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 ME_DisplayItem *make_para(ME_TextEditor *editor)
  27 {
  28     ME_DisplayItem *item = ME_MakeDI(diParagraph);
  29
  30     item->member.para.pFmt = ALLOC_OBJ(PARAFORMAT2);
  31     ME_SetDefaultParaFormat(editor, item->member.para.pFmt);
  32     item->member.para.nFlags = MEPF_REWRAP;
  33     return item;
  34 }
  35
  36 void ME_MakeFirstParagraph(ME_TextEditor *editor)
  37 {
  38   ME_Context c;
  39   CHARFORMAT2W cf;
  40   LOGFONTW lf;
  41   HFONT hf;
  42   ME_TextBuffer *text = editor->pBuffer;
  43   ME_DisplayItem *para = make_para(editor);
  44   ME_DisplayItem *run;
  45   ME_Style *style;
  46   int eol_len;
  47   WCHAR cr_lf[] = {'\r','\n',0};
  48
  49   ME_InitContext(&c, editor, ITextHost_TxGetDC(editor->texthost));
  50
  51   hf = GetStockObject(SYSTEM_FONT);
  52   assert(hf);
  53   GetObjectW(hf, sizeof(LOGFONTW), &lf);
  54   ZeroMemory(&cf, sizeof(cf));
  55   cf.cbSize = sizeof(cf);
  56   cf.dwMask = CFM_BACKCOLOR|CFM_COLOR|CFM_FACE|CFM_SIZE|CFM_CHARSET;
  57   cf.dwMask |= CFM_ALLCAPS|CFM_BOLD|CFM_DISABLED|CFM_EMBOSS|CFM_HIDDEN;
  58   cf.dwMask |= CFM_IMPRINT|CFM_ITALIC|CFM_LINK|CFM_OUTLINE|CFM_PROTECTED;
  59   cf.dwMask |= CFM_REVISED|CFM_SHADOW|CFM_SMALLCAPS|CFM_STRIKEOUT;
  60   cf.dwMask |= CFM_SUBSCRIPT|CFM_UNDERLINETYPE|CFM_WEIGHT;
  61
  62   cf.dwEffects = CFE_AUTOCOLOR | CFE_AUTOBACKCOLOR;
  63   lstrcpyW(cf.szFaceName, lf.lfFaceName);
  64   /* Convert system font height from logical units to twips for cf.yHeight */
  65   cf.yHeight = (lf.lfHeight * 72 * 1440) / (c.dpi.cy * c.dpi.cy);
  66   if (lf.lfWeight > FW_NORMAL) cf.dwEffects |= CFE_BOLD;
  67   cf.wWeight = lf.lfWeight;
  68   if (lf.lfItalic) cf.dwEffects |= CFE_ITALIC;
  69   cf.bUnderlineType = (lf.lfUnderline) ? CFU_CF1UNDERLINE : CFU_UNDERLINENONE;
  70   if (lf.lfStrikeOut) cf.dwEffects |= CFE_STRIKEOUT;
  71   cf.bPitchAndFamily = lf.lfPitchAndFamily;
  72   cf.bCharSet = lf.lfCharSet;
  73
  74   style = ME_MakeStyle(&cf);
  75   text->pDefaultStyle = style;
  76
  77   eol_len = editor->bEmulateVersion10 ? 2 : 1;
  78   para->member.para.text = ME_MakeStringN( cr_lf, eol_len );
  79
  80   run = ME_MakeRun(style, MERF_ENDPARA);
  81   run->member.run.nCharOfs = 0;
  82   run->member.run.len = eol_len;
  83   run->member.run.para = &para->member.para;
  84
  85   ME_InsertBefore(text->pLast, para);
  86   ME_InsertBefore(text->pLast, run);
  87   para->member.para.prev_para = text->pFirst;
  88   para->member.para.next_para = text->pLast;
  89   text->pFirst->member.para.next_para = para;
  90   text->pLast->member.para.prev_para = para;
  91
  92   text->pLast->member.para.nCharOfs = editor->bEmulateVersion10 ? 2 : 1;
  93
  94   ME_DestroyContext(&c);
  95 }
  96
  97 static 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_MarkAllForWrapping(ME_TextEditor *editor)
 107 {
 108   ME_MarkForWrapping(editor, editor->pBuffer->pFirst->member.para.next_para, editor->pBuffer->pLast);
