text: /*
   * USER text functions
   *
   * Copyright 1993, 1994 Alexandre Julliard
   * Copyright 2002 Bill Medland
   *
   * Contains
   *   1.  DrawText functions
   *   2.  GrayString functions
   *   3.  TabbedText functions
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
   */
  
  #include "config.h"
  #include "wine/port.h"
  
  #include <stdarg.h>
  #include <stdlib.h>
  #include <string.h>
  #include <assert.h>
  
  #include "windef.h"
  #include "winbase.h"
  #include "wingdi.h"
  #include "wine/unicode.h"
  #include "winnls.h"
  #include "controls.h"
  #include "usp10.h"
  #include "user_private.h"
  #include "wine/debug.h"
  
  WINE_DEFAULT_DEBUG_CHANNEL(text);
  
  /*********************************************************************
   *
   *            DrawText functions
   *
   * Design issues
   *   How many buffers to use
   *     While processing in DrawText there are potentially three different forms
   *     of the text that need to be held.  How are they best held?
   *     1. The original text is needed, of course, to see what to display.
   *     2. The text that will be returned to the user if the DT_MODIFYSTRING is
   *        in effect.
   *     3. The buffered text that is about to be displayed e.g. the current line.
   *        Typically this will exclude the ampersands used for prefixing etc.
   *
   *     Complications.
   *     a. If the buffered text to be displayed includes the ampersands then
   *        we will need special measurement and draw functions that will ignore
   *        the ampersands (e.g. by copying to a buffer without the prefix and
   *        then using the normal forms).  This may involve less space but may
   *        require more processing.  e.g. since a line containing tabs may
   *        contain several underlined characters either we need to carry around
   *        a list of prefix locations or we may need to locate them several
   *        times.
   *     b. If we actually directly modify the "original text" as we go then we
   *        will need some special "caching" to handle the fact that when we
   *        ellipsify the text the ellipsis may modify the next line of text,
   *        which we have not yet processed.  (e.g. ellipsification of a W at the
   *        end of a line will overwrite the W, the \n and the first character of
   *        the next line, and a \0 will overwrite the second.  Try it!!)
   *
   *     Option 1.  Three separate storages. (To be implemented)
   *       If DT_MODIFYSTRING is in effect then allocate an extra buffer to hold
   *       the edited string in some form, either as the string itself or as some
   *       sort of "edit list" to be applied just before returning.
   *       Use a buffer that holds the ellipsified current line sans ampersands
   *       and accept the need occasionally to recalculate the prefixes (if
   *       DT_EXPANDTABS and not DT_NOPREFIX and not DT_HIDEPREFIX)
   */
  
  #define TAB     9
  #define LF     10
  #define CR     13
  #define SPACE  32
  #define PREFIX 38
  #define ALPHA_PREFIX 30 /* Win16: Alphabet prefix */
  #define KANA_PREFIX  31 /* Win16: Katakana prefix */
  
  #define FORWARD_SLASH '/'
  #define BACK_SLASH '\\'
  
  static const WCHAR ELLIPSISW[] = {'.','.','.', 0};
  
  typedef struct tag_ellipsis_data
  {
      int before;
      int len;
      int under;
      int after;
  } ellipsis_data;
  
  /*********************************************************************
   *                      TEXT_Ellipsify (static)
   *
   *  Add an ellipsis to the end of the given string whilst ensuring it fits.
   *
   * If the ellipsis alone doesn't fit then it will be returned anyway.
   *
   * See Also TEXT_PathEllipsify
   *
   * Arguments
   *   hdc        [in] The handle to the DC that defines the font.
   *   str        [in/out] The string that needs to be modified.
   *   max_str    [in] The dimension of str (number of WCHAR).
   *   len_str    [in/out] The number of characters in str
   *   width      [in] The maximum width permitted (in logical coordinates)
   *   size       [out] The dimensions of the text
   *   modstr     [out] The modified form of the string, to be returned to the
   *                    calling program.  It is assumed that the caller has
   *                    made sufficient space available so we don't need to
   *                    know the size of the space.  This pointer may be NULL if
   *                    the modified string is not required.
   *   len_before [out] The number of characters before the ellipsis.
   *   len_ellip  [out] The number of characters in the ellipsis.
   *
   * See for example Microsoft article Q249678.
   *
   * For now we will simply use three dots rather than worrying about whether
   * the font contains an explicit ellipsis character.
   */
  static void TEXT_Ellipsify (HDC hdc, WCHAR *str, unsigned int max_len,
                              unsigned int *len_str, int width, SIZE *size,
                              WCHAR *modstr,
                              int *len_before, int *len_ellip)
  {
      unsigned int len_ellipsis;
      unsigned int lo, mid, hi;
  
      len_ellipsis = strlenW (ELLIPSISW);
      if (len_ellipsis > max_len) len_ellipsis = max_len;
      if (*len_str > max_len - len_ellipsis)
          *len_str = max_len - len_ellipsis;
  
      /* First do a quick binary search to get an upper bound for *len_str. */
      if (*len_str > 0 &&
          GetTextExtentExPointW(hdc, str, *len_str, width, NULL, NULL, size) &&
          size->cx > width)
      {
          for (lo = 0, hi = *len_str; lo < hi; )
          {
              mid = (lo + hi) / 2;
              if (!GetTextExtentExPointW(hdc, str, mid, width, NULL, NULL, size))
                  break;
              if (size->cx > width)
                  hi = mid;
              else
                  lo = mid + 1;
          }
          *len_str = hi;
      }
      /* Now this should take only a couple iterations at most. */
      for ( ; ; )
      {
          memcpy(str + *len_str, ELLIPSISW, len_ellipsis*sizeof(WCHAR));
  
          if (!GetTextExtentExPointW (hdc, str, *len_str + len_ellipsis, width,
                                      NULL, NULL, size)) break;
  
          if (!*len_str || size->cx <= width) break;
  
          (*len_str)--;
      }
      *len_ellip = len_ellipsis;
      *len_before = *len_str;
      *len_str += len_ellipsis;
  
      if (modstr)
      {
          memcpy (modstr, str, *len_str * sizeof(WCHAR));
          modstr[*len_str] = '\0';
      }
  }
  
