/*****************************************************************************
* 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 ret, index = INVALID_INDEX;
TRACE("%s %i\n", sSourceFile, dwSourceIndex);
sice.sSourceFile = PathFindFileNameA(sSourceFile);
sice.dwSourceIndex = dwSourceIndex;
EnterCriticalSection(&SHELL32_SicCS);
if (NULL != pDPA_GetPtr (sic_hdpa, 0))
{
/* search linear from position 0*/
index = pDPA_Search (sic_hdpa, &sice, 0, SIC_CompareEntries, 0, 0);
}
if ( INVALID_INDEX == index )
{
ret = SIC_LoadIcon (sSourceFile, dwSourceIndex);
}
else
{
TRACE("-- found\n");
ret = ((LPSIC_ENTRY)pDPA_GetPtr(sic_hdpa, index))->dwListIndex;
}
LeaveCriticalSection(&SHELL32_SicCS);
return ret;
}
static BOOL CheckDPA(HDPA dpa, DWORD dwIn, PDWORD pdwOut)
{
DWORD dwOut = 0;
INT i;
for(i = 0; i < 8;)
{
ULONG_PTR ulItem = (ULONG_PTR)pDPA_GetPtr(dpa, i++);
if(!ulItem) break;
dwOut = dwOut << 4 | (ulItem & 0xf);
}
*pdwOut = dwOut;
if(dwOut != dwIn)
{
pDPA_DeleteAllPtrs(dpa);
do
{
pDPA_InsertPtr(dpa, 0, (PVOID)(ULONG_PTR)(dwIn & 0xf));
dwIn >>= 4;
}
while(dwIn);
return FALSE;
}
/*************************************************************************
* SIC_Destroy
*
* frees the cache
*/
void SIC_Destroy(void)
{
LPSIC_ENTRY lpsice;
int i;
TRACE("\n");
EnterCriticalSection(&SHELL32_SicCS);
if (sic_hdpa && NULL != pDPA_GetPtr (sic_hdpa, 0))
{
for (i=0; i < pDPA_GetPtrCount(sic_hdpa); ++i)
{
lpsice = pDPA_GetPtr(sic_hdpa, i);
SHFree(lpsice);
}
pDPA_Destroy(sic_hdpa);
}
sic_hdpa = NULL;
LeaveCriticalSection(&SHELL32_SicCS);
DeleteCriticalSection(&SHELL32_SicCS);
}
