programs/progman/grpfile.c

   1 /*
   2  * Program Manager
   3  *
   4  * Copyright 1996 Ulrich Schmid
   5  *           1997 Peter Schlaile
   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 #define WIN32_LEAN_AND_MEAN
  23
  24 #include "windows.h"
  25 #include "progman.h"
  26 #include "mmsystem.h"
  27
  28 #define MALLOCHUNK 1000
  29
  30 #define GET_USHORT(buffer, i)\
  31   (((BYTE)((buffer)[(i)]) + 0x100 * (BYTE)((buffer)[(i)+1])))
  32 #define GET_SHORT(buffer, i)\
  33   (((BYTE)((buffer)[(i)]) + 0x100 * (signed char)((buffer)[(i)+1])))
  34 #define PUT_SHORT(buffer, i, s)\
  35   (((buffer)[(i)] = (s) & 0xff, (buffer)[(i)+1] = ((s) >> 8) & 0xff))
  36
  37 static BOOL   GRPFILE_ReadFileToBuffer(LPCSTR, HLOCAL*, INT*);
  38 static HLOCAL GRPFILE_ScanGroup(LPCSTR, INT, LPCSTR, BOOL);
  39 static HLOCAL GRPFILE_ScanProgram(LPCSTR, INT, LPCSTR, INT,
  40                                   LPCSTR, HLOCAL,LPCSTR);
  41 static BOOL GRPFILE_DoWriteGroupFile(HFILE file, PROGGROUP *group);
  42
  43 /***********************************************************************
  44  *
  45  *           GRPFILE_ModifyFileName
  46  *
  47  *  Change extension `.grp' to `.gr'
  48  */
  49
  50 static VOID GRPFILE_ModifyFileName(LPSTR lpszNewName, LPCSTR lpszOrigName,
  51                                    INT nSize, BOOL bModify)
  52 {
  53   lstrcpyn(lpszNewName, lpszOrigName, nSize);
  54   lpszNewName[nSize-1] = '\0';
  55   if (!bModify) return;
  56   if (!lstrcmpi(lpszNewName + strlen(lpszNewName) - 4, ".grp"))
  57     lpszNewName[strlen(lpszNewName) - 1] = '\0';
  58 }
  59
  60 /***********************************************************************
  61  *
  62  *           GRPFILE_ReadGroupFile
  63  */
  64
  65 HLOCAL GRPFILE_ReadGroupFile(LPCSTR lpszPath)
  66 {
  67   CHAR   szPath_gr[MAX_PATHNAME_LEN];
  68   BOOL   bFileNameModified = FALSE;
  69   OFSTRUCT dummy;
  70   HLOCAL hBuffer, hGroup;
  71   INT    size;
  72
  73   /* if `.gr' file exists use that */
  74   GRPFILE_ModifyFileName(szPath_gr, lpszPath, MAX_PATHNAME_LEN, TRUE);
  75   if (OpenFile(szPath_gr, &dummy, OF_EXIST) != HFILE_ERROR)
  76     {
  77       lpszPath = szPath_gr;
  78       bFileNameModified = TRUE;
  79     }
  80
  81   /* Read the whole file into a buffer */
  82   if (!GRPFILE_ReadFileToBuffer(lpszPath, &hBuffer, &size))
  83     {
  84       MAIN_MessageBoxIDS_s(IDS_GRPFILE_READ_ERROR_s, lpszPath, IDS_ERROR, MB_YESNO);
  85       return(0);
  86     }
  87
  88   /* Interpret buffer */
  89   hGroup = GRPFILE_ScanGroup(LocalLock(hBuffer), size,
  90                              lpszPath, bFileNameModified);
  91   if (!hGroup)
  92     MAIN_MessageBoxIDS_s(IDS_GRPFILE_READ_ERROR_s, lpszPath, IDS_ERROR, MB_YESNO);
  93
  94   LocalFree(hBuffer);
  95
  96   return(hGroup);
  97 }
  98
  99 /***********************************************************************
 100  *
 101  *           GRPFILE_ReadFileToBuffer
 102  */
 103
 104 static BOOL GRPFILE_ReadFileToBuffer(LPCSTR path, HLOCAL *phBuffer,
 105                                      INT *piSize)
 106 {
 107   UINT    len, size;
 108   LPSTR  buffer;
 109   HLOCAL hBuffer, hNewBuffer;
 110   HFILE  file;
 111
