ncurses/win32con/win_driver.c

   1 /****************************************************************************
   2  * Copyright (c) 1998-2013,2014 Free Software Foundation, Inc.              *
   3  *                                                                          *
   4  * Permission is hereby granted, free of charge, to any person obtaining a  *
   5  * copy of this software and associated documentation files (the            *
   6  * "Software"), to deal in the Software without restriction, including      *
   7  * without limitation the rights to use, copy, modify, merge, publish,      *
   8  * distribute, distribute with modifications, sublicense, and/or sell       *
   9  * copies of the Software, and to permit persons to whom the Software is    *
  10  * furnished to do so, subject to the following conditions:                 *
  11  *                                                                          *
  12  * The above copyright notice and this permission notice shall be included  *
  13  * in all copies or substantial portions of the Software.                   *
  14  *                                                                          *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
  16  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
  18  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
  21  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
  22  *                                                                          *
  23  * Except as contained in this notice, the name(s) of the above copyright   *
  24  * holders shall not be used in advertising or otherwise to promote the     *
  25  * sale, use or other dealings in this Software without prior written       *
  26  * authorization.                                                           *
  27  ****************************************************************************/
  28
  29 /****************************************************************************
  30  *  Author: Juergen Pfeifer                                                 *
  31  *     and: Thomas E. Dickey                                                *
  32  ****************************************************************************/
  33
  34 /*
  35  * TODO - GetMousePos(POINT * result) from ntconio.c
  36  * TODO - implement nodelay
  37  */
  38
  39 #include <curses.priv.h>
  40 #define CUR my_term.type.
  41
  42 MODULE_ID("$Id: win_driver.c,v 1.28 2014/03/08 21:44:53 tom Exp $")
  43
  44 #define WINMAGIC NCDRV_MAGIC(NCDRV_WINCONSOLE)
  45
  46 #define EXP_OPTIMIZE 0
  47
  48 #define okConsoleHandle(TCB) (TCB != 0 && !InvalidConsoleHandle(TCB->hdl))
  49
  50 #define AssertTCB() assert(TCB != 0 && (TCB->magic == WINMAGIC))
  51 #define SetSP()     assert(TCB->csp != 0); sp = TCB->csp; (void) sp
  52
  53 #define GenMap(vKey,key) MAKELONG(key, vKey)
  54
  55 #define AdjustY(p) ((p)->buffered ? 0 : (int) (p)->SBI.srWindow.Top)
  56
  57 static const LONG keylist[] =
  58 {
  59     GenMap(VK_PRIOR, KEY_PPAGE),
  60     GenMap(VK_NEXT, KEY_NPAGE),
  61     GenMap(VK_END, KEY_END),
  62     GenMap(VK_HOME, KEY_HOME),
  63     GenMap(VK_LEFT, KEY_LEFT),
  64     GenMap(VK_UP, KEY_UP),
  65     GenMap(VK_RIGHT, KEY_RIGHT),
  66     GenMap(VK_DOWN, KEY_DOWN),
  67     GenMap(VK_DELETE, KEY_DC),
  68     GenMap(VK_INSERT, KEY_IC)
  69 };
  70 #define N_INI ((int)(sizeof(keylist)/sizeof(keylist[0])))
  71 #define FKEYS 24
  72 #define MAPSIZE (FKEYS + N_INI)
  73 #define NUMPAIRS 64
  74
  75 typedef struct props {
  76     CONSOLE_SCREEN_BUFFER_INFO SBI;
  77     bool progMode;
  78     TERM_HANDLE lastOut;
  79     DWORD map[MAPSIZE];
  80     DWORD rmap[MAPSIZE];
  81     WORD pairs[NUMPAIRS];
  82     bool buffered;              /* normally allocate console-buffer */
  83     bool window_only;           /* ..if not, we save buffer or window-only */
  84     COORD origin;
  85     CHAR_INFO *save_screen;
  86 } Properties;
  87
  88 #define PropOf(TCB) ((Properties*)TCB->prop)
  89
  90 int
  91 _nc_mingw_ioctl(int fd GCC_UNUSED,
  92                 long int request GCC_UNUSED,
  93                 struct termios *arg GCC_UNUSED)
  94 {
  95     return 0;
  96     endwin();
  97     fprintf(stderr, "TERMINFO currently not supported on Windows.\n");
  98     exit(1);
  99 }
 100
 101 static WORD
 102 MapColor(bool fore, int color)
 103 {
 104     static const int _cmap[] =
 105     {0, 4, 2, 6, 1, 5, 3, 7};
 106     int a;
 107     if (color < 0 || color > 7)
 108         a = fore ? 7 : 0;
 109     else
 110         a = _cmap[color];
 111     if (!fore)
 112         a = a << 4;
 113     return (WORD) a;
 114 }
 115
 116 static WORD
 117 MapAttr(TERMINAL_CONTROL_BLOCK * TCB, WORD res, attr_t ch)
 118 {
 119     if (ch & A_COLOR) {
 120         int p;
 121         SCREEN *sp;
 122
 123         AssertTCB();
 124         SetSP();
 125         p = PairNumber(ch);
 126         if (p > 0 && p < NUMPAIRS && TCB != 0 && sp != 0) {
 127             WORD a;
 128             a = PropOf(TCB)->pairs[p];
 129             res = (WORD) ((res & 0xff00) | a);
 130         }
 131     }
 132
 133     if (ch & A_REVERSE) {
 134         res = (WORD) ((res & 0xff00) |
 135                       (((res & 0x07) << 4) |
 136                        ((res & 0x70) >> 4)));
 137     }
 138
 139     if (ch & A_STANDOUT) {
 140         res = (WORD) ((res & 0xff00) |
 141                       (((res & 0x07) << 4) |
 142                        ((res & 0x70) >> 4)) |
 143                       BACKGROUND_INTENSITY);
 144     }
 145
 146     if (ch & A_BOLD)
 147         res |= FOREGROUND_INTENSITY;
 148
 149     if (ch & A_DIM)
 150         res |= BACKGROUND_INTENSITY;
 151
 152     return res;
 153 }
 154
 155 #if USE_WIDEC_SUPPORT
 156 /*
 157  * TODO: support surrogate pairs
 158  * TODO: support combining characters
 159  * TODO: support acsc
 160  * TODO: check wcwidth of base character, fill if needed for double-width
 161  * TODO: _nc_wacs should be part of sp.
