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Sweden-Number/dlls/shell32/iconcache.c

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/*
* shell icon cache (SIC)
*
*/
#include <string.h>
#include "wine/winuser16.h"
#include "wine/winbase16.h"
#include "neexe.h"
#include "cursoricon.h"
#include "module.h"
#include "heap.h"
#include "debug.h"
#include "sysmetrics.h"
#include "winversion.h"
#include "shell.h"
#include "shlobj.h"
#include "pidl.h"
#include "shell32_main.h"
#pragma pack(1)
typedef struct
{
BYTE bWidth; /* Width, in pixels, of the image */
BYTE bHeight; /* Height, in pixels, of the image */
BYTE bColorCount; /* Number of colors in image (0 if >=8bpp) */
BYTE bReserved; /* Reserved ( must be 0) */
WORD wPlanes; /* Color Planes */
WORD wBitCount; /* Bits per pixel */
DWORD dwBytesInRes; /* How many bytes in this resource? */
DWORD dwImageOffset; /* Where in the file is this image? */
} icoICONDIRENTRY, *LPicoICONDIRENTRY;
typedef struct
{
WORD idReserved; /* Reserved (must be 0) */
WORD idType; /* Resource Type (RES_ICON or RES_CURSOR) */
WORD idCount; /* How many images */
icoICONDIRENTRY idEntries[1]; /* An entry for each image (idCount of 'em) */
} icoICONDIR, *LPicoICONDIR;
#pragma pack(4)
#if 0
static void dumpIcoDirEnty ( LPicoICONDIRENTRY entry )
{
TRACE (shell, "width = 0x%08x height = 0x%08x\n", entry->bWidth, entry->bHeight);
TRACE (shell, "colors = 0x%08x planes = 0x%08x\n", entry->bColorCount, entry->wPlanes);
TRACE (shell, "bitcount = 0x%08x bytesinres = 0x%08lx offset = 0x%08lx\n",
entry->wBitCount, entry->dwBytesInRes, entry->dwImageOffset);
}
static void dumpIcoDir ( LPicoICONDIR entry )
{
TRACE (shell, "type = 0x%08x count = 0x%08x\n", entry->idType, entry->idCount);
}
#endif
/*************************************************************************
* SHELL_GetResourceTable
*/
static DWORD SHELL_GetResourceTable(HFILE hFile, LPBYTE *retptr)
{ IMAGE_DOS_HEADER mz_header;
char magic[4];
int size;
TRACE(shell,"0x%08x %p\n", hFile, retptr);
*retptr = NULL;
_llseek( hFile, 0, SEEK_SET );
if ((_lread(hFile,&mz_header,sizeof(mz_header)) != sizeof(mz_header)) || (mz_header.e_magic != IMAGE_DOS_SIGNATURE))
{ if (mz_header.e_cblp == 1) /* .ICO file ? */
{ *retptr = (LPBYTE)-1; /* ICONHEADER.idType, must be 1 */
return 1;
}
else
return 0; /* failed */
}
_llseek( hFile, mz_header.e_lfanew, SEEK_SET );
if (_lread( hFile, magic, sizeof(magic) ) != sizeof(magic))
return 0;
_llseek( hFile, mz_header.e_lfanew, SEEK_SET);
if (*(DWORD*)magic == IMAGE_NT_SIGNATURE)
return IMAGE_NT_SIGNATURE;
if (*(WORD*)magic == IMAGE_OS2_SIGNATURE)
{ IMAGE_OS2_HEADER ne_header;
LPBYTE pTypeInfo = (LPBYTE)-1;
if (_lread(hFile,&ne_header,sizeof(ne_header))!=sizeof(ne_header))
return 0;
if (ne_header.ne_magic != IMAGE_OS2_SIGNATURE)
return 0;
size = ne_header.rname_tab_offset - ne_header.resource_tab_offset;
if( size > sizeof(NE_TYPEINFO) )
{ pTypeInfo = (BYTE*)HeapAlloc( GetProcessHeap(), 0, size);
if( pTypeInfo )
{ _llseek(hFile, mz_header.e_lfanew+ne_header.resource_tab_offset, SEEK_SET);
