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/* $Id$ */

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/** @file timetable_gui.cpp GUI for time tabling. */

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#include "stdafx.h"

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#include "openttd.h"

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#include "variables.h"

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#include "command_func.h"

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#include "gui.h"

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#include "window_gui.h"

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#include "textbuf_gui.h"

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#include "cargotype.h"

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#include "strings_func.h"

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#include "vehicle_base.h"

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#include "string_func.h"

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#include "gfx_func.h"

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#include "player_func.h"

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#include "order_func.h"

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#include "settings_type.h"

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#include "table/strings.h"

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enum TimetableViewWindowWidgets {

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	TTV_WIDGET_CLOSEBOX = 0,

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	TTV_CAPTION,

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	TTV_ORDER_VIEW,

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	TTV_STICKY,

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	TTV_TIMETABLE_PANEL,

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	TTV_SCROLLBAR,

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	TTV_SUMMARY_PANEL,

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	TTV_CHANGE_TIME,

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	TTV_CLEAR_TIME,

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	TTV_RESET_LATENESS,

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	TTV_AUTOFILL,

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	TTV_EMPTY,

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	TTV_RESIZE,

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};

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

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{

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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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struct TimetableWindow : Window {

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	int sel_index;

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	TimetableWindow(const WindowDesc *desc, WindowNumber window_number) : Window(desc, window_number)

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	{

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		this->caption_color = GetVehicle(window_number)->owner;

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		this->vscroll.cap = 8;

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		this->resize.step_height = 10;

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		this->sel_index = -1;

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		this->FindWindowPlacementAndResize(desc);

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	}

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	int GetOrderFromTimetableWndPt(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 (this->widget[TTV_ORDER_VIEW].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 >= this->vscroll.cap) return INVALID_ORDER;

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		sel += this->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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	void OnPaint()

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	{

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

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		int selected = this->sel_index;

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

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		if (v->owner == _local_player) {

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			if (selected == -1) {

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				this->DisableWidget(TTV_CHANGE_TIME);

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				this->DisableWidget(TTV_CLEAR_TIME);

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

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				this->EnableWidget(TTV_CHANGE_TIME);

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				this->EnableWidget(TTV_CLEAR_TIME);

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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->IsType(OT_GOTO_STATION) || (order->GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION);

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				this->SetWidgetDisabledState(TTV_CHANGE_TIME, disable);

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				this->SetWidgetDisabledState(TTV_CLEAR_TIME, disable);

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			}

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			this->EnableWidget(TTV_RESET_LATENESS);

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			this->EnableWidget(TTV_AUTOFILL);

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		} else {

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			this->DisableWidget(TTV_CHANGE_TIME);

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			this->DisableWidget(TTV_CLEAR_TIME);

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			this->DisableWidget(TTV_RESET_LATENESS);

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			this->DisableWidget(TTV_AUTOFILL);

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		}

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		this->SetWidgetLoweredState(TTV_AUTOFILL, HasBit(v->vehicle_flags, VF_AUTOFILL_TIMETABLE));

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		SetDParam(0, v->index);

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		this->DrawWidgets();

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		int y = 15;

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		int i = this->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 - this->vscroll.pos >= this->vscroll.cap) break;

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			if (i % 2 == 0) {

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				DrawOrderString(v, order, order_id, y, i == selected, true);

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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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				DrawString(22, y, string, (i == selected) ? TC_WHITE : TC_BLACK);

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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 = this->widget[TTV_SUMMARY_PANEL].top + 1;

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		{

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			uint total_time = 0;

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			bool complete = true;

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			for (const Order *order = GetVehicleOrder(v, 0); order != NULL; order = order->next) {

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				total_time += order->travel_time + order->wait_time;

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				if (order->travel_time == 0) complete = false;

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				if (order->wait_time == 0 && order->IsType(OT_GOTO_STATION) && !(order->GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION)) complete = false;

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			}

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			if (total_time != 0) {

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				SetTimetableParams(0, 1, total_time);

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				DrawString(2, y, complete ? STR_TIMETABLE_TOTAL_TIME : STR_TIMETABLE_TOTAL_TIME_INCOMPLETE, TC_BLACK);

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			}

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		}

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		y += 10;

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			DrawString(2, y, STR_TIMETABLE_STATUS_ON_TIME, TC_BLACK);

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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, TC_BLACK);

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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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	virtual void OnClick(Point pt, int widget)

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	{

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

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		switch (widget) {

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			case TTV_ORDER_VIEW: /* Order view button */

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				ShowOrdersWindow(v);

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				break;

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			case TTV_TIMETABLE_PANEL: { /* Main panel. */