 112   file=_lopen(path, OF_READ);
 113   if (file == HFILE_ERROR) return FALSE;
 114
 115   size = 0;
 116   hBuffer = LocalAlloc(LMEM_FIXED, size + MALLOCHUNK + 1);
 117   if (!hBuffer) return FALSE;
 118   buffer = LocalLock(hBuffer);
 119
 120   while ((len = _lread(file, buffer + size, MALLOCHUNK))
 121          == MALLOCHUNK)
 122     {
 123       size += len;
 124       hNewBuffer = LocalReAlloc(hBuffer, size + MALLOCHUNK + 1,
 125                                 LMEM_FIXED);
 126       if (!hNewBuffer)
 127         {
 128           LocalFree(hBuffer);
 129           return FALSE;
 130         }
 131       hBuffer = hNewBuffer;
 132       buffer = LocalLock(hBuffer);
 133     }
 134
 135   _lclose(file);
 136
 137   if (len == (UINT)HFILE_ERROR)
 138     {
 139       LocalFree(hBuffer);
 140       return FALSE;
 141     }
 142
 143   size += len;
 144   buffer[size] = 0;
 145
 146   *phBuffer = hBuffer;
 147   *piSize   = size;
 148   return TRUE;
 149 }
 150
 151 /***********************************************************************
 152  *           GRPFILE_ScanGroup
 153  */
 154
 155 static HLOCAL GRPFILE_ScanGroup(LPCSTR buffer, INT size,
 156                                 LPCSTR lpszGrpFile,
 157                                 BOOL bModifiedFileName)
 158 {
 159   HLOCAL  hGroup;
 160   INT     i, seqnum;
 161   LPCSTR  extension;
 162   LPCSTR  lpszName;
 163   INT     x, y, width, height, iconx, icony, nCmdShow;
 164   INT     number_of_programs;
 165   BOOL    bOverwriteFileOk;
 166
 167   if (buffer[0] != 'P' || buffer[1] != 'M') return(0);
 168   if (buffer[2] == 'C' && buffer[3] == 'C')
 169     /* original with checksum */
 170     bOverwriteFileOk = FALSE;
 171   else if (buffer[2] == 'X' && buffer[3] == 'X')
 172     /* modified without checksum */
 173     bOverwriteFileOk = TRUE;
 174   else return(0);
 175
 176   /* checksum = GET_USHORT(buffer, 4)   (ignored) */
 177
 178   extension = buffer + GET_USHORT(buffer, 6);
 179   if (extension == buffer + size) extension = 0;
 180   else if (extension + 6 > buffer + size) return(0);
 181
 182   nCmdShow = GET_USHORT(buffer,  8);
 183   x        = GET_SHORT(buffer,  10);
 184   y        = GET_SHORT(buffer,  12);
 185   width    = GET_USHORT(buffer, 14);
 186   height   = GET_USHORT(buffer, 16);
 187   iconx    = GET_SHORT(buffer,  18);
 188   icony    = GET_SHORT(buffer,  20);
 189   lpszName = buffer + GET_USHORT(buffer, 22);
 190   if (lpszName >= buffer + size) return(0);
 191
 192   /* unknown bytes 24 - 31 ignored */
 193   /*
 194     Unknown bytes should be:
 195     wLogPixelsX = GET_SHORT(buffer, 24);
 196     wLogPixelsY = GET_SHORT(buffer, 26);
 197     byBitsPerPixel = byte at 28;
 198     byPlanes     = byte at 29;
 199     wReserved   = GET_SHORT(buffer, 30);
 200     */
 201
 202   hGroup = GROUP_AddGroup(lpszName, lpszGrpFile, nCmdShow, x, y,
 203                           width, height, iconx, icony,
 204                           bModifiedFileName, bOverwriteFileOk,
 205                           TRUE);
 206   if (!hGroup) return(0);
 207
 208   number_of_programs = GET_USHORT(buffer, 32);
 209   if (2 * number_of_programs + 34 > size) return(0);
 210   for (i=0, seqnum=0; i < number_of_programs; i++, seqnum++)
