dlls/riched20/para.c

   1 /*
   2  * RichEdit - functions working on paragraphs of text (diParagraph).
   3  *
   4  * Copyright 2004 by Krzysztof Foltman
   5  * Copyright 2006 by Phil Krylov
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "editor.h"
  23
  24 WINE_DEFAULT_DEBUG_CHANNEL(richedit);
  25
  26 static const WCHAR wszParagraphSign[] = {0xB6, 0};
  27
  28 void ME_MakeFirstParagraph(ME_TextEditor *editor)
  29 {
  30   ME_Context c;
  31   PARAFORMAT2 fmt;
  32   CHARFORMAT2W cf;
  33   LOGFONTW lf;
  34   HFONT hf;
  35   ME_TextBuffer *text = editor->pBuffer;
  36   ME_DisplayItem *para = ME_MakeDI(diParagraph);
  37   ME_DisplayItem *run;
  38   ME_Style *style;
  39
  40   ME_InitContext(&c, editor, GetDC(editor->hWnd));
  41
  42   hf = (HFONT)GetStockObject(SYSTEM_FONT);
  43   assert(hf);
  44   GetObjectW(hf, sizeof(LOGFONTW), &lf);
  45   ZeroMemory(&cf, sizeof(cf));
  46   cf.cbSize = sizeof(cf);
  47   cf.dwMask = CFM_BACKCOLOR|CFM_COLOR|CFM_FACE|CFM_SIZE|CFM_CHARSET;
  48   cf.dwMask |= CFM_ALLCAPS|CFM_BOLD|CFM_DISABLED|CFM_EMBOSS|CFM_HIDDEN;
  49   cf.dwMask |= CFM_IMPRINT|CFM_ITALIC|CFM_LINK|CFM_OUTLINE|CFM_PROTECTED;
  50   cf.dwMask |= CFM_REVISED|CFM_SHADOW|CFM_SMALLCAPS|CFM_STRIKEOUT;
  51   cf.dwMask |= CFM_SUBSCRIPT|CFM_UNDERLINETYPE|CFM_WEIGHT;
  52
  53   cf.dwEffects = CFE_AUTOCOLOR | CFE_AUTOBACKCOLOR;
  54   lstrcpyW(cf.szFaceName, lf.lfFaceName);
  55   cf.yHeight = ME_twips2pointsY(&c, lf.lfHeight);
  56   if (lf.lfWeight > FW_NORMAL) cf.dwEffects |= CFE_BOLD;
  57   cf.wWeight = lf.lfWeight;
  58   if (lf.lfItalic) cf.dwEffects |= CFE_ITALIC;
  59   cf.bUnderlineType = (lf.lfUnderline) ? CFU_CF1UNDERLINE : CFU_UNDERLINENONE;
  60   if (lf.lfStrikeOut) cf.dwEffects |= CFE_STRIKEOUT;
  61   cf.bPitchAndFamily = lf.lfPitchAndFamily;
  62   cf.bCharSet = lf.lfCharSet;
  63
  64   ZeroMemory(&fmt, sizeof(fmt));
  65   fmt.cbSize = sizeof(fmt);
  66   fmt.dwMask = PFM_ALIGNMENT | PFM_OFFSET | PFM_STARTINDENT | PFM_RIGHTINDENT | PFM_TABSTOPS;
  67   fmt.wAlignment = PFA_LEFT;
  68
  69   *para->member.para.pFmt = fmt;
  70
  71   style = ME_MakeStyle(&cf);
  72   text->pDefaultStyle = style;
  73
  74   run = ME_MakeRun(style, ME_MakeString(wszParagraphSign), MERF_ENDPARA);
  75   run->member.run.nCharOfs = 0;
  76   run->member.run.nCR = 1;
  77   run->member.run.nLF = (editor->bEmulateVersion10) ? 1 : 0;
  78
  79   ME_InsertBefore(text->pLast, para);
  80   ME_InsertBefore(text->pLast, run);
  81   para->member.para.prev_para = text->pFirst;
  82   para->member.para.next_para = text->pLast;
  83   text->pFirst->member.para.next_para = para;
  84   text->pLast->member.para.prev_para = para;
  85
  86   text->pLast->member.para.nCharOfs = 1;
  87
  88   ME_DestroyContext(&c, editor->hWnd);
  89 }
  90
  91 void ME_MarkAllForWrapping(ME_TextEditor *editor)
  92 {
