// $Revision: 1.14 $
// Copyright (C) 1994 Taligent, Inc. All rights reserved.

#ifndef Taligent_CANVASPOLYGON
#define Taligent_CANVASPOLYGON

#ifndef Taligent_GRAFEDIT
#include <Taligent/GrafEdit.h>
#endif
#ifndef Taligent_CANVASINTERACTION
#include <Taligent/CanvasInteraction.h>
#endif
#ifndef Taligent_MOUSECURSORTOOLS
#include <Taligent/MouseCursorTools.h>
#endif
#ifndef Taligent_PRIMITIVECLASSES
#include <Taligent/PrimitiveClasses.h>
#endif


// Classes defined in this file:

class TCanvasPolygon;
class TCanvasPolygonCreationTool;
class TCanvasPolygonCreationInteractor;


// ********************************************************************************
// class			TCanvasPolygon
//
// description		Basic GrafEdit polygon graphic.
//
// ********************************************************************************

class TCanvasPolygon : public MCanvasGraphic
{
	public:
	
		TCanvasPolygon (const TGPolygon&);
		TCanvasPolygon (const TCanvasPolygon&);
		
		virtual							~TCanvasPolygon();
		
		//========================================
		// MCollectible overrides
		//========================================
		
		MCollectibleDeclarationsMacro (TCanvasPolygon);
		DynamicCastDeclarationsMacro ();

		// NOTE:						MCanvasGraphic subclasses need not implement IsEqual 
		//								or Hash since MCanvasGraphic provides implementations based
		//								based on TCanvasGraphicIDs.

		TCanvasPolygon&					operator= (const TCanvasPolygon&);
		virtual TStream&				operator>>= (TStream&) const;
		virtual TStream&				operator<<= (TStream&);

		//========================================
		// TGraphicComponent overrides
		//========================================

		virtual void 					HandleDraw (TGrafPort&) const;
		virtual TGRect 					HandleGetBounds () const;
		virtual bool					HandleHit (const TGPoint&) const;
		
		//========================================
		// TPolygonComponent methods
		//========================================
		
		bool							GetParametric (const TGPoint&, GCoordinate& u) const;
		void							DragPolygonTo (GCoordinate u, const TGPoint&);

	protected:
	
		// Default constructor for MCollectible cloning and subclasses
		TCanvasPolygon ();
	
#ifndef NO_Internal	
	private:
		void*							fExtension;
		TDeleterFor<TGPolygon>			fPolygon;
		TGRect							fBounds;
			
		enum Version { kOriginalVersion };
#endif

};


// ********************************************************************************
// class 			TCanvasPolygonCreationTool
//
// description		Tool that creates canvas polygons.
//
// ********************************************************************************

class TCanvasPolygonCreationTool : public TSimpleMouseTool
{
	public:
	
		TCanvasPolygonCreationTool ();
		TCanvasPolygonCreationTool (const TCanvasPolygonCreationTool&);
		
		virtual							~TCanvasPolygonCreationTool ();
		
		//========================================
		// MCollectible overrides
		//========================================
		
		MCollectibleDeclarationsMacro (TCanvasPolygonCreationTool);

		// NOTE:						TTool subclasses need not implement IsEqual or
		//								Hash since TTool provides implementations based
		//								on global IDs.

		TCanvasPolygonCreationTool&		operator= (const TCanvasPolygonCreationTool&);
		virtual TStream&				operator>>= (TStream&) const;
		virtual TStream&				operator<<= (TStream&);
		
		//========================================
		// TTool overrides
		//========================================
		
		virtual void					GetPaletteText (TText&) const;
		virtual MGraphic* 				CreatePaletteGraphic () const;
		virtual MGraphic* 				CreateCursorGraphic () const;
		
		//========================================
		// TSimpleMouseTool overrides
		//========================================	
			
		virtual TToolInteractor*		CreateInteractor (MToolTarget* target) const;
		
#ifndef NO_Internal	
	private:
		void*							fExtension;
		
		enum Version { kOriginalVersion };
#endif

};


// ********************************************************************************
// class			TCanvasPolygonCreationInteractor
//
// description		An interactor that creates canvas polygons from multiple 
//					click points, terminated with a double-click.
//
// ********************************************************************************

class TCanvasPolygonCreationInteractor : 	public TCanvasPolylineMulticlickInteractor
{
	public:
	
		TCanvasPolygonCreationInteractor (MCanvasSelection* adoptTarget, MToolHandler*);
		
		virtual 						~TCanvasPolygonCreationInteractor ();
		
		//========================================
		// Metadata
		//========================================

		VersionDeclarationsMacro (TCanvasPolygonCreationInteractor);
		    	    	    	
		//========================================
		// TCanvasInteractor Overrides
		//========================================

		virtual void					EndInteraction ();

#ifndef NO_Internal
	private:
		void*							fExtension;
		TDeleterFor<MCanvasSelection>	fTarget;
#endif

};


#endif // Taligent_CANVASPOLYGON