 211     {
 212       LPCSTR program_ptr = buffer + GET_USHORT(buffer, 34 + 2*i);
 213       if (program_ptr + 24 > buffer + size) return(0);
 214       if (!GET_USHORT(buffer, 34 + 2*i)) continue;
 215       if (!GRPFILE_ScanProgram(buffer, size, program_ptr, seqnum,
 216                                extension, hGroup, lpszGrpFile))
 217         {
 218           GROUP_DeleteGroup(hGroup);
 219           return(0);
 220         }
 221     }
 222
 223   /* FIXME shouldn't be necessary */
 224   GROUP_ShowGroupWindow(hGroup);
 225
 226   return hGroup;
 227 }
 228
 229 /***********************************************************************
 230  *           GRPFILE_ScanProgram
 231  */
 232
 233 static HLOCAL GRPFILE_ScanProgram(LPCSTR buffer, INT size,
 234                                   LPCSTR program_ptr, INT seqnum,
 235                                   LPCSTR extension, HLOCAL hGroup,
 236                                   LPCSTR lpszGrpFile)
 237 {
 238   INT    icontype;
 239   HICON  hIcon;
 240   LPCSTR lpszName, lpszCmdLine, lpszIconFile, lpszWorkDir;
 241   LPCSTR iconinfo_ptr, iconANDbits_ptr, iconXORbits_ptr;
 242   INT    x, y, nIconIndex, iconANDsize, iconXORsize;
 243   INT    nHotKey, nCmdShow;
 244   UINT width, height, planes, bpp;
 245
 246   x               = GET_SHORT(program_ptr, 0);
 247   y               = GET_SHORT(program_ptr, 2);
 248   nIconIndex      = GET_USHORT(program_ptr, 4);
 249
 250   /* FIXME is this correct ?? */
 251   icontype = GET_USHORT(program_ptr,  6);
 252   switch (icontype)
 253     {
 254     default:
 255       MAIN_MessageBoxIDS_s(IDS_UNKNOWN_FEATURE_s, lpszGrpFile,
 256                            IDS_WARNING, MB_OK);
 257     case 0x048c:
 258       iconXORsize     = GET_USHORT(program_ptr,  8);
 259       iconANDsize     = GET_USHORT(program_ptr, 10) / 8;
 260       iconinfo_ptr    = buffer + GET_USHORT(program_ptr, 12);
 261       iconXORbits_ptr = buffer + GET_USHORT(program_ptr, 14);
 262       iconANDbits_ptr = buffer + GET_USHORT(program_ptr, 16);
 263       width           = GET_USHORT(iconinfo_ptr, 4);
 264       height          = GET_USHORT(iconinfo_ptr, 6);
 265       planes          = GET_USHORT(iconinfo_ptr, 10);
 266       bpp             = GET_USHORT(iconinfo_ptr, 11);
 267       break;
 268     case 0x000c:
 269       iconANDsize     = GET_USHORT(program_ptr,  8);
 270       iconXORsize     = GET_USHORT(program_ptr, 10);
 271       iconinfo_ptr    = buffer + GET_USHORT(program_ptr, 12);
 272       iconANDbits_ptr = buffer + GET_USHORT(program_ptr, 14);
 273       iconXORbits_ptr = buffer + GET_USHORT(program_ptr, 16);
 274       width           = GET_USHORT(iconinfo_ptr, 4);
 275       height          = GET_USHORT(iconinfo_ptr, 6);
 276       planes          = GET_USHORT(iconinfo_ptr, 10);
 277       bpp             = GET_USHORT(iconinfo_ptr, 11);
 278     }
 279
 280   if (iconANDbits_ptr + iconANDsize > buffer + size ||
 281       iconXORbits_ptr + iconXORsize > buffer + size) return(0);
 282
 283   hIcon = CreateIcon( Globals.hInstance, width, height, planes, bpp, iconANDbits_ptr, iconXORbits_ptr );
 284
 285   lpszName        = buffer + GET_USHORT(program_ptr, 18);
