// Copyright (c) 1997-2009 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:

//

#ifndef __BITDEV_H__

#define __BITDEV_H__

#include <fbs.h>

#include <bitbase.h>

#include <bitstd.h>

#include <graphicsaccelerator.h>

class CFbsDrawDevice;

class TSurfaceId;

/** Screen device orientations.

WARNING: Enumeration for internal use ONLY.  Compatibility is not guaranteed in future releases.

@publishedAll

@released

 */

enum TDeviceOrientation

	{

	EDeviceOrientationNormal = 1,

	EDeviceOrientation90CW = 2,

	EDeviceOrientation180 = 4,

	EDeviceOrientation270CW = 8

	};

/** Abstract base class for graphics devices to which bitmaps and fonts can be 

drawn.

The class implements the pure virtual CBitmapDevice functions and additionally 

provides:

support for creating and enquiring about fonts

comparing two device rectangles

creating a graphics context for the device.

CFbsBitmapDevice and CFbsScreenDevice are derived fom this class.

@see CFbsBitmapDevice

@see CFbsScreenDevice 

@publishedAll

@released

*/

class CFbsDevice : public CBitmapDevice

	{

	friend class CFbsBitGc;

public:

	IMPORT_C ~CFbsDevice();

	IMPORT_C TInt CreateContext(CFbsBitGc*& aGc);

	inline TInt CreateContext(CGraphicsContext*& aGc);

	IMPORT_C TDisplayMode DisplayMode() const;

	IMPORT_C TSize SizeInPixels() const;

	IMPORT_C TBool RectCompare(const TRect& aSourceRect,const CFbsDevice& aDevice,const TRect& aDeviceRect) const;

	IMPORT_C TInt AddFile(const TDesC& aName,TInt& aId);

	IMPORT_C void RemoveFile(TInt aId=0);

	IMPORT_C virtual TInt GetNearestFontInTwips(CFont*& aFont, const TFontSpec& aFontSpec);

	IMPORT_C virtual TInt GetNearestFontInPixels(CFont*& aFont, const TFontSpec& aFontSpec);

	IMPORT_C virtual TInt GetNearestFontToDesignHeightInTwips(CFont*& aFont, const TFontSpec& aFontSpec);

	IMPORT_C virtual TInt GetNearestFontToDesignHeightInPixels(CFont*& aFont, const TFontSpec& aFontSpec);

	IMPORT_C virtual TInt GetNearestFontToMaxHeightInTwips(CFont*& aFont, const TFontSpec& aFontSpec, TInt aMaxHeight); 

	IMPORT_C virtual TInt GetNearestFontToMaxHeightInPixels(CFont*& aFont, const TFontSpec& aFontSpec, TInt aMaxHeight);

	IMPORT_C TInt GetFontById(CFont*& aFont,TUid aFileId,const TAlgStyle& aStyle);

	inline TInt GetNearestFontInTwips(CFbsFont*& aFont, const TFontSpec& aFontSpec);

	inline TInt GetNearestFontInPixels(CFbsFont*& aFont, const TFontSpec& aFontSpec);

	inline TInt GetNearestFontToDesignHeightInTwips(CFbsFont*& aFont, const TFontSpec& aFontSpec);

	inline TInt GetNearestFontToDesignHeightInPixels(CFbsFont*& aFont, const TFontSpec& aFontSpec);

	inline TInt GetNearestFontToMaxHeightInTwips(CFbsFont*& aFont, const TFontSpec& aFontSpec, TInt aMaxHeight);

	inline TInt GetNearestFontToMaxHeightInPixels(CFbsFont*& aFont, const TFontSpec& aFontSpec, TInt aMaxHeight);

	inline TInt GetFontById(CFbsFont*& aFont,TUid aFileId,const TAlgStyle& aStyle);

	IMPORT_C void ReleaseFont(CFont* aFont);

	IMPORT_C TInt FontHeightInTwips(TInt aTypefaceIndex,TInt aHeightIndex) const;

	IMPORT_C TInt FontHeightInPixels(TInt aTypefaceIndex,TInt aHeightIndex) const;

	IMPORT_C TInt NumTypefaces() const;

	IMPORT_C void TypefaceSupport(TTypefaceSupport& aTypefaceSupport,TInt aTypefaceIndex) const;

	IMPORT_C TInt SetCustomPalette(const CPalette* aPalette);

	inline CGraphicsAccelerator* GraphicsAccelerator() const;

	inline CFbsBitGc::TGraphicsOrientation Orientation() const;

	IMPORT_C static TDisplayMode DisplayMode16M();

