dlls/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 /*****************************************************************************
 100  * SIC_OverlayShortcutImage                     [internal]
 101  *
 102  * NOTES
 103  *  Creates a new icon as a copy of the passed-in icon, overlayed with a
 104  *  shortcut image.
 105  */
 106 static HICON SIC_OverlayShortcutImage(HICON SourceIcon)
 107 {       ICONINFO SourceIconInfo, ShortcutIconInfo, TargetIconInfo;
 108         HICON ShortcutIcon, TargetIcon;
 109         BITMAP SourceBitmapInfo, ShortcutBitmapInfo;
 110         HDC SourceDC = NULL,
 111           ShortcutDC = NULL,
 112           TargetDC = NULL,
 113           ScreenDC = NULL;
 114         HBITMAP OldSourceBitmap = NULL,
 115           OldShortcutBitmap = NULL,
 116           OldTargetBitmap = NULL;
 117
 118         /* Get information about the source icon and shortcut overlay */
 119         if (! GetIconInfo(SourceIcon, &SourceIconInfo)
 120             || 0 == GetObjectW(SourceIconInfo.hbmColor, sizeof(BITMAP), &SourceBitmapInfo))
 121         {
 122           return NULL;
 123         }
 124         ShortcutIcon = LoadImageW(shell32_hInstance, MAKEINTRESOURCEW(IDI_SHELL_SHORTCUT),
 125                                   IMAGE_ICON, SourceBitmapInfo.bmWidth, SourceBitmapInfo.bmWidth,
 126                                   LR_SHARED);
 127         if (NULL == ShortcutIcon
 128             || ! GetIconInfo(ShortcutIcon, &ShortcutIconInfo)
 129             || 0 == GetObjectW(ShortcutIconInfo.hbmColor, sizeof(BITMAP), &ShortcutBitmapInfo))
 130         {
 131           return NULL;
 132         }
 133
 134         TargetIconInfo = SourceIconInfo;
 135         TargetIconInfo.hbmMask = NULL;
 136         TargetIconInfo.hbmColor = NULL;
 137
 138         /* Setup the source, shortcut and target masks */
 139         SourceDC = CreateCompatibleDC(NULL);
 140         if (NULL == SourceDC) goto fail;
 141         OldSourceBitmap = SelectObject(SourceDC, SourceIconInfo.hbmMask);
 142         if (NULL == OldSourceBitmap) goto fail;
 143
 144         ShortcutDC = CreateCompatibleDC(NULL);
 145         if (NULL == ShortcutDC) goto fail;
 146         OldShortcutBitmap = SelectObject(ShortcutDC, ShortcutIconInfo.hbmMask);
 147         if (NULL == OldShortcutBitmap) goto fail;
 148
 149         TargetDC = CreateCompatibleDC(NULL);
 150         if (NULL == TargetDC) goto fail;
 151         TargetIconInfo.hbmMask = CreateCompatibleBitmap(TargetDC, SourceBitmapInfo.bmWidth,
 152                                                         SourceBitmapInfo.bmHeight);
 153         if (NULL == TargetIconInfo.hbmMask) goto fail;
 154         ScreenDC = GetDC(NULL);
 155         if (NULL == ScreenDC) goto fail;
 156         TargetIconInfo.hbmColor = CreateCompatibleBitmap(ScreenDC, SourceBitmapInfo.bmWidth,
 157                                                          SourceBitmapInfo.bmHeight);
 158         ReleaseDC(NULL, ScreenDC);
 159         if (NULL == TargetIconInfo.hbmColor) goto fail;
 160         OldTargetBitmap = SelectObject(TargetDC, TargetIconInfo.hbmMask);
 161         if (NULL == OldTargetBitmap) goto fail;
 162
 163         /* Create the target mask by ANDing the source and shortcut masks */
 164         if (! BitBlt(TargetDC, 0, 0, SourceBitmapInfo.bmWidth, SourceBitmapInfo.bmHeight,
 165                      SourceDC, 0, 0, SRCCOPY) ||
 166             ! BitBlt(TargetDC, 0, SourceBitmapInfo.bmHeight - ShortcutBitmapInfo.bmHeight,
 167                      ShortcutBitmapInfo.bmWidth, ShortcutBitmapInfo.bmHeight,
 168                      ShortcutDC, 0, 0, SRCAND))