 286   lpszCmdLine     = buffer + GET_USHORT(program_ptr, 20);
 287   lpszIconFile    = buffer + GET_USHORT(program_ptr, 22);
 288   if (iconinfo_ptr + 6 > buffer + size ||
 289       lpszName         > buffer + size ||
 290       lpszCmdLine      > buffer + size ||
 291       lpszIconFile     > buffer + size) return(0);
 292
 293   /* Scan Extensions */
 294   lpszWorkDir = "";
 295   nHotKey     = 0;
 296   nCmdShow    = SW_SHOWNORMAL;
 297   if (extension)
 298     {
 299       LPCSTR ptr = extension;
 300       while (ptr + 6 <= buffer + size)
 301         {
 302           UINT type   = GET_USHORT(ptr, 0);
 303           UINT number = GET_USHORT(ptr, 2);
 304           UINT skip   = GET_USHORT(ptr, 4);
 305
 306           if (number == seqnum)
 307             {
 308               switch (type)
 309                 {
 310                 case 0x8000:
 311                   if (ptr + 10 > buffer + size) return(0);
 312                   if (ptr[6] != 'P' || ptr[7] != 'M' ||
 313                       ptr[8] != 'C' || ptr[9] != 'C') return(0);
 314                   break;
 315                 case 0x8101:
 316                   lpszWorkDir = ptr + 6;
 317                   break;
 318                 case 0x8102:
 319                   if (ptr + 8 > buffer + size) return(0);
 320                   nHotKey = GET_USHORT(ptr, 6);
 321                   break;
 322                 case 0x8103:
 323                   if (ptr + 8 > buffer + size) return(0);
 324                   nCmdShow = GET_USHORT(ptr, 6);
 325                   break;
 326                 default:
 327                   MAIN_MessageBoxIDS_s(IDS_UNKNOWN_FEATURE_s,
 328                                        lpszGrpFile, IDS_WARNING, MB_OK);
 329                 }
 330             }
 331           if (!skip) break;
 332           ptr += skip;
 333         }
 334     }
 335
 336   return (PROGRAM_AddProgram(hGroup, hIcon, lpszName, x, y,
 337                              lpszCmdLine, lpszIconFile,
 338                              nIconIndex, lpszWorkDir,
 339                              nHotKey, nCmdShow));
 340 }
 341
 342 /***********************************************************************
 343  *
 344  *           GRPFILE_WriteGroupFile
 345  */
 346
 347 BOOL GRPFILE_WriteGroupFile(HLOCAL hGroup)
 348 {
 349   CHAR szPath[MAX_PATHNAME_LEN];
 350   PROGGROUP *group = LocalLock(hGroup);
 351   OFSTRUCT dummy;
 352   HFILE file;
 353   BOOL ret;
 354
 355   GRPFILE_ModifyFileName(szPath, LocalLock(group->hGrpFile),
 356                          MAX_PATHNAME_LEN,
 357                          group->bFileNameModified);
 358
 359   /* Try not to overwrite original files */
 360
 361   /* group->bOverwriteFileOk == TRUE only if a file has the modified format */
 362   if (!group->bOverwriteFileOk &&
 363       OpenFile(szPath, &dummy, OF_EXIST) != HFILE_ERROR)
 364     {
 365       /* Original file exists, try `.gr' extension */
 366       GRPFILE_ModifyFileName(szPath, LocalLock(group->hGrpFile),
 367                              MAX_PATHNAME_LEN, TRUE);
 368       if (OpenFile(szPath, &dummy, OF_EXIST) != HFILE_ERROR)
 369         {
 370           /* File exists. Do not overwrite */
 371           MAIN_MessageBoxIDS_s(IDS_FILE_NOT_OVERWRITTEN_s, szPath,