 109 }
 110
 111 static void ME_UpdateTableFlags(ME_DisplayItem *para)
 112 {
 113   para->member.para.pFmt->dwMask |= PFM_TABLE|PFM_TABLEROWDELIMITER;
 114   if (para->member.para.pCell) {
 115     para->member.para.nFlags |= MEPF_CELL;
 116   } else {
 117     para->member.para.nFlags &= ~MEPF_CELL;
 118   }
 119   if (para->member.para.nFlags & MEPF_ROWEND) {
 120     para->member.para.pFmt->wEffects |= PFE_TABLEROWDELIMITER;
 121   } else {
 122     para->member.para.pFmt->wEffects &= ~PFE_TABLEROWDELIMITER;
 123   }
 124   if (para->member.para.nFlags & (MEPF_ROWSTART|MEPF_CELL|MEPF_ROWEND))
 125     para->member.para.pFmt->wEffects |= PFE_TABLE;
 126   else
 127     para->member.para.pFmt->wEffects &= ~PFE_TABLE;
 128 }
 129
 130 static BOOL ME_SetParaFormat(ME_TextEditor *editor, ME_DisplayItem *para, const PARAFORMAT2 *pFmt)
 131 {
 132   PARAFORMAT2 copy;
 133   DWORD dwMask;
 134
 135   assert(para->member.para.pFmt->cbSize == sizeof(PARAFORMAT2));
 136   dwMask = pFmt->dwMask;
 137   if (pFmt->cbSize < sizeof(PARAFORMAT))
 138     return FALSE;
 139   else if (pFmt->cbSize < sizeof(PARAFORMAT2))
 140     dwMask &= PFM_ALL;
 141   else
 142     dwMask &= PFM_ALL2;
 143
 144   add_undo_set_para_fmt( editor, &para->member.para );
 145
 146   copy = *para->member.para.pFmt;
 147
 148 #define COPY_FIELD(m, f) \
 149   if (dwMask & (m)) {                           \
 150     para->member.para.pFmt->dwMask |= m;        \
 151     para->member.para.pFmt->f = pFmt->f;        \
 152   }
 153
 154   COPY_FIELD(PFM_NUMBERING, wNumbering);
 155   COPY_FIELD(PFM_STARTINDENT, dxStartIndent);
 156   if (dwMask & PFM_OFFSETINDENT)
 157     para->member.para.pFmt->dxStartIndent += pFmt->dxStartIndent;
 158   COPY_FIELD(PFM_RIGHTINDENT, dxRightIndent);
 159   COPY_FIELD(PFM_OFFSET, dxOffset);
 160   COPY_FIELD(PFM_ALIGNMENT, wAlignment);
 161   if (dwMask & PFM_TABSTOPS)
 162   {
 163     para->member.para.pFmt->cTabCount = pFmt->cTabCount;
 164     memcpy(para->member.para.pFmt->rgxTabs, pFmt->rgxTabs, pFmt->cTabCount*sizeof(LONG));
 165   }
 166
 167 #define EFFECTS_MASK (PFM_RTLPARA|PFM_KEEP|PFM_KEEPNEXT|PFM_PAGEBREAKBEFORE| \
 168                       PFM_NOLINENUMBER|PFM_NOWIDOWCONTROL|PFM_DONOTHYPHEN|PFM_SIDEBYSIDE| \
 169                       PFM_TABLE)
 170   /* we take for granted that PFE_xxx is the hiword of the corresponding PFM_xxx */
 171   if (dwMask & EFFECTS_MASK)
 172   {
 173     para->member.para.pFmt->dwMask |= dwMask & EFFECTS_MASK;
 174     para->member.para.pFmt->wEffects &= ~HIWORD(dwMask);
 175     para->member.para.pFmt->wEffects |= pFmt->wEffects & HIWORD(dwMask);
 176   }
 177 #undef EFFECTS_MASK
 178
 179   COPY_FIELD(PFM_SPACEBEFORE, dySpaceBefore);
 180   COPY_FIELD(PFM_SPACEAFTER, dySpaceAfter);
 181   COPY_FIELD(PFM_LINESPACING, dyLineSpacing);
 182   COPY_FIELD(PFM_STYLE, sStyle);
 183   COPY_FIELD(PFM_LINESPACING, bLineSpacingRule);
 184   COPY_FIELD(PFM_SHADING, wShadingWeight);
