1 /* $Id$ */

     2 

     3 #include "stdafx.h"

     4 #include "openttd.h"

     5 #include "functions.h"

     6 #include "variables.h"

     7 #include "gfx.h"

     8 #include "gui.h"

     9 #include "window.h"

    10 #include "table/strings.h"

    11 #include "table/sprites.h"

    12 #include "newgrf.h"

    13 #include "newgrf_config.h"

    14 

    15 

    16 /** Parse an integerlist string and set each found value

    17  * @param p the string to be parsed. Each element in the list is seperated by a

    18  * comma or a space character

    19  * @param items pointer to the integerlist-array that will be filled with values

    20  * @param maxitems the maximum number of elements the integerlist-array has

    21  * @return returns the number of items found, or -1 on an error */

    22 static int parse_intlist(const char *p, int *items, int maxitems)

    23 {

    24 	int n = 0, v;

    25 	char *end;

    26 

    27 	for (;;) {

    28 		v = strtol(p, &end, 0);

    29 		if (p == end || n == maxitems) return -1;

    30 		p = end;

    31 		items[n++] = v;

    32 		if (*p == '\0') break;

    33 		if (*p != ',' && *p != ' ') return -1;

    34 		p++;

    35 	}

    36 

    37 	return n;

    38 }

    39 

    40 

    41 static void ShowNewGRFInfo(const GRFConfig *c, uint x, uint y, uint w, bool show_params)

    42 {

    43 	char buff[512];

    44 	char *s;

    45 	uint i;

    46 

    47 	/* Draw filename or not if it is not known (GRF sent over internet) */

    48 	if (c->filename != NULL) {

    49 		SetDParamStr(0, c->filename);

    50 		y += DrawStringMultiLine(x, y, STR_NEWGRF_FILENAME, w);

    51 	}

    52 

    53 	/* Prepare and draw GRF ID */

    54 	snprintf(buff, lengthof(buff), "%08X", (uint32)BSWAP32(c->grfid));

    55 	SetDParamStr(0, buff);

    56 	y += DrawStringMultiLine(x, y, STR_NEWGRF_GRF_ID, w);

    57 

    58 	/* Prepare and draw MD5 sum */

    59 	s = buff;

    60 	for (i = 0; i < lengthof(c->md5sum); i++) {

    61 		s += snprintf(s, lastof(buff) - s, "%02X", c->md5sum[i]);

    62 	}

    63 	SetDParamStr(0, buff);

    64 	y += DrawStringMultiLine(x, y, STR_NEWGRF_MD5SUM, w);

    65 

    66 	/* Show GRF parameter list */

    67 	if (show_params) {

    68 		if (c->num_params > 0) {

    69 			GRFBuildParamList(buff, c, lastof(buff));

    70 			SetDParamStr(0, buff);

    71 		} else {

    72 			SetDParam(0, STR_01A9_NONE);

    73 		}

    74 		y += DrawStringMultiLine(x, y, STR_NEWGRF_PARAMETER, w);

    75 	}

    76 

    77 	/* Show flags */

    78 	if (HASBIT(c->flags, GCF_NOT_FOUND)) y += DrawStringMultiLine(x, y, STR_NEWGRF_NOT_FOUND, w);

    79 	if (HASBIT(c->flags, GCF_DISABLED))  y += DrawStringMultiLine(x, y, STR_NEWGRF_DISABLED, w);

    80 

    81 	/* Draw GRF info if it exists */

    82 	if (c->info != NULL && strlen(c->info) != 0) {

    83 		SetDParamStr(0, c->info);

    84 		y += DrawStringMultiLine(x, y, STR_02BD, w);

    85 	} else {

    86 		y += DrawStringMultiLine(x, y, STR_NEWGRF_NO_INFO, w);

    87 	}

    88 }

    89 

    90 

    91 /* Dialogue for adding NewGRF files to the selection */

    92 typedef struct newgrf_add_d {

    93 	GRFConfig **list;

    94 	const GRFConfig *sel;

    95 } newgrf_add_d;

    96 

    97 

    98 static void NewGRFAddDlgWndProc(Window *w, WindowEvent *e)

    99 {

   100 	switch (e->event) {

   101 		case WE_PAINT: {

   102 			const GRFConfig *c;

   103 			int y;

   104 			int n = 0;