 162  */
 163 static BOOL
 164 con_write16(TERMINAL_CONTROL_BLOCK * TCB, int y, int x, cchar_t *str, int limit)
 165 {
 166     int actual = 0;
 167     CHAR_INFO ci[limit];
 168     COORD loc, siz;
 169     SMALL_RECT rec;
 170     int i;
 171     cchar_t ch;
 172     SCREEN *sp;
 173     Properties *p = PropOf(TCB);
 174
 175     AssertTCB();
 176
 177     SetSP();
 178
 179     for (i = actual = 0; i < limit; i++) {
 180         ch = str[i];
 181         if (isWidecExt(ch))
 182             continue;
 183         ci[actual].Char.UnicodeChar = CharOf(ch);
 184         ci[actual].Attributes = MapAttr(TCB,
 185                                         PropOf(TCB)->SBI.wAttributes,
 186                                         AttrOf(ch));
 187         if (AttrOf(ch) & A_ALTCHARSET) {
 188             if (_nc_wacs) {
 189                 int which = CharOf(ch);
 190                 if (which > 0
 191                     && which < ACS_LEN
 192                     && CharOf(_nc_wacs[which]) != 0) {
 193                     ci[actual].Char.UnicodeChar = CharOf(_nc_wacs[which]);
 194                 } else {
 195                     ci[actual].Char.UnicodeChar = ' ';
 196                 }
 197             }
 198         }
 199         ++actual;
 200     }
 201
 202     loc.X = (short) 0;
 203     loc.Y = (short) 0;
 204     siz.X = (short) actual;
 205     siz.Y = 1;
 206
 207     rec.Left = (short) x;
 208     rec.Top = (SHORT) (y + AdjustY(p));
 209     rec.Right = (short) (x + limit - 1);
 210     rec.Bottom = rec.Top;
 211
 212     return WriteConsoleOutputW(TCB->hdl, ci, siz, loc, &rec);
 213 }
 214 #define con_write(tcb, y, x, str, n) con_write16(tcb, y, x, str, n)
 215 #else
 216 static BOOL
 217 con_write8(TERMINAL_CONTROL_BLOCK * TCB, int y, int x, chtype *str, int n)
 218 {
 219     CHAR_INFO ci[n];
 220     COORD loc, siz;
 221     SMALL_RECT rec;
 222     int i;
 223     chtype ch;
 224     SCREEN *sp;
 225
 226     AssertTCB();
 227
 228     SetSP();
 229
 230     for (i = 0; i < n; i++) {
 231         ch = str[i];
 232         ci[i].Char.AsciiChar = ChCharOf(ch);
 233         ci[i].Attributes = MapAttr(TCB,
 234                                    PropOf(TCB)->SBI.wAttributes,
 235                                    ChAttrOf(ch));
 236         if (ChAttrOf(ch) & A_ALTCHARSET) {
 237             if (sp->_acs_map)
 238                 ci[i].Char.AsciiChar =
 239                 ChCharOf(NCURSES_SP_NAME(_nc_acs_char) (sp, ChCharOf(ch)));
 240         }
 241     }
 242
 243     loc.X = (short) 0;
 244     loc.Y = (short) 0;
 245     siz.X = (short) n;
 246     siz.Y = 1;
 247
 248     rec.Left = (short) x;
 249     rec.Top = (short) y;
 250     rec.Right = (short) (x + n - 1);
 251     rec.Bottom = rec.Top;
 252
 253     return WriteConsoleOutput(TCB->hdl, ci, siz, loc, &rec);
 254 }
 255 #define con_write(tcb, y, x, str, n) con_write8(tcb, y, x, str, n)
 256 #endif
 257
 258 #if EXP_OPTIMIZE
 259 /*
 260  * Comparing new/current screens, determine the last column-index for a change
 261  * beginning on the given row,col position.  Unlike a serial terminal, there is
 262  * no cost for "moving" the "cursor" on the line as we update it.
 263  */
 264 static int
 265 find_end_of_change(SCREEN *sp, int row, int col)
 266 {
 267     int result = col;
 268     struct ldat *curdat = CurScreen(sp)->_line + row;
 269     struct ldat *newdat = NewScreen(sp)->_line + row;
 270
 271     while (col <= newdat->lastchar) {
 272 #if USE_WIDEC_SUPPORT
 273         if (isWidecExt(curdat->text[col]) || isWidecExt(newdat->text[col])) {
 274             result = col;
 275         } else if (memcmp(&curdat->text[col],
 276                           &newdat->text[col],
 277                           sizeof(curdat->text[0]))) {
 278             result = col;
 279         } else {
 280             break;
 281         }
 282 #else
 283         if (curdat->text[col] != newdat->text[col]) {
 284             result = col;
 285         } else {
 286             break;
 287         }
 288 #endif
 289         ++col;
 290     }
 291     return result;
 292 }
 293
 294 /*
 295  * Given a row,col position at the end of a change-chunk, look for the
 296  * beginning of the next change-chunk.
 297  */
 298 static int
 299 find_next_change(SCREEN *sp, int row, int col)
 300 {
 301     struct ldat *curdat = CurScreen(sp)->_line + row;
 302     struct ldat *newdat = NewScreen(sp)->_line + row;
 303     int result = newdat->lastchar + 1;
 304
 305     while (++col <= newdat->lastchar) {
 306 #if USE_WIDEC_SUPPORT
 307         if (isWidecExt(curdat->text[col]) != isWidecExt(newdat->text[col])) {
 308             result = col;
 309             break;
 310         } else if (memcmp(&curdat->text[col],
 311                           &newdat->text[col],
 312                           sizeof(curdat->text[0]))) {
 313             result = col;
 314             break;
 315         }
 316 #else
 317         if (curdat->text[col] != newdat->text[col]) {
 318             result = col;
 319             break;
 320         }
 321 #endif
 322     }
 323     return result;
 324 }
 325
 326 #define EndChange(first) \
 327         find_end_of_change(sp, y, first)
 328 #define NextChange(last) \
 329         find_next_change(sp, y, last)
 330
 331 #endif /* EXP_OPTIMIZE */
 332
 333 #define MARK_NOCHANGE(win,row) \
 334                 win->_line[row].firstchar = _NOCHANGE; \
 335                 win->_line[row].lastchar  = _NOCHANGE
 336
 337 static void
 338 selectActiveHandle(TERMINAL_CONTROL_BLOCK * TCB)
 339 {
 340     if (PropOf(TCB)->lastOut != TCB->hdl) {
 341         PropOf(TCB)->lastOut = TCB->hdl;
 342         SetConsoleActiveScreenBuffer(PropOf(TCB)->lastOut);
 343     }
 344 }
 345
 346 static bool
 347 restore_original_screen(TERMINAL_CONTROL_BLOCK * TCB)
 348 {
 349     COORD bufferCoord;
 350     SMALL_RECT writeRegion;
 351     Properties *p = PropOf(TCB);
 352     bool result = FALSE;
 353
 354     if (p->window_only) {
 355         writeRegion.Top = p->SBI.srWindow.Top;
 356         writeRegion.Left = p->SBI.srWindow.Left;
 357         writeRegion.Bottom = p->SBI.srWindow.Bottom;
 358         writeRegion.Right = p->SBI.srWindow.Right;
 359         T(("... restoring window"));
 360     } else {
 361         writeRegion.Top = 0;
 362         writeRegion.Left = 0;
 363         writeRegion.Bottom = (SHORT) (p->SBI.dwSize.Y - 1);
 364         writeRegion.Right = (SHORT) (p->SBI.dwSize.X - 1);
 365         T(("... restoring entire buffer"));
 366     }
 367
 368     bufferCoord.X = bufferCoord.Y = 0;
 369
 370     if (WriteConsoleOutput(TCB->hdl,
 371                            p->save_screen,
 372                            p->SBI.dwSize,
 373                            bufferCoord,
 374                            &writeRegion)) {