 372                                IDS_INFO, MB_OK);
 373           return FALSE;
 374         }
 375       /* Inform about the modified file name */
 376       if (IDCANCEL ==
 377           MAIN_MessageBoxIDS_s(IDS_SAVE_GROUP_AS_s, szPath, IDS_INFO,
 378                                MB_OKCANCEL | MB_ICONINFORMATION))
 379         return FALSE;
 380     }
 381
 382   {
 383     /* Warn about the (possible) incompatibility */
 384     CHAR msg[MAX_PATHNAME_LEN + 200];
 385     wsprintf(msg,
 386              "Group files written by this DRAFT Program Manager "
 387              "possibly cannot be read by the Microsoft Program Manager!!\n"
 388              "Are you sure to write %s?", szPath);
 389     if (IDOK != MessageBox(Globals.hMainWnd, msg, "WARNING",
 390                            MB_OKCANCEL | MB_DEFBUTTON2)) return FALSE;
 391   }
 392
 393   /* Open file */
 394   file = _lcreat(szPath, 0);
 395   if (file != HFILE_ERROR)
 396     {
 397       ret = GRPFILE_DoWriteGroupFile(file, group);
 398       _lclose(file);
 399     }
 400   else ret = FALSE;
 401
 402   if (!ret)
 403     MAIN_MessageBoxIDS_s(IDS_FILE_WRITE_ERROR_s, szPath, IDS_ERROR, MB_OK);
 404
 405   return(ret);
 406 }
 407
 408 /***********************************************************************
 409  *
 410  *           GRPFILE_CalculateSizes
 411  */
 412
 413 static VOID GRPFILE_CalculateSizes(PROGRAM *program, INT *Progs, INT *Icons,
 414                                    UINT *sizeAnd, UINT *sizeXor)
 415 {
 416   ICONINFO info;
 417   BITMAP bmp;
 418
 419   GetIconInfo( program->hIcon, &info );
 420   GetObjectW( info.hbmMask, sizeof(bmp), &bmp );
 421   *sizeAnd = bmp.bmHeight * ((bmp.bmWidth + 15) / 16 * 2);
 422   GetObjectW( info.hbmColor, sizeof(bmp), &bmp );
 423   *sizeXor = bmp.bmHeight * bmp.bmWidthBytes;
 424   DeleteObject( info.hbmMask );
 425   DeleteObject( info.hbmColor );
 426
 427   *Progs += 24;
 428   *Progs += lstrlen(LocalLock(program->hName)) + 1;
 429   *Progs += lstrlen(LocalLock(program->hCmdLine)) + 1;
 430   *Progs += lstrlen(LocalLock(program->hIconFile)) + 1;
 431
 432   *Icons += 12; /* IconInfo */
 433   *Icons += *sizeAnd;
 434   *Icons += *sizeXor;
 435 }
 436
 437 /***********************************************************************/
 438 UINT16 GRPFILE_checksum;
 439 BOOL GRPFILE_checksum_half_word;
 440 BYTE GRPFILE_checksum_last_byte;
 441 /***********************************************************************
 442  *
 443  *           GRPFILE_InitChecksum
 444  */
 445
 446 static void GRPFILE_InitChecksum(void)
 447 {
 448         GRPFILE_checksum = 0;
 449         GRPFILE_checksum_half_word = 0;
 450 }
 451
 452 /***********************************************************************
 453  *
 454  *           GRPFILE_GetChecksum
 455  */
 456
 457 static UINT16 GRPFILE_GetChecksum(void)
 458 {
 459         return GRPFILE_checksum;
 460 }
 461
 462 /***********************************************************************
 463  *
 464  *           GRPFILE_WriteWithChecksum
 465  *
 466  * Looks crazier than it is:
 467  *
 468  * chksum = 0;
 469  * chksum = cksum - 1. word;
 470  * chksum = cksum - 2. word;
 471  * ...
