windows-nt/Source/XPSP1/NT/multimedia/dshow/vidctl/msvidctl/rgsbag.h

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2020-09-26 03:20:57 -05:00
/////////////////////////////////////////////////////////////////////////////////////
// RGSBag.h : Declaration of the CRGSBag
// Copyright (c) Microsoft Corporation 2000.
//
// small internal class to provide readonly IPropertyBag access to a string containing
// an atl .rgs fragment
#ifndef __RGSBAG_H_
#define __RGSBAG_H_
#pragma once
#include <objectwithsiteimplsec.h>
#include <propertybag2impl.h>
namespace BDATuningModel {
using ::ATL::ATL::CRegObject;
using ::ATL::ATL::CRegParser;
/////////////////////////////////////////////////////////////////////////////
// CRGSBag
class ATL_NO_VTABLE DECLSPEC_UUID("7B3CAA7B-5E78-4797-95F7-BDA2FCD807A2") CRGSBagBase :
public CComObjectRootEx<CComMultiThreadModel>,
public CComCoClass<CRGSBagBase, &__uuidof(CRGSBagBase)>,
public IObjectWithSiteImplSec<CRGSBagBase>,
public IPropertyBag2Impl<CRGSBagBase>,
public IPropertyBag
{
public:
CRGSBagBase() {}
virtual ~CRGSBagBase() {
m_mapBag.clear();
}
DECLARE_NOT_AGGREGATABLE(CRGSBagBase)
DECLARE_PROTECT_FINAL_CONSTRUCT()
BEGIN_COM_MAP(CRGSBagBase)
COM_INTERFACE_ENTRY(IPropertyBag2)
COM_INTERFACE_ENTRY(IPropertyBag)
COM_INTERFACE_ENTRY(IObjectWithSite)
END_COM_MAP_WITH_FTM()
// IPropertyBag2
public:
// IPropertyBag
STDMETHOD(Read)(LPCOLESTR pszPropName, VARIANT *pVar, IErrorLog *pErrorLog) {
if (!pVar) {
return E_POINTER;
}
try {
CString csKey(pszPropName);
ATL_LOCK();
RGSBag_t::iterator i = m_mapBag.find(csKey);
if (i == m_mapBag.end()) {
return HRESULT_FROM_WIN32(ERROR_UNKNOWN_PROPERTY);
}
return (*i).second.CopyTo(pVar);
} CATCHALL();
}
STDMETHOD(Write)(LPCOLESTR pszPropName, VARIANT *pVar) {
return E_NOTIMPL;
}
// IPropertyBag2
STDMETHOD(CountProperties)(ULONG * pcProperties) {
if (!pcProperties) {
return E_POINTER;
}
try {
ATL_LOCK();
*pcProperties = m_mapBag.size();
return NOERROR;
} CATCHALL();
}
STDMETHOD(GetPropertyInfo)(ULONG iProperty, ULONG cProperties, PROPBAG2 * pPropBag, ULONG * pcProperties) {
return E_NOTIMPL;
}
STDMETHOD(LoadObject)(LPCOLESTR pstrName, ULONG dwHint, IUnknown * pUnkObject, IErrorLog * pErrLog) {
return E_NOTIMPL;
}
protected:
typedef std::map<CString, CComVariant> RGSBag_t; // id->object mapping, id's not contiguous
RGSBag_t m_mapBag;
};
class CRGSBag : public CComObject<CRGSBagBase>,
public CRegParser
{
public:
CRGSBag(LPCTSTR szRGS, CRegObject& croi, int& cchEaten); // parse string into map
HRESULT BuildMapFromFragment(LPTSTR pszToken);
HRESULT GetObject(CComVariant& val);
HRESULT GetValue(CComVariant &val);
};
template<class BAGTYPE, class PERSISTTYPE> HRESULT LoadPersistedObject(PUnknown& pobj, CRegObject& cro, TCHAR** ppchCur) {
HRESULT hr = NOERROR;
try {
PERSISTTYPE pPersistObj(pobj);
if (!pPersistObj) {
return E_NOINTERFACE;
}
hr = pPersistObj->InitNew();
if (FAILED(hr) && hr != E_NOTIMPL) {
return hr;
}
int cchEaten = 0;
BAGTYPE pBag(new CRGSBag(*ppchCur, cro, cchEaten));
if (!pBag) {
return E_OUTOFMEMORY;
}
*ppchCur += cchEaten;
hr = pPersistObj->Load(pBag, NULL);
if (FAILED(hr)) {
delete pBag;
return hr;
}
return hr;
} CATCHALL();
};
}; // namespace
#endif //__RGSBAG_H_