 169         {
 170           goto fail;
 171         }
 172
 173         /* Setup the source and target xor bitmap */
 174         if (NULL == SelectObject(SourceDC, SourceIconInfo.hbmColor) ||
 175             NULL == SelectObject(TargetDC, TargetIconInfo.hbmColor))
 176         {
 177           goto fail;
 178         }
 179
 180         /* Copy the source xor bitmap to the target and clear out part of it by using
 181            the shortcut mask */
 182         if (! BitBlt(TargetDC, 0, 0, SourceBitmapInfo.bmWidth, SourceBitmapInfo.bmHeight,
 183                      SourceDC, 0, 0, SRCCOPY) ||
 184             ! BitBlt(TargetDC, 0, SourceBitmapInfo.bmHeight - ShortcutBitmapInfo.bmHeight,
 185                      ShortcutBitmapInfo.bmWidth, ShortcutBitmapInfo.bmHeight,
 186                      ShortcutDC, 0, 0, SRCAND))
 187         {
 188           goto fail;
 189         }
 190
 191         if (NULL == SelectObject(ShortcutDC, ShortcutIconInfo.hbmColor)) goto fail;
 192
 193         /* Now put in the shortcut xor mask */
 194         if (! BitBlt(TargetDC, 0, SourceBitmapInfo.bmHeight - ShortcutBitmapInfo.bmHeight,
 195                      ShortcutBitmapInfo.bmWidth, ShortcutBitmapInfo.bmHeight,
 196                      ShortcutDC, 0, 0, SRCINVERT))
 197         {
 198           goto fail;
 199         }
 200
 201         /* Clean up, we're not goto'ing to 'fail' after this so we can be lazy and not set
 202            handles to NULL */
 203         SelectObject(TargetDC, OldTargetBitmap);
 204         DeleteObject(TargetDC);
 205         SelectObject(ShortcutDC, OldShortcutBitmap);
 206         DeleteObject(ShortcutDC);
 207         SelectObject(SourceDC, OldSourceBitmap);
 208         DeleteObject(SourceDC);
 209
 210         /* Create the icon using the bitmaps prepared earlier */
 211         TargetIcon = CreateIconIndirect(&TargetIconInfo);
 212
 213         /* CreateIconIndirect copies the bitmaps, so we can release our bitmaps now */
 214         DeleteObject(TargetIconInfo.hbmColor);
 215         DeleteObject(TargetIconInfo.hbmMask);
 216
 217         return TargetIcon;
 218
 219 fail:
 220         /* Clean up scratch resources we created */
 221         if (NULL != OldTargetBitmap) SelectObject(TargetDC, OldTargetBitmap);
 222         if (NULL != TargetIconInfo.hbmColor) DeleteObject(TargetIconInfo.hbmColor);
 223         if (NULL != TargetIconInfo.hbmMask) DeleteObject(TargetIconInfo.hbmMask);
 224         if (NULL != TargetDC) DeleteObject(TargetDC);
 225         if (NULL != OldShortcutBitmap) SelectObject(ShortcutDC, OldShortcutBitmap);
 226         if (NULL != ShortcutDC) DeleteObject(ShortcutDC);
 227         if (NULL != OldSourceBitmap) SelectObject(SourceDC, OldSourceBitmap);
 228         if (NULL != SourceDC) DeleteObject(SourceDC);
 229
 230         return NULL;
 231 }
 232
 233 /*****************************************************************************
 234  * SIC_IconAppend                       [internal]
 235  *
 236  * NOTES
 237  *  appends an icon pair to the end of the cache
 238  */
 239 static INT SIC_IconAppend (LPCWSTR sSourceFile, INT dwSourceIndex, HICON hSmallIcon, HICON hBigIcon, DWORD dwFlags)
 240 {       LPSIC_ENTRY lpsice;
 241         INT ret, index, index1;
 242         WCHAR path[MAX_PATH];
 243         TRACE("%s %i %p %p\n", debugstr_w(sSourceFile), dwSourceIndex, hSmallIcon ,hBigIcon);
 244
 245         lpsice = (LPSIC_ENTRY) SHAlloc (sizeof (SIC_ENTRY));
 246
 247         GetFullPathNameW(sSourceFile, MAX_PATH, path, NULL);
 248         lpsice->sSourceFile = HeapAlloc( GetProcessHeap(), 0, (strlenW(path)+1)*sizeof(WCHAR) );