  93   ME_MarkForWrapping(editor, editor->pBuffer->pFirst->member.para.next_para, editor->pBuffer->pLast);
  94 }
  95
  96 void ME_MarkForWrapping(ME_TextEditor *editor, ME_DisplayItem *first, const ME_DisplayItem *last)
  97 {
  98   while(first != last)
  99   {
 100     first->member.para.nFlags |= MEPF_REWRAP;
 101     first = first->member.para.next_para;
 102   }
 103 }
 104
 105 void ME_MarkForPainting(ME_TextEditor *editor, ME_DisplayItem *first, const ME_DisplayItem *last)
 106 {
 107   while(first != last)
 108   {
 109     first->member.para.nFlags |= MEPF_REPAINT;
 110     first = first->member.para.next_para;
 111   }
 112 }
 113
 114 /* split paragraph at the beginning of the run */
 115 ME_DisplayItem *ME_SplitParagraph(ME_TextEditor *editor, ME_DisplayItem *run, ME_Style *style, int numCR, int numLF)
 116 {
 117   ME_DisplayItem *next_para = NULL;
 118   ME_DisplayItem *run_para = NULL;
 119   ME_DisplayItem *new_para = ME_MakeDI(diParagraph);
 120   ME_DisplayItem *end_run = ME_MakeRun(style,ME_MakeString(wszParagraphSign), MERF_ENDPARA);
 121   ME_UndoItem *undo = NULL;
 122   int ofs;
 123   ME_DisplayItem *pp;
 124   int end_len = numCR + numLF;
 125
 126   assert(run->type == diRun);
 127
 128   end_run->member.run.nCR = numCR;
 129   end_run->member.run.nLF = numLF;
 130   run_para = ME_GetParagraph(run);
 131   assert(run_para->member.para.pFmt->cbSize == sizeof(PARAFORMAT2));
 132
 133   ofs = end_run->member.run.nCharOfs = run->member.run.nCharOfs;
 134   next_para = run_para->member.para.next_para;
 135   assert(next_para == ME_FindItemFwd(run_para, diParagraphOrEnd));
 136
 137   undo = ME_AddUndoItem(editor, diUndoJoinParagraphs, NULL);
 138   if (undo)
 139     undo->nStart = run_para->member.para.nCharOfs + ofs;
 140
 141   /* the new paragraph will have a different starting offset, so let's update its runs */
 142   pp = run;
 143   while(pp->type == diRun) {
 144     pp->member.run.nCharOfs -= ofs;
 145     pp = ME_FindItemFwd(pp, diRunOrParagraphOrEnd);
 146   }
 147   new_para->member.para.nCharOfs = ME_GetParagraph(run)->member.para.nCharOfs+ofs;
 148   new_para->member.para.nCharOfs += end_len;
 149
 150   new_para->member.para.nFlags = MEPF_REWRAP; /* FIXME copy flags (if applicable) */
 151   /* FIXME initialize format style and call ME_SetParaFormat blah blah */
 152   *new_para->member.para.pFmt = *run_para->member.para.pFmt;
 153
 154   new_para->member.para.bTable = run_para->member.para.bTable;
 155
 156   /* Inherit previous cell definitions if any */
 157   new_para->member.para.pCells = NULL;
 158   if (run_para->member.para.pCells)
 159   {
 160     ME_TableCell *pCell, *pNewCell;
 161
 162     for (pCell = run_para->member.para.pCells; pCell; pCell = pCell->next)
 163     {
 164       pNewCell = ALLOC_OBJ(ME_TableCell);
 165       pNewCell->nRightBoundary = pCell->nRightBoundary;
