objects/text.c

   1 /*
   2  * text functions
   3  *
   4  * Copyright 1993, 1994 Alexandre Julliard
   5  *
   6  */
   7
   8 #include <stdlib.h>
   9 #include <X11/Xatom.h>
  10 #include "windows.h"
  11 #include "dc.h"
  12 #include "gdi.h"
  13 #include "callback.h"
  14 #include "metafile.h"
  15 #include "string32.h"
  16 #include "stddebug.h"
  17 /* #define DEBUG_TEXT */
  18 #include "debug.h"
  19 #include "xmalloc.h"
  20
  21 #define TAB     9
  22 #define LF     10
  23 #define CR     13
  24 #define SPACE  32
  25 #define PREFIX 38
  26
  27 #define SWAP_INT(a,b)  { int t = a; a = b; b = t; }
  28
  29 static int tabstop = 8;
  30 static int tabwidth;
  31 static int spacewidth;
  32 static int prefix_offset;
  33
  34 extern int CLIPPING_IntersectClipRect( DC * dc, short left, short top,
  35                                          short right, short bottom, UINT16 flags);
  36
  37 static const char *TEXT_NextLine( HDC hdc, const char *str, int *count,
  38                                   char *dest, int *len, int width, WORD format)
  39 {
  40     /* Return next line of text from a string.
  41      *
  42      * hdc - handle to DC.
  43      * str - string to parse into lines.
  44      * count - length of str.
  45      * dest - destination in which to return line.
  46      * len - length of resultant line in dest in chars.
  47      * width - maximum width of line in pixels.
  48      * format - format type passed to DrawText.
  49      *
  50      * Returns pointer to next char in str after end of the line
  51      * or NULL if end of str reached.
  52      */
  53
  54     int i = 0, j = 0, k;
  55     int plen = 0;
  56     int numspaces;
  57     SIZE16 size;
  58     int lasttab = 0;
  59     int wb_i = 0, wb_j = 0, wb_count = 0;
  60
  61     while (*count)
  62     {
  63         switch (str[i])
  64         {
  65         case CR:
  66         case LF:
  67             if (!(format & DT_SINGLELINE))
  68             {
  69                 if (str[i] == CR && str[i+1] == LF)
  70                     i++;
  71                 i++;
  72                 *len = j;
  73                 (*count)--;
  74                 return (&str[i]);
  75             }
  76             dest[j++] = str[i++];
  77             if (!(format & DT_NOCLIP) || !(format & DT_NOPREFIX) ||
  78                 (format & DT_WORDBREAK))
  79             {
  80                 if (!GetTextExtentPoint16(hdc, &dest[j-1], 1, &size))
  81                     return NULL;
  82                 plen += size.cx;
  83             }
  84             break;
  85
  86         case PREFIX:
  87             if (!(format & DT_NOPREFIX))
  88             {
  89                 prefix_offset = j;
  90                 i++;
  91             }
  92             else
  93             {
  94                 dest[j++] = str[i++];
  95                 if (!(format & DT_NOCLIP) || (format & DT_WORDBREAK))
  96                 {
  97                     if (!GetTextExtentPoint16(hdc, &dest[j-1], 1, &size))
  98                         return NULL;
  99                     plen += size.cx;
 100                 }
 101             }
 102             break;
 103
 104         case TAB:
 105             if (format & DT_EXPANDTABS)
 106             {
 107                 wb_i = ++i;
 108                 wb_j = j;
 109                 wb_count = *count;
 110
 111                 if (!GetTextExtentPoint16(hdc, &dest[lasttab], j - lasttab,
 112                                                                  &size))
 113                     return NULL;
 114
 115                 numspaces = (tabwidth - size.cx) / spacewidth;
 116                 for (k = 0; k < numspaces; k++)
 117                     dest[j++] = SPACE;
 118                 plen += tabwidth - size.cx;
 119                 lasttab = wb_j + numspaces;
 120             }
 121             else
 122             {
 123                 dest[j++] = str[i++];
