williamr@4: /*
williamr@4: * Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies).
williamr@4: * All rights reserved.
williamr@4: * This component and the accompanying materials are made available
williamr@4: * under the terms of "Eclipse Public License v1.0"
williamr@4: * which accompanies this distribution, and is available
williamr@4: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
williamr@4: *
williamr@4: * Initial Contributors:
williamr@4: * Nokia Corporation - initial contribution.
williamr@4: *
williamr@4: * Contributors:
williamr@4: *
williamr@4: * Description: 
williamr@4: *
williamr@4: */
williamr@4: 
williamr@2: 
williamr@2: #ifndef FNTSTORE_H__
williamr@2: #define FNTSTORE_H__
williamr@2: 
williamr@2: #include <e32std.h>
williamr@2: #include <f32file.h>
williamr@2: #include <gdi.h>
williamr@2: #include <openfont.h>
williamr@4: #include <linkedfonts.h>
williamr@4: 
williamr@4: 
williamr@4: /** Defines the maximum number of linked typefaces that may be placed in a linked typeface specification 
williamr@4: WARNING: Constant for internal use ONLY.  Compatibility is not guaranteed in future releases.
williamr@4: @publishedAll
williamr@4: @released
williamr@4:  */
williamr@4: const TInt KMaxLinkedTypefaces = 12;
williamr@4: /** Defines the maximum number of linked typeface groups that may be placed in a linked typeface specification
williamr@4: WARNING: Constant for internal use ONLY.  Compatibility is not guaranteed in future releases.
williamr@4: @publishedAll
williamr@4: @released
williamr@4:  */
williamr@4: const TInt KMaxLinkedTypefaceGroups = 12;
williamr@4: 
williamr@4: /** Defines the maximun number of threads that may tranverse the COpenFontSessionCacheList (read-only)
williamr@4:  @publishedAll
williamr@4:  @released
williamr@4:  */ 
williamr@4: const TInt KSessionCacheSemaphoreCount = 12;
williamr@4: 
williamr@4: /** Defines the name of the semaphore which is used to exclude threads that may tranverse 
williamr@4:  * the COpenFontSessionCacheList (read-only) with FBserv.
williamr@4:  @publishedAll
williamr@4:  @released
williamr@4:  */
williamr@4: _LIT(KSessionCacheSemaphoreName,"FBSSessionCacheSemaphore");
williamr@2: 
williamr@2: class CLinkedTypefaceSpecification;
williamr@4: class TLinkedTypefaceSpecificationArgs;
williamr@2: class CFbClient;
williamr@2: class CFontStoreFile;
williamr@2: class CFontBitmap;
williamr@2: class RReadStream;
williamr@2: class TTypefaceFontBitmap;
williamr@2: class TShapeHeader;
williamr@2: class TShapeMessageParameters;
williamr@2: class CTypefaceSupportInfo;
williamr@4: class COpenFontRasterizer;
williamr@4: class CLinkedTypefaceGroup;
williamr@4: IMPORT_C extern const TInt8 KLinkedFontDrive;
williamr@4: IMPORT_C extern const TUint32 KFontTable_GlyphOutline_CacheMaxMem;
williamr@2: 
williamr@2: /**
williamr@4: WARNING: Class for internal use ONLY.  Compatibility is not guaranteed in future releases.
williamr@4: @publishedAll
williamr@4: @released
williamr@4:  */
williamr@2: class TCharacterMetrics
williamr@2: 	{
williamr@4: public:
williamr@2: 	IMPORT_C TCharacterMetrics();
williamr@2: 
williamr@4: public:
williamr@2: 	TInt16 iAscentInPixels;
williamr@2: 	TInt16 iHeightInPixels;
williamr@2: 	TInt16 iLeftAdjustInPixels;
williamr@2: 	TInt16 iMoveInPixels;
williamr@2: 	TInt16 iRightAdjustInPixels;
williamr@2: 	};
williamr@2: 
williamr@2: /** 
williamr@2: An algorithmic style for how a font is drawn.
williamr@2: 
williamr@2: Holds attributes such as whether the font is bold or italic, and the width 
williamr@2: and height factors. This is used as an input parameter for the GetFontById() method
williamr@2: of some font management classes. See CWsScreenDevice::GetFontById() for more information.
