CViewInterface.h

//========================================================================================
// 
// $File$
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// Owner: Mat Marcus
// 
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// Copyright 1997-2010 Adobe Systems Incorporated. All rights reserved.
// 
// NOTICE: Adobe permits you to use, modify, and distribute this file in accordance 
// with the terms of the Adobe license agreement accompanying it. If you have received
// this file from a source other than Adobe, then your use, modification, or 
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//========================================================================================

#ifndef __CViewInterface__
#define __CViewInterface__


#include "CPMUnknown.h"
#include "IViewObjectChanges.h"
#include "MetaProgramming.h"

//========================================================================================
// CViewInterface
//========================================================================================

// 
template <class Interface>
class CViewInterface : public Interface
{
public:
 IPMUnknown *QueryInterface(PMIID interfaceID) const;
 void AddRef() const;
 void Release() const;

 void PreDirty(ImplementationID prop = kInvalidImpl, bool16 allowModification = kTrue);

 /*fViewIFaceConsistencyChecker is used only to produce compiler errors 
 if people by mistake to not use CREATE_VIEW_PMINTERFACE to go along with CViewInterface
 */
 void* fViewIFaceConsistencyChecker;
protected:
 explicit CViewInterface(IPMUnknown *boss); 
 HelperInterface fHelperInterface;
};


template <class Interface>
CViewInterface<Interface>::CViewInterface(IPMUnknown *boss) :
fHelperInterface(boss), fViewIFaceConsistencyChecker(nil)
{
}

template <class Interface>
void CViewInterface<Interface>::AddRef() const
{
 fHelperInterface.AddRef();
}
 
template <class Interface>
void CViewInterface<Interface>::Release() const
{
 fHelperInterface.Release();
}

template <class Interface>
IPMUnknown* CViewInterface<Interface>::QueryInterface(PMIID interfaceID) const
{
#ifdef DEBUG
 if (interfaceID == IID_IGETINTERFACEIMPL)
 return const_cast<CViewInterface<Interface> *>(this);
#endif

 return fHelperInterface.QueryInterface(interfaceID);
}

template <class Interface>
void CViewInterface<Interface>::PreDirty(ImplementationID prop, bool16 allowModification)
{
 InterfacePtr<IViewObjectChanges>viewObjectChanges (this, UseDefaultIID());
 if (viewObjectChanges)
 {
 InterfacePtr<IControllingUnknown>boss(this, IID_IUNKNOWN);
 viewObjectChanges->SetDirty(boss, this, prop, allowModification);
 }
}

#endif //__CViewInterface__