diff -r 000000000000 -r 5d03bc08d59c fbs/fontandbitmapserver/sfbs/TFSTORE.CPP
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/fbs/fontandbitmapserver/sfbs/TFSTORE.CPP	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,885 @@
+// Copyright (c) 1995-2009 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:
+//
+
+#include <e32hal.h>
+#include <fbs.h>
+#include "UTILS.H"
+#include <linkedfonts.h>
+#include "fbsmessage.h"
+
+GLREF_C void Panic(TFbsPanic aPanic);
+
+CFbsTypefaceStore::CFbsTypefaceStore(CGraphicsDevice* aDevice):
+	CTypefaceStore(),
+	iDevice(aDevice),
+	iTwipsCache(NULL)
+	{
+	}
+
+/** 
+@publishedAll 
+@released
+*/
+EXPORT_C CFbsTypefaceStore::~CFbsTypefaceStore()
+	{
+	if(iTwipsCache)
+		{
+		ReleaseTwipsCache();
+		delete iTwipsCache;
+		}
+	}
+
+/** Allocates and constructs a CFbsTypefaceStore, specifying a graphics device.
+@param aDevice A pointer to a graphics device.
+@return A pointer to the newly created typeface store. 
+@publishedAll 
+@released
+*/
+EXPORT_C CFbsTypefaceStore* CFbsTypefaceStore::NewL(CGraphicsDevice* aDevice)
+	{
+	CFbsTypefaceStore* thisptr=new(ELeave) CFbsTypefaceStore(aDevice);
+	CleanupStack::PushL(thisptr);
+	thisptr->ConstructL();
+	CleanupStack::Pop();
+	return(thisptr);
+	}
+
+
+void CFbsTypefaceStore::ConstructL()
+	{
+	// get the session info from the Tls
+	iFbs = RFbsSession::GetSession();
+	if (!iFbs)
+		{
+		User::Leave(KErrCouldNotConnect);
+		}
+	CTypefaceStore::ConstructL();
+	iTwipsCache = new(ELeave) CFontCache;
+	}
+
+
+/** Installs a font store file into the typeface store.
+All the fonts in added and installed font files are available to the
+GetNearestFont...() family of functions.
+Additionally Bitmap Fonts are also available to GetFontById().
+
+Installed files remain in the typeface store even after the client which added 
+them is destroyed. They can be removed using RemoveFile().
+@param aName The name of the file to be installed.
+@param aId On return, contains the id of the installed file.
+@return KErrNone if successful, otherwise another of the system-wide error 
+codes.
+@see AddFile()
+@see RemoveFile()
+@see GetFontById()
+@see GetNearestFontToDesignHeightInTwips()
+@see GetNearestFontToDesignHeightInPixels()
+@see GetNearestFontToMaxHeightInTwips()
+@see GetNearestFontToMaxHeightInPixels()
+@publishedAll 
+@released
+*/
+EXPORT_C TInt CFbsTypefaceStore::InstallFile(const TDesC& aName,TInt& aId)
+	{
+	TPckgBuf<TIntParcel> ip;
+	aId=0;
+	TIpcArgs args(&aName,aName.Length(),&ip);
+	TInt ret=iFbs->SendCommand(EFbsMessInstallFontStoreFile,args);
+	if(ret==KErrNone)
+		aId=ip().iInt;
+	return(ret);
+	}
+
+/** Adds a font store file to the typeface store.
+All the fonts in added and installed font files are available to the
+GetNearestFont...() family of functions.
+Additionally Bitmap Fonts are also available to GetFontById().
+
+This function adds the typeface to a reference counted list of fonts. Each 
+client that adds the typeface to the store increases the reference count. 
+The count is decremented when a client using the typeface is destroyed or 
+calls the RemoveFile() function. The typeface is removed from the store only 
+when the the reference count is zero (it is not being used by any clients).
+The InstallFile() function is similar, except that the typeface is not reference 
+counted, and is hence not removed when all the clients using it are destroyed.
+@param aName A descriptor containing the filename of the typeface store
+@param aId On return, contains the id of the typeface.
+@return KErrNone if successful, otherwise another of the system-wide error 
+codes.
+@see InstallFile()
+@see RemoveFile()
+@see GetFontById()
+@see GetNearestFontToDesignHeightInTwips()
+@see GetNearestFontToDesignHeightInPixels()
+@see GetNearestFontToMaxHeightInTwips()
+@see GetNearestFontToMaxHeightInPixels()
+@publishedAll 
+@released
+*/
+EXPORT_C TInt CFbsTypefaceStore::AddFile(const TDesC& aName,TInt& aId)
+	{
+	TPckgBuf<TIntParcel> ip;
+	aId=0;
+	TIpcArgs args(&aName,aName.Length(),&ip);
+	TInt ret=iFbs->SendCommand(EFbsMessAddFontStoreFile,args);
+	if(ret==KErrNone)
+		aId=ip().iInt;
+	return(ret);
+	}
+
+/** Decrements the reference count of a file which was added using 
+AddFile(), and removes it from the store if the reference count reaches zero. 
