//===========================================================================//
// File:	GUIObject.hpp                                                    //
// Project: Adept                                  //
//---------------------------------------------------------------------------//
//   Date    Who  Modification                                               //
// --------  ---  ---------------------------------------------------------- //
// 04/21/99  DPB  Initial coding.                                            //
//---------------------------------------------------------------------------//
// Copyright (C) 1998-1999, Virtual World Entertainment, Inc.                //
//                      PROPRIETARY AND CONFIDENTIAL                         //
//===========================================================================//

#pragma once

#include "Adept.hpp"
#include "Receiver.hpp"
#include <ElementRenderer\ScreenQuadsElement.hpp>

namespace Adept 
{
	class GUIObject;

	//##########################################################################
	//###########################    QuadIndexObject   #########################
	//##########################################################################
	class QuadIndexObject:
		public Plug
	{
	public:
		QuadIndexObject(int index):
		  Plug(Plug::DefaultData)
		  {
			  quadIndex = index;
		  }
		~QuadIndexObject()
		{}

		int
			quadIndex;
	};
	//##########################################################################
	//###########################    ScreenQuadObject   ########################
	//##########################################################################
	class ScreenQuadObject:
		public Plug
	{

	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	// Construction, Destruction
	//
	public:
		ScreenQuadObject(int size); 
		~ScreenQuadObject();
	
	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	// Class Data
	//
	public:
		Stuff::SlotOf<ElementRenderer::ScreenQuadsElement*> 
			quadElement;

		Stuff::MemoryStackOf<QuadIndexObject> 
			availableQuadStack;

	};

	//##########################################################################
	//###########################    GUIObject   ###############################
	//##########################################################################
	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	// The following helper classes must always be typedef'd or overriden by an
	// inheritor
	//
	typedef Receiver__ClassData					GUIObject__ClassData;
	typedef Receiver__Message					GUIObject__Message;

	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

	class GUIObject:
		public Receiver
	{
	
	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	// Inheritance Support
	//
	public:
		typedef GUIObject__ClassData			ClassData;
		typedef GUIObject__Message				Message;

	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	// Construction, Destruction, Testing
	//
	public:
		static void
			InitializeClass();
		static void
			TerminateClass();

		GUIObject(
			ClassData *class_data,
			Stuff::Page *page
		);

		GUIObject(
			ClassData *class_data,
			Stuff::MemoryStream *stream
		);

		GUIObject(ClassData *class_data);

		virtual void
			Save(Stuff::MemoryStream *stream);

		~GUIObject();

		void
      		TestInstance();
	
	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	// Class Data support
	//
	public:
		static ClassData 
			*DefaultData;

	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	// Simulation Functions
	//
	public:
		void
			HideImage();
		void
			ShowImage();
		virtual void
			Draw() {};

	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	// Data Accesors
	//
	public:
		ElementRenderer::StateChange
			*GetQuadState()
				{Check_Object(this); return quadState;}

		const Stuff::Vector4D
			*GetPolyCorners()
				{Check_Object(this); return polyCorners;}

		Stuff::RGBAColor
			*GetPolyColors()
				{Check_Object(this); return polyColors;}

		Stuff::Vector2DOf<Stuff::Scalar>
			*GetPolyUVs()
				{Check_Object(this); return polyUVs;}

	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	// Private Data 
	//
	public:
		MString
			guiObjectName;

	private:
		ElementRenderer::StateChange
			*quadState;

		Stuff::Vector4D
			*polyCorners;

		Stuff::RGBAColor
			*polyColors;

		Stuff::Vector2DOf<Stuff::Scalar>
			*polyUVs;

		bool
			*polyStatus;

	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	// Static Object Management
	//
	public:
		static void
			AdoptCamera(ElementRenderer::CameraElement *camera);

		static void
			RemoveCamera();

		static ChainOf<ScreenQuadObject *> 
			*ScreenQuadGroups;
		static ElementRenderer::CameraElement 
			*Camera;

	};
}