   105 

   106 			/* Count the number of GRFs */

   107 			for (c = _all_grfs; c != NULL; c = c->next) n++;

   108 

   109 			w->vscroll.cap = (w->widget[3].bottom - w->widget[3].top) / 10;

   110 			SetVScrollCount(w, n);

   111 

   112 			SetWindowWidgetDisabledState(w, 6, WP(w, newgrf_add_d).sel == NULL);

   113 			DrawWindowWidgets(w);

   114 

   115 			GfxFillRect(w->widget[3].left + 1, w->widget[3].top + 1, w->widget[3].right, w->widget[3].bottom, 0xD7);

   116 

   117 			n = 0;

   118 			y = w->widget[3].top + 1;

   119 

   120 			for (c = _all_grfs; c != NULL; c = c->next) {

   121 				if (n >= w->vscroll.pos && n < w->vscroll.pos + w->vscroll.cap) {

   122 					bool h = c == WP(w, newgrf_add_d).sel;

   123 					const char *text = (c->name != NULL && strlen(c->name) != 0) ? c->name : c->filename;

   124 

   125 					/* Draw selection background */

   126 					if (h) GfxFillRect(3, y, w->width - 15, y + 9, 156);

   127 					DoDrawStringTruncated(text, 4, y, h ? 0xC : 0x6, w->width - 18);

   128 					y += 10;

   129 				}

   130 				n++;

   131 			}

   132 

   133 			if (WP(w, newgrf_add_d).sel != NULL) {

   134 				const Widget *wi = &w->widget[5];

   135 				ShowNewGRFInfo(WP(w, newgrf_add_d).sel, wi->left + 2, wi->top + 2, wi->right - wi->left - 2, false);

   136 			}

   137 			break;

   138 		}

   139 

   140 		case WE_CLICK:

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

   142 				case 3: {

   143 					// Get row...

   144 					const GRFConfig *c;

   145 					uint i = (e->we.click.pt.y - w->widget[3].top) / 10 + w->vscroll.pos;

   146 

   147 					for (c = _all_grfs; c != NULL && i > 0; c = c->next, i--);

   148 					WP(w, newgrf_add_d).sel = c;

   149 					SetWindowDirty(w);

   150 					break;

   151 				}

   152 

   153 				case 6: /* Add selection to list */

   154 					if (WP(w, newgrf_add_d).sel != NULL) {

   155 						const GRFConfig *src = WP(w, newgrf_add_d).sel;

   156 						GRFConfig **list, *c;

   157 

   158 						/* Find last entry in the list, checking for duplicate grfid on the way */

   159 						for (list = WP(w, newgrf_add_d).list; *list != NULL; list = &(*list)->next) {

   160 							if ((*list)->grfid == src->grfid) {

   161 								ShowErrorMessage(INVALID_STRING_ID, STR_NEWGRF_DUPLICATE_GRFID, 0, 0);

   162 								return;

   163 							}

   164 						}

   165 

   166 						/* Copy GRF details from scanned list */

   167 						c = calloc(1, sizeof(*c));

   168 						*c = *src;

   169 						c->filename = strdup(src->filename);

   170 						if (src->name != NULL) c->name = strdup(src->name);

   171 						if (src->info != NULL) c->info = strdup(src->info);

   172 						c->next = NULL;

   173 

   174 						/* Append GRF config to configuration list */

   175 						*list = c;

   176 

   177 						DeleteWindowByClass(WC_SAVELOAD);

   178 						InvalidateWindowData(WC_GAME_OPTIONS, 0);

   179 					}

   180 					break;

   181 

   182 				case 7: /* Rescan list */

   183 					WP(w, newgrf_add_d).sel = NULL;

   184 					ScanNewGRFFiles();

   185 					SetWindowDirty(w);

   186 					break;

   187 			}

   188 			break;

   189 	}

   190 }

   191 

   192 

   193 static const Widget _newgrf_add_dlg_widgets[] = {

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

   195 {    WWT_CAPTION,   RESIZE_RIGHT, 14,  11, 306,   0,  13, STR_NEWGRF_ADD_CAPTION,  STR_018C_WINDOW_TITLE_DRAG_THIS },

