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/* $Id$ */

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/** @file news_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 "strings.h"

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#include "table/sprites.h"

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

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#include "vehicle.h"

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#include "sound.h"

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#include "variables.h"

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#include "date.h"

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#include "string.h"

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    22

/* News system

    23

 * News system is realized as a FIFO queue (in an array)

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 * The positions in the queue can't be rearranged, we only access

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 * the array elements through pointers to the elements. Once the

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 * array is full, the oldest entry (_oldest_news) is being overwritten

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 * by the newest (_latest news).

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 *

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 * oldest                   current   lastest

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 *  |                          |         |

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 * [O------------F-------------C---------L           ]

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 *               |

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 *            forced

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 *

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 * Of course by using an array we can have situations like

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 *

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 * [----L          O-----F---------C-----------------]

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 * This is where we have wrapped around the array and have

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 * (MAX_NEWS - O) + L news items

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 */

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    42

#define MAX_NEWS 30

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#define NB_WIDG_PER_SETTING 4

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    45

typedef byte NewsID;

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#define INVALID_NEWS 255

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    48

static NewsItem _news_items[MAX_NEWS];

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static NewsID _current_news = INVALID_NEWS; // points to news item that should be shown next

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static NewsID _oldest_news = 0;    // points to first item in fifo queue

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static NewsID _latest_news = INVALID_NEWS;  // points to last item in fifo queue

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/* if the message being shown was forced by the user, its index is stored in

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 * _forced_news. forced_news is INVALID_NEWS otherwise.

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 * (Users can force messages through history or "last message") */

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static NewsID _forced_news = INVALID_NEWS;

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    57

static byte _total_news = 0; // total news count

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    59

void DrawNewsNewVehicleAvail(Window *w);

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void DrawNewsBankrupcy(Window *w);

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static void MoveToNextItem();

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    63

StringID GetNewsStringNewVehicleAvail(const NewsItem *ni);

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StringID GetNewsStringBankrupcy(const NewsItem *ni);

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static DrawNewsCallbackProc * const _draw_news_callback[] = {

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	DrawNewsNewVehicleAvail,  //< DNC_VEHICLEAVAIL

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	DrawNewsBankrupcy,        //< DNC_BANKRUPCY

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};

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extern GetNewsStringCallbackProc * const _get_news_string_callback[];

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GetNewsStringCallbackProc * const _get_news_string_callback[] = {

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	GetNewsStringNewVehicleAvail,  ///< DNC_VEHICLEAVAIL

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	GetNewsStringBankrupcy,        ///< DNC_BANKRUPCY

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};

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    77

void InitNewsItemStructs()

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{

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	memset(_news_items, 0, sizeof(_news_items));

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	_current_news = INVALID_NEWS;

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	_oldest_news = 0;

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	_latest_news = INVALID_NEWS;

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	_forced_news = INVALID_NEWS;

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	_total_news = 0;

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}

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    87

void DrawNewsBorder(const Window *w)

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{

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	int left = 0;

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	int right = w->width - 1;

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	int top = 0;

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	int bottom = w->height - 1;

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	GfxFillRect(left, top, right, bottom, 0xF);

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    96

	GfxFillRect(left, top, left, bottom, 0xD7);

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	GfxFillRect(right, top, right, bottom, 0xD7);

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	GfxFillRect(left, top, right, top, 0xD7);

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	GfxFillRect(left, bottom, right, bottom, 0xD7);

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   101

	DrawString(left + 2, top + 1, STR_00C6, 0);

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}

   103

   104

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

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{

   106

	switch (e->event) {

   107

	case WE_CREATE: { // If chatbar is open at creation time, we need to go above it

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		const Window *w1 = FindWindowById(WC_SEND_NETWORK_MSG, 0);

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		w->message.msg = (w1 != NULL) ? w1->height : 0;

   110

	} break;

   111

   112

	case WE_PAINT: {

   113

		const NewsItem *ni = WP(w, news_d).ni;

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		ViewPort *vp;

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   116

		switch (ni->display_mode) {

   117

			case NM_NORMAL:

   118

			case NM_THIN: {

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				DrawNewsBorder(w);

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   121

				DrawString(2, 1, STR_00C6, 0);

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   123

				SetDParam(0, ni->date);

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				DrawStringRightAligned(428, 1, STR_01FF, 0);

   125

   126

				if (!(ni->flags & NF_VIEWPORT)) {

   127

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

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					DrawStringMultiCenter(215, ni->display_mode == NM_NORMAL ? 76 : 56,

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						ni->string_id, w->width - 4);

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				} else {

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					DrawWindowViewport(w);

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   137

					/* Shade the viewport into gray, or color*/

   138

					vp = w->viewport;

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					GfxFillRect(vp->left - w->left, vp->top - w->top,