williamr@2: @publishedAll
williamr@2: @released
williamr@2: @see CWsScreenDevice::GetFontById()
williamr@2: @see CFbsTypefaceStore::GetFontById()
williamr@2: @see CFbsDevice::GetFontById()
williamr@2: */
williamr@4: class TAlgStyle
williamr@2: 	{
williamr@2: public:
williamr@2: 	IMPORT_C TAlgStyle();
williamr@2: 	IMPORT_C void SetIsBold(TBool aIsBold);
williamr@2: 	IMPORT_C void SetIsItalic(TBool aIsItalic);
williamr@2: 	IMPORT_C void SetIsMono(TBool aIsMono);
williamr@2: 	IMPORT_C void SetWidthFactor(TInt aWidthFactor);
williamr@2: 	IMPORT_C void SetHeightFactor(TInt aHeightFactor);
williamr@2: 	IMPORT_C TBool IsBold() const;
williamr@2: 	IMPORT_C TBool IsItalic() const;
williamr@2: 	IMPORT_C TBool IsMono() const;
williamr@2: 	IMPORT_C TInt WidthFactor() const;
williamr@2: 	IMPORT_C TInt HeightFactor() const;
williamr@2: 	IMPORT_C TBool operator==(const TAlgStyle& aAlgStyle) const;
williamr@2: 	TBool operator!=(const TAlgStyle& aAlgStyle) const;
williamr@2: public:
williamr@2: 	/** Baseline offset in pixels. */
williamr@2: 	TInt iBaselineOffsetInPixels;
williamr@2: private:
williamr@2: 	enum
williamr@2: 		{
williamr@2: 		EBold=1,
williamr@2: 		EItalic=2,
williamr@2: 		EMono=4,
williamr@2: 		};
williamr@2: 	/** This member is private and not intended for use. */
williamr@2: 	TInt8 iFlags;
williamr@2: 	/** This member is private and not intended for use. */
williamr@2: 	TInt8 iWidthFactor;
williamr@2: 	/** This member is private and not intended for use. */
williamr@2: 	TInt8 iHeightFactor;
williamr@2: 	};
williamr@2: 
williamr@2: /** 
williamr@2: Bitmap font class.
williamr@2: An object of this class may either access and use a bitmap font (a CFontBitmap)
williamr@2: or an open font (a COpenFont).
williamr@2: Stored in a CFontStore.
williamr@2: @publishedAll
williamr@2: @released
williamr@2: */
williamr@2: class CBitmapFont : public CFont
williamr@2: 	{
williamr@4: 	friend class CFbsFont;
williamr@2: 	friend class CFontStore;
williamr@4: 	friend class CFbsBitGc;
williamr@2: public:
williamr@2: 	// New functions
williamr@2: 	TUid Uid() const;
williamr@2: 	IMPORT_C TCharacterMetrics CharacterMetrics(TInt aCode,const TUint8*& aBytes) const;
williamr@2: 	IMPORT_C TBool GetCharacterData(TInt aSessionHandle, TInt aCode, TOpenFontCharMetrics& aMetrics, const TUint8*& aBitmap) const;
williamr@2: 	IMPORT_C TBool Rasterize(TInt aSessionHandle,TInt aCode,TOpenFontGlyphData* aGlyphData) const;
williamr@2: 	IMPORT_C void GetFontMetrics(TOpenFontMetrics& aMetrics) const;
williamr@2: 	IMPORT_C TBool GetFaceAttrib(TOpenFontFaceAttrib& aAttrib) const;
williamr@2: 	IMPORT_C TInt BitmapEncoding() const;
williamr@2: 	IMPORT_C TBool HasCharacterL(TInt aCode) const;
williamr@2: 	IMPORT_C TBool CharacterNeedsToBeRasterized(TInt aSessionHandle,TInt aCode) const;
williamr@2: 	IMPORT_C TShapeHeader* ShapeTextL(const TDesC16& aText,
williamr@2: 		TInt aSessionHandle, const TShapeMessageParameters& aParams);
williamr@2: 	IMPORT_C void DeleteShape(TInt aSessionHandle,TShapeHeader* aHeader);
williamr@2: 	IMPORT_C void operator delete(TAny*);
williamr@2: 	inline TBool IsOpenFont() const;
williamr@2: 	inline COpenFont* OpenFont() const;
williamr@2: 	inline TGlyphBitmapType GlyphBitmapType() const;
williamr@4: 	IMPORT_C TUint32 UniqueFontId();
williamr@4: 	IMPORT_C TInt GetFontTable(TUint32 aTag, TAny*& aTableContent, 
williamr@4: 	        TInt& aLength, TInt aSessionHandle);
williamr@4:     IMPORT_C TInt GetGlyphOutline(TUint aCode,  