if( _lread( hFile, (char*)pTypeInfo, size) != size )
{ HeapFree( GetProcessHeap(), 0, pTypeInfo);
pTypeInfo = NULL;
}
}
}
*retptr = pTypeInfo;
return IMAGE_OS2_SIGNATURE;
}
return 0; /* failed */
}
/*************************************************************************
* SHELL_LoadResource
*/
static BYTE * SHELL_LoadResource( HFILE hFile, NE_NAMEINFO* pNInfo, WORD sizeShift, ULONG *uSize)
{ BYTE* ptr;
TRACE(shell,"0x%08x %p 0x%08x\n", hFile, pNInfo, sizeShift);
*uSize = (DWORD)pNInfo->length << sizeShift;
if( (ptr = (BYTE*)HeapAlloc(GetProcessHeap(),0, *uSize) ))
{ _llseek( hFile, (DWORD)pNInfo->offset << sizeShift, SEEK_SET);
_lread( hFile, (char*)ptr, pNInfo->length << sizeShift);
return ptr;
}
return 0;
}
/*************************************************************************
* ICO_LoadIcon
*/
static BYTE * ICO_LoadIcon( HFILE hFile, LPicoICONDIRENTRY lpiIDE, ULONG *uSize)
{ BYTE* ptr;
TRACE(shell,"0x%08x %p\n", hFile, lpiIDE);
*uSize = lpiIDE->dwBytesInRes;
if( (ptr = (BYTE*)HeapAlloc(GetProcessHeap(),0, *uSize)) )
{ _llseek( hFile, lpiIDE->dwImageOffset, SEEK_SET);
_lread( hFile, (char*)ptr, lpiIDE->dwBytesInRes);
return ptr;
}
return 0;
}
/*************************************************************************
* ICO_GetIconDirectory
*
* Reads .ico file and build phony ICONDIR struct
* see http://www.microsoft.com/win32dev/ui/icons.htm
*/
#define HEADER_SIZE (sizeof(CURSORICONDIR) - sizeof (CURSORICONDIRENTRY))
#define HEADER_SIZE_FILE (sizeof(icoICONDIR) - sizeof (icoICONDIRENTRY))
static BYTE * ICO_GetIconDirectory( HFILE hFile, LPicoICONDIR* lplpiID, ULONG *uSize )
{ CURSORICONDIR lpcid; /* icon resource in resource-dir format */
LPicoICONDIR lpiID; /* icon resource in file format */
int i;
TRACE(shell,"0x%08x %p\n", hFile, lplpiID);
_llseek( hFile, 0, SEEK_SET );
if( _lread(hFile,(char*)&lpcid, HEADER_SIZE_FILE) != HEADER_SIZE_FILE )
return 0;
if( lpcid.idReserved || (lpcid.idType != 1) || (!lpcid.idCount) )
return 0;
i = lpcid.idCount * sizeof(icoICONDIRENTRY);
lpiID = (LPicoICONDIR)HeapAlloc( GetProcessHeap(), 0, HEADER_SIZE_FILE + i);
if( _lread(hFile,(char*)lpiID->idEntries,i) == i )
{ CURSORICONDIR * lpID; /* icon resource in resource format */
*uSize = lpcid.idCount * sizeof(CURSORICONDIRENTRY) + HEADER_SIZE;
if( (lpID = (CURSORICONDIR*)HeapAlloc(GetProcessHeap(),0, *uSize) ))
{
/* copy the header */
lpID->idReserved = lpiID->idReserved = 0;
lpID->idType = lpiID->idType = 1;
lpID->idCount = lpiID->idCount = lpcid.idCount;
/* copy the entrys */
for( i=0; i < lpiID->idCount; i++ )
{ memcpy((void*)&(lpID->idEntries[i]),(void*)&(lpiID->idEntries[i]), sizeof(CURSORICONDIRENTRY) - 2);
lpID->idEntries[i].wResId = i;
}
*lplpiID = lpiID;
return (BYTE *)lpID;
}
}
/* fail */
HeapFree( GetProcessHeap(), 0, lpiID);
return 0;
}
/*************************************************************************
* InternalExtractIcon [SHELL.39]
*
* This abortion is called directly by Progman
* fixme: the icon section is broken (don't have a handle for
* ICO_GetIconDirectory....)