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						vp->left - w->left + vp->width - 1, vp->top - w->top + vp->height - 1,

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						(ni->flags & NF_INCOLOR ? PALETTE_TO_TRANSPARENT : PALETTE_TO_STRUCT_GREY) | (1 << USE_COLORTABLE)

   142

					);

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   144

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

   145

					DrawStringMultiCenter(w->width / 2, 20, ni->string_id, w->width - 4);

   146

				}

   147

				break;

   148

			}

   149

   150

			case NM_CALLBACK: {

   151

				_draw_news_callback[ni->callback](w);

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				break;

   153

			}

   154

   155

			default: {

   156

				DrawWindowWidgets(w);

   157

				if (!(ni->flags & NF_VIEWPORT)) {

   158

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

   159

					DrawStringMultiCenter(140, 38, ni->string_id, 276);

   160

				} else {

   161

					DrawWindowViewport(w);

   162

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

   163

					DrawStringMultiCenter(w->width / 2, w->height - 16, ni->string_id, w->width - 4);

   164

				}

   165

				break;

   166

			}

   167

		}

   168

	} break;

   169

   170

	case WE_CLICK: {

   171

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

   172

		case 1: {

   173

			NewsItem *ni = WP(w, news_d).ni;

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			DeleteWindow(w);

   175

			ni->duration = 0;

   176

			_forced_news = INVALID_NEWS;

   177

		} break;

   178

		case 0: {

   179

			NewsItem *ni = WP(w, news_d).ni;

   180

			if (ni->flags & NF_VEHICLE) {

   181

				Vehicle *v = GetVehicle(ni->data_a);

   182

				ScrollMainWindowTo(v->x_pos, v->y_pos);

   183

			} else if (ni->flags & NF_TILE) {

   184

				if (!ScrollMainWindowToTile(ni->data_a) && ni->data_b != 0)

   185

					ScrollMainWindowToTile(ni->data_b);

   186

			}

   187

		} break;

   188

		}

   189

	} break;

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   191

	case WE_KEYPRESS:

   192

		if (e->we.keypress.keycode == WKC_SPACE) {

   193

			/* Don't continue. */

   194

			e->we.keypress.cont = false;

   195

			DeleteWindow(w);

   196

		}

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		break;

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   199

	case WE_MESSAGE: // The chatbar has notified us that is was either created or closed

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		switch (e->we.message.msg) {

   201

			case WE_CREATE: w->message.msg = e->we.message.wparam; break;

   202

			case WE_DESTROY: w->message.msg = 0; break;

   203

		}

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		break;

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   206

	case WE_TICK: { // Scroll up newsmessages from the bottom in steps of 4 pixels

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		int diff;

   208

		int y = max(w->top - 4, _screen.height - w->height - 12 - w->message.msg);

   209

		if (y == w->top) return;

   210

   211

		if (w->viewport != NULL)

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			w->viewport->top += y - w->top;

   213

   214

		diff = delta(w->top, y);

   215

		w->top = y;

   216

   217

		SetDirtyBlocks(w->left, w->top - diff, w->left + w->width, w->top + w->height);

   218

	} break;

   219

	}

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}

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/** Return the correct index in the pseudo-fifo

   223

 * queue and deals with overflows when increasing the index */

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static inline NewsID increaseIndex(NewsID i)

   225

{

   226

	assert(i != INVALID_NEWS);

   227

	return (i + 1) % MAX_NEWS;

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}

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   230

/** Return the correct index in the pseudo-fifo

   231

 * queue and deals with overflows when decreasing the index */

   232

static inline NewsID decreaseIndex(NewsID i)

   233

{

   234

	assert(i != INVALID_NEWS);

   235

	return (i + MAX_NEWS - 1) % MAX_NEWS;

   236

}

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/** Add a new newsitem to be shown.

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 * @param string String to display, can have special values based on parameter 'flags'

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 * @param flags various control bits that will show various news-types. See macro NEWS_FLAGS()

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 * @param data_a news-specific value based on news type

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 * @param data_b news-specific value based on news type

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 * If the display mode is NM_CALLBACK special news is shown and parameter

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 * DNC_TRAINAVAIL, DNC_ROADAVAIL, DNC_SHIPAVAIL, DNC_AIRCRAFTAVAIL: StringID is

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 * DNC_BANKRUPCY: bytes 0-3 of StringID contains the player that is in trouble,

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 * @see NewsMode

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 * @see NewsFlags

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 * @see NewsType

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 * @see NewsCallback */

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void AddNewsItem(StringID string, uint32 flags, uint data_a, uint data_b)

   259

{

   260

	NewsID l_news;

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   262

	if (_game_mode == GM_MENU) return;