+If the font was not found in the list of reference-counted files (see AddFile()) 
+it is assumed to be an installed file (see InstallFile()) and an attempt is 
+made to remove it anyway.
+
+If the id given is 0, an attempt is made to remove all font objects from the 
+font store provided none of the fonts in the store are currently accessed,
+otherwise it has no effect.
+
+Note:
+The id passed to this function has a different meaning depending on whether 
+or not the file is a Symbian-format bitmap file. If it is a Symbian-format 
+bitmap file the id is a UID, and is the same from one session to the next. 
+If it is an Open Font System file (e.g., a TrueType file) the id is an arbitrary 
+number. Consequently the id may vary from one session to the next, and should 
+not be saved in a file: however it may be kept and used by a client as 
+long as the client is running.
+
+@param aId The id of the file to be removed/decremented, set by AddFile() 
+or InstallFile().
+@see AddFile()
+@see InstallFile()
+@publishedAll 
+@released
+*/
+EXPORT_C void CFbsTypefaceStore::RemoveFile(TInt aId)
+	{
+	iFbs->SendCommand(EFbsMessRemoveFontStoreFile,aId);
+	}
+
+/** Gets the number of typefaces supported by this store.
+@return The number of supported typefaces. 
+@see CTypefaceStore::NumTypefaces()
+@publishedAll 
+@released
+*/
+EXPORT_C TInt CFbsTypefaceStore::NumTypefaces() const
+	{
+	return(iFbs->SendCommand(EFbsMessNumTypefaces));
+	}
+
+/**
+Gets the font which is the nearest to the given font specification.
+
+When the font is no longer needed, call @c ReleaseFont().
+
+Note that this deprecated function is replaced by the new @c GetNearestFontToDesignHeightInTwips() 
+yielding (virtually) the same result. However clients are strongly encouraged to use the new
+@c GetNearestFontToMaxHeightInTwips() function instead. This will guarantee that every 
+character within any given text string will fit within the given amount of twips, whereas the design 
+height is an aesthetic unit decided by the font designer without strict physical meaning, which 
+may result in cropped characters.
+
+Chooses from the fonts loaded at system startup or through the AddFile()
+or InstallFile() APIs.
+
+@param aFont On return, contains a pointer to the nearest font.
+@param aFontSpec The specification of the font to be matched.
+@return KErrNone if successful; a system-wide error code otherwise.
+@publishedAll
+@see GetNearestFontToDesignHeightInTwips()
+@see GetNearestFontToMaxHeightInTwips()
+@see AddFile()
+@see InstallFile()
+*/
+EXPORT_C TInt CFbsTypefaceStore::GetNearestFontInTwips(CFont*& aFont, const TFontSpec& aFontSpec)
+	{
+	return GetNearestFontToDesignHeightInTwips(aFont, aFontSpec);
+	}
+
+/**
+Gets the font which is the nearest to the given font specification.
+
+When the font is no longer needed, call @c ReleaseFont().
+
+Note that this deprecated function is replaced by the new @c GetNearestFontToDesignHeightInPixels() 
+yielding (virtually) the same result. However clients are strongly encouraged to use the new
+@c GetNearestFontToMaxHeightInPixels() function instead. This will guarantee that every 
+character within any given text string will fit within the given amount of pixels, whereas the design 
+height is an aesthetic unit decided by the font designer without strict physical meaning, which 
+may result in cropped characters.
+
+Chooses from the fonts loaded at system startup or through the AddFile()
+or InstallFile() APIs.
+
+@param aFont On return, contains a pointer to the nearest font.
+@param aFontSpec The specification of the font to be matched.
+@return KErrNone if successful; a system-wide error code otherwise.
+@publishedAll
+@deprecated Use GetNearestFontToDesignHeightInPixels
+@see GetNearestFontToDesignHeightInPixels()
+@see GetNearestFontToMaxHeightInPixels()
+@see AddFile()
+@see InstallFile()
+*/
+EXPORT_C TInt CFbsTypefaceStore::GetNearestFontInPixels(CFont*& aFont,const TFontSpec& aFontSpec)
+	{
+	return GetNearestFontToDesignHeightInPixels(aFont, aFontSpec);
+	}
+
+TInt CFbsTypefaceStore::GetNearestFontInTwipsAndCreateFont(
+	CFont*&				aFont,
+	TInt				aFbsMessage, // a TFbsMessage
+	const TFontSpec&	aFontSpec,
+	TInt				aMaxHeight)
+	{
+	aFont = iTwipsCache->Search(aFontSpec);
+	if (aFont)
+		{
+		if (IncrementFontCount(aFont))
+			{
+			return KErrNone;
+			}
+		Panic(EFbsTypefaceStoreError);
+		}
+
+	TInt ret = SendGetNearestFontCommandNCreateFont(
+		aFont, aFbsMessage, aFontSpec, aMaxHeight);
+	if (KErrNone != ret)
+		{
+		return ret;
+		}
+
+	CFont* discard = NULL;
+	/* We are deliberately storing in the cache the TFontSpec requested by the client 
+	 * and not the REAL TFontSpec of the font returned by the font matcher.