  /*********************************************************************
   *                      TEXT_PathEllipsify (static)
   *
   * Add an ellipsis to the provided string in order to make it fit within
   * the width.  The ellipsis is added as specified for the DT_PATH_ELLIPSIS
   * flag.
   *
   * See Also TEXT_Ellipsify
   *
   * Arguments
   *   hdc        [in] The handle to the DC that defines the font.
   *   str        [in/out] The string that needs to be modified
   *   max_str    [in] The dimension of str (number of WCHAR).
   *   len_str    [in/out] The number of characters in str
   *   width      [in] The maximum width permitted (in logical coordinates)
   *   size       [out] The dimensions of the text
   *   modstr     [out] The modified form of the string, to be returned to the
   *                    calling program.  It is assumed that the caller has
   *                    made sufficient space available so we don't need to
   *                    know the size of the space.  This pointer may be NULL if
   *                    the modified string is not required.
   *   pellip     [out] The ellipsification results
   *
   * For now we will simply use three dots rather than worrying about whether
   * the font contains an explicit ellipsis character.
   *
   * The following applies, I think to Win95.  We will need to extend it for
   * Win98 which can have both path and end ellipsis at the same time (e.g.
   *  C:\MyLongFileName.Txt becomes ...\MyLongFileN...)
   *
   * The resulting string consists of as much as possible of the following:
   * 1. The ellipsis itself
   * 2. The last \ or / of the string (if any)
   * 3. Everything after the last \ or / of the string (if any) or the whole
   *    string if there is no / or \.  I believe that under Win95 this would
   *    include everything even though some might be clipped off the end whereas
   *    under Win98 that might be ellipsified too.
   *    Yet to be investigated is whether this would include wordbreaking if the
   *    filename is more than 1 word and splitting if DT_EDITCONTROL was in
   *    effect.  (If DT_EDITCONTROL is in effect then on occasions text will be
   *    broken within words).
   * 4. All the stuff before the / or \, which is placed before the ellipsis.
   */
  static void TEXT_PathEllipsify (HDC hdc, WCHAR *str, unsigned int max_len,
                                  unsigned int *len_str, int width, SIZE *size,
                                  WCHAR *modstr, ellipsis_data *pellip)
  {
      int len_ellipsis;
      int len_trailing;
      int len_under;
      WCHAR *lastBkSlash, *lastFwdSlash, *lastSlash;
  
      len_ellipsis = strlenW (ELLIPSISW);
      if (!max_len) return;
      if (len_ellipsis >= max_len) len_ellipsis = max_len - 1;
      if (*len_str + len_ellipsis >= max_len)
          *len_str = max_len - len_ellipsis-1;
          /* Hopefully this will never happen, otherwise it would probably lose
           * the wrong character
           */
      str[*len_str] = '\0'; /* to simplify things */
  
      lastBkSlash  = strrchrW (str, BACK_SLASH);
      lastFwdSlash = strrchrW (str, FORWARD_SLASH);
      lastSlash = lastBkSlash > lastFwdSlash ? lastBkSlash : lastFwdSlash;
      if (!lastSlash) lastSlash = str;
      len_trailing = *len_str - (lastSlash - str);
  
      /* overlap-safe movement to the right */
      memmove (lastSlash+len_ellipsis, lastSlash, len_trailing * sizeof(WCHAR));
      memcpy (lastSlash, ELLIPSISW, len_ellipsis*sizeof(WCHAR));
      len_trailing += len_ellipsis;
      /* From this point on lastSlash actually points to the ellipsis in front
       * of the last slash and len_trailing includes the ellipsis
       */
  
      len_under = 0;
      for ( ; ; )
      {
          if (!GetTextExtentExPointW (hdc, str, *len_str + len_ellipsis, width,
                                      NULL, NULL, size)) break;
  
          if (lastSlash == str || size->cx <= width) break;
  
          /* overlap-safe movement to the left */
          memmove (lastSlash-1, lastSlash, len_trailing * sizeof(WCHAR));
          lastSlash--;
          len_under++;
  
          assert (*len_str);
          (*len_str)--;
      }
      pellip->before = lastSlash-str;
      pellip->len = len_ellipsis;
      pellip->under = len_under;
      pellip->after = len_trailing - len_ellipsis;
      *len_str += len_ellipsis;
  
      if (modstr)
      {
          memcpy(modstr, str, *len_str * sizeof(WCHAR));
          modstr[*len_str] = '\0';
      }
  }
  
  /*********************************************************************
   *                      TEXT_WordBreak (static)
   *
   *  Perform wordbreak processing on the given string
   *
   * Assumes that DT_WORDBREAK has been specified and not all the characters
   * fit.  Note that this function should even be called when the first character
   * that doesn't fit is known to be a space or tab, so that it can swallow them.
   *
   * Note that the Windows processing has some strange properties.
   * 1. If the text is left-justified and there is room for some of the spaces
   *    that follow the last word on the line then those that fit are included on
   *    the line.
   * 2. If the text is centered or right-justified and there is room for some of
   *    the spaces that follow the last word on the line then all but one of those
   *    that fit are included on the line.
   * 3. (Reasonable behaviour) If the word breaking causes a space to be the first
   *    character of a new line it will be skipped.
   *
   * Arguments
   *   hdc        [in] The handle to the DC that defines the font.
   *   str        [in/out] The string that needs to be broken.
   *   max_str    [in] The dimension of str (number of WCHAR).
   *   len_str    [in/out] The number of characters in str
   *   width      [in] The maximum width permitted
   *   format     [in] The format flags in effect
   *   chars_fit  [in] The maximum number of characters of str that are already
   *              known to fit; chars_fit+1 is known not to fit.
   *   chars_used [out] The number of characters of str that have been "used" and
   *              do not need to be included in later text.  For example this will
   *              include any spaces that have been discarded from the start of
   *              the next line.
   *   size       [out] The size of the returned text in logical coordinates
   *
   * Pedantic assumption - Assumes that the text length is monotonically
   * increasing with number of characters (i.e. no weird kernings)
   *
   * Algorithm
   *
   * Work back from the last character that did fit to either a space or the last
   * character of a word, whichever is met first.
   * If there was one or the first character didn't fit then
   *     If the text is centered or right justified and that one character was a
   *     space then break the line before that character
   *     Otherwise break the line after that character
   *     and if the next character is a space then discard it.
   * Suppose there was none (and the first character did fit).
   *     If Break Within Word is permitted
   *         break the word after the last character that fits (there must be
   *         at least one; none is caught earlier).
   *     Otherwise
   *         discard any trailing space.
   *         include the whole word; it may be ellipsified later
   *
   * Break Within Word is permitted under a set of circumstances that are not
   * totally clear yet.  Currently our best guess is:
   *     If DT_EDITCONTROL is in effect and neither DT_WORD_ELLIPSIS nor
   *     DT_PATH_ELLIPSIS is
   */
  
  static void TEXT_WordBreak (HDC hdc, WCHAR *str, unsigned int max_str,
                              unsigned int *len_str,
                              int width, int format, unsigned int chars_fit,
                              unsigned int *chars_used, SIZE *size)
  {
      WCHAR *p;
      BOOL word_fits;
      SCRIPT_LOGATTR *sla;
      SCRIPT_ANALYSIS sa;
      int i;
  
      assert (format & DT_WORDBREAK);
      assert (chars_fit < *len_str);
  
      sla = HeapAlloc(GetProcessHeap(), 0, sizeof(SCRIPT_LOGATTR) * *len_str);
  
      memset(&sa, 0, sizeof(SCRIPT_ANALYSIS));
      sa.eScript = SCRIPT_UNDEFINED;
  