   263

   264

	/* check the rare case that the oldest (to be overwritten) news item is open */

   265

	if (_total_news == MAX_NEWS && (_oldest_news == _current_news || _oldest_news == _forced_news))

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		MoveToNextItem();

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   268

	if (_total_news < MAX_NEWS) _total_news++;

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   270

	/* Increase _latest_news. If we have no news yet, use _oldest news as an

   271

	 * index. We cannot use 0 as _oldest_news can jump around due to

   272

	 * DeleteVehicleNews */

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	l_news = _latest_news;

   274

	_latest_news = (_latest_news == INVALID_NEWS) ? _oldest_news : increaseIndex(_latest_news);

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   276

	/* If the fifo-buffer is full, overwrite the oldest entry */

   277

	if (l_news != INVALID_NEWS && _latest_news == _oldest_news) {

   278

		assert(_total_news == MAX_NEWS);

   279

		_oldest_news = increaseIndex(_oldest_news);

   280

	}

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   282

	/*DEBUG(misc, 0, "+cur %3d, old %2d, lat %3d, for %3d, tot %2d",

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	  _current_news, _oldest_news, _latest_news, _forced_news, _total_news);*/

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   285

	/* Add news to _latest_news */

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	{

   287

		Window *w;

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		NewsItem *ni = &_news_items[_latest_news];

   289

		memset(ni, 0, sizeof(*ni));

   290

   291

		ni->string_id = string;

   292

		ni->display_mode = (byte)flags;

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		ni->flags = (byte)(flags >> 8);

   294

   295

		/* show this news message in color? */

   296

		if (_cur_year >= _patches.colored_news_year) ni->flags |= NF_INCOLOR;

   297

   298

		ni->type = (byte)(flags >> 16);

   299

		ni->callback = (byte)(flags >> 24);

   300

		ni->data_a = data_a;

   301

		ni->data_b = data_b;

   302

		ni->date = _date;

   303

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

   304

   305

		w = FindWindowById(WC_MESSAGE_HISTORY, 0);

   306

		if (w == NULL) return;

   307

		SetWindowDirty(w);

   308

		w->vscroll.count = _total_news;

   309

	}

   310

}

   311

   312

   313

/* Don't show item if it's older than x days, corresponds with NewsType in news.h */

   314

static const byte _news_items_age[] = {60, 60, 90, 60, 90, 30, 150, 30, 90, 180};

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   316

static const Widget _news_type13_widgets[] = {

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{      WWT_PANEL,   RESIZE_NONE,    15,     0,   429,     0,   169, 0x0, STR_NULL},

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{      WWT_PANEL,   RESIZE_NONE,    15,     0,    10,     0,    11, 0x0, STR_NULL},

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{   WIDGETS_END},

   320

};

   321

   322

static WindowDesc _news_type13_desc = {

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	WDP_CENTER, 476, 430, 170,

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	WC_NEWS_WINDOW, WC_NONE,

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	WDF_DEF_WIDGET,

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	_news_type13_widgets,

   327

	NewsWindowProc

   328

};

   329

   330

static const Widget _news_type2_widgets[] = {

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{      WWT_PANEL,   RESIZE_NONE,    15,     0,   429,     0,   129, 0x0, STR_NULL},

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{      WWT_PANEL,   RESIZE_NONE,    15,     0,    10,     0,    11, 0x0, STR_NULL},

   333

{   WIDGETS_END},

   334

};

   335

   336

static WindowDesc _news_type2_desc = {

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	WDP_CENTER, 476, 430, 130,

   338

	WC_NEWS_WINDOW, WC_NONE,

   339

	WDF_DEF_WIDGET,

   340

	_news_type2_widgets,

   341

	NewsWindowProc

   342

};

   343

   344

static const Widget _news_type0_widgets[] = {

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{      WWT_PANEL,   RESIZE_NONE,     5,     0,   279,    14,    86, 0x0,              STR_NULL},

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

   347

{    WWT_CAPTION,   RESIZE_NONE,     5,    11,   279,     0,    13, STR_012C_MESSAGE, STR_NULL},

   348

{      WWT_INSET,   RESIZE_NONE,     5,     2,   277,    16,    64, 0x0,              STR_NULL},

   349

{   WIDGETS_END},

   350

};

   351

   352

static WindowDesc _news_type0_desc = {

   353

	WDP_CENTER, 476, 280, 87,

   354

	WC_NEWS_WINDOW, WC_NONE,

   355

	WDF_DEF_WIDGET,

   356

	_news_type0_widgets,

   357

	NewsWindowProc

   358

};