+	 * We are doing this for performance reasons: to use the Font Cache as much as possible. 
+	 * Unless the requested font spec is really complete, including all the different flags 
+	 * and sub fields, there is only a very small chance that the TFontSpec requested 
+	 * by the client would be exactly the same as the best match returned by the server.
+	 * Since some flags (iFontStyle.iFlags and iTypeFace.iFlags) are quite complex and 
+	 * in general the client don't set up all of them perfectly.
+	 * So in order to decrease the number of entries in the cache AND also the requests
+	 * to the server, it's better to associate the TFontSpec asked for by the client 
+	 * with the CFont found so that next time we ask for it, it will be in the cache.
+	 * 
+	 * If we request 2 different font specs that both have the same real font as their 
+	 * best match then each will appear in the cache but the CFont pointer in both entries
+	 * will point to the same real CFont (no copies)
+	 * 
+	 * PS: a problem is known because of doing this:
+	 * if we try to get a Font which is not in the system, we obtain the best match
+	 * then if we add this Font in the system (AddFile) and ask again for this Font,
+	 * we will still have the previous one which is in the Cache and not the one added.
+	 * This problem is the result of "bad" programming/testing, in general when we use a Font,
+	 * we know it's here...
+	 */
+	TRAP(ret, discard = iTwipsCache->AddEntryL(aFont,aFontSpec));
+	if (KErrNone == ret)
+		{ 
+		// Font has been added to cache. Increment reference count, so that this font
+		// will only be destroyed once all client handles to it are released, AND it can 
+		// not fit in the cache. Even if no clients have a handle to this font, the object
+		// will still persist until other fonts force it out of the cache.
+		IncrementFontCount(aFont);
+		}
+	if (discard)
+		{ // a font was bumped out of the cache
+		ReleaseFont(discard);
+		}
+	return KErrNone;
+	}
+
+
+/**
+ get pixel size in Twips * 1000
+ @internalComponent
+ */
+void CFbsTypefaceStore::GetPixelSizeInTwips(TSize& aSize) const
+	{
+	if(iDevice)
+		{
+		aSize.iWidth = iDevice->HorizontalPixelsToTwips(1000);
+		aSize.iHeight = iDevice->VerticalPixelsToTwips(1000);
+		}
+	if(aSize.iWidth==0 || aSize.iHeight==0)
+		{
+		TMachineInfoV1Buf mibuf;
+		UserHal::MachineInfo(mibuf);
+		TSize twipsize = mibuf().iPhysicalScreenSize;
+		TSize pixelsize = mibuf().iDisplaySizeInPixels;
+		aSize.iWidth = twipsize.iWidth*1000 / pixelsize.iWidth;
+		aSize.iHeight = twipsize.iHeight*1000 / pixelsize.iHeight;
+		}
+	}
+
+
+TInt CFbsTypefaceStore::SendGetNearestFontCommandNCreateFont(
+	CFont*&				aFont,
+	TInt				aFbsMessage, // a TFbsMessage
+	const TFontSpec&	aFontSpec,
+	TInt				aMaxHeight)
+	{
+	TPckgBuf<TFontSpec> pckgFontSpec(aFontSpec);
+	TSize pixelSize;
+	GetPixelSizeInTwips(pixelSize);
+	TSizeInfo info(aMaxHeight, pixelSize);
+	TPckgBuf<TSizeInfo>		pckgMaxHeight(info);
+	TPckgBuf<TFontInfo> pckgFontInfo;
+	TIpcArgs args(&pckgFontSpec, &pckgFontInfo, &pckgMaxHeight);
+	const TInt ret = iFbs->SendCommand(aFbsMessage, args);
+	if (KErrNone != ret)
+		{
+		return ret;
+		}
+	return CreateFont(aFont, pckgFontInfo());
+	}
+
+/**
+Gets the font which is the nearest to the given font specification.
+
+When the font is no longer needed, call @c ReleaseFont().
+
+This new function replaces the deprecated @c GetNearestFontInTwips() yielding (virtually) the 
+same result. However clients are strongly encouraged to use the new
+@c GetNearestFontToMaxHeightInTwips() function instead. This will guarantee that every 
+character within any given text string will fit within the given amount of twips, whereas the design 
+height is an aesthetic unit decided by the font designer without strict physical meaning, which 
+may result in cropped characters.