      ScriptBreak(str, *len_str, &sa, sla);
  
      /* Work back from the last character that did fit to either a space or the
       * last character of a word, whichever is met first.
       */
      p = str + chars_fit; /* The character that doesn't fit */
      i = chars_fit;
      word_fits = TRUE;
      if (!chars_fit)
          word_fits = FALSE;
      else if (sla[i].fSoftBreak) /* chars_fit < *len_str so this is valid */
      {
           /* the word just fitted */
          p--;
      }
      else
      {
          while (i > 0 && !sla[(--i)+1].fSoftBreak) p--;
          p--;
          word_fits = (i != 0 || sla[i+1].fSoftBreak );
      }
  
      /* If there was one. */
      if (word_fits)
      {
          BOOL next_is_space;
          /* break the line before/after that character */
          if (!(format & (DT_RIGHT | DT_CENTER)) || *p != SPACE)
              p++;
          next_is_space = (p - str) < *len_str && *p == SPACE;
          *len_str = p - str;
          /* and if the next character is a space then discard it. */
          *chars_used = *len_str;
          if (next_is_space)
              (*chars_used)++;
      }
      /* Suppose there was none. */
      else
      {
          if ((format & (DT_EDITCONTROL | DT_WORD_ELLIPSIS | DT_PATH_ELLIPSIS)) ==
              DT_EDITCONTROL)
          {
              /* break the word after the last character that fits (there must be
               * at least one). */
              if (!chars_fit)
                  ++chars_fit;
              *len_str = chars_fit;
              *chars_used = chars_fit;
  
              /* FIXME - possible error.  Since the next character is now removed
               * this could make the text longer so that it no longer fits, and
               * so we need a loop to test and shrink.
               */
          }
          /* Otherwise */
          else
          {
              /* discard any trailing space. */
              const WCHAR *e = str + *len_str;
              p = str + chars_fit;
              while (p < e && *p != SPACE)
                  p++;
              *chars_used = p - str;
              if (p < e) /* i.e. loop failed because *p == SPACE */
                  (*chars_used)++;
  
              /* include the whole word; it may be ellipsified later */
              *len_str = p - str;
              /* Possible optimisation; if DT_WORD_ELLIPSIS only use chars_fit+1
               * so that it will be too long
               */
          }
      }
      /* Remeasure the string */
      GetTextExtentExPointW (hdc, str, *len_str, 0, NULL, NULL, size);
      HeapFree(GetProcessHeap(),0, sla);
  }
  
  /*********************************************************************
   *                      TEXT_SkipChars
   *
   *  Skip over the given number of characters, bearing in mind prefix
   *  substitution and the fact that a character may take more than one
   *  WCHAR (Unicode surrogates are two words long) (and there may have been
   *  a trailing &)
   *
   * Parameters
   *   new_count  [out] The updated count
   *   new_str    [out] The updated pointer
   *   start_count [in] The count of remaining characters corresponding to the
   *                    start of the string
   *   start_str  [in] The starting point of the string
   *   max        [in] The number of characters actually in this segment of the
   *                   string (the & counts)
   *   n          [in] The number of characters to skip (if prefix then
   *                   &c counts as one)
   *   prefix     [in] Apply prefix substitution
   *
   * Return Values
   *   none
   *
   * Remarks
   *   There must be at least n characters in the string
   *   We need max because the "line" may have ended with a & followed by a tab
   *   or newline etc. which we don't want to swallow
   */
  
  static void TEXT_SkipChars (int *new_count, const WCHAR **new_str,
                              int start_count, const WCHAR *start_str,
                              int max, int n, int prefix)
  {
      /* This is specific to wide characters, MSDN doesn't say anything much
       * about Unicode surrogates yet and it isn't clear if _wcsinc will
       * correctly handle them so we'll just do this the easy way for now
       */
  
      if (prefix)
      {
          const WCHAR *str_on_entry = start_str;
          assert (max >= n);
          max -= n;
          while (n--)
          {
              if ((*start_str == PREFIX || *start_str == ALPHA_PREFIX) && max--)
                  start_str++;
              start_str++;
          }
          start_count -= (start_str - str_on_entry);
      }
      else
      {
          start_str += n;
          start_count -= n;
      }
      *new_str = start_str;
      *new_count = start_count;
  }
  
  /*********************************************************************
   *                      TEXT_Reprefix
   *
   *  Reanalyse the text to find the prefixed character.  This is called when
   *  wordbreaking or ellipsification has shortened the string such that the
   *  previously noted prefixed character is no longer visible.
   *
   * Parameters
   *   str        [in] The original string segment (including all characters)
   *   ns         [in] The number of characters in str (including prefixes)
   *   pe         [in] The ellipsification data
   *
   * Return Values
   *   The prefix offset within the new string segment (the one that contains the
   *   ellipses and does not contain the prefix characters) (-1 if none)
   */
  
  static int TEXT_Reprefix (const WCHAR *str, unsigned int ns,
                            const ellipsis_data *pe)
  {
      int result = -1;
      unsigned int i;
      unsigned int n = pe->before + pe->under + pe->after;
      assert (n <= ns);
      for (i = 0; i < n; i++, str++)
      {
          if (i == pe->before)
          {
              /* Reached the path ellipsis; jump over it */
              if (ns < pe->under) break;
              str += pe->under;
              ns -= pe->under;
              i += pe->under;
              if (!pe->after) break; /* Nothing after the path ellipsis */
          }
          if (!ns) break;
          ns--;
          if (*str == PREFIX || *str == ALPHA_PREFIX)
          {
              str++;
              if (!ns) break;
              if (*str != PREFIX)
                  result = (i < pe->before || pe->under == 0) ? i : i - pe->under + pe->len;
                  /* pe->len may be non-zero while pe_under is zero */
              ns--;
          }
      }
      return result;
  }
  
  /*********************************************************************
   *  Returns true if and only if the remainder of the line is a single
   *  newline representation or nothing
   */
  
  static BOOL remainder_is_none_or_newline (int num_chars, const WCHAR *str)
  {
      if (!num_chars) return TRUE;
      if (*str != LF && *str != CR) return FALSE;
      if (!--num_chars) return TRUE;
      if (*str == *(str+1)) return FALSE;
      str++;
      if (*str != CR && *str != LF) return FALSE;
      if (--num_chars) return FALSE;
      return TRUE;
  }
  