*
*/
#define ICO_INVALID_FILE 1
#define ICO_NO_ICONS 0
HGLOBAL WINAPI ICO_ExtractIconEx(LPCSTR lpszExeFileName, HICON * RetPtr, UINT nIconIndex, UINT n, UINT cxDesired, UINT cyDesired )
{ HGLOBAL hRet = ICO_NO_ICONS;
LPBYTE pData;
OFSTRUCT ofs;
DWORD sig;
HFILE hFile = OpenFile( lpszExeFileName, &ofs, OF_READ );
UINT16 iconDirCount = 0,iconCount = 0;
LPBYTE peimage;
HANDLE fmapping;
ULONG uSize;
TRACE(shell,"(file %s,start %d,extract %d\n", lpszExeFileName, nIconIndex, n);
if( hFile == HFILE_ERROR || !n )
return ICO_INVALID_FILE;
sig = SHELL_GetResourceTable(hFile,&pData);
/* ico file */
if( sig==IMAGE_OS2_SIGNATURE || sig==1 ) /* .ICO file */
{ BYTE *pCIDir = 0;
NE_TYPEINFO *pTInfo = (NE_TYPEINFO*)(pData + 2);
NE_NAMEINFO *pIconStorage = NULL;
NE_NAMEINFO *pIconDir = NULL;
LPicoICONDIR lpiID = NULL;
TRACE(shell,"-- OS2/icon Signature (0x%08lx)\n", sig);
if( pData == (BYTE*)-1 )
{ pCIDir = ICO_GetIconDirectory(hFile, &lpiID, &uSize); /* check for .ICO file */
if( pCIDir )
{ iconDirCount = 1; iconCount = lpiID->idCount;
TRACE(shell,"-- icon found %p 0x%08lx 0x%08x 0x%08x\n", pCIDir, uSize, iconDirCount, iconCount);
}
}
else while( pTInfo->type_id && !(pIconStorage && pIconDir) )
{ if( pTInfo->type_id == NE_RSCTYPE_GROUP_ICON ) /* find icon directory and icon repository */
{ iconDirCount = pTInfo->count;
pIconDir = ((NE_NAMEINFO*)(pTInfo + 1));
TRACE(shell,"\tfound directory - %i icon families\n", iconDirCount);
}
if( pTInfo->type_id == NE_RSCTYPE_ICON )
{ iconCount = pTInfo->count;
pIconStorage = ((NE_NAMEINFO*)(pTInfo + 1));
TRACE(shell,"\ttotal icons - %i\n", iconCount);
}
pTInfo = (NE_TYPEINFO *)((char*)(pTInfo+1)+pTInfo->count*sizeof(NE_NAMEINFO));
}
if( (pIconStorage && pIconDir) || lpiID ) /* load resources and create icons */
{ if( nIconIndex == (UINT16)-1 )
{ RetPtr[0] = iconDirCount;
}
else if( nIconIndex < iconDirCount )
{ UINT16 i, icon;
if( n > iconDirCount - nIconIndex )
n = iconDirCount - nIconIndex;
for( i = nIconIndex; i < nIconIndex + n; i++ )
{ /* .ICO files have only one icon directory */
if( lpiID == NULL ) /* *.ico */
pCIDir = SHELL_LoadResource( hFile, pIconDir + i, *(WORD*)pData, &uSize );
RetPtr[i-nIconIndex] = pLookupIconIdFromDirectoryEx( pCIDir, TRUE, SYSMETRICS_CXICON, SYSMETRICS_CYICON, 0);
HeapFree(GetProcessHeap(), 0, pCIDir);
}
for( icon = nIconIndex; icon < nIconIndex + n; icon++ )
{ pCIDir = NULL;
if( lpiID )
{ pCIDir = ICO_LoadIcon( hFile, lpiID->idEntries + RetPtr[icon-nIconIndex], &uSize);
}
else
{ for( i = 0; i < iconCount; i++ )
{ if( pIconStorage[i].id == (RetPtr[icon-nIconIndex] | 0x8000) )
{ pCIDir = SHELL_LoadResource( hFile, pIconStorage + i,*(WORD*)pData, &uSize );
}
}
}
if( pCIDir )
{ RetPtr[icon-nIconIndex] = (HICON) pCreateIconFromResourceEx(pCIDir,uSize,TRUE,0x00030000, cxDesired, cyDesired, LR_DEFAULTCOLOR);
}
else
{ RetPtr[icon-nIconIndex] = 0;
}
}
}
}
if( lpiID )
HeapFree( GetProcessHeap(), 0, lpiID);
else
HeapFree( GetProcessHeap(), 0, pData);
}
/* end ico file */
/* exe/dll */
if( sig == IMAGE_NT_SIGNATURE)
{ LPBYTE idata,igdata;
PIMAGE_DOS_HEADER dheader;