+
+Chooses from the fonts loaded at system startup or through the AddFile()
+or InstallFile() APIs.
+
+@param aFont On return, contains a pointer to the nearest font.
+@param aFontSpec The specification of the font to be matched.
+@return KErrNone if successful; a system-wide error code otherwise.
+@publishedAll
+@released
+@see GetNearestFontToMaxHeightInTwips()
+@see AddFile()
+@see InstallFile()
+*/
+EXPORT_C TInt CFbsTypefaceStore::GetNearestFontToDesignHeightInTwips(CFont*& aFont, const TFontSpec& aFontSpec)
+	{
+	return GetNearestFontInTwipsAndCreateFont(aFont, EFbsMessGetNearestFontToDesignHeightInTwips, aFontSpec);
+	}
+
+/**
+Gets the font which is the nearest to the given font specification.
+
+When the font is no longer needed, call @c ReleaseFont().
+
+This new function replaces the deprecated @c GetNearestFontInPixels() yielding (virtually) the 
+same result. However clients are strongly encouraged to use the new
+@c GetNearestFontToMaxHeightInPixels() function instead. This will guarantee that every 
+character within any given text string will fit within the given amount of pixels, whereas the design 
+height is an aesthetic unit decided by the font designer without strict physical meaning, which 
+may result in cropped characters.
+
+Chooses from the fonts loaded at system startup or through the AddFile()
+or InstallFile() APIs.
+
+@param aFont On return, contains a pointer to the nearest font.
+@param aFontSpec The specification of the font to be matched.
+@return KErrNone if successful; a system-wide error code otherwise.
+@publishedAll
+@released
+@see GetNearestFontToMaxHeightInPixels()
+@see AddFile()
+@see InstallFile()
+*/
+EXPORT_C TInt CFbsTypefaceStore::GetNearestFontToDesignHeightInPixels(CFont*& aFont, const TFontSpec& aFontSpec)
+	{
+	return SendGetNearestFontCommandNCreateFont(aFont, EFbsMessGetNearestFontToDesignHeightInPixels, aFontSpec);
+	}
+
+/**
+Gets the font which is the nearest to the given font specification.
+
+When the font is no longer needed, call @c ReleaseFont().
+
+The font and bitmap server returns a pointer to the nearest matching font 
+from those available. Matches to max height of font - this does its best 
+to return a font that will fit within the maximum height specified (but 
+note that variations due to hinting algorithms may rarely result in this 
+height being exceeded by up to one pixel). Problems can also be 
+encountered with bitmap fonts where the typeface exists but doesn't have 
+a font small enough.
+
+Chooses from the fonts loaded at system startup or through the AddFile()
+or InstallFile() APIs.
+
+@param aFont On return, contains a pointer to the nearest font.
+@param aFontSpec The specification of the font to be matched.
+@param aMaxHeight The maximum height within which the font must fit.
+This overrides the height specified in aFontSpec.
+@return KErrNone if successful; a system-wide error code otherwise.
+@publishedAll
+@released
+@see GetNearestFontToDesignHeightInTwips()
+@see AddFile()
+@see InstallFile()
+*/
+EXPORT_C TInt CFbsTypefaceStore::GetNearestFontToMaxHeightInTwips(CFont*& aFont, const TFontSpec& aFontSpec, TInt aMaxHeight)
+	{
+	return GetNearestFontInTwipsAndCreateFont(aFont, EFbsMessGetNearestFontToMaxHeightInTwips, aFontSpec, aMaxHeight);
+	}
+
+/**
+Gets the font which is the nearest to the given font specification.
+
+When the font is no longer needed, call @c ReleaseFont().
+
+The font and bitmap server returns a pointer to the nearest matching font 
+from those available. Matches to max height of font - this does its best 
+to return a font that will fit within the maximum height specified (but 
+note that variations due to hinting algorithms may rarely result in this 
+height being exceeded by up to one pixel). Problems can also be 
+encountered with bitmap fonts where the typeface exists but doesn't have 
+a font small enough.
+
+Chooses from the fonts loaded at system startup or through the AddFile()
+or InstallFile() APIs.
+
+@param aFont On return, contains a pointer to the nearest font.
+@param aFontSpec The specification of the font to be matched.
+@param aMaxHeight The maximum height within which the font must fit.
+This overrides the height specified in aFontSpec.
+@return KErrNone if successful; a system-wide error code otherwise.
+@publishedAll
+@released
+@see GetNearestFontToDesignHeightInPixels()
+@see AddFile()
+@see InstallFile()
+*/
+EXPORT_C TInt CFbsTypefaceStore::GetNearestFontToMaxHeightInPixels(CFont*& aFont, const TFontSpec& aFontSpec, TInt aMaxHeight)
+	{
+	return SendGetNearestFontCommandNCreateFont(aFont, EFbsMessGetNearestFontToMaxHeightInPixels, aFontSpec, aMaxHeight);
+	}
+
+/** Gets a Bitmap Font by unique identifier and algorithmic drawing style.