  /*********************************************************************
   *  Return next line of text from a string.
   *
   * hdc - handle to DC.
   * str - string to parse into lines.
   * count - length of str.
   * dest - destination in which to return line.
   * len - dest buffer size in chars on input, copied length into dest on output.
   * width - maximum width of line in pixels.
   * format - format type passed to DrawText.
   * retsize - returned size of the line in pixels.
   * last_line - TRUE if is the last line that will be processed
   * p_retstr - If DT_MODIFYSTRING this points to a cursor in the buffer in which
   *            the return string is built.
   * tabwidth - The width of a tab in logical coordinates
   * pprefix_offset - Here is where we return the offset within dest of the first
   *                  prefixed (underlined) character.  -1 is returned if there
   *                  are none.  Note that there may be more; the calling code
   *                  will need to use TEXT_Reprefix to find any later ones.
   * pellip - Here is where we return the information about any ellipsification
   *          that was carried out.  Note that if tabs are being expanded then
   *          this data will correspond to the last text segment actually
   *          returned in dest; by definition there would not have been any
   *          ellipsification in earlier text segments of the line.
   *
   * Returns pointer to next char in str after end of the line
   * or NULL if end of str reached.
   */
  static const WCHAR *TEXT_NextLineW( HDC hdc, const WCHAR *str, int *count,
                                   WCHAR *dest, int *len, int width, DWORD format,
                                   SIZE *retsize, int last_line, WCHAR **p_retstr,
                                   int tabwidth, int *pprefix_offset,
                                   ellipsis_data *pellip)
  {
      int i = 0, j = 0;
      int plen = 0;
      SIZE size;
      int maxl = *len;
      int seg_i, seg_count, seg_j;
      int max_seg_width;
      int num_fit;
      BOOL word_broken, line_fits, ellipsified;
      unsigned int j_in_seg;
      *pprefix_offset = -1;
  
      /* For each text segment in the line */
  
      retsize->cy = 0;
      while (*count)
      {
  
          /* Skip any leading tabs */
  
          if (str[i] == TAB && (format & DT_EXPANDTABS))
          {
              plen = ((plen/tabwidth)+1)*tabwidth;
              (*count)--; if (j < maxl) dest[j++] = str[i++]; else i++;
              while (*count && str[i] == TAB)
              {
                  plen += tabwidth;
                  (*count)--; if (j < maxl) dest[j++] = str[i++]; else i++;
              }
          }
  
  
          /* Now copy as far as the next tab or cr/lf or eos */
  
          seg_i = i;
          seg_count = *count;
          seg_j = j;
  
          while (*count &&
                 (str[i] != TAB || !(format & DT_EXPANDTABS)) &&
                 ((str[i] != CR && str[i] != LF) || (format & DT_SINGLELINE)))
          {
              if ((format & DT_NOPREFIX) || *count <= 1)
              {
                  (*count)--; if (j < maxl) dest[j++] = str[i++]; else i++;
                  continue;
              }
  
              if (str[i] == PREFIX || str[i] == ALPHA_PREFIX) {
                  (*count)--, i++; /* Throw away the prefix itself */
                  if (str[i] == PREFIX)
                  {
                      /* Swallow it before we see it again */
  		    (*count)--; if (j < maxl) dest[j++] = str[i++]; else i++;
                  }
  		else if (*pprefix_offset == -1 || *pprefix_offset >= seg_j)
                  {
                      *pprefix_offset = j;
                  }
                  /* else the previous prefix was in an earlier segment of the
                   * line; we will leave it to the drawing code to catch this
                   * one.
                   */
  	    }
              else if (str[i] == KANA_PREFIX)
              {
                  /* Throw away katakana access keys */
                  (*count)--, i++; /* skip the prefix */
                  (*count)--, i++; /* skip the letter */
              }
              else
              {
                  (*count)--; if (j < maxl) dest[j++] = str[i++]; else i++;
              }
          }
  
  
          /* Measure the whole text segment and possibly WordBreak and
           * ellipsify it
           */
  
          j_in_seg = j - seg_j;
          max_seg_width = width - plen;
          GetTextExtentExPointW (hdc, dest + seg_j, j_in_seg, max_seg_width, &num_fit, NULL, &size);
  
          /* The Microsoft handling of various combinations of formats is weird.
           * The following may very easily be incorrect if several formats are
           * combined, and may differ between versions (to say nothing of the
           * several bugs in the Microsoft versions).
           */
          word_broken = FALSE;
          line_fits = (num_fit >= j_in_seg);
          if (!line_fits && (format & DT_WORDBREAK))
          {
              const WCHAR *s;
              unsigned int chars_used;
              TEXT_WordBreak (hdc, dest+seg_j, maxl-seg_j, &j_in_seg,
                              max_seg_width, format, num_fit, &chars_used, &size);
              line_fits = (size.cx <= max_seg_width);
              /* and correct the counts */
              TEXT_SkipChars (count, &s, seg_count, str+seg_i, i-seg_i,
                              chars_used, !(format & DT_NOPREFIX));
              i = s - str;
              word_broken = TRUE;
          }
          pellip->before = j_in_seg;
          pellip->under = 0;
          pellip->after = 0;
          pellip->len = 0;
          ellipsified = FALSE;
          if (!line_fits && (format & DT_PATH_ELLIPSIS))
          {
              TEXT_PathEllipsify (hdc, dest + seg_j, maxl-seg_j, &j_in_seg,
                                  max_seg_width, &size, *p_retstr, pellip);
              line_fits = (size.cx <= max_seg_width);
              ellipsified = TRUE;
          }
          /* NB we may end up ellipsifying a word-broken or path_ellipsified
           * string */
          if ((!line_fits && (format & DT_WORD_ELLIPSIS)) ||
              ((format & DT_END_ELLIPSIS) &&
                ((last_line && *count) ||
                 (remainder_is_none_or_newline (*count, &str[i]) && !line_fits))))
          {
              int before, len_ellipsis;
              TEXT_Ellipsify (hdc, dest + seg_j, maxl-seg_j, &j_in_seg,
                              max_seg_width, &size, *p_retstr, &before, &len_ellipsis);
              if (before > pellip->before)
              {
                  /* We must have done a path ellipsis too */
                  pellip->after = before - pellip->before - pellip->len;
                  /* Leave the len as the length of the first ellipsis */
              }
              else
              {
                  /* If we are here after a path ellipsification it must be
                   * because even the ellipsis itself didn't fit.
                   */
                  assert (pellip->under == 0 && pellip->after == 0);
                  pellip->before = before;
                  pellip->len = len_ellipsis;
                  /* pellip->after remains as zero as does
                   * pellip->under
                   */
              }
              ellipsified = 1;
          }
          /* As an optimisation if we have ellipsified and we are expanding
           * tabs and we haven't reached the end of the line we can skip to it
           * now rather than going around the loop again.
           */
          if ((format & DT_EXPANDTABS) && ellipsified)
          {
              if (format & DT_SINGLELINE)
                  *count = 0;
              else
              {
                  while ((*count) && str[i] != CR && str[i] != LF)
                  {
                      (*count)--, i++;
                  }
              }
          }
  
