEngines(_local_company, selected_group, engine);
 
 		SetDParam(0, engine);
-		DrawString(text_left, text_right, y + normal_text_y_offset, STR_ENGINE_NAME, engine == selected_id ? TC_WHITE : TC_BLACK);
+		DrawString(text_left, text_right, y + normal_text_y_offset, STR_ENGINE_NAME, engine == selected_id ? TC_WHITE : TC_BLACK, SA_STRIP | (rtl ? SA_RIGHT : SA_LEFT));
 		DrawVehicleEngine(l, r, sprite_x, y + sprite_y_offset, engine, (show_count && num_engines == 0) ? PALETTE_CRASH : GetEnginePalette(engine, _local_company), EIT_PURCHASE);
 		if (show_count) {
 			SetDParam(0, num_engines);
diff --git a/src/depot_gui.cpp b/src/depot_gui.cpp
--- a/src/depot_gui.cpp
+++ b/src/depot_gui.cpp
@@ -11,6 +11,7 @@
 
 #include "stdafx.h"
 #include "train.h"
+#include "roadveh.h"
 #include "ship.h"
 #include "aircraft.h"
 #include "gui.h"
@@ -141,41 +142,63 @@ static void TrainDepotMoveVehicle(const 
 	DoCommandP(v->tile, v->index | (_ctrl_pressed ? 1 : 0) << 20, wagon == NULL ? INVALID_VEHICLE : wagon->index, CMD_MOVE_RAIL_VEHICLE | CMD_MSG(STR_ERROR_CAN_T_MOVE_VEHICLE));
 }
 
+static VehicleCellSize _base_block_sizes_depot[VEH_COMPANY_END];    ///< Cell size for vehicle images in the depot view.
+static VehicleCellSize _base_block_sizes_purchase[VEH_COMPANY_END]; ///< Cell size for vehicle images in the purchase list.
+
 /**
- * Array containing the cell size in pixels of the #WID_D_MATRIX widget for each vehicle type.
- * @note The train vehicle type uses the entire row for each train.
+ * Get the GUI cell size for a vehicle image.
+ * @param type Vehicle type to get the size for.
+ * @param image_type Image type to get size for.
+ * @pre image_type == EIT_IN_DEPOT || image_type == EIT_PURCHASE
+ * @return Cell dimensions for the vehicle and image type.
  */
-static Dimension _base_block_sizes[4];
+VehicleCellSize GetVehicleImageCellSize(VehicleType type, EngineImageType image_type)
+{
+	switch (image_type) {
+		case EIT_IN_DEPOT: return _base_block_sizes_depot[type];
+		case EIT_PURCHASE: return _base_block_sizes_purchase[type];
+		default: NOT_REACHED();
+	}
+}
 
-static void InitBlocksizeForShipAircraft(VehicleType type)
+static void InitBlocksizeForVehicles(VehicleType type, EngineImageType image_type)
 {
-	uint max_width  = 0;
+	int max_extend_left  = 0;
+	int max_extend_right = 0;
 	uint max_height = 0;
 
 	const Engine *e;
 	FOR_ALL_ENGINES_OF_TYPE(e, type) {
 		EngineID eid = e->index;
 		uint x, y;
+		int x_offs, y_offs;
 
 		switch (type) {
 			default: NOT_REACHED();
-			case VEH_SHIP:     GetShipSpriteSize(    eid, x, y, EIT_IN_DEPOT); break;
-			case VEH_AIRCRAFT: GetAircraftSpriteSize(eid, x, y, EIT_IN_DEPOT); break;
+			case VEH_TRAIN:    GetTrainSpriteSize(   eid, x, y, x_offs, y_offs, image_type); break;
+			case VEH_ROAD:     GetRoadVehSpriteSize( eid, x, y, x_offs, y_offs, image_type); break;
+			case VEH_SHIP:     GetShipSpriteSize(    eid, x, y, x_offs, y_offs, image_type); break;
+			case VEH_AIRCRAFT: GetAircraftSpriteSize(eid, x, y, x_offs, y_offs, image_type); break;
 		}
-		if (x > max_width)  max_width  = x;
 		if (y > max_height) max_height = y;
+		if (-x_offs > max_extend_left) max_extend_left = -x_offs;
+		if ((int)x + x_offs > max_extend_right) max_extend_right = x + x_offs;
 	}
 