williamr@4:             TBool aHinted, TAny*& aOutline, TInt& aLength, TInt aSessionHandle);
williamr@4:     IMPORT_C void ReleaseGlyphOutlines(TInt aCount, const TUint* aCodes,  
williamr@4:             TBool aHinted, TInt aSessionHandle);
williamr@4:     IMPORT_C void ReleaseFontTable(TUint32 aTag, TInt aSessionHandle);
williamr@4:     
williamr@2: private:
williamr@2: 	// From CFont
williamr@2: 	IMPORT_C virtual TUid DoTypeUid() const;
williamr@2: 	IMPORT_C virtual TInt DoHeightInPixels() const;
williamr@2: 	IMPORT_C virtual TInt DoAscentInPixels() const;
williamr@2: 	IMPORT_C virtual TInt DoCharWidthInPixels(TChar aChar) const;
williamr@2: 	IMPORT_C virtual TInt DoTextWidthInPixels(const TDesC &aText) const;
williamr@2: 	IMPORT_C virtual TInt DoBaselineOffsetInPixels() const;
williamr@2: 	IMPORT_C virtual TInt DoTextCount(const TDesC &aText, TInt aWidthInPixels) const;
williamr@2: 	IMPORT_C virtual TInt DoTextCount(const TDesC &aText, TInt aWidthInPixels, TInt &aExcessWidthInPixels) const;
williamr@2: 	IMPORT_C virtual TInt DoMaxCharWidthInPixels() const;
williamr@2: 	IMPORT_C virtual TInt DoMaxNormalCharWidthInPixels() const;
williamr@2: 	IMPORT_C virtual TFontSpec DoFontSpecInTwips() const;
williamr@2: 	IMPORT_C virtual TInt DoExtendedFunction(TUid aFunctionId, TAny* aParam = NULL) const;
williamr@2: 
williamr@2: private:
williamr@2: 	CBitmapFont(RHeap* aHeap,const TFontSpec& aFontSpecInTwips, const TAlgStyle& aAlgStyle, CFontBitmap* aFontBitmap);
williamr@2: 	CBitmapFont(RHeap* aHeap,const TFontSpec& aFontSpecInTwips, const TAlgStyle& aAlgStyle, COpenFont* aOpenFont);
williamr@2: 	void ConstructL();
williamr@2: 	~CBitmapFont();
williamr@2: 	static CBitmapFont* NewL(RHeap* aHeap, const TFontSpec& aFontSpecInTwips, const TAlgStyle& aAlgStyle, CFontBitmap* aFontBitmap);
williamr@2: 	static CBitmapFont* NewL(RHeap* aHeap, const TFontSpec& aFontSpecInTwips, const TAlgStyle& aAlgStyle, COpenFont* aOpenFont);
williamr@2: 	inline void operator delete(TAny*, TAny*) {}
williamr@2: 	TInt Width(TInt aNum) const;
williamr@2: 	TInt Height(TInt aNum) const;
williamr@2: 	CFontBitmap* FontBitmap() const;
williamr@2: 	void InstallOpenFontShaper(COpenFont* aOpenFont, CShaper::TInput& aShaperInput);
williamr@4: 	TInt DoTextWidthInPixels(const TDesC &aText, const TMeasureTextInput* aParam) const;
williamr@4: 	void SetUniqueFontId(TUint32 aUniqueFontId);
williamr@2: 
williamr@2: private:
williamr@2: 	TFontSpec iFontSpecInTwips;
williamr@2: 
williamr@2: public:
williamr@2: 	/** The algorithmic font style. */
williamr@2: 	TAlgStyle iAlgStyle;	// must not move this member
williamr@2: 
williamr@2: private:
williamr@4:     // Binary Compatibility warning - data member iOpenFont is referenced by inline methods
williamr@4:     RHeap* iHeap;
williamr@4:     TInt iFontBitmapOffset;
williamr@4:     
williamr@4:     // In order to be able to work with the flexible memory model, iOpenFont is
williamr@4:     // actually an offset from the address of this class.
williamr@4:     // iOpenFont's type remains unchanged.
williamr@4:     // As Qt code that uses OpenFont() must be able to run on new and old versions
williamr@4:     // of Symbian OS, it must be able to determine whether iOpenFont is a pointer or
williamr@4:     // an offset at run-time.  Therefore an offset will have its lowest significant bit set to 1.
williamr@4:     // If iOpenFont is null, this object is not an open font.
williamr@4:     // Assumption: a pointer always has least significant bit value of zero.