 472  *
 473  * if (filelen is even)
 474  *      great I'm finished
 475  * else
 476  *      ignore last byte
 477  */
 478
 479 static UINT GRPFILE_WriteWithChecksum(HFILE file, LPCSTR str, UINT size)
 480 {
 481         UINT i;
 482         if (GRPFILE_checksum_half_word) {
 483                 GRPFILE_checksum -= GRPFILE_checksum_last_byte;
 484         }
 485         for (i=0; i < size; i++) {
 486                 if (GRPFILE_checksum_half_word) {
 487                         GRPFILE_checksum -= str[i] << 8;
 488                 } else {
 489                         GRPFILE_checksum -= str[i];
 490                 }
 491                 GRPFILE_checksum_half_word ^= 1;
 492         }
 493
 494         if (GRPFILE_checksum_half_word) {
 495                 GRPFILE_checksum_last_byte = str[size-1];
 496                 GRPFILE_checksum += GRPFILE_checksum_last_byte;
 497         }
 498
 499         return _lwrite(file, str, size);
 500 }
 501
 502
 503 /***********************************************************************
 504  *
 505  *           GRPFILE_DoWriteGroupFile
 506  */
 507
 508 static BOOL GRPFILE_DoWriteGroupFile(HFILE file, PROGGROUP *group)
 509 {
 510   CHAR buffer[34];
 511   HLOCAL hProgram;
 512   INT    NumProg, Title, Progs, Icons, Extension;
 513   INT    CurrProg, CurrIcon, nCmdShow, ptr, seqnum;
 514   DWORD  sizeAnd, sizeXor;
 515   BOOL   need_extension;
 516   LPCSTR lpszTitle = LocalLock(group->hName);
 517
 518   UINT16 checksum;
 519
 520   GRPFILE_InitChecksum();
 521
 522   /* Calculate offsets */
 523   NumProg = 0;
 524   Icons   = 0;
 525   Extension = 0;
 526   need_extension = FALSE;
 527   hProgram = group->hPrograms;
 528   while(hProgram)
 529     {
 530       PROGRAM *program = LocalLock(hProgram);
 531       LPCSTR lpszWorkDir = LocalLock(program->hWorkDir);
 532
 533       NumProg++;
 534       GRPFILE_CalculateSizes(program, &Icons, &Extension, &sizeAnd, &sizeXor);
 535
 536       /* Set a flag if an extension is needed */
 537       if (lpszWorkDir[0] || program->nHotKey ||
 538           program->nCmdShow != SW_SHOWNORMAL) need_extension = TRUE;
 539
 540       hProgram = program->hNext;
 541     }
 542   Title      = 34 + NumProg * 2;
 543   Progs      = Title + lstrlen(lpszTitle) + 1;
 544   Icons     += Progs;
 545   Extension += Icons;
 546
 547   /* Header */
 548   buffer[0] = 'P';
 549   buffer[1] = 'M';
 550   buffer[2] = 'C';
 551   buffer[3] = 'C';
 552
 553   PUT_SHORT(buffer,  4, 0); /* Checksum zero for now, written later */
 554   PUT_SHORT(buffer,  6, Extension);
 555   /* Update group->nCmdShow */
 556   if (IsIconic(group->hWnd))      nCmdShow = SW_SHOWMINIMIZED;
 557   else if (IsZoomed(group->hWnd)) nCmdShow = SW_SHOWMAXIMIZED;
 558   else                            nCmdShow = SW_SHOWNORMAL;
 559   PUT_SHORT(buffer,  8, nCmdShow);
 560   PUT_SHORT(buffer, 10, group->x);
 561   PUT_SHORT(buffer, 12, group->y);
 562   PUT_SHORT(buffer, 14, group->width);
 563   PUT_SHORT(buffer, 16, group->height);
 564   PUT_SHORT(buffer, 18, group->iconx);
 565   PUT_SHORT(buffer, 20, group->icony);
 566   PUT_SHORT(buffer, 22, Title);
 567   PUT_SHORT(buffer, 24, 0x0020); /* unknown */
 568   PUT_SHORT(buffer, 26, 0x0020); /* unknown */
