fontservices/textbase/inc/glyphsample.h
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Mon, 12 Jul 2010 14:38:26 +0800
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// Copyright (c) 1998-2010 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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// GlyphSample class.
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#ifndef GLYPHSAMPLE_H
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#define GLYPHSAMPLE_H
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/**
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Provides methods to map a TLanguage type to some pre-defined glyph samples.
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Samples are defined per writing script, e.g. specifying ELangFrench or
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ELangGerman will return the same set of samples.
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These samples are typically the tallest and 'deep'est characters w.r.t
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various scripts, useful for font rasterizers when calculating metrics.
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@internalTechnology
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*/
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NONSHARABLE_CLASS(GlyphSample)
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	{
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public:
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	/**
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	Writing scripts defined according to Unicode.
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	*/
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	enum TScript
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		{
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		EScriptDefault			= 0x0,	// No script, can't be bothered
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		EScriptNone				= 0x1,	// No script, really
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		EScriptOther			= 0x2,	// Unsupported scripts
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		EScriptLatin			= 0x3,	// European
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		EScriptGreek			= 0x4,	// European
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		EScriptCyrillic			= 0x5,	// European
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		EScriptHebrew			= 0x6,	// Middle Eastern
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		EScriptArabic			= 0x7,	// Middle Eastern
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		EScriptDevanagari		= 0x8,	// Indic
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		EScriptThai				= 0x9,	// SE Asian
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		EScriptHanIdeographs	= 0xA,	// E Asian
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		};
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public:
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	IMPORT_C static TInt TLanguage2TScript(TLanguage aLanguage);
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	IMPORT_C static const TPtrC TScript2GlyphSample(TInt aScript);
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private:
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	static const TInt KTLanguage2TScript[];
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	static const TText* const KTScript2GlyphSample[];
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	};
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#endif /* GLYPHSAMPLE_H */