reactos/dll/shell32/iconcache.c

   1 /*
   2  *      shell icon cache (SIC)
   3  *
   4  * Copyright 1998, 1999 Juergen Schmied
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <stdarg.h>
  25 #include <string.h>
  26 #include <sys/types.h>
  27 #ifdef HAVE_UNISTD_H
  28 # include <unistd.h>
  29 #endif
  30
  31 #define COBJMACROS
  32
  33 #include "windef.h"
  34 #include "winbase.h"
  35 #include "wingdi.h"
  36 #include "winuser.h"
  37 #include "winreg.h"
  38 #include "wine/debug.h"
  39
  40 #include "shellapi.h"
  41 #include "objbase.h"
  42 #include "shlguid.h"
  43 #include "pidl.h"
  44 #include "shell32_main.h"
  45 #include "undocshell.h"
  46 #include "shresdef.h"
  47
  48 WINE_DEFAULT_DEBUG_CHANNEL(shell);
  49
  50 /********************** THE ICON CACHE ********************************/
  51
  52 #define INVALID_INDEX -1
  53
  54 typedef struct
  55 {
  56         LPWSTR sSourceFile;     /* file (not path!) containing the icon */
  57         DWORD dwSourceIndex;    /* index within the file, if it is a resoure ID it will be negated */
  58         DWORD dwListIndex;      /* index within the iconlist */
  59         DWORD dwFlags;          /* GIL_* flags */
  60         DWORD dwAccessTime;
  61 } SIC_ENTRY, * LPSIC_ENTRY;
  62
  63 static HDPA             sic_hdpa = 0;
  64
  65 static CRITICAL_SECTION SHELL32_SicCS;
  66 static CRITICAL_SECTION_DEBUG critsect_debug =
  67 {
  68     0, 0, &SHELL32_SicCS,
  69     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
  70       0, 0, { (DWORD_PTR)(__FILE__ ": SHELL32_SicCS") }
  71 };
  72 static CRITICAL_SECTION SHELL32_SicCS = { &critsect_debug, -1, 0, 0, 0, 0 };
  73
  74 /*****************************************************************************
  75  * SIC_CompareEntries
  76  *
  77  * NOTES
  78  *  Callback for DPA_Search
  79  */
  80 static INT CALLBACK SIC_CompareEntries( LPVOID p1, LPVOID p2, LPARAM lparam)
  81 {       LPSIC_ENTRY e1 = (LPSIC_ENTRY)p1, e2 = (LPSIC_ENTRY)p2;
  82
  83         TRACE("%p %p %8lx\n", p1, p2, lparam);
  84
  85         /* Icons in the cache are keyed by the name of the file they are
  86          * loaded from, their resource index and the fact if they have a shortcut
  87          * icon overlay or not.
  88          */
  89         if (e1->dwSourceIndex != e2->dwSourceIndex || /* first the faster one */
  90             (e1->dwFlags & GIL_FORSHORTCUT) != (e2->dwFlags & GIL_FORSHORTCUT))
  91           return 1;
  92
  93         if (strcmpiW(e1->sSourceFile,e2->sSourceFile))
  94           return 1;
  95
  96         return 0;
  97 }
  98
  99 /* declare SIC_LoadOverlayIcon() */
 100 static int SIC_LoadOverlayIcon(int idx);
 101
 102 /*****************************************************************************
 103  * SIC_OverlayShortcutImage                     [internal]
 104  *
 105  * NOTES
 106  *  Creates a new icon as a copy of the passed-in icon, overlayed with a
 107  *  shortcut image.
