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graphicsdeviceinterface/bitgdi/inc/BITDEV.H
changeset 0 5d03bc08d59c 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graphicsdeviceinterface/bitgdi/inc/BITDEV.H	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,263 @@
+// 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
FCL/sf/os/graphics