+Chooses from the Bitmap fonts loaded at system startup or through the AddFile()
+or InstallFile() APIs.
+
+@param aFont On return, contains a pointer to the retrieved font.
+@param aUid The unique identifier of the font to be retrieved.
+@param aAlgStyle Algorithmic style to be applied. e.g. Sets things like algorithmic 
+bolding, or slant for pseudo-italics.
+@return KErrNone if successful, otherwise another of the system-wide error 
+codes.
+@publishedAll 
+@released
+@see GetNearestFontToMaxHeightInTwips()
+@see GetNearestFontToDesignHeightInTwips()
+@see GetNearestFontToMaxHeightInPixels()
+@see GetNearestFontToDesignHeightInPixels()
+@see AddFile()
+@see InstallFile()
+*/
+EXPORT_C TInt CFbsTypefaceStore::GetFontById(CFont*& aFont,TUid aUid,const TAlgStyle& aAlgStyle)
+	{
+	TPckgBuf<TFontInfo> tfpckg;
+	TSize pixelSize;
+	GetPixelSizeInTwips(pixelSize);
+	TPckgBuf<TSize> sizePkg(pixelSize);
+	TPckgBuf<TAlgStyle> stylepckg(aAlgStyle);
+	TIpcArgs args(&tfpckg,&stylepckg,aUid.iUid, &sizePkg);
+	TInt ret=iFbs->SendCommand(EFbsMessGetFontById,args);
+	if(ret!=KErrNone) return(ret);
+	return(CreateFont(aFont,tfpckg()));
+	}
+
+TInt CFbsTypefaceStore::CreateFont(CFont*& aFont, const TFontInfo& aFontInfo)
+	{
+	if (!aFontInfo.iHandle)
+		{
+		Panic(EFbsFontCreateFailed);
+		}
+	if (IsFontLoaded(aFont, aFontInfo))
+		{
+		// By now, a new server-side font object has been created for the requested 
+		// TFontSpec. However IsFontLoaded() is true, meaning the client already has a 
+		// font at this address. This can happen if a closely matching (but not exact, 
+		// otherwise it would be found in the twipscache already) TFontSpec is sent to 
+		// the server. 
+		// This means the new server-side font is a duplicate another server-side font. 
+		// Therefore tell the server to destroy the one just created, and return the 
+		// font that was already created.
+		iFbs->SendCommand(EFbsMessClose, aFontInfo.iHandle);
+		return KErrNone;
+		}
+
+	CFbsFont* font = new CFbsFont;
+	if (!font)
+		{
+		iFbs->SendCommand(EFbsMessClose, aFontInfo.iHandle);
+		return KErrNoMemory;
+		}
+	font->iHandle = aFontInfo.iHandle;
+	font->iServerHandle = aFontInfo.iServerHandle;
+	font->iAddressPointer = (CBitmapFont*)(iFbs->HeapBase() + aFontInfo.iAddressOffset);
+	TRAPD(ret, AddFontL(font));
+	if (KErrNone == ret)
+		{
+		aFont = font;
+		}
+	else
+		{
+		delete font;
+		}
+	return ret;
+	}
+
+TBool CFbsTypefaceStore::IsFontLoaded(CFont*& aFont, const TFontInfo& aFontInfo) const
+/**
+@see CFontStore::IsFontLoaded
+@see CPdrTypefaceStore::IsFontLoaded
+*/
+	{
+	const TInt count = iFontAccess->Count();
+	for (TInt i = 0; i < count; i++)
+		{
+		CFont* font = (*iFontAccess)[i].iFont;
+		if (((CFbsFont*)font)->iAddressPointer ==
+			(CBitmapFont*)(iFbs->HeapBase() + aFontInfo.iAddressOffset))
+			{
+			(*iFontAccess)[i].iAccessCount++;
+			aFont = font;
+			return ETrue;
+			}
+		}
+	return EFalse;
+	}
+
+/** Gets typeface information for a specified typeface index.
+This information is returned in aTypefaceSupport, and includes the typeface 
+name and typeface attributes, the number of font heights, the maximum and 
+minimum font heights, and whether it is a scaleable typeface.
+
+Returns benignly with an empty TTypefaceSupport if the index is too high; 
+this can happen if another process removes a typeface after the first process 
+has already got the number of typefaces. However, if the aTypefaceIndex<0 
+the function panics with EFbsTypefaceIndexOutOfRange.
+
+@param aTypefaceSupport On return, if the function executed successfully, 
+this object contains the typeface information. 
+@param aTypefaceIndex A typeface index number, in the range: zero to (NumTypefaces() - 1). 