 185   COPY_FIELD(PFM_SHADING, wShadingStyle);
 186   COPY_FIELD(PFM_NUMBERINGSTART, wNumberingStart);
 187   COPY_FIELD(PFM_NUMBERINGSTYLE, wNumberingStyle);
 188   COPY_FIELD(PFM_NUMBERINGTAB, wNumberingTab);
 189   COPY_FIELD(PFM_BORDER, wBorderSpace);
 190   COPY_FIELD(PFM_BORDER, wBorderWidth);
 191   COPY_FIELD(PFM_BORDER, wBorders);
 192
 193   para->member.para.pFmt->dwMask |= dwMask;
 194 #undef COPY_FIELD
 195
 196   if (memcmp(&copy, para->member.para.pFmt, sizeof(PARAFORMAT2)))
 197     para->member.para.nFlags |= MEPF_REWRAP;
 198
 199   return TRUE;
 200 }
 201
 202 /* split paragraph at the beginning of the run */
 203 ME_DisplayItem *ME_SplitParagraph(ME_TextEditor *editor, ME_DisplayItem *run,
 204                                   ME_Style *style, const WCHAR *eol_str, int eol_len,
 205                                   int paraFlags)
 206 {
 207   ME_DisplayItem *next_para = NULL;
 208   ME_DisplayItem *run_para = NULL;
 209   ME_DisplayItem *new_para = make_para(editor);
 210   ME_DisplayItem *end_run;
 211   int ofs, i;
 212   ME_DisplayItem *pp;
 213   int run_flags = MERF_ENDPARA;
 214
 215   if (!editor->bEmulateVersion10) { /* v4.1 */
 216     /* At most 1 of MEPF_CELL, MEPF_ROWSTART, or MEPF_ROWEND should be set. */
 217     assert(!(paraFlags & ~(MEPF_CELL|MEPF_ROWSTART|MEPF_ROWEND)));
 218     assert(!(paraFlags & (paraFlags-1)));
 219     if (paraFlags == MEPF_CELL)
 220       run_flags |= MERF_ENDCELL;
 221     else if (paraFlags == MEPF_ROWSTART)
 222       run_flags |= MERF_TABLESTART|MERF_HIDDEN;
 223   } else { /* v1.0 - v3.0 */
 224     assert(!(paraFlags & (MEPF_CELL|MEPF_ROWSTART|MEPF_ROWEND)));
 225   }
 226   assert(run->type == diRun);
 227   run_para = ME_GetParagraph(run);
 228   assert(run_para->member.para.pFmt->cbSize == sizeof(PARAFORMAT2));
 229
 230   new_para->member.para.text = ME_VSplitString( run_para->member.para.text, run->member.run.nCharOfs );
 231
 232   end_run = ME_MakeRun(style, run_flags);
 233   ofs = end_run->member.run.nCharOfs = run->member.run.nCharOfs;
 234   end_run->member.run.len = eol_len;
 235   end_run->member.run.para = run->member.run.para;
 236   ME_AppendString( run_para->member.para.text, eol_str, eol_len );
 237   next_para = run_para->member.para.next_para;
 238   assert(next_para == ME_FindItemFwd(run_para, diParagraphOrEnd));
 239
 240   add_undo_join_paras( editor, run_para->member.para.nCharOfs + ofs );
 241
 242   /* Update selection cursors to point to the correct paragraph. */
 243   for (i = 0; i < editor->nCursors; i++) {
 244     if (editor->pCursors[i].pPara == run_para &&
 245         run->member.run.nCharOfs <= editor->pCursors[i].pRun->member.run.nCharOfs)
 246     {
 247       editor->pCursors[i].pPara = new_para;
 248     }
 249   }
 250
 251   /* the new paragraph will have a different starting offset, so let's update its runs */
 252   pp = run;
 253   while(pp->type == diRun) {
 254     pp->member.run.nCharOfs -= ofs;
