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   CHARFORMAT2W cf;
  32   LOGFONTW lf;
  33   HFONT hf;
  34   ME_TextBuffer *text = editor->pBuffer;
  35   ME_DisplayItem *para = ME_MakeDI(diParagraph);
  36   ME_DisplayItem *run;
  37   ME_Style *style;
  38
  39   ME_InitContext(&c, editor, GetDC(editor->hWnd));
  40
  41   hf = (HFONT)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   run = ME_MakeRun(style, ME_MakeString(wszParagraphSign), MERF_ENDPARA);
  68   run->member.run.nCharOfs = 0;
  69   run->member.run.nCR = 1;
  70   run->member.run.nLF = (editor->bEmulateVersion10) ? 1 : 0;
  71
  72   ME_InsertBefore(text->pLast, para);
  73   ME_InsertBefore(text->pLast, run);
  74   para->member.para.prev_para = text->pFirst;
  75   para->member.para.next_para = text->pLast;
  76   text->pFirst->member.para.next_para = para;
  77   text->pLast->member.para.prev_para = para;
  78
  79   text->pLast->member.para.nCharOfs = 1;
  80
  81   ME_DestroyContext(&c, editor->hWnd);
  82 }
  83
  84 void ME_MarkAllForWrapping(ME_TextEditor *editor)
  85 {
  86   ME_MarkForWrapping(editor, editor->pBuffer->pFirst->member.para.next_para, editor->pBuffer->pLast);
  87 }
  88
  89 void ME_MarkForWrapping(ME_TextEditor *editor, ME_DisplayItem *first, const ME_DisplayItem *last)
  90 {
  91   while(first != last)
  92   {
  93     first->member.para.nFlags |= MEPF_REWRAP;
  94     first = first->member.para.next_para;
  95   }
  96 }
  97
  98 void ME_MarkForPainting(ME_TextEditor *editor, ME_DisplayItem *first, const ME_DisplayItem *last)
  99 {
 100   while(first != last && first)
 101   {
 102     first->member.para.nFlags |= MEPF_REPAINT;
 103     first = first->member.para.next_para;
 104   }
 105 }
 106
 107 static void ME_UpdateTableFlags(ME_DisplayItem *para)
 108 {
 109   para->member.para.pFmt->dwMask |= PFM_TABLE|PFM_TABLEROWDELIMITER;
 110   if (para->member.para.pCell) {
 111     para->member.para.nFlags |= MEPF_CELL;
 112   } else {
 113     para->member.para.nFlags &= ~MEPF_CELL;
 114   }
 115   if (para->member.para.nFlags & MEPF_ROWEND) {
 116     para->member.para.pFmt->wEffects |= PFE_TABLEROWDELIMITER;
 117   } else {
 118     para->member.para.pFmt->wEffects &= ~PFE_TABLEROWDELIMITER;
 119   }
 120   if (para->member.para.nFlags & (MEPF_ROWSTART|MEPF_CELL|MEPF_ROWEND))
 121     para->member.para.pFmt->wEffects |= PFE_TABLE;
 122   else
 123     para->member.para.pFmt->wEffects &= ~PFE_TABLE;
 124 }
 125
 126 /* split paragraph at the beginning of the run */
 127 ME_DisplayItem *ME_SplitParagraph(ME_TextEditor *editor, ME_DisplayItem *run,
 128                                   ME_Style *style, int numCR, int numLF,
 129                                   int paraFlags)
 130 {
 131   ME_DisplayItem *next_para = NULL;
 132   ME_DisplayItem *run_para = NULL;
 133   ME_DisplayItem *new_para = ME_MakeDI(diParagraph);
 134   ME_DisplayItem *end_run;
 135   ME_UndoItem *undo = NULL;
 136   int ofs;
 137   ME_DisplayItem *pp;
 138   int end_len = numCR + numLF;
 139   int run_flags = MERF_ENDPARA;
 140   if (!editor->bEmulateVersion10) { /* v4.1 */
 141     /* At most 1 of MEPF_CELL, MEPF_ROWSTART, or MEPF_ROWEND should be set. */
 142     assert(!(paraFlags & ~(MEPF_CELL|MEPF_ROWSTART|MEPF_ROWEND)));