-	switch (type) {
-		default: NOT_REACHED();
-		case VEH_SHIP:
-			_base_block_sizes[VEH_SHIP].width = max(76U, max_width);
+	switch (image_type) {
+		case EIT_IN_DEPOT:
+			_base_block_sizes_depot[type].height       = max(GetVehicleHeight(type), max_height);
+			_base_block_sizes_depot[type].extend_left  = Clamp(max_extend_left, 16, 98);
+			_base_block_sizes_depot[type].extend_right = Clamp(max_extend_right, 16, 98);
 			break;
-		case VEH_AIRCRAFT:
-			_base_block_sizes[VEH_AIRCRAFT].width = max(67U, max_width);
+		case EIT_PURCHASE:
+			_base_block_sizes_purchase[type].height       = max(GetVehicleHeight(type), max_height);
+			_base_block_sizes_purchase[type].extend_left  = Clamp(max_extend_left, 16, 98);
+			_base_block_sizes_purchase[type].extend_right = Clamp(max_extend_right, 16, 98);
 			break;
+
+		default: NOT_REACHED();
 	}
-	_base_block_sizes[type].height = max(GetVehicleHeight(type), max_height);
 }
 
 /**
@@ -184,14 +207,10 @@ static void InitBlocksizeForShipAircraft
  */
 void InitDepotWindowBlockSizes()
 {
-	_base_block_sizes[VEH_TRAIN].width = 0;
-	_base_block_sizes[VEH_TRAIN].height = GetVehicleHeight(VEH_TRAIN);
-
-	_base_block_sizes[VEH_ROAD].width = 32;
-	_base_block_sizes[VEH_ROAD].height = GetVehicleHeight(VEH_ROAD);
-
-	InitBlocksizeForShipAircraft(VEH_SHIP);
-	InitBlocksizeForShipAircraft(VEH_AIRCRAFT);
+	for (VehicleType vt = VEH_BEGIN; vt < VEH_COMPANY_END; vt++) {
+		InitBlocksizeForVehicles(vt, EIT_IN_DEPOT);
+		InitBlocksizeForVehicles(vt, EIT_PURCHASE);
+	}
 }
 
 static void DepotSellAllConfirmationCallback(Window *w, bool confirmed);
@@ -600,13 +619,13 @@ struct DepotWindow : Window {
 				}
 				int base_width = this->count_width + this->header_width;
 
-				resize->height = max(_base_block_sizes[this->type].height, min_height);
+				resize->height = max<uint>(GetVehicleImageCellSize(this->type, EIT_IN_DEPOT).height, min_height);
 				if (this->type == VEH_TRAIN) {
 					resize->width = 1;
 					size->width = base_width + 2 * 29; // about 2 parts
 					size->height = resize->height * 6;
 				} else {
-					resize->width = base_width + _base_block_sizes[this->type].width;
+					resize->width = base_width + GetVehicleImageCellSize(this->type, EIT_IN_DEPOT).extend_left + GetVehicleImageCellSize(this->type, EIT_IN_DEPOT).extend_right;
 					size->width = resize->width * (this->type == VEH_ROAD ? 5 : 3);
 					size->height = resize->height * (this->type == VEH_ROAD ? 5 : 3);
 				}
diff --git a/src/roadveh.h b/src/roadveh.h
--- a/src/roadveh.h
+++ b/src/roadveh.h
@@ -80,6 +80,7 @@ static const uint RVC_DEPOT_STOP_FRAME  
 static const byte RV_OVERTAKE_TIMEOUT = 35;
 
 void RoadVehUpdateCache(RoadVehicle *v, bool same_length = false);
+void GetRoadVehSpriteSize(EngineID engine, uint &width, uint &height, int &xoffs, int &yoffs, EngineImageType image_type);
 
