dlls/user/text.c

   1 /*
   2  * USER text functions
   3  *
   4  * Copyright 1993, 1994 Alexandre Julliard
   5  *
   6  */
   7
   8 #include <string.h>
   9
  10 #include "windef.h"
  11 #include "wingdi.h"
  12 #include "wine/winuser16.h"
  13 #include "wine/unicode.h"
  14 #include "winbase.h"
  15 #include "winerror.h"
  16 #include "winnls.h"
  17 #include "user.h"
  18 #include "debugtools.h"
  19
  20 DEFAULT_DEBUG_CHANNEL(text);
  21
  22 #define TAB     9
  23 #define LF     10
  24 #define CR     13
  25 #define SPACE  32
  26 #define PREFIX 38
  27
  28 #define ELLIPSIS "..."
  29 #define FORWARD_SLASH '/'
  30 #define BACK_SLASH '\\'
  31
  32 static const WCHAR SPACEW[] = {' ', 0};
  33 static const WCHAR oW[] = {'o', 0};
  34 static const WCHAR ELLIPSISW[] = {'.','.','.', 0};
  35 static const WCHAR FORWARD_SLASHW[] = {'/', 0};
  36 static const WCHAR BACK_SLASHW[] = {'\\', 0};
  37
  38 #define SWAP_INT(a,b)  { int t = a; a = b; b = t; }
  39
  40 static int tabstop = 8;
  41 static int tabwidth;
  42 static int spacewidth;
  43 static int prefix_offset;
  44
  45 /*********************************************************************
  46  *  Return next line of text from a string.
  47  *
  48  * hdc - handle to DC.
  49  * str - string to parse into lines.
  50  * count - length of str.
  51  * dest - destination in which to return line.
  52  * len - dest buffer size in chars on input, copied length into dest on output.
  53  * width - maximum width of line in pixels.
  54  * format - format type passed to DrawText.
  55  *
  56  * Returns pointer to next char in str after end of the line
  57  * or NULL if end of str reached.
  58  *
  59  * FIXME:
  60  * GetTextExtentPoint is used to get the width of each character,
  61  * rather than GetCharABCWidth...  So the whitespace between
  62  * characters is ignored, and the reported len is too great.
  63  */
  64 static const WCHAR *TEXT_NextLineW( HDC hdc, const WCHAR *str, int *count,
  65                                   WCHAR *dest, int *len, int width, WORD format)
  66 {
  67     int i = 0, j = 0, k;
  68     int plen = 0;
  69     int numspaces;
  70     SIZE size;
  71     int lasttab = 0;
  72     int wb_i = 0, wb_j = 0, wb_count = 0;
  73     int maxl = *len;
  74
  75     while (*count && j < maxl)
  76     {
  77         switch (str[i])
  78         {
  79         case CR:
  80         case LF:
  81             if (!(format & DT_SINGLELINE))
  82             {
  83                 if ((*count > 1) && (str[i] == CR) && (str[i+1] == LF))
  84                 {
  85                     (*count)--;
  86                     i++;
  87                 }
  88                 i++;
  89                 *len = j;
  90                 (*count)--;
  91                 return (&str[i]);
  92             }
  93             dest[j++] = str[i++];
  94             if (!(format & DT_NOCLIP) || !(format & DT_NOPREFIX) ||
  95                 (format & DT_WORDBREAK))
  96             {
  97                 if (!GetTextExtentPointW(hdc, &dest[j-1], 1, &size))
  98                     return NULL;
  99                 plen += size.cx;
 100             }
 101             break;
 102
 103         case PREFIX:
 104             if (!(format & DT_NOPREFIX) && *count > 1)
 105                 {
 106                 if (str[++i] == PREFIX)
 107                     (*count)--;
 108                 else {
 109                     prefix_offset = j;
 110                     break;
 111                 }
 112             }
 113             dest[j++] = str[i++];
 114             if (!(format & DT_NOCLIP) || !(format & DT_NOPREFIX) ||
 115                 (format & DT_WORDBREAK))
 116             {