 166       pNewCell->next = NULL;
 167       if (new_para->member.para.pCells)
 168         new_para->member.para.pLastCell->next = pNewCell;
 169       else
 170         new_para->member.para.pCells = pNewCell;
 171       new_para->member.para.pLastCell = pNewCell;
 172     }
 173   }
 174
 175   /* fix paragraph properties. FIXME only needed when called from RTF reader */
 176   if (run_para->member.para.pCells && !run_para->member.para.bTable)
 177   {
 178     /* Paragraph does not have an \intbl keyword, so any table definition
 179      * stored is invalid */
 180     ME_DestroyTableCellList(run_para);
 181   }
 182
 183   /* insert paragraph into paragraph double linked list */
 184   new_para->member.para.prev_para = run_para;
 185   new_para->member.para.next_para = next_para;
 186   run_para->member.para.next_para = new_para;
 187   next_para->member.para.prev_para = new_para;
 188
 189   /* insert end run of the old paragraph, and new paragraph, into DI double linked list */
 190   ME_InsertBefore(run, new_para);
 191   ME_InsertBefore(new_para, end_run);
 192
 193   /* force rewrap of the */
 194   run_para->member.para.prev_para->member.para.nFlags |= MEPF_REWRAP;
 195   new_para->member.para.prev_para->member.para.nFlags |= MEPF_REWRAP;
 196
 197   /* we've added the end run, so we need to modify nCharOfs in the next paragraphs */
 198   ME_PropagateCharOffset(next_para, end_len);
 199   editor->nParagraphs++;
 200
 201   return new_para;
 202 }
 203
 204 /* join tp with tp->member.para.next_para, keeping tp's style; this
 205  * is consistent with the original */
 206 ME_DisplayItem *ME_JoinParagraphs(ME_TextEditor *editor, ME_DisplayItem *tp)
 207 {
 208   ME_DisplayItem *pNext, *pFirstRunInNext, *pRun, *pTmp;
 209   int i, shift;
 210   ME_UndoItem *undo = NULL;
 211   int end_len;
 212
 213   assert(tp->type == diParagraph);
 214   assert(tp->member.para.next_para);
 215   assert(tp->member.para.next_para->type == diParagraph);
 216
 217   pNext = tp->member.para.next_para;
 218
 219   /* Need to locate end-of-paragraph run here, in order to know end_len */
 220   pRun = ME_FindItemBack(pNext, diRunOrParagraph);
 221
 222   assert(pRun);
 223   assert(pRun->type == diRun);
 224   assert(pRun->member.run.nFlags & MERF_ENDPARA);
 225
 226   end_len = pRun->member.run.nCR + pRun->member.run.nLF;
 227
 228   {
 229     /* null char format operation to store the original char format for the ENDPARA run */
 230     CHARFORMAT2W fmt;
 231     ME_InitCharFormat2W(&fmt);
 232     ME_SetCharFormat(editor, pNext->member.para.nCharOfs - end_len, end_len, &fmt);
 233   }
 234   undo = ME_AddUndoItem(editor, diUndoSplitParagraph, NULL);
 235   if (undo)
 236   {
 237     undo->nStart = pNext->member.para.nCharOfs - end_len;
 238     undo->nCR = pRun->member.run.nCR;
 239     undo->nLF = pRun->member.run.nLF;
