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/* $Id$ */

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/** @file engine_gui.cpp */

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#include "stdafx.h"

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#include "openttd.h"

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#include "table/strings.h"

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#include "strings.h"

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#include "table/sprites.h"

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#include "functions.h"

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#include "window.h"

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#include "gui.h"

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#include "viewport.h"

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#include "gfx.h"

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#include "engine.h"

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#include "command.h"

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#include "news.h"

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#include "variables.h"

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#include "newgrf_engine.h"

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static StringID GetEngineCategoryName(EngineID engine)

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{

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	switch (GetEngine(engine)->type) {

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		default: NOT_REACHED();

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		case VEH_ROAD:              return STR_8103_ROAD_VEHICLE;

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		case VEH_AIRCRAFT:          return STR_8104_AIRCRAFT;

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		case VEH_SHIP:              return STR_8105_SHIP;

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		case VEH_TRAIN:

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			switch (RailVehInfo(engine)->railtype) {

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				default: NOT_REACHED();

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				case RAILTYPE_RAIL:     return STR_8102_RAILROAD_LOCOMOTIVE;

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				case RAILTYPE_ELECTRIC: return STR_8102_RAILROAD_LOCOMOTIVE;

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				case RAILTYPE_MONO:     return STR_8106_MONORAIL_LOCOMOTIVE;

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				case RAILTYPE_MAGLEV:   return STR_8107_MAGLEV_LOCOMOTIVE;

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			}

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	}

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}

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static const Widget _engine_preview_widgets[] = {

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{   WWT_CLOSEBOX,   RESIZE_NONE,     5,     0,    10,     0,    13, STR_00C5,                                  STR_018B_CLOSE_WINDOW},

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{    WWT_CAPTION,   RESIZE_NONE,     5,    11,   299,     0,    13, STR_8100_MESSAGE_FROM_VEHICLE_MANUFACTURE, STR_018C_WINDOW_TITLE_DRAG_THIS},

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{      WWT_PANEL,   RESIZE_NONE,     5,     0,   299,    14,   191, 0x0,                                       STR_NULL},

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{ WWT_PUSHTXTBTN,   RESIZE_NONE,     5,    85,   144,   172,   183, STR_00C9_NO,                               STR_NULL},

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{ WWT_PUSHTXTBTN,   RESIZE_NONE,     5,   155,   214,   172,   183, STR_00C8_YES,                              STR_NULL},

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{   WIDGETS_END},

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};

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typedef void DrawEngineProc(int x, int y, EngineID engine, SpriteID pal);

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typedef void DrawEngineInfoProc(EngineID, int x, int y, int maxw);

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struct DrawEngineInfo {

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	DrawEngineProc *engine_proc;

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	DrawEngineInfoProc *info_proc;

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};

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static void DrawTrainEngineInfo(EngineID engine, int x, int y, int maxw);

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static void DrawRoadVehEngineInfo(EngineID engine, int x, int y, int maxw);

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static void DrawShipEngineInfo(EngineID engine, int x, int y, int maxw);

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static void DrawAircraftEngineInfo(EngineID engine, int x, int y, int maxw);

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static const DrawEngineInfo _draw_engine_list[4] = {

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	{ DrawTrainEngine,    DrawTrainEngineInfo    },

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	{ DrawRoadVehEngine,  DrawRoadVehEngineInfo  },

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	{ DrawShipEngine,     DrawShipEngineInfo     },

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	{ DrawAircraftEngine, DrawAircraftEngineInfo },

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};

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static void EnginePreviewWndProc(Window *w, WindowEvent *e)

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{

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	switch (e->event) {

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	case WE_PAINT: {

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		EngineID engine = w->window_number;

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		const DrawEngineInfo* dei;

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		int width;

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		DrawWindowWidgets(w);

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		SetDParam(0, GetEngineCategoryName(engine));

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		DrawStringMultiCenter(150, 44, STR_8101_WE_HAVE_JUST_DESIGNED_A, 296);

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		SetDParam(0, engine);

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		DrawStringCentered(w->width >> 1, 80, STR_ENGINE_NAME, TC_BLACK);

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		dei = &_draw_engine_list[GetEngine(engine)->type];

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		width = w->width;

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		dei->engine_proc(width >> 1, 100, engine, 0);

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		dei->info_proc(engine, width >> 1, 130, width - 52);

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		break;

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	}

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	case WE_CLICK:

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		switch (e->we.click.widget) {

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			case 4:

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				DoCommandP(0, w->window_number, 0, NULL, CMD_WANT_ENGINE_PREVIEW);

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				/* Fallthrough */

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			case 3:

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				DeleteWindow(w);

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				break;

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		}

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		break;

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	}

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}

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static const WindowDesc _engine_preview_desc = {

