// $Revision: 1.6 $
// ViewerPresenterState.C
// Copyright (C) 1994, 1995 Taligent, Inc. All rights reserved.

#ifndef TaligentSamples_VIEWERPRESENTERSTATE
#include "ViewerPresenterState.h"
#endif

#ifndef TaligentSamples_VIEWERPRESENTER
#include "ViewerPresenter.h"
#endif

#ifndef TaligentSamples_STOCKGRAPHCONSTRUCTOR
#include "StockGraphConstructor.h"
#endif

TaligentTypeExtensionMacro(TViewerPresenterState);

TViewerPresenterState*
TViewerPresenterState::LookupForWriting(const TPresenterStateReference& presenterState)
{
	TViewerPresenterState* viewerPresenterState;
	::DynamicCastTo(viewerPresenterState,
		TGUIPresenterState::LookupForWriting(presenterState));
	return viewerPresenterState;
}

const TViewerPresenterState*
TViewerPresenterState::LookupForReading(const TPresenterStateReference& presenterState)
{
	const TViewerPresenterState* viewerPresenterState;
	::DynamicCastTo(viewerPresenterState,
		TGUIPresenterState::LookupForReading(presenterState));
	return viewerPresenterState;
}

TViewerPresenterState::TViewerPresenterState()
	: TGUIPresenterState(),
	fGraphConstructor(NIL)
{
}

TViewerPresenterState::TViewerPresenterState(const TViewerPresenterState& source)
	: TGUIPresenterState(source),
	fGraphConstructor(NIL)
{
	fGraphConstructor = ::CopyPointer(source.fGraphConstructor);
}

TViewerPresenterState::TViewerPresenterState(const TModelReference& model)
	: TGUIPresenterState(model),
	fGraphConstructor(NIL)
{
}

TViewerPresenterState::~TViewerPresenterState()
{
}

TViewerPresenterState&
TViewerPresenterState::operator=(const TViewerPresenterState& source)
{
	if (&source != this) {
		TGUIPresenterState::operator=(source);
		fGraphConstructor = ::CopyPointer(source.fGraphConstructor);
	}
	return *this;
}

TStream&
TViewerPresenterState::operator>>=(TStream& toStream) const
{
	::WriteVersion(toStream, kOriginalVersion);
	TGUIPresenterState::operator>>=(toStream);
	::Flatten(fGraphConstructor, toStream);
	return toStream;
}

TStream&
TViewerPresenterState::operator<<=(TStream& fromStream)
{
	::ReadVersion(fromStream, kOriginalVersion, kOriginalVersion);
	TGUIPresenterState::operator<<=(fromStream);
	TStockGraphConstructor* graphConstructor = NIL;
	::Resurrect(graphConstructor, fromStream);
	AdoptGraphConstructor(graphConstructor);
	return fromStream;
}

void
TViewerPresenterState::AdoptGraphConstructor(TStockGraphConstructor* constructor)
{
	delete fGraphConstructor;
	fGraphConstructor = constructor;
}

TStockGraphConstructor*
TViewerPresenterState::OrphanGraphConstructor()
{
	TStockGraphConstructor* orphan = fGraphConstructor;
	fGraphConstructor = NIL;
	return orphan;
}

TStockGraphConstructor*
TViewerPresenterState::GetGraphConstructor()
{
	return fGraphConstructor;
}

TModelPresenterStateInterest
TViewerPresenterState::GetNewGraphConstructorInterest() const
{
	return TModelPresenterStateInterest(*this, "TViewerPresenterState::kNewGraphConstructor");
}

TGUIPresenter*
TViewerPresenterState::HandleCreatePresenter(const TGUIBundle& guiBundle) const
{
	return new TViewerPresenter(guiBundle);
}