 240     assert(pNext->member.para.pFmt->cbSize == sizeof(PARAFORMAT2));
 241     *undo->di.member.para.pFmt = *pNext->member.para.pFmt;
 242   }
 243
 244   shift = pNext->member.para.nCharOfs - tp->member.para.nCharOfs - end_len;
 245
 246   pFirstRunInNext = ME_FindItemFwd(pNext, diRunOrParagraph);
 247
 248   assert(pFirstRunInNext->type == diRun);
 249
 250   /* if some cursor points at end of paragraph, make it point to the first
 251      run of the next joined paragraph */
 252   for (i=0; i<editor->nCursors; i++) {
 253     if (editor->pCursors[i].pRun == pRun) {
 254       editor->pCursors[i].pRun = pFirstRunInNext;
 255       editor->pCursors[i].nOffset = 0;
 256     }
 257   }
 258
 259   pTmp = pNext;
 260   do {
 261     pTmp = ME_FindItemFwd(pTmp, diRunOrParagraphOrEnd);
 262     if (pTmp->type != diRun)
 263       break;
 264     TRACE("shifting \"%s\" by %d (previous %d)\n", debugstr_w(pTmp->member.run.strText->szData), shift, pTmp->member.run.nCharOfs);
 265     pTmp->member.run.nCharOfs += shift;
 266   } while(1);
 267
 268   ME_Remove(pRun);
 269   ME_DestroyDisplayItem(pRun);
 270
 271   if (editor->pLastSelStartPara == pNext)
 272     editor->pLastSelStartPara = tp;
 273   if (editor->pLastSelEndPara == pNext)
 274     editor->pLastSelEndPara = tp;
 275
 276   tp->member.para.next_para = pNext->member.para.next_para;
 277   pNext->member.para.next_para->member.para.prev_para = tp;
 278   ME_Remove(pNext);
 279   ME_DestroyDisplayItem(pNext);
 280
 281   ME_PropagateCharOffset(tp->member.para.next_para, -end_len);
 282
 283   ME_CheckCharOffsets(editor);
 284
 285   editor->nParagraphs--;
 286   tp->member.para.nFlags |= MEPF_REWRAP;
 287   return tp;
 288 }
 289
 290 ME_DisplayItem *ME_GetParagraph(ME_DisplayItem *item) {
 291   return ME_FindItemBackOrHere(item, diParagraph);
 292 }
 293
 294 void ME_DumpParaStyleToBuf(const PARAFORMAT2 *pFmt, char buf[2048])
 295 {
 296   char *p;
 297   p = buf;
 298
 299 #define DUMP(mask, name, fmt, field) \
 300   if (pFmt->dwMask & (mask)) p += sprintf(p, "%-22s" fmt "\n", name, pFmt->field); \
 301   else p += sprintf(p, "%-22sN/A\n", name);
 302
 303 /* we take for granted that PFE_xxx is the hiword of the corresponding PFM_xxx */
 304 #define DUMP_EFFECT(mask, name) \
 305   p += sprintf(p, "%-22s%s\n", name, (pFmt->dwMask & (mask)) ? ((pFmt->wEffects & ((mask) >> 8)) ? "yes" : "no") : "N/A");
 306
 307   DUMP(PFM_NUMBERING,      "Numbering:",         "%u", wNumbering);
 308   DUMP_EFFECT(PFM_DONOTHYPHEN,     "Disable auto-hyphen:");
 309   DUMP_EFFECT(PFM_KEEP,            "No page break in para:");
 310   DUMP_EFFECT(PFM_KEEPNEXT,        "No page break in para & next:");
 311   DUMP_EFFECT(PFM_NOLINENUMBER,    "No line number:");
 312   DUMP_EFFECT(PFM_NOWIDOWCONTROL,  "No widow & orphan:");
 313   DUMP_EFFECT(PFM_PAGEBREAKBEFORE, "Page break before:");