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	WDP_CENTER, WDP_CENTER, 300, 192, 300, 192,

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	WC_ENGINE_PREVIEW, WC_NONE,

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	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET,

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	_engine_preview_widgets,

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	EnginePreviewWndProc

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};

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void ShowEnginePreviewWindow(EngineID engine)

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{

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	AllocateWindowDescFront(&_engine_preview_desc, engine);

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}

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static void DrawTrainEngineInfo(EngineID engine, int x, int y, int maxw)

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{

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	const RailVehicleInfo *rvi = RailVehInfo(engine);

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	int multihead = (rvi->railveh_type == RAILVEH_MULTIHEAD) ? 1 : 0;

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	SetDParam(0, (_price.build_railvehicle >> 3) * rvi->base_cost >> 5);

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	SetDParam(2, rvi->max_speed * 10 / 16);

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	SetDParam(3, rvi->power << multihead);

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	SetDParam(1, rvi->weight << multihead);

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	SetDParam(4, rvi->running_cost_base * _price.running_rail[rvi->running_cost_class] >> 8 << multihead);

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	if (rvi->capacity != 0) {

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		SetDParam(5, rvi->cargo_type);

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		SetDParam(6, rvi->capacity << multihead);

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	} else {

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		SetDParam(5, CT_INVALID);

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	}

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	DrawStringMultiCenter(x, y, STR_VEHICLE_INFO_COST_WEIGHT_SPEED_POWER, maxw);

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}

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static void DrawAircraftEngineInfo(EngineID engine, int x, int y, int maxw)

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{

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	const AircraftVehicleInfo *avi = AircraftVehInfo(engine);

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	SetDParam(0, (_price.aircraft_base >> 3) * avi->base_cost >> 5);

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	SetDParam(1, avi->max_speed * 10 / 16);

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	SetDParam(2, avi->passenger_capacity);

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	SetDParam(3, avi->mail_capacity);

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	SetDParam(4, avi->running_cost * _price.aircraft_running >> 8);

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	DrawStringMultiCenter(x, y, STR_A02E_COST_MAX_SPEED_CAPACITY, maxw);

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}

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static void DrawRoadVehEngineInfo(EngineID engine, int x, int y, int maxw)

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{

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	const RoadVehicleInfo *rvi = RoadVehInfo(engine);

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	SetDParam(0, (_price.roadveh_base >> 3) * rvi->base_cost >> 5);

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	SetDParam(1, rvi->max_speed * 10 / 32);

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	SetDParam(2, rvi->running_cost * _price.roadveh_running >> 8);

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	SetDParam(3, rvi->cargo_type);

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	SetDParam(4, rvi->capacity);

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	DrawStringMultiCenter(x, y, STR_902A_COST_SPEED_RUNNING_COST, maxw);

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}

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static void DrawShipEngineInfo(EngineID engine, int x, int y, int maxw)

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{

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	const ShipVehicleInfo *svi = ShipVehInfo(engine);

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	SetDParam(0, svi->base_cost * (_price.ship_base >> 3) >> 5);

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	SetDParam(1, svi->max_speed * 10 / 32);

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	SetDParam(2, svi->cargo_type);

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	SetDParam(3, svi->capacity);

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	SetDParam(4, svi->running_cost * _price.ship_running >> 8);

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	DrawStringMultiCenter(x, y, STR_982E_COST_MAX_SPEED_CAPACITY, maxw);

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}

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StringID GetNewsStringNewVehicleAvail(const NewsItem *ni)

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{

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	EngineID engine = ni->string_id;

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	SetDParam(0, GetEngineCategoryName(engine));

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	SetDParam(1, engine);

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	return STR_NEW_VEHICLE_NOW_AVAILABLE_WITH_TYPE;

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}

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void DrawNewsNewVehicleAvail(Window *w)

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{

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	DrawNewsBorder(w);

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	EngineID engine = WP(w, news_d).ni->string_id;

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	const DrawEngineInfo *dei = &_draw_engine_list[GetEngine(engine)->type];

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	SetDParam(0, GetEngineCategoryName(engine));

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	DrawStringMultiCenter(w->width >> 1, 20, STR_NEW_VEHICLE_NOW_AVAILABLE, w->width - 2);

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	GfxFillRect(25, 56, w->width - 25, w->height - 2, 10);

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	SetDParam(0, engine);

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	DrawStringMultiCenter(w->width >> 1, 57, STR_NEW_VEHICLE_TYPE, w->width - 2);

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	dei->engine_proc(w->width >> 1, 88, engine, 0);

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	GfxFillRect(25, 56, w->width - 56, 112, PALETTE_TO_STRUCT_GREY | (1 << USE_COLORTABLE));

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	dei->info_proc(engine, w->width >> 1, 129, w->width - 52);

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}