 117                 if (!GetTextExtentPointW(hdc, &dest[j-1], 1, &size))
 118                     return NULL;
 119                 plen += size.cx;
 120             }
 121             break;
 122
 123         case TAB:
 124             if (format & DT_EXPANDTABS)
 125             {
 126                 wb_i = ++i;
 127                 wb_j = j;
 128                 wb_count = *count;
 129
 130                 if (!GetTextExtentPointW(hdc, &dest[lasttab], j - lasttab, &size))
 131                     return NULL;
 132
 133                 numspaces = (tabwidth - size.cx) / spacewidth;
 134                 for (k = 0; k < numspaces; k++)
 135                     dest[j++] = SPACE;
 136                 plen += tabwidth - size.cx;
 137                 lasttab = wb_j + numspaces;
 138             }
 139             else
 140             {
 141                 dest[j++] = str[i++];
 142                 if (!(format & DT_NOCLIP) || !(format & DT_NOPREFIX) ||
 143                     (format & DT_WORDBREAK))
 144                 {
 145                     if (!GetTextExtentPointW(hdc, &dest[j-1], 1, &size))
 146                         return NULL;
 147                     plen += size.cx;
 148                 }
 149             }
 150             break;
 151
 152         case SPACE:
 153             dest[j++] = str[i++];
 154             if (!(format & DT_NOCLIP) || !(format & DT_NOPREFIX) ||
 155                 (format & DT_WORDBREAK))
 156             {
 157                 wb_i = i;
 158                 wb_j = j - 1;
 159                 wb_count = *count;
 160                 if (!GetTextExtentPointW(hdc, &dest[j-1], 1, &size))
 161                     return NULL;
 162                 plen += size.cx;
 163             }
 164             break;
 165
 166         default:
 167             dest[j++] = str[i++];
 168             if (!(format & DT_NOCLIP) || !(format & DT_NOPREFIX) ||
 169                 (format & DT_WORDBREAK))
 170             {
 171                 if (!GetTextExtentPointW(hdc, &dest[j-1], 1, &size))
 172                     return NULL;
 173                 plen += size.cx;
 174             }
 175         }
 176
 177         (*count)--;
 178         if (!(format & DT_NOCLIP) || (format & DT_WORDBREAK))
 179         {
 180             if (plen > width)
 181             {
 182                 if (format & DT_WORDBREAK)
 183                 {
 184                     if (wb_j)
 185                     {
 186                         *len = wb_j;
 187                         *count = wb_count - 1;
 188                         return (&str[wb_i]);
 189                     }
 190                 }
 191                 else
 192                 {
 193                     *len = j;
 194                     return (&str[i]);
 195                 }
 196             }
 197         }
 198     }
 199
 200     *len = j;
 201     return NULL;
 202 }
 203
 204
 205 /***********************************************************************
 206  *           DrawText16    (USER.85)
 207  */
 208 INT16 WINAPI DrawText16( HDC16 hdc, LPCSTR str, INT16 count, LPRECT16 rect, UINT16 flags )
 209 {
 210     INT16 ret;
 211
 212     if (rect)
 213     {
 214         RECT rect32;
 215         CONV_RECT16TO32( rect, &rect32 );
 216         ret = DrawTextA( hdc, str, count, &rect32, flags );
 217         CONV_RECT32TO16( &rect32, rect );
 218     }
 219     else ret = DrawTextA( hdc, str, count, NULL, flags);
 220     return ret;
 221 }
 222
 223
 224 /***********************************************************************
 225  *           DrawTextExW    (USER32.@)
 226  */
 227 #define MAX_STATIC_BUFFER 1024
 228 INT WINAPI DrawTextExW( HDC hdc, LPCWSTR str, INT i_count,