 /**
  * Buses, trucks and trams belong to this class.
diff --git a/src/roadveh_cmd.cpp b/src/roadveh_cmd.cpp
--- a/src/roadveh_cmd.cpp
+++ b/src/roadveh_cmd.cpp
@@ -156,6 +156,25 @@ void DrawRoadVehEngine(int left, int rig
 }
 
 /**
+ * Get the size of the sprite of a road vehicle sprite heading west (used for lists).
+ * @param engine The engine to get the sprite from.
+ * @param[out] width The width of the sprite.
+ * @param[out] height The height of the sprite.
+ * @param[out] xoffs Number of pixels to shift the sprite to the right.
+ * @param[out] yoffs Number of pixels to shift the sprite downwards.
+ * @param image_type Context the sprite is used in.
+ */
+void GetRoadVehSpriteSize(EngineID engine, uint &width, uint &height, int &xoffs, int &yoffs, EngineImageType image_type)
+{
+	const Sprite *spr = GetSprite(GetRoadVehIcon(engine, image_type), ST_NORMAL);
+
+	width  = UnScaleByZoom(spr->width, ZOOM_LVL_GUI);
+	height = UnScaleByZoom(spr->height, ZOOM_LVL_GUI);
+	xoffs  = UnScaleByZoom(spr->x_offs, ZOOM_LVL_GUI);
+	yoffs  = UnScaleByZoom(spr->y_offs, ZOOM_LVL_GUI);
+}
+
+/**
  * Get length of a road vehicle.
  * @param v Road vehicle to query length.
  * @return Length of the given road vehicle.
diff --git a/src/ship.h b/src/ship.h
--- a/src/ship.h
+++ b/src/ship.h
@@ -15,7 +15,7 @@
 #include "vehicle_base.h"
 #include "water_map.h"
 
-void GetShipSpriteSize(EngineID engine, uint &width, uint &height, EngineImageType image_type);
+void GetShipSpriteSize(EngineID engine, uint &width, uint &height, int &xoffs, int &yoffs, EngineImageType image_type);
 WaterClass GetEffectiveWaterClass(TileIndex tile);
 
 /**
diff --git a/src/ship_cmd.cpp b/src/ship_cmd.cpp
--- a/src/ship_cmd.cpp
+++ b/src/ship_cmd.cpp
@@ -86,17 +86,22 @@ void DrawShipEngine(int left, int right,
 }
 
 /**
- * Get the size of the sprite of a ship sprite heading west (used for lists)
- * @param engine The engine to get the sprite from
- * @param width The width of the sprite
- * @param height The height of the sprite
+ * Get the size of the sprite of a ship sprite heading west (used for lists).
+ * @param engine The engine to get the sprite from.
+ * @param[out] width The width of the sprite.
+ * @param[out] height The height of the sprite.
+ * @param[out] xoffs Number of pixels to shift the sprite to the right.
+ * @param[out] yoffs Number of pixels to shift the sprite downwards.
+ * @param image_type Context the sprite is used in.
  */
-void GetShipSpriteSize(EngineID engine, uint &width, uint &height, EngineImageType image_type)
+void GetShipSpriteSize(EngineID engine, uint &width, uint &height, int &xoffs, int &yoffs, EngineImageType image_type)
 {
 	const Sprite *spr = GetSprite(GetShipIcon(engine, image_type), ST_NORMAL);
 
 	width  = UnScaleByZoom(spr->width, ZOOM_LVL_GUI);
 	height = UnScaleByZoom(spr->height, ZOOM_LVL_GUI);
+	xoffs  = UnScaleByZoom(spr->x_offs, ZOOM_LVL_GUI);
+	yoffs  = UnScaleByZoom(spr->y_offs, ZOOM_LVL_GUI);
 }
 