 255     pp->member.run.para = &new_para->member.para;
 256     pp = ME_FindItemFwd(pp, diRunOrParagraphOrEnd);
 257   }
 258   new_para->member.para.nCharOfs = run_para->member.para.nCharOfs + ofs;
 259   new_para->member.para.nCharOfs += eol_len;
 260   new_para->member.para.nFlags = MEPF_REWRAP;
 261
 262   /* FIXME initialize format style and call ME_SetParaFormat blah blah */
 263   *new_para->member.para.pFmt = *run_para->member.para.pFmt;
 264   new_para->member.para.border = run_para->member.para.border;
 265
 266   /* insert paragraph into paragraph double linked list */
 267   new_para->member.para.prev_para = run_para;
 268   new_para->member.para.next_para = next_para;
 269   run_para->member.para.next_para = new_para;
 270   next_para->member.para.prev_para = new_para;
 271
 272   /* insert end run of the old paragraph, and new paragraph, into DI double linked list */
 273   ME_InsertBefore(run, new_para);
 274   ME_InsertBefore(new_para, end_run);
 275
 276   if (!editor->bEmulateVersion10) { /* v4.1 */
 277     if (paraFlags & (MEPF_ROWSTART|MEPF_CELL))
 278     {
 279       ME_DisplayItem *cell = ME_MakeDI(diCell);
 280       ME_InsertBefore(new_para, cell);
 281       new_para->member.para.pCell = cell;
 282       cell->member.cell.next_cell = NULL;
 283       if (paraFlags & MEPF_ROWSTART)
 284       {
 285         run_para->member.para.nFlags |= MEPF_ROWSTART;
 286         cell->member.cell.prev_cell = NULL;
 287         cell->member.cell.parent_cell = run_para->member.para.pCell;
 288         if (run_para->member.para.pCell)
 289           cell->member.cell.nNestingLevel = run_para->member.para.pCell->member.cell.nNestingLevel + 1;
 290         else
 291           cell->member.cell.nNestingLevel = 1;
 292       } else {
 293         cell->member.cell.prev_cell = run_para->member.para.pCell;
 294         assert(cell->member.cell.prev_cell);
 295         cell->member.cell.prev_cell->member.cell.next_cell = cell;
 296         assert(run_para->member.para.nFlags & MEPF_CELL);
 297         assert(!(run_para->member.para.nFlags & MEPF_ROWSTART));
 298         cell->member.cell.nNestingLevel = cell->member.cell.prev_cell->member.cell.nNestingLevel;
 299         cell->member.cell.parent_cell = cell->member.cell.prev_cell->member.cell.parent_cell;
 300       }
 301     } else if (paraFlags & MEPF_ROWEND) {
 302       run_para->member.para.nFlags |= MEPF_ROWEND;
 303       run_para->member.para.pCell = run_para->member.para.pCell->member.cell.parent_cell;
 304       new_para->member.para.pCell = run_para->member.para.pCell;
 305       assert(run_para->member.para.prev_para->member.para.nFlags & MEPF_CELL);
 306       assert(!(run_para->member.para.prev_para->member.para.nFlags & MEPF_ROWSTART));
 307       if (new_para->member.para.pCell != new_para->member.para.next_para->member.para.pCell
 308           && new_para->member.para.next_para->member.para.pCell
 309           && !new_para->member.para.next_para->member.para.pCell->member.cell.prev_cell)