 124                 if (!(format & DT_NOCLIP) || !(format & DT_NOPREFIX) ||
 125                     (format & DT_WORDBREAK))
 126                 {
 127                     if (!GetTextExtentPoint16(hdc, &dest[j-1], 1, &size))
 128                         return NULL;
 129                     plen += size.cx;
 130                 }
 131             }
 132             break;
 133
 134         case SPACE:
 135             dest[j++] = str[i++];
 136             if (!(format & DT_NOCLIP) || !(format & DT_NOPREFIX) ||
 137                 (format & DT_WORDBREAK))
 138             {
 139                 wb_i = i;
 140                 wb_j = j - 1;
 141                 wb_count = *count;
 142                 if (!GetTextExtentPoint16(hdc, &dest[j-1], 1, &size))
 143                     return NULL;
 144                 plen += size.cx;
 145             }
 146             break;
 147
 148         default:
 149             dest[j++] = str[i++];
 150             if (!(format & DT_NOCLIP) || !(format & DT_NOPREFIX) ||
 151                 (format & DT_WORDBREAK))
 152             {
 153                 if (!GetTextExtentPoint16(hdc, &dest[j-1], 1, &size))
 154                     return NULL;
 155                 plen += size.cx;
 156             }
 157         }
 158
 159         (*count)--;
 160         if (!(format & DT_NOCLIP) || (format & DT_WORDBREAK))
 161         {
 162             if (plen > width)
 163             {
 164                 if (format & DT_WORDBREAK)
 165                 {
 166                     if (wb_j)
 167                     {
 168                         *len = wb_j;
 169                         *count = wb_count - 1;
 170                         return (&str[wb_i]);
 171                     }
 172                 }
 173                 else
 174                 {
 175                     *len = j;
 176                     return (&str[i]);
 177                 }
 178             }
 179         }
 180     }
 181
 182     *len = j;
 183     return NULL;
 184 }
 185
 186
 187 /***********************************************************************
 188  *           DrawText16    (USER.85)
 189  */
 190 INT16 DrawText16( HDC16 hdc, LPCSTR str, INT16 i_count,
 191                   LPRECT16 rect, UINT16 flags )
 192 {
 193     SIZE16 size;
 194     const char *strPtr;
 195     static char line[1024];
 196     int len, lh, count=i_count;
 197     int prefix_x = 0;
 198     int prefix_end = 0;
 199     TEXTMETRIC16 tm;
 200     int x = rect->left, y = rect->top;
 201     int width = rect->right - rect->left;
 202     int max_width = 0;
 203
 204     dprintf_text(stddeb,"DrawText: '%s', %d , [(%d,%d),(%d,%d)]\n", str,
 205                  count, rect->left, rect->top, rect->right, rect->bottom);
 206
 207     if (count == -1) count = strlen(str);
 208     strPtr = str;
 209
 210     GetTextMetrics16(hdc, &tm);
 211     if (flags & DT_EXTERNALLEADING)
 212         lh = tm.tmHeight + tm.tmExternalLeading;
 213     else
 214         lh = tm.tmHeight;
 215
 216     if (flags & DT_TABSTOP)
 217         tabstop = flags >> 8;
 218
 219     if (flags & DT_EXPANDTABS)
 220     {
 221         GetTextExtentPoint16(hdc, " ", 1, &size);
 222         spacewidth = size.cx;
 223         GetTextExtentPoint16(hdc, "o", 1, &size);
 224         tabwidth = size.cx * tabstop;
 225     }
 226
 227     do
 228     {
 229         prefix_offset = -1;
 230         strPtr = TEXT_NextLine(hdc, strPtr, &count, line, &len, width, flags);
 231
 232         if (prefix_offset != -1)
 233         {
 234             GetTextExtentPoint16(hdc, line, prefix_offset, &size);
 235             prefix_x = size.cx;
 236             GetTextExtentPoint16(hdc, line, prefix_offset + 1, &size);
 237             prefix_end = size.cx - 1;
 238         }
 239
 240         if (!GetTextExtentPoint16(hdc, line, len, &size)) return 0;
 241         if (flags & DT_CENTER) x = (rect->left + rect->right -
