dlls/shell32/iconcache.c

   1 /*
   2  *      shell icon cache (SIC)
   3  *
   4  * FIXME
   5  *  since dll geting never unloaded the iconcache will never be freed
   6  */
   7 #include <string.h>
   8 #include "wine/winuser16.h"
   9 #include "wine/winbase16.h"
  10 #include "neexe.h"
  11 #include "cursoricon.h"
  12 #include "module.h"
  13 #include "heap.h"
  14 #include "debug.h"
  15 #include "sysmetrics.h"
  16 #include "winversion.h"
  17 #include "shell.h"
  18 #include "shlobj.h"
  19 #include "pidl.h"
  20 #include "shell32_main.h"
  21
  22 #pragma pack(1)
  23
  24 typedef struct
  25 {
  26     BYTE        bWidth;          /* Width, in pixels, of the image      */
  27     BYTE        bHeight;         /* Height, in pixels, of the image     */
  28     BYTE        bColorCount;     /* Number of colors in image (0 if >=8bpp) */
  29     BYTE        bReserved;       /* Reserved ( must be 0)               */
  30     WORD        wPlanes;         /* Color Planes                        */
  31     WORD        wBitCount;       /* Bits per pixel                      */
  32     DWORD       dwBytesInRes;    /* How many bytes in this resource?    */
  33     DWORD       dwImageOffset;   /* Where in the file is this image?    */
  34 } icoICONDIRENTRY, *LPicoICONDIRENTRY;
  35
  36 typedef struct
  37 {
  38     WORD            idReserved;   /* Reserved (must be 0)               */
  39     WORD            idType;       /* Resource Type (1 for icons)        */
  40     WORD            idCount;      /* How many images?                   */
  41     icoICONDIRENTRY idEntries[1]; /* An entry for each image (idCount of 'em) */
  42 } icoICONDIR, *LPicoICONDIR;
  43
  44 #pragma pack(4)
  45
  46 /*************************************************************************
  47  *                              SHELL_GetResourceTable
  48  */
  49 static DWORD SHELL_GetResourceTable(HFILE hFile,LPBYTE *retptr)
  50 {       IMAGE_DOS_HEADER        mz_header;
  51         char                    magic[4];
  52         int                     size;
  53
  54         TRACE(shell,"\n");
  55
  56         *retptr = NULL;
  57         _llseek( hFile, 0, SEEK_SET );
  58         if ((_lread(hFile,&mz_header,sizeof(mz_header)) != sizeof(mz_header)) || (mz_header.e_magic != IMAGE_DOS_SIGNATURE))
  59         { if (mz_header.e_cblp == 1)    /* .ICO file ? */
  60           { *retptr = (LPBYTE)-1;       /* ICONHEADER.idType, must be 1 */
  61             return 1;
  62           }
  63           else
  64             return 0; /* failed */
  65         }
  66         _llseek( hFile, mz_header.e_lfanew, SEEK_SET );
  67
  68         if (_lread( hFile, magic, sizeof(magic) ) != sizeof(magic))
  69           return 0;
  70
  71         _llseek( hFile, mz_header.e_lfanew, SEEK_SET);
  72
  73         if (*(DWORD*)magic  == IMAGE_NT_SIGNATURE)
  74           return IMAGE_NT_SIGNATURE;
  75
  76         if (*(WORD*)magic == IMAGE_OS2_SIGNATURE)
  77         { IMAGE_OS2_HEADER      ne_header;
  78           LPBYTE                pTypeInfo = (LPBYTE)-1;
  79
  80           if (_lread(hFile,&ne_header,sizeof(ne_header))!=sizeof(ne_header))
  81             return 0;
  82
  83           if (ne_header.ne_magic != IMAGE_OS2_SIGNATURE)
  84             return 0;
  85
  86           size = ne_header.rname_tab_offset - ne_header.resource_tab_offset;
  87
  88           if( size > sizeof(NE_TYPEINFO) )
  89           { pTypeInfo = (BYTE*)HeapAlloc( GetProcessHeap(), 0, size);
  90             if( pTypeInfo )
  91             { _llseek(hFile, mz_header.e_lfanew+ne_header.resource_tab_offset, SEEK_SET);
  92               if( _lread( hFile, (char*)pTypeInfo, size) != size )
  93               { HeapFree( GetProcessHeap(), 0, pTypeInfo);