          j = seg_j + j_in_seg;
          if (*pprefix_offset >= seg_j + pellip->before)
          {
              *pprefix_offset = TEXT_Reprefix (str + seg_i, i - seg_i, pellip);
              if (*pprefix_offset != -1)
                  *pprefix_offset += seg_j;
          }
  
          plen += size.cx;
          if (size.cy > retsize->cy)
              retsize->cy = size.cy;
  
          if (word_broken)
              break;
          else if (!*count)
              break;
          else if (str[i] == CR || str[i] == LF)
          {
              (*count)--, i++;
              if (*count && (str[i] == CR || str[i] == LF) && str[i] != str[i-1])
              {
                  (*count)--, i++;
              }
              break;
          }
          /* else it was a Tab and we go around again */
      }
  
      retsize->cx = plen;
      *len = j;
      if (*count)
          return (&str[i]);
      else
          return NULL;
  }
  
  
  /***********************************************************************
   *                      TEXT_DrawUnderscore
   *
   *  Draw the underline under the prefixed character
   *
   * Parameters
   *   hdc        [in] The handle of the DC for drawing
   *   x          [in] The x location of the line segment (logical coordinates)
   *   y          [in] The y location of where the underscore should appear
   *                   (logical coordinates)
   *   str        [in] The text of the line segment
   *   offset     [in] The offset of the underscored character within str
   *   rect       [in] Clipping rectangle (if not NULL)
   */
  
  static void TEXT_DrawUnderscore (HDC hdc, int x, int y, const WCHAR *str, int offset, const RECT *rect)
  {
      int prefix_x;
      int prefix_end;
      SIZE size;
      HPEN hpen;
      HPEN oldPen;
  
      GetTextExtentPointW (hdc, str, offset, &size);
      prefix_x = x + size.cx;
      GetTextExtentPointW (hdc, str, offset+1, &size);
      prefix_end = x + size.cx - 1;
      /* The above method may eventually be slightly wrong due to kerning etc. */
  
      /* Check for clipping */
      if (rect){
  	if (prefix_x > rect->right || prefix_end < rect->left || y < rect->top || y > rect->bottom)
  	    return; /* Completely outside */
  	/* Partially outside */
  	if (prefix_x   < rect->left ) prefix_x   = rect->left;
  	if (prefix_end > rect->right) prefix_end = rect->right;
      }
      
      hpen = CreatePen (PS_SOLID, 1, GetTextColor (hdc));
      oldPen = SelectObject (hdc, hpen);
      MoveToEx (hdc, prefix_x, y, NULL);
      LineTo (hdc, prefix_end, y);
      SelectObject (hdc, oldPen);
      DeleteObject (hpen);
  }
  
  /***********************************************************************
   *           DrawTextExW    (USER32.@)
   *
   * The documentation on the extra space required for DT_MODIFYSTRING at MSDN
   * is not quite complete, especially with regard to \0.  We will assume that
   * the returned string could have a length of up to i_count+3 and also have
   * a trailing \0 (which would be 4 more than a not-null-terminated string but
   * 3 more than a null-terminated string).  If this is not so then increase
   * the allowance in DrawTextExA.
   */
  #define MAX_BUFFER 1024
  INT WINAPI DrawTextExW( HDC hdc, LPWSTR str, INT i_count,
                          LPRECT rect, UINT flags, LPDRAWTEXTPARAMS dtp )
  {
      SIZE size;
      const WCHAR *strPtr;
      WCHAR *retstr, *p_retstr;
      size_t size_retstr;
      WCHAR line[MAX_BUFFER];
      int len, lh, count=i_count;
      TEXTMETRICW tm;
      int lmargin = 0, rmargin = 0;
      int x = rect->left, y = rect->top;
      int width = rect->right - rect->left;
      int max_width = 0;
      int last_line;
      int tabwidth /* to keep gcc happy */ = 0;
      int prefix_offset;
      ellipsis_data ellip;
      BOOL invert_y=FALSE;
  
      TRACE("%s, %d, [%s] %08x\n", debugstr_wn (str, count), count,
          wine_dbgstr_rect(rect), flags);
  
      if (dtp) TRACE("Params: iTabLength=%d, iLeftMargin=%d, iRightMargin=%d\n",
            dtp->iTabLength, dtp->iLeftMargin, dtp->iRightMargin);
  
      if (!str) return 0;
  
      strPtr = str;
  
      if (flags & DT_SINGLELINE)
          flags &= ~DT_WORDBREAK;
  
      GetTextMetricsW(hdc, &tm);
      if (flags & DT_EXTERNALLEADING)
  	lh = tm.tmHeight + tm.tmExternalLeading;
      else
  	lh = tm.tmHeight;
  
      if (str[0] && count == 0)
          return lh;
  
      if (dtp && dtp->cbSize != sizeof(DRAWTEXTPARAMS))
          return 0;
  
      if (count == -1)
      {
          count = strlenW(str);
          if (count == 0)
          {
              if( flags & DT_CALCRECT)
              {
                  rect->right = rect->left;
                  if( flags & DT_SINGLELINE)
                      rect->bottom = rect->top + lh;
                  else
                      rect->bottom = rect->top;
              }
              return lh;
          }
      }
  
      if (GetGraphicsMode(hdc) == GM_COMPATIBLE)
      {
          SIZE window_ext, viewport_ext;
          GetWindowExtEx(hdc, &window_ext);
          GetViewportExtEx(hdc, &viewport_ext);
          if ((window_ext.cy > 0) != (viewport_ext.cy > 0))
              invert_y = TRUE;
      }
  
      if (dtp)
      {
          lmargin = dtp->iLeftMargin;
          rmargin = dtp->iRightMargin;
          if (!(flags & (DT_CENTER | DT_RIGHT)))
              x += lmargin;
          dtp->uiLengthDrawn = 0;     /* This param RECEIVES number of chars processed */
      }
  
      if (flags & DT_EXPANDTABS)
      {
          int tabstop = ((flags & DT_TABSTOP) && dtp) ? dtp->iTabLength : 8;
  	tabwidth = tm.tmAveCharWidth * tabstop;
      }
  
