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/* $Id$ */

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/** @file timetable_gui.cpp */

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#include "stdafx.h"

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#include "openttd.h"

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#include "functions.h"

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#include "variables.h"

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#include "table/strings.h"

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#include "command.h"

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#include "date.h"

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#include "engine.h"

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#include "gui.h"

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#include "string.h"

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#include "window.h"

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#include "vehicle.h"

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#include "cargotype.h"

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#include "depot.h"

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static int GetOrderFromTimetableWndPt(Window *w, int y, const Vehicle *v)

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{

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	/*

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	 * Calculation description:

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	 * 15 = 14 (w->widget[ORDER_WIDGET_ORDER_LIST].top) + 1 (frame-line)

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	 * 10 = order text hight

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	 */

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	int sel = (y - 15) / 10;

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	if ((uint)sel >= w->vscroll.cap) return INVALID_ORDER;

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	sel += w->vscroll.pos;

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	return (sel <= v->num_orders * 2 && sel >= 0) ? sel : INVALID_ORDER;

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}

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static inline void SetTimetableParams(int param1, int param2, uint32 time)

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{

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	if (_patches.timetable_in_ticks) {

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		SetDParam(param1, STR_TIMETABLE_TICKS);

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		SetDParam(param2, time);

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	} else {

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		SetDParam(param1, STR_TIMETABLE_DAYS);

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		SetDParam(param2, time / DAY_TICKS);

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	}

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}

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static void DrawTimetableWindow(Window *w)

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{

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	const Vehicle *v = GetVehicle(w->window_number);

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	int selected = WP(w,order_d).sel;

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	SetVScrollCount(w, v->num_orders * 2);

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	if (v->owner == _local_player) {

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		if (selected == -1) {

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			DisableWindowWidget(w, 6);

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			DisableWindowWidget(w, 7);

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		} else if (selected % 2 == 1) {

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			EnableWindowWidget(w, 6);

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			EnableWindowWidget(w, 7);

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		} else {

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			const Order *order = GetVehicleOrder(v, (selected + 1) / 2);

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			bool disable = order == NULL || order->type != OT_GOTO_STATION || (_patches.new_nonstop && (order->flags & OF_NON_STOP));

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			SetWindowWidgetDisabledState(w, 6, disable);

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			SetWindowWidgetDisabledState(w, 7, disable);

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		}

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		EnableWindowWidget(w, 8);

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	} else {

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		DisableWindowWidget(w, 6);

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		DisableWindowWidget(w, 7);

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		DisableWindowWidget(w, 8);

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	}

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	SetDParam(0, v->string_id);

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	SetDParam(1, v->unitnumber);

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	DrawWindowWidgets(w);

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	int y = 15;

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	int i = w->vscroll.pos;

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	VehicleOrderID order_id = (i + 1) / 2;

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	bool final_order = false;

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	const Order *order = GetVehicleOrder(v, order_id);

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	while (order != NULL) {

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		/* Don't draw anything if it extends past the end of the window. */

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		if (i - w->vscroll.pos >= w->vscroll.cap) break;

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		if (i % 2 == 0) {

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			SetDParam(2, STR_EMPTY);

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			switch (order->type) {

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				case OT_GOTO_STATION:

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					SetDParam(0, (order->flags & OF_NON_STOP) ? STR_880C_GO_NON_STOP_TO : STR_8806_GO_TO);

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					SetDParam(1, order->dest);

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					if (order->wait_time > 0) {

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						SetDParam(2, STR_TIMETABLE_STAY_FOR);

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						SetTimetableParams(3, 4, order->wait_time);

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					}

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					break;

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				case OT_GOTO_DEPOT: {

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					StringID string = STR_EMPTY;

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					if (v->type == VEH_AIRCRAFT) {

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						string = STR_GO_TO_AIRPORT_HANGAR;

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						SetDParam(1, order->dest);

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					} else {

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						SetDParam(1, GetDepot(order->dest)->town_index);

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						switch (v->type) {

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							case VEH_TRAIN: string = (order->flags & OF_NON_STOP) ? STR_880F_GO_NON_STOP_TO_TRAIN_DEPOT : STR_GO_TO_TRAIN_DEPOT; break;