 249         strcpyW( lpsice->sSourceFile, path );
 250
 251         lpsice->dwSourceIndex = dwSourceIndex;
 252         lpsice->dwFlags = dwFlags;
 253
 254         EnterCriticalSection(&SHELL32_SicCS);
 255
 256         index = DPA_InsertPtr(sic_hdpa, 0x7fff, lpsice);
 257         if ( INVALID_INDEX == index )
 258         {
 259           HeapFree(GetProcessHeap(), 0, lpsice->sSourceFile);
 260           SHFree(lpsice);
 261           ret = INVALID_INDEX;
 262         }
 263         else
 264         {
 265           index = ImageList_AddIcon (ShellSmallIconList, hSmallIcon);
 266           index1= ImageList_AddIcon (ShellBigIconList, hBigIcon);
 267
 268           if (index!=index1)
 269           {
 270             FIXME("iconlists out of sync 0x%x 0x%x\n", index, index1);
 271           }
 272           lpsice->dwListIndex = index;
 273           ret = lpsice->dwListIndex;
 274         }
 275
 276         LeaveCriticalSection(&SHELL32_SicCS);
 277         return ret;
 278 }
 279 /****************************************************************************
 280  * SIC_LoadIcon                         [internal]
 281  *
 282  * NOTES
 283  *  gets small/big icon by number from a file
 284  */
 285 static INT SIC_LoadIcon (LPCWSTR sSourceFile, INT dwSourceIndex, DWORD dwFlags)
 286 {       HICON   hiconLarge=0;
 287         HICON   hiconSmall=0;
 288         HICON   hiconLargeShortcut;
 289         HICON   hiconSmallShortcut;
 290
 291         PrivateExtractIconsW( sSourceFile, dwSourceIndex, 32, 32, &hiconLarge, 0, 1, 0 );
 292         PrivateExtractIconsW( sSourceFile, dwSourceIndex, 16, 16, &hiconSmall, 0, 1, 0 );
 293
 294         if ( !hiconLarge ||  !hiconSmall)
 295         {
 296           WARN("failure loading icon %i from %s (%p %p)\n", dwSourceIndex, debugstr_w(sSourceFile), hiconLarge, hiconSmall);
 297           return -1;
 298         }
 299
 300         if (0 != (dwFlags & GIL_FORSHORTCUT))
 301         {
 302           hiconLargeShortcut = SIC_OverlayShortcutImage(hiconLarge);
 303           hiconSmallShortcut = SIC_OverlayShortcutImage(hiconSmall);
 304           if (NULL != hiconLargeShortcut && NULL != hiconSmallShortcut)
 305           {
 306             hiconLarge = hiconLargeShortcut;
 307             hiconSmall = hiconSmallShortcut;
 308           }
 309           else
 310           {
 311             WARN("Failed to create shortcut overlayed icons\n");
 312             if (NULL != hiconLargeShortcut) DestroyIcon(hiconLargeShortcut);
 313             if (NULL != hiconSmallShortcut) DestroyIcon(hiconSmallShortcut);
 314             dwFlags &= ~ GIL_FORSHORTCUT;
 315           }
 316         }
 317
 318         return SIC_IconAppend (sSourceFile, dwSourceIndex, hiconSmall, hiconLarge, dwFlags);
 319 }
 320 /*****************************************************************************
 321  * SIC_GetIconIndex                     [internal]
 322  *
 323  * Parameters
 324  *      sSourceFile     [IN]    filename of file containing the icon
 325  *      index           [IN]    index/resID (negated) in this file
 326  *
 327  * NOTES
 328  *  look in the cache for a proper icon. if not available the icon is taken
 329  *  from the file and cached
 330  */
 331 INT SIC_GetIconIndex (LPCWSTR sSourceFile, INT dwSourceIndex, DWORD dwFlags )
 332 {
 333         SIC_ENTRY sice;
 334         INT ret, index = INVALID_INDEX;
 335         WCHAR path[MAX_PATH];
 336
 337         TRACE("%s %i\n", debugstr_w(sSourceFile), dwSourceIndex);
 338
 339         GetFullPathNameW(sSourceFile, MAX_PATH, path, NULL);
 340         sice.sSourceFile = path;