 108  */
 109 static HICON SIC_OverlayShortcutImage(HICON SourceIcon, BOOL large)
 110 {       ICONINFO SourceIconInfo, ShortcutIconInfo, TargetIconInfo;
 111         HICON ShortcutIcon, TargetIcon;
 112         BITMAP SourceBitmapInfo, ShortcutBitmapInfo;
 113         HDC SourceDC = NULL,
 114           ShortcutDC = NULL,
 115           TargetDC = NULL,
 116           ScreenDC = NULL;
 117         HBITMAP OldSourceBitmap = NULL,
 118           OldShortcutBitmap = NULL,
 119           OldTargetBitmap = NULL;
 120
 121         static int s_imgListIdx = -1;
 122
 123         /* Get information about the source icon and shortcut overlay */
 124         if (! GetIconInfo(SourceIcon, &SourceIconInfo)
 125             || 0 == GetObjectW(SourceIconInfo.hbmColor, sizeof(BITMAP), &SourceBitmapInfo))
 126         {
 127           return NULL;
 128         }
 129
 130         /* search for the shortcut icon only once */
 131         if (s_imgListIdx == -1)
 132             s_imgListIdx = SIC_LoadOverlayIcon(- IDI_SHELL_SHORTCUT);
 133                            /* FIXME should use icon index 29 instead of the
 134                               resource id, but not all icons are present yet
 135                               so we can't use icon indices */
 136
 137         if (s_imgListIdx != -1)
 138         {
 139             if (large)
 140                 ShortcutIcon = ImageList_GetIcon(ShellBigIconList, s_imgListIdx, ILD_TRANSPARENT);
 141             else
 142                 ShortcutIcon = ImageList_GetIcon(ShellSmallIconList, s_imgListIdx, ILD_TRANSPARENT);
 143         } else
 144             ShortcutIcon = NULL;
 145
 146         if (NULL == ShortcutIcon
 147             || ! GetIconInfo(ShortcutIcon, &ShortcutIconInfo)
 148             || 0 == GetObjectW(ShortcutIconInfo.hbmColor, sizeof(BITMAP), &ShortcutBitmapInfo))
 149         {
 150           return NULL;
 151         }
 152
 153         TargetIconInfo = SourceIconInfo;
 154         TargetIconInfo.hbmMask = NULL;
 155         TargetIconInfo.hbmColor = NULL;
 156
 157         /* Setup the source, shortcut and target masks */
 158         SourceDC = CreateCompatibleDC(NULL);
 159         if (NULL == SourceDC) goto fail;
 160         OldSourceBitmap = SelectObject(SourceDC, SourceIconInfo.hbmMask);
 161         if (NULL == OldSourceBitmap) goto fail;
 162
 163         ShortcutDC = CreateCompatibleDC(NULL);
 164         if (NULL == ShortcutDC) goto fail;
 165         OldShortcutBitmap = SelectObject(ShortcutDC, ShortcutIconInfo.hbmMask);
 166         if (NULL == OldShortcutBitmap) goto fail;
 167
 168         TargetDC = CreateCompatibleDC(NULL);
 169         if (NULL == TargetDC) goto fail;
 170         TargetIconInfo.hbmMask = CreateCompatibleBitmap(TargetDC, SourceBitmapInfo.bmWidth,
 171                                                         SourceBitmapInfo.bmHeight);
 172         if (NULL == TargetIconInfo.hbmMask) goto fail;
 173         ScreenDC = GetDC(NULL);
 174         if (NULL == ScreenDC) goto fail;
 175         TargetIconInfo.hbmColor = CreateCompatibleBitmap(ScreenDC, SourceBitmapInfo.bmWidth,
 176                                                          SourceBitmapInfo.bmHeight);
 177         ReleaseDC(NULL, ScreenDC);
 178         if (NULL == TargetIconInfo.hbmColor) goto fail;
 179         OldTargetBitmap = SelectObject(TargetDC, TargetIconInfo.hbmMask);
 180         if (NULL == OldTargetBitmap) goto fail;
 181
 182         /* Create the target mask by ANDing the source and shortcut masks */
 183         if (! BitBlt(TargetDC, 0, 0, SourceBitmapInfo.bmWidth, SourceBitmapInfo.bmHeight,
 184                      SourceDC, 0, 0, SRCCOPY) ||
 185             ! BitBlt(TargetDC, 0, SourceBitmapInfo.bmHeight - ShortcutBitmapInfo.bmHeight,
 186                      ShortcutBitmapInfo.bmWidth, ShortcutBitmapInfo.bmHeight,
 187                      ShortcutDC, 0, 0, SRCAND))
 188         {
 189           goto fail;
 190         }
 191
 192         /* Setup the source and target xor bitmap */
 193         if (NULL == SelectObject(SourceDC, SourceIconInfo.hbmColor) ||
 194             NULL == SelectObject(TargetDC, TargetIconInfo.hbmColor))
 195         {
 196           goto fail;
 197         }
 198
 199         /* Copy the source xor bitmap to the target and clear out part of it by using