 569   PUT_SHORT(buffer, 28, 0x0108); /* unknown */
 570   PUT_SHORT(buffer, 30, 0x0000); /* unknown */
 571   PUT_SHORT(buffer, 32, NumProg);
 572
 573   if ((UINT)HFILE_ERROR == GRPFILE_WriteWithChecksum(file, buffer, 34)) return FALSE;
 574
 575   /* Program table */
 576   CurrProg = Progs;
 577   CurrIcon = Icons;
 578   hProgram = group->hPrograms;
 579   while(hProgram)
 580     {
 581       PROGRAM *program = LocalLock(hProgram);
 582
 583       PUT_SHORT(buffer, 0, CurrProg);
 584       if ((UINT)HFILE_ERROR == GRPFILE_WriteWithChecksum(file, buffer, 2))
 585               return FALSE;
 586
 587       GRPFILE_CalculateSizes(program, &CurrProg, &CurrIcon, &sizeAnd, &sizeXor);
 588       hProgram = program->hNext;
 589     }
 590
 591   /* Title */
 592   if ((UINT)HFILE_ERROR == GRPFILE_WriteWithChecksum(file, lpszTitle,
 593                                                lstrlen(lpszTitle) + 1))
 594     return FALSE;
 595
 596   /* Program entries */
 597   CurrProg = Progs;
 598   CurrIcon = Icons;
 599   hProgram = group->hPrograms;
 600   while(hProgram)
 601     {
 602       PROGRAM *program = LocalLock(hProgram);
 603       LPCSTR Name     = LocalLock(program->hName);
 604       LPCSTR CmdLine  = LocalLock(program->hCmdLine);
 605       LPCSTR IconFile = LocalLock(program->hIconFile);
 606       INT next_prog = CurrProg;
 607       INT next_icon = CurrIcon;
 608
 609       GRPFILE_CalculateSizes(program, &next_prog, &next_icon, &sizeAnd, &sizeXor);
 610       PUT_SHORT(buffer,  0, program->x);
 611       PUT_SHORT(buffer,  2, program->y);
 612       PUT_SHORT(buffer,  4, program->nIconIndex);
 613       PUT_SHORT(buffer,  6, 0x048c);            /* unknown */
 614       PUT_SHORT(buffer,  8, sizeXor);
 615       PUT_SHORT(buffer, 10, sizeAnd * 8);
 616       PUT_SHORT(buffer, 12, CurrIcon);
 617       PUT_SHORT(buffer, 14, CurrIcon + 12 + sizeAnd);
 618       PUT_SHORT(buffer, 16, CurrIcon + 12);
 619       ptr = CurrProg + 24;
 620       PUT_SHORT(buffer, 18, ptr);
 621       ptr += lstrlen(Name) + 1;
 622       PUT_SHORT(buffer, 20, ptr);
 623       ptr += lstrlen(CmdLine) + 1;
 624       PUT_SHORT(buffer, 22, ptr);
 625
 626       if ((UINT)HFILE_ERROR == GRPFILE_WriteWithChecksum(file, buffer, 24) ||
 627           (UINT)HFILE_ERROR == GRPFILE_WriteWithChecksum(file, Name, lstrlen(Name) + 1) ||
 628           (UINT)HFILE_ERROR == GRPFILE_WriteWithChecksum(file, CmdLine, lstrlen(CmdLine) + 1) ||
 629           (UINT)HFILE_ERROR == GRPFILE_WriteWithChecksum(file, IconFile, lstrlen(IconFile) + 1))
 630         return FALSE;
 631
 632       CurrProg = next_prog;
 633       CurrIcon = next_icon;
 634       hProgram = program->hNext;
 635     }
 636
 637   /* Icons */
 638 #if 0  /* FIXME: this is broken anyway */
 639   hProgram = group->hPrograms;
 640   while(hProgram)
 641     {
 642       PROGRAM *program = LocalLock(hProgram);
 643       CURSORICONINFO *iconinfo = LocalLock(program->hIcon);
 644       LPVOID XorBits, AndBits;
 645       INT sizeXor = iconinfo->nHeight * iconinfo->nWidthBytes;
 646       INT sizeAnd = iconinfo->nHeight * ((iconinfo->nWidth + 15) / 16 * 2);
 647       /* DumpIcon16(LocalLock(program->hIcon), 0, &XorBits, &AndBits);*/
 648
 649       PUT_SHORT(buffer, 0, iconinfo->ptHotSpot.x);