+@see CTypefaceStore::TypefaceSupport() 
+@publishedAll 
+@released
+*/
+EXPORT_C void CFbsTypefaceStore::TypefaceSupport(TTypefaceSupport& aTypefaceSupport,TInt aTypefaceIndex) const
+	{
+	__ASSERT_ALWAYS( aTypefaceIndex >= 0, Panic(EFbsTypefaceIndexOutOfRange) );
+	TSize pixelSize;
+	GetPixelSizeInTwips(pixelSize);
+	TPckgBuf<TSize> sizePkg(pixelSize);
+	TPckgBuf<TTypefaceSupport> tfi;
+	TIpcArgs args(aTypefaceIndex,&tfi, &sizePkg);
+	iFbs->SendCommand(EFbsMessTypefaceSupport,args);
+	aTypefaceSupport=tfi();
+	}
+
+/** Gets the height of the font with specified height and typeface indices, in 
+twips.
+The value returned is rounded up or down to the nearest font height in twips.
+
+If aTypefaceIndex<0 the function panics with EFbsTypefaceIndexOutOfRange. 
+If aTypefaceIndex is greater than the number of typefaces or aHeightIndex<0 
+then the function returns 0. If aHeightIndex is greater than the number of 
+heights then the function returns the biggest height. 
+
+@param aTypefaceIndex A typeface index number, in the range: 0 to (NumTypefaces() - 1). 
+@param aHeightIndex A font height index number, in the range: 0 to (TTypefaceSupport::iNumHeights - 1). 
+Note: TTypefaceSupport::iNumHeights is returned by TypefaceSupport(). 
+@return The height of the font, in twips.
+@see CTypefaceStore::FontHeightInTwips()
+@publishedAll 
+@released
+*/
+EXPORT_C TInt CFbsTypefaceStore::FontHeightInTwips(TInt aTypefaceIndex,TInt aHeightIndex) const
+	{
+	return FontHeight(aTypefaceIndex,aHeightIndex,EFbsMessFontHeightInTwips);
+	}
+
+/** Gets the height of the font with specified height and typeface indices, in 
+pixels.
+The value returned is rounded up or down to the nearest font height in pixels.
+
+If aTypefaceIndex<0 the function panics with EFbsTypefaceIndexOutOfRange. 
+If aTypefaceIndex is greater than the number of typefaces or aHeightIndex<0 
+then the function returns 0. If aHeightIndex is greater than the number of 
+heights then the function returns the biggest height. 
+
+@param aTypefaceIndex A typeface index number, in the range: 0 to (NumTypefaces() - 1). 
+@param aHeightIndex A font height index number, in the range: 0 to (TTypefaceSupport::iNumHeights - 1). 
+Note: TTypefaceSupport::iNumHeights is returned by TypefaceSupport(). 
+@return The height of the font, in pixels.
+@publishedAll 
+@released
+*/
+EXPORT_C TInt CFbsTypefaceStore::FontHeightInPixels(TInt aTypefaceIndex,TInt aHeightIndex) const
+	{
+	return FontHeight(aTypefaceIndex,aHeightIndex,EFbsMessFontHeightInPixels);
+	}
+
+TInt CFbsTypefaceStore::FontHeight(TInt aTypefaceIndex,TInt aHeightIndex,TInt aMessage) const
+	{
+	__ASSERT_ALWAYS( aTypefaceIndex >= 0, Panic(EFbsTypefaceIndexOutOfRange) );
+	TSize pixelSize;
+	GetPixelSizeInTwips(pixelSize);
+	TPckgBuf<TSize> sizePkg(pixelSize);
+	TIpcArgs args(aTypefaceIndex, aHeightIndex, &sizePkg);
+	return iFbs->SendCommand(aMessage, args);
+	}
+
+/** Gets the default anti-aliasing setting for scalable fonts.
+@return Indicates whether or not scalable fonts should be drawn using 
+anti-aliasing.
+@publishedAll 
+@released
+*/
+EXPORT_C TGlyphBitmapType CFbsTypefaceStore::DefaultBitmapType() const
+	{
+	return (TGlyphBitmapType)iFbs->SendCommand(EFbsMessGetDefaultGlyphBitmapType);
+	}
+
+/** Sets the default anti-aliasing setting for scalable fonts. Unless this 
+default setting is overridden so that a font is explicitly requested with 
+anti-aliasing turned on or off, (see TOpenFontSpec::SetBitmapType() or 
+TFontStyle::SetBitmapType()), fonts will use the default setting. The default 
+setting would typically only be changed via the Control Panel. The new setting 
+affects fonts requested after the change has been made.
+There is currently no anti-aliasing support for bitmapped fonts.
+@param aType Indicates whether or not scalable fonts should be drawn using 
+anti-aliasing.