 375         result = TRUE;
 376         mvcur(-1, -1, LINES - 2, 0);
 377     }
 378     T(("... restore original screen contents %s", result ? "ok" : "err"));
 379     return result;
 380 }
 381
 382 static int
 383 drv_doupdate(TERMINAL_CONTROL_BLOCK * TCB)
 384 {
 385     int result = ERR;
 386     int y, nonempty, n, x0, x1, Width, Height;
 387     SCREEN *sp;
 388
 389     AssertTCB();
 390     SetSP();
 391
 392     T((T_CALLED("win32con::drv_doupdate(%p)"), TCB));
 393     if (okConsoleHandle(TCB)) {
 394
 395         Width = screen_columns(sp);
 396         Height = screen_lines(sp);
 397         nonempty = min(Height, NewScreen(sp)->_maxy + 1);
 398
 399         if ((CurScreen(sp)->_clear || NewScreen(sp)->_clear)) {
 400             int x;
 401 #if USE_WIDEC_SUPPORT
 402             cchar_t empty[Width];
 403             wchar_t blank[2] =
 404             {
 405                 L' ', L'\0'
 406             };
 407
 408             for (x = 0; x < Width; x++)
 409                 setcchar(&empty[x], blank, 0, 0, 0);
 410 #else
 411             chtype empty[Width];
 412
 413             for (x = 0; x < Width; x++)
 414                 empty[x] = ' ';
 415 #endif
 416
 417             for (y = 0; y < nonempty; y++) {
 418                 con_write(TCB, y, 0, empty, Width);
 419                 memcpy(empty,
 420                        CurScreen(sp)->_line[y].text,
 421                        (size_t) Width * sizeof(empty[0]));
 422             }
 423             CurScreen(sp)->_clear = FALSE;
 424             NewScreen(sp)->_clear = FALSE;
 425             touchwin(NewScreen(sp));
 426         }
 427
 428         for (y = 0; y < nonempty; y++) {
 429             x0 = NewScreen(sp)->_line[y].firstchar;
 430             if (x0 != _NOCHANGE) {
 431 #if EXP_OPTIMIZE
 432                 int x2;
 433                 int limit = NewScreen(sp)->_line[y].lastchar;
 434                 while ((x1 = EndChange(x0)) <= limit) {
 435                     while ((x2 = NextChange(x1)) <= limit && x2 <= (x1 + 2)) {
 436                         x1 = x2;
 437                     }
 438                     n = x1 - x0 + 1;
 439                     memcpy(&CurScreen(sp)->_line[y].text[x0],
 440                            &NewScreen(sp)->_line[y].text[x0],
 441                            n * sizeof(CurScreen(sp)->_line[y].text[x0]));
 442                     con_write(TCB,
 443                               y,
 444                               x0,
 445                               &CurScreen(sp)->_line[y].text[x0], n);
 446                     x0 = NextChange(x1);
 447                 }
 448
 449                 /* mark line changed successfully */
 450                 if (y <= NewScreen(sp)->_maxy) {
 451                     MARK_NOCHANGE(NewScreen(sp), y);
 452                 }
 453                 if (y <= CurScreen(sp)->_maxy) {
 454                     MARK_NOCHANGE(CurScreen(sp), y);
 455                 }
 456 #else
 457                 x1 = NewScreen(sp)->_line[y].lastchar;
 458                 n = x1 - x0 + 1;
 459                 if (n > 0) {
 460                     memcpy(&CurScreen(sp)->_line[y].text[x0],
 461                            &NewScreen(sp)->_line[y].text[x0],
 462                            (size_t) n * sizeof(CurScreen(sp)->_line[y].text[x0]));
 463                     con_write(TCB,
 464                               y,
 465                               x0,
 466                               &CurScreen(sp)->_line[y].text[x0], n);
 467
 468                     /* mark line changed successfully */
 469                     if (y <= NewScreen(sp)->_maxy) {
 470                         MARK_NOCHANGE(NewScreen(sp), y);
 471                     }
 472                     if (y <= CurScreen(sp)->_maxy) {
 473                         MARK_NOCHANGE(CurScreen(sp), y);
 474                     }
 475                 }
 476 #endif
 477             }
 478         }
 479
 480         /* put everything back in sync */
 481         for (y = nonempty; y <= NewScreen(sp)->_maxy; y++) {
 482             MARK_NOCHANGE(NewScreen(sp), y);
 483         }
 484         for (y = nonempty; y <= CurScreen(sp)->_maxy; y++) {
 485             MARK_NOCHANGE(CurScreen(sp), y);
 486         }
 487
 488         if (!NewScreen(sp)->_leaveok) {
 489             CurScreen(sp)->_curx = NewScreen(sp)->_curx;
 490             CurScreen(sp)->_cury = NewScreen(sp)->_cury;
 491
 492             TCB->drv->td_hwcur(TCB,
 493                                0, 0,
 494                                CurScreen(sp)->_cury, CurScreen(sp)->_curx);
 495         }
 496         selectActiveHandle(TCB);
 497         result = OK;
 498     }
 499     returnCode(result);
 500 }
 501
 502 static bool
 503 drv_CanHandle(TERMINAL_CONTROL_BLOCK * TCB,
 504               const char *tname,
 505               int *errret GCC_UNUSED)
 506 {
 507     bool code = FALSE;
 508
 509     T((T_CALLED("win32con::drv_CanHandle(%p)"), TCB));
 510
 511     assert(TCB != 0);
 512     assert(tname != 0);
 513
 514     TCB->magic = WINMAGIC;
 515     if (*tname == 0 || *tname == 0 || *tname == '#') {
 516         code = TRUE;
 517     } else {
 518         TERMINAL my_term;
 519         int status;
 520
 521         code = FALSE;
 522 #if (NCURSES_USE_DATABASE || NCURSES_USE_TERMCAP)
 523         status = _nc_setup_tinfo(tname, &my_term.type);
 524 #else
 525         status = TGETENT_NO;
 526 #endif
 527         if (status != TGETENT_YES) {
 528             const TERMTYPE *fallback = _nc_fallback(tname);
 529
 530             if (fallback) {
 531                 my_term.type = *fallback;
 532                 status = TGETENT_YES;
 533             } else if (!strcmp(tname, "unknown")) {
 534                 code = TRUE;
 535             }
 536         }
 537         if (status == TGETENT_YES) {
 538             if (generic_type || hard_copy)
 539                 code = TRUE;
 540         }
 541     }
 542
 543     if (code) {
 544         if ((TCB->term.type.Booleans) == 0) {
 545             _nc_init_termtype(&(TCB->term.type));
 546         }
 547     }
 548
 549     returnBool(code);
 550 }
 551
 552 static int
 553 drv_dobeepflash(TERMINAL_CONTROL_BLOCK * TCB,
 554                 int beepFlag GCC_UNUSED)
 555 {
 556     SCREEN *sp;
 557     int res = ERR;
 558
 559     AssertTCB();
 560     SetSP();
 561
 562     return res;
 563 }
 564
 565 static int
 566 drv_print(TERMINAL_CONTROL_BLOCK * TCB,
 567           char *data GCC_UNUSED,
 568           int len GCC_UNUSED)
 569 {
 570     SCREEN *sp;
 571
 572     AssertTCB();
 573     SetSP();
 574
 575     return ERR;
 576 }
 577
 578 static int
 579 drv_defaultcolors(TERMINAL_CONTROL_BLOCK * TCB,
 580                   int fg GCC_UNUSED,
 581                   int bg GCC_UNUSED)
 582 {
 583     SCREEN *sp;
 584     int code = ERR;
