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path: root/src/statusbar_gui.cpp
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/* $Id$ */

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

#include "stdafx.h"
#include "openttd.h"
#include "settings_type.h"
#include "date_func.h"
#include "gfx_func.h"
#include "news_func.h"
#include "player_func.h"
#include "string_func.h"
#include "strings_func.h"
#include "player_base.h"
#include "tilehighlight_func.h"
#include "news_gui.h"
#include "player_gui.h"
#include "window_gui.h"
#include "variables.h"
#include "window_func.h"

#include "table/strings.h"
#include "table/sprites.h"

extern GetNewsStringCallbackProc * const _get_news_string_callback[];

static bool DrawScrollingStatusText(const NewsItem *ni, int pos, int width)
{
	StringID str;
	if (ni->display_mode == NM_CALLBACK) {
		str = _get_news_string_callback[ni->callback](ni);
	} else {
		CopyInDParam(0, ni->params, lengthof(ni->params));
		str = ni->string_id;
	}

	char buf[512];
	GetString(buf, str, lastof(buf));
	const char *s = buf;

	char buffer[256];
	char *d = buffer;
	const char *last = lastof(buffer);

	for (;;) {
		WChar c = Utf8Consume(&s);
		if (c == 0) {
			break;
		} else if (c == 0x0D) {
			if (d + 4 >= last) break;
			d[0] = d[1] = d[2] = d[3] = ' ';
			d += 4;
		} else if (IsPrintable(c)) {
			if (d + Utf8CharLen(c) >= last) break;
			d += Utf8Encode(d, c);
		}
	}
	*d = '\0';

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

	DrawPixelInfo *old_dpi = _cur_dpi;
	_cur_dpi = &tmp_dpi;

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

	return x > 0;
}

static void StatusBarWndProc(Window *w, WindowEvent *e)
{
	switch (e->event) {
		case WE_PAINT: {
			const Player *p = (_local_player == PLAYER_SPECTATOR) ? NULL : GetPlayer(_local_player);

			DrawWindowWidgets(w);
			SetDParam(0, _date);
			DrawStringCentered(70, 1, (_pause_game || _patches.status_long_date) ? STR_00AF : STR_00AE, TC_FROMSTRING);

			if (p != NULL) {
				/* Draw player money */
				SetDParam(0, p->player_money);
				DrawStringCentered(w->widget[2].left + 70, 1, STR_0004, TC_FROMSTRING);
			}

			/* Draw status bar */
			if (w->message.msg) { // true when saving is active
				DrawStringCenteredTruncated(w->widget[1].left + 1, w->widget[1].right - 1, 1, STR_SAVING_GAME, TC_FROMSTRING);
			} else if (_do_autosave) {
				DrawStringCenteredTruncated(w->widget[1].left + 1, w->widget[1].right - 1, 1, STR_032F_AUTOSAVE, TC_FROMSTRING);
			} else if (_pause_game) {
				DrawStringCenteredTruncated(w->widget[1].left + 1, w->widget[1].right - 1, 1, STR_0319_PAUSED, TC_FROMSTRING);
			} else if (WP(w, def_d).data_1 > -1280 && FindWindowById(WC_NEWS_WINDOW,0) == NULL && _statusbar_news_item.string_id != 0) {
				/* Draw the scrolling news text */
				if (!DrawScrollingStatusText(&_statusbar_news_item, WP(w, def_d).data_1, w->widget[1].right - w->widget[1].left - 2)) {
					WP(w, def_d).data_1 = -1280;
					if (p != NULL) {
						/* This is the default text */
						SetDParam(0, p->index);
						DrawStringCenteredTruncated(w->widget[1].left + 1, w->widget[1].right - 1, 1, STR_02BA, TC_FROMSTRING);
					}
				}
			} else {
				if (p != NULL) {
					/* This is the default text */
					SetDParam(0, p->index);
					DrawStringCenteredTruncated(w->widget[1].left + 1, w->widget[1].right - 1, 1, STR_02BA, TC_FROMSTRING);
				}
			}

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

		case WE_MESSAGE:
			w->message.msg = e->we.message.msg;
			w->SetDirty();
			break;

		case WE_CLICK:
			switch (e->we.click.widget) {
				case 1: ShowLastNewsMessage(); break;
				case 2: if (_local_player != PLAYER_SPECTATOR) ShowPlayerFinances(_local_player); break;
				default: ResetObjectToPlace();
			}
			break;

		case WE_TICK: {
			if (_pause_game) return;

			if (WP(w, def_d).data_1 > -1280) { // Scrolling text
				WP(w, def_d).data_1 -= 2;
				w->InvalidateWidget(1);
			}

			if (WP(w, def_d).data_2 > 0) { // Red blot to show there are new unread newsmessages
				WP(w, def_d).data_2 -= 2;
			} else if (WP(w, def_d).data_2 < 0) {
				WP(w, def_d).data_2 = 0;
				w->InvalidateWidget(1);
			}

		} break;
	}
}

static const Widget _main_status_widgets[] = {
{      WWT_PANEL,   RESIZE_NONE,    14,     0,   139,     0,    11, 0x0, STR_NULL},
{    WWT_PUSHBTN,   RESIZE_RIGHT,   14,   140,   179,     0,    11, 0x0, STR_02B7_SHOW_LAST_MESSAGE_OR_NEWS},
{    WWT_PUSHBTN,   RESIZE_LR,      14,   180,   319,     0,    11, 0x0, STR_NULL},
{   WIDGETS_END},
};

static WindowDesc _main_status_desc = {
	WDP_CENTER, 0, 320, 12, 640, 12,
	WC_STATUS_BAR, WC_NONE,
	WDF_STD_TOOLTIPS | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS,
	_main_status_widgets,
	StatusBarWndProc
};

void ShowStatusBar()
{
	_main_status_desc.top = _screen.height - 12;
	Window *w = new Window(&_main_status_desc);
	if (w != NULL) {
		CLRBITS(w->flags4, WF_WHITE_BORDER_MASK);
		WP(w, def_d).data_1 = -1280;
	}
}