svgtopt/gfx2d/src/GfxGc/GfxRenderingHints.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 27 Apr 2010 17:34:09 +0300
branchRCL_3
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permissions -rw-r--r--
Revision: 201016 Kit: 201017
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/*
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* Copyright (c) 2002 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:  Graphics Extension Library source file
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*
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*/
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#include "GfxRenderingHints.h"
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const TUint32 KCurveQualityMask = 0x00000007;  // bit 0-2
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const TUint32 KVisibilityMask = 0x00000008;    // bit 3
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const TUint32 KFontEngineMask = 0x00000010;    // bit 4
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// --------------------------------------------------------------------------
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//  TGfxRenderingHints::TGfxRenderingHints()
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// ---------------------------------------------------------------------------
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 TGfxRenderingHints::TGfxRenderingHints()
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    {
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    iHintBits = KVisibilityMask;    // Default visibility = visible
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    iHintBits |= ( KCurveQualityMask & 2 ); // Default Flattening level = 2
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    // Notes:
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    //   KFontEngineMask bitp is 0 -> use scalable font as default
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    }
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// ==========================================================================
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// Visibility
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// ==========================================================================
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// --------------------------------------------------------------------------
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//  void TGfxRenderingHints::SetVisibility( TBool aVisibility )
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// ---------------------------------------------------------------------------
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 void TGfxRenderingHints::SetVisibility( TBool aVisibility )
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    {
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    if ( aVisibility )
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        {
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        iHintBits |= KVisibilityMask;
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        }
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    else
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        {
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        iHintBits &= ~KVisibilityMask;
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        }
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    }
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// --------------------------------------------------------------------------
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//  TBool TGfxRenderingHints::Visibility()
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// ---------------------------------------------------------------------------
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 TBool TGfxRenderingHints::Visibility()
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    {
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    return ( ( iHintBits & KVisibilityMask ) != 0 );
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    }
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// ==========================================================================
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// Curve quality
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// ==========================================================================
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// --------------------------------------------------------------------------
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//  void TGfxRenderingHints::SetCurveQuality( TInt aCurveQuality )
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// ---------------------------------------------------------------------------
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 void TGfxRenderingHints::SetCurveQuality( TInt aCurveQuality )
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    {
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    iHintBits &= ~KCurveQualityMask;                    // clear
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    iHintBits |= ( KCurveQualityMask & aCurveQuality ); // set
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    }
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// --------------------------------------------------------------------------
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//  TInt TGfxRenderingHints::CurveQuality()
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// ---------------------------------------------------------------------------
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 TInt TGfxRenderingHints::CurveQuality()
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    {
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    return ( iHintBits & KCurveQualityMask );
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    }
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// ==========================================================================
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// switch rendering engine (Open Font system/bitmap font)
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// ==========================================================================
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// --------------------------------------------------------------------------
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//  void TGfxRenderingHints::SetFastFontRendering( TBool aFastFontRendering )
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// ---------------------------------------------------------------------------
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 void TGfxRenderingHints::SetFastFontRendering( TBool aFastFontRendering )
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    {
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    if ( aFastFontRendering )
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        {
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        iHintBits |= KFontEngineMask;
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        }
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    else
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        {
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        iHintBits &= ~KFontEngineMask;
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        }
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    }
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// --------------------------------------------------------------------------
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//  TBool TGfxRenderingHints::FastFontRendering()
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// ---------------------------------------------------------------------------
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 TBool TGfxRenderingHints::FastFontRendering()
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    {
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    return ( ( iHintBits & KFontEngineMask ) != 0 );
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    }
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// --------------------------------------------------------------------------
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//  void TGfxRenderingHints::SetShapeAntiAliasing( TBool /* aShapeAntiAliasing */ )
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// ---------------------------------------------------------------------------
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 void TGfxRenderingHints::SetShapeAntiAliasing( TBool /* aShapeAntiAliasing */ )
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    {
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    }
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// --------------------------------------------------------------------------
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//  TBool TGfxRenderingHints::ShapeAntiAliasing()
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// ---------------------------------------------------------------------------
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 TBool TGfxRenderingHints::ShapeAntiAliasing()
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    {
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    return EFalse;
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    }
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// --------------------------------------------------------------------------
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//  TGfxImageInterpolation TGfxRenderingHints::ImageInterpolation()
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// ---------------------------------------------------------------------------
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 TGfxImageInterpolation TGfxRenderingHints::ImageInterpolation()
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    {
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    return EGfxInterpolationNearestNeighbor;
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    }
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