 650       PUT_SHORT(buffer, 2, iconinfo->ptHotSpot.y);
 651       PUT_SHORT(buffer, 4, iconinfo->nWidth);
 652       PUT_SHORT(buffer, 6, iconinfo->nHeight);
 653       PUT_SHORT(buffer, 8, iconinfo->nWidthBytes);
 654       buffer[10] = iconinfo->bPlanes;
 655       buffer[11] = iconinfo->bBitsPerPixel;
 656
 657       if ((UINT)HFILE_ERROR == GRPFILE_WriteWithChecksum(file, buffer, 12) ||
 658           (UINT)HFILE_ERROR == GRPFILE_WriteWithChecksum(file, AndBits, sizeAnd) ||
 659           (UINT)HFILE_ERROR == GRPFILE_WriteWithChecksum(file, XorBits, sizeXor)) return FALSE;
 660
 661       hProgram = program->hNext;
 662     }
 663 #endif
 664
 665   if (need_extension)
 666     {
 667       /* write `PMCC' extension */
 668       PUT_SHORT(buffer, 0, 0x8000);
 669       PUT_SHORT(buffer, 2, 0xffff);
 670       PUT_SHORT(buffer, 4, 0x000a);
 671       buffer[6] = 'P', buffer[7] = 'M';
 672       buffer[8] = 'C', buffer[9] = 'C';
 673       if ((UINT)HFILE_ERROR == GRPFILE_WriteWithChecksum(file, buffer, 10))
 674               return FALSE;
 675
 676       seqnum = 0;
 677       hProgram = group->hPrograms;
 678       while(hProgram)
 679         {
 680           PROGRAM *program = LocalLock(hProgram);
 681           LPCSTR lpszWorkDir = LocalLock(program->hWorkDir);
 682
 683           /* Working directory */
 684           if (lpszWorkDir[0])
 685             {
 686               PUT_SHORT(buffer, 0, 0x8101);
 687               PUT_SHORT(buffer, 2, seqnum);
 688               PUT_SHORT(buffer, 4, 7 + lstrlen(lpszWorkDir));
 689               if ((UINT)HFILE_ERROR == GRPFILE_WriteWithChecksum(file, buffer, 6) ||
 690                   (UINT)HFILE_ERROR == GRPFILE_WriteWithChecksum(file, lpszWorkDir, lstrlen(lpszWorkDir) + 1))
 691                 return FALSE;
 692             }
 693
 694           /* Hot key */
 695           if (program->nHotKey)
 696             {
 697               PUT_SHORT(buffer, 0, 0x8102);
 698               PUT_SHORT(buffer, 2, seqnum);
 699               PUT_SHORT(buffer, 4, 8);
 700               PUT_SHORT(buffer, 6, program->nHotKey);
 701               if ((UINT)HFILE_ERROR == GRPFILE_WriteWithChecksum(file, buffer, 8)) return FALSE;
 702             }
 703
 704           /* Show command */
 705           if (program->nCmdShow)
 706             {
 707               PUT_SHORT(buffer, 0, 0x8103);
 708               PUT_SHORT(buffer, 2, seqnum);
 709               PUT_SHORT(buffer, 4, 8);
 710               PUT_SHORT(buffer, 6, program->nCmdShow);
 711               if ((UINT)HFILE_ERROR == GRPFILE_WriteWithChecksum(file, buffer, 8)) return FALSE;
 712             }
 713
 714           seqnum++;
 715           hProgram = program->hNext;
 716         }
 717
 718       /* Write `End' extension */
 719       PUT_SHORT(buffer, 0, 0xffff);
 720       PUT_SHORT(buffer, 2, 0xffff);
 721       PUT_SHORT(buffer, 4, 0x0000);
 722       if ((UINT)HFILE_ERROR == GRPFILE_WriteWithChecksum(file, buffer, 6)) return FALSE;
 723     }
 724
 725   checksum = GRPFILE_GetChecksum();
 726   _llseek(file, 4, SEEK_SET);
 727   PUT_SHORT(buffer, 0, checksum);
 728   _lwrite(file, buffer, 2);
 729
 730   return TRUE;
 731 }
 732
 733 /* Local Variables:    */
 734 /* c-file-style: "GNU" */
 735 /* End:                */