   196 

   197 /* List of files */

   198 {      WWT_PANEL,      RESIZE_RB, 14,   0, 294,  14, 221, 0x0,                     STR_NULL },

   199 {      WWT_INSET,      RESIZE_RB, 14,   2, 292,  16, 219, 0x0,                     STR_NULL },

   200 {  WWT_SCROLLBAR,     RESIZE_LRB, 14, 295, 306,  14, 221, 0x0,                     STR_NULL },

   201 

   202 /* NewGRF file info */

   203 {      WWT_PANEL,     RESIZE_RTB, 14,   0, 306, 222, 324, 0x0,                     STR_NULL },

   204 

   205 { WWT_PUSHTXTBTN,     RESIZE_RTB, 14,   0, 146, 325, 336, STR_NEWGRF_ADD_FILE,     STR_NEWGRF_ADD_FILE_TIP },

   206 { WWT_PUSHTXTBTN,    RESIZE_LRTB, 14, 147, 294, 325, 336, STR_NEWGRF_RESCAN_FILES, STR_NEWGRF_RESCAN_FILES_TIP },

   207 {  WWT_RESIZEBOX,    RESIZE_LRTB, 14, 295, 306, 325, 336, 0x0,                     STR_RESIZE_BUTTON },

   208 {   WIDGETS_END },

   209 };

   210 

   211 

   212 static const WindowDesc _newgrf_add_dlg_desc = {

   213 	WDP_CENTER, WDP_CENTER, 307, 337,

   214 	WC_SAVELOAD, 0,

   215 	WDF_STD_TOOLTIPS | WDF_DEF_WIDGET | WDF_STD_BTN | WDF_UNCLICK_BUTTONS | WDF_RESIZABLE,

   216 	_newgrf_add_dlg_widgets,

   217 	NewGRFAddDlgWndProc,

   218 };

   219 

   220 

   221 /* 'NewGRF Settings' dialogue */

   222 typedef struct newgrf_d {

   223 	GRFConfig **orig_list; ///< grf list the window is shown with

   224 	GRFConfig **list;      ///< temporary grf list to which changes are made

   225 	GRFConfig *sel;        ///< selected grf item

   226 	bool editable;         ///< is the window editable

   227 	bool show_params;      ///< are the grf-parameters shown in the info-panel

   228 	bool execute;          ///< on pressing 'apply changes' are grf changes applied immediately, or only list is updated

   229 } newgrf_d;

   230 assert_compile(WINDOW_CUSTOM_SIZE >= sizeof(newgrf_d));

   231 

   232 

   233 enum ShowNewGRFStateWidgets {

   234 	SNGRFS_ADD = 3,

   235 	SNGRFS_REMOVE,

   236 	SNGRFS_MOVE_UP,

   237 	SNGRFS_MOVE_DOWN,

   238 	SNGRFS_FILE_LIST = 7,

   239 	SNGRFS_NEWGRF_INFO = 9,

   240 	SNGRFS_SET_PARAMETERS,

   241 	SNGRFS_APPLY_CHANGES,

   242 };

   243 

   244 

   245 static void SetupNewGRFState(Window *w)

   246 {

   247 	bool disable_all = WP(w, newgrf_d).sel == NULL || !WP(w, newgrf_d).editable;

   248 

   249 	SetWindowWidgetDisabledState(w, 3, !WP(w, newgrf_d).editable);

   250 	SetWindowWidgetsDisabledState(w, disable_all,

   251 		SNGRFS_REMOVE,

   252 		SNGRFS_MOVE_UP,

   253 		SNGRFS_MOVE_DOWN,

   254 		WIDGET_LIST_END

   255 	);

   256 	SetWindowWidgetDisabledState(w, SNGRFS_SET_PARAMETERS, !WP(w, newgrf_d).show_params || disable_all);

   257 

   258 	if (!disable_all) {

   259 		/* All widgets are now enabled, so disable widgets we can't use */

   260 		if (WP(w, newgrf_d).sel == *WP(w, newgrf_d).list) DisableWindowWidget(w, SNGRFS_MOVE_UP);

   261 		if (WP(w, newgrf_d).sel->next == NULL) DisableWindowWidget(w, SNGRFS_MOVE_DOWN);

   262 	}

   263 }

   264 

   265 

   266 static void SetupNewGRFWindow(Window *w)

   267 {

   268 	const GRFConfig *c;

   269 	int i;

   270 

   271 	for (c = *WP(w, newgrf_d).list, i = 0; c != NULL; c = c->next, i++);