 229                      LPRECT rect, UINT flags, LPDRAWTEXTPARAMS dtp )
 230 {
 231     SIZE size;
 232     const WCHAR *strPtr;
 233     static WCHAR line[MAX_STATIC_BUFFER];
 234     int len, lh, count=i_count;
 235     int prefix_x = 0;
 236     int prefix_end = 0;
 237     TEXTMETRICW tm;
 238     int x = rect->left, y = rect->top;
 239     int width = rect->right - rect->left;
 240     int max_width = 0;
 241
 242     TRACE("%s, %d , [(%d,%d),(%d,%d)]\n", debugstr_wn (str, count), count,
 243           rect->left, rect->top, rect->right, rect->bottom);
 244
 245     if(dtp) {
 246         FIXME("Ignores params:%d,%d,%d,%d\n", dtp->cbSize,
 247               dtp->iTabLength, dtp->iLeftMargin, dtp->iRightMargin);
 248     }
 249
 250     if (!str) return 0;
 251     if (count == -1) count = strlenW(str);
 252     if (count == 0) return 0;
 253     strPtr = str;
 254
 255     GetTextMetricsW(hdc, &tm);
 256     if (flags & DT_EXTERNALLEADING)
 257         lh = tm.tmHeight + tm.tmExternalLeading;
 258     else
 259         lh = tm.tmHeight;
 260
 261     if (flags & DT_TABSTOP)
 262         tabstop = flags >> 8;
 263
 264     if (flags & DT_EXPANDTABS)
 265     {
 266         GetTextExtentPointW(hdc, SPACEW, 1, &size);
 267         spacewidth = size.cx;
 268         GetTextExtentPointW(hdc, oW, 1, &size);
 269         tabwidth = size.cx * tabstop;
 270     }
 271
 272     if (flags & DT_CALCRECT) flags |= DT_NOCLIP;
 273
 274     do
 275     {
 276         prefix_offset = -1;
 277         len = MAX_STATIC_BUFFER;
 278         strPtr = TEXT_NextLineW(hdc, strPtr, &count, line, &len, width, flags);
 279
 280         if (prefix_offset != -1)
 281         {
 282             GetTextExtentPointW(hdc, line, prefix_offset, &size);
 283             prefix_x = size.cx;
 284             GetTextExtentPointW(hdc, line, prefix_offset + 1, &size);
 285             prefix_end = size.cx - 1;
 286         }
 287
 288         if (!GetTextExtentPointW(hdc, line, len, &size)) return 0;
 289         if (flags & DT_CENTER) x = (rect->left + rect->right -
 290                                     size.cx) / 2;
 291         else if (flags & DT_RIGHT) x = rect->right - size.cx;
 292
 293         if (flags & DT_SINGLELINE)
 294         {
 295             if (flags & DT_VCENTER) y = rect->top +
 296                 (rect->bottom - rect->top) / 2 - size.cy / 2;
 297             else if (flags & DT_BOTTOM) y = rect->bottom - size.cy;
 298
 299             if (flags & (DT_PATH_ELLIPSIS | DT_END_ELLIPSIS | DT_WORD_ELLIPSIS))
 300             {
 301                 WCHAR swapStr[sizeof(line)];
 302                 WCHAR* fnameDelim = NULL;
 303                 int totalLen = i_count >= 0 ? i_count : strlenW(str);
 304
 305                 if (size.cx > width)
 306                 {
 307                     int fnameLen = totalLen;
 308
 309                     /* allow room for '...' */
 310                     count = min(totalLen+3, sizeof(line)-3);
 311
 312                     if (flags & DT_WORD_ELLIPSIS)
 313                         flags |= DT_WORDBREAK;
 314
 315                     if (flags & DT_PATH_ELLIPSIS)
 316                     {
 317                         WCHAR* lastBkSlash = NULL;
 318                         WCHAR* lastFwdSlash = NULL;
 319                         strncpyW(line, str, totalLen);
 320                         line[totalLen] = '\0';
 321                         lastBkSlash = strrchrW(line, BACK_SLASHW[0]);
 322                         lastFwdSlash = strrchrW(line, FORWARD_SLASHW[0]);
 323                         fnameDelim = lastFwdSlash ? lastFwdSlash : lastBkSlash;
 324                         if (lastBkSlash && lastFwdSlash) /* which is last? */
