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   /* Convert system font height from logical units to twips for cf.yHeight */
  56   cf.yHeight = (lf.lfHeight * 72 * 1440) / (c.dpi.cy * c.dpi.cy);
  57   if (lf.lfWeight > FW_NORMAL) cf.dwEffects |= CFE_BOLD;
  58   cf.wWeight = lf.lfWeight;
  59   if (lf.lfItalic) cf.dwEffects |= CFE_ITALIC;
  60   cf.bUnderlineType = (lf.lfUnderline) ? CFU_CF1UNDERLINE : CFU_UNDERLINENONE;
  61   if (lf.lfStrikeOut) cf.dwEffects |= CFE_STRIKEOUT;
  62   cf.bPitchAndFamily = lf.lfPitchAndFamily;
  63   cf.bCharSet = lf.lfCharSet;
  64
  65   ZeroMemory(&fmt, sizeof(fmt));
  66   fmt.cbSize = sizeof(fmt);
  67   fmt.dwMask = PFM_ALIGNMENT | PFM_OFFSET | PFM_STARTINDENT | PFM_RIGHTINDENT | PFM_TABSTOPS;
  68   fmt.wAlignment = PFA_LEFT;
  69
  70   *para->member.para.pFmt = fmt;
  71
  72   style = ME_MakeStyle(&cf);
  73   text->pDefaultStyle = style;
  74
  75   run = ME_MakeRun(style, ME_MakeString(wszParagraphSign), MERF_ENDPARA);
  76   run->member.run.nCharOfs = 0;
  77   run->member.run.nCR = 1;
  78   run->member.run.nLF = (editor->bEmulateVersion10) ? 1 : 0;
  79
  80   ME_InsertBefore(text->pLast, para);
  81   ME_InsertBefore(text->pLast, run);
  82   para->member.para.prev_para = text->pFirst;
  83   para->member.para.next_para = text->pLast;
  84   text->pFirst->member.para.next_para = para;
  85   text->pLast->member.para.prev_para = para;
  86
  87   text->pLast->member.para.nCharOfs = 1;
  88
  89   ME_DestroyContext(&c, editor->hWnd);
  90 }
  91
  92 void ME_MarkAllForWrapping(ME_TextEditor *editor)
  93 {
  94   ME_MarkForWrapping(editor, editor->pBuffer->pFirst->member.para.next_para, editor->pBuffer->pLast);
  95 }
  96
  97 void ME_MarkForWrapping(ME_TextEditor *editor, ME_DisplayItem *first, const ME_DisplayItem *last)
  98 {
  99   while(first != last)
 100   {
 101     first->member.para.nFlags |= MEPF_REWRAP;
 102     first = first->member.para.next_para;
 103   }
 104 }
 105
 106 void ME_MarkForPainting(ME_TextEditor *editor, ME_DisplayItem *first, const ME_DisplayItem *last)
 107 {
 108   while(first != last && first)
 109   {
 110     first->member.para.nFlags |= MEPF_REPAINT;
 111     first = first->member.para.next_para;
 112   }
 113 }
 114
 115 /* split paragraph at the beginning of the run */
 116 ME_DisplayItem *ME_SplitParagraph(ME_TextEditor *editor, ME_DisplayItem *run, ME_Style *style, int numCR, int numLF)
 117 {
 118   ME_DisplayItem *next_para = NULL;
 119   ME_DisplayItem *run_para = NULL;
 120   ME_DisplayItem *new_para = ME_MakeDI(diParagraph);
 121   ME_DisplayItem *end_run = ME_MakeRun(style,ME_MakeString(wszParagraphSign), MERF_ENDPARA);
 122   ME_UndoItem *undo = NULL;
 123   int ofs;
 124   ME_DisplayItem *pp;
 125   int end_len = numCR + numLF;
 126
 127   assert(run->type == diRun);
 128
 129   end_run->member.run.nCR = numCR;
 130   end_run->member.run.nLF = numLF;
 131   run_para = ME_GetParagraph(run);
 132   assert(run_para->member.para.pFmt->cbSize == sizeof(PARAFORMAT2));
 133
 134   ofs = end_run->member.run.nCharOfs = run->member.run.nCharOfs;
 135   next_para = run_para->member.para.next_para;