 143     assert(!(paraFlags & (paraFlags-1)));
 144     if (paraFlags == MEPF_CELL)
 145       run_flags |= MERF_ENDCELL;
 146     else if (paraFlags == MEPF_ROWSTART)
 147       run_flags |= MERF_TABLESTART|MERF_HIDDEN;
 148   } else { /* v1.0 - v3.0 */
 149     assert(!(paraFlags & (MEPF_CELL|MEPF_ROWSTART|MEPF_ROWEND)));
 150   }
 151   end_run = ME_MakeRun(style,ME_MakeString(wszParagraphSign), run_flags);
 152
 153   assert(run->type == diRun);
 154
 155   end_run->member.run.nCR = numCR;
 156   end_run->member.run.nLF = numLF;
 157   run_para = ME_GetParagraph(run);
 158   assert(run_para->member.para.pFmt->cbSize == sizeof(PARAFORMAT2));
 159
 160   ofs = end_run->member.run.nCharOfs = run->member.run.nCharOfs;
 161   next_para = run_para->member.para.next_para;
 162   assert(next_para == ME_FindItemFwd(run_para, diParagraphOrEnd));
 163
 164   undo = ME_AddUndoItem(editor, diUndoJoinParagraphs, NULL);
 165   if (undo)
 166     undo->nStart = run_para->member.para.nCharOfs + ofs;
 167
 168   /* the new paragraph will have a different starting offset, so let's update its runs */
 169   pp = run;
 170   while(pp->type == diRun) {
 171     pp->member.run.nCharOfs -= ofs;
 172     pp = ME_FindItemFwd(pp, diRunOrParagraphOrEnd);
 173   }
 174   new_para->member.para.nCharOfs = ME_GetParagraph(run)->member.para.nCharOfs+ofs;
 175   new_para->member.para.nCharOfs += end_len;
 176   new_para->member.para.nFlags = MEPF_REWRAP;
 177
 178   /* FIXME initialize format style and call ME_SetParaFormat blah blah */
 179   *new_para->member.para.pFmt = *run_para->member.para.pFmt;
 180   new_para->member.para.border = run_para->member.para.border;
 181
 182   /* insert paragraph into paragraph double linked list */
 183   new_para->member.para.prev_para = run_para;
 184   new_para->member.para.next_para = next_para;
 185   run_para->member.para.next_para = new_para;
 186   next_para->member.para.prev_para = new_para;
 187
 188   /* insert end run of the old paragraph, and new paragraph, into DI double linked list */
 189   ME_InsertBefore(run, new_para);
 190   ME_InsertBefore(new_para, end_run);
 191
 192   if (!editor->bEmulateVersion10) { /* v4.1 */
 193     if (paraFlags & (MEPF_ROWSTART|MEPF_CELL))
 194     {
 195       ME_DisplayItem *cell = ME_MakeDI(diCell);
 196       ME_InsertBefore(new_para, cell);
 197       new_para->member.para.pCell = cell;
 198       cell->member.cell.next_cell = NULL;
 199       if (paraFlags & MEPF_ROWSTART)
 200       {
 201         run_para->member.para.nFlags |= MEPF_ROWSTART;
 202         cell->member.cell.prev_cell = NULL;
 203         cell->member.cell.parent_cell = run_para->member.para.pCell;
 204         if (run_para->member.para.pCell)
 205           cell->member.cell.nNestingLevel = run_para->member.para.pCell->member.cell.nNestingLevel + 1;
 206         else
 207           cell->member.cell.nNestingLevel = 1;
 208       } else {
 209         cell->member.cell.prev_cell = run_para->member.para.pCell;
 210         assert(cell->member.cell.prev_cell);
 211         cell->member.cell.prev_cell->member.cell.next_cell = cell;
 212         assert(run_para->member.para.nFlags & MEPF_CELL);
 213         assert(!(run_para->member.para.nFlags & MEPF_ROWSTART));