  94                 pTypeInfo = NULL;
  95               }
  96             }
  97           }
  98           *retptr = pTypeInfo;
  99           return IMAGE_OS2_SIGNATURE;
 100         }
 101         return 0; /* failed */
 102 }
 103 /*************************************************************************
 104  *                      SHELL_LoadResource
 105  */
 106 static HGLOBAL16 SHELL_LoadResource(HINSTANCE hInst, HFILE hFile, NE_NAMEINFO* pNInfo, WORD sizeShift)
 107 {       BYTE*  ptr;
 108         HGLOBAL16 handle = DirectResAlloc16( hInst, 0x10, (DWORD)pNInfo->length << sizeShift);
 109
 110         TRACE(shell,"\n");
 111
 112         if( (ptr = (BYTE*)GlobalLock16( handle )) )
 113         { _llseek( hFile, (DWORD)pNInfo->offset << sizeShift, SEEK_SET);
 114           _lread( hFile, (char*)ptr, pNInfo->length << sizeShift);
 115           return handle;
 116         }
 117         return 0;
 118 }
 119
 120 /*************************************************************************
 121  *                      ICO_LoadIcon
 122  */
 123 static HGLOBAL16 ICO_LoadIcon(HINSTANCE hInst, HFILE hFile, LPicoICONDIRENTRY lpiIDE)
 124 {       BYTE*  ptr;
 125         HGLOBAL16 handle = DirectResAlloc16( hInst, 0x10, lpiIDE->dwBytesInRes);
 126         TRACE(shell,"\n");
 127         if( (ptr = (BYTE*)GlobalLock16( handle )) )
 128         { _llseek( hFile, lpiIDE->dwImageOffset, SEEK_SET);
 129           _lread( hFile, (char*)ptr, lpiIDE->dwBytesInRes);
 130           return handle;
 131         }
 132         return 0;
 133 }
 134
 135 /*************************************************************************
 136  *                      ICO_GetIconDirectory
 137  *
 138  *  Read .ico file and build phony ICONDIR struct for GetIconID
 139  */
 140 static HGLOBAL16 ICO_GetIconDirectory(HINSTANCE hInst, HFILE hFile, LPicoICONDIR* lplpiID )
 141 {       WORD    id[3];  /* idReserved, idType, idCount */
 142         LPicoICONDIR    lpiID;
 143         int             i;
 144
 145         TRACE(shell,"\n");
 146         _llseek( hFile, 0, SEEK_SET );
 147         if( _lread(hFile,(char*)id,sizeof(id)) != sizeof(id) )
 148           return 0;
 149
 150         /* check .ICO header
 151         *
 152         * - see http://www.microsoft.com/win32dev/ui/icons.htm
 153         */
 154
 155         if( id[0] || id[1] != 1 || !id[2] )
 156           return 0;
 157
 158         i = id[2]*sizeof(icoICONDIRENTRY) + sizeof(id);
 159
 160         lpiID = (LPicoICONDIR)HeapAlloc( GetProcessHeap(), 0, i);
 161
 162         if( _lread(hFile,(char*)lpiID->idEntries,i) == i )
 163         { HGLOBAL16 handle = DirectResAlloc16( hInst, 0x10,id[2]*sizeof(ICONDIRENTRY) + sizeof(id) );
 164           if( handle )
 165           { CURSORICONDIR*     lpID = (CURSORICONDIR*)GlobalLock16( handle );
 166             lpID->idReserved = lpiID->idReserved = id[0];
 167             lpID->idType = lpiID->idType = id[1];
 168             lpID->idCount = lpiID->idCount = id[2];
 169             for( i=0; i < lpiID->idCount; i++ )
 170             { memcpy((void*)(lpID->idEntries + i),(void*)(lpiID->idEntries + i), sizeof(ICONDIRENTRY) - 2);
 171               lpID->idEntries[i].icon.wResId = i;
 172             }
 173             *lplpiID = lpiID;
 174             return handle;
 175           }
 176         }
 177         /* fail */
 178
 179         HeapFree( GetProcessHeap(), 0, lpiID);
 180         return 0;
 181 }
 182
 183 /*************************************************************************
 184  *                      InternalExtractIcon             [SHELL.39]
 185  *
 186  * This abortion is called directly by Progman
 187  *  fixme: the icon section is broken (don't have a handle for
 188  *    ICO_GetIconDirectory....)