      if (flags & DT_CALCRECT) flags |= DT_NOCLIP;
  
      if (flags & DT_MODIFYSTRING)
      {
          size_retstr = (count + 4) * sizeof (WCHAR);
          retstr = HeapAlloc(GetProcessHeap(), 0, size_retstr);
          if (!retstr) return 0;
          memcpy (retstr, str, size_retstr);
      }
      else
      {
          size_retstr = 0;
          retstr = NULL;
      }
      p_retstr = retstr;
  
      do
      {
  	len = sizeof(line)/sizeof(line[0]);
  	if (invert_y)
              last_line = !(flags & DT_NOCLIP) && y - ((flags & DT_EDITCONTROL) ? 2*lh-1 : lh) < rect->bottom;
  	else
              last_line = !(flags & DT_NOCLIP) && y + ((flags & DT_EDITCONTROL) ? 2*lh-1 : lh) > rect->bottom;
  	strPtr = TEXT_NextLineW(hdc, strPtr, &count, line, &len, width, flags, &size, last_line, &p_retstr, tabwidth, &prefix_offset, &ellip);
  
  	if (flags & DT_CENTER) x = (rect->left + rect->right -
  				    size.cx) / 2;
  	else if (flags & DT_RIGHT) x = rect->right - size.cx;
  
  	if (flags & DT_SINGLELINE)
  	{
  	    if (flags & DT_VCENTER) y = rect->top +
  	    	(rect->bottom - rect->top) / 2 - size.cy / 2;
  	    else if (flags & DT_BOTTOM) y = rect->bottom - size.cy;
          }
  
  	if (!(flags & DT_CALCRECT))
  	{
              const WCHAR *str = line;
              int xseg = x;
              while (len)
              {
                  int len_seg;
                  SIZE size;
                  if ((flags & DT_EXPANDTABS))
                  {
                      const WCHAR *p;
                      p = str; while (p < str+len && *p != TAB) p++;
                      len_seg = p - str;
                      if (len_seg != len && !GetTextExtentPointW(hdc, str, len_seg, &size))
                      {
                          HeapFree (GetProcessHeap(), 0, retstr);
                          return 0;
                      }
                  }
                  else
                      len_seg = len;
  
                  if (!ExtTextOutW( hdc, xseg, y,
                                   ((flags & DT_NOCLIP) ? 0 : ETO_CLIPPED) |
                                   ((flags & DT_RTLREADING) ? ETO_RTLREADING : 0),
                                   rect, str, len_seg, NULL ))
                  {
                      HeapFree (GetProcessHeap(), 0, retstr);
                      return 0;
                  }
                  if (prefix_offset != -1 && prefix_offset < len_seg)
                  {
                      TEXT_DrawUnderscore (hdc, xseg, y + tm.tmAscent + 1, str, prefix_offset, (flags & DT_NOCLIP) ? NULL : rect);
                  }
                  len -= len_seg;
                  str += len_seg;
                  if (len)
                  {
                      assert ((flags & DT_EXPANDTABS) && *str == TAB);
                      len--; str++;
                      xseg += ((size.cx/tabwidth)+1)*tabwidth;
                      if (prefix_offset != -1)
                      {
                          if (prefix_offset < len_seg)
                          {
                              /* We have just drawn an underscore; we ought to
                               * figure out where the next one is.  I am going
                               * to leave it for now until I have a better model
                               * for the line, which will make reprefixing easier.
                               * This is where ellip would be used.
                               */
                              prefix_offset = -1;
                          }
                          else
                              prefix_offset -= len_seg;
                      }
                  }
              }
  	}
  	else if (size.cx > max_width)
  	    max_width = size.cx;
  
          if (invert_y)
  	    y -= lh;
          else
  	    y += lh;
          if (dtp)
              dtp->uiLengthDrawn += len;
      }
      while (strPtr && !last_line);
  
      if (flags & DT_CALCRECT)
      {
  	rect->right = rect->left + max_width;
  	rect->bottom = y;
          if (dtp)
              rect->right += lmargin + rmargin;
      }
      if (retstr)
      {
          memcpy (str, retstr, size_retstr);
          HeapFree (GetProcessHeap(), 0, retstr);
      }
      return y - rect->top;
  }
  
  /***********************************************************************
   *           DrawTextExA    (USER32.@)
   *
   * If DT_MODIFYSTRING is specified then there must be room for up to
   * 4 extra characters.  We take great care about just how much modified
   * string we return.
   */
  INT WINAPI DrawTextExA( HDC hdc, LPSTR str, INT count,
                          LPRECT rect, UINT flags, LPDRAWTEXTPARAMS dtp )
  {
     WCHAR *wstr;
     WCHAR *p;
     INT ret = 0;
     int i;
     DWORD wcount;
     DWORD wmax;
     DWORD amax;
     UINT cp;
  
     if (!count) return 0;
     if (!str && count > 0) return 0;
     if( !str || ((count == -1) && !(count = strlen(str))))
     {
          int lh;
          TEXTMETRICA tm;
  
          if (dtp && dtp->cbSize != sizeof(DRAWTEXTPARAMS))
              return 0;
  
          GetTextMetricsA(hdc, &tm);
          if (flags & DT_EXTERNALLEADING)
              lh = tm.tmHeight + tm.tmExternalLeading;
          else
              lh = tm.tmHeight;
  
          if( flags & DT_CALCRECT)
          {
              rect->right = rect->left;
              if( flags & DT_SINGLELINE)
                  rect->bottom = rect->top + lh;
              else
                  rect->bottom = rect->top;
          }
          return lh;
     }
     cp = GdiGetCodePage( hdc );
     wcount = MultiByteToWideChar( cp, 0, str, count, NULL, 0 );
     wmax = wcount;
     amax = count;
     if (flags & DT_MODIFYSTRING)
     {
          wmax += 4;
          amax += 4;
     }
     wstr = HeapAlloc(GetProcessHeap(), 0, wmax * sizeof(WCHAR));
     if (wstr)
     {
         MultiByteToWideChar( cp, 0, str, count, wstr, wcount );
         if (flags & DT_MODIFYSTRING)
             for (i=4, p=wstr+wcount; i--; p++) *p=0xFFFE;
             /* Initialise the extra characters so that we can see which ones
              * change.  U+FFFE is guaranteed to be not a unicode character and
              * so will not be generated by DrawTextEx itself.
              */
         ret = DrawTextExW( hdc, wstr, wcount, rect, flags, dtp );
         if (flags & DT_MODIFYSTRING)
         {
              /* Unfortunately the returned string may contain multiple \0s
               * and so we need to measure it ourselves.
               */
              for (i=4, p=wstr+wcount; i-- && *p != 0xFFFE; p++) wcount++;
              WideCharToMultiByte( cp, 0, wstr, wcount, str, amax, NULL, NULL );
         }
         HeapFree(GetProcessHeap(), 0, wstr);
     }
     return ret;
  }
  