 214         cell->member.cell.nNestingLevel = cell->member.cell.prev_cell->member.cell.nNestingLevel;
 215         cell->member.cell.parent_cell = cell->member.cell.prev_cell->member.cell.parent_cell;
 216       }
 217     } else if (paraFlags & MEPF_ROWEND) {
 218       run_para->member.para.nFlags |= MEPF_ROWEND;
 219       run_para->member.para.pCell = run_para->member.para.pCell->member.cell.parent_cell;
 220       new_para->member.para.pCell = run_para->member.para.pCell;
 221       assert(run_para->member.para.prev_para->member.para.nFlags & MEPF_CELL);
 222       assert(!(run_para->member.para.prev_para->member.para.nFlags & MEPF_ROWSTART));
 223     } else {
 224       new_para->member.para.pCell = run_para->member.para.pCell;
 225     }
 226     ME_UpdateTableFlags(run_para);
 227     ME_UpdateTableFlags(new_para);
 228   }
 229
 230   /* force rewrap of the */
 231   run_para->member.para.prev_para->member.para.nFlags |= MEPF_REWRAP;
 232   new_para->member.para.prev_para->member.para.nFlags |= MEPF_REWRAP;
 233
 234   /* we've added the end run, so we need to modify nCharOfs in the next paragraphs */
 235   ME_PropagateCharOffset(next_para, end_len);
 236   editor->nParagraphs++;
 237
 238   return new_para;
 239 }
 240
 241 /* join tp with tp->member.para.next_para, keeping tp's style; this
 242  * is consistent with the original */
 243 ME_DisplayItem *ME_JoinParagraphs(ME_TextEditor *editor, ME_DisplayItem *tp,
 244                                   BOOL keepFirstParaFormat)
 245 {
 246   ME_DisplayItem *pNext, *pFirstRunInNext, *pRun, *pTmp;
 247   int i, shift;
 248   ME_UndoItem *undo = NULL;
 249   int end_len;
 250
 251   assert(tp->type == diParagraph);
 252   assert(tp->member.para.next_para);
 253   assert(tp->member.para.next_para->type == diParagraph);
 254
 255   pNext = tp->member.para.next_para;
 256
 257   /* Need to locate end-of-paragraph run here, in order to know end_len */
 258   pRun = ME_FindItemBack(pNext, diRunOrParagraph);
 259
 260   assert(pRun);
 261   assert(pRun->type == diRun);
 262   assert(pRun->member.run.nFlags & MERF_ENDPARA);
 263
 264   end_len = pRun->member.run.nCR + pRun->member.run.nLF;
 265
 266   {
 267     /* null char format operation to store the original char format for the ENDPARA run */
 268     CHARFORMAT2W fmt;
 269     ME_InitCharFormat2W(&fmt);
 270     ME_SetCharFormat(editor, pNext->member.para.nCharOfs - end_len, end_len, &fmt);
 271   }
 272   undo = ME_AddUndoItem(editor, diUndoSplitParagraph, pNext);
 273   if (undo)
 274   {
 275     undo->nStart = pNext->member.para.nCharOfs - end_len;
 276     undo->nCR = pRun->member.run.nCR;
 277     undo->nLF = pRun->member.run.nLF;
 278   }
 279   if (!keepFirstParaFormat)
 280   {
 281     ME_AddUndoItem(editor, diUndoSetParagraphFormat, tp);
 282     *tp->member.para.pFmt = *pNext->member.para.pFmt;
 283   }
 284
 285   if (!editor->bEmulateVersion10) { /* v4.1 */
 286     /* Table cell/row properties are always moved over from the removed para. */
 287     tp->member.para.nFlags = pNext->member.para.nFlags;
 288     tp->member.para.pCell = pNext->member.para.pCell;
 289
 290     /* Remove cell boundary if it is between the end paragraph run and the next
 291      * paragraph display item. */
