// $Revision: 1.2 $
// SelectionToolTarget.C
// Copyright (C) 1994, 1995 Taligent, Inc. All rights reserved.
#ifndef TaligentSamples_SELECTIONTOOLTARGET
#include "SelectionToolTarget.h"
#endif

#ifndef TaligentSamples_FEEDBACKER
#include "Feedbacker.h"
#endif

#ifndef TaligentSamples_SELECTIONMAPPING
#include "SelectionMapping.h"
#endif

//................................................................................

TaligentTypeExtensionMacro_Abstract(TSelectionToolTarget)

TSelectionToolTarget::TSelectionToolTarget(MFeedbacker* feedbacker,
	MSelectionMapping* mapping)
	: MToolTarget(), 
	fFeedbacker(feedbacker), 
	fMapping(mapping), 
	fFeedback(NIL), 
	fCoordMapping()
{
	Assertion(fFeedbacker != NIL && fMapping != NIL, "TSelectionToolTarget::TSelectionToolTarget");
	TGPoint offset1(TGPoint::kOrigin);
	TGPoint offset2(1, 1);
	const TGRect source(offset1, offset2);
	
	fFeedbacker->GetFeedbackView().GetView()->LocalToGlobal(offset1);
	fMapping->GetMappingView().GetView()->GlobalToLocal(offset1);
	fFeedbacker->GetFeedbackView().GetView()->LocalToGlobal(offset2);
	fMapping->GetMappingView().GetView()->GlobalToLocal(offset2);
	fCoordMapping = TGrafMatrix(source, TGRect(offset1, offset2));
}

TSelectionToolTarget::~TSelectionToolTarget()
{
	if (fFeedback != NIL) {
		delete fFeedbacker->OrphanFeedback(*fFeedback);
	}
}

TGArea
TSelectionToolTarget::GetSelectionDisplayArea() const
{
	TGArea result(fMapping->GetSelectionDisplayArea(*GetSelection()));
	TGrafMatrix dummy(fCoordMapping);
	dummy.Invert();
	result.TransformBy(dummy);
	return result;
}

void			
TSelectionToolTarget::AdoptFeedback(MGraphic* graphic)
{
	if (fFeedback != NIL) {
		delete fFeedbacker->ReplaceFeedback(*fFeedback, graphic);
	}
	else {
		fFeedbacker->AdoptFeedback(graphic);
	}
	fFeedback = graphic;
}

MGraphic*		
TSelectionToolTarget::OrphanFeedback()
{
	MGraphic* result = (fFeedback != NIL) ? fFeedbacker->OrphanFeedback(*fFeedback) : NIL;
	fFeedback = NIL;
	return result;
}

MGraphic*		
TSelectionToolTarget::ReplaceFeedback(MGraphic* newFeedback)
{
	MGraphic* result;
	if (fFeedback != NIL) {
		result = fFeedbacker->ReplaceFeedback(*fFeedback, newFeedback);
	}
	else {
		result = NIL;
		fFeedbacker->AdoptFeedback(newFeedback);
	}
	fFeedback = newFeedback;
	return result;
}

TViewHandle
TSelectionToolTarget::GetCoordinateView() const
{
	return fFeedbacker->GetFeedbackView();
}

MFeedbacker*
TSelectionToolTarget::GetFeedbacker() const
{
	return fFeedbacker;
}

MSelectionMapping*
TSelectionToolTarget::GetMapping() const
{
	return fMapping;
}

const TGrafMatrix*
TSelectionToolTarget::GetCoordMapping() const
{
	return &fCoordMapping;
}