  /***********************************************************************
   *           DrawTextW    (USER32.@)
   */
  INT WINAPI DrawTextW( HDC hdc, LPCWSTR str, INT count, LPRECT rect, UINT flags )
  {
      DRAWTEXTPARAMS dtp;
  
      memset (&dtp, 0, sizeof(dtp));
      dtp.cbSize = sizeof(dtp);
      if (flags & DT_TABSTOP)
      {
          dtp.iTabLength = (flags >> 8) & 0xff;
          flags &= 0xffff00ff;
      }
      return DrawTextExW(hdc, (LPWSTR)str, count, rect, flags, &dtp);
  }
  
  /***********************************************************************
   *           DrawTextA    (USER32.@)
   */
  INT WINAPI DrawTextA( HDC hdc, LPCSTR str, INT count, LPRECT rect, UINT flags )
  {
      DRAWTEXTPARAMS dtp;
  
      memset (&dtp, 0, sizeof(dtp));
      dtp.cbSize = sizeof(dtp);
      if (flags & DT_TABSTOP)
      {
          dtp.iTabLength = (flags >> 8) & 0xff;
          flags &= 0xffff00ff;
      }
      return DrawTextExA( hdc, (LPSTR)str, count, rect, flags, &dtp );
  }
  
  /***********************************************************************
   *
   *           GrayString functions
   */
  
  /* callback for ASCII gray string proc */
  static BOOL CALLBACK gray_string_callbackA( HDC hdc, LPARAM param, INT len )
  {
      return TextOutA( hdc, 0, 0, (LPCSTR)param, len );
  }
  
  /* callback for Unicode gray string proc */
  static BOOL CALLBACK gray_string_callbackW( HDC hdc, LPARAM param, INT len )
  {
      return TextOutW( hdc, 0, 0, (LPCWSTR)param, len );
  }
  
  /***********************************************************************
   *           TEXT_GrayString
   */
  static BOOL TEXT_GrayString(HDC hdc, HBRUSH hb, GRAYSTRINGPROC fn, LPARAM lp, INT len,
                              INT x, INT y, INT cx, INT cy )
  {
      HBITMAP hbm, hbmsave;
      HBRUSH hbsave;
      HFONT hfsave;
      HDC memdc;
      int slen = len;
      BOOL retval = TRUE;
      COLORREF fg, bg;
  
      if(!hdc) return FALSE;
      if (!(memdc = CreateCompatibleDC(hdc))) return FALSE;
  
      hbm = CreateBitmap(cx, cy, 1, 1, NULL);
      hbmsave = SelectObject(memdc, hbm);
      hbsave = SelectObject( memdc, GetStockObject(BLACK_BRUSH) );
      PatBlt( memdc, 0, 0, cx, cy, PATCOPY );
      SelectObject( memdc, hbsave );
      SetTextColor(memdc, RGB(255, 255, 255));
      SetBkColor(memdc, RGB(0, 0, 0));
      hfsave = SelectObject(memdc, GetCurrentObject(hdc, OBJ_FONT));
  
      retval = fn(memdc, lp, slen);
      SelectObject(memdc, hfsave);
  
  /*
   * Windows doc says that the bitmap isn't grayed when len == -1 and
   * the callback function returns FALSE. However, testing this on
   * win95 showed otherwise...
  */
  #ifdef GRAYSTRING_USING_DOCUMENTED_BEHAVIOUR
      if(retval || len != -1)
  #endif
      {
          hbsave = SelectObject(memdc, SYSCOLOR_Get55AABrush());
          PatBlt(memdc, 0, 0, cx, cy, 0x000A0329);
          SelectObject(memdc, hbsave);
      }
  
      if(hb) hbsave = SelectObject(hdc, hb);
      fg = SetTextColor(hdc, RGB(0, 0, 0));
      bg = SetBkColor(hdc, RGB(255, 255, 255));
      BitBlt(hdc, x, y, cx, cy, memdc, 0, 0, 0x00E20746);
      SetTextColor(hdc, fg);
      SetBkColor(hdc, bg);
      if(hb) SelectObject(hdc, hbsave);
  
      SelectObject(memdc, hbmsave);
      DeleteObject(hbm);
      DeleteDC(memdc);
      return retval;
  }
  
  
  /***********************************************************************
   *           GrayStringA   (USER32.@)
   */
  BOOL WINAPI GrayStringA( HDC hdc, HBRUSH hbr, GRAYSTRINGPROC gsprc,
                           LPARAM lParam, INT cch, INT x, INT y,
                           INT cx, INT cy )
  {
      if (!cch) cch = strlen( (LPCSTR)lParam );
      if ((cx == 0 || cy == 0) && cch != -1)
      {
          SIZE s;
          GetTextExtentPoint32A( hdc, (LPCSTR)lParam, cch, &s );
          if (cx == 0) cx = s.cx;
          if (cy == 0) cy = s.cy;
      }
      if (!gsprc) gsprc = gray_string_callbackA;
      return TEXT_GrayString( hdc, hbr, gsprc, lParam, cch, x, y, cx, cy );
  }
  
  
  /***********************************************************************
   *           GrayStringW   (USER32.@)
   */
  BOOL WINAPI GrayStringW( HDC hdc, HBRUSH hbr, GRAYSTRINGPROC gsprc,
                           LPARAM lParam, INT cch, INT x, INT y,
                           INT cx, INT cy )
  {
      if (!cch) cch = strlenW( (LPCWSTR)lParam );
      if ((cx == 0 || cy == 0) && cch != -1)
      {
          SIZE s;
          GetTextExtentPoint32W( hdc, (LPCWSTR)lParam, cch, &s );
          if (cx == 0) cx = s.cx;
          if (cy == 0) cy = s.cy;
      }
      if (!gsprc) gsprc = gray_string_callbackW;
      return TEXT_GrayString( hdc, hbr, gsprc, lParam, cch, x, y, cx, cy );
  }
  