PIMAGE_NT_HEADERS pe_header;
PIMAGE_SECTION_HEADER pe_sections;
PIMAGE_RESOURCE_DIRECTORY rootresdir,iconresdir,icongroupresdir;
PIMAGE_RESOURCE_DATA_ENTRY idataent,igdataent;
PIMAGE_RESOURCE_DIRECTORY_ENTRY xresent;
int i,j;
if ( !(fmapping = CreateFileMappingA(hFile,NULL,PAGE_READONLY|SEC_COMMIT,0,0,NULL)))
{ WARN(shell,"failed to create filemap.\n"); /* FIXME, INVALID_HANDLE_VALUE? */
hRet = ICO_INVALID_FILE;
goto end_2; /* failure */
}
if ( !(peimage = MapViewOfFile(fmapping,FILE_MAP_READ,0,0,0)))
{ WARN(shell,"failed to mmap filemap.\n");
hRet = ICO_INVALID_FILE;
goto end_2; /* failure */
}
dheader = (PIMAGE_DOS_HEADER)peimage;
pe_header = (PIMAGE_NT_HEADERS)(peimage+dheader->e_lfanew); /* it is a pe header, SHELL_GetResourceTable checked that */
pe_sections = (PIMAGE_SECTION_HEADER)(((char*)pe_header)+sizeof(*pe_header)); /* probably makes problems with short PE headers...*/
rootresdir = NULL;
for (i=0;i<pe_header->FileHeader.NumberOfSections;i++)
{ if (pe_sections[i].Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA)
continue;
/* FIXME: doesn't work when the resources are not in a seperate section */
if (pe_sections[i].VirtualAddress == pe_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress)
{ rootresdir = (PIMAGE_RESOURCE_DIRECTORY)((char*)peimage+pe_sections[i].PointerToRawData);
break;
}
}
if (!rootresdir)
{ WARN(shell,"haven't found section for resource directory.\n");
goto end_4; /* failure */
}
/* search the group icon dir*/
if (!(icongroupresdir = GetResDirEntryW(rootresdir,RT_GROUP_ICONW, (DWORD)rootresdir,FALSE)))
{ WARN(shell,"No Icongroupresourcedirectory!\n");
goto end_4; /* failure */
}
iconDirCount = icongroupresdir->NumberOfNamedEntries+icongroupresdir->NumberOfIdEntries;
/* number of icons requested */
if( nIconIndex == -1 )
{ hRet = iconDirCount;
goto end_3; /* success */
}
if (nIconIndex >= iconDirCount)
{ WARN(shell,"nIconIndex %d is larger than iconDirCount %d\n",nIconIndex,iconDirCount);
goto end_4; /* failure */
}
xresent = (PIMAGE_RESOURCE_DIRECTORY_ENTRY)(icongroupresdir+1); /* caller just wanted the number of entries */
if( n > iconDirCount - nIconIndex ) /* assure we don't get too much ... */
{ n = iconDirCount - nIconIndex;
}
xresent = xresent+nIconIndex; /* starting from specified index ... */
for (i=0;i<n;i++,xresent++)
{ PIMAGE_RESOURCE_DIRECTORY resdir;
/* go down this resource entry, name */
resdir = (PIMAGE_RESOURCE_DIRECTORY)((DWORD)rootresdir+(xresent->u2.s.OffsetToDirectory));
/* default language (0) */
resdir = GetResDirEntryW(resdir,(LPWSTR)0,(DWORD)rootresdir,TRUE);
igdataent = (PIMAGE_RESOURCE_DATA_ENTRY)resdir;
/* lookup address in mapped image for virtual address */
igdata = NULL;
for (j=0;j<pe_header->FileHeader.NumberOfSections;j++)
{ if (igdataent->OffsetToData < pe_sections[j].VirtualAddress)
continue;
if (igdataent->OffsetToData+igdataent->Size > pe_sections[j].VirtualAddress+pe_sections[j].SizeOfRawData)
continue;
igdata = peimage+(igdataent->OffsetToData-pe_sections[j].VirtualAddress+pe_sections[j].PointerToRawData);
}
if (!igdata)