 585
 586     AssertTCB();
 587     SetSP();
 588
 589     return (code);
 590 }
 591
 592 static bool
 593 get_SBI(TERMINAL_CONTROL_BLOCK * TCB)
 594 {
 595     bool rc = FALSE;
 596     Properties *p = PropOf(TCB);
 597     if (GetConsoleScreenBufferInfo(TCB->hdl, &(p->SBI))) {
 598         T(("GetConsoleScreenBufferInfo"));
 599         T(("... buffer(X:%d Y:%d)",
 600            p->SBI.dwSize.X,
 601            p->SBI.dwSize.Y));
 602         T(("... window(X:%d Y:%d)",
 603            p->SBI.dwMaximumWindowSize.X,
 604            p->SBI.dwMaximumWindowSize.Y));
 605         T(("... cursor(X:%d Y:%d)",
 606            p->SBI.dwCursorPosition.X,
 607            p->SBI.dwCursorPosition.Y));
 608         T(("... display(Top:%d Bottom:%d Left:%d Right:%d)",
 609            p->SBI.srWindow.Top,
 610            p->SBI.srWindow.Bottom,
 611            p->SBI.srWindow.Left,
 612            p->SBI.srWindow.Right));
 613         if (p->buffered) {
 614             p->origin.X = 0;
 615             p->origin.Y = 0;
 616         } else {
 617             p->origin.X = p->SBI.srWindow.Left;
 618             p->origin.Y = p->SBI.srWindow.Top;
 619         }
 620         rc = TRUE;
 621     } else {
 622         T(("GetConsoleScreenBufferInfo ERR"));
 623     }
 624     return rc;
 625 }
 626
 627 static void
 628 drv_setcolor(TERMINAL_CONTROL_BLOCK * TCB,
 629              int fore,
 630              int color,
 631              int (*outc) (SCREEN *, int) GCC_UNUSED)
 632 {
 633     AssertTCB();
 634
 635     if (okConsoleHandle(TCB) &&
 636         PropOf(TCB) != 0) {
 637         WORD a = MapColor(fore, color);
 638         a |= (WORD) ((PropOf(TCB)->SBI.wAttributes) & (fore ? 0xfff8 : 0xff8f));
 639         SetConsoleTextAttribute(TCB->hdl, a);
 640         get_SBI(TCB);
 641     }
 642 }
 643
 644 static bool
 645 drv_rescol(TERMINAL_CONTROL_BLOCK * TCB)
 646 {
 647     bool res = FALSE;
 648
 649     AssertTCB();
 650     if (okConsoleHandle(TCB)) {
 651         WORD a = FOREGROUND_BLUE | FOREGROUND_RED | FOREGROUND_GREEN;
 652         SetConsoleTextAttribute(TCB->hdl, a);
 653         get_SBI(TCB);
 654         res = TRUE;
 655     }
 656     return res;
 657 }
 658
 659 static bool
 660 drv_rescolors(TERMINAL_CONTROL_BLOCK * TCB)
 661 {
 662     int result = FALSE;
 663     SCREEN *sp;
 664
 665     AssertTCB();
 666     SetSP();
 667
 668     return result;
 669 }
 670
 671 static int
 672 drv_size(TERMINAL_CONTROL_BLOCK * TCB, int *Lines, int *Cols)
 673 {
 674     int result = ERR;
 675
 676     AssertTCB();
 677
 678     T((T_CALLED("win32con::drv_size(%p)"), TCB));
 679
 680     if (okConsoleHandle(TCB) &&
 681         PropOf(TCB) != 0 &&
 682         Lines != NULL &&
 683         Cols != NULL) {
 684         if (PropOf(TCB)->buffered) {
 685             *Lines = (int) (PropOf(TCB)->SBI.dwSize.Y);
 686             *Cols = (int) (PropOf(TCB)->SBI.dwSize.X);
 687         } else {
 688             *Lines = (int) (PropOf(TCB)->SBI.srWindow.Bottom + 1 -
 689                             PropOf(TCB)->SBI.srWindow.Top);
 690             *Cols = (int) (PropOf(TCB)->SBI.srWindow.Right + 1 -
 691                            PropOf(TCB)->SBI.srWindow.Left);
 692         }
 693         result = OK;
 694     }
 695     returnCode(result);
 696 }
 697
 698 static int
 699 drv_setsize(TERMINAL_CONTROL_BLOCK * TCB GCC_UNUSED,
 700             int l GCC_UNUSED,
 701             int c GCC_UNUSED)
 702 {
 703     AssertTCB();
 704     return ERR;
 705 }
 706
 707 static int
 708 drv_sgmode(TERMINAL_CONTROL_BLOCK * TCB, int setFlag, TTY * buf)
 709 {
 710     DWORD dwFlag = 0;
 711     tcflag_t iflag;
 712     tcflag_t lflag;
 713
 714     AssertTCB();
 715
 716     if (TCB == 0 || buf == NULL)
 717         return ERR;
 718
 719     if (setFlag) {
 720         iflag = buf->c_iflag;
 721         lflag = buf->c_lflag;
 722
 723         GetConsoleMode(TCB->inp, &dwFlag);
 724
 725         if (lflag & ICANON)
 726             dwFlag |= ENABLE_LINE_INPUT;
 727         else
 728             dwFlag &= (DWORD) (~ENABLE_LINE_INPUT);
 729
 730         if (lflag & ECHO)
 731             dwFlag |= ENABLE_ECHO_INPUT;
 732         else
 733             dwFlag &= (DWORD) (~ENABLE_ECHO_INPUT);
 734
 735         if (iflag & BRKINT)
 736             dwFlag |= ENABLE_PROCESSED_INPUT;
 737         else
 738             dwFlag &= (DWORD) (~ENABLE_PROCESSED_INPUT);
 739
 740         dwFlag |= ENABLE_MOUSE_INPUT;
 741
 742         buf->c_iflag = iflag;
 743         buf->c_lflag = lflag;
 744         SetConsoleMode(TCB->inp, dwFlag);
 745         TCB->term.Nttyb = *buf;
 746     } else {
 747         iflag = TCB->term.Nttyb.c_iflag;
 748         lflag = TCB->term.Nttyb.c_lflag;
 749         GetConsoleMode(TCB->inp, &dwFlag);
 750
 751         if (dwFlag & ENABLE_LINE_INPUT)
 752             lflag |= ICANON;
 753         else
 754             lflag &= (tcflag_t) (~ICANON);
 755
 756         if (dwFlag & ENABLE_ECHO_INPUT)
 757             lflag |= ECHO;
 758         else
 759             lflag &= (tcflag_t) (~ECHO);
 760
 761         if (dwFlag & ENABLE_PROCESSED_INPUT)
 762             iflag |= BRKINT;
 763         else
 764             iflag &= (tcflag_t) (~BRKINT);
 765
 766         TCB->term.Nttyb.c_iflag = iflag;
 767         TCB->term.Nttyb.c_lflag = lflag;
 768
 769         *buf = TCB->term.Nttyb;
 770     }
 771     return OK;
 772 }
 773
 774 static int
 775 drv_mode(TERMINAL_CONTROL_BLOCK * TCB, int progFlag, int defFlag)
 776 {
 777     SCREEN *sp;
 778     TERMINAL *_term = (TERMINAL *) TCB;
 779     int code = ERR;
 780
 781     AssertTCB();
 782     sp = TCB->csp;
 783
 784     T((T_CALLED("win32con::drv_mode(%p, prog=%d, def=%d)"), TCB, progFlag, defFlag));
 785     PropOf(TCB)->progMode = progFlag;
 786     PropOf(TCB)->lastOut = progFlag ? TCB->hdl : TCB->out;
 787     SetConsoleActiveScreenBuffer(PropOf(TCB)->lastOut);
 788
 789     if (progFlag) /* prog mode */  {
 790         if (defFlag) {
 791             if ((drv_sgmode(TCB, FALSE, &(_term->Nttyb)) == OK)) {
 792                 _term->Nttyb.c_oflag &= (tcflag_t) (~OFLAGS_TABS);
 793                 code = OK;
 794             }
 795         } else {
 796             /* reset_prog_mode */
 797             if (drv_sgmode(TCB, TRUE, &(_term->Nttyb)) == OK) {
 798                 if (sp) {
 799                     if (sp->_keypad_on)
 800                         _nc_keypad(sp, TRUE);
 801                 }
 802                 code = OK;
 803             }
 804         }
 805     } else {                    /* shell mode */
 806         if (defFlag) {
 807             /* def_shell_mode */
 808             if (drv_sgmode(TCB, FALSE, &(_term->Ottyb)) == OK) {
 809                 code = OK;
 810             }
 811         } else {
 812             /* reset_shell_mode */