	IMPORT_C TInt SetScalingFactor(const TPoint& aOrigin,

								   TInt aFactorX, TInt aFactorY,

								   TInt aDivisorX, TInt aDivisorY);

	IMPORT_C void GetDrawRect(TRect& aRect) const;

	IMPORT_C TInt RegisterLinkedTypeface(const CLinkedTypefaceSpecification& aLinkedTypefaceSpec, TInt& aId);

	IMPORT_C TInt SetDrawDeviceOffset(const TPoint& aOrigin);

protected:

	CFbsDevice();

	virtual void DrawingBegin(TBool /*aAlways*/ = EFalse) {}

	virtual void DrawingEnd(TBool /*aAlways*/ = EFalse) {}

	/**

	Sets the bit level.

	*/

	virtual void SetBits() {}

	/**

	This method has been deprecated.  Sprites are no longer supported in BitGDI.

	Calling this method has no effect.

	@deprecated

	*/

	virtual void CancelSprite() const {}

	/**

	This method has been deprecated.  Sprites are no longer supported in BitGDI.

	Calling this method has no effect.

	@return TSpriteBase* NULL.

	@deprecated

	*/

	virtual TSpriteBase* HideSprite() const {return(NULL);}

	/**

	This method has been deprecated.  Sprites are no longer supported in BitGDI.

	Calling this method has no effect.

	@param aRect Ignored.

	@param aClippingRegion Ignored. 

  	@return TSpriteBase* NULL.

  	@deprecated

	*/

	virtual TSpriteBase* HideSprite(const TRect&,const TRegion*) const {return(NULL);}

	/**

	This method has been deprecated.  Sprites are no longer supported in BitGDI.

	Calling this method has no effect.

	@param aSprite Ignored.

	@deprecated

	*/

	virtual void ShowSprite(TSpriteBase*) const {}

	/**

	This method has been deprecated.  Sprites are no longer supported in BitGDI.

	Calling this method has no effect.

	@param aSprite Ignored. 

 	@param aRect Ignored. 

 	@param aClippingRegion Ignored.

 	@deprecated

 	*/

	virtual void ShowSprite(TSpriteBase*,const TRect&,const TRegion*) const {}

	TInt GetNearestFbsFont(CFbsFont*& aFont,const TFontSpec& aFontSpec);

	void DoGetScanLine(TDes8& aBuf,const TPoint& aPixel,TInt aLength,TDisplayMode aDispMode);

	void ReadLineDiffMode(TInt,TInt,TInt,TAny*,TDisplayMode) const;

	void TruncateRect(TRect& aRect);

	TBool SetOrientation(CFbsBitGc::TGraphicsOrientation aOrientation);

	void DrawingBegin(const CFbsBitmap* aBitmap, TBool aAlways = EFalse);

	void DrawingEnd(const CFbsBitmap* aBitmap, TBool aAlways = EFalse);

protected:

	CFbsDrawDevice* iDrawDevice;

	RFbsSession* iFbs;

	CFbsTypefaceStore* iTypefaceStore;

	TInt iSpare;

	TBool iScreenDevice;

	TUint8* iBitBltMaskedBuffer;

	CGraphicsAccelerator* iGraphicsAccelerator;

	CFbsBitGc::TGraphicsOrientation iOrientation;

	};

/** A graphics device interface that provides direct access to the screen, without 

the mediation of the window server.

@publishedAll

@released

*/

class CFbsScreenDevice : public CFbsDevice

	{

public:

	IMPORT_C static CFbsScreenDevice* NewL(const TDesC& aLibname,TDisplayMode aDispMode);

	IMPORT_C static CFbsScreenDevice* NewL(const TDesC& aLibname,TDisplayMode aDispMode, TRgb aWhite);

	IMPORT_C static CFbsScreenDevice* NewL(TInt aScreenNo, TDisplayMode aDispMode);

	IMPORT_C virtual ~CFbsScreenDevice();

	IMPORT_C void GetScanLine(TDes8& aBuf,const TPoint& aStartPixel,TInt aLength,TDisplayMode aDispMode) const;

	IMPORT_C void GetPixel(TRgb& aColor,const TPoint& aPixel) const;

	IMPORT_C TInt HorizontalPixelsToTwips(TInt aPixels) const;

	IMPORT_C TInt VerticalPixelsToTwips(TInt aPixels) const;

	IMPORT_C TInt HorizontalTwipsToPixels(TInt aTwips) const;

	IMPORT_C TInt VerticalTwipsToPixels(TInt aTwips) const;

	IMPORT_C void SetAutoUpdate(TBool aValue);