 292     pTmp = pRun->next;
 293     while (pTmp != pNext) {
 294       if (pTmp->type == diCell)
 295       {
 296         ME_Cell *pCell = &pTmp->member.cell;
 297         if (undo)
 298         {
 299           assert(!(undo->di.member.para.nFlags & MEPF_ROWEND));
 300           if (!(undo->di.member.para.nFlags & MEPF_ROWSTART))
 301             undo->di.member.para.nFlags |= MEPF_CELL;
 302           undo->di.member.para.pCell = ALLOC_OBJ(ME_DisplayItem);
 303           *undo->di.member.para.pCell = *pTmp;
 304           undo->di.member.para.pCell->next = NULL;
 305           undo->di.member.para.pCell->prev = NULL;
 306           undo->di.member.para.pCell->member.cell.next_cell = NULL;
 307           undo->di.member.para.pCell->member.cell.prev_cell = NULL;
 308         }
 309         ME_Remove(pTmp);
 310         if (pCell->prev_cell)
 311           pCell->prev_cell->member.cell.next_cell = pCell->next_cell;
 312         if (pCell->next_cell)
 313           pCell->next_cell->member.cell.prev_cell = pCell->prev_cell;
 314         ME_DestroyDisplayItem(pTmp);
 315         break;
 316       }
 317       pTmp = pTmp->next;
 318     }
 319   }
 320
 321   shift = pNext->member.para.nCharOfs - tp->member.para.nCharOfs - end_len;
 322
 323   pFirstRunInNext = ME_FindItemFwd(pNext, diRunOrParagraph);
 324
 325   assert(pFirstRunInNext->type == diRun);
 326
 327   /* if some cursor points at end of paragraph, make it point to the first
 328      run of the next joined paragraph */
 329   for (i=0; i<editor->nCursors; i++) {
 330     if (editor->pCursors[i].pRun == pRun) {
 331       editor->pCursors[i].pRun = pFirstRunInNext;
 332       editor->pCursors[i].nOffset = 0;
 333     }
 334   }
 335
 336   pTmp = pNext;
 337   do {
 338     pTmp = ME_FindItemFwd(pTmp, diRunOrParagraphOrEnd);
 339     if (pTmp->type != diRun)
 340       break;
 341     TRACE("shifting \"%s\" by %d (previous %d)\n", debugstr_w(pTmp->member.run.strText->szData), shift, pTmp->member.run.nCharOfs);
 342     pTmp->member.run.nCharOfs += shift;
 343   } while(1);
 344
 345   ME_Remove(pRun);
 346   ME_DestroyDisplayItem(pRun);
 347
 348   if (editor->pLastSelStartPara == pNext)
 349     editor->pLastSelStartPara = tp;
 350   if (editor->pLastSelEndPara == pNext)
 351     editor->pLastSelEndPara = tp;
 352
 353   tp->member.para.next_para = pNext->member.para.next_para;
 354   pNext->member.para.next_para->member.para.prev_para = tp;
 355   ME_Remove(pNext);
 356   ME_DestroyDisplayItem(pNext);
 357
 358   ME_PropagateCharOffset(tp->member.para.next_para, -end_len);
 359
 360   ME_CheckCharOffsets(editor);
 361
 362   editor->nParagraphs--;
 363   tp->member.para.nFlags |= MEPF_REWRAP;
 364   return tp;
 365 }
 366
 367 ME_DisplayItem *ME_GetParagraph(ME_DisplayItem *item) {
 368   return ME_FindItemBackOrHere(item, diParagraph);
 369 }
 370
 371 void ME_DumpParaStyleToBuf(const PARAFORMAT2 *pFmt, char buf[2048])
 372 {
 373   char *p;
 374   p = buf;
 375
 376 #define DUMP(mask, name, fmt, field) \
 377   if (pFmt->dwMask & (mask)) p += sprintf(p, "%-22s" fmt "\n", name, pFmt->field); \
 378   else p += sprintf(p, "%-22sN/A\n", name);
 379
 380 /* we take for granted that PFE_xxx is the hiword of the corresponding PFM_xxx */