 200            the shortcut mask */
 201         if (! BitBlt(TargetDC, 0, 0, SourceBitmapInfo.bmWidth, SourceBitmapInfo.bmHeight,
 202                      SourceDC, 0, 0, SRCCOPY) ||
 203             ! BitBlt(TargetDC, 0, SourceBitmapInfo.bmHeight - ShortcutBitmapInfo.bmHeight,
 204                      ShortcutBitmapInfo.bmWidth, ShortcutBitmapInfo.bmHeight,
 205                      ShortcutDC, 0, 0, SRCAND))
 206         {
 207           goto fail;
 208         }
 209
 210         if (NULL == SelectObject(ShortcutDC, ShortcutIconInfo.hbmColor)) goto fail;
 211
 212         /* Now put in the shortcut xor mask */
 213         if (! BitBlt(TargetDC, 0, SourceBitmapInfo.bmHeight - ShortcutBitmapInfo.bmHeight,
 214                      ShortcutBitmapInfo.bmWidth, ShortcutBitmapInfo.bmHeight,
 215                      ShortcutDC, 0, 0, SRCINVERT))
 216         {
 217           goto fail;
 218         }
 219
 220         /* Clean up, we're not goto'ing to 'fail' after this so we can be lazy and not set
 221            handles to NULL */
 222         SelectObject(TargetDC, OldTargetBitmap);
 223         DeleteObject(TargetDC);
 224         SelectObject(ShortcutDC, OldShortcutBitmap);
 225         DeleteObject(ShortcutDC);
 226         SelectObject(SourceDC, OldSourceBitmap);
 227         DeleteObject(SourceDC);
 228
 229         /* Create the icon using the bitmaps prepared earlier */
 230         TargetIcon = CreateIconIndirect(&TargetIconInfo);
 231
 232         /* CreateIconIndirect copies the bitmaps, so we can release our bitmaps now */
 233         DeleteObject(TargetIconInfo.hbmColor);
 234         DeleteObject(TargetIconInfo.hbmMask);
 235
 236         return TargetIcon;
 237
 238 fail:
 239         /* Clean up scratch resources we created */
 240         if (NULL != OldTargetBitmap) SelectObject(TargetDC, OldTargetBitmap);
 241         if (NULL != TargetIconInfo.hbmColor) DeleteObject(TargetIconInfo.hbmColor);
 242         if (NULL != TargetIconInfo.hbmMask) DeleteObject(TargetIconInfo.hbmMask);
 243         if (NULL != TargetDC) DeleteObject(TargetDC);
 244         if (NULL != OldShortcutBitmap) SelectObject(ShortcutDC, OldShortcutBitmap);
 245         if (NULL != ShortcutDC) DeleteObject(ShortcutDC);
 246         if (NULL != OldSourceBitmap) SelectObject(SourceDC, OldSourceBitmap);
 247         if (NULL != SourceDC) DeleteObject(SourceDC);
 248
 249         return NULL;
 250 }
 251
 252 /*****************************************************************************
 253  * SIC_IconAppend                       [internal]
 254  *
 255  * NOTES
 256  *  appends an icon pair to the end of the cache
 257  */
 258 static INT SIC_IconAppend (LPCWSTR sSourceFile, INT dwSourceIndex, HICON hSmallIcon, HICON hBigIcon, DWORD dwFlags)
 259 {       LPSIC_ENTRY lpsice;
 260         INT ret, index, index1;
 261         WCHAR path[MAX_PATH];
 262         TRACE("%s %i %p %p\n", debugstr_w(sSourceFile), dwSourceIndex, hSmallIcon ,hBigIcon);
 263
 264         lpsice = (LPSIC_ENTRY) SHAlloc (sizeof (SIC_ENTRY));
 265
 266         GetFullPathNameW(sSourceFile, MAX_PATH, path, NULL);
 267         lpsice->sSourceFile = HeapAlloc( GetProcessHeap(), 0, (strlenW(path)+1)*sizeof(WCHAR) );
 268         strcpyW( lpsice->sSourceFile, path );
 269
 270         lpsice->dwSourceIndex = dwSourceIndex;
 271         lpsice->dwFlags = dwFlags;
 272
 273         EnterCriticalSection(&SHELL32_SicCS);
 274
 275         index = DPA_InsertPtr(sic_hdpa, 0x7fff, lpsice);
 276         if ( INVALID_INDEX == index )
 277         {
 278           HeapFree(GetProcessHeap(), 0, lpsice->sSourceFile);
 279           SHFree(lpsice);
 280           ret = INVALID_INDEX;
 281         }
 282         else
 283         {
 284           index = ImageList_AddIcon (ShellSmallIconList, hSmallIcon);
 285           index1= ImageList_AddIcon (ShellBigIconList, hBigIcon);
 286
 287           if (index!=index1)
 288           {
 289             FIXME("iconlists out of sync 0x%x 0x%x\n", index, index1);
 290           }
 291           lpsice->dwListIndex = index;
 292           ret = lpsice->dwListIndex;
 293         }
 294
 295         LeaveCriticalSection(&SHELL32_SicCS);
 296         return ret;
 297 }
 298 /****************************************************************************
 299  * SIC_LoadIcon                         [internal]