 189  *
 190  */
 191 #define ICO_INVALID_FILE        1
 192 #define ICO_NO_ICONS            0
 193
 194 HGLOBAL WINAPI ICO_ExtractIconEx(LPCSTR lpszExeFileName, HICON * RetPtr, UINT nIconIndex, UINT n, UINT cxDesired, UINT cyDesired )
 195 {       HGLOBAL hRet = ICO_NO_ICONS;
 196         LPBYTE          pData;
 197         OFSTRUCT        ofs;
 198         DWORD           sig;
 199         HFILE           hFile = OpenFile( lpszExeFileName, &ofs, OF_READ );
 200         UINT16          iconDirCount = 0,iconCount = 0;
 201         LPBYTE          peimage;
 202         HANDLE  fmapping;
 203
 204         TRACE(shell,"(file %s,start %d,extract %d\n", lpszExeFileName, nIconIndex, n);
 205
 206         if( hFile == HFILE_ERROR || !n )
 207           return ICO_INVALID_FILE;
 208
 209         sig = SHELL_GetResourceTable(hFile,&pData);
 210
 211 /* ico file */
 212         if( sig==IMAGE_OS2_SIGNATURE || sig==1 ) /* .ICO file */
 213         { HICON16       hIcon = 0;
 214           NE_TYPEINFO*  pTInfo = (NE_TYPEINFO*)(pData + 2);
 215           NE_NAMEINFO*  pIconStorage = NULL;
 216           NE_NAMEINFO*  pIconDir = NULL;
 217           LPicoICONDIR  lpiID = NULL;
 218
 219           if( pData == (BYTE*)-1 )
 220           { hIcon = ICO_GetIconDirectory(0, hFile, &lpiID);     /* check for .ICO file */
 221             if( hIcon )
 222             { iconDirCount = 1; iconCount = lpiID->idCount;
 223             }
 224           }
 225           else while( pTInfo->type_id && !(pIconStorage && pIconDir) )
 226           { if( pTInfo->type_id == NE_RSCTYPE_GROUP_ICON )      /* find icon directory and icon repository */
 227             { iconDirCount = pTInfo->count;
 228               pIconDir = ((NE_NAMEINFO*)(pTInfo + 1));
 229               TRACE(shell,"\tfound directory - %i icon families\n", iconDirCount);
 230             }
 231             if( pTInfo->type_id == NE_RSCTYPE_ICON )
 232             { iconCount = pTInfo->count;
 233               pIconStorage = ((NE_NAMEINFO*)(pTInfo + 1));
 234               TRACE(shell,"\ttotal icons - %i\n", iconCount);
 235             }
 236             pTInfo = (NE_TYPEINFO *)((char*)(pTInfo+1)+pTInfo->count*sizeof(NE_NAMEINFO));
 237           }
 238
 239           if( (pIconStorage && pIconDir) || lpiID )       /* load resources and create icons */
 240           { if( nIconIndex == (UINT16)-1 )
 241             { RetPtr[0] = iconDirCount;
 242             }
 243             else if( nIconIndex < iconDirCount )
 244             { UINT16   i, icon;
 245               if( n > iconDirCount - nIconIndex )
 246                 n = iconDirCount - nIconIndex;
 247
 248               for( i = nIconIndex; i < nIconIndex + n; i++ )
 249               { /* .ICO files have only one icon directory */
 250
 251                 if( lpiID == NULL )
 252                   hIcon = SHELL_LoadResource( 0, hFile, pIconDir + i, *(WORD*)pData );
 253                 RetPtr[i-nIconIndex] = GetIconID16( hIcon, 3 );
 254                 GlobalFree16(hIcon);
 255               }
 256
 257               for( icon = nIconIndex; icon < nIconIndex + n; icon++ )
 258               { hIcon = 0;
 259                 if( lpiID )
 260                 { hIcon = ICO_LoadIcon( 0, hFile, lpiID->idEntries + RetPtr[icon-nIconIndex]);
 261                 }
 262                 else
 263                 { for( i = 0; i < iconCount; i++ )
 264                   { if( pIconStorage[i].id == (RetPtr[icon-nIconIndex] | 0x8000) )
 265                     { hIcon = SHELL_LoadResource( 0, hFile, pIconStorage + i,*(WORD*)pData );
 266                     }
 267                   }
 268                 }
 269                 if( hIcon )
 270                 { RetPtr[icon-nIconIndex] = LoadIconHandler16( hIcon, TRUE );
 271                 }
 272                 else
 273                 { RetPtr[icon-nIconIndex] = 0;
 274                 }
 275               }
 276             }
 277           }
 278           if( lpiID )
 279             HeapFree( GetProcessHeap(), 0, lpiID);
 280           else