williamr@4:     COpenFont* iOpenFont; // if iOpenFont is non-null this is an open font and many functions are forwarded to it
williamr@2: 
williamr@4:     TUint32 iReserved;
williamr@4:     TUint32 iUniqueFontId; // unique id for this instance of this font
williamr@4: 	};
williamr@4: 
williamr@4: /**
williamr@4: WARNING: Class for internal and partner use ONLY.  Compatibility is not guaranteed in future releases.
williamr@4: @publishedAll
williamr@4: @released
williamr@4:  */
williamr@4: class TLinkedTypefaceGroupArgs
williamr@4: 	{
williamr@4: public:
williamr@4: 	TInt iGroupId;
williamr@4: 	CLinkedTypefaceGroup::TScalingOption iScalingOption;
williamr@4: 	CLinkedTypefaceGroup::TBaselineShift iBaselineShift;
williamr@4: 	TInt iAntialiasingThreshold;
williamr@4: 	TInt iBoldnessPercentage;
williamr@4: 	TInt iItalicAngle;
williamr@4: public:
williamr@4: 	void operator =(const CLinkedTypefaceGroup* aRhs);
williamr@4: 	};
williamr@4: 
williamr@4: class COpenFontLinkedTypefaceElementSpec;
williamr@4: class COpenFontLinkedTypefaceSpecification;
williamr@4: 
williamr@4: /**
williamr@4: WARNING: Class for internal and partner use ONLY.  Compatibility is not guaranteed in future releases.
williamr@4: @publishedAll
williamr@4: @released
williamr@4:  */
williamr@4: class TLinkedTypefaceElementSpecArgs
williamr@4: 	{
williamr@4: public:
williamr@4: 	TBufC<KMaxTypefaceNameLength> iName;
williamr@4: 	TBool iIsCanonical;
williamr@4: 	TInt iGroupId;
williamr@4: 	
williamr@4: 	void operator = (const CLinkedTypefaceElementSpec* aRhs);
williamr@4: 	void operator = (const COpenFontLinkedTypefaceElementSpec* aRhs);
williamr@4: 	};
williamr@4: 
williamr@4: /**
williamr@4: WARNING: Class for internal and partner use ONLY.  Compatibility is not guaranteed in future releases.
williamr@4: @publishedAll
williamr@4: @released
williamr@4:  */
williamr@4: class TLinkedTypefaceSpecificationArgs
williamr@4: 	{
williamr@4: public:
williamr@4: 	TBufC<KMaxTypefaceNameLength> iName;
williamr@4: 	TLinkedTypefaceElementSpecArgs iTypefaces[KMaxLinkedTypefaces];
williamr@4: 	TLinkedTypefaceGroupArgs iGroups[KMaxLinkedTypefaceGroups];
williamr@4: 	TInt	iSize;
williamr@4: 	TInt	iGroupSize;
williamr@4: 	TInt	iCanonicalIndex;
williamr@4: 	
williamr@4: 	IMPORT_C void operator = (const CLinkedTypefaceSpecification& aRhs);
williamr@4: 	IMPORT_C void operator = (const COpenFontLinkedTypefaceSpecification& aRhs);
williamr@2: 	};
williamr@2: 	
williamr@4: 
williamr@4: 
williamr@4: class TUnhintedOutlineId;
williamr@4: class THintedOutlineId;
williamr@4: class CFontTableCache;
williamr@4: class CUnhintedOutlineCache;
williamr@4: class CHintedOutlineCache;
williamr@4: class TFontTableGlyphOutlineCacheMemMonitor;
williamr@4: 
williamr@2: class CFontStore : public CTypefaceStore
williamr@2: /** 
williamr@2: A store for fonts.
williamr@2: 
williamr@2: Stores and handles both open and fixed-size fonts. Open fonts are made from 
williamr@2: open (scalable) typefaces by Open Font plug-in rasterizers. Fonts of other 
williamr@2: typefaces are stored in a limited number of fixed sizes. However, which is 
williamr@2: being used is transparent to the user of this class. For example the GetNearestFont...() 
williamr@2: functions get a bitmap font which may be retrieved from memory or generated 
williamr@2: via a rasterizer.