 813             if (sp) {
 814                 _nc_keypad(sp, FALSE);
 815                 NCURSES_SP_NAME(_nc_flush) (sp);
 816             }
 817             code = drv_sgmode(TCB, TRUE, &(_term->Ottyb));
 818             if (!PropOf(TCB)->buffered) {
 819                 if (!restore_original_screen(TCB))
 820                     code = ERR;
 821             }
 822         }
 823     }
 824
 825     return (code);
 826 }
 827
 828 static void
 829 drv_screen_init(SCREEN *sp GCC_UNUSED)
 830 {
 831 }
 832
 833 static void
 834 drv_wrap(SCREEN *sp GCC_UNUSED)
 835 {
 836 }
 837
 838 static int
 839 rkeycompare(const void *el1, const void *el2)
 840 {
 841     WORD key1 = (LOWORD((*((const LONG *) el1)))) & 0x7fff;
 842     WORD key2 = (LOWORD((*((const LONG *) el2)))) & 0x7fff;
 843
 844     return ((key1 < key2) ? -1 : ((key1 == key2) ? 0 : 1));
 845 }
 846
 847 static int
 848 keycompare(const void *el1, const void *el2)
 849 {
 850     WORD key1 = HIWORD((*((const LONG *) el1)));
 851     WORD key2 = HIWORD((*((const LONG *) el2)));
 852
 853     return ((key1 < key2) ? -1 : ((key1 == key2) ? 0 : 1));
 854 }
 855
 856 static int
 857 MapKey(TERMINAL_CONTROL_BLOCK * TCB, WORD vKey)
 858 {
 859     WORD nKey = 0;
 860     void *res;
 861     LONG key = GenMap(vKey, 0);
 862     int code = -1;
 863
 864     AssertTCB();
 865
 866     res = bsearch(&key,
 867                   PropOf(TCB)->map,
 868                   (size_t) (N_INI + FKEYS),
 869                   sizeof(keylist[0]),
 870                   keycompare);
 871     if (res) {
 872         key = *((LONG *) res);
 873         nKey = LOWORD(key);
 874         code = (int) (nKey & 0x7fff);
 875         if (nKey & 0x8000)
 876             code = -code;
 877     }
 878     return code;
 879 }
 880
 881 static void
 882 drv_release(TERMINAL_CONTROL_BLOCK * TCB)
 883 {
 884     T((T_CALLED("win32con::drv_release(%p)"), TCB));
 885
 886     AssertTCB();
 887     if (TCB->prop)
 888         free(TCB->prop);
 889
 890     returnVoid;
 891 }
 892
 893 /*
 894  * Attempt to save the screen contents.  PDCurses does this if
 895  * PDC_RESTORE_SCREEN is set, giving the same visual appearance on restoration
 896  * as if the library had allocated a console buffer.
 897  */
 898 static bool
 899 save_original_screen(TERMINAL_CONTROL_BLOCK * TCB)
 900 {
 901     bool result = FALSE;
 902     Properties *p = PropOf(TCB);
 903     COORD bufferSize;
 904     COORD bufferCoord;
 905     SMALL_RECT readRegion;
 906     size_t want;
 907
 908     bufferSize.X = p->SBI.dwSize.X;
 909     bufferSize.Y = p->SBI.dwSize.Y;
 910     want = (size_t) (bufferSize.X * bufferSize.Y);
 911
 912     if ((p->save_screen = malloc(want * sizeof(CHAR_INFO))) != 0) {
 913         bufferCoord.X = bufferCoord.Y = 0;
 914
 915         readRegion.Top = 0;
 916         readRegion.Left = 0;
 917         readRegion.Bottom = (SHORT) (bufferSize.Y - 1);
 918         readRegion.Right = (SHORT) (bufferSize.X - 1);
 919
 920         T(("... reading console buffer %dx%d into %d,%d - %d,%d at %d,%d",
 921            bufferSize.Y, bufferSize.X,
 922            readRegion.Top,
 923            readRegion.Left,
 924            readRegion.Bottom,
 925            readRegion.Right,
 926            bufferCoord.Y,
 927            bufferCoord.X));
 928
 929         if (ReadConsoleOutput(TCB->hdl,
 930                               p->save_screen,
 931                               bufferSize,
 932                               bufferCoord,
 933                               &readRegion)) {
 934             result = TRUE;
 935         } else {
 936             T((" error %#lx", (unsigned long) GetLastError()));
 937             FreeAndNull(p->save_screen);
 938
 939             bufferSize.X = (SHORT) (p->SBI.srWindow.Right
 940                                     - p->SBI.srWindow.Left + 1);
 941             bufferSize.Y = (SHORT) (p->SBI.srWindow.Bottom
 942                                     - p->SBI.srWindow.Top + 1);
 943             want = (size_t) (bufferSize.X * bufferSize.Y);
 944
 945             if ((p->save_screen = malloc(want * sizeof(CHAR_INFO))) != 0) {
 946                 bufferCoord.X = bufferCoord.Y = 0;
 947
 948                 readRegion.Top = p->SBI.srWindow.Top;
 949                 readRegion.Left = p->SBI.srWindow.Left;
 950                 readRegion.Bottom = p->SBI.srWindow.Bottom;
 951                 readRegion.Right = p->SBI.srWindow.Right;
 952
 953                 T(("... reading console window %dx%d into %d,%d - %d,%d at %d,%d",
 954                    bufferSize.Y, bufferSize.X,
 955                    readRegion.Top,
 956                    readRegion.Left,
 957                    readRegion.Bottom,
 958                    readRegion.Right,
 959                    bufferCoord.Y,
 960                    bufferCoord.X));
 961
 962                 if (ReadConsoleOutput(TCB->hdl,
 963                                       p->save_screen,
 964                                       bufferSize,
 965                                       bufferCoord,
 966                                       &readRegion)) {
 967                     result = TRUE;
 968                     p->window_only = TRUE;
 969                 } else {
 970                     T((" error %#lx", (unsigned long) GetLastError()));
 971                 }
 972             }
 973         }
 974     }
 975
 976     T(("... save original screen contents %s", result ? "ok" : "err"));
 977     return result;
 978 }
 979
 980 static void
 981 drv_init(TERMINAL_CONTROL_BLOCK * TCB)
 982 {
 983     DWORD num_buttons;
 984
 985     T((T_CALLED("win32con::drv_init(%p)"), TCB));
 986
 987     AssertTCB();
 988
 989     if (TCB) {
 990         BOOL b = AllocConsole();
 991         WORD a;
 992         int i;
 993         bool buffered = TRUE;
 994
 995         if (!b)
 996             b = AttachConsole(ATTACH_PARENT_PROCESS);
 997
 998         TCB->inp = GetStdHandle(STD_INPUT_HANDLE);
 999         TCB->out = GetStdHandle(STD_OUTPUT_HANDLE);
1000
1001         if (getenv("NCGDB") || getenv("NCURSES_CONSOLE2")) {
1002             TCB->hdl = TCB->out;
1003             buffered = FALSE;
1004         } else {
1005             TCB->hdl = CreateConsoleScreenBuffer(GENERIC_READ | GENERIC_WRITE,
1006                                                  0,
1007                                                  NULL,
1008                                                  CONSOLE_TEXTMODE_BUFFER,
1009                                                  NULL);
1010         }
1011
1012         if (InvalidConsoleHandle(TCB->hdl)) {
1013             returnVoid;
1014         } else if ((TCB->prop = typeCalloc(Properties, 1)) != 0) {
1015             PropOf(TCB)->buffered = buffered;
1016             PropOf(TCB)->window_only = FALSE;