 281             HeapFree( GetProcessHeap(), 0, pData);
 282         }
 283 /* end ico file */
 284
 285 /* exe/dll */
 286         if( sig == IMAGE_NT_SIGNATURE)
 287         { LPBYTE                idata,igdata;
 288           PIMAGE_DOS_HEADER     dheader;
 289           PIMAGE_NT_HEADERS     pe_header;
 290           PIMAGE_SECTION_HEADER pe_sections;
 291           PIMAGE_RESOURCE_DIRECTORY     rootresdir,iconresdir,icongroupresdir;
 292           PIMAGE_RESOURCE_DATA_ENTRY    idataent,igdataent;
 293           PIMAGE_RESOURCE_DIRECTORY_ENTRY       xresent;
 294           int                   i,j;
 295
 296           if ( !(fmapping = CreateFileMappingA(hFile,NULL,PAGE_READONLY|SEC_COMMIT,0,0,NULL)))
 297           { WARN(shell,"failed to create filemap.\n");  /* FIXME, INVALID_HANDLE_VALUE? */
 298             hRet = ICO_INVALID_FILE;
 299             goto end_2;         /* failure */
 300           }
 301
 302           if ( !(peimage = MapViewOfFile(fmapping,FILE_MAP_READ,0,0,0)))
 303           { WARN(shell,"failed to mmap filemap.\n");
 304             hRet = ICO_INVALID_FILE;
 305             goto end_2;         /* failure */
 306           }
 307
 308           dheader = (PIMAGE_DOS_HEADER)peimage;
 309           pe_header = (PIMAGE_NT_HEADERS)(peimage+dheader->e_lfanew);     /* it is a pe header, SHELL_GetResourceTable checked that */
 310           pe_sections = (PIMAGE_SECTION_HEADER)(((char*)pe_header)+sizeof(*pe_header)); /* probably makes problems with short PE headers...*/
 311           rootresdir = NULL;
 312
 313           for (i=0;i<pe_header->FileHeader.NumberOfSections;i++)
 314           { if (pe_sections[i].Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA)
 315               continue;
 316             /* FIXME: doesn't work when the resources are not in a seperate section */
 317             if (pe_sections[i].VirtualAddress == pe_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress)
 318             { rootresdir = (PIMAGE_RESOURCE_DIRECTORY)((char*)peimage+pe_sections[i].PointerToRawData);
 319               break;
 320             }
 321           }
 322
 323           if (!rootresdir)
 324           { WARN(shell,"haven't found section for resource directory.\n");
 325             goto end_4;         /* failure */
 326           }
 327   /* search the group icon dir*/
 328           if (!(icongroupresdir = GetResDirEntryW(rootresdir,RT_GROUP_ICONW, (DWORD)rootresdir,FALSE)))
 329           { WARN(shell,"No Icongroupresourcedirectory!\n");
 330             goto end_4;         /* failure */
 331           }
 332           iconDirCount = icongroupresdir->NumberOfNamedEntries+icongroupresdir->NumberOfIdEntries;
 333
 334   /* number of icons requested */
 335           if( nIconIndex == -1 )
 336           { hRet = iconDirCount;
 337             goto end_3;         /* success */
 338           }
 339
 340           if (nIconIndex >= iconDirCount)
 341           { WARN(shell,"nIconIndex %d is larger than iconDirCount %d\n",nIconIndex,iconDirCount);
 342             goto end_4;         /* failure */
 343           }
 344
 345           xresent = (PIMAGE_RESOURCE_DIRECTORY_ENTRY)(icongroupresdir+1);       /* caller just wanted the number of entries */
 346
 347           if( n > iconDirCount - nIconIndex )   /* assure we don't get too much ... */
 348           { n = iconDirCount - nIconIndex;
 349           }
 350
 351           xresent = xresent+nIconIndex;         /* starting from specified index ... */
 352
 353           for (i=0;i<n;i++,xresent++)
 354           { PIMAGE_RESOURCE_DIRECTORY   resdir;
 355
 356             /* go down this resource entry, name */
 357             resdir = (PIMAGE_RESOURCE_DIRECTORY)((DWORD)rootresdir+(xresent->u2.s.OffsetToDirectory));
 358
 359             /* default language (0) */
 360             resdir = GetResDirEntryW(resdir,(LPWSTR)0,(DWORD)rootresdir,TRUE);
 361             igdataent = (PIMAGE_RESOURCE_DATA_ENTRY)resdir;
 362
 363             /* lookup address in mapped image for virtual address */
 364             igdata = NULL;