 310       {
 311         /* Row starts just after the row that was ended. */
 312         new_para->member.para.nFlags |= MEPF_ROWSTART;
 313       }
 314     } else {
 315       new_para->member.para.pCell = run_para->member.para.pCell;
 316     }
 317     ME_UpdateTableFlags(run_para);
 318     ME_UpdateTableFlags(new_para);
 319   }
 320
 321   /* force rewrap of the */
 322   run_para->member.para.prev_para->member.para.nFlags |= MEPF_REWRAP;
 323   new_para->member.para.prev_para->member.para.nFlags |= MEPF_REWRAP;
 324
 325   /* we've added the end run, so we need to modify nCharOfs in the next paragraphs */
 326   ME_PropagateCharOffset(next_para, eol_len);
 327   editor->nParagraphs++;
 328
 329   return new_para;
 330 }
 331
 332 /* join tp with tp->member.para.next_para, keeping tp's style; this
 333  * is consistent with the original */
 334 ME_DisplayItem *ME_JoinParagraphs(ME_TextEditor *editor, ME_DisplayItem *tp,
 335                                   BOOL keepFirstParaFormat)
 336 {
 337   ME_DisplayItem *pNext, *pFirstRunInNext, *pRun, *pTmp, *pCell = NULL;
 338   int i, shift;
 339   int end_len;
 340   CHARFORMAT2W fmt;
 341   ME_Cursor startCur, endCur;
 342   ME_String *eol_str;
 343
 344   assert(tp->type == diParagraph);
 345   assert(tp->member.para.next_para);
 346   assert(tp->member.para.next_para->type == diParagraph);
 347
 348   pNext = tp->member.para.next_para;
 349
 350   /* Need to locate end-of-paragraph run here, in order to know end_len */
 351   pRun = ME_FindItemBack(pNext, diRunOrParagraph);
 352
 353   assert(pRun);
 354   assert(pRun->type == diRun);
 355   assert(pRun->member.run.nFlags & MERF_ENDPARA);
 356
 357   end_len = pRun->member.run.len;
 358   eol_str = ME_VSplitString( tp->member.para.text, pRun->member.run.nCharOfs );
 359   ME_AppendString( tp->member.para.text, pNext->member.para.text->szData, pNext->member.para.text->nLen );
 360
 361   /* null char format operation to store the original char format for the ENDPARA run */
 362   ME_InitCharFormat2W(&fmt);
 363   endCur.pPara = pNext;
 364   endCur.pRun = ME_FindItemFwd(pNext, diRun);
 365   endCur.nOffset = 0;
 366   startCur = endCur;
 367   ME_PrevRun(&startCur.pPara, &startCur.pRun);
 368   ME_SetCharFormat(editor, &startCur, &endCur, &fmt);
 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     for (pTmp = pRun->next; pTmp != pNext; pTmp = pTmp->next)
 378     {
 379       if (pTmp->type == diCell)
 380       {
 381         pCell = pTmp;
 382         break;
 383       }
 384     }
 385   }
 386
 387   add_undo_split_para( editor, &pNext->member.para, eol_str, pCell ? &pCell->member.cell : NULL );
 388
 389   if (pCell)
 390   {
 391     ME_Remove( pCell );
 392     if (pCell->member.cell.prev_cell)
 393       pCell->member.cell.prev_cell->member.cell.next_cell = pCell->member.cell.next_cell;
 394     if (pCell->member.cell.next_cell)
 395       pCell->member.cell.next_cell->member.cell.prev_cell = pCell->member.cell.prev_cell;