 341         sice.dwSourceIndex = dwSourceIndex;
 342         sice.dwFlags = dwFlags;
 343
 344         EnterCriticalSection(&SHELL32_SicCS);
 345
 346         if (NULL != DPA_GetPtr (sic_hdpa, 0))
 347         {
 348           /* search linear from position 0*/
 349           index = DPA_Search (sic_hdpa, &sice, 0, SIC_CompareEntries, 0, 0);
 350         }
 351
 352         if ( INVALID_INDEX == index )
 353         {
 354           ret = SIC_LoadIcon (sSourceFile, dwSourceIndex, dwFlags);
 355         }
 356         else
 357         {
 358           TRACE("-- found\n");
 359           ret = ((LPSIC_ENTRY)DPA_GetPtr(sic_hdpa, index))->dwListIndex;
 360         }
 361
 362         LeaveCriticalSection(&SHELL32_SicCS);
 363         return ret;
 364 }
 365 /*****************************************************************************
 366  * SIC_Initialize                       [internal]
 367  */
 368 BOOL SIC_Initialize(void)
 369 {
 370         HICON           hSm, hLg;
 371         int             cx_small, cy_small;
 372         int             cx_large, cy_large;
 373
 374         cx_small = GetSystemMetrics(SM_CXSMICON);
 375         cy_small = GetSystemMetrics(SM_CYSMICON);
 376         cx_large = GetSystemMetrics(SM_CXICON);
 377         cy_large = GetSystemMetrics(SM_CYICON);
 378
 379         TRACE("\n");
 380
 381         if (sic_hdpa)   /* already initialized?*/
 382           return TRUE;
 383
 384         sic_hdpa = DPA_Create(16);
 385
 386         if (!sic_hdpa)
 387         {
 388           return(FALSE);
 389         }
 390
 391         ShellSmallIconList = ImageList_Create(cx_small,cy_small,ILC_COLOR32|ILC_MASK,0,0x20);
 392         ShellBigIconList = ImageList_Create(cx_large,cy_large,ILC_COLOR32|ILC_MASK,0,0x20);
 393
 394         ImageList_SetBkColor(ShellSmallIconList, CLR_NONE);
 395         ImageList_SetBkColor(ShellBigIconList, CLR_NONE);
 396
 397         /* Load the document icon, which is used as the default if an icon isn't found. */
 398         hSm = (HICON)LoadImageA(shell32_hInstance, MAKEINTRESOURCEA(IDI_SHELL_DOCUMENT),
 399                                 IMAGE_ICON, cx_small, cy_small, LR_SHARED);
 400         hLg = (HICON)LoadImageA(shell32_hInstance, MAKEINTRESOURCEA(IDI_SHELL_DOCUMENT),
 401                                 IMAGE_ICON, cx_large, cy_large, LR_SHARED);
 402
 403         if (!hSm || !hLg)
 404         {
 405           FIXME("Failed to load IDI_SHELL_DOCUMENT icon!\n");
 406           return FALSE;
 407         }
 408
 409         SIC_IconAppend (swShell32Name, IDI_SHELL_DOCUMENT-1, hSm, hLg, 0);
 410         SIC_IconAppend (swShell32Name, -IDI_SHELL_DOCUMENT, hSm, hLg, 0);
 411
 412         TRACE("hIconSmall=%p hIconBig=%p\n",ShellSmallIconList, ShellBigIconList);
 413
 414         return TRUE;
 415 }
 416 /*************************************************************************
 417  * SIC_Destroy
 418  *
 419  * frees the cache
 420  */
 421 static INT CALLBACK sic_free( LPVOID ptr, LPVOID lparam )
 422 {
 423         HeapFree(GetProcessHeap(), 0, ((LPSIC_ENTRY)ptr)->sSourceFile);
 424         SHFree(ptr);
 425         return TRUE;
 426 }
 427
 428 void SIC_Destroy(void)
 429 {
 430         TRACE("\n");
 431
 432         EnterCriticalSection(&SHELL32_SicCS);
 433
 434         if (sic_hdpa) DPA_DestroyCallback(sic_hdpa, sic_free, NULL );
 435
 436         sic_hdpa = NULL;
 437         ImageList_Destroy(ShellSmallIconList);
 438         ShellSmallIconList = 0;
 439         ImageList_Destroy(ShellBigIconList);
 440         ShellBigIconList = 0;
 441
 442         LeaveCriticalSection(&SHELL32_SicCS);