 365
 366             for (j=0;j<pe_header->FileHeader.NumberOfSections;j++)
 367             { if (igdataent->OffsetToData < pe_sections[j].VirtualAddress)
 368                 continue;
 369               if (igdataent->OffsetToData+igdataent->Size > pe_sections[j].VirtualAddress+pe_sections[j].SizeOfRawData)
 370                 continue;
 371               igdata = peimage+(igdataent->OffsetToData-pe_sections[j].VirtualAddress+pe_sections[j].PointerToRawData);
 372             }
 373
 374             if (!igdata)
 375             { WARN(shell,"no matching real address for icongroup!\n");
 376               goto end_4;       /* failure */
 377             }
 378             RetPtr[i] = (HICON)pLookupIconIdFromDirectoryEx(igdata, TRUE, cxDesired, cyDesired, LR_DEFAULTCOLOR);
 379           }
 380
 381           if (!(iconresdir=GetResDirEntryW(rootresdir,RT_ICONW,(DWORD)rootresdir,FALSE)))
 382           { WARN(shell,"No Iconresourcedirectory!\n");
 383             goto end_4;         /* failure */
 384           }
 385
 386           for (i=0;i<n;i++)
 387           { PIMAGE_RESOURCE_DIRECTORY   xresdir;
 388             xresdir = GetResDirEntryW(iconresdir,(LPWSTR)(DWORD)RetPtr[i],(DWORD)rootresdir,FALSE);
 389             xresdir = GetResDirEntryW(xresdir,(LPWSTR)0,(DWORD)rootresdir,TRUE);
 390             idataent = (PIMAGE_RESOURCE_DATA_ENTRY)xresdir;
 391             idata = NULL;
 392
 393             /* map virtual to address in image */
 394             for (j=0;j<pe_header->FileHeader.NumberOfSections;j++)
 395             { if (idataent->OffsetToData < pe_sections[j].VirtualAddress)
 396                 continue;
 397               if (idataent->OffsetToData+idataent->Size > pe_sections[j].VirtualAddress+pe_sections[j].SizeOfRawData)
 398                 continue;
 399               idata = peimage+(idataent->OffsetToData-pe_sections[j].VirtualAddress+pe_sections[j].PointerToRawData);
 400             }
 401             if (!idata)
 402             { WARN(shell,"no matching real address found for icondata!\n");
 403               RetPtr[i]=0;
 404               continue;
 405             }
 406             RetPtr[i] = (HICON) pCreateIconFromResourceEx(idata,idataent->Size,TRUE,0x00030000, cxDesired, cyDesired, LR_DEFAULTCOLOR);
 407           }
 408           hRet = RetPtr[0];     /* return first icon */
 409           goto end_3;           /* sucess */
 410         }
 411         hRet = ICO_INVALID_FILE;
 412         goto end_1;             /* unknown filetype */
 413
 414 /* cleaning up (try & catch would be nicer:-) ) */
 415 end_4:  hRet = 0;       /* failure */
 416 end_3:  UnmapViewOfFile(peimage);       /* success */
 417 end_2:  CloseHandle(fmapping);
 418 end_1:  _lclose( hFile);
 419         return hRet;
 420 }
 421
 422 /********************** THE ICON CACHE ********************************/
 423 HIMAGELIST ShellSmallIconList = 0;
 424 HIMAGELIST ShellBigIconList = 0;
 425 HDPA    hdpa=0;
 426
 427 #define INVALID_INDEX -1
 428
 429 typedef struct
 430 {       LPCSTR sSourceFile;     /* file icon is from */
 431         DWORD dwSourceIndex;    /* index within the file */
 432         DWORD dwListIndex;      /* index within the iconlist */
 433 } SIC_ENTRY, * LPSIC_ENTRY;
 434
 435 /*****************************************************************************
 436 *       SIC_CompareEntrys [called by comctl32.dll]
 437 * NOTES
 438 *  Callback for DPA_Search
 439 */
 440 INT CALLBACK SIC_CompareEntrys( LPVOID p1, LPVOID p2, LPARAM lparam)
 441 {       TRACE(shell,"%p %p\n", p1, p2);
 442
 443         if (((LPSIC_ENTRY)p1)->dwSourceIndex != ((LPSIC_ENTRY)p2)->dwSourceIndex) /* first the faster one*/
 444           return 1;
 445
 446         if (strcasecmp(((LPSIC_ENTRY)p1)->sSourceFile,((LPSIC_ENTRY)p2)->sSourceFile))
 447           return 1;
 448
 449         return 0;
 450 }
 451 /*****************************************************************************
 452 *       SIC_IconAppend (internal)
 453 * NOTES
 454 *  appends a icon pair to the end of the cache
 455 */
