PropIDUtils.cpp
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// PropIDUtils.cpp
#include "StdAfx.h"
#include "PropIDUtils.h"
#include "Common/IntToString.h"
#include "Common/StringConvert.h"
#include "Windows/FileFind.h"
#include "Windows/PropVariantConversions.h"
#include "../../PropID.h"
using namespace NWindows;
static UString ConvertUInt32ToString(UInt32 value)
{
wchar_t buffer[32];
ConvertUInt64ToString(value, buffer);
return buffer;
}
static void ConvertUInt32ToHex(UInt32 value, wchar_t *s)
{
for (int i = 0; i < 8; i++)
{
int t = value & 0xF;
value >>= 4;
s[7 - i] = (wchar_t)((t < 10) ? (L'0' + t) : (L'A' + (t - 10)));
}
s[8] = L'\0';
}
UString ConvertPropertyToString(const PROPVARIANT &propVariant, PROPID propID, bool full)
{
switch(propID)
{
case kpidCreationTime:
case kpidLastWriteTime:
case kpidLastAccessTime:
{
if (propVariant.vt != VT_FILETIME)
return UString(); // It is error;
FILETIME localFileTime;
if (propVariant.filetime.dwHighDateTime == 0 &&
propVariant.filetime.dwLowDateTime == 0)
return UString();
if (!::FileTimeToLocalFileTime(&propVariant.filetime, &localFileTime))
return UString(); // It is error;
return ConvertFileTimeToString(localFileTime, true, full);
}
case kpidCRC:
{
if(propVariant.vt != VT_UI4)
break;
wchar_t temp[12];
ConvertUInt32ToHex(propVariant.ulVal, temp);
return temp;
}
case kpidAttributes:
{
if(propVariant.vt != VT_UI4)
break;
UString result;
UInt32 attributes = propVariant.ulVal;
if (NFile::NFind::NAttributes::IsReadOnly(attributes)) result += L'R';
if (NFile::NFind::NAttributes::IsHidden(attributes)) result += L'H';
if (NFile::NFind::NAttributes::IsSystem(attributes)) result += L'S';
if (NFile::NFind::NAttributes::IsDirectory(attributes)) result += L'D';
if (NFile::NFind::NAttributes::IsArchived(attributes)) result += L'A';
if (NFile::NFind::NAttributes::IsCompressed(attributes)) result += L'C';
if (NFile::NFind::NAttributes::IsEncrypted(attributes)) result += L'E';
return result;
}
case kpidDictionarySize:
{
if(propVariant.vt != VT_UI4)
break;
UInt32 size = propVariant.ulVal;
if (size % (1 << 20) == 0)
return ConvertUInt32ToString(size >> 20) + L"MB";
if (size % (1 << 10) == 0)
return ConvertUInt32ToString(size >> 10) + L"KB";
return ConvertUInt32ToString(size);
}
}
return ConvertPropVariantToString(propVariant);
}