/**
* Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description:
*
*/

/**
 * @file
*/

#ifndef __SURFACE_UTILITY__
#define __SURFACE_UTILITY__

#include <e32base.h>
#include <graphics/surface.h>
#include <graphics/surfacemanager.h>
#include <graphics/surfaceupdateclient.h>

#define ENABLE_TEST_LOGGING
#define ALPHA_FIX_24BIT	0x7f //This forces a non-zero value into the X byte of 16MU color values

#if defined(ENABLE_TEST_LOGGING)
#define LOG(X)	RDebug::Printf X
#else
#define LOG(X)
#endif

class TRgb;
class CFbsBitmap;

class CSurfaceUtility : public CBase
	{
public:
	static CSurfaceUtility* NewL(CSurfaceUtility* aClone=NULL);
	virtual ~CSurfaceUtility();
	TSize SurfaceSize(const TSurfaceId& aSurface);
	void CreateSurfaceFromFileL(const TDesC& aFileName, TSurfaceId& aSurface);
	TSurfaceId CreateSurfaceL(const TSize& aSize, TUidPixelFormat aPixelFormat, TInt aStride, TInt aBuffers = 1);
	void FillSurfaceL(TSurfaceId& aSurface, const TRgb& aColor);
	void FillChunkL(TSurfaceId& aSurface, RChunk& aChunk, const TRgb& aColor, TInt aBufferNumber);
	void FillRectangleL(TSurfaceId& aSurface, TPoint& aStartPos, TSize& aSize, const TRgb& aColor);
	void FillRectangleNoUpdateL(TSurfaceId& aSurface, TPoint& aStartPos, TSize& aSize, const TRgb& aColor);
	void GridFillSurfaceL(TSurfaceId& aSurface, const TRgb& aColor, const TRgb& aLines);
	void PatternFillSurfaceL(TSurfaceId& aSurface);
	void FanFillSurfaceL(TSurfaceId& aSurface, const TRgb& aColor, const TRgb& aLinesTL,const TRgb& aLinesBR);
	void LineFillSurfaceL(TSurfaceId& aSurface, const TRgb& aBackColor, const TRgb& aLineColor, TInt aPosition);
	CFbsBitmap* EquivalentBitmapL(TSurfaceId& aSurface, CFbsBitmap* aCopyTo=NULL);
	void DestroySurface(TSurfaceId& aSurface);
	TBool DestroyAll();
	void SubmitUpdate(TInt aScreenNumber, const TSurfaceId& aSurface, const TRegion* aRegion, TInt aBufferNumber = 0);
	void MapAndSubmitUpdateL(RChunk& aChunk, TInt aScreenNumber, const TSurfaceId& aSurface, const TRegion* aRegion);
	void MapSurfaceL(const TSurfaceId& aSurface, RChunk& aChunk);
	void CopyBitmapFromFileToSurfaceL(const TDesC& aFileName, const TSurfaceId& aSurface);
	void ScaleBitmapFromFileToSurfaceL(const TDesC& aFileName, const TSurfaceId& aSurface);
	void CopyBitmapSurfaceL(const CFbsBitmap* aBitmap, TSurfaceId& aSurface);
	void CopyBitmapToSurfaceL(TSurfaceId& aSurface, const CFbsBitmap& aBitmap);
	TInt PixelDataOffet(const TSurfaceId& aSurface);
	TInt BytesPerPixelL(TUidPixelFormat aPixelFormat);
private:
	CSurfaceUtility(CSurfaceUtility* aClone);
	void ConstructL();

private:
	RSurfaceManager iManager;
	RSurfaceUpdateSession iSurfaceUpdateSession;
	//This local object wraps the array operations in a heap switch
	//The reason for providing this wrapper is to allow threads to share the surface manager surface ID list.
	//In particular, the next test can attempt to release the previous test's surfaces if it paniced. 
	//Note that the presumption is that the owning thread will be paused, 
	//so there will be no thread interlock issues with it's heap manager.
	class RHeapSurfaceArray
		{
		public:
		typedef RArray<TSurfaceId>	Array;
		RHeapSurfaceArray(RHeapSurfaceArray* aUseExternalArray=NULL);

		//Emulation of RArray entrypoints. Add more stub methods if required...
		TSurfaceId& operator[](TUint aIndex);
		void Close();
		TInt Count() const;
		inline void Reset();
		void AppendL(const TSurfaceId &anEntry);
		TInt Find(const TSurfaceId &anEntry) const;
		void Remove(TInt anIndex);
		
		private:
		static void PopHeap(void* mainheap);
		static void SwitchHeapLC(RHeap* aNewHeap);
		
		Array iLocalArray;
		Array* iUseArray;
		RHeap &iExternalHeapRef;
		}	iSurfaces;
	};

/**
CActiveListener provides the asynchronous operation
of an active object
*/
class CActiveListener : public CActive
	{
public:
	static CActiveListener* NewLC();
	~CActiveListener();	

	void Initialize();
	TBool IsRequestCancelled();
	
private:
	CActiveListener();

	virtual void RunL();
	virtual void DoCancel();
	};
	
#endif // __SURFACE_UTILITY__