+@see TOpenFontSpec::SetBitmapType()
+@see TFontStyle::SetBitmapType()
+@publishedAll 
+@released
+*/
+EXPORT_C void CFbsTypefaceStore::SetDefaultBitmapType(TGlyphBitmapType aType) const
+	{
+	iFbs->SendCommand(EFbsMessSetDefaultGlyphBitmapType,aType);
+	}
+
+/** Sets an alias for a font name.
+
+If a requested font cannot be found and its name occurs in the alias list
+then it will be searched for again using the font name corresponding to
+that alias. If an empty font name is passed then the alias will be removed
+the list.
+@param  TDesC& The font name alias to set.
+@param TDesC&  The actual font name to use for this alias. May be empty.
+@publishedAll 
+@released
+*/
+EXPORT_C void CFbsTypefaceStore::SetFontNameAliasL(const TDesC& aFontAlias,const TDesC& aFontName) const
+	{
+	TIpcArgs args(&aFontAlias,aFontAlias.Length(),&aFontName,aFontName.Length());
+	User::LeaveIfError(iFbs->SendCommand(EFbsMessFontNameAlias,args));
+	}
+
+/** Specifies the default language with which font metrics calculation will be based on.
+The default language will be used if none is set on the font specification.
+@publishedAll 
+@released
+@see TFontSpec::SetScriptTypeForMetrics
+*/
+EXPORT_C void CFbsTypefaceStore::SetDefaultLanguageForMetrics(TLanguage aLanguage) const
+	{
+	iFbs->SendCommand(EFbsMessDefaultLanguageForMetrics, aLanguage);
+	}
+
+/**
+Unload all fonts loaded from RAM or removable media
+@internalTechnology
+@deprecated
+*/
+EXPORT_C void CFbsTypefaceStore::RemoveFontFileLocksL()
+	{
+	User::Leave(KErrNotSupported);
+	}
+
+/**
+Unload all fonts (of specified type) loaded from named drive
+@internalTechnology
+*/
+EXPORT_C void CFbsTypefaceStore::RemoveFontFileLocksL(const TDesC& /*aDrive*/, TBool /*aAllFonts*/)
+	{
+	User::Leave(KErrNotSupported);
+	}
+
+/**
+Unload the named font file
+@internalTechnology
+*/
+EXPORT_C void CFbsTypefaceStore::RemoveFontFileLocksL(const TDesC& /*aFileName*/)
+	{
+	User::Leave(KErrNotSupported);
+	}
+
+/** Reset the twips cache.
+
+The Typeface Store remembers font matches found through GetNearestFont...InTwips() family 
+of functions in a cache for quicker matching.  This function empties the cache, and should be
+called after the screen mode is changed as the Twips to pixels relationship may have changed.
+@publishedAll
+*/
+EXPORT_C void CFbsTypefaceStore::ReleaseTwipsCache()
+	{
+	if(iTwipsCache)
+		{
+		CFont* font=iTwipsCache->RemoveFirstEntry();
+		while(font!=NULL)
+			{
+			ReleaseFont(font);
+			font=iTwipsCache->RemoveFirstEntry();
+			}
+		}
+	}
+
+/**
+Sets the system default font typeface. This font will be used when finding the nearest font and the font specified is
+an empty descriptor.
+If the system default font is not set, then the default behaviour is to find the nearest match.
+
+@capability WriteDeviceData
+@param aFontTypefacename is the font typeface to use as the system default. A font alias cannot be used.
+*/
+EXPORT_C void CFbsTypefaceStore::SetSystemDefaultTypefaceNameL(const TDesC& aFontTypefaceName)
+	{
+	if (aFontTypefaceName.Length() <= KMaxTypefaceNameLength)
+		{
+		TIpcArgs args(&aFontTypefaceName);
+		User::LeaveIfError(iFbs->SendCommand(EFbsSetSystemDefaultTypefaceName, args));		
+		}
+	else
+		User::Leave(KErrTooBig);	// Typeface name is too large
+	}
+
+/**
+Function to add a CLinkedTypefaceSpecification to the font and bitmap server typeface store.
+@capability ECapabilityWriteDeviceData
+@publishedPartner
+@released
+@param aLinkedTypefaceSpec  The typeface specification to be added.  Ownership is not transferred.
+@param aId A unique identifier
+@return A global error code
+@see CLinkedTypefaceSpecification
+@deprecated
+*/
+EXPORT_C TInt CFbsTypefaceStore::RegisterLinkedTypeface(const CLinkedTypefaceSpecification& /*aLinkedTypefaceSpec*/, TInt& /*aId*/)
+	{
+	return KErrNotSupported;
+	}
+
+/**
+	Function to add a CLinkedTypefaceSpecification to the font and bitmap server typeface store.
+	@capability ECapabilityWriteDeviceData
+	@publishedPartner
+	@released
+	@param aLinkedTypefaceSpec.  The typeface specification to be added.  Ownership is not transferred.