   359

   360

static const SoundFx _news_sounds[NT_END] = {

   361

	SND_1D_APPLAUSE,

   362

	SND_1D_APPLAUSE,

   363

	SND_BEGIN,

   364

	SND_BEGIN,

   365

	SND_BEGIN,

   366

	SND_BEGIN,

   367

	SND_BEGIN,

   368

	SND_1E_OOOOH,

   369

	SND_BEGIN,

   370

	SND_BEGIN,

   371

	SND_BEGIN,

   372

};

   373

   374

const char *_news_display_name[NT_END] = {

   375

	"arrival_player",

   376

	"arrival_other",

   377

	"accident",

   378

	"company_info",

   379

	"openclose",

   380

	"economy",

   381

	"advice",

   382

	"new_vehicles",

   383

	"acceptance",

   384

	"subsidies",

   385

	"general",

   386

};

   387

   388

/** Get the value of an item of the news-display settings. This is

   389

 * a little tricky since on/off/summary must use 2 bits to store the value

   390

 * @param item the item whose value is requested

   391

 * @return return the found value which is between 0-2

   392

 */

   393

static inline byte GetNewsDisplayValue(byte item)

   394

{

   395

	assert(item < NT_END && GB(_news_display_opt, item * 2, 2) <= 2);

   396

	return GB(_news_display_opt, item * 2, 2);

   397

}

   398

   399

/** Set the value of an item in the news-display settings. This is

   400

 * a little tricky since on/off/summary must use 2 bits to store the value

   401

 * @param item the item whose value is being set

   402

 * @param val new value

   403

 */

   404

static inline void SetNewsDisplayValue(byte item, byte val)

   405

{

   406

	assert(item < NT_END && val <= 2);

   407

	SB(_news_display_opt, item * 2, 2, val);

   408

}

   409

   410

/* open up an own newspaper window for the news item */

   411

static void ShowNewspaper(NewsItem *ni)

   412

{

   413

	Window *w;

   414

	SoundFx sound;

   415

	int top;

   416

	ni->flags &= ~NF_FORCE_BIG;

   417

	ni->duration = 555;

   418

   419

	sound = _news_sounds[ni->type];

   420

	if (sound != 0) SndPlayFx(sound);

   421

   422

	top = _screen.height;

   423

	switch (ni->display_mode) {

   424

		case NM_NORMAL:

   425

		case NM_CALLBACK: {

   426

			_news_type13_desc.top = top;

   427

			w = AllocateWindowDesc(&_news_type13_desc);

   428

			if (ni->flags & NF_VIEWPORT)

   429

				AssignWindowViewport(w, 2, 58, 0x1AA, 0x6E,

   431

			break;

   432

		}

   433

   434

		case NM_THIN: {

   435

			_news_type2_desc.top = top;

   436

			w = AllocateWindowDesc(&_news_type2_desc);

   437

			if (ni->flags & NF_VIEWPORT)

   438

				AssignWindowViewport(w, 2, 58, 0x1AA, 0x46,

   440

			break;

   441

		}

   442

   443

		default: {

   444

			_news_type0_desc.top = top;

   445

			w = AllocateWindowDesc(&_news_type0_desc);

   446

			if (ni->flags & NF_VIEWPORT)

   447

				AssignWindowViewport(w, 3, 17, 0x112, 0x2F,

   449

			break;

   450

		}

   451

	}

   452

   453

	/*DEBUG(misc, 0, " cur %3d, old %2d, lat %3d, for %3d, tot %2d",

   454

	  _current_news, _oldest_news, _latest_news, _forced_news, _total_news);*/

   455

   456

	WP(w, news_d).ni = &_news_items[_forced_news == INVALID_NEWS ? _current_news : _forced_news];

   457

	w->flags4 |= WF_DISABLE_VP_SCROLL;

   458

}

   459

   460

/* show news item in the ticker */

   461

static void ShowTicker(const NewsItem *ni)

   462

{

   463

	Window *w;

   464

   465

	if (_news_ticker_sound) SndPlayFx(SND_16_MORSE);

   466

   467

	_statusbar_news_item = *ni;

   468

	w = FindWindowById(WC_STATUS_BAR, 0);

   469

	if (w != NULL) WP(w, def_d).data_1 = 360;

   470

}

   471

   472

   473

/** Are we ready to show another news item?

   474

 * Only if nothing is in the newsticker and no newspaper is displayed */

   475

static bool ReadyForNextItem()

   476

{

   477

	const Window *w;

   478

	NewsID item = (_forced_news == INVALID_NEWS) ? _current_news : _forced_news;

   479

	NewsItem *ni;

   480

   481

	if (item >= MAX_NEWS) return true;

   482

	ni = &_news_items[item];

   483

   484

	/* Ticker message

   485

	 * Check if the status bar message is still being displayed? */

   486

	w = FindWindowById(WC_STATUS_BAR, 0);

   487

	if (w != NULL && WP(w, const def_d).data_1 > -1280) return false;

   488