williamr@2: @publishedAll
williamr@2: @released
williamr@2: */
williamr@2:     {
williamr@2: friend class CLinkedFonts;
williamr@2: friend class CLinkedTypefaceSpecification; 
williamr@2: 
williamr@2: public:
williamr@2: 	IMPORT_C static CFontStore* NewL(RHeap* aHeap);
williamr@2: 	IMPORT_C ~CFontStore();
williamr@2: 	IMPORT_C TUid AddFileL(const TDesC& aName);
williamr@2: 	IMPORT_C void RemoveFile(TUid aFileUid);
williamr@2: 	IMPORT_C TInt GetNearestFontInTwips(CFont *&aFont, const TFontSpec& aFontSpec);
williamr@2: 	IMPORT_C TInt GetNearestFontInPixels(CFont *&aFont, const TFontSpec &aFontSpec);
williamr@2: 	IMPORT_C TInt GetNearestFontToDesignHeightInTwips(CFont *&aFont, const TFontSpec& aFontSpec);
williamr@2: 	IMPORT_C TInt GetNearestFontToDesignHeightInPixels(CFont *&aFont, const TFontSpec& aFontSpec);
williamr@2: 	IMPORT_C TInt GetNearestFontToMaxHeightInTwips(CFont*& aFont, const TFontSpec& aFontSpec, TInt aMaxHeight);
williamr@2: 	IMPORT_C TInt GetNearestFontToMaxHeightInPixels(CFont*& aFont, const TFontSpec& aFontSpec, TInt aMaxHeight);
williamr@2: 	IMPORT_C TInt GetNearestFontInTwips(CFont *&aFont, const TOpenFontSpec& aFontSpec);
williamr@2: 	IMPORT_C TInt GetNearestFontInPixels(CFont *&aFont, const TOpenFontSpec &aFontSpec);
williamr@2: 	IMPORT_C TInt GetNearestFontToDesignHeightInTwips(CFont *&aFont, const TOpenFontSpec& aFontSpec);
williamr@2: 	IMPORT_C TInt GetNearestFontToDesignHeightInPixels(CFont *&aFont, const TOpenFontSpec& aFontSpec);
williamr@2: 	IMPORT_C TInt GetNearestFontToMaxHeightInTwips(CFont*& aFont, const TOpenFontSpec& aFontSpec, TInt aMaxHeight);
williamr@2: 	IMPORT_C TInt GetNearestFontToMaxHeightInPixels(CFont*& aFont, const TOpenFontSpec& aFontSpec, TInt aMaxHeight);
williamr@2: 	IMPORT_C TInt GetFontById(CFont *&aFont,TUid aUid,const TAlgStyle& aAlgStyle);
williamr@2: 	IMPORT_C TInt NumTypefaces() const;
williamr@2: 	IMPORT_C void TypefaceSupport(TTypefaceSupport &aTypefaceSupport,TInt aTypefaceIndex) const;
williamr@2: 	IMPORT_C TInt FontHeightInTwips(TInt aTypefaceIndex,TInt aHeightIndex) const;
williamr@2: 	IMPORT_C TInt FontHeightInPixels(TInt aTypefaceIndex,TInt aHeightIndex) const;
williamr@2: 	IMPORT_C void InstallRasterizerL(COpenFontRasterizer* aRasterizer);
williamr@2: 	IMPORT_C void DeleteSessionCache(TInt aSessionHandle);
williamr@2: 	inline TGlyphBitmapType DefaultBitmapType() const;
williamr@2: 	inline void SetDefaultBitmapType(TGlyphBitmapType aType);
williamr@2: 	IMPORT_C void InstallShaperFactoryL(CShaperFactory* aShaperFactory);
williamr@2: 	const CArrayPtrFlat<CShaperFactory>* ShaperFactoryList() const;
williamr@2: 	COpenFontSessionCacheList* GetSessionCacheList();
williamr@2: 	TInt GetShaperCacheMemUsage();
williamr@2: 	void SetShaperCacheMemUsage(TInt aUsage);
williamr@2: 	CArrayPtrFlat<COpenFontFile>* GetOpenFontFileList();
williamr@2: 	void IncNumShaperCaches();
williamr@2: 	void DecNumShaperCaches();
williamr@2: 	TInt GetNumShaperCaches();
williamr@4: 	IMPORT_C TInt CreateLinkedTypeface(const TLinkedTypefaceSpecificationArgs &aLinkedTypefaceSpec, TInt aSession, TInt& aId);