 314   DUMP_EFFECT(PFM_RTLPARA,         "RTL para:");
 315   DUMP_EFFECT(PFM_SIDEBYSIDE,      "Side by side:");
 316   DUMP_EFFECT(PFM_TABLE,           "Table:");
 317   DUMP(PFM_OFFSETINDENT,   "Offset indent:",     "%d", dxStartIndent);
 318   DUMP(PFM_STARTINDENT,    "Start indent:",      "%d", dxStartIndent);
 319   DUMP(PFM_RIGHTINDENT,    "Right indent:",      "%d", dxRightIndent);
 320   DUMP(PFM_OFFSET,         "Offset:",            "%d", dxOffset);
 321   if (pFmt->dwMask & PFM_ALIGNMENT) {
 322     switch (pFmt->wAlignment) {
 323     case PFA_LEFT   : p += sprintf(p, "Alignment:            left\n"); break;
 324     case PFA_RIGHT  : p += sprintf(p, "Alignment:            right\n"); break;
 325     case PFA_CENTER : p += sprintf(p, "Alignment:            center\n"); break;
 326     case PFA_JUSTIFY: p += sprintf(p, "Alignment:            justify\n"); break;
 327     default         : p += sprintf(p, "Alignment:            incorrect %d\n", pFmt->wAlignment); break;
 328     }
 329   }
 330   else p += sprintf(p, "Alignment:            N/A\n");
 331   DUMP(PFM_TABSTOPS,       "Tab Stops:",         "%d", cTabCount);
 332   if (pFmt->dwMask & PFM_TABSTOPS) {
 333     int i;
 334     p += sprintf(p, "\t");
 335     for (i = 0; i < pFmt->cTabCount; i++) p += sprintf(p, "%x ", pFmt->rgxTabs[i]);
 336     p += sprintf(p, "\n");
 337   }
 338   DUMP(PFM_SPACEBEFORE,    "Space Before:",      "%d", dySpaceBefore);
 339   DUMP(PFM_SPACEAFTER,     "Space After:",       "%d", dySpaceAfter);
 340   DUMP(PFM_LINESPACING,    "Line spacing:",      "%d", dyLineSpacing);
 341   DUMP(PFM_STYLE,          "Text style:",        "%d", sStyle);
 342   DUMP(PFM_LINESPACING,    "Line spacing rule:", "%u", bLineSpacingRule);
 343   /* bOutlineLevel should be 0 */
 344   DUMP(PFM_SHADING,        "Shading Weigth:",    "%u", wShadingWeight);
 345   DUMP(PFM_SHADING,        "Shading Style:",     "%u", wShadingStyle);
 346   DUMP(PFM_NUMBERINGSTART, "Numbering Start:",   "%u", wNumberingStart);
 347   DUMP(PFM_NUMBERINGSTYLE, "Numbering Style:",   "0x%x", wNumberingStyle);
 348   DUMP(PFM_NUMBERINGTAB,   "Numbering Tab:",     "%u", wNumberingStyle);
 349   DUMP(PFM_BORDER,         "Border Space:",      "%u", wBorderSpace);
 350   DUMP(PFM_BORDER,         "Border Width:",      "%u", wBorderWidth);
 351   DUMP(PFM_BORDER,         "Borders:",           "%u", wBorders);
 352
 353 #undef DUMP
 354 #undef DUMP_EFFECT
 355 }
 356
 357 void ME_SetParaFormat(ME_TextEditor *editor, ME_DisplayItem *para, const PARAFORMAT2 *pFmt)
 358 {
 359   PARAFORMAT2 copy;
 360   assert(sizeof(*para->member.para.pFmt) == sizeof(PARAFORMAT2));
 361   ME_AddUndoItem(editor, diUndoSetParagraphFormat, para);
 362
 363   copy = *para->member.para.pFmt;
 364
 365 #define COPY_FIELD(m, f) \
 366   if (pFmt->dwMask & (m)) {                     \
 367     para->member.para.pFmt->dwMask |= m;        \