 443         DeleteCriticalSection(&SHELL32_SicCS);
 444 }
 445
 446 /*************************************************************************
 447  * Shell_GetImageList                   [SHELL32.71]
 448  *
 449  * PARAMETERS
 450  *  imglist[1|2] [OUT] pointer which receives imagelist handles
 451  *
 452  */
 453 BOOL WINAPI Shell_GetImageList(HIMAGELIST * lpBigList, HIMAGELIST * lpSmallList)
 454 {       TRACE("(%p,%p)\n",lpBigList,lpSmallList);
 455         if (lpBigList)
 456         { *lpBigList = ShellBigIconList;
 457         }
 458         if (lpSmallList)
 459         { *lpSmallList = ShellSmallIconList;
 460         }
 461
 462         return TRUE;
 463 }
 464 /*************************************************************************
 465  * PidlToSicIndex                       [INTERNAL]
 466  *
 467  * PARAMETERS
 468  *      sh      [IN]    IShellFolder
 469  *      pidl    [IN]
 470  *      bBigIcon [IN]
 471  *      uFlags  [IN]    GIL_*
 472  *      pIndex  [OUT]   index within the SIC
 473  *
 474  */
 475 BOOL PidlToSicIndex (
 476         IShellFolder * sh,
 477         LPCITEMIDLIST pidl,
 478         BOOL bBigIcon,
 479         UINT uFlags,
 480         int * pIndex)
 481 {
 482         IExtractIconW   *ei;
 483         WCHAR           szIconFile[MAX_PATH];   /* file containing the icon */
 484         char            szTemp[MAX_PATH];
 485         INT             iSourceIndex;           /* index or resID(negated) in this file */
 486         BOOL            ret = FALSE;
 487         UINT            dwFlags = 0;
 488         HKEY            keyCls;
 489         int             iShortcutDefaultIndex = INVALID_INDEX;
 490
 491         TRACE("sf=%p pidl=%p %s\n", sh, pidl, bBigIcon?"Big":"Small");
 492
 493         if (SUCCEEDED (IShellFolder_GetUIObjectOf(sh, 0, 1, &pidl, &IID_IExtractIconW, 0, (void **)&ei)))
 494         {
 495           if (_ILGetExtension(pidl, szTemp, MAX_PATH) &&
 496               HCR_MapTypeToValueA(szTemp, szTemp, MAX_PATH, TRUE))
 497           {
 498             if (ERROR_SUCCESS == RegOpenKeyExA(HKEY_CLASSES_ROOT, szTemp, 0, KEY_QUERY_VALUE, &keyCls))
 499             {
 500               if (ERROR_SUCCESS == RegQueryValueExA(keyCls, "IsShortcut", NULL, NULL, NULL, NULL))
 501               {
 502                 uFlags |= GIL_FORSHORTCUT;
 503               }
 504               RegCloseKey(keyCls);
 505             }
 506           }
 507           if (SUCCEEDED(IExtractIconW_GetIconLocation(ei, uFlags, szIconFile, MAX_PATH, &iSourceIndex, &dwFlags)))
 508           {
 509             *pIndex = SIC_GetIconIndex(szIconFile, iSourceIndex, uFlags);
 510             ret = TRUE;
 511           }
 512           IExtractIconW_Release(ei);
 513         }
 514
 515         if (INVALID_INDEX == *pIndex)   /* default icon when failed */
 516         {
 517           if (0 == (uFlags & GIL_FORSHORTCUT))
 518           {
 519             *pIndex = 0;
 520           }
 521           else
 522           {
 523             if (INVALID_INDEX == iShortcutDefaultIndex)
 524             {
 525               iShortcutDefaultIndex = SIC_LoadIcon(swShell32Name, 0, GIL_FORSHORTCUT);
 526             }
 527             *pIndex = (INVALID_INDEX != iShortcutDefaultIndex ? iShortcutDefaultIndex : 0);
 528           }
 529         }
 530
 531         return ret;
 532
 533 }
 534
 535 /*************************************************************************
 536  * SHMapPIDLToSystemImageListIndex      [SHELL32.77]
 537  *
 538  * PARAMETERS
 539  *      sh      [IN]            pointer to an instance of IShellFolder
 540  *      pidl    [IN]