williamr@4: 	IMPORT_C void GetLinkedTypefaceL(TLinkedTypefaceSpecificationArgs &aLinkedTypefaceSpec);
williamr@2: 	IMPORT_C TBool HaveTypefaceFamilyName(const TDesC& aName);
williamr@4: 	IMPORT_C void UpdateLinkedTypefaceL(const TLinkedTypefaceSpecificationArgs& aLinkedTypefaceSpec);
williamr@4: 	IMPORT_C void LoadFontsAtStartupL();
williamr@4: 	IMPORT_C TBool GetFontFilePath(const TDesC& aFontName, TFileName& aFilePath) const;
williamr@4:     IMPORT_C void CleanupCacheOnFbsSessionTermination(TInt aSessionHandle);
williamr@4: 	
williamr@4: 	TInt CacheFontTable(TUid aFileUid, TUint32 aTag, TAny*& aContent, TInt aLength);
williamr@4: 	TInt ReleaseFontTable(TUid aFileUid, TUint32 aTag, TInt aSessionHandle);
williamr@4: 	TInt FindFontTableInCache(TUid aFileUid, TUint32 aTag, TAny*& aContent, TInt& aLength);
williamr@4: 	TInt IncFontTableRefCount(TUid aFileUid, TUint32 aTag, TInt aSessionHandle);
williamr@4: 	TInt DecFontTableRefCount(TUid aFileUid, TUint32 aTag, TInt aSessionHandle);
williamr@4: 	TInt CacheUnhintedOutline(const TUnhintedOutlineId& aOutlineId, TAny* aData, 
williamr@4: 	        TInt aLength, TAny*& aOutline, TInt& aLen);
williamr@4: 	TInt CacheHintedOutline(const THintedOutlineId& aOutlineId, TAny* aData, TInt aLength,
williamr@4: 	        TAny*& aOutline, TInt& aLen);
williamr@4: 	TInt ReleaseUnhintedOutline(const TUnhintedOutlineId& aOutlineId, TInt aSessionHandle);
williamr@4: 	TInt ReleaseHintedOutline(const THintedOutlineId& aOutlineId, TInt aSessionHandle);
williamr@4: 	TInt IncreaseUnhintedOutlineRefCount(const TUnhintedOutlineId& aOutlineId, TInt aSessionHandle);
williamr@4: 	TInt IncreaseHintedOutlineRefCount(const THintedOutlineId& aOutlineId, TInt aSessionHandle);
williamr@4: 	TInt FindUnhintedOutlineInCache(const TUnhintedOutlineId& aOutlineId, TAny*& aData, 
williamr@4: 	        TInt &aLength);
williamr@4: 	TInt FindHintedOutlineInCache(const THintedOutlineId& aOutlineId, TAny*& aData, TInt& aLength);
williamr@4:     void CleanupCacheOnOpenFontRemoval(COpenFont* aFont);
williamr@4:     void CleanupCacheOnOpenFontFileRemoval(COpenFontFile* aFontFile);
williamr@4: 
williamr@2: private:
williamr@2: 	CFontStore(RHeap* aHeap);
williamr@2: 	void ConstructL();
williamr@2: 	void InternalizeFontStoreFileL(CFontStoreFile* aFontStoreFile, TInt aFontVersion);
williamr@2: 	TTypeface* GetNearestTypeface(const TTypeface& aTypeface) const;
williamr@2: 	TTypefaceFontBitmap GetNearestTypefaceFontBitmap(const TFontSpec& aFontSpecInPixels, TInt aMaxHeight);
williamr@2: 	CFontBitmap* GetFontBitmapById(TUid aUid);
williamr@2: 	TBool IsFontLoaded(CFont*& aFont, const TAlgStyle& aAlgStyle, const TFontSpec& aFontSpecInPixels, TUid aUid, TInt aMaxHeight = 0) const;
williamr@2: 	TBool IsFontLoaded(CFont*& aFont, const TAlgStyle& aAlgStyle, const TOpenFontSpec& aFontSpecInPixels, TInt aMaxHeight) const;
williamr@2: 	CBitmapFont* NewFontL(const TFontSpec& aFontSpecInTwips,const TAlgStyle& aAlgStyle,CFontBitmap* aFontBitmap);