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							case VEH_ROAD:  string = STR_9038_GO_TO_ROADVEH_DEPOT; break;

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							case VEH_SHIP:  string = STR_GO_TO_SHIP_DEPOT; break;

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							default: break;

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						}

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					}

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					if (order->flags & OF_FULL_LOAD) string++; // Service at orders

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					SetDParam(0, string);

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				} break;

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				case OT_GOTO_WAYPOINT:

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					SetDParam(0, (order->flags & OF_NON_STOP) ? STR_GO_NON_STOP_TO_WAYPOINT : STR_GO_TO_WAYPOINT);

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					SetDParam(1, order->dest);

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					break;

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				default: break;

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			}

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			byte colour = (i == selected) ? 0xC : 0x10;

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			if (order->type != OT_DUMMY) {

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				DrawString(2, y, STR_TIMETABLE_GO_TO, colour);

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			} else {

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				SetDParam(0, STR_INVALID_ORDER);

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				DrawString(2, y, STR_TIMETABLE_GO_TO, colour);

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			}

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			order_id++;

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			if (order_id >= v->num_orders) {

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				order = GetVehicleOrder(v, 0);

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				final_order = true;

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			} else {

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				order = order->next;

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			}

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		} else {

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			StringID string;

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			if (order->travel_time == 0) {

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				string = STR_TIMETABLE_TRAVEL_NOT_TIMETABLED;

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			} else {

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				SetTimetableParams(0, 1, order->travel_time);

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				string = STR_TIMETABLE_TRAVEL_FOR;

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			}

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			byte colour = (i == selected) ? 0xC : 0x10;

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			DrawString(12, y, string, colour);

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			if (final_order) break;

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		}

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		i++;

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		y += 10;

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	}

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	y = w->widget[5].top + 1;

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	if (v->lateness_counter == 0 || (!_patches.timetable_in_ticks && v->lateness_counter / DAY_TICKS == 0)) {

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		DrawString(2, y, STR_TIMETABLE_STATUS_ON_TIME, 0x10);

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	} else {

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		SetTimetableParams(0, 1, abs(v->lateness_counter));

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		DrawString(2, y, v->lateness_counter < 0 ? STR_TIMETABLE_STATUS_EARLY : STR_TIMETABLE_STATUS_LATE, 0x10);

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	}

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}

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static inline uint32 PackTimetableArgs(const Vehicle *v, uint selected)

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{

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	uint order_number = (selected + 1) / 2;

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	uint is_journey   = (selected % 2 == 1) ? 1 : 0;

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	if (order_number >= v->num_orders) order_number = 0;

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	return v->index | (order_number << 16) | (is_journey << 24);

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}

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static void TimetableWndProc(Window *w, WindowEvent *we)

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{

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	switch (we->event) {

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		case WE_PAINT:

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			DrawTimetableWindow(w);

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			break;

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		case WE_CLICK: {

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			const Vehicle *v = GetVehicle(w->window_number);

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

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				case 3: { /* Main panel. */

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					int selected = GetOrderFromTimetableWndPt(w, we->we.click.pt.y, v);

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					if (selected == INVALID_ORDER || selected == WP(w,order_d).sel) {

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						/* Deselect clicked order */

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						WP(w,order_d).sel = -1;

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					} else {

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						/* Select clicked order */

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						WP(w,order_d).sel = selected;

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					}

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				} break;

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				case 6: { /* "Wait For" button. */

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					int selected = WP(w,order_d).sel;

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					VehicleOrderID real = (selected + 1) / 2;

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					if (real >= v->num_orders) real = 0;

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					const Order *order = GetVehicleOrder(v, real);

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					StringID current = STR_EMPTY;

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					if (order != NULL) {

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						uint time = (selected % 2 == 1) ? order->travel_time : order->wait_time;

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						if (!_patches.timetable_in_ticks) time /= DAY_TICKS;

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						if (time != 0) {

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							SetDParam(0, time);

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							current = STR_CONFIG_PATCHES_INT32;

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						}

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					}

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					ShowQueryString(current, STR_TIMETABLE_CHANGE_TIME, 31, 150, w, CS_NUMERAL);

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				} break;

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				case 7: { /* Clear waiting time button. */

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					uint32 p1 = PackTimetableArgs(v, WP(w,order_d).sel);