 396     ME_DestroyDisplayItem( pCell );
 397   }
 398
 399   if (!keepFirstParaFormat)
 400   {
 401     add_undo_set_para_fmt( editor, &tp->member.para );
 402     *tp->member.para.pFmt = *pNext->member.para.pFmt;
 403     tp->member.para.border = pNext->member.para.border;
 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_run( &pTmp->member.run ), shift, pTmp->member.run.nCharOfs);
 429     pTmp->member.run.nCharOfs += shift;
 430     pTmp->member.run.para = &tp->member.para;
 431   } while(1);
 432
 433   ME_Remove(pRun);
 434   ME_DestroyDisplayItem(pRun);
 435
 436   if (editor->pLastSelStartPara == pNext)
 437     editor->pLastSelStartPara = tp;
 438   if (editor->pLastSelEndPara == pNext)
 439     editor->pLastSelEndPara = tp;
 440
 441   tp->member.para.next_para = pNext->member.para.next_para;
 442   pNext->member.para.next_para->member.para.prev_para = tp;
 443   ME_Remove(pNext);
 444   ME_DestroyDisplayItem(pNext);
 445
 446   ME_PropagateCharOffset(tp->member.para.next_para, -end_len);
 447
 448   ME_CheckCharOffsets(editor);
 449
 450   editor->nParagraphs--;
 451   tp->member.para.nFlags |= MEPF_REWRAP;
 452   return tp;
 453 }
 454
 455 ME_DisplayItem *ME_GetParagraph(ME_DisplayItem *item) {
 456   return ME_FindItemBackOrHere(item, diParagraph);
 457 }
 458
 459 void ME_DumpParaStyleToBuf(const PARAFORMAT2 *pFmt, char buf[2048])
 460 {
 461   char *p;
 462   p = buf;
 463
 464 #define DUMP(mask, name, fmt, field) \
 465   if (pFmt->dwMask & (mask)) p += sprintf(p, "%-22s" fmt "\n", name, pFmt->field); \
 466   else p += sprintf(p, "%-22sN/A\n", name);
 467
 468 /* we take for granted that PFE_xxx is the hiword of the corresponding PFM_xxx */
 469 #define DUMP_EFFECT(mask, name) \
 470   p += sprintf(p, "%-22s%s\n", name, (pFmt->dwMask & (mask)) ? ((pFmt->wEffects & ((mask) >> 16)) ? "yes" : "no") : "N/A");
 471
 472   DUMP(PFM_NUMBERING,      "Numbering:",         "%u", wNumbering);
 473   DUMP_EFFECT(PFM_DONOTHYPHEN,     "Disable auto-hyphen:");
 474   DUMP_EFFECT(PFM_KEEP,            "No page break in para:");
 475   DUMP_EFFECT(PFM_KEEPNEXT,        "No page break in para & next:");
 476   DUMP_EFFECT(PFM_NOLINENUMBER,    "No line number:");
 477   DUMP_EFFECT(PFM_NOWIDOWCONTROL,  "No widow & orphan:");
 478   DUMP_EFFECT(PFM_PAGEBREAKBEFORE, "Page break before:");
 479   DUMP_EFFECT(PFM_RTLPARA,         "RTL para:");
 480   DUMP_EFFECT(PFM_SIDEBYSIDE,      "Side by side:");
 481   DUMP_EFFECT(PFM_TABLE,           "Table:");
 482   DUMP(PFM_OFFSETINDENT,   "Offset indent:",     "%d", dxStartIndent);
 483   DUMP(PFM_STARTINDENT,    "Start indent:",      "%d", dxStartIndent);
 484   DUMP(PFM_RIGHTINDENT,    "Right indent:",      "%d", dxRightIndent);
 485   DUMP(PFM_OFFSET,         "Offset:",            "%d", dxOffset);
 486   if (pFmt->dwMask & PFM_ALIGNMENT) {
 487     switch (pFmt->wAlignment) {
 488     case PFA_LEFT   : p += sprintf(p, "Alignment:            left\n"); break;