 381 #define DUMP_EFFECT(mask, name) \
 382   p += sprintf(p, "%-22s%s\n", name, (pFmt->dwMask & (mask)) ? ((pFmt->wEffects & ((mask) >> 8)) ? "yes" : "no") : "N/A");
 383
 384   DUMP(PFM_NUMBERING,      "Numbering:",         "%u", wNumbering);
 385   DUMP_EFFECT(PFM_DONOTHYPHEN,     "Disable auto-hyphen:");
 386   DUMP_EFFECT(PFM_KEEP,            "No page break in para:");
 387   DUMP_EFFECT(PFM_KEEPNEXT,        "No page break in para & next:");
 388   DUMP_EFFECT(PFM_NOLINENUMBER,    "No line number:");
 389   DUMP_EFFECT(PFM_NOWIDOWCONTROL,  "No widow & orphan:");
 390   DUMP_EFFECT(PFM_PAGEBREAKBEFORE, "Page break before:");
 391   DUMP_EFFECT(PFM_RTLPARA,         "RTL para:");
 392   DUMP_EFFECT(PFM_SIDEBYSIDE,      "Side by side:");
 393   DUMP_EFFECT(PFM_TABLE,           "Table:");
 394   DUMP(PFM_OFFSETINDENT,   "Offset indent:",     "%d", dxStartIndent);
 395   DUMP(PFM_STARTINDENT,    "Start indent:",      "%d", dxStartIndent);
 396   DUMP(PFM_RIGHTINDENT,    "Right indent:",      "%d", dxRightIndent);
 397   DUMP(PFM_OFFSET,         "Offset:",            "%d", dxOffset);
 398   if (pFmt->dwMask & PFM_ALIGNMENT) {
 399     switch (pFmt->wAlignment) {
 400     case PFA_LEFT   : p += sprintf(p, "Alignment:            left\n"); break;
 401     case PFA_RIGHT  : p += sprintf(p, "Alignment:            right\n"); break;
 402     case PFA_CENTER : p += sprintf(p, "Alignment:            center\n"); break;
 403     case PFA_JUSTIFY: p += sprintf(p, "Alignment:            justify\n"); break;
 404     default         : p += sprintf(p, "Alignment:            incorrect %d\n", pFmt->wAlignment); break;
 405     }
 406   }
 407   else p += sprintf(p, "Alignment:            N/A\n");
 408   DUMP(PFM_TABSTOPS,       "Tab Stops:",         "%d", cTabCount);
 409   if (pFmt->dwMask & PFM_TABSTOPS) {
 410     int i;
 411     p += sprintf(p, "\t");
 412     for (i = 0; i < pFmt->cTabCount; i++) p += sprintf(p, "%x ", pFmt->rgxTabs[i]);
 413     p += sprintf(p, "\n");
 414   }
 415   DUMP(PFM_SPACEBEFORE,    "Space Before:",      "%d", dySpaceBefore);
 416   DUMP(PFM_SPACEAFTER,     "Space After:",       "%d", dySpaceAfter);
 417   DUMP(PFM_LINESPACING,    "Line spacing:",      "%d", dyLineSpacing);
 418   DUMP(PFM_STYLE,          "Text style:",        "%d", sStyle);
 419   DUMP(PFM_LINESPACING,    "Line spacing rule:", "%u", bLineSpacingRule);
 420   /* bOutlineLevel should be 0 */
 421   DUMP(PFM_SHADING,        "Shading Weigth:",    "%u", wShadingWeight);
 422   DUMP(PFM_SHADING,        "Shading Style:",     "%u", wShadingStyle);
 423   DUMP(PFM_NUMBERINGSTART, "Numbering Start:",   "%u", wNumberingStart);
 424   DUMP(PFM_NUMBERINGSTYLE, "Numbering Style:",   "0x%x", wNumberingStyle);
 425   DUMP(PFM_NUMBERINGTAB,   "Numbering Tab:",     "%u", wNumberingStyle);
 426   DUMP(PFM_BORDER,         "Border Space:",      "%u", wBorderSpace);
 427   DUMP(PFM_BORDER,         "Border Width:",      "%u", wBorderWidth);
 428   DUMP(PFM_BORDER,         "Borders:",           "%u", wBorders);
 429
 430 #undef DUMP
 431 #undef DUMP_EFFECT
 432 }
 433
 434 BOOL ME_SetParaFormat(ME_TextEditor *editor, ME_DisplayItem *para, const PARAFORMAT2 *pFmt)
 435 {
 436   PARAFORMAT2 copy;
 437   assert(sizeof(*para->member.para.pFmt) == sizeof(PARAFORMAT2));