 541  *      pIndex  [OUT][OPTIONAL] SIC index for big icon
 542  *
 543  */
 544 int WINAPI SHMapPIDLToSystemImageListIndex(
 545         IShellFolder *sh,
 546         LPCITEMIDLIST pidl,
 547         int *pIndex)
 548 {
 549         int Index;
 550
 551         TRACE("(SF=%p,pidl=%p,%p)\n",sh,pidl,pIndex);
 552         pdump(pidl);
 553
 554         if (pIndex)
 555           PidlToSicIndex ( sh, pidl, 1, 0, pIndex);
 556         PidlToSicIndex ( sh, pidl, 0, 0, &Index);
 557         return Index;
 558 }
 559
 560 /*************************************************************************
 561  * Shell_GetCachedImageIndex            [SHELL32.72]
 562  *
 563  */
 564 INT WINAPI Shell_GetCachedImageIndexA(LPCSTR szPath, INT nIndex, BOOL bSimulateDoc)
 565 {
 566         INT ret, len;
 567         LPWSTR szTemp;
 568
 569         WARN("(%s,%08x,%08x) semi-stub.\n",debugstr_a(szPath), nIndex, bSimulateDoc);
 570
 571         len = MultiByteToWideChar( CP_ACP, 0, szPath, -1, NULL, 0 );
 572         szTemp = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
 573         MultiByteToWideChar( CP_ACP, 0, szPath, -1, szTemp, len );
 574
 575         ret = SIC_GetIconIndex( szTemp, nIndex, 0 );
 576
 577         HeapFree( GetProcessHeap(), 0, szTemp );
 578
 579         return ret;
 580 }
 581
 582 INT WINAPI Shell_GetCachedImageIndexW(LPCWSTR szPath, INT nIndex, BOOL bSimulateDoc)
 583 {
 584         WARN("(%s,%08x,%08x) semi-stub.\n",debugstr_w(szPath), nIndex, bSimulateDoc);
 585
 586         return SIC_GetIconIndex(szPath, nIndex, 0);
 587 }
 588
 589 INT WINAPI Shell_GetCachedImageIndexAW(LPCVOID szPath, INT nIndex, BOOL bSimulateDoc)
 590 {       if( SHELL_OsIsUnicode())
 591           return Shell_GetCachedImageIndexW(szPath, nIndex, bSimulateDoc);
 592         return Shell_GetCachedImageIndexA(szPath, nIndex, bSimulateDoc);
 593 }
 594
 595 /*************************************************************************
 596  * ExtractIconExW                       [SHELL32.@]
 597  * RETURNS
 598  *  0 no icon found
 599  *  -1 file is not valid
 600  *  or number of icons extracted
 601  */
 602 UINT WINAPI ExtractIconExW(LPCWSTR lpszFile, INT nIconIndex, HICON * phiconLarge, HICON * phiconSmall, UINT nIcons)
 603 {
 604         TRACE("%s %i %p %p %i\n", debugstr_w(lpszFile), nIconIndex, phiconLarge, phiconSmall, nIcons);
 605
 606         return PrivateExtractIconExW(lpszFile, nIconIndex, phiconLarge, phiconSmall, nIcons);
 607 }
 608
 609 /*************************************************************************
 610  * ExtractIconExA                       [SHELL32.@]
 611  */
 612 UINT WINAPI ExtractIconExA(LPCSTR lpszFile, INT nIconIndex, HICON * phiconLarge, HICON * phiconSmall, UINT nIcons)
 613 {
 614     UINT ret = 0;
 615     INT len = MultiByteToWideChar(CP_ACP, 0, lpszFile, -1, NULL, 0);
 616     LPWSTR lpwstrFile = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
 617
 618     TRACE("%s %i %p %p %i\n", lpszFile, nIconIndex, phiconLarge, phiconSmall, nIcons);
 619
 620     if (lpwstrFile)
 621     {
 622         MultiByteToWideChar(CP_ACP, 0, lpszFile, -1, lpwstrFile, len);
 623         ret = ExtractIconExW(lpwstrFile, nIconIndex, phiconLarge, phiconSmall, nIcons);
 624         HeapFree(GetProcessHeap(), 0, lpwstrFile);
 625     }
 626     return ret;
 627 }
 628
 629 /*************************************************************************
 630  *                              ExtractAssociatedIconA (SHELL32.@)
 631  *
 632  * Return icon for given file (either from file itself or from associated
 633  * executable) and patch parameters if needed.