{ WARN(shell,"no matching real address for icongroup!\n");
goto end_4; /* failure */
}
RetPtr[i] = (HICON)pLookupIconIdFromDirectoryEx(igdata, TRUE, cxDesired, cyDesired, LR_DEFAULTCOLOR);
}
if (!(iconresdir=GetResDirEntryW(rootresdir,RT_ICONW,(DWORD)rootresdir,FALSE)))
{ WARN(shell,"No Iconresourcedirectory!\n");
goto end_4; /* failure */
}
for (i=0;i<n;i++)
{ PIMAGE_RESOURCE_DIRECTORY xresdir;
xresdir = GetResDirEntryW(iconresdir,(LPWSTR)(DWORD)RetPtr[i],(DWORD)rootresdir,FALSE);
xresdir = GetResDirEntryW(xresdir,(LPWSTR)0,(DWORD)rootresdir,TRUE);
idataent = (PIMAGE_RESOURCE_DATA_ENTRY)xresdir;
idata = NULL;
/* map virtual to address in image */
for (j=0;j<pe_header->FileHeader.NumberOfSections;j++)
{ if (idataent->OffsetToData < pe_sections[j].VirtualAddress)
continue;
if (idataent->OffsetToData+idataent->Size > pe_sections[j].VirtualAddress+pe_sections[j].SizeOfRawData)
continue;
idata = peimage+(idataent->OffsetToData-pe_sections[j].VirtualAddress+pe_sections[j].PointerToRawData);
}
if (!idata)
{ WARN(shell,"no matching real address found for icondata!\n");
RetPtr[i]=0;
continue;
}
RetPtr[i] = (HICON) pCreateIconFromResourceEx(idata,idataent->Size,TRUE,0x00030000, cxDesired, cyDesired, LR_DEFAULTCOLOR);
}
hRet = RetPtr[0]; /* return first icon */
goto end_3; /* sucess */
}
hRet = ICO_INVALID_FILE;
goto end_1; /* unknown filetype */
/* cleaning up (try & catch would be nicer:-) ) */
end_4: hRet = 0; /* failure */
end_3: UnmapViewOfFile(peimage); /* success */
end_2: CloseHandle(fmapping);
end_1: _lclose( hFile);
return hRet;
}
/********************** THE ICON CACHE ********************************/
HIMAGELIST ShellSmallIconList = 0;
HIMAGELIST ShellBigIconList = 0;
HDPA hdpa=0;
#define INVALID_INDEX -1
typedef struct
{ LPCSTR sSourceFile; /* file (not path!) containing the icon */
DWORD dwSourceIndex; /* index within the file, if it is a resoure ID it will be negated */
DWORD dwListIndex; /* index within the iconlist */
DWORD dwFlags; /* GIL_* flags */
DWORD dwAccessTime;
} SIC_ENTRY, * LPSIC_ENTRY;
/*****************************************************************************
* SIC_CompareEntrys [called by comctl32.dll]
*
* NOTES
* Callback for DPA_Search
*/
INT CALLBACK SIC_CompareEntrys( LPVOID p1, LPVOID p2, LPARAM lparam)
{ TRACE(shell,"%p %p\n", p1, p2);
if (((LPSIC_ENTRY)p1)->dwSourceIndex != ((LPSIC_ENTRY)p2)->dwSourceIndex) /* first the faster one*/
return 1;
if (strcasecmp(((LPSIC_ENTRY)p1)->sSourceFile,((LPSIC_ENTRY)p2)->sSourceFile))
return 1;
return 0;
}
/*****************************************************************************
* SIC_IconAppend [internal]
*
* NOTES
* appends a icon pair to the end of the cache
*/
static INT SIC_IconAppend (LPCSTR sSourceFile, INT dwSourceIndex, HICON hSmallIcon, HICON hBigIcon)
{ LPSIC_ENTRY lpsice;
INT index, index1;
TRACE(shell,"%s %i %x %x\n", sSourceFile, dwSourceIndex, hSmallIcon ,hBigIcon);
lpsice = (LPSIC_ENTRY) SHAlloc (sizeof (SIC_ENTRY));
lpsice->sSourceFile = HEAP_strdupA (GetProcessHeap(), 0, PathFindFilenameA(sSourceFile));
lpsice->dwSourceIndex = dwSourceIndex;
index = pDPA_InsertPtr(hdpa, 0x7fff, lpsice);
if ( INVALID_INDEX == index )
{ SHFree(lpsice);
return INVALID_INDEX;
}
index = pImageList_AddIcon (ShellSmallIconList, hSmallIcon);
index1= pImageList_AddIcon (ShellBigIconList, hBigIcon);
if (index!=index1)
{ FIXME(shell,"iconlists out of sync 0x%x 0x%x\n", index, index1);
}
lpsice->dwListIndex = index;
return lpsice->dwListIndex;
}
/****************************************************************************
* SIC_LoadIcon [internal]
*
* NOTES
* gets small/big icon by number from a file
*/
static INT SIC_LoadIcon (LPCSTR sSourceFile, INT dwSourceIndex)
{ HICON hiconLarge=0;
HICON hiconSmall=0;
ICO_ExtractIconEx(sSourceFile, &hiconLarge, dwSourceIndex, 1, 32, 32 );
ICO_ExtractIconEx(sSourceFile, &hiconSmall, dwSourceIndex, 1, 16, 16 );
if ( !hiconLarge || !hiconSmall)
{ WARN(shell, "failure loading icon %i from %s (%x %x)\n", dwSourceIndex, sSourceFile, hiconLarge, hiconSmall);
return -1;
}
return SIC_IconAppend (sSourceFile, dwSourceIndex, hiconSmall, hiconLarge);
}
/*****************************************************************************
* SIC_GetIconIndex [internal]
*
* Parameters
* sSourceFile [IN] filename of file containing the icon
* index [IN] index/resID (negated) in this file
*
* NOTES
* look in the cache for a proper icon. if not available the icon is taken
* from the file and cached
*/
INT SIC_GetIconIndex (LPCSTR sSourceFile, INT dwSourceIndex )
{ SIC_ENTRY sice;
INT index = INVALID_INDEX;
TRACE(shell,"%s %i\n", sSourceFile, dwSourceIndex);
sice.sSourceFile = PathFindFilenameA(sSourceFile);
sice.dwSourceIndex = dwSourceIndex;
if (NULL != pDPA_GetPtr (hdpa, 0))
{ index = pDPA_Search (hdpa, &sice, -1L, SIC_CompareEntrys, 0, 0);
}
if ( INVALID_INDEX == index )
{ return SIC_LoadIcon (sSourceFile, dwSourceIndex);
}
TRACE(shell, "-- found\n");
return ((LPSIC_ENTRY)pDPA_GetPtr(hdpa, index))->dwListIndex;
}
/****************************************************************************
* SIC_LoadIcon [internal]
*
* NOTES
* retrives the specified icon from the iconcache. if not found try's to load the icon
*/
static HICON WINE_UNUSED SIC_GetIcon (LPCSTR sSourceFile, INT dwSourceIndex, BOOL bSmallIcon )
{ INT index;
TRACE(shell,"%s %i\n", sSourceFile, dwSourceIndex);
index = SIC_GetIconIndex(sSourceFile, dwSourceIndex);
if (INVALID_INDEX == index)
{ return INVALID_INDEX;
}
if (bSmallIcon)
return pImageList_GetIcon(ShellSmallIconList, index, ILD_NORMAL);
return pImageList_GetIcon(ShellBigIconList, index, ILD_NORMAL);
}
/*****************************************************************************
* SIC_Initialize [internal]
*
* NOTES
* hack to load the resources from the shell32.dll under a different dll name
* will be removed when the resource-compiler is ready
*/
BOOL SIC_Initialize(void)
{ CHAR szShellPath[MAX_PATH];
HGLOBAL hSmRet, hLgRet;
HICON *pSmRet, *pLgRet;
UINT index;
TRACE(shell,"\n");
if (hdpa) /* already initialized?*/
return TRUE;
hdpa = pDPA_Create(16);
if (!hdpa)
{ return(FALSE);
}
GetSystemDirectoryA(szShellPath,MAX_PATH);
PathAddBackslashA(szShellPath);
strcat(szShellPath,"shell32.dll");
hSmRet = GlobalAlloc( GMEM_FIXED | GMEM_ZEROINIT, sizeof(HICON)*40);
hLgRet = GlobalAlloc( GMEM_FIXED | GMEM_ZEROINIT, sizeof(HICON)*40);
pSmRet = (HICON*)GlobalLock(hSmRet);
pLgRet = (HICON*)GlobalLock(hLgRet);
ExtractIconExA ( szShellPath, 0, pLgRet, pSmRet, 40 );
ShellSmallIconList = pImageList_Create(16,16,ILC_COLORDDB | ILC_MASK,0,0x20);
ShellBigIconList = pImageList_Create(32,32,ILC_COLORDDB | ILC_MASK,0,0x20);
for (index=0; index<40; index++)
{ if (! pSmRet[index] )
{ MSG("*** failure loading resources from %s\n", szShellPath );
MSG("*** this is a hack for loading the internal and external dll at the same time\n");
MSG("*** you can ignore it but you will miss some icons in win95 dialogs\n\n");
break;
}
SIC_IconAppend (szShellPath, index, pSmRet[index], pLgRet[index]);
}
GlobalUnlock(hLgRet);
GlobalFree(hLgRet);
GlobalUnlock(hSmRet);
GlobalFree(hSmRet);
TRACE(shell,"hIconSmall=%p hIconBig=%p\n",ShellSmallIconList, ShellBigIconList);
return TRUE;
}
/*************************************************************************
* SIC_Destroy
*
* frees the cache
*/
void SIC_Destroy(void)
{
LPSIC_ENTRY lpsice;
int i;
if (hdpa && NULL != pDPA_GetPtr (hdpa, 0))
{ for (i=0; i < pDPA_GetPtrCount(hdpa); ++i)
{ lpsice = pDPA_GetPtr(hdpa, i);
SHFree(lpsice);
}
pDPA_Destroy(hdpa);
}
}
/*************************************************************************
* Shell_GetImageList [SHELL32.71]
*
* PARAMETERS
* imglist[1|2] [OUT] pointer which recive imagelist handles
*
*/
BOOL WINAPI Shell_GetImageList(HIMAGELIST * lpBigList, HIMAGELIST * lpSmallList)
{ TRACE(shell,"(%p,%p)\n",lpBigList,lpSmallList);
if (lpBigList)
{ *lpBigList = ShellBigIconList;
}
if (lpSmallList)
{ *lpSmallList = ShellSmallIconList;
}
return TRUE;
}
/*************************************************************************
* PidlToSicIndex [INTERNAL]
*
* PARAMETERS
* sh [IN] IShellFolder
* pidl [IN]
* bBigIcon [IN]
* pIndex [OUT] index within the SIC
*
*/
BOOL PidlToSicIndex (IShellFolder * sh, LPITEMIDLIST pidl, BOOL bBigIcon, UINT * pIndex)
{
IExtractIcon *ei;
char szIconFile[MAX_PATH]; /* file containing the icon */
INT iSourceIndex; /* index or resID(negated) in this file */
BOOL ret = FALSE;
UINT dwFlags = 0;
if (SUCCEEDED (IShellFolder_GetUIObjectOf(sh, 0, 1, &pidl, &IID_IExtractIconA, 0, (void **)&ei)))
{
if (SUCCEEDED (IExtractIconA_GetIconLocation(ei, 0, szIconFile, MAX_PATH, &iSourceIndex, &dwFlags)))
{ *pIndex = SIC_GetIconIndex(szIconFile, iSourceIndex);
ret = TRUE;
}
IExtractIconA_Release(ei);
}
if (INVALID_INDEX == *pIndex) /* default icon when failed */
*pIndex = 1;
return ret;
}
/*************************************************************************
* SHMapPIDLToSystemImageListIndex [SHELL32.77]
*
* PARAMETERS
* sh [IN] pointer to an instance of IShellFolder
* pidl [IN]
* pIndex [OUT][OPTIONAL] SIC index for big icon
*
*/
UINT WINAPI SHMapPIDLToSystemImageListIndex(LPSHELLFOLDER sh, LPITEMIDLIST pidl, UINT * pIndex)
{
UINT Index;
WARN(shell,"(SF=%p,pidl=%p,%p)\n",sh,pidl,pIndex);
pdump(pidl);
if (pIndex)
PidlToSicIndex ( sh, pidl, 1, pIndex);
PidlToSicIndex ( sh, pidl, 0, &Index);
return Index;
}
/*************************************************************************
* Shell_GetCachedImageIndex [SHELL32.72]
*
*/
INT WINAPI Shell_GetCachedImageIndexA(LPCSTR szPath, INT nIndex, BOOL bSimulateDoc)
{
WARN(shell,"(%s,%08x,%08x) semi-stub.\n",debugstr_a(szPath), nIndex, bSimulateDoc);
return SIC_GetIconIndex(szPath, nIndex);
}
INT WINAPI Shell_GetCachedImageIndexW(LPCWSTR szPath, INT nIndex, BOOL bSimulateDoc)
{ INT ret;
LPSTR sTemp = HEAP_strdupWtoA (GetProcessHeap(),0,szPath);
WARN(shell,"(%s,%08x,%08x) semi-stub.\n",debugstr_w(szPath), nIndex, bSimulateDoc);
ret = SIC_GetIconIndex(sTemp, nIndex);
HeapFree(GetProcessHeap(),0,sTemp);
return ret;
}
INT WINAPI Shell_GetCachedImageIndexAW(LPCVOID szPath, INT nIndex, BOOL bSimulateDoc)
{ if( VERSION_OsIsUnicode())
return Shell_GetCachedImageIndexW(szPath, nIndex, bSimulateDoc);
return Shell_GetCachedImageIndexA(szPath, nIndex, bSimulateDoc);
}
/*************************************************************************
* ExtracticonExAW [shell32.189]
*/
HICON WINAPI ExtractIconExAW ( LPCVOID lpszFile, INT nIconIndex, HICON * phiconLarge, HICON * phiconSmall, UINT nIcons )
{ if (VERSION_OsIsUnicode())
return ExtractIconExW ( lpszFile, nIconIndex, phiconLarge, phiconSmall, nIcons);
return ExtractIconExA ( lpszFile, nIconIndex, phiconLarge, phiconSmall, nIcons);
}
/*************************************************************************
* ExtracticonExA [shell32.190]
* RETURNS
* 0 no icon found
* 1 file is not valid
* HICON handle of a icon (phiconLarge/Small == NULL)
*/
HICON WINAPI ExtractIconExA ( LPCSTR lpszFile, INT nIconIndex, HICON * phiconLarge, HICON * phiconSmall, UINT nIcons )
{ HICON ret=0;
TRACE(shell,"file=%s idx=%i %p %p num=%i\n", lpszFile, nIconIndex, phiconLarge, phiconSmall, nIcons );
if (nIconIndex==-1) /* Number of icons requested */
return ICO_ExtractIconEx(lpszFile, NULL, -1, 0, 0, 0 );
if (phiconLarge)
{ ret = ICO_ExtractIconEx(lpszFile, phiconLarge, nIconIndex, nIcons, 32, 32 );
if ( nIcons==1)
{ ret = phiconLarge[0];
}
}
/* if no pointers given and one icon expected, return the handle directly*/
if (!phiconLarge && ! phiconSmall && nIcons==1 )
phiconSmall = &ret;
if (phiconSmall)
{ ret = ICO_ExtractIconEx(lpszFile, phiconSmall, nIconIndex, nIcons, 16, 16 );
if ( nIcons==1 )
{ ret = phiconSmall[0];
}
}
return ret;
}
/*************************************************************************
* ExtracticonExW [shell32.191]
*/
HICON WINAPI ExtractIconExW ( LPCWSTR lpszFile, INT nIconIndex, HICON * phiconLarge, HICON * phiconSmall, UINT nIcons )
{ LPSTR sFile;
DWORD ret;
TRACE(shell,"file=%s idx=%i %p %p num=%i\n", debugstr_w(lpszFile), nIconIndex, phiconLarge, phiconSmall, nIcons );
sFile = HEAP_strdupWtoA (GetProcessHeap(),0,lpszFile);
ret = ExtractIconExA ( sFile, nIconIndex, phiconLarge, phiconSmall, nIcons);
HeapFree(GetProcessHeap(),0,sFile);
return ret;
}
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