author | chetan.kapoor@v800025.ad-sfpd.intra |
Tue, 27 Oct 2009 10:58:40 +0000 | |
branch | CompilerCompatibility |
changeset 25 | 9d87bae3dc1b |
parent 0 | dd21522fd290 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2006 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 the License "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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* |
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*/ |
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|
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#ifndef __PLATFORMFONTCACHE_H__ |
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#define __PLATFORMFONTCACHE_H__ |
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#include <gdi.h> |
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#include <wtf/Vector.h> |
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#include <wtf/HashSet.h> |
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class CWsScreenDevice; |
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class TFontSpec; |
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class CFont; |
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class AtomicString; |
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namespace WebCore |
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{ |
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class FontDescription; |
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class PlatformFontCache |
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{ |
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public: |
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struct ZoomedSpec { |
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TFontSpec m_spec; |
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int m_zoom; |
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CFont* m_font; |
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ZoomedSpec() : m_zoom(100), m_font(0) {} |
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ZoomedSpec(TFontSpec spec, int zoom, CFont* font) : m_spec(spec), m_zoom(zoom), m_font(font) {} |
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}; |
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PlatformFontCache() : iScreenDevice(0), iSupportedNames(0), iTypefaceCount(0), iFontZoomFactor(100) {} |
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~PlatformFontCache(); |
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void Initialize(); |
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const AtomicString& SystemFontFamily( const AtomicString& familyName ); |
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const AtomicString& DeviceDefaultFontFamilies(); |
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CFont* CreateFont( const ZoomedSpec& spec ); |
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void ReleaseFont(CFont* ); |
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// font-size corrected zooming |
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CFont* zoomedFont(const FontDescription&, int zoom); |
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int fontZoomFactor() const { return iFontZoomFactor; } |
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void setFontZoomFactor(int zoom); |
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TFontSpec fontSpecInTwips(const FontDescription& fontDescription); |
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struct ZoomedSpecHash { |
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static unsigned hash(const ZoomedSpec&); |
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static bool equal(const ZoomedSpec& a, const ZoomedSpec& b); |
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}; |
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struct ZoomedSpecKeyTraits : WTF::GenericHashTraits<ZoomedSpec> { |
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static const bool emptyValueIsZero = false; |
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static const bool needsDestruction = false; |
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static ZoomedSpec deletedValue() { return ZoomedSpec(TFontSpec(), 100, 0); } |
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static ZoomedSpec emptyValue() { return ZoomedSpec(TFontSpec(), 100, 0); } |
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}; |
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struct FontTraits : WTF::GenericHashTraits<CFont*> { |
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static const bool emptyValueIsZero = true; |
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static const bool needsDestruction = false; |
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static CFont* deletedValue() { return 0; } |
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}; |
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private: |
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CWsScreenDevice* iScreenDevice; // not owned |
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AtomicString* iSupportedNames; // owned |
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TInt iTypefaceCount; |
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AtomicString iDeviceDefaultFont; |
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TInt iFontZoomFactor; |
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// RVCT compiler doesn't like hashmap/hashset defined in this way, why??? |
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//WTF::HashMap<ZoomedSpec, CFont*, ZoomedSpecHash, ZoomedSpecKeyTraits, FontTraits> iFontCache; |
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//WTF::HashSet<ZoomedSpec, ZoomedSpecHash, ZoomedSpecKeyTraits> iFontCache; |
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WTF::Vector<ZoomedSpec> iFontCache; |
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}; |
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static inline bool operator==(const PlatformFontCache::ZoomedSpec& a, const PlatformFontCache::ZoomedSpec& b) { return a.m_spec == b.m_spec && a.m_zoom == b.m_zoom; } |
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static inline bool operator!=(const PlatformFontCache::ZoomedSpec& a, const PlatformFontCache::ZoomedSpec& b) { return !(a==b); } |
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} |
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#endif// !__PLATFORMFONTCACHE_H__ |