 489     case PFA_RIGHT  : p += sprintf(p, "Alignment:            right\n"); break;
 490     case PFA_CENTER : p += sprintf(p, "Alignment:            center\n"); break;
 491     case PFA_JUSTIFY: p += sprintf(p, "Alignment:            justify\n"); break;
 492     default         : p += sprintf(p, "Alignment:            incorrect %d\n", pFmt->wAlignment); break;
 493     }
 494   }
 495   else p += sprintf(p, "Alignment:            N/A\n");
 496   DUMP(PFM_TABSTOPS,       "Tab Stops:",         "%d", cTabCount);
 497   if (pFmt->dwMask & PFM_TABSTOPS) {
 498     int i;
 499     p += sprintf(p, "\t");
 500     for (i = 0; i < pFmt->cTabCount; i++) p += sprintf(p, "%x ", pFmt->rgxTabs[i]);
 501     p += sprintf(p, "\n");
 502   }
 503   DUMP(PFM_SPACEBEFORE,    "Space Before:",      "%d", dySpaceBefore);
 504   DUMP(PFM_SPACEAFTER,     "Space After:",       "%d", dySpaceAfter);
 505   DUMP(PFM_LINESPACING,    "Line spacing:",      "%d", dyLineSpacing);
 506   DUMP(PFM_STYLE,          "Text style:",        "%d", sStyle);
 507   DUMP(PFM_LINESPACING,    "Line spacing rule:", "%u", bLineSpacingRule);
 508   /* bOutlineLevel should be 0 */
 509   DUMP(PFM_SHADING,        "Shading Weigth:",    "%u", wShadingWeight);
 510   DUMP(PFM_SHADING,        "Shading Style:",     "%u", wShadingStyle);
 511   DUMP(PFM_NUMBERINGSTART, "Numbering Start:",   "%u", wNumberingStart);
 512   DUMP(PFM_NUMBERINGSTYLE, "Numbering Style:",   "0x%x", wNumberingStyle);
 513   DUMP(PFM_NUMBERINGTAB,   "Numbering Tab:",     "%u", wNumberingStyle);
 514   DUMP(PFM_BORDER,         "Border Space:",      "%u", wBorderSpace);
 515   DUMP(PFM_BORDER,         "Border Width:",      "%u", wBorderWidth);
 516   DUMP(PFM_BORDER,         "Borders:",           "%u", wBorders);
 517
 518 #undef DUMP
 519 #undef DUMP_EFFECT
 520 }
 521
 522 void
 523 ME_GetSelectionParas(ME_TextEditor *editor, ME_DisplayItem **para, ME_DisplayItem **para_end)
 524 {
 525   ME_Cursor *pEndCursor = &editor->pCursors[1];
 526
 527   *para = editor->pCursors[0].pPara;
 528   *para_end = editor->pCursors[1].pPara;
 529   if (*para == *para_end)
 530     return;
 531
 532   if ((*para_end)->member.para.nCharOfs < (*para)->member.para.nCharOfs) {
 533     ME_DisplayItem *tmp = *para;
 534
 535     *para = *para_end;
 536     *para_end = tmp;
 537     pEndCursor = &editor->pCursors[0];
 538   }
 539
 540   /* The paragraph at the end of a non-empty selection isn't included
 541    * if the selection ends at the start of the paragraph. */
 542   if (!pEndCursor->pRun->member.run.nCharOfs && !pEndCursor->nOffset)
 543     *para_end = (*para_end)->member.para.prev_para;
 544 }
 545
 546
 547 BOOL ME_SetSelectionParaFormat(ME_TextEditor *editor, const PARAFORMAT2 *pFmt)
 548 {
 549   ME_DisplayItem *para, *para_end;
 550
 551   ME_GetSelectionParas(editor, &para, &para_end);
 552
 553   do {
 554     ME_SetParaFormat(editor, para, pFmt);
 555     if (para == para_end)
 556       break;