 300  *
 301  * NOTES
 302  *  gets small/big icon by number from a file
 303  */
 304 static INT SIC_LoadIcon (LPCWSTR sSourceFile, INT dwSourceIndex, DWORD dwFlags)
 305 {       HICON   hiconLarge=0;
 306         HICON   hiconSmall=0;
 307         HICON   hiconLargeShortcut;
 308         HICON   hiconSmallShortcut;
 309
 310 #if defined(__CYGWIN__) || defined (__MINGW32__) || defined(_MSC_VER)
 311         static UINT (WINAPI*PrivateExtractIconExW)(LPCWSTR,int,HICON*,HICON*,UINT) = NULL;
 312
 313         if (!PrivateExtractIconExW) {
 314             HMODULE hUser32 = GetModuleHandleA("user32");
 315             PrivateExtractIconExW = (UINT(WINAPI*)(LPCWSTR,int,HICON*,HICON*,UINT)) GetProcAddress(hUser32, "PrivateExtractIconExW");
 316         }
 317
 318         if (PrivateExtractIconExW)
 319             PrivateExtractIconExW(sSourceFile, dwSourceIndex, &hiconLarge, &hiconSmall, 1);
 320         else
 321 #endif
 322         {
 323             PrivateExtractIconsW(sSourceFile, dwSourceIndex, 32, 32, &hiconLarge, NULL, 1, 0);
 324             PrivateExtractIconsW(sSourceFile, dwSourceIndex, 16, 16, &hiconSmall, NULL, 1, 0);
 325         }
 326
 327         if ( !hiconLarge ||  !hiconSmall)
 328         {
 329           WARN("failure loading icon %i from %s (%p %p)\n", dwSourceIndex, debugstr_w(sSourceFile), hiconLarge, hiconSmall);
 330           return -1;
 331         }
 332
 333         if (0 != (dwFlags & GIL_FORSHORTCUT))
 334         {
 335           hiconLargeShortcut = SIC_OverlayShortcutImage(hiconLarge, TRUE);
 336           hiconSmallShortcut = SIC_OverlayShortcutImage(hiconSmall, FALSE);
 337           if (NULL != hiconLargeShortcut && NULL != hiconSmallShortcut)
 338           {
 339             hiconLarge = hiconLargeShortcut;
 340             hiconSmall = hiconSmallShortcut;
 341           }
 342           else
 343           {
 344             WARN("Failed to create shortcut overlayed icons\n");
 345             if (NULL != hiconLargeShortcut) DestroyIcon(hiconLargeShortcut);
 346             if (NULL != hiconSmallShortcut) DestroyIcon(hiconSmallShortcut);
 347             dwFlags &= ~ GIL_FORSHORTCUT;
 348           }
 349         }
 350
 351         return SIC_IconAppend (sSourceFile, dwSourceIndex, hiconSmall, hiconLarge, dwFlags);
 352 }
 353 /*****************************************************************************
 354  * SIC_GetIconIndex                     [internal]
 355  *
 356  * Parameters
 357  *      sSourceFile     [IN]    filename of file containing the icon
 358  *      index           [IN]    index/resID (negated) in this file
 359  *
 360  * NOTES
 361  *  look in the cache for a proper icon. if not available the icon is taken
 362  *  from the file and cached
 363  */
 364 INT SIC_GetIconIndex (LPCWSTR sSourceFile, INT dwSourceIndex, DWORD dwFlags )
 365 {
 366         SIC_ENTRY sice;
 367         INT ret, index = INVALID_INDEX;
 368         WCHAR path[MAX_PATH];
 369
 370         TRACE("%s %i\n", debugstr_w(sSourceFile), dwSourceIndex);
 371
 372         GetFullPathNameW(sSourceFile, MAX_PATH, path, NULL);
 373         sice.sSourceFile = path;
 374         sice.dwSourceIndex = dwSourceIndex;
 375         sice.dwFlags = dwFlags;
 376
 377         EnterCriticalSection(&SHELL32_SicCS);
 378
 379         if (NULL != DPA_GetPtr (sic_hdpa, 0))
 380         {
 381           /* search linear from position 0*/
 382           index = DPA_Search (sic_hdpa, &sice, 0, SIC_CompareEntries, 0, 0);
 383         }
 384
 385         if ( INVALID_INDEX == index )
 386         {
 387           ret = SIC_LoadIcon (sSourceFile, dwSourceIndex, dwFlags);
 388         }
 389         else
 390         {
 391           TRACE("-- found\n");
 392           ret = ((LPSIC_ENTRY)DPA_GetPtr(sic_hdpa, index))->dwListIndex;
 393         }
 394
 395         LeaveCriticalSection(&SHELL32_SicCS);
 396         return ret;
 397 }
 398 /*****************************************************************************
 399  * SIC_Initialize                       [internal]
 400  */
 401 BOOL SIC_Initialize(void)
 402 {
 403         HICON           hSm, hLg;
 404         int             cx_small, cy_small;
 405         int             cx_large, cy_large;
 406
 407         cx_small = GetSystemMetrics(SM_CXSMICON);