  
  /***********************************************************************
   *           TEXT_TabbedTextOut
   *
   * Helper function for TabbedTextOut() and GetTabbedTextExtent().
   * Note: this doesn't work too well for text-alignment modes other
   *       than TA_LEFT|TA_TOP. But we want bug-for-bug compatibility :-)
   */
  static LONG TEXT_TabbedTextOut( HDC hdc, INT x, INT y, LPCWSTR lpstr,
                                  INT count, INT cTabStops, const INT *lpTabPos, INT nTabOrg,
                                  BOOL fDisplayText )
  {
      INT defWidth;
      SIZE extent;
      int i, j;
      int start = x;
  
      if (!lpstr || count == 0) return 0;
  
      if (!lpTabPos)
          cTabStops=0;
  
      if (cTabStops == 1)
      {
          defWidth = *lpTabPos;
          cTabStops = 0;
      }
      else
      {
          TEXTMETRICW tm;
          GetTextMetricsW( hdc, &tm );
          defWidth = 8 * tm.tmAveCharWidth;
      }
  
      while (count > 0)
      {
          RECT r;
          INT x0;
          x0 = x;
          r.left = x0;
          /* chop the string into substrings of 0 or more <tabs> 
           * possibly followed by 1 or more normal characters */
          for (i = 0; i < count; i++)
              if (lpstr[i] != '\t') break;
          for (j = i; j < count; j++)
              if (lpstr[j] == '\t') break;
          /* get the extent of the normal character part */
          GetTextExtentPointW( hdc, lpstr + i, j - i , &extent );
          /* and if there is a <tab>, calculate its position */
          if( i) {
              /* get x coordinate for the drawing of this string */
              for (; cTabStops >= i; lpTabPos++, cTabStops--)
              {
                  if( nTabOrg + abs( *lpTabPos) > x) {
                      if( lpTabPos[ i - 1] >= 0) {
                          /* a left aligned tab */
                          x0 = nTabOrg + lpTabPos[i-1];
                          x = x0 + extent.cx;
                          break;
                      }
                      else
                      {
                          /* if tab pos is negative then text is right-aligned
                           * to tab stop meaning that the string extends to the
                           * left, so we must subtract the width of the string */
                          if (nTabOrg - lpTabPos[ i - 1] - extent.cx > x)
                          {
                              x = nTabOrg - lpTabPos[ i - 1];
                              x0 = x - extent.cx;
                              break;
                          }
                      }
                  }
              }
              /* if we have run out of tab stops and we have a valid default tab
               * stop width then round x up to that width */
              if ((cTabStops < i) && (defWidth > 0)) {
                  x0 = nTabOrg + ((x - nTabOrg) / defWidth + i) * defWidth;
                  x = x0 + extent.cx;
              } else if ((cTabStops < i) && (defWidth < 0)) {
                  x = nTabOrg + ((x - nTabOrg + extent.cx) / -defWidth + i)
                      * -defWidth;
                  x0 = x - extent.cx;
              }
          } else
              x += extent.cx;
          
          if (fDisplayText)
          {
              r.top    = y;
              r.right  = x;
              r.bottom = y + extent.cy;
              ExtTextOutW( hdc, x0, y, GetBkMode(hdc) == OPAQUE ? ETO_OPAQUE : 0,
                           &r, lpstr + i, j - i, NULL );
          }
          count -= j;
          lpstr += j;
      }
      return MAKELONG(x - start, extent.cy);
  }
  
  
  /***********************************************************************
   *           TabbedTextOutA    (USER32.@)
   *
   * See TabbedTextOutW.
   */
  LONG WINAPI TabbedTextOutA( HDC hdc, INT x, INT y, LPCSTR lpstr, INT count,
                              INT cTabStops, const INT *lpTabPos, INT nTabOrg )
  {
      LONG ret;
      DWORD len = MultiByteToWideChar( CP_ACP, 0, lpstr, count, NULL, 0 );
      LPWSTR strW = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
      if (!strW) return 0;
      MultiByteToWideChar( CP_ACP, 0, lpstr, count, strW, len );
      ret = TabbedTextOutW( hdc, x, y, strW, len, cTabStops, lpTabPos, nTabOrg );
      HeapFree( GetProcessHeap(), 0, strW );
      return ret;
  }
  
  
  /***********************************************************************
   *           TabbedTextOutW    (USER32.@)
   *
   * Draws tabbed text aligned using the specified tab stops.
   *
   * PARAMS
   *  hdc       [I] Handle to device context to draw to.
   *  x         [I] X co-ordinate to start drawing the text at in logical units.
   *  y         [I] Y co-ordinate to start drawing the text at in logical units.
   *  str       [I] Pointer to the characters to draw.
   *  count     [I] Number of WCHARs pointed to by str.
   *  cTabStops [I] Number of tab stops pointed to by lpTabPos.
   *  lpTabPos  [I] Tab stops in logical units. Should be sorted in ascending order.
   *  nTabOrg   [I] Starting position to expand tabs from in logical units.
   *
   * RETURNS
   *  The dimensions of the string drawn. The height is in the high-order word
   *  and the width is in the low-order word.
   *
   * NOTES
   *  The tabs stops can be negative, in which case the text is right aligned to
   *  that tab stop and, despite what MSDN says, this is supported on
   *  Windows XP SP2.
   *
   * BUGS
   *  MSDN says that the TA_UPDATECP from GetTextAlign causes this function to
   *  ignore the x and y co-ordinates, but this is unimplemented at the moment.
   */
  LONG WINAPI TabbedTextOutW( HDC hdc, INT x, INT y, LPCWSTR str, INT count,
                              INT cTabStops, const INT *lpTabPos, INT nTabOrg )
  {
      TRACE("%p %d,%d %s %d\n", hdc, x, y, debugstr_wn(str,count), count );
      return TEXT_TabbedTextOut( hdc, x, y, str, count, cTabStops, lpTabPos, nTabOrg, TRUE );
  }
  
  
  /***********************************************************************
   *           GetTabbedTextExtentA    (USER32.@)
   */
  DWORD WINAPI GetTabbedTextExtentA( HDC hdc, LPCSTR lpstr, INT count,
                                     INT cTabStops, const INT *lpTabPos )
  {
      LONG ret;
      DWORD len = MultiByteToWideChar( CP_ACP, 0, lpstr, count, NULL, 0 );
      LPWSTR strW = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
      if (!strW) return 0;
      MultiByteToWideChar( CP_ACP, 0, lpstr, count, strW, len );
      ret = GetTabbedTextExtentW( hdc, strW, len, cTabStops, lpTabPos );
      HeapFree( GetProcessHeap(), 0, strW );
      return ret;
  }
  
  
  /***********************************************************************
   *           GetTabbedTextExtentW    (USER32.@)
   */
  DWORD WINAPI GetTabbedTextExtentW( HDC hdc, LPCWSTR lpstr, INT count,
                                     INT cTabStops, const INT *lpTabPos )
  {
      TRACE("%p %s %d\n", hdc, debugstr_wn(lpstr,count), count );
      return TEXT_TabbedTextOut( hdc, 0, 0, lpstr, count, cTabStops, lpTabPos, 0, FALSE );
  }
  