// $Revision: 1.9 $
//------------------------------------------------------------------------------
//
// Copyright (C) 1994, 1995 Taligent, Inc. All rights reserved.
//
// Project:			StockBrowser
// File:			LabelDrawer.h
// Build/Version:	1.0.0
//
// Description:		TLabelDrawer derives from TGraphDrawer.  It draws
//					numbers along the axes at a particular interval.  This
//					class is abstract.
//
//					TXLabelDrawer draws labels along the x-axis. TYLabelDrawer
//					draws labels along the y-axis.
//
//------------------------------------------------------------------------------

#ifndef TaligentSamples_LABELDRAWER
#define TaligentSamples_LABELDRAWER

class TLabelDrawer;
class TXLabelDrawer;
class TYLabelDrawer;

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

#ifndef Taligent_TEXTDISPLAY
#include <Taligent/TextDisplay.h>
#endif

#ifndef Taligent_LINELAYOUTSTYLES
#include <Taligent/LineLayoutStyles.h>
#endif

#ifndef Taligent_FONTSTYLES
#include <Taligent/FontStyles.h>
#endif

//==============================================================================
// TLabelDrawer

class TLabelDrawer : public TGraphDrawer {
public:
	TaligentTypeExtensionDeclarationsMacro_Abstract(TLabelDrawer)

protected:
									TLabelDrawer();
									TLabelDrawer(GraphValue labelDistanceFromAxis,
										GraphValue labelInterval,
										GraphValue pointSize,
										const TFontFamilyStyle& font = TFontFamilyStyle::GetDefaultFontFamilyStyle(),
										const TTextColorStyle& labelColor = TTextColorStyle::GetBlack());
									TLabelDrawer(const TLabelDrawer& source);
	virtual							~TLabelDrawer();
	
	TLabelDrawer&					operator=(const TLabelDrawer& source);
	virtual	TStream&				operator>>=(TStream& toStream) const;
	virtual	TStream&				operator<<=(TStream& fromStream);
		
public:
	virtual	const TTextColorStyle&	GetLabelColor() const;
	virtual	const TFontFamilyStyle&
									GetLabelFont() const;
	virtual	GraphValue				GetLabelSize() const;
	virtual	GraphValue				GetLabelDistance() const;
	virtual	GraphValue				GetLabelInterval() const;
	virtual	void					SetLabelColor(const TTextColorStyle& color);
	virtual	void					SetLabelFont(const TFontFamilyStyle& font);
	virtual	void					SetLabelSize(GraphValue pointSize);
	virtual	void					SetLabelDistance(GraphValue distance);
	virtual	void					SetLabelInterval(GraphValue interval);
	
	virtual	void					DrawIntoGraph(TGrafPort& port) const;
	virtual	TGRect					GetBounds() const;
	
private:
	virtual void					PositionLabel(TTextDisplay& label, GraphValue value) const = 0;
	virtual	const TGraphRange&		GetRange() const = 0;

	enum 							{kOriginalVersion};
	
	TTextColorStyle*				fLabelColor;
	TFontFamilyStyle			fLabelFont;
	GraphValue						fLabelSize;
	GraphValue						fLabelDistance;
	GraphValue						fLabelInterval;
};

//==============================================================================
// TXLabelDrawer

class TXLabelDrawer : public TLabelDrawer {
public:
	TaligentTypeExtensionDeclarationsMacro(TXLabelDrawer)
	
public:
									TXLabelDrawer();
									TXLabelDrawer(GraphValue labelDistanceFromAxis,
										GraphValue labelInterval,
										GraphValue pointSize,
										const TFontFamilyStyle& font = TFontFamilyStyle::GetDefaultFontFamilyStyle());
									TXLabelDrawer(const TXLabelDrawer& source);
	virtual 						~TXLabelDrawer();
	
	TXLabelDrawer&					operator=(const TXLabelDrawer& source);
	virtual	TStream&				operator>>=(TStream& toStream) const;
	virtual	TStream&				operator<<=(TStream& fromStream);
	
private:
	virtual	void					PositionLabel(TTextDisplay& label, GraphValue value) const;
	virtual	const TGraphRange&		GetRange() const;

private:
	enum 							{kOriginalVersion};

};

//==============================================================================
// TYLabelDrawer

class TYLabelDrawer : public TLabelDrawer {
public:
	TaligentTypeExtensionDeclarationsMacro(TYLabelDrawer)
	
public:
									TYLabelDrawer();
									TYLabelDrawer(GraphValue labelDistanceFromAxis,
										GraphValue labelInterval,
										GraphValue pointSize,
										const TFontFamilyStyle& font = TFontFamilyStyle::GetDefaultFontFamilyStyle());
									TYLabelDrawer(const TYLabelDrawer& source);
	virtual 						~TYLabelDrawer();
	
	TYLabelDrawer&					operator=(const TYLabelDrawer& source);
	virtual	TStream&				operator>>=(TStream& toStream) const;
	virtual	TStream&				operator<<=(TStream& fromStream);
	
private:
	virtual	void					PositionLabel(TTextDisplay& label, GraphValue value) const;
	virtual	const TGraphRange&		GetRange() const;

private:
	enum 							{kOriginalVersion};

};

#endif