 634  */
 635 HICON WINAPI ExtractAssociatedIconA(HINSTANCE hInst, LPSTR lpIconPath, LPWORD lpiIcon)
 636 {
 637     HICON hIcon = NULL;
 638     INT len = MultiByteToWideChar(CP_ACP, 0, lpIconPath, -1, NULL, 0);
 639     /* Note that we need to allocate MAX_PATH, since we are supposed to fill
 640      * the correct executable if there is no icon in lpIconPath directly.
 641      * lpIconPath itself is supposed to be large enough, so make sure lpIconPathW
 642      * is large enough too. Yes, I am puking too.
 643      */
 644     LPWSTR lpIconPathW = HeapAlloc(GetProcessHeap(), 0, MAX_PATH * sizeof(WCHAR));
 645
 646     TRACE("%p %s %p\n", hInst, debugstr_a(lpIconPath), lpiIcon);
 647
 648     if (lpIconPathW)
 649     {
 650         MultiByteToWideChar(CP_ACP, 0, lpIconPath, -1, lpIconPathW, len);
 651         hIcon = ExtractAssociatedIconW(hInst, lpIconPathW, lpiIcon);
 652         WideCharToMultiByte(CP_ACP, 0, lpIconPathW, -1, lpIconPath, MAX_PATH , NULL, NULL);
 653         HeapFree(GetProcessHeap(), 0, lpIconPathW);
 654     }
 655     return hIcon;
 656 }
 657
 658 /*************************************************************************
 659  *                              ExtractAssociatedIconW (SHELL32.@)
 660  *
 661  * Return icon for given file (either from file itself or from associated
 662  * executable) and patch parameters if needed.
 663  */
 664 HICON WINAPI ExtractAssociatedIconW(HINSTANCE hInst, LPWSTR lpIconPath, LPWORD lpiIcon)
 665 {
 666     HICON hIcon = NULL;
 667     WORD wDummyIcon = 0;
 668
 669     TRACE("%p %s %p\n", hInst, debugstr_w(lpIconPath), lpiIcon);
 670
 671     if(lpiIcon == NULL)
 672         lpiIcon = &wDummyIcon;
 673
 674     hIcon = ExtractIconW(hInst, lpIconPath, *lpiIcon);
 675
 676     if( hIcon < (HICON)2 )
 677     { if( hIcon == (HICON)1 ) /* no icons found in given file */
 678       { WCHAR tempPath[MAX_PATH];
 679         HINSTANCE uRet = FindExecutableW(lpIconPath,NULL,tempPath);
 680
 681         if( uRet > (HINSTANCE)32 && tempPath[0] )
 682         { lstrcpyW(lpIconPath,tempPath);
 683           hIcon = ExtractIconW(hInst, lpIconPath, *lpiIcon);
 684           if( hIcon > (HICON)2 )
 685             return hIcon;
 686         }
 687       }
 688
 689       if( hIcon == (HICON)1 )
 690         *lpiIcon = 2;   /* MSDOS icon - we found .exe but no icons in it */
 691       else
 692         *lpiIcon = 6;   /* generic icon - found nothing */
 693
 694       if (GetModuleFileNameW(hInst, lpIconPath, MAX_PATH))
 695         hIcon = LoadIconW(hInst, MAKEINTRESOURCEW(*lpiIcon));
 696     }
 697     return hIcon;
 698 }
 699
 700 /*************************************************************************
 701  *                              ExtractAssociatedIconExW (SHELL32.@)
 702  *
 703  * Return icon for given file (either from file itself or from associated
 704  * executable) and patch parameters if needed.