 242                                     size.cx) / 2;
 243         else if (flags & DT_RIGHT) x = rect->right - size.cx;
 244
 245         if (flags & DT_SINGLELINE)
 246         {
 247             if (flags & DT_VCENTER) y = rect->top +
 248                 (rect->bottom - rect->top) / 2 - size.cy / 2;
 249             else if (flags & DT_BOTTOM) y = rect->bottom - size.cy;
 250         }
 251         if (!(flags & DT_CALCRECT))
 252         {
 253             if (!ExtTextOut16(hdc, x, y, (flags & DT_NOCLIP) ? 0 : ETO_CLIPPED,
 254                               rect, line, len, NULL )) return 0;
 255             if (prefix_offset != -1)
 256             {
 257                 HPEN16 hpen = CreatePen( PS_SOLID, 1, GetTextColor(hdc) );
 258                 HPEN16 oldPen = SelectObject( hdc, hpen );
 259                 MoveTo(hdc, x + prefix_x, y + tm.tmAscent + 1 );
 260                 LineTo(hdc, x + prefix_end, y + tm.tmAscent + 1 );
 261                 SelectObject( hdc, oldPen );
 262                 DeleteObject( hpen );
 263             }
 264         }
 265         else if (size.cx > max_width)
 266             max_width = size.cx;
 267
 268         y += lh;
 269         if (strPtr)
 270         {
 271             if (!(flags & DT_NOCLIP) && !(flags & DT_CALCRECT))
 272             {
 273                 if (y > rect->bottom - lh)
 274                     break;
 275             }
 276         }
 277     }
 278     while (strPtr);
 279     if (flags & DT_CALCRECT)
 280     {
 281         rect->right = rect->left + max_width;
 282         rect->bottom = y;
 283     }
 284     return 1;
 285 }
 286
 287
 288 /***********************************************************************
 289  *           DrawText32A    (USER32.163)
 290  */
 291 INT32 DrawText32A( HDC32 hdc, LPCSTR str, INT32 count,
 292                    LPRECT32 rect, UINT32 flags )
 293 {
 294     RECT16 rect16;
 295     INT16 ret;
 296
 297     if (!rect)
 298         return DrawText16( (HDC16)hdc, str, (INT16)count, NULL, (UINT16)flags);
 299     CONV_RECT32TO16( rect, &rect16 );
 300     ret = DrawText16( (HDC16)hdc, str, (INT16)count, &rect16, (UINT16)flags );
 301     CONV_RECT16TO32( &rect16, rect );
 302     return ret;
 303 }
 304
 305
 306 /***********************************************************************
 307  *           DrawText32W    (USER32.166)
 308  */
 309 INT32 DrawText32W( HDC32 hdc, LPCWSTR str, INT32 count,
 310                    LPRECT32 rect, UINT32 flags )
 311 {
 312     char *p = STRING32_DupUniToAnsi( str );
 313     INT32 ret = DrawText32A( hdc, p, count, rect, flags );
 314     free(p);
 315     return ret;
 316 }
 317
 318
 319 /***********************************************************************
 320  *           ExtTextOut16    (GDI.351)
 321  */
 322 BOOL16 ExtTextOut16( HDC16 hdc, INT16 x, INT16 y, UINT16 flags,
 323                      const RECT16 *lprect, LPCSTR str, UINT16 count,
 324                      const INT16 *lpDx )
 325 {
 326     HRGN        hRgnClip = 0;
 327     int         dir, ascent, descent, i;
 328     XCharStruct info;
 329     XFontStruct *font;
 330     RECT16      rect;
 331
 332     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 333     if (!dc)
 334     {
 335         dc = (DC *)GDI_GetObjPtr( hdc, METAFILE_DC_MAGIC );
 336         if (!dc) return FALSE;
 337         MF_ExtTextOut( dc, x, y, flags, lprect, str, count, lpDx );
 338         return TRUE;
 339     }
 340
 341     if (!DC_SetupGCForText( dc )) return TRUE;
 342     font = dc->u.x.font.fstruct;
 343
 344     dprintf_text(stddeb,"ExtTextOut: hdc=%04x %d,%d '%*.*s', %d  flags=%d\n",
 345             hdc, x, y, count, count, str, count, flags);
 346     if (lprect != NULL) dprintf_text(stddeb, "\trect=(%d,%d- %d,%d)\n",
 347                                      lprect->left, lprect->top,
 348                                      lprect->right, lprect->bottom );
