919 enum {

   920 	NEWGRF_WND_PROC_OFFSET_TOP_WIDGET = 14,

   921 	NEWGRF_WND_PROC_ROWSIZE = 14

   922 };

   923 

   924 static void NewgrfWndProc(Window *w, WindowEvent *e)

   925 {

   926 	static GRFFile *_sel_grffile;

   927 	switch (e->event) {

   928 	case WE_PAINT: {

   929 		int x, y = NEWGRF_WND_PROC_OFFSET_TOP_WIDGET;

   930 		uint16 i = 0;

   931 		GRFFile *c = _first_grffile;

   932 

   933 		DrawWindowWidgets(w);

   934 

   935 		if (_first_grffile == NULL) { // no grf sets installed

   936 			DrawStringMultiCenter(140, 210, STR_NEWGRF_NO_FILES_INSTALLED, 250);

   937 			break;

   938 		}

   939 

   940 		// draw list of all grf files

   941 		while (c != NULL) {

   942 			if (i >= w->vscroll.pos) { // draw files according to scrollbar position

   943 				bool h = (_sel_grffile == c);

   944 				// show highlighted item with a different background and highlighted text

   945 				if (h) GfxFillRect(1, y + 1, 267, y + 12, 156);

   946 				// XXX - will be grf name later

   947 				DoDrawString(c->filename, 25, y + 2, h ? 0xC : 0x10);

   948 				DrawSprite(SPRITE_PALETTE(SPR_SQUARE | PALETTE_TO_RED), 5, y + 2);

   949 				y += NEWGRF_WND_PROC_ROWSIZE;

   950 			}

   951 

   952 			c = c->next;

   953 			if (++i == w->vscroll.cap + w->vscroll.pos) break; // stop after displaying 12 items

   954 		}

   955 

   956 // 		DoDrawString(_sel_grffile->setname, 120, 200, 0x01); // draw grf name

   957 

   958 		if (_sel_grffile == NULL) { // no grf file selected yet

   959 			DrawStringMultiCenter(140, 210, STR_NEWGRF_TIP, 250);

   960 		} else {

   961 			// draw filename

   962 			x = DrawString(5, 199, STR_NEWGRF_FILENAME, 0);

   963 			DoDrawString(_sel_grffile->filename, x + 2, 199, 0x01);

   964 

   965 			// draw grf id

   966 			x = DrawString(5, 209, STR_NEWGRF_GRF_ID, 0);

   967 			snprintf(_userstring, lengthof(_userstring), "%08X", (uint32)BSWAP32(_sel_grffile->grfid));

   968 			DrawString(x + 2, 209, STR_SPEC_USERSTRING, 0x01);

   969 		}

   970 	} break;

   971 

   972 	case WE_CLICK:

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

   974 		case 3: { // select a grf file

   975 			int y = (e->we.click.pt.y - NEWGRF_WND_PROC_OFFSET_TOP_WIDGET) / NEWGRF_WND_PROC_ROWSIZE;

   976 

   977 			if (y >= w->vscroll.cap) return; // click out of bounds

   978 

   979 			y += w->vscroll.pos;

   980 

   981 			if (y >= w->vscroll.count) return;

   982 

   983 			_sel_grffile = _first_grffile;

   984 			// get selected grf-file

   985 			while (y-- != 0) _sel_grffile = _sel_grffile->next;

   986 

   987 			SetWindowDirty(w);

   988 		} break;

   989 		case 9: /* Cancel button */

   990 			DeleteWindowById(WC_GAME_OPTIONS, 0);

   991 			break;

   992 		} break;

   993 

   994 #if 0 /* Parameter edit box not used yet */

   995 	case WE_TIMEOUT:

   996 		WP(w,def_d).data_2 = 0;

   997 		SetWindowDirty(w);

   998 		break;

   999 

  1000 	case WE_ON_EDIT_TEXT: {

  1001 		if (*e->edittext.str) {

  1002 			SetWindowDirty(w);

  1003 		}

  1004 		break;

  1005 	}

  1006 #endif

  1007 

  1008 	case WE_DESTROY:

  1009 		_sel_grffile = NULL;

  1010 		DeleteWindowById(WC_QUERY_STRING, 0);

  1011 		break;

  1012 	}

  1013 }

  1014 

  1015 static const Widget _newgrf_widgets[] = {

  1016 {   WWT_CLOSEBOX,   RESIZE_NONE,    14,     0,    10,     0,    13, STR_00C5,                    STR_018B_CLOSE_WINDOW},

  1017 {    WWT_CAPTION,   RESIZE_NONE,    14,    11,   279,     0,    13, STR_NEWGRF_SETTINGS_CAPTION, STR_018C_WINDOW_TITLE_DRAG_THIS},

  1018 {      WWT_PANEL,   RESIZE_NONE,    14,     0,   279,   183,   276, 0x0,                         STR_NULL},

  1019 

  1020 {     WWT_MATRIX,   RESIZE_NONE,    14,     0,   267,    14,   182, 0xC01, /*small rows*/        STR_NEWGRF_TIP},

  1021 {  WWT_SCROLLBAR,   RESIZE_NONE,    14,   268,   279,    14,   182, 0x0,                         STR_0190_SCROLL_BAR_SCROLLS_LIST},

  1022 

  1023 {    WWT_TEXTBTN,   RESIZE_NONE,    14,   147,   158,   244,   255, STR_0188,                    STR_NULL},

  1024 {    WWT_TEXTBTN,   RESIZE_NONE,    14,   159,   170,   244,   255, STR_0189,                    STR_NULL},

  1025 {    WWT_TEXTBTN,   RESIZE_NONE,    14,   175,   274,   244,   255, STR_NEWGRF_SET_PARAMETERS,   STR_NULL},

  1026 

  1027 { WWT_PUSHTXTBTN,   RESIZE_NONE,     3,     5,   138,   261,   272, STR_NEWGRF_APPLY_CHANGES,    STR_NULL},

  1028 { WWT_PUSHTXTBTN,   RESIZE_NONE,     3,   142,   274,   261,   272, STR_012E_CANCEL,             STR_NULL},

  1029 {   WIDGETS_END},

  1030 };

  1031 

  1032 static const WindowDesc _newgrf_desc = {

  1033 	WDP_CENTER, WDP_CENTER, 280, 277,

  1034 	WC_GAME_OPTIONS,0,

  1035 	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS,

  1036 	_newgrf_widgets,

  1037 	NewgrfWndProc,

  1038 };

  1039 

  1040 void ShowNewgrf(void)

  1041 {

  1042 	const GRFFile* c;

  1043 	Window *w;

  1044 	uint count;

  1045 

  1046 	DeleteWindowById(WC_GAME_OPTIONS, 0);

  1047 	w = AllocateWindowDesc(&_newgrf_desc);

  1048 

  1049 	count = 0;

  1050 	for (c = _first_grffile; c != NULL; c = c->next) count++;

  1051 

  1052 	w->vscroll.cap = 12;

  1053 	w->vscroll.count = count;

  1054 	w->vscroll.pos = 0;

  1055 	DisableWindowWidget(w, 5);  // Small up arrow

  1056 	DisableWindowWidget(w, 6);  // Small sown arrow

  1057 	DisableWindowWidget(w, 7);  // Set parameter button

  1058 }