 408         cy_small = GetSystemMetrics(SM_CYSMICON);
 409         cx_large = GetSystemMetrics(SM_CXICON);
 410         cy_large = GetSystemMetrics(SM_CYICON);
 411
 412         TRACE("\n");
 413
 414         if (sic_hdpa)   /* already initialized?*/
 415           return TRUE;
 416
 417         sic_hdpa = DPA_Create(16);
 418
 419         if (!sic_hdpa)
 420         {
 421           return(FALSE);
 422         }
 423
 424         ShellSmallIconList = ImageList_Create(cx_small,cy_small,ILC_COLOR32|ILC_MASK,0,0x20);
 425         ShellBigIconList = ImageList_Create(cx_large,cy_large,ILC_COLOR32|ILC_MASK,0,0x20);
 426
 427         ImageList_SetBkColor(ShellSmallIconList, CLR_NONE);
 428         ImageList_SetBkColor(ShellBigIconList, CLR_NONE);
 429
 430         /* Load the document icon, which is used as the default if an icon isn't found. */
 431         hSm = (HICON)LoadImageA(shell32_hInstance, MAKEINTRESOURCEA(IDI_SHELL_DOCUMENT),
 432                                 IMAGE_ICON, cx_small, cy_small, LR_SHARED);
 433         hLg = (HICON)LoadImageA(shell32_hInstance, MAKEINTRESOURCEA(IDI_SHELL_DOCUMENT),
 434                                 IMAGE_ICON, cx_large, cy_large, LR_SHARED);
 435
 436         if (!hSm || !hLg)
 437         {
 438           FIXME("Failed to load IDI_SHELL_DOCUMENT icon!\n");
 439           return FALSE;
 440         }
 441
 442         SIC_IconAppend (swShell32Name, IDI_SHELL_DOCUMENT-1, hSm, hLg, 0);
 443         SIC_IconAppend (swShell32Name, -IDI_SHELL_DOCUMENT, hSm, hLg, 0);
 444
 445         TRACE("hIconSmall=%p hIconBig=%p\n",ShellSmallIconList, ShellBigIconList);
 446
 447         return TRUE;
 448 }
 449 /*************************************************************************
 450  * SIC_Destroy
 451  *
 452  * frees the cache
 453  */
 454 static INT CALLBACK sic_free( LPVOID ptr, LPVOID lparam )
 455 {
 456         HeapFree(GetProcessHeap(), 0, ((LPSIC_ENTRY)ptr)->sSourceFile);
 457         SHFree(ptr);
 458         return TRUE;
 459 }
 460
 461 void SIC_Destroy(void)
 462 {
 463         TRACE("\n");
 464
 465         EnterCriticalSection(&SHELL32_SicCS);
 466
 467         if (sic_hdpa) DPA_DestroyCallback(sic_hdpa, sic_free, NULL );
 468
 469         sic_hdpa = NULL;
 470         ImageList_Destroy(ShellSmallIconList);
 471         ShellSmallIconList = 0;
 472         ImageList_Destroy(ShellBigIconList);
 473         ShellBigIconList = 0;
 474
 475         LeaveCriticalSection(&SHELL32_SicCS);
 476 }
 477
 478 /*****************************************************************************
 479  * SIC_LoadOverlayIcon                  [internal]
 480  *
 481  * Load a shell overlay icon and return its icon cache index.
 482  */
 483 static int SIC_LoadOverlayIcon(int idx)
 484 {
 485         WCHAR buffer[1024], wszIdx[8];
 486         HKEY hKeyShellIcons;
 487         LPCWSTR iconPath;
 488         int iconIdx;
 489
 490         static const WCHAR wszShellIcons[] = {
 491             'S','o','f','t','w','a','r','e','\\','M','i','c','r','o','s','o','f','t','\\',
 492             'W','i','n','d','o','w','s','\\','C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
 493             'E','x','p','l','o','r','e','r','\\','S','h','e','l','l',' ','I','c','o','n','s',0
 494         };
 495         static const WCHAR wszNumFmt[] = {'%','d',0};
 496
 497         iconPath = swShell32Name;       /* default: load icon from shell32.dll */
 498         iconIdx = idx;
 499
 500         if (RegOpenKeyExW(HKEY_LOCAL_MACHINE, wszShellIcons, 0, KEY_READ, &hKeyShellIcons) == ERROR_SUCCESS)
 501         {
 502             DWORD count = sizeof(buffer);
 503
 504             sprintfW(wszIdx, wszNumFmt, idx);
 505
 506             /* read icon path and index */
 507             if (RegQueryValueExW(hKeyShellIcons, wszIdx, NULL, NULL, (LPBYTE)buffer, &count) == ERROR_SUCCESS)
 508             {
 509                 LPWSTR p = strchrW(buffer, ',');
 510
 511                 if (p)
 512                     *p++ = 0;
 513
 514                 iconPath = buffer;
 515                 iconIdx = atoiW(p);
 516             }
 517
 518             RegCloseKey(hKeyShellIcons);
 519         }
 520
 521         return SIC_LoadIcon(iconPath, iconIdx, 0);
 522 }
 523
 524 /*************************************************************************
 525  * Shell_GetImageList                   [SHELL32.71]