+	@return a global error code
+	@see CLinkedTypefaceSpecification
+	*/
+EXPORT_C TInt CFbsTypefaceStore::RegisterLinkedTypeface(const CLinkedTypefaceSpecification& aLinkedTypefaceSpec)
+	{
+	__ASSERT_ALWAYS(iFbs,Panic(EFbsPanicNoConnection));
+	
+	// send the name
+	TPckgBuf <TLinkedTypefaceSpecificationArgs> pckgbuf;
+	TLinkedTypefaceSpecificationArgs &typefaceArgs=pckgbuf();
+	
+	typefaceArgs = aLinkedTypefaceSpec;
+
+	TIpcArgs args(&pckgbuf,sizeof(TPckgBuf <TLinkedTypefaceSpecificationArgs>));
+	
+	return iFbs->SendCommand(EFbsMessRegisterLinkedTypeface,args);
+	}
+/**
+Function to retrieve a linked typeface specification from the installed rasterizer.
+If there is not a rasterizer present supporting font linking then KErrNotSupported will be returned.
+The rasterizer is name specified within the passed specification and fills in the elements and
+groups if the typeface exists.
+
+	@param CLinkedTypefaceSpecificaion& The typeface Specification with the name set to be the typeface to be retrieved.
+	
+	@leave KErrNoMemory if there is insufficient memory available
+	@leave KErrServerTerminated if the server no longer present 
+	@leave KErrServerBusy if there are no message slots available  
+ */
+EXPORT_C void CFbsTypefaceStore::GetLinkedTypefaceL(CLinkedTypefaceSpecification& aLinkedTypefaceSpec)
+	{
+	TBuf<KMaxTypefaceNameLength> linkedName = aLinkedTypefaceSpec.Name();
+	
+	TLinkedTypefaceSpecificationArgs returnSpec;
+	TPckgBuf<TLinkedTypefaceSpecificationArgs> specPkg;
+	
+	TIpcArgs args;
+	args.Set(0,&linkedName);
+	args.Set(2,&specPkg);
+
+	User::LeaveIfError(iFbs->SendCommand(EFbsMessFetchLinkedTypeface, args));
+	
+	aLinkedTypefaceSpec.Clear();
+	returnSpec = specPkg();
+	
+	TInt i;
+	for (i = 0 ; i < returnSpec.iGroupSize ; i++)
+		{
+		CLinkedTypefaceGroup* grp = CLinkedTypefaceGroup::NewLC(returnSpec.iGroups[i].iGroupId);
+		grp->SetBaselineShift(returnSpec.iGroups[i].iBaselineShift);
+		grp->SetScalingOption(returnSpec.iGroups[i].iScalingOption);
+		grp->SetBoldnessPercentage(returnSpec.iGroups[i].iBoldnessPercentage);
+		grp->SetItalicAngle(returnSpec.iGroups[i].iItalicAngle);
+		aLinkedTypefaceSpec.AddLinkedTypefaceGroupL(*grp);
+		CleanupStack::Pop(grp);
+		}
+	for (i = 0 ; i < returnSpec.iSize ; i++)
+		{
+		CLinkedTypefaceElementSpec* ele = CLinkedTypefaceElementSpec::NewLC(returnSpec.iTypefaces[i].iName, returnSpec.iTypefaces[i].iGroupId);
+		ele->SetCanonical(returnSpec.iTypefaces[i].iIsCanonical);
+		aLinkedTypefaceSpec.AddTypefaceAtBackL(*ele);
+		CleanupStack::Pop(ele);
+		}
+	}
+
+/**
+Function to update an existing linked typeface with a new specification. If successful a temporary file is generated and this will replace the
+linked font after a reboot. Calls to FetchLinkedTypefaceSpecificationL will return the currently loaded linked font spec and not the
+updated specification. 
+
+@param aLinkedTypefaceSpec A new linked font specification to replace an existing file
+
+@panic EFbsPanicNoConnection There is no connection to FontBitmap Server
+
+@return TInt One of the system wide error codes
+*/
+EXPORT_C TInt CFbsTypefaceStore::UpdateLinkedTypeface(const CLinkedTypefaceSpecification& aLinkedTypefaceSpec)
+	{
+	__ASSERT_ALWAYS(iFbs,Panic(EFbsPanicNoConnection));
+
+	TPckgBuf <TLinkedTypefaceSpecificationArgs> pckgbuf;
+	TLinkedTypefaceSpecificationArgs &typefaceArgs=pckgbuf();
+	
+	typefaceArgs = aLinkedTypefaceSpec;
+
+	TIpcArgs args(&pckgbuf,sizeof(TPckgBuf <TLinkedTypefaceSpecificationArgs>));
+	
+	return iFbs->SendCommand(EFbsMessUpdateLinkedTypeface,args);
+	}
+