 705  */
 706 HICON WINAPI ExtractAssociatedIconExW(HINSTANCE hInst, LPWSTR lpIconPath, LPWORD lpiIconIdx, LPWORD lpiIconId)
 707 {
 708   FIXME("%p %s %p %p): stub\n", hInst, debugstr_w(lpIconPath), lpiIconIdx, lpiIconId);
 709   return 0;
 710 }
 711
 712 /*************************************************************************
 713  *                              ExtractAssociatedIconExA (SHELL32.@)
 714  *
 715  * Return icon for given file (either from file itself or from associated
 716  * executable) and patch parameters if needed.
 717  */
 718 HICON WINAPI ExtractAssociatedIconExA(HINSTANCE hInst, LPSTR lpIconPath, LPWORD lpiIconIdx, LPWORD lpiIconId)
 719 {
 720   HICON ret;
 721   INT len = MultiByteToWideChar( CP_ACP, 0, lpIconPath, -1, NULL, 0 );
 722   LPWSTR lpwstrFile = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
 723
 724   TRACE("%p %s %p %p)\n", hInst, lpIconPath, lpiIconIdx, lpiIconId);
 725
 726   MultiByteToWideChar( CP_ACP, 0, lpIconPath, -1, lpwstrFile, len );
 727   ret = ExtractAssociatedIconExW(hInst, lpwstrFile, lpiIconIdx, lpiIconId);
 728   HeapFree(GetProcessHeap(), 0, lpwstrFile);
 729   return ret;
 730 }
 731
 732
 733 /****************************************************************************
 734  * SHDefExtractIconW            [SHELL32.@]
 735  */
 736 HRESULT WINAPI SHDefExtractIconW(LPCWSTR pszIconFile, int iIndex, UINT uFlags,
 737                                  HICON* phiconLarge, HICON* phiconSmall, UINT nIconSize)
 738 {
 739         UINT ret;
 740         HICON hIcons[2];
 741         WARN("%s %d 0x%08x %p %p %d, semi-stub\n", debugstr_w(pszIconFile), iIndex, uFlags, phiconLarge, phiconSmall, nIconSize);
 742
 743         ret = PrivateExtractIconsW(pszIconFile, iIndex, nIconSize, nIconSize, hIcons, NULL, 2, LR_DEFAULTCOLOR);
 744         /* FIXME: deal with uFlags parameter which contains GIL_ flags */
 745         if (ret == 0xFFFFFFFF)
 746           return E_FAIL;
 747         if (ret > 0) {
 748           *phiconLarge = hIcons[0];
 749           *phiconSmall = hIcons[1];
 750           return S_OK;
 751         }
 752         return S_FALSE;
 753 }
 754
 755 /****************************************************************************
 756  * SHDefExtractIconA            [SHELL32.@]
 757  */
 758 HRESULT WINAPI SHDefExtractIconA(LPCSTR pszIconFile, int iIndex, UINT uFlags,
 759                                  HICON* phiconLarge, HICON* phiconSmall, UINT nIconSize)
 760 {
 761   HRESULT ret;
 762   INT len = MultiByteToWideChar(CP_ACP, 0, pszIconFile, -1, NULL, 0);
 763   LPWSTR lpwstrFile = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
 764
 765   TRACE("%s %d 0x%08x %p %p %d\n", pszIconFile, iIndex, uFlags, phiconLarge, phiconSmall, nIconSize);
 766
 767   MultiByteToWideChar(CP_ACP, 0, pszIconFile, -1, lpwstrFile, len);
 768   ret = SHDefExtractIconW(lpwstrFile, iIndex, uFlags, phiconLarge, phiconSmall, nIconSize);
 769   HeapFree(GetProcessHeap(), 0, lpwstrFile);
 770   return ret;
 771 }