diff -r 000000000000 -r 5d03bc08d59c windowing/windowserver/nonnga/remotegc/FontsCache.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/windowing/windowserver/nonnga/remotegc/FontsCache.cpp Tue Feb 02 01:47:50 2010 +0200 @@ -0,0 +1,93 @@ +// Copyright (c) 2006-2009 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 "FontsCache.h" + +NONSHARABLE_CLASS(CCachedFont) : public CFbsFont + { +public: + CCachedFont(); + ~CCachedFont(); + + TInt Duplicate(TInt aHandle); //lint !e1511 + }; + +CCachedFont::CCachedFont() + { + } + +CCachedFont::~CCachedFont() + { + } + +TInt CCachedFont::Duplicate(TInt aHandle) + { + return CFbsFont::Duplicate(aHandle); + } + +CFontsCache::CFontsCache() : CCacheBase() + { + } + +CFontsCache::~CFontsCache() + { + } + +/** +Enables the use of a cached font with a specified handle. +If no font with this handle is cached, the font is created and cached. + +@return KErrNone if no problem occured, otherwise a systemwide error. +*/ +TInt CFontsCache::UseL(TInt aHandle) + { + TCacheEntry entry(aHandle); + TInt index = iCachedItems.FindInUnsignedKeyOrder(entry); + if(index != KErrNotFound) + { + iCachedItems[index].iIsUsed = ETrue; + return KErrNone; + } + + entry.iCachedItem = new (ELeave) CCachedFont; + TInt err = static_cast(entry.iCachedItem)->Duplicate(aHandle); + if(err) + { + delete entry.iCachedItem; + return err; + } + + entry.iIsUsed = ETrue; + CleanupStack::PushL(entry.iCachedItem); + iCachedItems.InsertInUnsignedKeyOrderL(entry); + CleanupStack::Pop(entry.iCachedItem); + return KErrNone; + } + +/** +Returns a font from the cache corresponding to a specific handle. + +@param aHandle A handle to match against a font in the cache. +@return The font that matches the handle provided as a parameter. +*/ +const CFont* CFontsCache::Resolve(TInt aHandle) + { + const CBase* item = CCacheBase::Resolve(aHandle); + if(item != NULL) + return static_cast(item); + else + return NULL; + } +