 136   assert(next_para == ME_FindItemFwd(run_para, diParagraphOrEnd));
 137
 138   undo = ME_AddUndoItem(editor, diUndoJoinParagraphs, NULL);
 139   if (undo)
 140     undo->nStart = run_para->member.para.nCharOfs + ofs;
 141
 142   /* the new paragraph will have a different starting offset, so let's update its runs */
 143   pp = run;
 144   while(pp->type == diRun) {
 145     pp->member.run.nCharOfs -= ofs;
 146     pp = ME_FindItemFwd(pp, diRunOrParagraphOrEnd);
 147   }
 148   new_para->member.para.nCharOfs = ME_GetParagraph(run)->member.para.nCharOfs+ofs;
 149   new_para->member.para.nCharOfs += end_len;
 150
 151   new_para->member.para.nFlags = MEPF_REWRAP; /* FIXME copy flags (if applicable) */
 152   /* FIXME initialize format style and call ME_SetParaFormat blah blah */
 153   *new_para->member.para.pFmt = *run_para->member.para.pFmt;
 154
 155   new_para->member.para.bTable = run_para->member.para.bTable;
 156
 157   /* Inherit previous cell definitions if any */
 158   new_para->member.para.pCells = NULL;
 159   if (run_para->member.para.pCells)
 160   {
 161     ME_TableCell *pCell, *pNewCell;
 162
 163     for (pCell = run_para->member.para.pCells; pCell; pCell = pCell->next)
 164     {
 165       pNewCell = ALLOC_OBJ(ME_TableCell);
 166       pNewCell->nRightBoundary = pCell->nRightBoundary;
 167       pNewCell->next = NULL;
 168       if (new_para->member.para.pCells)
 169         new_para->member.para.pLastCell->next = pNewCell;
 170       else
 171         new_para->member.para.pCells = pNewCell;
 172       new_para->member.para.pLastCell = pNewCell;
 173     }
 174   }
 175
 176   /* fix paragraph properties. FIXME only needed when called from RTF reader */
 177   if (run_para->member.para.pCells && !run_para->member.para.bTable)
 178   {
 179     /* Paragraph does not have an \intbl keyword, so any table definition
 180      * stored is invalid */
 181     ME_DestroyTableCellList(run_para);
 182   }
 183
 184   /* insert paragraph into paragraph double linked list */
 185   new_para->member.para.prev_para = run_para;
 186   new_para->member.para.next_para = next_para;
 187   run_para->member.para.next_para = new_para;
 188   next_para->member.para.prev_para = new_para;
 189
 190   /* insert end run of the old paragraph, and new paragraph, into DI double linked list */
 191   ME_InsertBefore(run, new_para);
 192   ME_InsertBefore(new_para, end_run);
 193
 194   /* force rewrap of the */
 195   run_para->member.para.prev_para->member.para.nFlags |= MEPF_REWRAP;
 196   new_para->member.para.prev_para->member.para.nFlags |= MEPF_REWRAP;
 197
 198   /* we've added the end run, so we need to modify nCharOfs in the next paragraphs */
 199   ME_PropagateCharOffset(next_para, end_len);
 200   editor->nParagraphs++;
 201
 202   return new_para;
 203 }
 204
 205 /* join tp with tp->member.para.next_para, keeping tp's style; this
 206  * is consistent with the original */
 207 ME_DisplayItem *ME_JoinParagraphs(ME_TextEditor *editor, ME_DisplayItem *tp)
 208 {
 209   ME_DisplayItem *pNext, *pFirstRunInNext, *pRun, *pTmp;
 210   int i, shift;
 211   ME_UndoItem *undo = NULL;
 212   int end_len;
 213
 214   assert(tp->type == diParagraph);
 215   assert(tp->member.para.next_para);
 216   assert(tp->member.para.next_para->type == diParagraph);
 217
 218   pNext = tp->member.para.next_para;
 219
 220   /* Need to locate end-of-paragraph run here, in order to know end_len */
 221   pRun = ME_FindItemBack(pNext, diRunOrParagraph);
 222
 223   assert(pRun);
 224   assert(pRun->type == diRun);
 225   assert(pRun->member.run.nFlags & MERF_ENDPARA);
 226
 227   end_len = pRun->member.run.nCR + pRun->member.run.nLF;
 228
 229   {
 230     /* null char format operation to store the original char format for the ENDPARA run */
 231     CHARFORMAT2W fmt;
 232     ME_InitCharFormat2W(&fmt);
 233     ME_SetCharFormat(editor, pNext->member.para.nCharOfs - end_len, end_len, &fmt);
 234   }
 235   undo = ME_AddUndoItem(editor, diUndoSplitParagraph, NULL);
 236   if (undo)
 237   {
 238     undo->nStart = pNext->member.para.nCharOfs - end_len;
 239     undo->nCR = pRun->member.run.nCR;
 240     undo->nLF = pRun->member.run.nLF;
 241     assert(pNext->member.para.pFmt->cbSize == sizeof(PARAFORMAT2));
 242     *undo->di.member.para.pFmt = *pNext->member.para.pFmt;
 243   }
 244
 245   shift = pNext->member.para.nCharOfs - tp->member.para.nCharOfs - end_len;
 246
 247   pFirstRunInNext = ME_FindItemFwd(pNext, diRunOrParagraph);
 248
 249   assert(pFirstRunInNext->type == diRun);
 250
 251   /* if some cursor points at end of paragraph, make it point to the first
 252      run of the next joined paragraph */
 253   for (i=0; i<editor->nCursors; i++) {
 254     if (editor->pCursors[i].pRun == pRun) {
 255       editor->pCursors[i].pRun = pFirstRunInNext;
 256       editor->pCursors[i].nOffset = 0;
 257     }
 258   }
 259
 260   pTmp = pNext;
 261   do {
 262     pTmp = ME_FindItemFwd(pTmp, diRunOrParagraphOrEnd);
 263     if (pTmp->type != diRun)
 264       break;
 265     TRACE("shifting \"%s\" by %d (previous %d)\n", debugstr_w(pTmp->member.run.strText->szData), shift, pTmp->member.run.nCharOfs);
 266     pTmp->member.run.nCharOfs += shift;
 267   } while(1);
 268
 269   ME_Remove(pRun);
 270   ME_DestroyDisplayItem(pRun);
 271
 272   if (editor->pLastSelStartPara == pNext)
 273     editor->pLastSelStartPara = tp;
 274   if (editor->pLastSelEndPara == pNext)
 275     editor->pLastSelEndPara = tp;
 276
 277   tp->member.para.next_para = pNext->member.para.next_para;
 278   pNext->member.para.next_para->member.para.prev_para = tp;
 279   ME_Remove(pNext);
 280   ME_DestroyDisplayItem(pNext);
 281
 282   ME_PropagateCharOffset(tp->member.para.next_para, -end_len);
 283
 284   ME_CheckCharOffsets(editor);
 285
 286   editor->nParagraphs--;
 287   tp->member.para.nFlags |= MEPF_REWRAP;
 288   return tp;
 289 }
 290
 291 ME_DisplayItem *ME_GetParagraph(ME_DisplayItem *item) {
 292   return ME_FindItemBackOrHere(item, diParagraph);
 293 }
 294
 295 void ME_DumpParaStyleToBuf(const PARAFORMAT2 *pFmt, char buf[2048])
 296 {
 297   char *p;
 298   p = buf;
 299
 300 #define DUMP(mask, name, fmt, field) \
 301   if (pFmt->dwMask & (mask)) p += sprintf(p, "%-22s" fmt "\n", name, pFmt->field); \
 302   else p += sprintf(p, "%-22sN/A\n", name);
 303
 304 /* we take for granted that PFE_xxx is the hiword of the corresponding PFM_xxx */
 305 #define DUMP_EFFECT(mask, name) \
 306   p += sprintf(p, "%-22s%s\n", name, (pFmt->dwMask & (mask)) ? ((pFmt->wEffects & ((mask) >> 8)) ? "yes" : "no") : "N/A");
 307
 308   DUMP(PFM_NUMBERING,      "Numbering:",         "%u", wNumbering);
 309   DUMP_EFFECT(PFM_DONOTHYPHEN,     "Disable auto-hyphen:");
 310   DUMP_EFFECT(PFM_KEEP,            "No page break in para:");
 311   DUMP_EFFECT(PFM_KEEPNEXT,        "No page break in para & next:");
 312   DUMP_EFFECT(PFM_NOLINENUMBER,    "No line number:");
 313   DUMP_EFFECT(PFM_NOWIDOWCONTROL,  "No widow & orphan:");
 314   DUMP_EFFECT(PFM_PAGEBREAKBEFORE, "Page break before:");
 315   DUMP_EFFECT(PFM_RTLPARA,         "RTL para:");
 316   DUMP_EFFECT(PFM_SIDEBYSIDE,      "Side by side:");
 317   DUMP_EFFECT(PFM_TABLE,           "Table:");
 318   DUMP(PFM_OFFSETINDENT,   "Offset indent:",     "%d", dxStartIndent);
 319   DUMP(PFM_STARTINDENT,    "Start indent:",      "%d", dxStartIndent);
 320   DUMP(PFM_RIGHTINDENT,    "Right indent:",      "%d", dxRightIndent);
 321   DUMP(PFM_OFFSET,         "Offset:",            "%d", dxOffset);
 322   if (pFmt->dwMask & PFM_ALIGNMENT) {
 323     switch (pFmt->wAlignment) {
 324     case PFA_LEFT   : p += sprintf(p, "Alignment:            left\n"); break;
 325     case PFA_RIGHT  : p += sprintf(p, "Alignment:            right\n"); break;
 326     case PFA_CENTER : p += sprintf(p, "Alignment:            center\n"); break;
 327     case PFA_JUSTIFY: p += sprintf(p, "Alignment:            justify\n"); break;
 328     default         : p += sprintf(p, "Alignment:            incorrect %d\n", pFmt->wAlignment); break;
 329     }
 330   }
 331   else p += sprintf(p, "Alignment:            N/A\n");
 332   DUMP(PFM_TABSTOPS,       "Tab Stops:",         "%d", cTabCount);
 333   if (pFmt->dwMask & PFM_TABSTOPS) {
 334     int i;
 335     p += sprintf(p, "\t");
 336     for (i = 0; i < pFmt->cTabCount; i++) p += sprintf(p, "%x ", pFmt->rgxTabs[i]);
 337     p += sprintf(p, "\n");
 338   }
 339   DUMP(PFM_SPACEBEFORE,    "Space Before:",      "%d", dySpaceBefore);
 340   DUMP(PFM_SPACEAFTER,     "Space After:",       "%d", dySpaceAfter);
 341   DUMP(PFM_LINESPACING,    "Line spacing:",      "%d", dyLineSpacing);
 342   DUMP(PFM_STYLE,          "Text style:",        "%d", sStyle);
 343   DUMP(PFM_LINESPACING,    "Line spacing rule:", "%u", bLineSpacingRule);
 344   /* bOutlineLevel should be 0 */
 345   DUMP(PFM_SHADING,        "Shading Weigth:",    "%u", wShadingWeight);
 346   DUMP(PFM_SHADING,        "Shading Style:",     "%u", wShadingStyle);
 347   DUMP(PFM_NUMBERINGSTART, "Numbering Start:",   "%u", wNumberingStart);
 348   DUMP(PFM_NUMBERINGSTYLE, "Numbering Style:",   "0x%x", wNumberingStyle);
 349   DUMP(PFM_NUMBERINGTAB,   "Numbering Tab:",     "%u", wNumberingStyle);
 350   DUMP(PFM_BORDER,         "Border Space:",      "%u", wBorderSpace);
 351   DUMP(PFM_BORDER,         "Border Width:",      "%u", wBorderWidth);
 352   DUMP(PFM_BORDER,         "Borders:",           "%u", wBorders);