   272 

   273 	w->vscroll.cap = (w->widget[SNGRFS_FILE_LIST].bottom - w->widget[SNGRFS_FILE_LIST].top) / 14 + 1;

   274 	SetVScrollCount(w, i);

   275 	SetWindowWidgetDisabledState(w, SNGRFS_APPLY_CHANGES, !WP(w, newgrf_d).editable);

   276 }

   277 

   278 

   279 /** Callback function for the newgrf 'apply changes' confirmation window

   280  * @param yes_clicked boolean value, true when yes was clicked, false otherwise */

   281 static void NewGRFConfirmationCallback(Window *w, bool confirmed)

   282 {

   283 	if (confirmed) {

   284 		newgrf_d *nd = &WP(w, newgrf_d);

   285 

   286 		CopyGRFConfigList(nd->orig_list, *nd->list);

   287 		ReloadNewGRFData();

   288 	}

   289 }

   290 

   291 

   292 static void NewGRFWndProc(Window *w, WindowEvent *e)

   293 {

   294 	switch (e->event) {

   295 		case WE_PAINT: {

   296 			const GRFConfig *c;

   297 			int i, y;

   298 

   299 			SetupNewGRFState(w);

   300 

   301 			DrawWindowWidgets(w);

   302 

   303 			/* Draw NewGRF list */

   304 			y = w->widget[SNGRFS_FILE_LIST].top;

   305 			for (c = *WP(w, newgrf_d).list, i = 0; c != NULL; c = c->next, i++) {

   306 				if (i >= w->vscroll.pos && i < w->vscroll.pos + w->vscroll.cap) {

   307 					const char *text = (c->name != NULL && strlen(c->name) != 0) ? c->name : c->filename;

   308 					PalSpriteID pal;

   309 

   310 					/* Pick a colour */

   311 					if (HASBIT(c->flags, GCF_NOT_FOUND) || HASBIT(c->flags, GCF_DISABLED)) {

   312 						pal = PALETTE_TO_RED;

   313 					} else if (HASBIT(c->flags, GCF_STATIC)) {

   314 						pal = PALETTE_TO_YELLOW;

   315 					} else if (HASBIT(c->flags, GCF_ACTIVATED)) {

   316 						pal = PALETTE_TO_GREEN;

   317 					} else {

   318 						pal = PALETTE_TO_BLUE;

   319 					}

   320 

   321 					DrawSprite(SPRITE_PALETTE(SPR_SQUARE | pal), 5, y + 2);

   322 					DoDrawString(text, 25, y + 3, WP(w, newgrf_d).sel == c ? 0xC : 0x10);

   323 					y += 14;

   324 				}

   325 			}

   326 

   327 			if (WP(w, newgrf_d).sel != NULL) {

   328 				/* Draw NewGRF file info */

   329 				const Widget *wi = &w->widget[SNGRFS_NEWGRF_INFO];

   330 				ShowNewGRFInfo(WP(w, newgrf_d).sel, wi->left + 2, wi->top + 2, wi->right - wi->left - 2, WP(w, newgrf_d).show_params);

   331 			}

   332 

   333 			break;

   334 		}

   335 

   336 		case WE_INVALIDATE_DATA:

   337 			SetupNewGRFWindow(w);

   338 			break;

   339 

   340 		case WE_CLICK:

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

   342 				case SNGRFS_ADD: { /* Add GRF */

   343 					GRFConfig **list = WP(w, newgrf_d).list;

   344 					Window *w;

   345 

   346 					DeleteWindowByClass(WC_SAVELOAD);

   347 					w = AllocateWindowDesc(&_newgrf_add_dlg_desc);

   348 					w->resize.step_height = 10;

   349 

   350 					WP(w, newgrf_add_d).list = list;

   351 					break;

   352 				}

   353 

   354 				case SNGRFS_REMOVE: { /* Remove GRF */

   355 					GRFConfig **pc, *c, *newsel;

   356 

   357 					/* Choose the next GRF file to be the selected file */

   358 					newsel = WP(w, newgrf_d).sel->next;

   359 

   360 					for (pc = WP(w, newgrf_d).list; (c = *pc) != NULL; pc = &c->next) {

   361 						/* If the new selection is empty (i.e. we're deleting the last item

   362 						 * in the list, pick the file just before the selected file */

   363 						if (newsel == NULL && c->next == WP(w, newgrf_d).sel) newsel = c;