 526  *
 527  * PARAMETERS
 528  *  imglist[1|2] [OUT] pointer which receives imagelist handles
 529  *
 530  */
 531 BOOL WINAPI Shell_GetImageList(HIMAGELIST * lpBigList, HIMAGELIST * lpSmallList)
 532 {       TRACE("(%p,%p)\n",lpBigList,lpSmallList);
 533         if (lpBigList)
 534         { *lpBigList = ShellBigIconList;
 535         }
 536         if (lpSmallList)
 537         { *lpSmallList = ShellSmallIconList;
 538         }
 539
 540         return TRUE;
 541 }
 542 /*************************************************************************
 543  * PidlToSicIndex                       [INTERNAL]
 544  *
 545  * PARAMETERS
 546  *      sh      [IN]    IShellFolder
 547  *      pidl    [IN]
 548  *      bBigIcon [IN]
 549  *      uFlags  [IN]    GIL_*
 550  *      pIndex  [OUT]   index within the SIC
 551  *
 552  */
 553 BOOL PidlToSicIndex (
 554         IShellFolder * sh,
 555         LPCITEMIDLIST pidl,
 556         BOOL bBigIcon,
 557         UINT uFlags,
 558         int * pIndex)
 559 {
 560         IExtractIconW   *ei;
 561         WCHAR           szIconFile[MAX_PATH];   /* file containing the icon */
 562         INT             iSourceIndex;           /* index or resID(negated) in this file */
 563         BOOL            ret = FALSE;
 564         UINT            dwFlags = 0;
 565         int             iShortcutDefaultIndex = INVALID_INDEX;
 566
 567         TRACE("sf=%p pidl=%p %s\n", sh, pidl, bBigIcon?"Big":"Small");
 568
 569         if (SUCCEEDED (IShellFolder_GetUIObjectOf(sh, 0, 1, &pidl, &IID_IExtractIconW, 0, (void **)&ei)))
 570         {
 571           if (SUCCEEDED(IExtractIconW_GetIconLocation(ei, uFlags, szIconFile, MAX_PATH, &iSourceIndex, &dwFlags)))
 572           {
 573             *pIndex = SIC_GetIconIndex(szIconFile, iSourceIndex, uFlags);
 574             ret = TRUE;
 575           }
 576           IExtractIconW_Release(ei);
 577         }
 578
 579         if (INVALID_INDEX == *pIndex)   /* default icon when failed */
 580         {
 581           if (0 == (uFlags & GIL_FORSHORTCUT))
 582           {
 583             *pIndex = 0;
 584           }
 585           else
 586           {
 587             if (INVALID_INDEX == iShortcutDefaultIndex)
 588             {
 589               iShortcutDefaultIndex = SIC_LoadIcon(swShell32Name, 0, GIL_FORSHORTCUT);
 590             }
 591             *pIndex = (INVALID_INDEX != iShortcutDefaultIndex ? iShortcutDefaultIndex : 0);
 592           }
 593         }
 594
 595         return ret;
 596
 597 }
 598
 599 /*************************************************************************
 600  * SHMapPIDLToSystemImageListIndex      [SHELL32.77]
 601  *
 602  * PARAMETERS
 603  *      sh      [IN]            pointer to an instance of IShellFolder
 604  *      pidl    [IN]
 605  *      pIndex  [OUT][OPTIONAL] SIC index for big icon
 606  *
 607  */
 608 int WINAPI SHMapPIDLToSystemImageListIndex(
 609         IShellFolder *sh,
 610         LPCITEMIDLIST pidl,
 611         int *pIndex)
 612 {
 613         int Index;
 614         UINT uGilFlags = 0;
 615
 616         TRACE("(SF=%p,pidl=%p,%p)\n",sh,pidl,pIndex);
 617         pdump(pidl);
 618
 619         if (SHELL_IsShortcut(pidl))
 620             uGilFlags |= GIL_FORSHORTCUT;
 621
 622         if (pIndex)
 623             if (!PidlToSicIndex ( sh, pidl, 1, uGilFlags, pIndex))
 624                 *pIndex = -1;
 625
 626         if (!PidlToSicIndex ( sh, pidl, 0, uGilFlags, &Index))
 627             return -1;
 628
 629         return Index;
 630 }
 631
 632 /*************************************************************************
 633  * Shell_GetCachedImageIndex            [SHELL32.72]
 634  *
 635  */
 636 INT WINAPI Shell_GetCachedImageIndexA(LPCSTR szPath, INT nIndex, BOOL bSimulateDoc)
 637 {
 638         INT ret, len;
 639         LPWSTR szTemp;
 640
 641         WARN("(%s,%08x,%08x) semi-stub.\n",debugstr_a(szPath), nIndex, bSimulateDoc);
 642
 643         len = MultiByteToWideChar( CP_ACP, 0, szPath, -1, NULL, 0 );
 644         szTemp = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
 645         MultiByteToWideChar( CP_ACP, 0, szPath, -1, szTemp, len );
 646
 647         ret = SIC_GetIconIndex( szTemp, nIndex, 0 );
 648
 649         HeapFree( GetProcessHeap(), 0, szTemp );
 650
 651         return ret;