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				int selected = GetOrderFromTimetableWndPt(pt.y, v);

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				if (selected == INVALID_ORDER || selected == this->sel_index) {

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					/* Deselect clicked order */

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					this->sel_index = -1;

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				} else {

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					/* Select clicked order */

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					this->sel_index = selected;

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				}

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			} break;

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

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				int selected = this->sel_index;

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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 (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, this, CS_NUMERAL);

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			} break;

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

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				uint32 p1 = PackTimetableArgs(v, this->sel_index);

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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 TTV_RESET_LATENESS: /* 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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			case TTV_AUTOFILL: /* Autofill the timetable. */

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				DoCommandP(0, v->index, HasBit(v->vehicle_flags, VF_AUTOFILL_TIMETABLE) ? 0 : 1, NULL, CMD_AUTOFILL_TIMETABLE | CMD_MSG(STR_CAN_T_TIMETABLE_VEHICLE));

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				break;

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		}

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		this->SetDirty();

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	}

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	virtual void OnQueryTextFinished(char *str)

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	{

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		if (str == NULL) return;

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

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		uint32 p1 = PackTimetableArgs(v, this->sel_index);

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		uint64 time = StrEmpty(str) ? 0 : strtoul(str, NULL, 10);

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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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	}

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	virtual void OnResize(Point new_size, Point delta)

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	{

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		/* Update the scroll + matrix */

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		this->vscroll.cap = (this->widget[TTV_TIMETABLE_PANEL].bottom - this->widget[TTV_TIMETABLE_PANEL].top) / 10;

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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},                // TTV_WIDGET_CLOSEBOX

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	{    WWT_CAPTION,   RESIZE_RIGHT,   14,    11,   326,     0,    13, STR_TIMETABLE_TITLE,        STR_018C_WINDOW_TITLE_DRAG_THIS},      // TTV_CAPTION

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	{ WWT_PUSHTXTBTN,   RESIZE_LR,      14,   327,   387,     0,    13, STR_ORDER_VIEW,             STR_ORDER_VIEW_TOOLTIP},               // TTV_ORDER_VIEW

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	{  WWT_STICKYBOX,   RESIZE_LR,      14,   388,   399,     0,    13, STR_NULL,                   STR_STICKY_BUTTON},                    // TTV_STICKY

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	{      WWT_PANEL,   RESIZE_RB,      14,     0,   387,    14,    95, STR_NULL,                   STR_TIMETABLE_TOOLTIP},                // TTV_TIMETABLE_PANEL

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	{  WWT_SCROLLBAR,   RESIZE_LRB,     14,   388,   399,    14,    95, STR_NULL,                   STR_0190_SCROLL_BAR_SCROLLS_LIST},     // TTV_SCROLLBAR

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	{      WWT_PANEL,   RESIZE_RTB,     14,     0,   399,    96,   117, STR_NULL,                   STR_NULL},                             // TTV_SUMMARY_PANEL

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	{ WWT_PUSHTXTBTN,   RESIZE_TB,      14,     0,   109,   118,   129, STR_TIMETABLE_CHANGE_TIME,  STR_TIMETABLE_WAIT_TIME_TOOLTIP},      // TTV_CHANGE_TIME

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	{ WWT_PUSHTXTBTN,   RESIZE_TB,      14,   110,   219,   118,   129, STR_CLEAR_TIME,             STR_TIMETABLE_CLEAR_TIME_TOOLTIP},     // TTV_CLEAR_TIME

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	{ WWT_PUSHTXTBTN,   RESIZE_TB,      14,   220,   337,   118,   129, STR_RESET_LATENESS,         STR_TIMETABLE_RESET_LATENESS_TOOLTIP}, // TTV_RESET_LATENESS

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	{ WWT_PUSHTXTBTN,   RESIZE_TB,      14,   338,   387,   118,   129, STR_TIMETABLE_AUTOFILL,     STR_TIMETABLE_AUTOFILL_TOOLTIP},       // TTV_AUTOFILL

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	{      WWT_PANEL,   RESIZE_RTB,     14,   388,   387,   118,   129, STR_NULL,                   STR_NULL},                             // TTV_EMPTY

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	{  WWT_RESIZEBOX,   RESIZE_LRTB,    14,   388,   399,   118,   129, STR_NULL,                   STR_RESIZE_BUTTON},                    // TTV_RESIZE

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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, 400, 130, 400, 130,

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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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};

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void ShowTimetableWindow(const Vehicle *v)

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{

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	AllocateWindowDescFront<TimetableWindow>(&_timetable_desc, v->index);

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}