   364 

   365 						if (c == WP(w, newgrf_d).sel) {

   366 							*pc = c->next;

   367 							free(c);

   368 							break;

   369 						}

   370 					}

   371 

   372 					WP(w, newgrf_d).sel = newsel;

   373 					SetupNewGRFWindow(w);

   374 					SetWindowDirty(w);

   375 					break;

   376 				}

   377 

   378 				case SNGRFS_MOVE_UP: { /* Move GRF up */

   379 					GRFConfig **pc, *c;

   380 					if (WP(w, newgrf_d).sel == NULL) break;

   381 

   382 					for (pc = WP(w, newgrf_d).list; (c = *pc) != NULL; pc = &c->next) {

   383 						if (c->next == WP(w, newgrf_d).sel) {

   384 							c->next = WP(w, newgrf_d).sel->next;

   385 							WP(w, newgrf_d).sel->next = c;

   386 							*pc = WP(w, newgrf_d).sel;

   387 							break;

   388 						}

   389 					}

   390 					SetWindowDirty(w);

   391 					break;

   392 				}

   393 

   394 				case SNGRFS_MOVE_DOWN: { /* Move GRF down */

   395 					GRFConfig **pc, *c;

   396 					if (WP(w, newgrf_d).sel == NULL) break;

   397 

   398 					for (pc = WP(w, newgrf_d).list; (c = *pc) != NULL; pc = &c->next) {

   399 						if (c == WP(w, newgrf_d).sel) {

   400 							*pc = c->next;

   401 							c->next = c->next->next;

   402 							(*pc)->next = c;

   403 							break;

   404 						}

   405 					}

   406 					SetWindowDirty(w);

   407 					break;

   408 				}

   409 

   410 				case SNGRFS_FILE_LIST: { /* Select a GRF */

   411 					GRFConfig *c;

   412 					uint i = (e->we.click.pt.y - w->widget[SNGRFS_FILE_LIST].top) / 14 + w->vscroll.pos;

   413 

   414 					for (c = *WP(w, newgrf_d).list; c != NULL && i > 0; c = c->next, i--);

   415 					WP(w, newgrf_d).sel = c;

   416 

   417 					SetWindowDirty(w);

   418 					break;

   419 				}

   420 

   421 				case SNGRFS_APPLY_CHANGES: /* Apply changes made to GRF list */

   422 					if (WP(w, newgrf_d).execute) {

   423 						ShowQuery(

   424 							STR_POPUP_CAUTION_CAPTION,

   425 							STR_NEWGRF_CONFIRMATION_TEXT,

   426 							w,

   427 							NewGRFConfirmationCallback

   428 						);

   429 					} else {

   430 						CopyGRFConfigList(WP(w, newgrf_d).orig_list, *WP(w, newgrf_d).list);

   431 					}

   432 					break;

   433 

   434 				case SNGRFS_SET_PARAMETERS: { /* Edit parameters */

   435 					char buff[512];

   436 					if (WP(w, newgrf_d).sel == NULL) break;

   437 

   438 					GRFBuildParamList(buff, WP(w, newgrf_d).sel, lastof(buff));

   439 					ShowQueryString(BindCString(buff), STR_NEWGRF_PARAMETER_QUERY, 63, 250, w, CS_ALPHANUMERAL);

   440 					break;

   441 				}

   442 			}

   443 			break;

   444 

   445 		case WE_ON_EDIT_TEXT:

   446 			if (e->we.edittext.str != NULL) {

   447 				/* Parse our new "int list" */

   448 				GRFConfig *c = WP(w, newgrf_d).sel;

   449 				c->num_params = parse_intlist(e->we.edittext.str, (int*)c->param, lengthof(c->param));

   450 

   451 				/* parse_intlist returns -1 on error */

   452 				if (c->num_params == (byte)-1) c->num_params = 0;

   453 			}

   454 			SetWindowDirty(w);

   455 			break;

   456 

   457 		case WE_DESTROY:

   458 			/* Remove the temporary copy of grf-list used in window */

   459 			ClearGRFConfigList(WP(w, newgrf_d).list);

   460 			break;

   461 

   462 		case WE_RESIZE:

   463 			w->vscroll.cap += e->we.sizing.diff.y / 14;

   464 			w->widget[SNGRFS_FILE_LIST].data = (w->vscroll.cap << 8) + 1;

   465 			break;