	IMPORT_C void DrawSpriteBegin();		//< @deprecated

	IMPORT_C void DrawSpriteEnd();		//< @deprecated

	IMPORT_C void CancelSprite() const;		//< @deprecated

	IMPORT_C TSpriteBase* HideSprite() const;		//< @deprecated

	IMPORT_C TSpriteBase* HideSprite(const TRect& aRect,const TRegion* aClippingRegion) const;		//< @deprecated

	IMPORT_C void ShowSprite(TSpriteBase* aSprite) const;		//< @deprecated

	IMPORT_C void ShowSprite(TSpriteBase* aSprite,const TRect& aRect,const TRegion* aClippingRegion) const;		//< @deprecated

	IMPORT_C void ChangeScreenDevice(CFbsScreenDevice* aOldDevice);

	IMPORT_C void PaletteAttributes(TBool& aModifiable,TInt& aNumEntries) const;

	IMPORT_C void SetPalette(CPalette* aPalette);

	IMPORT_C TInt GetPalette(CPalette*& aPalette) const;

	IMPORT_C void Update();

	IMPORT_C void Update(const TRegion& aRegion);

	IMPORT_C TSize SizeInTwips() const;

	IMPORT_C RHardwareBitmap HardwareBitmap();

	IMPORT_C const TUint32* Bits() const;

	IMPORT_C TInt Stride() const;

	IMPORT_C TInt ScreenNo() const;

	IMPORT_C TUint DeviceOrientationsAvailable() const;	/**< WARNING: Function for internal use ONLY. Compatibility is not guaranteed in future releases. */

	IMPORT_C TBool SetDeviceOrientation(TDeviceOrientation aOrientation) const;	/**< WARNING: Function for internal use ONLY. Compatibility is not guaranteed in future releases. */

	IMPORT_C void GetSurface(TSurfaceId& aSurface) const; /**< WARNING: Function for internal use ONLY. Compatibility is not guaranteed in future releases. */

	IMPORT_C TDeviceOrientation DeviceOrientation() const; /**< WARNING: Function for internal use ONLY. Compatibility is not guaranteed in future releases. */

private:

	CFbsScreenDevice(TInt aScreenNo);

	void ConstructL(TInt aScreenNo, TDisplayMode aDispMode);

private:

	TInt iSpare1_CFbsScreenDevice;

	TInt iSpare2_CFbsScreenDevice;

    TInt iScreenNo;

	};

/** A graphics device to which a bitmap managed by the font and bitmap server can 

be drawn.

The class specialises the bitmap graphics device interface CBitmapDevice for 

drawing to in-memory bitmaps. 

@publishedAll

@released

*/

class CFbsBitmapDevice : public CFbsDevice

	{

public:

	IMPORT_C static CFbsBitmapDevice* NewL(CFbsBitmap* aFbsBitmap);

	IMPORT_C static CFbsBitmapDevice* NewL(CFbsBitmap* aFbsBitmap,const TDesC& aLibname);

	IMPORT_C virtual ~CFbsBitmapDevice();

	IMPORT_C TInt Resize(const TSize& aSize);

	IMPORT_C virtual void GetScanLine(TDes8& aBuf,const TPoint& aStartPixel,TInt aLength,TDisplayMode iDispMode) const;

	IMPORT_C virtual void GetPixel(TRgb& aColor,const TPoint& aPixel) const;

	IMPORT_C virtual TInt HorizontalPixelsToTwips(TInt aPixels) const;

	IMPORT_C virtual TInt VerticalPixelsToTwips(TInt aPixels) const;

	IMPORT_C virtual TInt HorizontalTwipsToPixels(TInt aTwips) const;

	IMPORT_C virtual TInt VerticalTwipsToPixels(TInt aTwips) const;

	IMPORT_C virtual TSize SizeInTwips() const;

	IMPORT_C virtual void PaletteAttributes(TBool& aModifiable,TInt& aNumEntries) const;

	IMPORT_C virtual void SetPalette(CPalette* aPalette);

	IMPORT_C virtual TInt GetPalette(CPalette*& aPalette) const;

	IMPORT_C virtual void DrawingBegin(TBool aAlways = EFalse);

	IMPORT_C virtual void DrawingEnd(TBool aAlways = EFalse);

	IMPORT_C TInt SwapWidthAndHeight();

private:

	CFbsBitmapDevice();

	virtual void SetBits();

	void ConstructL(CFbsBitmap* aFbsBitmap);

	void ConstructL(CFbsBitmap* aFbsBitmap,const TDesC& aLibname);

private:

	CFbsBitGcBitmap* iFbsBmp;

	};

#include <bitdev.inl>

#endif