1017             if (!get_SBI(TCB)) {
1018                 FreeAndNull(TCB->prop);         /* force error in drv_size */
1019                 returnVoid;
1020             }
1021             if (!buffered) {
1022                 if (!save_original_screen(TCB)) {
1023                     FreeAndNull(TCB->prop);     /* force error in drv_size */
1024                     returnVoid;
1025                 }
1026             }
1027         }
1028
1029         TCB->info.initcolor = TRUE;
1030         TCB->info.canchange = FALSE;
1031         TCB->info.hascolor = TRUE;
1032         TCB->info.caninit = TRUE;
1033
1034         TCB->info.maxpairs = NUMPAIRS;
1035         TCB->info.maxcolors = 8;
1036         TCB->info.numlabels = 0;
1037         TCB->info.labelwidth = 0;
1038         TCB->info.labelheight = 0;
1039         TCB->info.nocolorvideo = 1;
1040         TCB->info.tabsize = 8;
1041
1042         if (GetNumberOfConsoleMouseButtons(&num_buttons)) {
1043             T(("mouse has %ld buttons", num_buttons));
1044             TCB->info.numbuttons = (int) num_buttons;
1045         } else {
1046             TCB->info.numbuttons = 1;
1047         }
1048
1049         TCB->info.defaultPalette = _nc_cga_palette;
1050
1051         for (i = 0; i < (N_INI + FKEYS); i++) {
1052             if (i < N_INI)
1053                 PropOf(TCB)->rmap[i] = PropOf(TCB)->map[i] = (DWORD) keylist[i];
1054             else
1055                 PropOf(TCB)->rmap[i] = PropOf(TCB)->map[i] =
1056                     (DWORD) GenMap((VK_F1 + (i - N_INI)), (KEY_F(1) + (i - N_INI)));
1057         }
1058         qsort(PropOf(TCB)->map,
1059               (size_t) (MAPSIZE),
1060               sizeof(keylist[0]),
1061               keycompare);
1062         qsort(PropOf(TCB)->rmap,
1063               (size_t) (MAPSIZE),
1064               sizeof(keylist[0]),
1065               rkeycompare);
1066
1067         a = MapColor(true, COLOR_WHITE) | MapColor(false, COLOR_BLACK);
1068         for (i = 0; i < NUMPAIRS; i++)
1069             PropOf(TCB)->pairs[i] = a;
1070     }
1071     returnVoid;
1072 }
1073
1074 static void
1075 drv_initpair(TERMINAL_CONTROL_BLOCK * TCB,
1076              int pair,
1077              int f,
1078              int b)
1079 {
1080     SCREEN *sp;
1081
1082     AssertTCB();
1083     SetSP();
1084
1085     if ((pair > 0) && (pair < NUMPAIRS) && (f >= 0) && (f < 8)
1086         && (b >= 0) && (b < 8)) {
1087         PropOf(TCB)->pairs[pair] = MapColor(true, f) | MapColor(false, b);
1088     }
1089 }
1090
1091 static void
1092 drv_initcolor(TERMINAL_CONTROL_BLOCK * TCB,
1093               int color GCC_UNUSED,
1094               int r GCC_UNUSED,
1095               int g GCC_UNUSED,
1096               int b GCC_UNUSED)
1097 {
1098     SCREEN *sp;
1099
1100     AssertTCB();
1101     SetSP();
1102 }
1103
1104 static void
1105 drv_do_color(TERMINAL_CONTROL_BLOCK * TCB,
1106              int old_pair GCC_UNUSED,
1107              int pair GCC_UNUSED,
1108              int reverse GCC_UNUSED,
1109              int (*outc) (SCREEN *, int) GCC_UNUSED
1110 )
1111 {
1112     SCREEN *sp;
1113
1114     AssertTCB();
1115     SetSP();
1116 }
1117
1118 static void
1119 drv_initmouse(TERMINAL_CONTROL_BLOCK * TCB)
1120 {
1121     SCREEN *sp;
1122
1123     AssertTCB();
1124     SetSP();
1125
1126     sp->_mouse_type = M_TERM_DRIVER;
1127 }
1128
1129 static int
1130 drv_testmouse(TERMINAL_CONTROL_BLOCK * TCB, int delay)
1131 {
1132     int rc = 0;
1133     SCREEN *sp;
1134
1135     AssertTCB();
1136     SetSP();
1137
1138     if (sp->_drv_mouse_head < sp->_drv_mouse_tail) {
1139         rc = TW_MOUSE;
1140     } else {
1141         rc = TCBOf(sp)->drv->td_twait(TCBOf(sp),
1142                                       TWAIT_MASK,
1143                                       delay,
1144                                       (int *) 0
1145                                       EVENTLIST_2nd(evl));
1146     }
1147
1148     return rc;
1149 }
1150
1151 static int
1152 drv_mvcur(TERMINAL_CONTROL_BLOCK * TCB,
1153           int yold GCC_UNUSED, int xold GCC_UNUSED,
1154           int y, int x)
1155 {
1156     int ret = ERR;
1157     if (okConsoleHandle(TCB)) {
1158         Properties *p = PropOf(TCB);
1159         COORD loc;
1160         loc.X = (short) x;
1161         loc.Y = (short) (y + AdjustY(p));
1162         SetConsoleCursorPosition(TCB->hdl, loc);
1163         ret = OK;
1164     }
1165     return ret;
1166 }
1167
1168 static void
1169 drv_hwlabel(TERMINAL_CONTROL_BLOCK * TCB,
1170             int labnum GCC_UNUSED,
1171             char *text GCC_UNUSED)
1172 {
1173     SCREEN *sp;
1174
1175     AssertTCB();
1176     SetSP();
1177 }
1178
1179 static void
1180 drv_hwlabelOnOff(TERMINAL_CONTROL_BLOCK * TCB,
1181                  int OnFlag GCC_UNUSED)
1182 {
1183     SCREEN *sp;
1184
1185     AssertTCB();
1186     SetSP();
1187 }
1188
1189 static chtype
1190 drv_conattr(TERMINAL_CONTROL_BLOCK * TCB GCC_UNUSED)
1191 {
1192     chtype res = A_NORMAL;
1193     res |= (A_BOLD | A_DIM | A_REVERSE | A_STANDOUT | A_COLOR);
1194     return res;
1195 }
1196
1197 static void
1198 drv_setfilter(TERMINAL_CONTROL_BLOCK * TCB)
1199 {
1200     SCREEN *sp;
1201
1202     AssertTCB();
1203     SetSP();
1204 }
1205
1206 static void
1207 drv_initacs(TERMINAL_CONTROL_BLOCK * TCB,
1208             chtype *real_map GCC_UNUSED,
1209             chtype *fake_map GCC_UNUSED)
1210 {
1211 #define DATA(a,b) { a, b }
1212     static struct {
1213         int acs_code;
1214         int use_code;
1215     } table[] = {
1216         DATA('a', 0xb1),        /* ACS_CKBOARD  */
1217             DATA('f', 0xf8),    /* ACS_DEGREE   */
1218             DATA('g', 0xf1),    /* ACS_PLMINUS  */
1219             DATA('j', 0xd9),    /* ACS_LRCORNER */
1220             DATA('l', 0xda),    /* ACS_ULCORNER */
1221             DATA('k', 0xbf),    /* ACS_URCORNER */
1222             DATA('m', 0xc0),    /* ACS_LLCORNER */
1223             DATA('n', 0xc5),    /* ACS_PLUS     */
1224             DATA('q', 0xc4),    /* ACS_HLINE    */
1225             DATA('t', 0xc3),    /* ACS_LTEE     */
1226             DATA('u', 0xb4),    /* ACS_RTEE     */
1227             DATA('v', 0xc1),    /* ACS_BTEE     */
1228             DATA('w', 0xc2),    /* ACS_TTEE     */
1229             DATA('x', 0xb3),    /* ACS_VLINE    */
1230             DATA('y', 0xf3),    /* ACS_LEQUAL   */
1231             DATA('z', 0xf2),    /* ACS_GEQUAL   */
1232             DATA('0', 0xdb),    /* ACS_BLOCK    */
1233             DATA('{', 0xe3),    /* ACS_PI       */
1234             DATA('}', 0x9c),    /* ACS_STERLING */
1235             DATA(',', 0xae),    /* ACS_LARROW   */
1236             DATA('+', 0xaf),    /* ACS_RARROW   */
1237             DATA('~', 0xf9),    /* ACS_BULLET   */
1238     };
1239 #undef DATA
1240     unsigned n;
1241
1242     SCREEN *sp;