 325                            if (lastBkSlash > lastFwdSlash)
 326                                 fnameDelim = lastBkSlash;
 327
 328                         if (fnameDelim)
 329                             fnameLen = &line[totalLen] - fnameDelim;
 330                         else
 331                             fnameDelim = (WCHAR*)str;
 332
 333                         strcpyW(swapStr, ELLIPSISW);
 334                         strncpyW(swapStr+strlenW(swapStr), fnameDelim, fnameLen);
 335                         swapStr[fnameLen+3] = '\0';
 336                         strncpyW(swapStr+strlenW(swapStr), str, totalLen - fnameLen);
 337                         swapStr[totalLen+3] = '\0';
 338                     }
 339                     else  /* DT_END_ELLIPSIS | DT_WORD_ELLIPSIS */
 340                     {
 341                         strcpyW(swapStr, ELLIPSISW);
 342                         strncpyW(swapStr+strlenW(swapStr), str, totalLen);
 343                     }
 344
 345                     len = MAX_STATIC_BUFFER;
 346                     TEXT_NextLineW(hdc, swapStr, &count, line, &len, width, flags);
 347
 348                     /* if only the ELLIPSIS will fit, just let it be clipped */
 349                     len = max(3, len);
 350                     GetTextExtentPointW(hdc, line, len, &size);
 351
 352                     /* FIXME:
 353                      * NextLine uses GetTextExtentPoint for each character,
 354                      * rather than GetCharABCWidth...  So the whitespace between
 355                      * characters is ignored in the width measurement, and the
 356                      * reported len is too great.  To compensate, we must get
 357                      * the width of the entire line and adjust len accordingly.
 358                     */
 359                     while ((size.cx > width) && (len > 3))
 360                     {
 361                         line[--len] = '\0';
 362                         GetTextExtentPointW(hdc, line, len, &size);
 363                     }
 364
 365                     if (fnameLen < len-3) /* some of the path will fit */
 366                     {
 367                         /* put the ELLIPSIS between the path and filename */
 368                         strncpyW(swapStr, &line[fnameLen+3], len-3-fnameLen);
 369                         swapStr[len-3-fnameLen] = '\0';
 370                         strcatW(swapStr, ELLIPSISW);
 371                         strncpyW(swapStr+strlenW(swapStr), &line[3], fnameLen);
 372                     }
 373                     else
 374                     {
 375                         /* move the ELLIPSIS to the end */
 376                         strncpyW(swapStr, &line[3], len-3);
 377                         swapStr[len-3] = '\0';
 378                         strcpyW(swapStr+strlenW(swapStr), ELLIPSISW);
 379                     }
 380
 381                     strncpyW(line, swapStr, len);
 382                     line[len] = '\0';
 383                     strPtr = NULL;
 384                 }
 385             }
 386         }
 387         if (!(flags & DT_CALCRECT))
 388         {
 389             if (!ExtTextOutW(hdc, x, y, (flags & DT_NOCLIP) ? 0 : ETO_CLIPPED,
 390                              rect, line, len, NULL )) return 0;
 391             if (prefix_offset != -1)
 392             {
 393                 HPEN hpen = CreatePen( PS_SOLID, 1, GetTextColor(hdc) );
 394                 HPEN oldPen = SelectObject( hdc, hpen );
 395                 MoveToEx(hdc, x + prefix_x, y + tm.tmAscent + 1, NULL );
 396                 LineTo(hdc, x + prefix_end + 1, y + tm.tmAscent + 1 );
 397                 SelectObject( hdc, oldPen );