 557     para = para->member.para.next_para;
 558   } while(1);
 559
 560   return TRUE;
 561 }
 562
 563 static void ME_GetParaFormat(ME_TextEditor *editor,
 564                              const ME_DisplayItem *para,
 565                              PARAFORMAT2 *pFmt)
 566 {
 567   UINT cbSize = pFmt->cbSize;
 568   if (pFmt->cbSize >= sizeof(PARAFORMAT2)) {
 569     *pFmt = *para->member.para.pFmt;
 570   } else {
 571     CopyMemory(pFmt, para->member.para.pFmt, pFmt->cbSize);
 572     pFmt->dwMask &= PFM_ALL;
 573   }
 574   pFmt->cbSize = cbSize;
 575 }
 576
 577 void ME_GetSelectionParaFormat(ME_TextEditor *editor, PARAFORMAT2 *pFmt)
 578 {
 579   ME_DisplayItem *para, *para_end;
 580   PARAFORMAT2 *curFmt;
 581
 582   if (pFmt->cbSize < sizeof(PARAFORMAT)) {
 583     pFmt->dwMask = 0;
 584     return;
 585   }
 586
 587   ME_GetSelectionParas(editor, &para, &para_end);
 588
 589   ME_GetParaFormat(editor, para, pFmt);
 590
 591   /* Invalidate values that change across the selected paragraphs. */
 592   while (para != para_end)
 593   {
 594     para = para->member.para.next_para;
 595     curFmt = para->member.para.pFmt;
 596
 597 #define CHECK_FIELD(m, f) \
 598     if (pFmt->f != curFmt->f) pFmt->dwMask &= ~(m);
 599
 600     CHECK_FIELD(PFM_NUMBERING, wNumbering);
 601     CHECK_FIELD(PFM_STARTINDENT, dxStartIndent);
 602     CHECK_FIELD(PFM_RIGHTINDENT, dxRightIndent);
 603     CHECK_FIELD(PFM_OFFSET, dxOffset);
 604     CHECK_FIELD(PFM_ALIGNMENT, wAlignment);
 605     if (pFmt->dwMask & PFM_TABSTOPS) {
 606       if (pFmt->cTabCount != para->member.para.pFmt->cTabCount ||
 607           memcmp(pFmt->rgxTabs, curFmt->rgxTabs, curFmt->cTabCount*sizeof(int)))
 608         pFmt->dwMask &= ~PFM_TABSTOPS;
 609     }
 610
 611     if (pFmt->dwMask >= sizeof(PARAFORMAT2))
 612     {
 613       pFmt->dwMask &= ~((pFmt->wEffects ^ curFmt->wEffects) << 16);
 614       CHECK_FIELD(PFM_SPACEBEFORE, dySpaceBefore);
 615       CHECK_FIELD(PFM_SPACEAFTER, dySpaceAfter);
 616       CHECK_FIELD(PFM_LINESPACING, dyLineSpacing);
 617       CHECK_FIELD(PFM_STYLE, sStyle);
 618       CHECK_FIELD(PFM_SPACEAFTER, bLineSpacingRule);
 619       CHECK_FIELD(PFM_SHADING, wShadingWeight);
 620       CHECK_FIELD(PFM_SHADING, wShadingStyle);
 621       CHECK_FIELD(PFM_NUMBERINGSTART, wNumberingStart);
 622       CHECK_FIELD(PFM_NUMBERINGSTYLE, wNumberingStyle);
 623       CHECK_FIELD(PFM_NUMBERINGTAB, wNumberingTab);
 624       CHECK_FIELD(PFM_BORDER, wBorderSpace);
 625       CHECK_FIELD(PFM_BORDER, wBorderWidth);
 626       CHECK_FIELD(PFM_BORDER, wBorders);
 627     }
 628 #undef CHECK_FIELD
 629   }
 630 }
 631
 632 void ME_SetDefaultParaFormat(ME_TextEditor *editor, PARAFORMAT2 *pFmt)
 633 {
 634     ZeroMemory(pFmt, sizeof(PARAFORMAT2));
 635     pFmt->cbSize = sizeof(PARAFORMAT2);
 636     pFmt->dwMask = PFM_ALL2;
 637     pFmt->wAlignment = editor->alignStyle;
 638     pFmt->sStyle = -1;
 639     pFmt->bOutlineLevel = TRUE;
 640 }