 349
 350       /* Setup coordinates */
 351
 352     if (dc->w.textAlign & TA_UPDATECP)
 353     {
 354         x = dc->w.CursPosX;
 355         y = dc->w.CursPosY;
 356     }
 357
 358     if (flags & (ETO_OPAQUE | ETO_CLIPPED))  /* there's a rectangle */
 359     {
 360         if (!lprect)  /* not always */
 361         {
 362             SIZE16 sz;
 363             if (flags & ETO_CLIPPED)  /* Can't clip with no rectangle */
 364               return FALSE;
 365             if (!GetTextExtentPoint16( hdc, str, count, &sz ))
 366               return FALSE;
 367             rect.left   = XLPTODP( dc, x );
 368             rect.right  = XLPTODP( dc, x+sz.cx );
 369             rect.top    = YLPTODP( dc, y );
 370             rect.bottom = YLPTODP( dc, y+sz.cy );
 371         }
 372         else
 373         {
 374             rect.left   = XLPTODP( dc, lprect->left );
 375             rect.right  = XLPTODP( dc, lprect->right );
 376             rect.top    = YLPTODP( dc, lprect->top );
 377             rect.bottom = YLPTODP( dc, lprect->bottom );
 378         }
 379         if (rect.right < rect.left) SWAP_INT( rect.left, rect.right );
 380         if (rect.bottom < rect.top) SWAP_INT( rect.top, rect.bottom );
 381     }
 382
 383     x = XLPTODP( dc, x );
 384     y = YLPTODP( dc, y );
 385
 386     dprintf_text(stddeb,"\treal coord: x=%i, y=%i, rect=(%d,%d-%d,%d)\n",
 387                           x, y, rect.left, rect.top, rect.right, rect.bottom);
 388
 389       /* Draw the rectangle */
 390
 391     if (flags & ETO_OPAQUE)
 392     {
 393         XSetForeground( display, dc->u.x.gc, dc->w.backgroundPixel );
 394         XFillRectangle( display, dc->u.x.drawable, dc->u.x.gc,
 395                         dc->w.DCOrgX + rect.left, dc->w.DCOrgY + rect.top,
 396                         rect.right-rect.left, rect.bottom-rect.top );
 397     }
 398     if (!count) return TRUE;  /* Nothing more to do */
 399
 400       /* Compute text starting position */
 401
 402     XTextExtents( font, str, count, &dir, &ascent, &descent, &info );
 403
 404     if (lpDx) /* have explicit character cell x offsets */
 405     {
 406         /* sum lpDx array and add the width of last character */
 407
 408         info.width = XTextWidth( font, str + count - 1, 1) + dc->w.charExtra;
 409         if (str[count-1] == (char)dc->u.x.font.metrics.tmBreakChar)
 410             info.width += dc->w.breakExtra;
 411
 412         for (i = 0; i < count; i++) info.width += lpDx[i];
 413     }
 414     else
 415        info.width += count*dc->w.charExtra + dc->w.breakExtra*dc->w.breakCount;
 416
 417     switch( dc->w.textAlign & (TA_LEFT | TA_RIGHT | TA_CENTER) )
 418     {
 419       case TA_LEFT:
 420           if (dc->w.textAlign & TA_UPDATECP)
 421               dc->w.CursPosX = XDPTOLP( dc, x + info.width );
 422           break;
 423       case TA_RIGHT:
 424           x -= info.width;
 425           if (dc->w.textAlign & TA_UPDATECP) dc->w.CursPosX = XDPTOLP( dc, x );
 426           break;
 427       case TA_CENTER:
 428           x -= info.width / 2;
 429           break;
 430     }
 431
 432     switch( dc->w.textAlign & (TA_TOP | TA_BOTTOM | TA_BASELINE) )
 433     {
 434       case TA_TOP:
 435           y += font->ascent;
 436           break;
 437       case TA_BOTTOM:
 438           y -= font->descent;
 439           break;
 440       case TA_BASELINE:
 441           break;
 442     }
 443
 444       /* Set the clip region */
 445
 446     if (flags & ETO_CLIPPED)
 447     {
 448        if (dc->w.flags & DC_MEMORY)
 449        {
 450           hRgnClip = dc->w.hClipRgn;
 451           CLIPPING_IntersectClipRect(dc, rect.left, rect.top, rect.right, rect.bottom,
 452                                          CLIP_INTERSECT | CLIP_KEEPRGN);
 453        }
 454        else
 455        {
 456           SaveVisRgn( hdc );
 457           IntersectVisRect( hdc, rect.left, rect.top, rect.right, rect.bottom );
