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/*
Mod Organizer archive handling
Copyright (C) 2012 Sebastian Herbord, 2020 MO2 Team. All rights reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "propertyvariant.h"
#include "compat.h"
#ifdef _WIN32
#include <guiddef.h>
#endif
#include <stdexcept>
#include <stdint.h>
#include <string>
PropertyVariant::PropertyVariant()
{
PropVariantInit(this);
}
PropertyVariant::~PropertyVariant()
{
clear();
}
void PropertyVariant::clear()
{
PropVariantClear(this);
}
// Arguably the behviours for empty here are wrong.
template <>
PropertyVariant::operator bool() const
{
switch (vt) {
case VT_EMPTY:
return false;
case VT_BOOL:
return boolVal != VARIANT_FALSE;
default:
throw std::runtime_error("Property is not a bool");
}
}
template <>
PropertyVariant::operator uint64_t() const
{
switch (vt) {
case VT_EMPTY:
return 0;
case VT_UI1:
return bVal;
case VT_UI2:
return uiVal;
case VT_UI4:
return ulVal;
case VT_UI8:
return static_cast<uint64_t>(uhVal.QuadPart);
default:
throw std::runtime_error("Property is not an unsigned integer");
}
}
template <>
PropertyVariant::operator uint32_t() const
{
switch (vt) {
case VT_EMPTY:
return 0;
case VT_UI1:
return bVal;
case VT_UI2:
return uiVal;
case VT_UI4:
return ulVal;
default:
throw std::runtime_error("Property is not an unsigned integer");
}
}
template <>
PropertyVariant::operator std::wstring() const
{
switch (vt) {
case VT_EMPTY:
return L"";
case VT_BSTR:
return std::wstring(bstrVal, ::SysStringLen(bstrVal));
default:
throw std::runtime_error("Property is not a string");
}
}
// This is what he does, though it looks rather a strange use of the property
template <>
PropertyVariant::operator std::string() const
{
switch (vt) {
case VT_EMPTY:
return "";
case VT_BSTR:
// If he can do a memcpy, I can do a reinterpret case
return std::string(reinterpret_cast<char const*>(bstrVal),
::SysStringByteLen(bstrVal));
default:
throw std::runtime_error("Property is not a string");
}
}
// This is what he does, though it looks rather a strange use of the property
template <>
PropertyVariant::operator GUID() const
{
switch (vt) {
case VT_BSTR:
// He did a cast too!
return *reinterpret_cast<const GUID*>(bstrVal);
default:
throw std::runtime_error("Property is not a GUID (string)");
}
}
template <>
PropertyVariant::operator FILETIME() const
{
switch (vt) {
case VT_FILETIME:
return filetime;
default:
throw std::runtime_error("Property is not a file time");
}
}
// Assignments
template <>
PropertyVariant& PropertyVariant::operator=(std::wstring const& str)
{
clear();
vt = VT_BSTR;
bstrVal = ::SysAllocString(str.c_str());
if (bstrVal == NULL) {
throw std::bad_alloc();
}
return *this;
}
template <>
PropertyVariant& PropertyVariant::operator=(bool const& n)
{
clear();
vt = VT_BOOL;
boolVal = n ? VARIANT_TRUE : VARIANT_FALSE;
return *this;
}
template <>
PropertyVariant& PropertyVariant::operator=(FILETIME const& n)
{
clear();
vt = VT_FILETIME;
filetime = n;
return *this;
}
template <>
PropertyVariant& PropertyVariant::operator=(uint32_t const& n)
{
clear();
vt = VT_UI4;
ulVal = n;
return *this;
}
template <>
PropertyVariant& PropertyVariant::operator=(uint64_t const& n)
{
clear();
vt = VT_UI8;
uhVal.QuadPart = n;
return *this;
}
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