 368     para->member.para.pFmt->f = pFmt->f;        \
 369   }
 370
 371   COPY_FIELD(PFM_NUMBERING, wNumbering);
 372 #define EFFECTS_MASK (PFM_RTLPARA|PFM_KEEP|PFM_KEEPNEXT|PFM_PAGEBREAKBEFORE| \
 373                       PFM_NOLINENUMBER|PFM_NOWIDOWCONTROL|PFM_DONOTHYPHEN|PFM_SIDEBYSIDE| \
 374                       PFM_TABLE)
 375   /* we take for granted that PFE_xxx is the hiword of the corresponding PFM_xxx */
 376   if (pFmt->dwMask & EFFECTS_MASK) {
 377     para->member.para.pFmt->dwMask &= ~(pFmt->dwMask & EFFECTS_MASK);
 378     para->member.para.pFmt->wEffects |= pFmt->wEffects & HIWORD(pFmt->dwMask);
 379   }
 380 #undef EFFECTS_MASK
 381
 382   COPY_FIELD(PFM_STARTINDENT, dxStartIndent);
 383   if (pFmt->dwMask & PFM_OFFSETINDENT)
 384     para->member.para.pFmt->dxStartIndent += pFmt->dxStartIndent;
 385   COPY_FIELD(PFM_RIGHTINDENT, dxRightIndent);
 386   COPY_FIELD(PFM_OFFSET, dxOffset);
 387   COPY_FIELD(PFM_ALIGNMENT, wAlignment);
 388
 389   if (pFmt->dwMask & PFM_TABSTOPS)
 390   {
 391     para->member.para.pFmt->cTabCount = pFmt->cTabCount;
 392     memcpy(para->member.para.pFmt->rgxTabs, pFmt->rgxTabs, pFmt->cTabCount*sizeof(LONG));
 393   }
 394   COPY_FIELD(PFM_SPACEBEFORE, dySpaceBefore);
 395   COPY_FIELD(PFM_SPACEAFTER, dySpaceAfter);
 396   COPY_FIELD(PFM_LINESPACING, dyLineSpacing);
 397   COPY_FIELD(PFM_STYLE, sStyle);
 398   COPY_FIELD(PFM_LINESPACING, bLineSpacingRule);
 399   COPY_FIELD(PFM_SHADING, wShadingWeight);
 400   COPY_FIELD(PFM_SHADING, wShadingStyle);
 401   COPY_FIELD(PFM_NUMBERINGSTART, wNumberingStart);
 402   COPY_FIELD(PFM_NUMBERINGSTYLE, wNumberingStyle);
 403   COPY_FIELD(PFM_NUMBERINGTAB, wNumberingTab);
 404   COPY_FIELD(PFM_BORDER, wBorderSpace);
 405   COPY_FIELD(PFM_BORDER, wBorderWidth);
 406   COPY_FIELD(PFM_BORDER, wBorders);
 407
 408   para->member.para.pFmt->dwMask |= pFmt->dwMask;
 409 #undef COPY_FIELD
 410
 411   if (memcmp(&copy, para->member.para.pFmt, sizeof(PARAFORMAT2)))
 412     para->member.para.nFlags |= MEPF_REWRAP;
 413 }
 414
 415
 416 void
 417 ME_GetSelectionParas(ME_TextEditor *editor, ME_DisplayItem **para, ME_DisplayItem **para_end)
 418 {
 419   ME_Cursor *pEndCursor = &editor->pCursors[1];
 420
 421   *para = ME_GetParagraph(editor->pCursors[0].pRun);
 422   *para_end = ME_GetParagraph(editor->pCursors[1].pRun);
 423   if ((*para_end)->member.para.nCharOfs < (*para)->member.para.nCharOfs) {
 424     ME_DisplayItem *tmp = *para;
 425
 426     *para = *para_end;
 427     *para_end = tmp;
 428     pEndCursor = &editor->pCursors[0];
 429   }
 430
 431   /* selection consists of chars from nFrom up to nTo-1 */
 432   if ((*para_end)->member.para.nCharOfs > (*para)->member.para.nCharOfs) {
 433     if (!pEndCursor->nOffset) {
 434       *para_end = ME_GetParagraph(ME_FindItemBack(pEndCursor->pRun, diRun));
 435     }
 436   }
 437 }
 438