 398                 DeleteObject( hpen );
 399             }
 400         }
 401         else if (size.cx > max_width)
 402             max_width = size.cx;
 403
 404         y += lh;
 405         if (strPtr)
 406         {
 407             if (!(flags & DT_NOCLIP))
 408             {
 409                 if (y > rect->bottom - lh)
 410                     break;
 411             }
 412         }
 413     }
 414     while (strPtr);
 415     if (flags & DT_CALCRECT)
 416     {
 417         rect->right = rect->left + max_width;
 418         rect->bottom = y;
 419     }
 420     return y - rect->top;
 421 }
 422
 423 /***********************************************************************
 424  *           DrawTextA    (USER32.@)
 425  */
 426 INT WINAPI DrawTextA( HDC hdc, LPCSTR str, INT count, LPRECT rect, UINT flags )
 427 {
 428    WCHAR *wstr;
 429    INT ret = 0;
 430    DWORD wcount;
 431
 432    if (count == -1) count = strlen(str);
 433    if (!count) return 0;
 434    wcount = MultiByteToWideChar( CP_ACP, 0, str, count, NULL, 0 );
 435    wstr = HeapAlloc(GetProcessHeap(), 0, wcount * sizeof(WCHAR));
 436    if (wstr)
 437    {
 438        MultiByteToWideChar( CP_ACP, 0, str, count, wstr, wcount );
 439        ret = DrawTextExW( hdc, wstr, wcount, rect, flags, NULL );
 440        HeapFree(GetProcessHeap(), 0, wstr);
 441    }
 442    return ret;
 443 }
 444
 445 /***********************************************************************
 446  *           DrawTextW    (USER32.@)
 447  */
 448 INT WINAPI DrawTextW( HDC hdc, LPCWSTR str, INT count,
 449                           LPRECT rect, UINT flags )
 450 {
 451     return DrawTextExW(hdc, str, count, rect, flags, NULL);
 452 }
 453
 454 /***********************************************************************
 455  *           DrawTextExA    (USER32.@)
 456  */
 457 INT WINAPI DrawTextExA( HDC hdc, LPCSTR str, INT count,
 458                      LPRECT rect, UINT flags, LPDRAWTEXTPARAMS dtp )
 459 {
 460     TRACE("(%d,'%s',%d,%p,0x%08x,%p)\n",hdc,str,count,rect,flags,dtp);
 461     if(dtp) {
 462         FIXME("Ignores params:%d,%d,%d,%d\n",dtp->cbSize,
 463                    dtp->iTabLength,dtp->iLeftMargin,dtp->iRightMargin);
 464     }
 465     return DrawTextA(hdc,str,count,rect,flags);
 466 }
 467
 468 /***********************************************************************
 469  *           TEXT_GrayString
 470  *
 471  * FIXME: The call to 16-bit code only works because the wine GDI is a 16-bit
 472  * heap and we can guarantee that the handles fit in an INT16. We have to
 473  * rethink the strategy once the migration to NT handles is complete.
 474  * We are going to get a lot of code-duplication once this migration is
 475  * completed...
 476  *
 477  */
 478 static BOOL TEXT_GrayString(HDC hdc, HBRUSH hb, GRAYSTRINGPROC fn, LPARAM lp, INT len,
 479                             INT x, INT y, INT cx, INT cy, BOOL unicode, BOOL _32bit)
 480 {
 481     HBITMAP hbm, hbmsave;
 482     HBRUSH hbsave;
 483     HFONT hfsave;
 484     HDC memdc = CreateCompatibleDC(hdc);
 485     int slen = len;
 486     BOOL retval = TRUE;
 487     COLORREF fg, bg;
 488
 489     if(!hdc) return FALSE;
 490
 491     if(len == 0)
 492     {
 493         if(unicode)
 494             slen = lstrlenW((LPCWSTR)lp);
 495         else if(_32bit)
 496             slen = strlen((LPCSTR)lp);
 497         else
 498             slen = strlen(MapSL(lp));
 499     }
 500
 501     if((cx == 0 || cy == 0) && slen != -1)
 502     {
 503         SIZE s;
 504         if(unicode)
 505             GetTextExtentPoint32W(hdc, (LPCWSTR)lp, slen, &s);
 506         else if(_32bit)
 507             GetTextExtentPoint32A(hdc, (LPCSTR)lp, slen, &s);
 508         else