 652 }
 653
 654 INT WINAPI Shell_GetCachedImageIndexW(LPCWSTR szPath, INT nIndex, BOOL bSimulateDoc)
 655 {
 656         WARN("(%s,%08x,%08x) semi-stub.\n",debugstr_w(szPath), nIndex, bSimulateDoc);
 657
 658         return SIC_GetIconIndex(szPath, nIndex, 0);
 659 }
 660
 661 INT WINAPI Shell_GetCachedImageIndexAW(LPCVOID szPath, INT nIndex, BOOL bSimulateDoc)
 662 {       if( SHELL_OsIsUnicode())
 663           return Shell_GetCachedImageIndexW(szPath, nIndex, bSimulateDoc);
 664         return Shell_GetCachedImageIndexA(szPath, nIndex, bSimulateDoc);
 665 }
 666
 667 /*************************************************************************
 668  * ExtractIconExW                       [SHELL32.@]
 669  * RETURNS
 670  *  0 no icon found
 671  *  -1 file is not valid
 672  *  or number of icons extracted
 673  */
 674 UINT WINAPI ExtractIconExW(LPCWSTR lpszFile, INT nIconIndex, HICON * phiconLarge, HICON * phiconSmall, UINT nIcons)
 675 {
 676         /* get entry point of undocumented function PrivateExtractIconExW() in user32 */
 677 #if defined(__CYGWIN__) || defined (__MINGW32__) || defined(_MSC_VER)
 678         static UINT (WINAPI*PrivateExtractIconExW)(LPCWSTR,int,HICON*,HICON*,UINT) = NULL;
 679
 680         if (!PrivateExtractIconExW) {
 681             HMODULE hUser32 = GetModuleHandleA("user32");
 682             PrivateExtractIconExW = (UINT(WINAPI*)(LPCWSTR,int,HICON*,HICON*,UINT)) GetProcAddress(hUser32, "PrivateExtractIconExW");
 683
 684             if (!PrivateExtractIconExW)
 685                 return 0;
 686         }
 687 #endif
 688
 689         TRACE("%s %i %p %p %i\n", debugstr_w(lpszFile), nIconIndex, phiconLarge, phiconSmall, nIcons);
 690
 691         return PrivateExtractIconExW(lpszFile, nIconIndex, phiconLarge, phiconSmall, nIcons);
 692 }
 693
 694 /*************************************************************************
 695  * ExtractIconExA                       [SHELL32.@]
 696  */
 697 UINT WINAPI ExtractIconExA(LPCSTR lpszFile, INT nIconIndex, HICON * phiconLarge, HICON * phiconSmall, UINT nIcons)
 698 {
 699     UINT ret = 0;
 700     INT len = MultiByteToWideChar(CP_ACP, 0, lpszFile, -1, NULL, 0);
 701     LPWSTR lpwstrFile = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
 702
 703     TRACE("%s %i %p %p %i\n", lpszFile, nIconIndex, phiconLarge, phiconSmall, nIcons);
 704
 705     if (lpwstrFile)
 706     {
 707         MultiByteToWideChar(CP_ACP, 0, lpszFile, -1, lpwstrFile, len);
 708         ret = ExtractIconExW(lpwstrFile, nIconIndex, phiconLarge, phiconSmall, nIcons);
 709         HeapFree(GetProcessHeap(), 0, lpwstrFile);
 710     }
 711     return ret;
 712 }
 713
 714 /*************************************************************************
 715  *                              ExtractAssociatedIconA (SHELL32.@)
 716  *
 717  * Return icon for given file (either from file itself or from associated
 718  * executable) and patch parameters if needed.
 719  */
 720 HICON WINAPI ExtractAssociatedIconA(HINSTANCE hInst, LPSTR lpIconPath, LPWORD lpiIcon)
 721 {
 722     HICON hIcon = NULL;
 723     INT len = MultiByteToWideChar(CP_ACP, 0, lpIconPath, -1, NULL, 0);
 724     /* Note that we need to allocate MAX_PATH, since we are supposed to fill
 725      * the correct executable if there is no icon in lpIconPath directly.
 726      * lpIconPath itself is supposed to be large enough, so make sure lpIconPathW
 727      * is large enough too. Yes, I am puking too.
 728      */
 729     LPWSTR lpIconPathW = HeapAlloc(GetProcessHeap(), 0, MAX_PATH * sizeof(WCHAR));
 730
 731     TRACE("%p %s %p\n", hInst, debugstr_a(lpIconPath), lpiIcon);
 732
 733     if (lpIconPathW)
 734     {
 735         MultiByteToWideChar(CP_ACP, 0, lpIconPath, -1, lpIconPathW, len);
 736         hIcon = ExtractAssociatedIconW(hInst, lpIconPathW, lpiIcon);
 737         WideCharToMultiByte(CP_ACP, 0, lpIconPathW, -1, lpIconPath, MAX_PATH , NULL, NULL);
 738         HeapFree(GetProcessHeap(), 0, lpIconPathW);
 739     }
 740     return hIcon;
 741 }
 742
 743 /*************************************************************************
 744  *                              ExtractAssociatedIconW (SHELL32.@)
 745  *
 746  * Return icon for given file (either from file itself or from associated
 747  * executable) and patch parameters if needed.