 456 static INT SIC_IconAppend (LPCSTR sSourceFile, INT dwSourceIndex, HICON hSmallIcon, HICON hBigIcon)
 457 {       LPSIC_ENTRY lpsice;
 458         INT index, index1;
 459
 460         TRACE(shell,"%s %i %x %x\n", sSourceFile, dwSourceIndex, hSmallIcon ,hBigIcon);
 461
 462         lpsice = (LPSIC_ENTRY) SHAlloc (sizeof (SIC_ENTRY));
 463
 464         lpsice->sSourceFile = HEAP_strdupA (GetProcessHeap(),0,sSourceFile);
 465         lpsice->dwSourceIndex = dwSourceIndex;
 466
 467         index = pDPA_InsertPtr(hdpa, 0x7fff, lpsice);
 468         if ( INVALID_INDEX == index )
 469         { SHFree(lpsice);
 470           return INVALID_INDEX;
 471         }
 472
 473         index = pImageList_AddIcon (ShellSmallIconList, hSmallIcon);
 474         index1= pImageList_AddIcon (ShellBigIconList, hBigIcon);
 475
 476         if (index!=index1)
 477         { FIXME(shell,"iconlists out of sync 0x%x 0x%x\n", index, index1);
 478         }
 479         lpsice->dwListIndex = index;
 480
 481         return lpsice->dwListIndex;
 482
 483 }
 484 /****************************************************************************
 485 *       SIC_LoadIcon    [internal]
 486 * NOTES
 487 *  gets small/big icon by number from a file
 488 */
 489 static INT SIC_LoadIcon (LPCSTR sSourceFile, INT dwSourceIndex)
 490 {       HICON   hiconLarge=0;
 491         HICON   hiconSmall=0;
 492
 493         ICO_ExtractIconEx(sSourceFile, &hiconLarge, dwSourceIndex, 1, 32, 32  );
 494         ICO_ExtractIconEx(sSourceFile, &hiconSmall, dwSourceIndex, 1, 16, 16  );
 495
 496
 497         if ( !hiconLarge ||  !hiconSmall)
 498         { WARN(shell, "failure loading icon %i from %s (%x %x)\n", dwSourceIndex, sSourceFile, hiconLarge, hiconSmall);
 499           return -1;
 500         }
 501         return SIC_IconAppend (sSourceFile, dwSourceIndex, hiconSmall, hiconLarge);
 502 }
 503 /*****************************************************************************
 504 *       SIC_GetIconIndex [internal]
 505 * NOTES
 506 *  look in the cache for a proper icon. if not available the icon is taken
 507 *  from the file and cached
 508 */
 509 INT SIC_GetIconIndex (LPCSTR sSourceFile, INT dwSourceIndex )
 510 {       SIC_ENTRY sice;
 511         INT index = INVALID_INDEX;
 512
 513         TRACE(shell,"%s %i\n", sSourceFile, dwSourceIndex);
 514
 515         sice.sSourceFile = sSourceFile;
 516         sice.dwSourceIndex = dwSourceIndex;
 517
 518         if (NULL != pDPA_GetPtr (hdpa, 0))
 519         { index = pDPA_Search (hdpa, &sice, -1L, SIC_CompareEntrys, 0, 0);
 520         }
 521
 522         if ( INVALID_INDEX == index )
 523         {  return SIC_LoadIcon (sSourceFile, dwSourceIndex);
 524         }
 525
 526         TRACE(shell, "-- found\n");
 527         return ((LPSIC_ENTRY)pDPA_GetPtr(hdpa, index))->dwListIndex;
 528 }
 529 /****************************************************************************
 530 *       SIC_LoadIcon    [internal]
 531 * NOTES
 532 *  retrives the specified icon from the iconcache. if not found try's to load the icon
 533 */
 534 static HICON SIC_GetIcon (LPCSTR sSourceFile, INT dwSourceIndex, BOOL bSmallIcon )
 535 {       INT index;
 536
 537         TRACE(shell,"%s %i\n", sSourceFile, dwSourceIndex);
 538
 539         index = SIC_GetIconIndex(sSourceFile, dwSourceIndex);
 540         if (INVALID_INDEX == index)
 541         { return INVALID_INDEX;
 542         }
 543
 544         if (bSmallIcon)
 545           return pImageList_GetIcon(ShellSmallIconList, index, ILD_NORMAL);
 546         return pImageList_GetIcon(ShellBigIconList, index, ILD_NORMAL);
 547
 548 }
 549 /*****************************************************************************
 550 *       SIC_Initialize [internal]
 551 * NOTES
 552 *  hack to load the resources from the shell32.dll under a different dll name
 553 *  will be removed when the resource-compiler is ready
 554 */
 555 BOOL SIC_Initialize(void)
 556 {       CHAR            szShellPath[MAX_PATH];
 557         HGLOBAL hSmRet, hLgRet;
 558         HICON           *pSmRet, *pLgRet;