 438   ME_AddUndoItem(editor, diUndoSetParagraphFormat, para);
 439
 440   copy = *para->member.para.pFmt;
 441
 442 #define COPY_FIELD(m, f) \
 443   if (pFmt->dwMask & (m)) {                     \
 444     para->member.para.pFmt->dwMask |= m;        \
 445     para->member.para.pFmt->f = pFmt->f;        \
 446   }
 447
 448   COPY_FIELD(PFM_NUMBERING, wNumbering);
 449 #define EFFECTS_MASK (PFM_RTLPARA|PFM_KEEP|PFM_KEEPNEXT|PFM_PAGEBREAKBEFORE| \
 450                       PFM_NOLINENUMBER|PFM_NOWIDOWCONTROL|PFM_DONOTHYPHEN|PFM_SIDEBYSIDE| \
 451                       PFM_TABLE)
 452   /* we take for granted that PFE_xxx is the hiword of the corresponding PFM_xxx */
 453   if (pFmt->dwMask & EFFECTS_MASK) {
 454     para->member.para.pFmt->dwMask |= pFmt->dwMask & EFFECTS_MASK;
 455     para->member.para.pFmt->wEffects &= ~HIWORD(pFmt->dwMask);
 456     para->member.para.pFmt->wEffects |= pFmt->wEffects & HIWORD(pFmt->dwMask);
 457   }
 458 #undef EFFECTS_MASK
 459
 460   COPY_FIELD(PFM_STARTINDENT, dxStartIndent);
 461   if (pFmt->dwMask & PFM_OFFSETINDENT)
 462     para->member.para.pFmt->dxStartIndent += pFmt->dxStartIndent;
 463   COPY_FIELD(PFM_RIGHTINDENT, dxRightIndent);
 464   COPY_FIELD(PFM_OFFSET, dxOffset);
 465   COPY_FIELD(PFM_ALIGNMENT, wAlignment);
 466
 467   if (pFmt->dwMask & PFM_TABSTOPS)
 468   {
 469     para->member.para.pFmt->cTabCount = pFmt->cTabCount;
 470     memcpy(para->member.para.pFmt->rgxTabs, pFmt->rgxTabs, pFmt->cTabCount*sizeof(LONG));
 471   }
 472   COPY_FIELD(PFM_SPACEBEFORE, dySpaceBefore);
 473   COPY_FIELD(PFM_SPACEAFTER, dySpaceAfter);
 474   COPY_FIELD(PFM_LINESPACING, dyLineSpacing);
 475   COPY_FIELD(PFM_STYLE, sStyle);
 476   COPY_FIELD(PFM_LINESPACING, bLineSpacingRule);
 477   COPY_FIELD(PFM_SHADING, wShadingWeight);
 478   COPY_FIELD(PFM_SHADING, wShadingStyle);
 479   COPY_FIELD(PFM_NUMBERINGSTART, wNumberingStart);
 480   COPY_FIELD(PFM_NUMBERINGSTYLE, wNumberingStyle);
 481   COPY_FIELD(PFM_NUMBERINGTAB, wNumberingTab);
 482   COPY_FIELD(PFM_BORDER, wBorderSpace);
 483   COPY_FIELD(PFM_BORDER, wBorderWidth);
 484   COPY_FIELD(PFM_BORDER, wBorders);
 485
 486   para->member.para.pFmt->dwMask |= pFmt->dwMask;
 487 #undef COPY_FIELD
 488
 489   if (memcmp(&copy, para->member.para.pFmt, sizeof(PARAFORMAT2)))
 490     para->member.para.nFlags |= MEPF_REWRAP;
 491
 492   return TRUE;
 493 }
 494
 495
 496 void
 497 ME_GetSelectionParas(ME_TextEditor *editor, ME_DisplayItem **para, ME_DisplayItem **para_end)
 498 {
 499   ME_Cursor *pEndCursor = &editor->pCursors[1];
 500
 501   *para = ME_GetParagraph(editor->pCursors[0].pRun);
 502   *para_end = ME_GetParagraph(editor->pCursors[1].pRun);
 503   if ((*para_end)->member.para.nCharOfs < (*para)->member.para.nCharOfs) {
 504     ME_DisplayItem *tmp = *para;
 505
 506     *para = *para_end;
 507     *para_end = tmp;
 508     pEndCursor = &editor->pCursors[0];
 509   }
 510
 511   /* selection consists of chars from nFrom up to nTo-1 */
 512   if ((*para_end)->member.para.nCharOfs > (*para)->member.para.nCharOfs) {
 513     if (!pEndCursor->nOffset) {
 514       *para_end = ME_GetParagraph(ME_FindItemBack(pEndCursor->pRun, diRun));
 515     }
 516   }
 517 }
 518
 519
