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// SysIconUtils.cpp
#include "StdAfx.h"
#ifndef _UNICODE
#include "Common/StringConvert.h"
#endif
#include "SysIconUtils.h"
#ifndef _UNICODE
extern bool g_IsNT;
#endif
int GetIconIndexForCSIDL(int csidl)
{
LPITEMIDLIST pidl = 0;
SHGetSpecialFolderLocation(NULL, csidl, &pidl);
if (pidl)
{
SHFILEINFO shellInfo;
SHGetFileInfo(LPCTSTR(pidl), FILE_ATTRIBUTE_NORMAL,
&shellInfo, sizeof(shellInfo),
SHGFI_PIDL | SHGFI_SYSICONINDEX);
IMalloc *pMalloc;
SHGetMalloc(&pMalloc);
if (pMalloc)
{
pMalloc->Free(pidl);
pMalloc->Release();
}
return shellInfo.iIcon;
}
return 0;
}
#ifndef _UNICODE
typedef int (WINAPI * SHGetFileInfoWP)(LPCWSTR pszPath, DWORD attrib, SHFILEINFOW *psfi, UINT cbFileInfo, UINT uFlags);
struct CSHGetFileInfoInit
{
SHGetFileInfoWP shGetFileInfoW;
CSHGetFileInfoInit()
{
shGetFileInfoW = (SHGetFileInfoWP)
::GetProcAddress(::GetModuleHandleW(L"shell32.dll"), "SHGetFileInfoW");
}
} g_SHGetFileInfoInit;
#endif
static DWORD_PTR MySHGetFileInfoW(LPCWSTR pszPath, DWORD attrib, SHFILEINFOW *psfi, UINT cbFileInfo, UINT uFlags)
{
#ifdef _UNICODE
return SHGetFileInfo(
#else
if (g_SHGetFileInfoInit.shGetFileInfoW == 0)
return 0;
return g_SHGetFileInfoInit.shGetFileInfoW(
#endif
pszPath, attrib, psfi, cbFileInfo, uFlags);
}
DWORD_PTR GetRealIconIndex(CFSTR path, DWORD attrib, int &iconIndex)
{
#ifndef _UNICODE
if (!g_IsNT)
{
SHFILEINFO shellInfo;
DWORD_PTR res = ::SHGetFileInfo(fs2fas(path), FILE_ATTRIBUTE_NORMAL | attrib, &shellInfo,
sizeof(shellInfo), SHGFI_USEFILEATTRIBUTES | SHGFI_SYSICONINDEX);
iconIndex = shellInfo.iIcon;
return res;
}
else
#endif
{
SHFILEINFOW shellInfo;
DWORD_PTR res = ::MySHGetFileInfoW(fs2us(path), FILE_ATTRIBUTE_NORMAL | attrib, &shellInfo,
sizeof(shellInfo), SHGFI_USEFILEATTRIBUTES | SHGFI_SYSICONINDEX);
iconIndex = shellInfo.iIcon;
return res;
}
}
DWORD_PTR GetRealIconIndex(const UString &fileName, DWORD attrib, int &iconIndex, UString &typeName)
{
#ifndef _UNICODE
if (!g_IsNT)
{
SHFILEINFO shellInfo;
shellInfo.szTypeName[0] = 0;
DWORD_PTR res = ::SHGetFileInfoA(GetSystemString(fileName), FILE_ATTRIBUTE_NORMAL | attrib, &shellInfo,
sizeof(shellInfo), SHGFI_USEFILEATTRIBUTES | SHGFI_SYSICONINDEX | SHGFI_TYPENAME);
typeName = GetUnicodeString(shellInfo.szTypeName);
iconIndex = shellInfo.iIcon;
return res;
}
else
#endif
{
SHFILEINFOW shellInfo;
shellInfo.szTypeName[0] = 0;
DWORD_PTR res = ::MySHGetFileInfoW(fileName, FILE_ATTRIBUTE_NORMAL | attrib, &shellInfo,
sizeof(shellInfo), SHGFI_USEFILEATTRIBUTES | SHGFI_SYSICONINDEX | SHGFI_TYPENAME);
typeName = shellInfo.szTypeName;
iconIndex = shellInfo.iIcon;
return res;
}
}
int CExtToIconMap::GetIconIndex(DWORD attrib, const UString &fileName, UString &typeName)
{
int dotPos = fileName.ReverseFind(L'.');
if ((attrib & FILE_ATTRIBUTE_DIRECTORY) != 0 || dotPos < 0)
{
CAttribIconPair pair;
pair.Attrib = attrib;
int index = _attribMap.FindInSorted(pair);
if (index >= 0)
{
typeName = _attribMap[index].TypeName;
return _attribMap[index].IconIndex;
}
GetRealIconIndex(
#ifdef UNDER_CE
L"\\"
#endif
L"__File__"
, attrib, pair.IconIndex, pair.TypeName);
_attribMap.AddToSorted(pair);
typeName = pair.TypeName;
return pair.IconIndex;
}
CExtIconPair pair;
pair.Ext = fileName.Mid(dotPos + 1);
int index = _extMap.FindInSorted(pair);
if (index >= 0)
{
typeName = _extMap[index].TypeName;
return _extMap[index].IconIndex;
}
GetRealIconIndex(fileName.Mid(dotPos), attrib, pair.IconIndex, pair.TypeName);
_extMap.AddToSorted(pair);
typeName = pair.TypeName;
return pair.IconIndex;
}
int CExtToIconMap::GetIconIndex(DWORD attrib, const UString &fileName)
{
UString typeName;
return GetIconIndex(attrib, fileName, typeName);
}
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