 559         UINT            index;
 560
 561         TRACE(shell,"\n");
 562
 563         if (hdpa)       /* already initialized?*/
 564           return TRUE;
 565
 566         hdpa = pDPA_Create(16);
 567
 568         if (!hdpa)
 569         { return(FALSE);
 570         }
 571
 572         GetSystemDirectoryA(szShellPath,MAX_PATH);
 573         PathAddBackslashA(szShellPath);
 574         strcat(szShellPath,"shell32.dll");
 575
 576         hSmRet = GlobalAlloc( GMEM_FIXED | GMEM_ZEROINIT, sizeof(HICON)*40);
 577         hLgRet = GlobalAlloc( GMEM_FIXED | GMEM_ZEROINIT, sizeof(HICON)*40);
 578
 579         pSmRet = (HICON*)GlobalLock(hSmRet);
 580         pLgRet = (HICON*)GlobalLock(hLgRet);
 581
 582         ExtractIconExA ( szShellPath, 0, pLgRet, pSmRet, 40 );
 583
 584         ShellSmallIconList = pImageList_Create(16,16,ILC_COLORDDB | ILC_MASK,0,0x20);
 585         ShellBigIconList = pImageList_Create(32,32,ILC_COLORDDB | ILC_MASK,0,0x20);
 586
 587         for (index=0; index<40; index++)
 588         { if (! pSmRet[index] )
 589           { MSG("*** failure loading resources from %s\n", szShellPath );
 590             MSG("*** this is a hack for loading the internal and external dll at the same time\n");
 591             MSG("*** you can ignore it but you will miss some icons in win95 dialogs\n\n");
 592             break;
 593           }
 594           SIC_IconAppend (szShellPath, index, pSmRet[index], pLgRet[index]);
 595         }
 596
 597         GlobalUnlock(hLgRet);
 598         GlobalFree(hLgRet);
 599
 600         GlobalUnlock(hSmRet);
 601         GlobalFree(hSmRet);
 602
 603         TRACE(shell,"hIconSmall=%p hIconBig=%p\n",ShellSmallIconList, ShellBigIconList);
 604
 605         return TRUE;
 606 }
 607
 608 /*************************************************************************
 609  * Shell_GetImageList [SHELL32.71]
 610  *
 611  * PARAMETERS
 612  *  imglist[1|2] [OUT] pointer which recive imagelist handles
 613  *
 614  */
 615 DWORD WINAPI Shell_GetImageList(HIMAGELIST * lpBigList, HIMAGELIST * lpSmallList)
 616 {       TRACE(shell,"(%p,%p)\n",lpBigList,lpSmallList);
 617         if (lpBigList)
 618         { *lpBigList = ShellBigIconList;
 619         }
 620         if (lpSmallList)
 621         { *lpSmallList = ShellSmallIconList;
 622         }
 623
 624         return TRUE;
 625 }
 626
 627 /*************************************************************************
 628  * SHMapPIDLToSystemImageListIndex [SHELL32.77]
 629  *
 630  * PARAMETERS
 631  * x  pointer to an instance of IShellFolder
 632  *
 633  * NOTES
 634  *     first hack
 635  *
 636  */
 637 DWORD WINAPI SHMapPIDLToSystemImageListIndex(LPSHELLFOLDER sh,LPITEMIDLIST pidl,DWORD z)
 638 {       char    sTemp[MAX_PATH];
 639         DWORD   dwNr, ret = INVALID_INDEX;
 640         LPITEMIDLIST pidltemp = ILFindLastID(pidl);
 641
 642         WARN(shell,"(SF=%p,pidl=%p,0x%08lx)\n",sh,pidl,z);
 643         pdump(pidl);
 644
 645         if (_ILIsDesktop(pidltemp))
 646         { return 34;
 647         }
 648         else if (_ILIsMyComputer(pidltemp))
 649         { if (HCR_GetDefaultIcon("CLSID\\{20D04FE0-3AEA-1069-A2D8-08002B30309D}", sTemp, MAX_PATH, &dwNr))
 650           { ret = SIC_GetIconIndex(sTemp, dwNr);
 651             return (( INVALID_INDEX == ret) ? 15 : ret);
 652           }
 653         }
 654         else if (_ILIsDrive (pidltemp))
 655         { if (HCR_GetDefaultIcon("Drive", sTemp, MAX_PATH, &dwNr))
 656           { ret = SIC_GetIconIndex(sTemp, dwNr);
 657             return (( INVALID_INDEX == ret) ? 8 : ret);
 658           }
 659         }
 660         else if (_ILIsFolder (pidltemp))
 661         { if (HCR_GetDefaultIcon("Folder", sTemp, MAX_PATH, &dwNr))
 662           { ret = SIC_GetIconIndex(sTemp, dwNr);
 663             return (( INVALID_INDEX == ret) ? 3 : ret);
 664           }
 665         }
 666
 667         if (_ILGetExtension (pidltemp, sTemp, MAX_PATH))                /* object is file */
 668         { if ( HCR_MapTypeToValue(sTemp, sTemp, MAX_PATH))