williamr@2: 	CBitmapFont* NewFontL(const TOpenFontSpec& aFontSpecInTwips,const TAlgStyle& aAlgStyle,COpenFont* aOpenFont);
williamr@2: 	TInt VerticalPixelsToTwips(TInt aPixelHeight) const;
williamr@2: 	TInt VerticalTwipsToPixels(TInt aTwipsHeight) const;
williamr@2: 	void GetNearestBitmapFontInPixelsL(CFont*& aFont, TFontSpec& aFontSpec, TInt aMaxHeight);
williamr@2: 	void GetNearestOpenFontInPixelsL(
williamr@2: 	CFont*& aFont, TOpenFontSpec& aActualFontSpec, const TOpenFontSpec& aDesiredFontSpec, TInt aMaxHeight);
williamr@2: 	TInt GetNearestRealFontInPixels(CFont*& aFont, const TOpenFontSpec& aFontSpec, TInt aMaxHeight);
williamr@2: 	TInt GetNearestFontInPixelsL(CFont*& aFont, const TOpenFontSpec& aFontSpec, TInt aMaxHeight);
williamr@4: 	TInt CreateLinkedTypefaceL(const TLinkedTypefaceSpecificationArgs &aLinkedTypefaceSpec, TInt aSession, TInt& aId);
williamr@2: 	TInt GetCanonicalIndex(TInt aTypefaceIndex) const;
williamr@2: 	void TypefaceSupportLinked(TTypefaceSupport &aTypefaceSupport, TInt aTypefaceIndex) const;
williamr@2: 	TInt GetNearestFontInPixels(CFont*& aFont, const TOpenFontSpec& aFontSpec, TInt aMaxHeight);
williamr@2: 	void SanityCheckForTtfL(RFile& aFile, TUint aFontFileSize, TBool aStrictChecking);
williamr@2: 	void SanityCheckFontFileL(TParse& aParse);
williamr@2: 	TInt GetNearestOpenFontInPixelsByFontName(COpenFont*& aNearestOpenFont, TOpenFontSpec& aActualFontSpec, const TOpenFontSpec& aDesiredFontSpec, TInt aMaxHeight);
williamr@2: 	TInt GetNearestOpenFontInPixelsBySimilarity(COpenFont*& aNearestOpenFont, TOpenFontSpec& aActualFontSpec, const TOpenFontSpec& aDesiredFontSpec, TInt aMaxHeight);
williamr@2: 	TInt AddTypefacesToSupportList(COpenFontFile* aOpenFontFile);
williamr@2: 	void RemoveTypefacesFromSupportList(COpenFontFile* aOpenFontFile);
williamr@2: 	TInt FindBitmapFontFileIndexByUid(TUid aUid);
williamr@4: 	TBool IncRefCountOfLoadedFont(const TParse& aFileName, TUid& aFontUid);
williamr@4: 	TBool LoadFileAsOpenFontL(const TParse& aFileName, TUid& aFontUid);
williamr@4: 	TUid LoadFileAsBitmapFontL(const TParse& aParse);
williamr@2: 	static void CleanupRemoveFontFile(TAny* aCleanupInfo);
williamr@4: 	const TAny* FontLinkingInterface() const;
williamr@4: 	TInt ValidateLinkedFontSpecificationL(COpenFontLinkedTypefaceSpecification& aSpec, TBool aOverwrite) const;
williamr@4: 	void GenerateLinkedFontFileL(COpenFontLinkedTypefaceSpecification& aSpec, const TAny* aExtension, TBool aUpdate);
williamr@4: 	void LoadFontsL(const TDesC& aFontsDir);
williamr@4: 	void AddSanityCheckedFontL(const TParse& aFileName, TUid& aUid);
williamr@2: public:
williamr@2: 	/** The width of 1000 pixels in twips.
williamr@2: 	
williamr@2: 	This is set in the constructor. If the appropriate HALData attributes are 
williamr@2: 	set (EDisplayXPixels and EDisplayXTwips) then the value is calculated using 
williamr@2: 	these; otherwise the value is set to 11860. */
williamr@2: 	TInt iKPixelWidthInTwips;
williamr@2: 	
williamr@2: 	/** The height of 1000 pixels in twips.