 748  */
 749 HICON WINAPI ExtractAssociatedIconW(HINSTANCE hInst, LPWSTR lpIconPath, LPWORD lpiIcon)
 750 {
 751     HICON hIcon = NULL;
 752     WORD wDummyIcon = 0;
 753
 754     TRACE("%p %s %p\n", hInst, debugstr_w(lpIconPath), lpiIcon);
 755
 756     if(lpiIcon == NULL)
 757         lpiIcon = &wDummyIcon;
 758
 759     hIcon = ExtractIconW(hInst, lpIconPath, *lpiIcon);
 760
 761     if( hIcon < (HICON)2 )
 762     { if( hIcon == (HICON)1 ) /* no icons found in given file */
 763       { WCHAR tempPath[MAX_PATH];
 764         HINSTANCE uRet = FindExecutableW(lpIconPath,NULL,tempPath);
 765
 766         if( uRet > (HINSTANCE)32 && tempPath[0] )
 767         { lstrcpyW(lpIconPath,tempPath);
 768           hIcon = ExtractIconW(hInst, lpIconPath, *lpiIcon);
 769           if( hIcon > (HICON)2 )
 770             return hIcon;
 771         }
 772       }
 773
 774       if( hIcon == (HICON)1 )
 775         *lpiIcon = 2;   /* MSDOS icon - we found .exe but no icons in it */
 776       else
 777         *lpiIcon = 6;   /* generic icon - found nothing */
 778
 779       if (GetModuleFileNameW(hInst, lpIconPath, MAX_PATH))
 780         hIcon = LoadIconW(hInst, MAKEINTRESOURCEW(*lpiIcon));
 781     }
 782     return hIcon;
 783 }
 784
 785 /*************************************************************************
 786  *                              ExtractAssociatedIconExW (SHELL32.@)
 787  *
 788  * Return icon for given file (either from file itself or from associated
 789  * executable) and patch parameters if needed.
 790  */
 791 HICON WINAPI ExtractAssociatedIconExW(HINSTANCE hInst, LPWSTR lpIconPath, LPWORD lpiIconIdx, LPWORD lpiIconId)
 792 {
 793   FIXME("%p %s %p %p): stub\n", hInst, debugstr_w(lpIconPath), lpiIconIdx, lpiIconId);
 794   return 0;
 795 }
 796
 797 /*************************************************************************
 798  *                              ExtractAssociatedIconExA (SHELL32.@)
 799  *
 800  * Return icon for given file (either from file itself or from associated
 801  * executable) and patch parameters if needed.
 802  */
 803 HICON WINAPI ExtractAssociatedIconExA(HINSTANCE hInst, LPSTR lpIconPath, LPWORD lpiIconIdx, LPWORD lpiIconId)
 804 {
 805   HICON ret;
 806   INT len = MultiByteToWideChar( CP_ACP, 0, lpIconPath, -1, NULL, 0 );
 807   LPWSTR lpwstrFile = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
 808
 809   TRACE("%p %s %p %p)\n", hInst, lpIconPath, lpiIconIdx, lpiIconId);
 810
 811   MultiByteToWideChar( CP_ACP, 0, lpIconPath, -1, lpwstrFile, len );
 812   ret = ExtractAssociatedIconExW(hInst, lpwstrFile, lpiIconIdx, lpiIconId);
 813   HeapFree(GetProcessHeap(), 0, lpwstrFile);
 814   return ret;
 815 }
 816
 817
 818 /****************************************************************************
 819  * SHDefExtractIconW            [SHELL32.@]
 820  */
 821 HRESULT WINAPI SHDefExtractIconW(LPCWSTR pszIconFile, int iIndex, UINT uFlags,
 822                                  HICON* phiconLarge, HICON* phiconSmall, UINT nIconSize)
 823 {
 824         UINT ret;
 825         HICON hIcons[2];
 826         WARN("%s %d 0x%08x %p %p %d, semi-stub\n", debugstr_w(pszIconFile), iIndex, uFlags, phiconLarge, phiconSmall, nIconSize);
 827
 828         ret = PrivateExtractIconsW(pszIconFile, iIndex, nIconSize, nIconSize, hIcons, NULL, 2, LR_DEFAULTCOLOR);
 829         /* FIXME: deal with uFlags parameter which contains GIL_ flags */
 830         if (ret == 0xFFFFFFFF)
 831           return E_FAIL;
 832         if (ret > 0) {
 833           *phiconLarge = hIcons[0];
 834           *phiconSmall = hIcons[1];
 835           return S_OK;
 836         }
 837         return S_FALSE;
 838 }
 839
 840 /****************************************************************************
 841  * SHDefExtractIconA            [SHELL32.@]
 842  */
 843 HRESULT WINAPI SHDefExtractIconA(LPCSTR pszIconFile, int iIndex, UINT uFlags,
 844                                  HICON* phiconLarge, HICON* phiconSmall, UINT nIconSize)
 845 {
 846   HRESULT ret;
 847   INT len = MultiByteToWideChar(CP_ACP, 0, pszIconFile, -1, NULL, 0);
 848   LPWSTR lpwstrFile = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
 849
 850   TRACE("%s %d 0x%08x %p %p %d\n", pszIconFile, iIndex, uFlags, phiconLarge, phiconSmall, nIconSize);
 851
 852   MultiByteToWideChar(CP_ACP, 0, pszIconFile, -1, lpwstrFile, len);
 853   ret = SHDefExtractIconW(lpwstrFile, iIndex, uFlags, phiconLarge, phiconSmall, nIconSize);
 854   HeapFree(GetProcessHeap(), 0, lpwstrFile);
 855   return ret;
 856 }