1243     AssertTCB();
1244     SetSP();
1245
1246     for (n = 0; n < SIZEOF(table); ++n) {
1247         real_map[table[n].acs_code] = (chtype) table[n].use_code | A_ALTCHARSET;
1248         if (sp != 0)
1249             sp->_screen_acs_map[table[n].acs_code] = TRUE;
1250     }
1251 }
1252
1253 static ULONGLONG
1254 tdiff(FILETIME fstart, FILETIME fend)
1255 {
1256     ULARGE_INTEGER ustart;
1257     ULARGE_INTEGER uend;
1258     ULONGLONG diff;
1259
1260     ustart.LowPart = fstart.dwLowDateTime;
1261     ustart.HighPart = fstart.dwHighDateTime;
1262     uend.LowPart = fend.dwLowDateTime;
1263     uend.HighPart = fend.dwHighDateTime;
1264
1265     diff = (uend.QuadPart - ustart.QuadPart) / 10000;
1266     return diff;
1267 }
1268
1269 static int
1270 Adjust(int milliseconds, int diff)
1271 {
1272     if (milliseconds == INFINITY)
1273         return milliseconds;
1274     milliseconds -= diff;
1275     if (milliseconds < 0)
1276         milliseconds = 0;
1277     return milliseconds;
1278 }
1279
1280 #define BUTTON_MASK (FROM_LEFT_1ST_BUTTON_PRESSED | \
1281                      FROM_LEFT_2ND_BUTTON_PRESSED | \
1282                      FROM_LEFT_3RD_BUTTON_PRESSED | \
1283                      FROM_LEFT_4TH_BUTTON_PRESSED | \
1284                      RIGHTMOST_BUTTON_PRESSED)
1285
1286 static int
1287 decode_mouse(TERMINAL_CONTROL_BLOCK * TCB, int mask)
1288 {
1289     SCREEN *sp;
1290     int result = 0;
1291
1292     AssertTCB();
1293     SetSP();
1294
1295     if (mask & FROM_LEFT_1ST_BUTTON_PRESSED)
1296         result |= BUTTON1_PRESSED;
1297     if (mask & FROM_LEFT_2ND_BUTTON_PRESSED)
1298         result |= BUTTON2_PRESSED;
1299     if (mask & FROM_LEFT_3RD_BUTTON_PRESSED)
1300         result |= BUTTON3_PRESSED;
1301     if (mask & FROM_LEFT_4TH_BUTTON_PRESSED)
1302         result |= BUTTON4_PRESSED;
1303
1304     if (mask & RIGHTMOST_BUTTON_PRESSED) {
1305         switch (TCB->info.numbuttons) {
1306         case 1:
1307             result |= BUTTON1_PRESSED;
1308             break;
1309         case 2:
1310             result |= BUTTON2_PRESSED;
1311             break;
1312         case 3:
1313             result |= BUTTON3_PRESSED;
1314             break;
1315         case 4:
1316             result |= BUTTON4_PRESSED;
1317             break;
1318         }
1319     }
1320
1321     return result;
1322 }
1323
1324 static int
1325 drv_twait(TERMINAL_CONTROL_BLOCK * TCB,
1326           int mode,
1327           int milliseconds,
1328           int *timeleft
1329           EVENTLIST_2nd(_nc_eventlist * evl))
1330 {
1331     SCREEN *sp;
1332     INPUT_RECORD inp_rec;
1333     BOOL b;
1334     DWORD nRead = 0, rc = (DWORD) (-1);
1335     int code = 0;
1336     FILETIME fstart;
1337     FILETIME fend;
1338     int diff;
1339     bool isImmed = (milliseconds == 0);
1340
1341 #define CONSUME() ReadConsoleInput(TCB->inp,&inp_rec,1,&nRead)
1342
1343     AssertTCB();
1344     SetSP();
1345
1346     TR(TRACE_IEVENT, ("start twait: %d milliseconds, mode: %d",
1347                       milliseconds, mode));
1348
1349     if (milliseconds < 0)
1350         milliseconds = INFINITY;
1351
1352     memset(&inp_rec, 0, sizeof(inp_rec));
1353
1354     while (true) {
1355         GetSystemTimeAsFileTime(&fstart);
1356         rc = WaitForSingleObject(TCB->inp, (DWORD) milliseconds);
1357         GetSystemTimeAsFileTime(&fend);
1358         diff = (int) tdiff(fstart, fend);
1359         milliseconds = Adjust(milliseconds, diff);
1360
1361         if (!isImmed && milliseconds == 0)
1362             break;
1363
1364         if (rc == WAIT_OBJECT_0) {
1365             if (mode) {
1366                 b = GetNumberOfConsoleInputEvents(TCB->inp, &nRead);
1367                 if (b && nRead > 0) {
1368                     b = PeekConsoleInput(TCB->inp, &inp_rec, 1, &nRead);
1369                     if (b && nRead > 0) {
1370                         switch (inp_rec.EventType) {
1371                         case KEY_EVENT:
1372                             if (mode & TW_INPUT) {
1373                                 WORD vk = inp_rec.Event.KeyEvent.wVirtualKeyCode;
1374                                 char ch = inp_rec.Event.KeyEvent.uChar.AsciiChar;
1375
1376                                 if (inp_rec.Event.KeyEvent.bKeyDown) {
1377                                     if (0 == ch) {
1378                                         int nKey = MapKey(TCB, vk);
1379                                         if ((nKey < 0) || FALSE == sp->_keypad_on) {
1380                                             CONSUME();
1381                                             continue;
1382                                         }
1383                                     }
1384                                     code = TW_INPUT;
1385                                     goto end;
1386                                 } else {
1387                                     CONSUME();
1388                                 }
1389                             }
1390                             continue;
1391                         case MOUSE_EVENT:
1392                             if (decode_mouse(TCB,
1393                                              (inp_rec.Event.MouseEvent.dwButtonState
1394                                               & BUTTON_MASK)) == 0) {
1395                                 CONSUME();
1396                             } else if (mode & TW_MOUSE) {
1397                                 code = TW_MOUSE;
1398                                 goto end;
1399                             }
1400                             continue;
1401                         default:
1402                             selectActiveHandle(TCB);
1403                             continue;
1404                         }
1405                     }
1406                 }
1407             }
1408             continue;
1409         } else {
1410             if (rc != WAIT_TIMEOUT) {
1411                 code = -1;
1412                 break;
1413             } else {
1414                 code = 0;
1415                 break;
1416             }
1417         }
1418     }
1419   end:
1420
1421     TR(TRACE_IEVENT, ("end twait: returned %d (%d), remaining time %d msec",
1422                       code, errno, milliseconds));
1423
1424     if (timeleft)
1425         *timeleft = milliseconds;
1426
1427     return code;
1428 }
1429
1430 static bool
1431 handle_mouse(TERMINAL_CONTROL_BLOCK * TCB, MOUSE_EVENT_RECORD mer)
1432 {
1433     SCREEN *sp;
1434     MEVENT work;
1435     bool result = FALSE;
1436
1437     AssertTCB();
1438     SetSP();
1439
1440     sp->_drv_mouse_old_buttons = sp->_drv_mouse_new_buttons;
1441     sp->_drv_mouse_new_buttons = mer.dwButtonState & BUTTON_MASK;
1442
1443     /*
1444      * We're only interested if the button is pressed or released.