 458        }
 459     }
 460
 461       /* Draw the text background if necessary */
 462
 463     if (dc->w.backgroundMode != TRANSPARENT)
 464     {
 465           /* If rectangle is opaque and clipped, do nothing */
 466         if (!(flags & ETO_CLIPPED) || !(flags & ETO_OPAQUE))
 467         {
 468               /* Only draw if rectangle is not opaque or if some */
 469               /* text is outside the rectangle */
 470             if (!(flags & ETO_OPAQUE) ||
 471                 (x < rect.left) ||
 472                 (x + info.width >= rect.right) ||
 473                 (y-font->ascent < rect.top) ||
 474                 (y+font->descent >= rect.bottom))
 475             {
 476                 XSetForeground( display, dc->u.x.gc, dc->w.backgroundPixel );
 477                 XFillRectangle( display, dc->u.x.drawable, dc->u.x.gc,
 478                                 dc->w.DCOrgX + x,
 479                                 dc->w.DCOrgY + y - font->ascent,
 480                                 info.width,
 481                                 font->ascent + font->descent );
 482             }
 483         }
 484     }
 485
 486     /* Draw the text (count > 0 verified) */
 487
 488     XSetForeground( display, dc->u.x.gc, dc->w.textPixel );
 489     if (!dc->w.charExtra && !dc->w.breakExtra && !lpDx)
 490     {
 491         XDrawString( display, dc->u.x.drawable, dc->u.x.gc,
 492                      dc->w.DCOrgX + x, dc->w.DCOrgY + y, str, count );
 493     }
 494     else  /* Now the fun begins... */
 495     {
 496         XTextItem *items, *pitem;
 497         int delta;
 498
 499         /* allocate max items */
 500
 501         pitem = items = xmalloc( count * sizeof(XTextItem) );
 502         delta = i = 0;
 503         while (i < count)
 504         {
 505             /* initialize text item with accumulated delta */
 506
 507             pitem->chars  = (char *)str + i;
 508             pitem->delta  = delta;
 509             pitem->nchars = 0;
 510             pitem->font   = None;
 511             delta = 0;
 512
 513             /* stuff characters into the same XTextItem until new delta
 514              * becomes  non-zero */
 515
 516             do
 517             {
 518                 if (lpDx) delta += lpDx[i] - XTextWidth( font, str + i, 1);
 519                 else
 520                 {
 521                     delta += dc->w.charExtra;
 522                     if (str[i] == (char)dc->u.x.font.metrics.tmBreakChar)
 523                         delta += dc->w.breakExtra;
 524                 }
 525                 pitem->nchars++;
 526             }
 527             while ((++i < count) && !delta);
 528             pitem++;
 529         }
 530
 531         XDrawText( display, dc->u.x.drawable, dc->u.x.gc,
 532                    dc->w.DCOrgX + x, dc->w.DCOrgY + y, items, pitem - items );
 533         free( items );
 534     }
 535
 536       /* Draw underline and strike-out if needed */
 537
 538     if (dc->u.x.font.metrics.tmUnderlined)
 539     {
 540         long linePos, lineWidth;
 541         if (!XGetFontProperty( font, XA_UNDERLINE_POSITION, &linePos ))
 542             linePos = font->descent-1;
 543         if (!XGetFontProperty( font, XA_UNDERLINE_THICKNESS, &lineWidth ))
 544             lineWidth = 0;
 545         else if (lineWidth == 1) lineWidth = 0;
 546         XSetLineAttributes( display, dc->u.x.gc, lineWidth,
 547                             LineSolid, CapRound, JoinBevel );
 548         XDrawLine( display, dc->u.x.drawable, dc->u.x.gc,
 549                    dc->w.DCOrgX + x, dc->w.DCOrgY + y + linePos,
 550                    dc->w.DCOrgX + x + info.width, dc->w.DCOrgY + y + linePos );
 551     }
 552     if (dc->u.x.font.metrics.tmStruckOut)
 553     {
 554         long lineAscent, lineDescent;
 555         if (!XGetFontProperty( font, XA_STRIKEOUT_ASCENT, &lineAscent ))