 439
 440 void ME_SetSelectionParaFormat(ME_TextEditor *editor, const PARAFORMAT2 *pFmt)
 441 {
 442   ME_DisplayItem *para, *para_end;
 443
 444   ME_GetSelectionParas(editor, &para, &para_end);
 445
 446   do {
 447     ME_SetParaFormat(editor, para, pFmt);
 448     if (para == para_end)
 449       break;
 450     para = para->member.para.next_para;
 451   } while(1);
 452 }
 453
 454 void ME_GetParaFormat(ME_TextEditor *editor, const ME_DisplayItem *para, PARAFORMAT2 *pFmt)
 455 {
 456   if (pFmt->cbSize >= sizeof(PARAFORMAT2))
 457   {
 458     *pFmt = *para->member.para.pFmt;
 459     return;
 460   }
 461   CopyMemory(pFmt, para->member.para.pFmt, pFmt->cbSize);
 462 }
 463
 464 void ME_GetSelectionParaFormat(ME_TextEditor *editor, PARAFORMAT2 *pFmt)
 465 {
 466   ME_DisplayItem *para, *para_end;
 467   PARAFORMAT2 tmp;
 468
 469   ME_GetSelectionParas(editor, &para, &para_end);
 470
 471   ME_GetParaFormat(editor, para, pFmt);
 472   if (para == para_end) return;
 473
 474   do {
 475     ZeroMemory(&tmp, sizeof(tmp));
 476     tmp.cbSize = sizeof(tmp);
 477     ME_GetParaFormat(editor, para, &tmp);
 478
 479 #define CHECK_FIELD(m, f) \
 480     if (pFmt->f != tmp.f) pFmt->dwMask &= ~(m);
 481
 482     CHECK_FIELD(PFM_NUMBERING, wNumbering);
 483     /* para->member.para.pFmt->wEffects = pFmt->wEffects; */
 484     assert(tmp.dwMask & PFM_ALIGNMENT);
 485     CHECK_FIELD(PFM_NUMBERING, wNumbering);
 486     assert(tmp.dwMask & PFM_STARTINDENT);
 487     CHECK_FIELD(PFM_STARTINDENT, dxStartIndent);
 488     assert(tmp.dwMask & PFM_RIGHTINDENT);
 489     CHECK_FIELD(PFM_RIGHTINDENT, dxRightIndent);
 490     assert(tmp.dwMask & PFM_OFFSET);
 491     CHECK_FIELD(PFM_OFFSET, dxOffset);
 492     CHECK_FIELD(PFM_ALIGNMENT, wAlignment);
 493
 494     assert(tmp.dwMask & PFM_TABSTOPS);
 495     if (pFmt->dwMask & PFM_TABSTOPS) {
 496       if (pFmt->cTabCount != tmp.cTabCount ||
 497           memcmp(pFmt->rgxTabs, tmp.rgxTabs, tmp.cTabCount*sizeof(int)))
 498         pFmt->dwMask &= ~PFM_TABSTOPS;
 499     }
 500
 501     CHECK_FIELD(PFM_SPACEBEFORE, dySpaceBefore);
 502     CHECK_FIELD(PFM_SPACEAFTER, dySpaceAfter);
 503     CHECK_FIELD(PFM_LINESPACING, dyLineSpacing);
 504     CHECK_FIELD(PFM_STYLE, sStyle);
 505     CHECK_FIELD(PFM_SPACEAFTER, bLineSpacingRule);
 506     CHECK_FIELD(PFM_SHADING, wShadingWeight);
 507     CHECK_FIELD(PFM_SHADING, wShadingStyle);
 508     CHECK_FIELD(PFM_NUMBERINGSTART, wNumberingStart);
 509     CHECK_FIELD(PFM_NUMBERINGSTYLE, wNumberingStyle);
 510     CHECK_FIELD(PFM_NUMBERINGTAB, wNumberingTab);
 511     CHECK_FIELD(PFM_BORDER, wBorderSpace);
 512     CHECK_FIELD(PFM_BORDER, wBorderWidth);
 513     CHECK_FIELD(PFM_BORDER, wBorders);
 514
 515 #undef CHECK_FIELD
 516
 517     if (para == para_end)
 518       return;
 519     para = para->member.para.next_para;
 520   } while(1);
 521 }