1445      * FIXME: implement continuous event-tracking.
1446      */
1447     if (sp->_drv_mouse_new_buttons != sp->_drv_mouse_old_buttons) {
1448         Properties *p = PropOf(TCB);
1449
1450         memset(&work, 0, sizeof(work));
1451
1452         if (sp->_drv_mouse_new_buttons) {
1453
1454             work.bstate |= (mmask_t) decode_mouse(TCB, sp->_drv_mouse_new_buttons);
1455
1456         } else {
1457
1458             /* cf: BUTTON_PRESSED, BUTTON_RELEASED */
1459             work.bstate |= (mmask_t) (decode_mouse(TCB,
1460                                                    sp->_drv_mouse_old_buttons)
1461                                       >> 1);
1462
1463             result = TRUE;
1464         }
1465
1466         work.x = mer.dwMousePosition.X;
1467         work.y = mer.dwMousePosition.Y - AdjustY(p);
1468
1469         sp->_drv_mouse_fifo[sp->_drv_mouse_tail] = work;
1470         sp->_drv_mouse_tail += 1;
1471     }
1472
1473     return result;
1474 }
1475
1476 static int
1477 drv_read(TERMINAL_CONTROL_BLOCK * TCB, int *buf)
1478 {
1479     SCREEN *sp;
1480     int n = 1;
1481     INPUT_RECORD inp_rec;
1482     BOOL b;
1483     DWORD nRead;
1484     WORD vk;
1485
1486     AssertTCB();
1487     assert(buf);
1488     SetSP();
1489
1490     memset(&inp_rec, 0, sizeof(inp_rec));
1491
1492     T((T_CALLED("win32con::drv_read(%p)"), TCB));
1493     while ((b = ReadConsoleInput(TCB->inp, &inp_rec, 1, &nRead))) {
1494         if (b && nRead > 0) {
1495             if (inp_rec.EventType == KEY_EVENT) {
1496                 if (!inp_rec.Event.KeyEvent.bKeyDown)
1497                     continue;
1498                 *buf = (int) inp_rec.Event.KeyEvent.uChar.AsciiChar;
1499                 vk = inp_rec.Event.KeyEvent.wVirtualKeyCode;
1500                 if (*buf == 0) {
1501                     if (sp->_keypad_on) {
1502                         *buf = MapKey(TCB, vk);
1503                         if (0 > (*buf))
1504                             continue;
1505                         else
1506                             break;
1507                     } else
1508                         continue;
1509                 } else {        /* *buf != 0 */
1510                     break;
1511                 }
1512             } else if (inp_rec.EventType == MOUSE_EVENT) {
1513                 if (handle_mouse(TCB, inp_rec.Event.MouseEvent)) {
1514                     *buf = KEY_MOUSE;
1515                     break;
1516                 }
1517             }
1518             continue;
1519         }
1520     }
1521     returnCode(n);
1522 }
1523
1524 static int
1525 drv_nap(TERMINAL_CONTROL_BLOCK * TCB GCC_UNUSED, int ms)
1526 {
1527     T((T_CALLED("win32con::drv_nap(%p, %d)"), TCB, ms));
1528     Sleep((DWORD) ms);
1529     returnCode(OK);
1530 }
1531
1532 static bool
1533 drv_kyExist(TERMINAL_CONTROL_BLOCK * TCB, int keycode)
1534 {
1535     SCREEN *sp;
1536     WORD nKey;
1537     void *res;
1538     bool found = FALSE;
1539     LONG key = GenMap(0, (WORD) keycode);
1540
1541     AssertTCB();
1542     SetSP();
1543
1544     AssertTCB();
1545
1546     T((T_CALLED("win32con::drv_kyExist(%p, %d)"), TCB, keycode));
1547     res = bsearch(&key,
1548                   PropOf(TCB)->rmap,
1549                   (size_t) (N_INI + FKEYS),
1550                   sizeof(keylist[0]),
1551                   rkeycompare);
1552     if (res) {
1553         key = *((LONG *) res);
1554         nKey = LOWORD(key);
1555         if (!(nKey & 0x8000))
1556             found = TRUE;
1557     }
1558     returnCode(found);
1559 }
1560
1561 static int
1562 drv_kpad(TERMINAL_CONTROL_BLOCK * TCB, int flag GCC_UNUSED)
1563 {
1564     SCREEN *sp;
1565     int code = ERR;
1566
1567     AssertTCB();
1568     sp = TCB->csp;
1569
1570     T((T_CALLED("win32con::drv_kpad(%p, %d)"), TCB, flag));
1571     if (sp) {
1572         code = OK;
1573     }
1574     returnCode(code);
1575 }
1576
1577 static int
1578 drv_keyok(TERMINAL_CONTROL_BLOCK * TCB, int keycode, int flag)
1579 {
1580     int code = ERR;
1581     SCREEN *sp;
1582     WORD nKey;
1583     WORD vKey;
1584     void *res;
1585     LONG key = GenMap(0, (WORD) keycode);
1586
1587     AssertTCB();
1588     SetSP();
1589
1590     T((T_CALLED("win32con::drv_keyok(%p, %d, %d)"), TCB, keycode, flag));
1591     if (sp) {
1592         res = bsearch(&key,
1593                       PropOf(TCB)->rmap,
1594                       (size_t) (N_INI + FKEYS),
1595                       sizeof(keylist[0]),
1596                       rkeycompare);
1597         if (res) {
1598             key = *((LONG *) res);
1599             vKey = HIWORD(key);
1600             nKey = (LOWORD(key)) & 0x7fff;
1601             if (!flag)
1602                 nKey |= 0x8000;
1603             *(LONG *) res = GenMap(vKey, nKey);
1604         }
1605     }
1606     returnCode(code);
1607 }
1608
1609 NCURSES_EXPORT_VAR (TERM_DRIVER) _nc_WIN_DRIVER = {
1610     FALSE,
1611         drv_CanHandle,          /* CanHandle */
1612         drv_init,               /* init */
1613         drv_release,            /* release */
1614         drv_size,               /* size */
1615         drv_sgmode,             /* sgmode */
1616         drv_conattr,            /* conattr */
1617         drv_mvcur,              /* hwcur */
1618         drv_mode,               /* mode */
1619         drv_rescol,             /* rescol */
1620         drv_rescolors,          /* rescolors */
1621         drv_setcolor,           /* color */
1622         drv_dobeepflash,        /* DoBeepFlash */
1623         drv_initpair,           /* initpair */
1624         drv_initcolor,          /* initcolor */
1625         drv_do_color,           /* docolor */
1626         drv_initmouse,          /* initmouse */
1627         drv_testmouse,          /* testmouse */
1628         drv_setfilter,          /* setfilter */
1629         drv_hwlabel,            /* hwlabel */
1630         drv_hwlabelOnOff,       /* hwlabelOnOff */
1631         drv_doupdate,           /* update */
1632         drv_defaultcolors,      /* defaultcolors */
1633         drv_print,              /* print */
1634         drv_size,               /* getsize */
1635         drv_setsize,            /* setsize */
1636         drv_initacs,            /* initacs */
1637         drv_screen_init,        /* scinit */
1638         drv_wrap,               /* scexit */
1639         drv_twait,              /* twait */
1640         drv_read,               /* read */
1641         drv_nap,                /* nap */
1642         drv_kpad,               /* kpad */
1643         drv_keyok,              /* kyOk */
1644         drv_kyExist             /* kyExist */
1645 };