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/* $Id$ */

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/** @file statusbar_gui.cpp The GUI for the bottom status bar. */

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#include "stdafx.h"

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#include "openttd.h"

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#include "settings_type.h"

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#include "date_func.h"

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#include "gfx_func.h"

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#include "news_func.h"

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#include "player_func.h"

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#include "string_func.h"

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#include "strings_func.h"

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#include "player_base.h"

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#include "tilehighlight_func.h"

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#include "news_gui.h"

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#include "player_gui.h"

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#include "window_gui.h"

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#include "variables.h"

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#include "window_func.h"

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#include "table/strings.h"

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#include "table/sprites.h"

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static bool DrawScrollingStatusText(const NewsItem *ni, int pos, int width)

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{

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	CopyInDParam(0, ni->params, lengthof(ni->params));

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	StringID str = ni->string_id;

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	char buf[512];

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	GetString(buf, str, lastof(buf));

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	const char *s = buf;

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	char buffer[256];

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	char *d = buffer;

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	const char *last = lastof(buffer);

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	for (;;) {

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		WChar c = Utf8Consume(&s);

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		if (c == 0) {

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			break;

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		} else if (c == 0x0D) {

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			if (d + 4 >= last) break;

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			d[0] = d[1] = d[2] = d[3] = ' ';

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			d += 4;

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		} else if (IsPrintable(c)) {

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			if (d + Utf8CharLen(c) >= last) break;

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			d += Utf8Encode(d, c);

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		}

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	}

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	*d = '\0';

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	DrawPixelInfo tmp_dpi;

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	if (!FillDrawPixelInfo(&tmp_dpi, 141, 1, width, 11)) return true;

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	DrawPixelInfo *old_dpi = _cur_dpi;

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	_cur_dpi = &tmp_dpi;

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	int x = DoDrawString(buffer, pos, 0, TC_LIGHT_BLUE);

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	_cur_dpi = old_dpi;

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	return x > 0;

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}

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static void StatusBarWndProc(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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			const Player *p = (_local_player == PLAYER_SPECTATOR) ? NULL : GetPlayer(_local_player);

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			DrawWindowWidgets(w);

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			SetDParam(0, _date);

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			DrawStringCentered(70, 1, (_pause_game || _patches.status_long_date) ? STR_00AF : STR_00AE, TC_FROMSTRING);

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			if (p != NULL) {

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				/* Draw player money */

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				SetDParam(0, p->player_money);

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				DrawStringCentered(w->widget[2].left + 70, 1, STR_0004, TC_FROMSTRING);

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			}

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			/* Draw status bar */

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			if (WP(w, def_d).data_3) { // true when saving is active

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				DrawStringCenteredTruncated(w->widget[1].left + 1, w->widget[1].right - 1, 1, STR_SAVING_GAME, TC_FROMSTRING);

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			} else if (_do_autosave) {

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				DrawStringCenteredTruncated(w->widget[1].left + 1, w->widget[1].right - 1, 1, STR_032F_AUTOSAVE, TC_FROMSTRING);

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			} else if (_pause_game) {

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				DrawStringCenteredTruncated(w->widget[1].left + 1, w->widget[1].right - 1, 1, STR_0319_PAUSED, TC_FROMSTRING);

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			} else if (WP(w, def_d).data_1 > -1280 && FindWindowById(WC_NEWS_WINDOW,0) == NULL && _statusbar_news_item.string_id != 0) {

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				/* Draw the scrolling news text */

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				if (!DrawScrollingStatusText(&_statusbar_news_item, WP(w, def_d).data_1, w->widget[1].right - w->widget[1].left - 2)) {

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					WP(w, def_d).data_1 = -1280;

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					if (p != NULL) {

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						/* This is the default text */

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						SetDParam(0, p->index);

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						DrawStringCenteredTruncated(w->widget[1].left + 1, w->widget[1].right - 1, 1, STR_02BA, TC_FROMSTRING);

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					}

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				}

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			} else {

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				if (p != NULL) {

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					/* This is the default text */

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					SetDParam(0, p->index);

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					DrawStringCenteredTruncated(w->widget[1].left + 1, w->widget[1].right - 1, 1, STR_02BA, TC_FROMSTRING);

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				}

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			}

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			if (WP(w, def_d).data_2 > 0) DrawSprite(SPR_BLOT, PALETTE_TO_RED, w->widget[1].right - 11, 2);

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		} break;

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		case WE_INVALIDATE_DATA:

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			WP(w, def_d).data_3 = e->we.invalidate.data;

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			break;

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		case WE_CLICK:

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

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				case 1: ShowLastNewsMessage(); break;

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				case 2: if (_local_player != PLAYER_SPECTATOR) ShowPlayerFinances(_local_player); break;

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				default: ResetObjectToPlace();

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			}

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			break;

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		case WE_TICK: {

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			if (_pause_game) return;

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			if (WP(w, def_d).data_1 > -1280) { // Scrolling text

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				WP(w, def_d).data_1 -= 2;

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				w->InvalidateWidget(1);

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			}

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			if (WP(w, def_d).data_2 > 0) { // Red blot to show there are new unread newsmessages

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				WP(w, def_d).data_2 -= 2;

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			} else if (WP(w, def_d).data_2 < 0) {

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				WP(w, def_d).data_2 = 0;

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				w->InvalidateWidget(1);

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			}

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		} break;

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	}

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}

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static const Widget _main_status_widgets[] = {

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{      WWT_PANEL,   RESIZE_NONE,    14,     0,   139,     0,    11, 0x0, STR_NULL},

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{    WWT_PUSHBTN,   RESIZE_RIGHT,   14,   140,   179,     0,    11, 0x0, STR_02B7_SHOW_LAST_MESSAGE_OR_NEWS},

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{    WWT_PUSHBTN,   RESIZE_LR,      14,   180,   319,     0,    11, 0x0, STR_NULL},

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{   WIDGETS_END},

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};

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static WindowDesc _main_status_desc = {

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	WDP_CENTER, 0, 320, 12, 640, 12,

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	WC_STATUS_BAR, WC_NONE,

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	WDF_STD_TOOLTIPS | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS,

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	_main_status_widgets,

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	StatusBarWndProc

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};

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void ShowStatusBar()

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{

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	_main_status_desc.top = _screen.height - 12;

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	Window *w = new Window(&_main_status_desc);

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	if (w != NULL) {

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		CLRBITS(w->flags4, WF_WHITE_BORDER_MASK);

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		WP(w, def_d).data_1 = -1280;

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	}

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}