williamr@2: 	
williamr@2: 	This is set in the constructor. If the appropriate HALData attributes are 
williamr@2: 	set (EDisplayYPixels and EDisplayYTwips) then the value is calculated using 
williamr@2: 	these; otherwise the value is set to 11860. */
williamr@2: 	TInt iKPixelHeightInTwips;
williamr@2: 
williamr@2: private:
williamr@2: 	// Binary Compatibility warning - data member iDefaultBitmapType is referenced by inline methods
williamr@2: 	RFs iFs;
williamr@2: 	RHeap* iHeap;
williamr@2: 	CArrayPtrFlat<CFontStoreFile> iFontStoreFileList;
williamr@2: 	CArrayPtrFlat<TTypeface> iTypefaceList;
williamr@2: 	CArrayPtrFlat<CFontBitmap> iFontBitmapList;
williamr@2: 	CArrayFixFlat<TTypefaceFontBitmap> iTypefaceFontBitmapList;
williamr@2: 	CArrayPtrFlat<COpenFontFile> iOpenFontFileList;
williamr@4: 	TInt iReserved[2];		// keep iDefaultBitmapType at the correct offset
williamr@4:     CFontTableCache *iFontTableCache;
williamr@4:     CUnhintedOutlineCache *iUnhintedOutlineCache;
williamr@4:     CHintedOutlineCache *iHintedOutlineCache;
williamr@4:     TFontTableGlyphOutlineCacheMemMonitor *iCacheMemMon;
williamr@2: 	CArrayPtrFlat<COpenFontRasterizer> iOpenFontRasterizerList;
williamr@2: 	COpenFontSessionCacheList* iOpenFontSessionCacheList;
williamr@2: 	TInt iOpenFontUid;
williamr@2: 	TGlyphBitmapType iDefaultBitmapType;
williamr@2: 	CArrayPtrFlat<CShaperFactory> iShaperFactoryList;
williamr@2: 	TInt iOpenFontShaperCacheMemUsage;
williamr@2: 	TInt iNumberOfShaperCaches;
williamr@2: 	RPointerArray<CTypefaceSupportInfo> iOpenFontTypefaceSupportList;
williamr@4: 	RArray<RHandleBase> *iHandleArray;
williamr@4: 	TAny* iUnused2;
williamr@4: 	TUint32 iUniqueFontIdCount;
williamr@2: 	};
williamr@2: 
williamr@2: // inline functions start here
williamr@2: 
williamr@2: /** Returns whether the bitmap font object is an open font (a COpenFont) rather 
williamr@2: than a bitmap font (a CFontBitmap).
williamr@2: 
williamr@2: @return ETrue if the bitmap font object is using an open font (a COpenFont);
williamr@2: EFalse if it is using a bitmap font (a CFontBitmap).
williamr@2: @see OpenFont()
williamr@2: */
williamr@2: inline TBool CBitmapFont::IsOpenFont() const
williamr@2: 	{
williamr@2: 	return iOpenFont != NULL;
williamr@2: 	}
williamr@2: 
williamr@4: 
williamr@2: /** Returns a pointer to the open font being used by the bitmap font object.
williamr@2: 
williamr@2: @return A pointer to an open font.
williamr@2: @see IsOpenFont()
williamr@2: */
williamr@2: inline COpenFont* CBitmapFont::OpenFont() const
williamr@2: 	{ 
williamr@4:     if (reinterpret_cast<TInt>(iOpenFont) & 1)
williamr@4:         {
williamr@4:         return reinterpret_cast<COpenFont*>(const_cast<CBitmapFont*>(PtrAdd(this, reinterpret_cast<TInt>(iOpenFont) & ~1)));
williamr@4:         }
williamr@4:     else
williamr@4:         {
williamr@4:         return iOpenFont;
williamr@4:         }
williamr@2: 	}
williamr@2: 
williamr@2: /** Gets the anti-aliasing setting for the font, see TGlyphBitmapType for 
williamr@2: the range of values.
williamr@2: 
williamr@2: This is only applicable to open fonts (COpenFonts) not bitmap fonts (CBitmapFonts).
williamr@2: 
williamr@2: Note that this setting is stored in the device-independent font specification 
williamr@2: which is set when the bitmap font object is constructed.
williamr@2: 
williamr@2: @return The anti-aliasing setting for the font.
williamr@2: @see IsOpenFont()
williamr@2: @see TGlyphBitmapType
williamr@2: @see COpenFont
williamr@2: @see CBitmapFont
williamr@2: */
williamr@2: inline TGlyphBitmapType CBitmapFont::GlyphBitmapType() const
williamr@2: 	{
williamr@2: 	return iFontSpecInTwips.iFontStyle.BitmapType();
williamr@2: 	}
williamr@2: 
williamr@2: /** Returns a default bitmap type.
williamr@2: 
williamr@2: @return A default bitmap type.
williamr@2: @see TGlyphBitmapType
williamr@2: */
williamr@2: inline TGlyphBitmapType CFontStore::DefaultBitmapType() const
williamr@2: 	{
williamr@2: 	return iDefaultBitmapType;
williamr@2: 	}
williamr@2: 
williamr@2: /** Sets a default bitmap type.
williamr@2: 
williamr@2: @param aType A default bitmap type.
williamr@2: @see TGlyphBitmapType
williamr@2: */
williamr@2: inline void CFontStore::SetDefaultBitmapType(TGlyphBitmapType aType)
williamr@2: 	{
williamr@2: 	iDefaultBitmapType = aType;
williamr@2: 	}
williamr@2: 
williamr@2: #endif
williamr@4: