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 void ME_MakeFirstParagraph(ME_TextEditor *editor)
  27 {
  28   ME_Context c;
  29   CHARFORMAT2W cf;
  30   LOGFONTW lf;
  31   HFONT hf;
  32   ME_TextBuffer *text = editor->pBuffer;
  33   ME_DisplayItem *para = ME_MakeDI(diParagraph);
  34   ME_DisplayItem *run;
  35   ME_Style *style;
  36   ME_String *eol_str;
  37   WCHAR cr_lf[] = {'\r','\n',0};
  38
  39   ME_InitContext(&c, editor, ITextHost_TxGetDC(editor->texthost));
  40
  41   hf = GetStockObject(SYSTEM_FONT);
  42   assert(hf);
  43   GetObjectW(hf, sizeof(LOGFONTW), &lf);
  44   ZeroMemory(&cf, sizeof(cf));
  45   cf.cbSize = sizeof(cf);
  46   cf.dwMask = CFM_BACKCOLOR|CFM_COLOR|CFM_FACE|CFM_SIZE|CFM_CHARSET;
  47   cf.dwMask |= CFM_ALLCAPS|CFM_BOLD|CFM_DISABLED|CFM_EMBOSS|CFM_HIDDEN;
  48   cf.dwMask |= CFM_IMPRINT|CFM_ITALIC|CFM_LINK|CFM_OUTLINE|CFM_PROTECTED;
  49   cf.dwMask |= CFM_REVISED|CFM_SHADOW|CFM_SMALLCAPS|CFM_STRIKEOUT;
  50   cf.dwMask |= CFM_SUBSCRIPT|CFM_UNDERLINETYPE|CFM_WEIGHT;
  51
  52   cf.dwEffects = CFE_AUTOCOLOR | CFE_AUTOBACKCOLOR;
  53   lstrcpyW(cf.szFaceName, lf.lfFaceName);
  54   /* Convert system font height from logical units to twips for cf.yHeight */
  55   cf.yHeight = (lf.lfHeight * 72 * 1440) / (c.dpi.cy * c.dpi.cy);
  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   style = ME_MakeStyle(&cf);
  65   text->pDefaultStyle = style;
  66
  67   eol_str = ME_MakeStringN(cr_lf, editor->bEmulateVersion10 ? 2 : 1);
  68   run = ME_MakeRun(style, eol_str, MERF_ENDPARA);
  69   run->member.run.nCharOfs = 0;
  70
  71   ME_InsertBefore(text->pLast, para);
  72   ME_InsertBefore(text->pLast, run);
  73   para->member.para.prev_para = text->pFirst;
  74   para->member.para.next_para = text->pLast;
  75   text->pFirst->member.para.next_para = para;
  76   text->pLast->member.para.prev_para = para;
  77
  78   text->pLast->member.para.nCharOfs = editor->bEmulateVersion10 ? 2 : 1;
  79
  80   ME_DestroyContext(&c);
  81 }
  82
  83 static void ME_MarkForWrapping(ME_TextEditor *editor, ME_DisplayItem *first, const ME_DisplayItem *last)
  84 {
  85   while(first != last)
  86   {
  87     first->member.para.nFlags |= MEPF_REWRAP;
  88     first = first->member.para.next_para;
  89   }
  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 static void ME_UpdateTableFlags(ME_DisplayItem *para)
  98 {
  99   para->member.para.pFmt->dwMask |= PFM_TABLE|PFM_TABLEROWDELIMITER;
 100   if (para->member.para.pCell) {
 101     para->member.para.nFlags |= MEPF_CELL;
 102   } else {
 103     para->member.para.nFlags &= ~MEPF_CELL;
 104   }
 105   if (para->member.para.nFlags & MEPF_ROWEND) {
 106     para->member.para.pFmt->wEffects |= PFE_TABLEROWDELIMITER;
 107   } else {
 108     para->member.para.pFmt->wEffects &= ~PFE_TABLEROWDELIMITER;
 109   }
 110   if (para->member.para.nFlags & (MEPF_ROWSTART|MEPF_CELL|MEPF_ROWEND))
 111     para->member.para.pFmt->wEffects |= PFE_TABLE;
 112   else
 113     para->member.para.pFmt->wEffects &= ~PFE_TABLE;
 114 }
 115
 116 static BOOL ME_SetParaFormat(ME_TextEditor *editor, ME_DisplayItem *para, const PARAFORMAT2 *pFmt)
 117 {
 118   PARAFORMAT2 copy;
 119   DWORD dwMask;
 120
 121   assert(para->member.para.pFmt->cbSize == sizeof(PARAFORMAT2));
 122   dwMask = pFmt->dwMask;
 123   if (pFmt->cbSize < sizeof(PARAFORMAT))
 124     return FALSE;
 125   else if (pFmt->cbSize < sizeof(PARAFORMAT2))
 126     dwMask &= PFM_ALL;
 127   else
 128     dwMask &= PFM_ALL2;
 129
 130   ME_AddUndoItem(editor, diUndoSetParagraphFormat, para);
 131
 132   copy = *para->member.para.pFmt;
 133
 134 #define COPY_FIELD(m, f) \
 135   if (dwMask & (m)) {                           \
 136     para->member.para.pFmt->dwMask |= m;        \
 137     para->member.para.pFmt->f = pFmt->f;        \
 138   }
 139
 140   COPY_FIELD(PFM_NUMBERING, wNumbering);
 141   COPY_FIELD(PFM_STARTINDENT, dxStartIndent);
 142   if (dwMask & PFM_OFFSETINDENT)
 143     para->member.para.pFmt->dxStartIndent += pFmt->dxStartIndent;
 144   COPY_FIELD(PFM_RIGHTINDENT, dxRightIndent);
 145   COPY_FIELD(PFM_OFFSET, dxOffset);
 146   COPY_FIELD(PFM_ALIGNMENT, wAlignment);
 147   if (dwMask & PFM_TABSTOPS)
 148   {
 149     para->member.para.pFmt->cTabCount = pFmt->cTabCount;
 150     memcpy(para->member.para.pFmt->rgxTabs, pFmt->rgxTabs, pFmt->cTabCount*sizeof(LONG));
 151   }
 152
 153   if (dwMask & (PFM_ALL2 & ~PFM_ALL))
 154   {
 155     /* PARAFORMAT2 fields */
 156
 157 #define EFFECTS_MASK (PFM_RTLPARA|PFM_KEEP|PFM_KEEPNEXT|PFM_PAGEBREAKBEFORE| \
 158                       PFM_NOLINENUMBER|PFM_NOWIDOWCONTROL|PFM_DONOTHYPHEN|PFM_SIDEBYSIDE| \
 159                       PFM_TABLE)
 160     /* we take for granted that PFE_xxx is the hiword of the corresponding PFM_xxx */
 161     if (dwMask & EFFECTS_MASK) {
 162       para->member.para.pFmt->dwMask |= dwMask & EFFECTS_MASK;
 163       para->member.para.pFmt->wEffects &= ~HIWORD(dwMask);
 164       para->member.para.pFmt->wEffects |= pFmt->wEffects & HIWORD(dwMask);
 165     }
 166 #undef EFFECTS_MASK
 167
 168     COPY_FIELD(PFM_SPACEBEFORE, dySpaceBefore);
 169     COPY_FIELD(PFM_SPACEAFTER, dySpaceAfter);
 170     COPY_FIELD(PFM_LINESPACING, dyLineSpacing);
 171     COPY_FIELD(PFM_STYLE, sStyle);
 172     COPY_FIELD(PFM_LINESPACING, bLineSpacingRule);
 173     COPY_FIELD(PFM_SHADING, wShadingWeight);
 174     COPY_FIELD(PFM_SHADING, wShadingStyle);
 175     COPY_FIELD(PFM_NUMBERINGSTART, wNumberingStart);
 176     COPY_FIELD(PFM_NUMBERINGSTYLE, wNumberingStyle);
 177     COPY_FIELD(PFM_NUMBERINGTAB, wNumberingTab);
 178     COPY_FIELD(PFM_BORDER, wBorderSpace);
 179     COPY_FIELD(PFM_BORDER, wBorderWidth);
 180     COPY_FIELD(PFM_BORDER, wBorders);
 181   }
 182
 183   para->member.para.pFmt->dwMask |= dwMask;
 184 #undef COPY_FIELD
 185
 186   if (memcmp(&copy, para->member.para.pFmt, sizeof(PARAFORMAT2)))
 187     para->member.para.nFlags |= MEPF_REWRAP;
 188
 189   return TRUE;
 190 }
 191
 192 /* split paragraph at the beginning of the run */
 193 ME_DisplayItem *ME_SplitParagraph(ME_TextEditor *editor, ME_DisplayItem *run,
 194                                   ME_Style *style, ME_String *eol_str,
 195                                   int paraFlags)
 196 {
 197   ME_DisplayItem *next_para = NULL;
 198   ME_DisplayItem *run_para = NULL;
 199   ME_DisplayItem *new_para = ME_MakeDI(diParagraph);
 200   ME_DisplayItem *end_run;
 201   ME_UndoItem *undo = NULL;
 202   int ofs, i;
 203   ME_DisplayItem *pp;
 204   int run_flags = MERF_ENDPARA;
 205
 206   if (!editor->bEmulateVersion10) { /* v4.1 */
 207     /* At most 1 of MEPF_CELL, MEPF_ROWSTART, or MEPF_ROWEND should be set. */
 208     assert(!(paraFlags & ~(MEPF_CELL|MEPF_ROWSTART|MEPF_ROWEND)));
 209     assert(!(paraFlags & (paraFlags-1)));
 210     if (paraFlags == MEPF_CELL)
 211       run_flags |= MERF_ENDCELL;
 212     else if (paraFlags == MEPF_ROWSTART)
 213       run_flags |= MERF_TABLESTART|MERF_HIDDEN;
 214   } else { /* v1.0 - v3.0 */
 215     assert(!(paraFlags & (MEPF_CELL|MEPF_ROWSTART|MEPF_ROWEND)));
 216   }
 217   end_run = ME_MakeRun(style, eol_str, run_flags);
 218
 219   assert(run->type == diRun);
 220   run_para = ME_GetParagraph(run);
 221   assert(run_para->member.para.pFmt->cbSize == sizeof(PARAFORMAT2));
 222
 223   ofs = end_run->member.run.nCharOfs = run->member.run.nCharOfs;
 224   next_para = run_para->member.para.next_para;
 225   assert(next_para == ME_FindItemFwd(run_para, diParagraphOrEnd));
 226
 227   undo = ME_AddUndoItem(editor, diUndoJoinParagraphs, NULL);
 228   if (undo)
 229     undo->nStart = run_para->member.para.nCharOfs + ofs;
 230
 231   /* Update selection cursors to point to the correct paragraph. */
 232   for (i = 0; i < editor->nCursors; i++) {
 233     if (editor->pCursors[i].pPara == run_para &&
 234         run->member.run.nCharOfs <= editor->pCursors[i].pRun->member.run.nCharOfs)
 235     {
 236       editor->pCursors[i].pPara = new_para;
 237     }
 238   }
 239
 240   /* the new paragraph will have a different starting offset, so let's update its runs */
 241   pp = run;
 242   while(pp->type == diRun) {
 243     pp->member.run.nCharOfs -= ofs;
 244     pp = ME_FindItemFwd(pp, diRunOrParagraphOrEnd);
 245   }
 246   new_para->member.para.nCharOfs = run_para->member.para.nCharOfs + ofs;
 247   new_para->member.para.nCharOfs += eol_str->nLen;
 248   new_para->member.para.nFlags = MEPF_REWRAP;
 249
 250   /* FIXME initialize format style and call ME_SetParaFormat blah blah */
 251   *new_para->member.para.pFmt = *run_para->member.para.pFmt;
 252   new_para->member.para.border = run_para->member.para.border;
 253
 254   /* insert paragraph into paragraph double linked list */
 255   new_para->member.para.prev_para = run_para;
 256   new_para->member.para.next_para = next_para;
 257   run_para->member.para.next_para = new_para;
 258   next_para->member.para.prev_para = new_para;
 259
 260   /* insert end run of the old paragraph, and new paragraph, into DI double linked list */
 261   ME_InsertBefore(run, new_para);
 262   ME_InsertBefore(new_para, end_run);
 263
 264   if (!editor->bEmulateVersion10) { /* v4.1 */
 265     if (paraFlags & (MEPF_ROWSTART|MEPF_CELL))
 266     {
 267       ME_DisplayItem *cell = ME_MakeDI(diCell);
 268       ME_InsertBefore(new_para, cell);
 269       new_para->member.para.pCell = cell;
 270       cell->member.cell.next_cell = NULL;
 271       if (paraFlags & MEPF_ROWSTART)
 272       {
 273         run_para->member.para.nFlags |= MEPF_ROWSTART;
 274         cell->member.cell.prev_cell = NULL;
 275         cell->member.cell.parent_cell = run_para->member.para.pCell;
 276         if (run_para->member.para.pCell)
 277           cell->member.cell.nNestingLevel = run_para->member.para.pCell->member.cell.nNestingLevel + 1;
 278         else
 279           cell->member.cell.nNestingLevel = 1;
 280       } else {
 281         cell->member.cell.prev_cell = run_para->member.para.pCell;
 282         assert(cell->member.cell.prev_cell);
 283         cell->member.cell.prev_cell->member.cell.next_cell = cell;
 284         assert(run_para->member.para.nFlags & MEPF_CELL);
 285         assert(!(run_para->member.para.nFlags & MEPF_ROWSTART));
 286         cell->member.cell.nNestingLevel = cell->member.cell.prev_cell->member.cell.nNestingLevel;
 287         cell->member.cell.parent_cell = cell->member.cell.prev_cell->member.cell.parent_cell;
 288       }
 289     } else if (paraFlags & MEPF_ROWEND) {
 290       run_para->member.para.nFlags |= MEPF_ROWEND;
 291       run_para->member.para.pCell = run_para->member.para.pCell->member.cell.parent_cell;
 292       new_para->member.para.pCell = run_para->member.para.pCell;
 293       assert(run_para->member.para.prev_para->member.para.nFlags & MEPF_CELL);
 294       assert(!(run_para->member.para.prev_para->member.para.nFlags & MEPF_ROWSTART));
 295       if (new_para->member.para.pCell != new_para->member.para.next_para->member.para.pCell
 296           && new_para->member.para.next_para->member.para.pCell
 297           && !new_para->member.para.next_para->member.para.pCell->member.cell.prev_cell)
 298       {
 299         /* Row starts just after the row that was ended. */
 300         new_para->member.para.nFlags |= MEPF_ROWSTART;
 301       }
 302     } else {
 303       new_para->member.para.pCell = run_para->member.para.pCell;
 304     }
 305     ME_UpdateTableFlags(run_para);
 306     ME_UpdateTableFlags(new_para);
 307   }
 308
 309   /* force rewrap of the */
 310   run_para->member.para.prev_para->member.para.nFlags |= MEPF_REWRAP;
 311   new_para->member.para.prev_para->member.para.nFlags |= MEPF_REWRAP;
 312
 313   /* we've added the end run, so we need to modify nCharOfs in the next paragraphs */
 314   ME_PropagateCharOffset(next_para, eol_str->nLen);
 315   editor->nParagraphs++;
 316
 317   return new_para;
 318 }
 319
 320 /* join tp with tp->member.para.next_para, keeping tp's style; this
 321  * is consistent with the original */
 322 ME_DisplayItem *ME_JoinParagraphs(ME_TextEditor *editor, ME_DisplayItem *tp,
 323                                   BOOL keepFirstParaFormat)
 324 {
 325   ME_DisplayItem *pNext, *pFirstRunInNext, *pRun, *pTmp;
 326   int i, shift;
 327   ME_UndoItem *undo = NULL;
 328   int end_len;
 329   CHARFORMAT2W fmt;
 330   ME_Cursor startCur, endCur;
 331
 332   assert(tp->type == diParagraph);
 333   assert(tp->member.para.next_para);
 334   assert(tp->member.para.next_para->type == diParagraph);
 335
 336   pNext = tp->member.para.next_para;
 337
 338   /* Need to locate end-of-paragraph run here, in order to know end_len */
 339   pRun = ME_FindItemBack(pNext, diRunOrParagraph);
 340
 341   assert(pRun);
 342   assert(pRun->type == diRun);
 343   assert(pRun->member.run.nFlags & MERF_ENDPARA);
 344
 345   end_len = pRun->member.run.strText->nLen;
 346
 347   /* null char format operation to store the original char format for the ENDPARA run */
 348   ME_InitCharFormat2W(&fmt);
 349   endCur.pPara = pNext;
 350   endCur.pRun = ME_FindItemFwd(pNext, diRun);
 351   endCur.nOffset = 0;
 352   startCur = endCur;
 353   ME_PrevRun(&startCur.pPara, &startCur.pRun);
 354   ME_SetCharFormat(editor, &startCur, &endCur, &fmt);
 355
 356   undo = ME_AddUndoItem(editor, diUndoSplitParagraph, pNext);
 357   if (undo)
 358   {
 359     undo->nStart = pNext->member.para.nCharOfs - end_len;
 360     undo->eol_str = pRun->member.run.strText;
 361     pRun->member.run.strText = NULL; /* Avoid freeing the string */
 362   }
 363   if (!keepFirstParaFormat)
 364   {
 365     ME_AddUndoItem(editor, diUndoSetParagraphFormat, tp);
 366     *tp->member.para.pFmt = *pNext->member.para.pFmt;
 367     tp->member.para.border = pNext->member.para.border;
 368   }
 369
 370   if (!editor->bEmulateVersion10) { /* v4.1 */
 371     /* Table cell/row properties are always moved over from the removed para. */
 372     tp->member.para.nFlags = pNext->member.para.nFlags;
 373     tp->member.para.pCell = pNext->member.para.pCell;
 374
 375     /* Remove cell boundary if it is between the end paragraph run and the next
 376      * paragraph display item. */
 377     pTmp = pRun->next;
 378     while (pTmp != pNext) {
 379       if (pTmp->type == diCell)
 380       {
 381         ME_Cell *pCell = &pTmp->member.cell;
 382         if (undo)
 383         {
 384           assert(!(undo->di.member.para.nFlags & MEPF_ROWEND));
 385           if (!(undo->di.member.para.nFlags & MEPF_ROWSTART))
 386             undo->di.member.para.nFlags |= MEPF_CELL;
 387           undo->di.member.para.pCell = ALLOC_OBJ(ME_DisplayItem);
 388           *undo->di.member.para.pCell = *pTmp;
 389           undo->di.member.para.pCell->next = NULL;
 390           undo->di.member.para.pCell->prev = NULL;
 391           undo->di.member.para.pCell->member.cell.next_cell = NULL;
 392           undo->di.member.para.pCell->member.cell.prev_cell = NULL;
 393         }
 394         ME_Remove(pTmp);
 395         if (pCell->prev_cell)
 396           pCell->prev_cell->member.cell.next_cell = pCell->next_cell;
 397         if (pCell->next_cell)
 398           pCell->next_cell->member.cell.prev_cell = pCell->prev_cell;
 399         ME_DestroyDisplayItem(pTmp);
 400         break;
 401       }
 402       pTmp = pTmp->next;
 403     }
 404   }
 405
 406   shift = pNext->member.para.nCharOfs - tp->member.para.nCharOfs - end_len;
 407
 408   pFirstRunInNext = ME_FindItemFwd(pNext, diRunOrParagraph);
 409
 410   assert(pFirstRunInNext->type == diRun);
 411
 412   /* Update selection cursors so they don't point to the removed end
 413    * paragraph run, and point to the correct paragraph. */
 414   for (i=0; i < editor->nCursors; i++) {
 415     if (editor->pCursors[i].pRun == pRun) {
 416       editor->pCursors[i].pRun = pFirstRunInNext;
 417       editor->pCursors[i].nOffset = 0;
 418     } else if (editor->pCursors[i].pPara == pNext) {
 419       editor->pCursors[i].pPara = tp;
 420     }
 421   }
 422
 423   pTmp = pNext;
 424   do {
 425     pTmp = ME_FindItemFwd(pTmp, diRunOrParagraphOrEnd);
 426     if (pTmp->type != diRun)
 427       break;
 428     TRACE("shifting \"%s\" by %d (previous %d)\n", debugstr_w(pTmp->member.run.strText->szData), shift, pTmp->member.run.nCharOfs);
 429     pTmp->member.run.nCharOfs += shift;
 430   } while(1);
 431
 432   ME_Remove(pRun);
 433   ME_DestroyDisplayItem(pRun);
 434
 435   if (editor->pLastSelStartPara == pNext)
 436     editor->pLastSelStartPara = tp;
 437   if (editor->pLastSelEndPara == pNext)
 438     editor->pLastSelEndPara = tp;
 439
 440   tp->member.para.next_para = pNext->member.para.next_para;
 441   pNext->member.para.next_para->member.para.prev_para = tp;
 442   ME_Remove(pNext);
 443   ME_DestroyDisplayItem(pNext);
 444
 445   ME_PropagateCharOffset(tp->member.para.next_para, -end_len);
 446
 447   ME_CheckCharOffsets(editor);
 448
 449   editor->nParagraphs--;
 450   tp->member.para.nFlags |= MEPF_REWRAP;
 451   return tp;
 452 }
 453
 454 ME_DisplayItem *ME_GetParagraph(ME_DisplayItem *item) {
 455   return ME_FindItemBackOrHere(item, diParagraph);
 456 }
 457
 458 void ME_DumpParaStyleToBuf(const PARAFORMAT2 *pFmt, char buf[2048])
 459 {
 460   char *p;
 461   p = buf;
 462
 463 #define DUMP(mask, name, fmt, field) \
 464   if (pFmt->dwMask & (mask)) p += sprintf(p, "%-22s" fmt "\n", name, pFmt->field); \
 465   else p += sprintf(p, "%-22sN/A\n", name);
 466
 467 /* we take for granted that PFE_xxx is the hiword of the corresponding PFM_xxx */
 468 #define DUMP_EFFECT(mask, name) \
 469   p += sprintf(p, "%-22s%s\n", name, (pFmt->dwMask & (mask)) ? ((pFmt->wEffects & ((mask) >> 16)) ? "yes" : "no") : "N/A");
 470
 471   DUMP(PFM_NUMBERING,      "Numbering:",         "%u", wNumbering);
 472   DUMP_EFFECT(PFM_DONOTHYPHEN,     "Disable auto-hyphen:");
 473   DUMP_EFFECT(PFM_KEEP,            "No page break in para:");
 474   DUMP_EFFECT(PFM_KEEPNEXT,        "No page break in para & next:");
 475   DUMP_EFFECT(PFM_NOLINENUMBER,    "No line number:");
 476   DUMP_EFFECT(PFM_NOWIDOWCONTROL,  "No widow & orphan:");
 477   DUMP_EFFECT(PFM_PAGEBREAKBEFORE, "Page break before:");
 478   DUMP_EFFECT(PFM_RTLPARA,         "RTL para:");
 479   DUMP_EFFECT(PFM_SIDEBYSIDE,      "Side by side:");
 480   DUMP_EFFECT(PFM_TABLE,           "Table:");
 481   DUMP(PFM_OFFSETINDENT,   "Offset indent:",     "%d", dxStartIndent);
 482   DUMP(PFM_STARTINDENT,    "Start indent:",      "%d", dxStartIndent);
 483   DUMP(PFM_RIGHTINDENT,    "Right indent:",      "%d", dxRightIndent);
 484   DUMP(PFM_OFFSET,         "Offset:",            "%d", dxOffset);
 485   if (pFmt->dwMask & PFM_ALIGNMENT) {
 486     switch (pFmt->wAlignment) {
 487     case PFA_LEFT   : p += sprintf(p, "Alignment:            left\n"); break;
 488     case PFA_RIGHT  : p += sprintf(p, "Alignment:            right\n"); break;
 489     case PFA_CENTER : p += sprintf(p, "Alignment:            center\n"); break;
 490     case PFA_JUSTIFY: p += sprintf(p, "Alignment:            justify\n"); break;
 491     default         : p += sprintf(p, "Alignment:            incorrect %d\n", pFmt->wAlignment); break;
 492     }
 493   }
 494   else p += sprintf(p, "Alignment:            N/A\n");
 495   DUMP(PFM_TABSTOPS,       "Tab Stops:",         "%d", cTabCount);
 496   if (pFmt->dwMask & PFM_TABSTOPS) {
 497     int i;
 498     p += sprintf(p, "\t");
 499     for (i = 0; i < pFmt->cTabCount; i++) p += sprintf(p, "%x ", pFmt->rgxTabs[i]);
 500     p += sprintf(p, "\n");
 501   }
 502   DUMP(PFM_SPACEBEFORE,    "Space Before:",      "%d", dySpaceBefore);
 503   DUMP(PFM_SPACEAFTER,     "Space After:",       "%d", dySpaceAfter);
 504   DUMP(PFM_LINESPACING,    "Line spacing:",      "%d", dyLineSpacing);
 505   DUMP(PFM_STYLE,          "Text style:",        "%d", sStyle);
 506   DUMP(PFM_LINESPACING,    "Line spacing rule:", "%u", bLineSpacingRule);
 507   /* bOutlineLevel should be 0 */
 508   DUMP(PFM_SHADING,        "Shading Weigth:",    "%u", wShadingWeight);
 509   DUMP(PFM_SHADING,        "Shading Style:",     "%u", wShadingStyle);
 510   DUMP(PFM_NUMBERINGSTART, "Numbering Start:",   "%u", wNumberingStart);
 511   DUMP(PFM_NUMBERINGSTYLE, "Numbering Style:",   "0x%x", wNumberingStyle);
 512   DUMP(PFM_NUMBERINGTAB,   "Numbering Tab:",     "%u", wNumberingStyle);
 513   DUMP(PFM_BORDER,         "Border Space:",      "%u", wBorderSpace);
 514   DUMP(PFM_BORDER,         "Border Width:",      "%u", wBorderWidth);
 515   DUMP(PFM_BORDER,         "Borders:",           "%u", wBorders);
 516
 517 #undef DUMP
 518 #undef DUMP_EFFECT
 519 }
 520
 521 void
 522 ME_GetSelectionParas(ME_TextEditor *editor, ME_DisplayItem **para, ME_DisplayItem **para_end)
 523 {
 524   ME_Cursor *pEndCursor = &editor->pCursors[1];
 525
 526   *para = editor->pCursors[0].pPara;
 527   *para_end = editor->pCursors[1].pPara;
 528   if (*para == *para_end)
 529     return;
 530
 531   if ((*para_end)->member.para.nCharOfs < (*para)->member.para.nCharOfs) {
 532     ME_DisplayItem *tmp = *para;
 533
 534     *para = *para_end;
 535     *para_end = tmp;
 536     pEndCursor = &editor->pCursors[0];
 537   }
 538
 539   /* The paragraph at the end of a non-empty selection isn't included
 540    * if the selection ends at the start of the paragraph. */
 541   if (!pEndCursor->pRun->member.run.nCharOfs && !pEndCursor->nOffset)
 542     *para_end = (*para_end)->member.para.prev_para;
 543 }
 544
 545
 546 BOOL ME_SetSelectionParaFormat(ME_TextEditor *editor, const PARAFORMAT2 *pFmt)
 547 {
 548   ME_DisplayItem *para, *para_end;
 549
 550   ME_GetSelectionParas(editor, &para, &para_end);
 551
 552   do {
 553     ME_SetParaFormat(editor, para, pFmt);
 554     if (para == para_end)
 555       break;
 556     para = para->member.para.next_para;
 557   } while(1);
 558
 559   return TRUE;
 560 }
 561
 562 static void ME_GetParaFormat(ME_TextEditor *editor,
 563                              const ME_DisplayItem *para,
 564                              PARAFORMAT2 *pFmt)
 565 {
 566   UINT cbSize = pFmt->cbSize;
 567   if (pFmt->cbSize >= sizeof(PARAFORMAT2)) {
 568     *pFmt = *para->member.para.pFmt;
 569   } else {
 570     CopyMemory(pFmt, para->member.para.pFmt, pFmt->cbSize);
 571     pFmt->dwMask &= PFM_ALL;
 572   }
 573   pFmt->cbSize = cbSize;
 574 }
 575
 576 void ME_GetSelectionParaFormat(ME_TextEditor *editor, PARAFORMAT2 *pFmt)
 577 {
 578   ME_DisplayItem *para, *para_end;
 579   PARAFORMAT2 *curFmt;
 580
 581   if (pFmt->cbSize < sizeof(PARAFORMAT)) {
 582     pFmt->dwMask = 0;
 583     return;
 584   }
 585
 586   ME_GetSelectionParas(editor, &para, &para_end);
 587
 588   ME_GetParaFormat(editor, para, pFmt);
 589
 590   /* Invalidate values that change across the selected paragraphs. */
 591   while (para != para_end)
 592   {
 593     para = para->member.para.next_para;
 594     curFmt = para->member.para.pFmt;
 595
 596 #define CHECK_FIELD(m, f) \
 597     if (pFmt->f != curFmt->f) pFmt->dwMask &= ~(m);
 598
 599     CHECK_FIELD(PFM_NUMBERING, wNumbering);
 600     CHECK_FIELD(PFM_STARTINDENT, dxStartIndent);
 601     CHECK_FIELD(PFM_RIGHTINDENT, dxRightIndent);
 602     CHECK_FIELD(PFM_OFFSET, dxOffset);
 603     CHECK_FIELD(PFM_ALIGNMENT, wAlignment);
 604     if (pFmt->dwMask & PFM_TABSTOPS) {
 605       if (pFmt->cTabCount != para->member.para.pFmt->cTabCount ||
 606           memcmp(pFmt->rgxTabs, curFmt->rgxTabs, curFmt->cTabCount*sizeof(int)))
 607         pFmt->dwMask &= ~PFM_TABSTOPS;
 608     }
 609
 610     if (pFmt->dwMask >= sizeof(PARAFORMAT2))
 611     {
 612       pFmt->dwMask &= ~((pFmt->wEffects ^ curFmt->wEffects) << 16);
 613       CHECK_FIELD(PFM_SPACEBEFORE, dySpaceBefore);
 614       CHECK_FIELD(PFM_SPACEAFTER, dySpaceAfter);
 615       CHECK_FIELD(PFM_LINESPACING, dyLineSpacing);
 616       CHECK_FIELD(PFM_STYLE, sStyle);
 617       CHECK_FIELD(PFM_SPACEAFTER, bLineSpacingRule);
 618       CHECK_FIELD(PFM_SHADING, wShadingWeight);
 619       CHECK_FIELD(PFM_SHADING, wShadingStyle);
 620       CHECK_FIELD(PFM_NUMBERINGSTART, wNumberingStart);
 621       CHECK_FIELD(PFM_NUMBERINGSTYLE, wNumberingStyle);
 622       CHECK_FIELD(PFM_NUMBERINGTAB, wNumberingTab);
 623       CHECK_FIELD(PFM_BORDER, wBorderSpace);
 624       CHECK_FIELD(PFM_BORDER, wBorderWidth);
 625       CHECK_FIELD(PFM_BORDER, wBorders);
 626     }
 627 #undef CHECK_FIELD
 628   }
 629 }
 630
 631 void ME_SetDefaultParaFormat(PARAFORMAT2 *pFmt)
 632 {
 633     ZeroMemory(pFmt, sizeof(PARAFORMAT2));
 634     pFmt->cbSize = sizeof(PARAFORMAT2);
 635     pFmt->dwMask = PFM_ALL2;
 636     pFmt->wAlignment = PFA_LEFT;
 637     pFmt->sStyle = -1;
 638     pFmt->bOutlineLevel = TRUE;
 639 }