 SpriteID Ship::GetImage(Direction direction, EngineImageType image_type) const
diff --git a/src/train.h b/src/train.h
--- a/src/train.h
+++ b/src/train.h
@@ -50,6 +50,8 @@ bool TryPathReserve(Train *v, bool mark_
 
 int GetTrainStopLocation(StationID station_id, TileIndex tile, const Train *v, int *station_ahead, int *station_length);
 
+void GetTrainSpriteSize(EngineID engine, uint &width, uint &height, int &xoffs, int &yoffs, EngineImageType image_type);
+
 /** Variables that are cached to improve performance and such */
 struct TrainCache {
 	/* Cached wagon override spritegroup */
diff --git a/src/train_cmd.cpp b/src/train_cmd.cpp
--- a/src/train_cmd.cpp
+++ b/src/train_cmd.cpp
@@ -528,6 +528,39 @@ void DrawTrainEngine(int left, int right
 }
 
 /**
+ * Get the size of the sprite of a train sprite heading west, or both heads (used for lists).
+ * @param engine The engine to get the sprite from.
+ * @param[out] width The width of the sprite.
+ * @param[out] height The height of the sprite.
+ * @param[out] xoffs Number of pixels to shift the sprite to the right.
+ * @param[out] yoffs Number of pixels to shift the sprite downwards.
+ * @param image_type Context the sprite is used in.
+ */
+void GetTrainSpriteSize(EngineID engine, uint &width, uint &height, int &xoffs, int &yoffs, EngineImageType image_type)
+{
+	int y = 0;
+
+	SpriteID sprite = GetRailIcon(engine, false, y, image_type);
+	const Sprite *real_sprite = GetSprite(sprite, ST_NORMAL);
+
+	width  = UnScaleByZoom(real_sprite->width, ZOOM_LVL_GUI);
+	height = UnScaleByZoom(real_sprite->height, ZOOM_LVL_GUI);
+	xoffs  = UnScaleByZoom(real_sprite->x_offs, ZOOM_LVL_GUI);
+	yoffs  = UnScaleByZoom(real_sprite->y_offs, ZOOM_LVL_GUI);
+
+	if (RailVehInfo(engine)->railveh_type == RAILVEH_MULTIHEAD) {
+		sprite = GetRailIcon(engine, true, y, image_type);
+		real_sprite = GetSprite(sprite, ST_NORMAL);
+
+		/* Calculate values relative to an imaginary center between the two sprites. */
+		width = TRAININFO_DEFAULT_VEHICLE_WIDTH + UnScaleByZoom(real_sprite->width, ZOOM_LVL_GUI) + UnScaleByZoom(real_sprite->x_offs, ZOOM_LVL_GUI) - xoffs;
+		height = max<uint>(height, UnScaleByZoom(real_sprite->height, ZOOM_LVL_GUI));
+		xoffs  = xoffs - TRAININFO_DEFAULT_VEHICLE_WIDTH / 2;
+		yoffs  = min(yoffs, UnScaleByZoom(real_sprite->y_offs, ZOOM_LVL_GUI));
+	}
+}
+
+/**
  * Build a railroad wagon.
  * @param tile     tile of the depot where rail-vehicle is built.
  * @param flags    type of operation.
diff --git a/src/vehicle_gui.h b/src/vehicle_gui.h
--- a/src/vehicle_gui.h
+++ b/src/vehicle_gui.h
@@ -66,6 +66,15 @@ static inline uint GetVehicleHeight(Vehi
 
 int GetVehicleWidth(Vehicle *v, EngineImageType image_type);
 
+/** Dimensions of a cell in the purchase/depot windows. */
+struct VehicleCellSize {
+	uint height;       ///< Vehicle cell height.
+	uint extend_left;  ///< Extend of the cell to the left.
+	uint extend_right; ///< Extend of the cell to the right.
+};
+
+VehicleCellSize GetVehicleImageCellSize(VehicleType type, EngineImageType image_type);
+
 /**
  * Get WindowClass for vehicle list of given vehicle type
  * @param vt vehicle type to check