 556             lineAscent = font->ascent / 3;
 557         if (!XGetFontProperty( font, XA_STRIKEOUT_DESCENT, &lineDescent ))
 558             lineDescent = -lineAscent;
 559         XSetLineAttributes( display, dc->u.x.gc, lineAscent + lineDescent,
 560                             LineSolid, CapRound, JoinBevel );
 561         XDrawLine( display, dc->u.x.drawable, dc->u.x.gc,
 562                    dc->w.DCOrgX + x, dc->w.DCOrgY + y - lineAscent,
 563                    dc->w.DCOrgX + x + info.width, dc->w.DCOrgY + y - lineAscent );
 564     }
 565
 566     if (flags & ETO_CLIPPED)
 567     {
 568         if( dc->w.flags & DC_MEMORY )
 569              SelectClipRgn( hdc, hRgnClip );
 570         else RestoreVisRgn( hdc );
 571     }
 572     return TRUE;
 573 }
 574
 575
 576 /***********************************************************************
 577  *           ExtTextOut32A    (GDI32.98)
 578  */
 579 BOOL32 ExtTextOut32A( HDC32 hdc, INT32 x, INT32 y, UINT32 flags,
 580                       const RECT32 *lprect, LPCSTR str, UINT32 count,
 581                       const INT32 *lpDx )
 582 {
 583     RECT16 rect16;
 584
 585     if (lpDx) fprintf( stderr, "ExtTextOut32A: lpDx not implemented\n" );
 586     if (!lprect)
 587         return ExtTextOut16( (HDC16)hdc, (INT16)x, (INT16)y, (UINT16)flags,
 588                              NULL, str, (UINT16)count, NULL );
 589     CONV_RECT32TO16( lprect, &rect16 );
 590     return ExtTextOut16( (HDC16)hdc, (INT16)x, (INT16)y, (UINT16)flags,
 591                          &rect16, str, (UINT16)count, NULL );
 592 }
 593
 594
 595 /***********************************************************************
 596  *           ExtTextOut32W    (GDI32.99)
 597  */
 598 BOOL32 ExtTextOut32W( HDC32 hdc, INT32 x, INT32 y, UINT32 flags,
 599                       const RECT32 *lprect, LPCWSTR str, UINT32 count,
 600                       const INT32 *lpDx )
 601 {
 602     char *p = STRING32_DupUniToAnsi( str );
 603     INT32 ret = ExtTextOut32A( hdc, x, y, flags, lprect, p, count, lpDx );
 604     free(p);
 605     return ret;
 606 }
 607
 608
 609 /***********************************************************************
 610  *           TextOut16    (GDI.33)
 611  */
 612 BOOL16 TextOut16( HDC16 hdc, INT16 x, INT16 y, LPCSTR str, INT16 count )
 613 {
 614     return ExtTextOut16( hdc, x, y, 0, NULL, str, count, NULL );
 615 }
 616
 617
 618 /***********************************************************************
 619  *           TextOut32A    (GDI32.355)
 620  */
 621 BOOL32 TextOut32A( HDC32 hdc, INT32 x, INT32 y, LPCSTR str, INT32 count )
 622 {
 623     return ExtTextOut32A( hdc, x, y, 0, NULL, str, count, NULL );
 624 }
 625
 626
 627 /***********************************************************************
 628  *           TextOut32W    (GDI32.356)
 629  */
 630 BOOL32 TextOut32W( HDC32 hdc, INT32 x, INT32 y, LPCWSTR str, INT32 count )
 631 {
 632     return ExtTextOut32W( hdc, x, y, 0, NULL, str, count, NULL );
 633 }
 634
 635
 636 /***********************************************************************
 637  *           GrayString   (USER.185)
 638  */
 639 BOOL GrayString(HDC hdc, HBRUSH hbr, GRAYSTRINGPROC16 gsprc, LPARAM lParam,
 640                 INT cch, INT x, INT y, INT cx, INT cy)
 641 {
 642     BOOL ret;
 643     COLORREF current_color;
 644
 645     if (!cch) cch = lstrlen16( (LPCSTR)PTR_SEG_TO_LIN(lParam) );
 646     if (gsprc) return gsprc( hdc, lParam, cch );
 647     current_color = GetTextColor( hdc );
 648     SetTextColor( hdc, GetSysColor(COLOR_GRAYTEXT) );
 649     ret = TextOut16( hdc, x, y, (LPCSTR)PTR_SEG_TO_LIN(lParam), cch );
 650     SetTextColor( hdc, current_color );
 651     return ret;
 652 }
 653
 654
 655 /***********************************************************************
 656  *           TEXT_TabbedTextOut
 657  *
 658  * Helper function for TabbedTextOut() and GetTabbedTextExtent().