 669           { if (HCR_GetDefaultIcon(sTemp, sTemp, MAX_PATH, &dwNr))
 670             { if (!strcmp("%1",sTemp))                                  /* icon is in the file */
 671               { _ILGetPidlPath(pidl, sTemp, MAX_PATH);
 672                 dwNr = 0;
 673               }
 674               ret = SIC_GetIconIndex(sTemp, dwNr);
 675             }
 676           }
 677         }
 678         return (( INVALID_INDEX == ret) ? 1 : ret);
 679 }
 680
 681 /*************************************************************************
 682  * Shell_GetCachedImageIndex [SHELL32.72]
 683  *
 684  */
 685 INT WINAPI Shell_GetCachedImageIndexA(LPCSTR szPath, INT nIndex, DWORD z)
 686 {       WARN(shell,"(%s,%08x,%08lx) semi-stub.\n",debugstr_a(szPath),nIndex,z);
 687         return SIC_GetIconIndex(szPath, nIndex);
 688 }
 689
 690 INT WINAPI Shell_GetCachedImageIndexW(LPCWSTR szPath, INT nIndex, DWORD z)
 691 {       INT ret;
 692         LPSTR sTemp = HEAP_strdupWtoA (GetProcessHeap(),0,szPath);
 693
 694         WARN(shell,"(%s,%08x,%08lx) semi-stub.\n",debugstr_w(szPath),nIndex,z);
 695
 696         ret = SIC_GetIconIndex(sTemp, nIndex);
 697         HeapFree(GetProcessHeap(),0,sTemp);
 698         return ret;
 699 }
 700
 701 INT WINAPI Shell_GetCachedImageIndexAW(LPCVOID szPath, INT nIndex, DWORD z)
 702 {       if( VERSION_OsIsUnicode())
 703           return Shell_GetCachedImageIndexW(szPath, nIndex, z);
 704         return Shell_GetCachedImageIndexA(szPath, nIndex, z);
 705 }
 706
 707 /*************************************************************************
 708 *       ExtracticonEx32         [shell32.189]
 709 */
 710 HICON WINAPI ExtractIconExAW ( LPCVOID lpszFile, INT nIconIndex, HICON * phiconLarge, HICON * phiconSmall, UINT nIcons )
 711 {       if (VERSION_OsIsUnicode())
 712           return ExtractIconExW ( lpszFile, nIconIndex, phiconLarge, phiconSmall, nIcons);
 713         return ExtractIconExA ( lpszFile, nIconIndex, phiconLarge, phiconSmall, nIcons);
 714 }
 715 /*************************************************************************
 716 *       ExtracticonEx32A        [shell32.190]
 717 * RETURNS
 718 *  0 no icon found
 719 *  1 file is not valid
 720 *  HICON32 handle of a icon (phiconLarge/Small == NULL)
 721 */
 722 HICON WINAPI ExtractIconExA ( LPCSTR lpszFile, INT nIconIndex, HICON * phiconLarge, HICON * phiconSmall, UINT nIcons )
 723 {       HICON ret=0;
 724
 725         TRACE(shell,"file=%s idx=%i %p %p num=%i\n", lpszFile, nIconIndex, phiconLarge, phiconSmall, nIcons );
 726
 727         if (nIconIndex==-1)     /* Number of icons requested */
 728           return ICO_ExtractIconEx(lpszFile, NULL, -1, 0, 0, 0  );
 729
 730
 731         if (phiconLarge)
 732         { ret = ICO_ExtractIconEx(lpszFile, phiconLarge, nIconIndex, nIcons, 32, 32  );
 733           if ( nIcons==1)
 734           { ret = phiconLarge[0];
 735           }
 736         }
 737
 738         /* if no pointers given and one icon expected, return the handle directly*/
 739         if (!phiconLarge && ! phiconSmall && nIcons==1 )
 740           phiconSmall = &ret;
 741
 742         if (phiconSmall)
 743         { ret = ICO_ExtractIconEx(lpszFile, phiconSmall, nIconIndex, nIcons, 16, 16  );
 744           if ( nIcons==1 )
 745           { ret = phiconSmall[0];
 746           }
 747         }
 748
 749         return ret;
 750 }
 751 /*************************************************************************
 752 *       ExtracticonEx32W        [shell32.191]
 753 */
 754 HICON WINAPI ExtractIconExW ( LPCWSTR lpszFile, INT nIconIndex, HICON * phiconLarge, HICON * phiconSmall, UINT nIcons )
 755 {       LPSTR sFile;
 756         DWORD ret;
 757
 758         TRACE(shell,"file=%s idx=%i %p %p num=%i\n", debugstr_w(lpszFile), nIconIndex, phiconLarge, phiconSmall, nIcons );
 759
 760         sFile = HEAP_strdupWtoA (GetProcessHeap(),0,lpszFile);
 761         ret = ExtractIconExA ( sFile, nIconIndex, phiconLarge, phiconSmall, nIcons);
 762         HeapFree(GetProcessHeap(),0,sFile);
 763         return ret;
 764 }