   466 	}

   467 }

   468 

   469 

   470 static const Widget _newgrf_widgets[] = {

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

   472 {    WWT_CAPTION, RESIZE_RIGHT, 10,  11, 299,   0,  13, STR_NEWGRF_SETTINGS_CAPTION, STR_018C_WINDOW_TITLE_DRAG_THIS },

   473 

   474 /* NewGRF file Add, Remove, Move up, Move down */

   475 {      WWT_PANEL, RESIZE_RIGHT, 10,   0, 299,  14,  29, STR_NULL,                    STR_NULL },

   476 { WWT_PUSHTXTBTN,  RESIZE_NONE,  3,  10,  79,  16,  27, STR_NEWGRF_ADD,              STR_NEWGRF_ADD_TIP },

   477 { WWT_PUSHTXTBTN,  RESIZE_NONE,  3,  80, 149,  16,  27, STR_NEWGRF_REMOVE,           STR_NEWGRF_REMOVE_TIP },

   478 { WWT_PUSHTXTBTN,  RESIZE_NONE,  3, 150, 219,  16,  27, STR_NEWGRF_MOVEUP,           STR_NEWGRF_MOVEUP_TIP },

   479 { WWT_PUSHTXTBTN,  RESIZE_NONE,  3, 220, 289,  16,  27, STR_NEWGRF_MOVEDOWN,         STR_NEWGRF_MOVEDOWN_TIP },

   480 

   481 /* NewGRF file list */

   482 {     WWT_MATRIX,    RESIZE_RB, 10,   0, 287,  30,  99, 0x501,                       STR_NEWGRF_FILE_TIP },

   483 {  WWT_SCROLLBAR,   RESIZE_LRB, 10, 288, 299,  30,  99, 0x0,                         STR_0190_SCROLL_BAR_SCROLLS_LIST },

   484 

   485 /* NewGRF file info */

   486 {      WWT_PANEL,   RESIZE_RTB, 10,   0, 299, 100, 212, STR_NULL,                    STR_NULL },

   487 

   488 /* Edit parameter and apply changes button... */

   489 { WWT_PUSHTXTBTN,    RESIZE_TB, 10,   0, 143, 213, 224, STR_NEWGRF_SET_PARAMETERS,   STR_NULL },

   490 { WWT_PUSHTXTBTN,   RESIZE_RTB, 10, 144, 287, 213, 224, STR_NEWGRF_APPLY_CHANGES,    STR_NULL },

   491 

   492 {  WWT_RESIZEBOX,  RESIZE_LRTB, 10, 288, 299, 213, 224, 0x0,                         STR_RESIZE_BUTTON },

   493 

   494 { WIDGETS_END },

   495 };

   496 

   497 

   498 static const WindowDesc _newgrf_desc = {

   499 	WDP_CENTER, WDP_CENTER, 300, 225,

   500 	WC_GAME_OPTIONS, 0,

   501 	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS | WDF_RESIZABLE,

   502 	_newgrf_widgets,

   503 	NewGRFWndProc,

   504 };

   505 

   506 

   507 /** Setup the NewGRF gui

   508  * @param editable allow the user to make changes to the grfconfig in the window

   509  * @param show_params show information about what parameters are set for the grf files

   510  * @param exec_changes if changes are made to the list (editable is true), apply these

   511  *        changes immediately or only update the list

   512  * @param config pointer to a linked-list of grfconfig's that will be shown */

   513 void ShowNewGRFSettings(bool editable, bool show_params, bool exec_changes, GRFConfig **config)

   514 {

   515 	static GRFConfig *local = NULL;

   516 	Window *w;

   517 

   518 	DeleteWindowByClass(WC_GAME_OPTIONS);

   519 	w = AllocateWindowDesc(&_newgrf_desc);

   520 	if (w == NULL) return;

   521 

   522 	w->resize.step_height = 14;

   523 	CopyGRFConfigList(&local, *config);

   524 

   525 	/* Clear selections */

   526 	WP(w, newgrf_d).sel         = NULL;

   527 	WP(w, newgrf_d).list        = &local;

   528 	WP(w, newgrf_d).orig_list   = config;

   529 	WP(w, newgrf_d).editable    = editable;

   530 	WP(w, newgrf_d).execute     = exec_changes;

   531 	WP(w, newgrf_d).show_params = show_params;

   532 

   533 	SetupNewGRFWindow(w);

   534 }