 659  * Note: this doesn't work too well for text-alignment modes other
 660  *       than TA_LEFT|TA_TOP. But we want bug-for-bug compatibility :-)
 661  */
 662 LONG TEXT_TabbedTextOut( HDC hdc, int x, int y, LPSTR lpstr, int count,
 663                          int cTabStops, LPINT16 lpTabPos, int nTabOrg,
 664                          BOOL fDisplayText)
 665 {
 666     WORD defWidth;
 667     DWORD extent = 0;
 668     int i, tabPos = x;
 669     int start = x;
 670
 671     if (cTabStops == 1)
 672     {
 673         defWidth = *lpTabPos;
 674         cTabStops = 0;
 675     }
 676     else
 677     {
 678         TEXTMETRIC16 tm;
 679         GetTextMetrics16( hdc, &tm );
 680         defWidth = 8 * tm.tmAveCharWidth;
 681     }
 682
 683     while (count > 0)
 684     {
 685         for (i = 0; i < count; i++)
 686             if (lpstr[i] == '\t') break;
 687         extent = GetTextExtent( hdc, lpstr, i );
 688         while ((cTabStops > 0) && (nTabOrg + *lpTabPos <= x + LOWORD(extent)))
 689         {
 690             lpTabPos++;
 691             cTabStops--;
 692         }
 693         if (i == count)
 694             tabPos = x + LOWORD(extent);
 695         else if (cTabStops > 0)
 696             tabPos = nTabOrg + *lpTabPos;
 697         else
 698             tabPos = nTabOrg + ((x + LOWORD(extent) - nTabOrg) / defWidth + 1) * defWidth;
 699         if (fDisplayText)
 700         {
 701             RECT16 r;
 702             SetRect16( &r, x, y, tabPos, y+HIWORD(extent) );
 703             ExtTextOut16( hdc, x, y,
 704                           GetBkMode(hdc) == OPAQUE ? ETO_OPAQUE : 0,
 705                           &r, lpstr, i, NULL );
 706         }
 707         x = tabPos;
 708         count -= i+1;
 709         lpstr += i+1;
 710     }
 711     return MAKELONG(tabPos - start, HIWORD(extent));
 712 }
 713
 714
 715 /***********************************************************************
 716  *           TabbedTextOut    (USER.196)
 717  */
 718 LONG TabbedTextOut( HDC hdc, short x, short y, LPSTR lpstr, short count,
 719                     short cTabStops, LPINT16 lpTabPos, short nTabOrg )
 720 {
 721     dprintf_text( stddeb, "TabbedTextOut: %04x %d,%d '%*.*s' %d\n",
 722                   hdc, x, y, count, count, lpstr, count );
 723     return TEXT_TabbedTextOut( hdc, x, y, lpstr, count, cTabStops,
 724                                lpTabPos, nTabOrg, TRUE );
 725 }
 726
 727
 728 /***********************************************************************
 729  *           GetTabbedTextExtent    (USER.197)
 730  */
 731 DWORD GetTabbedTextExtent( HDC hdc, LPSTR lpstr, int count,
 732                           int cTabStops, LPINT16 lpTabPos )
 733 {
 734     dprintf_text( stddeb, "GetTabbedTextExtent: %04x '%*.*s' %d\n",
 735                   hdc, count, count, lpstr, count );
 736     return TEXT_TabbedTextOut( hdc, 0, 0, lpstr, count, cTabStops,
 737                                lpTabPos, 0, FALSE );
 738 }