 509             GetTextExtentPoint32A(hdc, MapSL(lp), slen, &s);
 510         if(cx == 0) cx = s.cx;
 511         if(cy == 0) cy = s.cy;
 512     }
 513
 514     hbm = CreateBitmap(cx, cy, 1, 1, NULL);
 515     hbmsave = (HBITMAP)SelectObject(memdc, hbm);
 516     hbsave = SelectObject( memdc, GetStockObject(BLACK_BRUSH) );
 517     PatBlt( memdc, 0, 0, cx, cy, PATCOPY );
 518     SelectObject( memdc, hbsave );
 519     SetTextColor(memdc, RGB(255, 255, 255));
 520     SetBkColor(memdc, RGB(0, 0, 0));
 521     hfsave = (HFONT)SelectObject(memdc, GetCurrentObject(hdc, OBJ_FONT));
 522
 523     if(fn)
 524     {
 525         if(_32bit)
 526             retval = fn(memdc, lp, slen);
 527         else
 528             retval = (BOOL)((BOOL16)((GRAYSTRINGPROC16)fn)((HDC16)memdc, lp, (INT16)slen));
 529     }
 530     else
 531     {
 532         if(unicode)
 533             TextOutW(memdc, 0, 0, (LPCWSTR)lp, slen);
 534         else if(_32bit)
 535             TextOutA(memdc, 0, 0, (LPCSTR)lp, slen);
 536         else
 537             TextOutA(memdc, 0, 0, MapSL(lp), slen);
 538     }
 539
 540     SelectObject(memdc, hfsave);
 541
 542 /*
 543  * Windows doc says that the bitmap isn't grayed when len == -1 and
 544  * the callback function returns FALSE. However, testing this on
 545  * win95 showed otherwise...
 546 */
 547 #ifdef GRAYSTRING_USING_DOCUMENTED_BEHAVIOUR
 548     if(retval || len != -1)
 549 #endif
 550     {
 551         hbsave = (HBRUSH)SelectObject(memdc, CACHE_GetPattern55AABrush());
 552         PatBlt(memdc, 0, 0, cx, cy, 0x000A0329);
 553         SelectObject(memdc, hbsave);
 554     }
 555
 556     if(hb) hbsave = (HBRUSH)SelectObject(hdc, hb);
 557     fg = SetTextColor(hdc, RGB(0, 0, 0));
 558     bg = SetBkColor(hdc, RGB(255, 255, 255));
 559     BitBlt(hdc, x, y, cx, cy, memdc, 0, 0, 0x00E20746);
 560     SetTextColor(hdc, fg);
 561     SetBkColor(hdc, bg);
 562     if(hb) SelectObject(hdc, hbsave);
 563
 564     SelectObject(memdc, hbmsave);
 565     DeleteObject(hbm);
 566     DeleteDC(memdc);
 567     return retval;
 568 }
 569
 570
 571 /***********************************************************************
 572  *           GrayString16   (USER.185)
 573  */
 574 BOOL16 WINAPI GrayString16( HDC16 hdc, HBRUSH16 hbr, GRAYSTRINGPROC16 gsprc,
 575                             LPARAM lParam, INT16 cch, INT16 x, INT16 y,
 576                             INT16 cx, INT16 cy )
 577 {
 578     return TEXT_GrayString(hdc, hbr, (GRAYSTRINGPROC)gsprc, lParam, cch,
 579                            x, y, cx, cy, FALSE, FALSE);
 580 }
 581
 582
 583 /***********************************************************************
 584  *           GrayStringA   (USER32.@)
 585  */
 586 BOOL WINAPI GrayStringA( HDC hdc, HBRUSH hbr, GRAYSTRINGPROC gsprc,
 587                          LPARAM lParam, INT cch, INT x, INT y,
 588                          INT cx, INT cy )
 589 {
 590     return TEXT_GrayString(hdc, hbr, gsprc, lParam, cch, x, y, cx, cy,
 591                            FALSE, TRUE);
 592 }
 593
 594
 595 /***********************************************************************
 596  *           GrayStringW   (USER32.@)
 597  */
 598 BOOL WINAPI GrayStringW( HDC hdc, HBRUSH hbr, GRAYSTRINGPROC gsprc,
 599                          LPARAM lParam, INT cch, INT x, INT y,
 600                          INT cx, INT cy )
 601 {
 602     return TEXT_GrayString(hdc, hbr, gsprc, lParam, cch, x, y, cx, cy,
 603                            TRUE, TRUE);
 604 }
 605
 606 /***********************************************************************
 607  *           TEXT_TabbedTextOut
 608  *
 609  * Helper function for TabbedTextOut() and GetTabbedTextExtent().