 520 BOOL ME_SetSelectionParaFormat(ME_TextEditor *editor, const PARAFORMAT2 *pFmt)
 521 {
 522   ME_DisplayItem *para, *para_end;
 523
 524   ME_GetSelectionParas(editor, &para, &para_end);
 525
 526   do {
 527     ME_SetParaFormat(editor, para, pFmt);
 528     if (para == para_end)
 529       break;
 530     para = para->member.para.next_para;
 531   } while(1);
 532
 533   return TRUE;
 534 }
 535
 536 void ME_GetParaFormat(ME_TextEditor *editor, const ME_DisplayItem *para, PARAFORMAT2 *pFmt)
 537 {
 538   if (pFmt->cbSize >= sizeof(PARAFORMAT2))
 539   {
 540     *pFmt = *para->member.para.pFmt;
 541     return;
 542   }
 543   CopyMemory(pFmt, para->member.para.pFmt, pFmt->cbSize);
 544 }
 545
 546 void ME_GetSelectionParaFormat(ME_TextEditor *editor, PARAFORMAT2 *pFmt)
 547 {
 548   ME_DisplayItem *para, *para_end;
 549   PARAFORMAT2 tmp;
 550
 551   ME_GetSelectionParas(editor, &para, &para_end);
 552
 553   ME_GetParaFormat(editor, para, pFmt);
 554   if (para == para_end) return;
 555
 556   /* Invalidate values that change across the selected paragraphs. */
 557   do {
 558     ZeroMemory(&tmp, sizeof(tmp));
 559     tmp.cbSize = sizeof(tmp);
 560     ME_GetParaFormat(editor, para, &tmp);
 561
 562 #define CHECK_FIELD(m, f) \
 563     if (pFmt->f != tmp.f) pFmt->dwMask &= ~(m);
 564
 565     pFmt->dwMask &= ~((pFmt->wEffects ^ tmp.wEffects) << 16);
 566     CHECK_FIELD(PFM_NUMBERING, wNumbering);
 567     assert(tmp.dwMask & PFM_ALIGNMENT);
 568     CHECK_FIELD(PFM_NUMBERING, wNumbering);
 569     assert(tmp.dwMask & PFM_STARTINDENT);
 570     CHECK_FIELD(PFM_STARTINDENT, dxStartIndent);
 571     assert(tmp.dwMask & PFM_RIGHTINDENT);
 572     CHECK_FIELD(PFM_RIGHTINDENT, dxRightIndent);
 573     assert(tmp.dwMask & PFM_OFFSET);
 574     CHECK_FIELD(PFM_OFFSET, dxOffset);
 575     CHECK_FIELD(PFM_ALIGNMENT, wAlignment);
 576
 577     assert(tmp.dwMask & PFM_TABSTOPS);
 578     if (pFmt->dwMask & PFM_TABSTOPS) {
 579       if (pFmt->cTabCount != tmp.cTabCount ||
 580           memcmp(pFmt->rgxTabs, tmp.rgxTabs, tmp.cTabCount*sizeof(int)))
 581         pFmt->dwMask &= ~PFM_TABSTOPS;
 582     }
 583
 584     CHECK_FIELD(PFM_SPACEBEFORE, dySpaceBefore);
 585     CHECK_FIELD(PFM_SPACEAFTER, dySpaceAfter);
 586     CHECK_FIELD(PFM_LINESPACING, dyLineSpacing);
 587     CHECK_FIELD(PFM_STYLE, sStyle);
 588     CHECK_FIELD(PFM_SPACEAFTER, bLineSpacingRule);
 589     CHECK_FIELD(PFM_SHADING, wShadingWeight);
 590     CHECK_FIELD(PFM_SHADING, wShadingStyle);
 591     CHECK_FIELD(PFM_NUMBERINGSTART, wNumberingStart);
 592     CHECK_FIELD(PFM_NUMBERINGSTYLE, wNumberingStyle);
 593     CHECK_FIELD(PFM_NUMBERINGTAB, wNumberingTab);
 594     CHECK_FIELD(PFM_BORDER, wBorderSpace);
 595     CHECK_FIELD(PFM_BORDER, wBorderWidth);
 596     CHECK_FIELD(PFM_BORDER, wBorders);
 597
 598 #undef CHECK_FIELD
 599
 600     if (para == para_end)
 601       return;
 602     para = para->member.para.next_para;
 603   } while(1);
 604 }
 605
 606 void ME_SetDefaultParaFormat(PARAFORMAT2 *pFmt)
 607 {
 608     ZeroMemory(pFmt, sizeof(PARAFORMAT2));
 609     pFmt->cbSize = sizeof(PARAFORMAT2);
 610     pFmt->dwMask = PFM_ALL2;
 611     pFmt->wAlignment = PFA_LEFT;
 612     pFmt->sStyle = -1;
 613     pFmt->bOutlineLevel = TRUE;
 614 }