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					DoCommandP(0, p1, 0, NULL, CMD_CHANGE_TIMETABLE | CMD_MSG(STR_CAN_T_TIMETABLE_VEHICLE));

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				} break;

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				case 8: /* Reset the vehicle's late counter. */

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					DoCommandP(0, v->index, 0, NULL, CMD_SET_VEHICLE_ON_TIME | CMD_MSG(STR_CAN_T_TIMETABLE_VEHICLE));

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					break;

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			}

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			SetWindowDirty(w);

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		} break;

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		case WE_ON_EDIT_TEXT: {

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			const Vehicle *v = GetVehicle(w->window_number);

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			uint32 p1 = PackTimetableArgs(v, WP(w,order_d).sel);

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			uint64 time = StrEmpty(we->we.edittext.str) ? 0 : strtoul(we->we.edittext.str, NULL, 10);

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			if (!_patches.timetable_in_ticks) time *= DAY_TICKS;

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			uint32 p2 = minu(time, MAX_UVALUE(uint16));

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			DoCommandP(0, p1, p2, NULL, CMD_CHANGE_TIMETABLE | CMD_MSG(STR_CAN_T_TIMETABLE_VEHICLE));

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		} break;

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		case WE_RESIZE:

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			/* Update the scroll + matrix */

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			break;

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	}

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}

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static const Widget _timetable_widgets[] = {

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	{   WWT_CLOSEBOX,   RESIZE_NONE,    14,     0,    10,     0,    13, STR_00C5,                   STR_018B_CLOSE_WINDOW},

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	{    WWT_CAPTION,   RESIZE_RIGHT,   14,    11,   337,     0,    13, STR_TIMETABLE_TITLE,        STR_018C_WINDOW_TITLE_DRAG_THIS},

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	{  WWT_STICKYBOX,   RESIZE_NONE,    14,   338,   349,     0,    13, STR_NULL,                   STR_STICKY_BUTTON},

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	{      WWT_PANEL,   RESIZE_RB,      14,     0,   337,    14,   176, STR_NULL,                   STR_TIMETABLE_TOOLTIP},

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	{  WWT_SCROLLBAR,   RESIZE_LRB,     14,   338,   349,    14,   176, STR_NULL,                   STR_0190_SCROLL_BAR_SCROLLS_LIST},

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	{      WWT_PANEL,   RESIZE_RTB,     14,     0,   349,   177,   188, STR_NULL,                   STR_NULL},

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	{ WWT_PUSHTXTBTN,   RESIZE_TB,      14,     0,   109,   189,   200, STR_TIMETABLE_CHANGE_TIME,  STR_TIMETABLE_WAIT_TIME_TOOLTIP},

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	{ WWT_PUSHTXTBTN,   RESIZE_TB,      14,   110,   219,   189,   200, STR_CLEAR_TIME,             STR_TIMETABLE_CLEAR_TIME_TOOLTIP},

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	{ WWT_PUSHTXTBTN,   RESIZE_TB,      14,   220,   337,   189,   200, STR_RESET_LATENESS,         STR_TIMETABLE_RESET_LATENESS_TOOLTIP},

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	{      WWT_PANEL,   RESIZE_RTB,     14,   338,   337,   189,   200, STR_NULL,                   STR_NULL},

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	{  WWT_RESIZEBOX,   RESIZE_LRTB,    14,   338,   349,   189,   200, STR_NULL,                   STR_RESIZE_BUTTON},

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	{    WIDGETS_END }

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};

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static const WindowDesc _timetable_desc = {

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	WDP_AUTO, WDP_AUTO, 350, 201,

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	WC_VEHICLE_TIMETABLE, WC_VEHICLE_VIEW,

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	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS | WDF_STICKY_BUTTON | WDF_RESIZABLE,

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	_timetable_widgets,

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	TimetableWndProc

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};

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void ShowTimetableWindow(const Vehicle *v)

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{

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	Window *w = AllocateWindowDescFront(&_timetable_desc, v->index);

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	if (w != NULL) {

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		w->caption_color = v->owner;

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		w->vscroll.cap = 16;

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		w->resize.step_height = 10;

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		WP(w,order_d).sel = -1;

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	}

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}