 610  * Note: this doesn't work too well for text-alignment modes other
 611  *       than TA_LEFT|TA_TOP. But we want bug-for-bug compatibility :-)
 612  */
 613 static LONG TEXT_TabbedTextOut( HDC hdc, INT x, INT y, LPCSTR lpstr,
 614                                 INT count, INT cTabStops, const INT16 *lpTabPos16,
 615                                 const INT *lpTabPos32, INT nTabOrg,
 616                                 BOOL fDisplayText )
 617 {
 618     INT defWidth;
 619     SIZE extent;
 620     int i, tabPos = x;
 621     int start = x;
 622
 623     extent.cx = 0;
 624     extent.cy = 0;
 625
 626     if (cTabStops == 1)
 627     {
 628         defWidth = lpTabPos32 ? *lpTabPos32 : *lpTabPos16;
 629         cTabStops = 0;
 630     }
 631     else
 632     {
 633         TEXTMETRICA tm;
 634         GetTextMetricsA( hdc, &tm );
 635         defWidth = 8 * tm.tmAveCharWidth;
 636     }
 637
 638     while (count > 0)
 639     {
 640         for (i = 0; i < count; i++)
 641             if (lpstr[i] == '\t') break;
 642         GetTextExtentPointA( hdc, lpstr, i, &extent );
 643         if (lpTabPos32)
 644         {
 645             while ((cTabStops > 0) &&
 646                    (nTabOrg + *lpTabPos32 <= x + extent.cx))
 647             {
 648                 lpTabPos32++;
 649                 cTabStops--;
 650             }
 651         }
 652         else
 653         {
 654             while ((cTabStops > 0) &&
 655                    (nTabOrg + *lpTabPos16 <= x + extent.cx))
 656             {
 657                 lpTabPos16++;
 658                 cTabStops--;
 659             }
 660         }
 661         if (i == count)
 662             tabPos = x + extent.cx;
 663         else if (cTabStops > 0)
 664             tabPos = nTabOrg + (lpTabPos32 ? *lpTabPos32 : *lpTabPos16);
 665         else
 666             tabPos = nTabOrg + ((x + extent.cx - nTabOrg) / defWidth + 1) * defWidth;
 667         if (fDisplayText)
 668         {
 669             RECT r;
 670             r.left   = x;
 671             r.top    = y;
 672             r.right  = tabPos;
 673             r.bottom = y + extent.cy;
 674             ExtTextOutA( hdc, x, y,
 675                            GetBkMode(hdc) == OPAQUE ? ETO_OPAQUE : 0,
 676                            &r, lpstr, i, NULL );
 677         }
 678         x = tabPos;
 679         count -= i+1;
 680         lpstr += i+1;
 681     }
 682     return MAKELONG(tabPos - start, extent.cy);
 683 }
 684
 685
 686 /***********************************************************************
 687  *           TabbedTextOut16    (USER.196)
 688  */
 689 LONG WINAPI TabbedTextOut16( HDC16 hdc, INT16 x, INT16 y, LPCSTR lpstr,
 690                              INT16 count, INT16 cTabStops,
 691                              const INT16 *lpTabPos, INT16 nTabOrg )
 692 {
 693     TRACE("%04x %d,%d '%.*s' %d\n", hdc, x, y, count, lpstr, count );
 694     return TEXT_TabbedTextOut( hdc, x, y, lpstr, count, cTabStops,
 695                                lpTabPos, NULL, nTabOrg, TRUE );
 696 }
 697
 698
 699 /***********************************************************************
 700  *           TabbedTextOutA    (USER32.@)
 701  */