 353
 354 #undef DUMP
 355 #undef DUMP_EFFECT
 356 }
 357
 358 void ME_SetParaFormat(ME_TextEditor *editor, ME_DisplayItem *para, const PARAFORMAT2 *pFmt)
 359 {
 360   PARAFORMAT2 copy;
 361   assert(sizeof(*para->member.para.pFmt) == sizeof(PARAFORMAT2));
 362   ME_AddUndoItem(editor, diUndoSetParagraphFormat, para);
 363
 364   copy = *para->member.para.pFmt;
 365
 366 #define COPY_FIELD(m, f) \
 367   if (pFmt->dwMask & (m)) {                     \
 368     para->member.para.pFmt->dwMask |= m;        \
 369     para->member.para.pFmt->f = pFmt->f;        \
 370   }
 371
 372   COPY_FIELD(PFM_NUMBERING, wNumbering);
 373 #define EFFECTS_MASK (PFM_RTLPARA|PFM_KEEP|PFM_KEEPNEXT|PFM_PAGEBREAKBEFORE| \
 374                       PFM_NOLINENUMBER|PFM_NOWIDOWCONTROL|PFM_DONOTHYPHEN|PFM_SIDEBYSIDE| \
 375                       PFM_TABLE)
 376   /* we take for granted that PFE_xxx is the hiword of the corresponding PFM_xxx */
 377   if (pFmt->dwMask & EFFECTS_MASK) {
 378     para->member.para.pFmt->dwMask &= ~(pFmt->dwMask & EFFECTS_MASK);
 379     para->member.para.pFmt->wEffects |= pFmt->wEffects & HIWORD(pFmt->dwMask);
 380   }
 381 #undef EFFECTS_MASK
 382
 383   COPY_FIELD(PFM_STARTINDENT, dxStartIndent);
 384   if (pFmt->dwMask & PFM_OFFSETINDENT)
 385     para->member.para.pFmt->dxStartIndent += pFmt->dxStartIndent;
 386   COPY_FIELD(PFM_RIGHTINDENT, dxRightIndent);
 387   COPY_FIELD(PFM_OFFSET, dxOffset);
 388   COPY_FIELD(PFM_ALIGNMENT, wAlignment);
 389
 390   if (pFmt->dwMask & PFM_TABSTOPS)
 391   {
 392     para->member.para.pFmt->cTabCount = pFmt->cTabCount;
 393     memcpy(para->member.para.pFmt->rgxTabs, pFmt->rgxTabs, pFmt->cTabCount*sizeof(LONG));
 394   }
 395   COPY_FIELD(PFM_SPACEBEFORE, dySpaceBefore);
 396   COPY_FIELD(PFM_SPACEAFTER, dySpaceAfter);
 397   COPY_FIELD(PFM_LINESPACING, dyLineSpacing);
 398   COPY_FIELD(PFM_STYLE, sStyle);
 399   COPY_FIELD(PFM_LINESPACING, bLineSpacingRule);
 400   COPY_FIELD(PFM_SHADING, wShadingWeight);
 401   COPY_FIELD(PFM_SHADING, wShadingStyle);
 402   COPY_FIELD(PFM_NUMBERINGSTART, wNumberingStart);
 403   COPY_FIELD(PFM_NUMBERINGSTYLE, wNumberingStyle);
 404   COPY_FIELD(PFM_NUMBERINGTAB, wNumberingTab);
 405   COPY_FIELD(PFM_BORDER, wBorderSpace);
 406   COPY_FIELD(PFM_BORDER, wBorderWidth);
 407   COPY_FIELD(PFM_BORDER, wBorders);
 408
 409   para->member.para.pFmt->dwMask |= pFmt->dwMask;
 410 #undef COPY_FIELD
 411
 412   if (memcmp(&copy, para->member.para.pFmt, sizeof(PARAFORMAT2)))
 413     para->member.para.nFlags |= MEPF_REWRAP;
 414 }
 415
 416
 417 void
 418 ME_GetSelectionParas(ME_TextEditor *editor, ME_DisplayItem **para, ME_DisplayItem **para_end)
 419 {
 420   ME_Cursor *pEndCursor = &editor->pCursors[1];
 421
 422   *para = ME_GetParagraph(editor->pCursors[0].pRun);
 423   *para_end = ME_GetParagraph(editor->pCursors[1].pRun);
 424   if ((*para_end)->member.para.nCharOfs < (*para)->member.para.nCharOfs) {
 425     ME_DisplayItem *tmp = *para;
 426
 427     *para = *para_end;
 428     *para_end = tmp;
 429     pEndCursor = &editor->pCursors[0];
 430   }
 431
