author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Wed, 15 Sep 2010 14:10:32 +0300 | |
branch | RCL_3 |
changeset 65 | 795cadd2b83a |
parent 0 | 1fb32624e06b |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* Inline implementations for TMSTD header. |
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* |
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*/ |
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/** |
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@file |
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*/ |
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inline CTmTextFontCache::CTmTextFontCache(MGraphicsDeviceMap& aDevice, CFont& aFont) |
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: iRefCount(1), iDevice(aDevice), iFont(aFont) |
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{} |
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/** |
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The constructor is protected by a New here not because there is a 2 stage constructor, |
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but to enforce that this object should be allocated on the heap, so that 'delete this' works |
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This reference counting is required because this object can be deleted by either (1) a client of RTmTextCache |
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when it is finished using a font, or (2) by the RTmTextCache itself, when the font in the cache is replaced |
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*/ |
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inline CTmTextFontCache* CTmTextFontCache::New(MGraphicsDeviceMap& aDevice, CFont& aFont) |
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{ |
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return new CTmTextFontCache(aDevice, aFont); |
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} |
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/** |
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This should be called before the font is retrieved and used |
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Open does not need to be called by the creator of the font (the reference count is initialized to 1) |
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*/ |
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inline void CTmTextFontCache::Open() |
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{ |
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iRefCount++; |
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} |
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/** |
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This should be called when the font is no longer used. The font is released when all references have been closed. |
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*/ |
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inline void CTmTextFontCache::Close() |
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{ |
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ASSERT(iRefCount > 0); |
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iRefCount--; |
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if (0 == iRefCount) |
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{ |
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delete this; |
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} |
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} |
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inline CTmTextFontCache::~CTmTextFontCache() |
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{ |
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iDevice.ReleaseFont(&iFont); |
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} |
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inline CFont& CTmTextFontCache::Font() |
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{ |
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ASSERT(iRefCount >= 0); |
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return iFont; |
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} |
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