// $Revision: 1.12 $
//------------------------------------------------------------------------------
//
// Copyright (C) 1994, 1995 Taligent, Inc. All rights reserved.
//
// Project:			StockBrowser
// File:			BarDrawer.h
// Build/Version:	1.0.0
//
// Description:		TBarDrawer draws vertical bars on a TStandardGraph.
//
//------------------------------------------------------------------------------

#ifndef TaligentSamples_BARDRAWER
#define TaligentSamples_BARDRAWER

class TBarDrawer;

#ifndef TaligentSamples_GRAPHDRAWER
#include "GraphDrawer.h"
#endif

#ifndef TaligentSamples_GRAPHRANGE
#include "GraphRange.h"		// for GraphValue
#endif

#ifndef Taligent_GRAPHICS
#include <Taligent/Graphics.h>
#endif

class TRawArray<GraphValue>;

//==============================================================================
// TBarDrawer

class TBarDrawer : public TGraphDrawer {
public:
	TaligentTypeExtensionDeclarationsMacro(TBarDrawer)
	
public:
									TBarDrawer(
										GraphValue xAxisLocation,
										GraphValue barWidth,
										GraphValue barInterval,
										TRawArray<GraphValue>* valuesForAdoption);
									TBarDrawer(const TBarDrawer& source);
	virtual							 ~TBarDrawer();
	
	TBarDrawer&						operator=(const TBarDrawer& source);
	virtual	TStream&				operator>>=(TStream& toStream) const;
	virtual	TStream&				operator<<=(TStream& fromStream);

	virtual	void					AdoptValues(TRawArray<GraphValue>* valuesForAdoption);
	virtual	TRawArray<GraphValue>*	OrphanValues();

	virtual	GraphValue				GetBarWidth() const;
	virtual	GraphValue				GetBarInterval() const;
	virtual	GraphValue				GetXAxisLocation() const;

	virtual	void					SetBarWidth(const GraphValue& width);
	virtual	void					SetBarInterval(const GraphValue& interval);
	virtual void					SetXAxisLocation(GraphValue xAxisLocation);

	virtual	void					SetBarColor(const TRGBColor& color);

	//...................................................................
	// TGraphDrawer overrides

	virtual	void					DrawIntoGraph(TGrafPort& port) const;
	virtual	TGRect					GetBounds() const;

protected:
									TBarDrawer();
	virtual	void					SetBar(GraphValue xValue,
										GraphValue yValue,
										TArea& bar) const;
private:
	enum 							{kOriginalVersion};
	
	GraphValue						fBarWidth;
	GraphValue						fBarInterval;
	TRawArray<GraphValue>*			fValues;
	TArea							fBar;
	GraphValue						fXAxisLocation;
};

#endif