 432   /* selection consists of chars from nFrom up to nTo-1 */
 433   if ((*para_end)->member.para.nCharOfs > (*para)->member.para.nCharOfs) {
 434     if (!pEndCursor->nOffset) {
 435       *para_end = ME_GetParagraph(ME_FindItemBack(pEndCursor->pRun, diRun));
 436     }
 437   }
 438 }
 439
 440
 441 void ME_SetSelectionParaFormat(ME_TextEditor *editor, const PARAFORMAT2 *pFmt)
 442 {
 443   ME_DisplayItem *para, *para_end;
 444
 445   ME_GetSelectionParas(editor, &para, &para_end);
 446
 447   do {
 448     ME_SetParaFormat(editor, para, pFmt);
 449     if (para == para_end)
 450       break;
 451     para = para->member.para.next_para;
 452   } while(1);
 453 }
 454
 455 void ME_GetParaFormat(ME_TextEditor *editor, const ME_DisplayItem *para, PARAFORMAT2 *pFmt)
 456 {
 457   if (pFmt->cbSize >= sizeof(PARAFORMAT2))
 458   {
 459     *pFmt = *para->member.para.pFmt;
 460     return;
 461   }
 462   CopyMemory(pFmt, para->member.para.pFmt, pFmt->cbSize);
 463 }
 464
 465 void ME_GetSelectionParaFormat(ME_TextEditor *editor, PARAFORMAT2 *pFmt)
 466 {
 467   ME_DisplayItem *para, *para_end;
 468   PARAFORMAT2 tmp;
 469
 470   ME_GetSelectionParas(editor, &para, &para_end);
 471
 472   ME_GetParaFormat(editor, para, pFmt);
 473   if (para == para_end) return;
 474
 475   do {
 476     ZeroMemory(&tmp, sizeof(tmp));
 477     tmp.cbSize = sizeof(tmp);
 478     ME_GetParaFormat(editor, para, &tmp);
 479
 480 #define CHECK_FIELD(m, f) \
 481     if (pFmt->f != tmp.f) pFmt->dwMask &= ~(m);
 482
 483     CHECK_FIELD(PFM_NUMBERING, wNumbering);
 484     /* para->member.para.pFmt->wEffects = pFmt->wEffects; */
 485     assert(tmp.dwMask & PFM_ALIGNMENT);
 486     CHECK_FIELD(PFM_NUMBERING, wNumbering);
 487     assert(tmp.dwMask & PFM_STARTINDENT);
 488     CHECK_FIELD(PFM_STARTINDENT, dxStartIndent);
 489     assert(tmp.dwMask & PFM_RIGHTINDENT);
 490     CHECK_FIELD(PFM_RIGHTINDENT, dxRightIndent);
 491     assert(tmp.dwMask & PFM_OFFSET);
 492     CHECK_FIELD(PFM_OFFSET, dxOffset);
 493     CHECK_FIELD(PFM_ALIGNMENT, wAlignment);
 494
 495     assert(tmp.dwMask & PFM_TABSTOPS);
 496     if (pFmt->dwMask & PFM_TABSTOPS) {
 497       if (pFmt->cTabCount != tmp.cTabCount ||
 498           memcmp(pFmt->rgxTabs, tmp.rgxTabs, tmp.cTabCount*sizeof(int)))
 499         pFmt->dwMask &= ~PFM_TABSTOPS;
 500     }
 501
 502     CHECK_FIELD(PFM_SPACEBEFORE, dySpaceBefore);
 503     CHECK_FIELD(PFM_SPACEAFTER, dySpaceAfter);
 504     CHECK_FIELD(PFM_LINESPACING, dyLineSpacing);
 505     CHECK_FIELD(PFM_STYLE, sStyle);
 506     CHECK_FIELD(PFM_SPACEAFTER, bLineSpacingRule);
 507     CHECK_FIELD(PFM_SHADING, wShadingWeight);
 508     CHECK_FIELD(PFM_SHADING, wShadingStyle);
 509     CHECK_FIELD(PFM_NUMBERINGSTART, wNumberingStart);
 510     CHECK_FIELD(PFM_NUMBERINGSTYLE, wNumberingStyle);
 511     CHECK_FIELD(PFM_NUMBERINGTAB, wNumberingTab);
 512     CHECK_FIELD(PFM_BORDER, wBorderSpace);
 513     CHECK_FIELD(PFM_BORDER, wBorderWidth);
 514     CHECK_FIELD(PFM_BORDER, wBorders);
 515
 516 #undef CHECK_FIELD
 517
 518     if (para == para_end)
 519       return;
 520     para = para->member.para.next_para;
 521   } while(1);
 522 }