 702 LONG WINAPI TabbedTextOutA( HDC hdc, INT x, INT y, LPCSTR lpstr, INT count,
 703                             INT cTabStops, const INT *lpTabPos, INT nTabOrg )
 704 {
 705     TRACE("%04x %d,%d '%.*s' %d\n", hdc, x, y, count, lpstr, count );
 706     return TEXT_TabbedTextOut( hdc, x, y, lpstr, count, cTabStops,
 707                                NULL, lpTabPos, nTabOrg, TRUE );
 708 }
 709
 710
 711 /***********************************************************************
 712  *           TabbedTextOutW    (USER32.@)
 713  */
 714 LONG WINAPI TabbedTextOutW( HDC hdc, INT x, INT y, LPCWSTR str, INT count,
 715                             INT cTabStops, const INT *lpTabPos, INT nTabOrg )
 716 {
 717     LONG ret;
 718     LPSTR p;
 719     INT acount;
 720     UINT codepage = CP_ACP; /* FIXME: get codepage of font charset */
 721
 722     acount = WideCharToMultiByte(codepage,0,str,count,NULL,0,NULL,NULL);
 723     p = HeapAlloc( GetProcessHeap(), 0, acount );
 724     if(p == NULL) return 0; /* FIXME: is this the correct return on failure */
 725     acount = WideCharToMultiByte(codepage,0,str,count,p,acount,NULL,NULL);
 726     ret = TabbedTextOutA( hdc, x, y, p, acount, cTabStops, lpTabPos, nTabOrg );
 727     HeapFree( GetProcessHeap(), 0, p );
 728     return ret;
 729 }
 730
 731
 732 /***********************************************************************
 733  *           GetTabbedTextExtent16    (USER.197)
 734  */
 735 DWORD WINAPI GetTabbedTextExtent16( HDC16 hdc, LPCSTR lpstr, INT16 count,
 736                                     INT16 cTabStops, const INT16 *lpTabPos )
 737 {
 738     TRACE("%04x '%.*s' %d\n", hdc, count, lpstr, count );
 739     return TEXT_TabbedTextOut( hdc, 0, 0, lpstr, count, cTabStops,
 740                                lpTabPos, NULL, 0, FALSE );
 741 }
 742
 743
 744 /***********************************************************************
 745  *           GetTabbedTextExtentA    (USER32.@)
 746  */
 747 DWORD WINAPI GetTabbedTextExtentA( HDC hdc, LPCSTR lpstr, INT count,
 748                                    INT cTabStops, const INT *lpTabPos )
 749 {
 750     TRACE("%04x '%.*s' %d\n", hdc, count, lpstr, count );
 751     return TEXT_TabbedTextOut( hdc, 0, 0, lpstr, count, cTabStops,
 752                                NULL, lpTabPos, 0, FALSE );
 753 }
 754
 755
 756 /***********************************************************************
 757  *           GetTabbedTextExtentW    (USER32.@)
 758  */
 759 DWORD WINAPI GetTabbedTextExtentW( HDC hdc, LPCWSTR lpstr, INT count,
 760                                    INT cTabStops, const INT *lpTabPos )
 761 {
 762     LONG ret;
 763     LPSTR p;
 764     INT acount;
 765     UINT codepage = CP_ACP; /* FIXME: get codepage of font charset */
 766
 767     acount = WideCharToMultiByte(codepage,0,lpstr,count,NULL,0,NULL,NULL);
 768     p = HeapAlloc( GetProcessHeap(), 0, acount );
 769     if(p == NULL) return 0; /* FIXME: is this the correct failure value? */
 770     acount = WideCharToMultiByte(codepage,0,lpstr,count,p,acount,NULL,NULL);
 771     ret = GetTabbedTextExtentA( hdc, p, acount, cTabStops, lpTabPos );
 772     HeapFree( GetProcessHeap(), 0, p );
 773     return ret;
 774 }