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/*
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* Copyright (c) 2003 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: SVG Implementation header file
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*
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*/
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#include "SVGAttributeVerifier.h"
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#include <limits.h>
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#include <hal.h>
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#include <hal_data.h>
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// --------------------------------------------------------------------------
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// TBool CSvgAttributeVerifier::ParseForDecimalValue( const TDesC& aNum2Str, TReal32& aValue )
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// ---------------------------------------------------------------------------
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TBool CSvgAttributeVerifier::ParseForDecimalValue( const TDesC& aNum2Str, TReal32& aValue, const TDesC& aAttrValue, TBool isSvgElement )
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{
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TLex parser( aNum2Str );
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parser.SkipSpace();
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TInt result = parser.Val( aValue, '.' );
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TChar chr;
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TBool numUnits = EFalse ;
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TPtrC16 remChars = parser.Remainder();
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TInt dimInTwips ;
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TInt dimInPixels;
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const TReal32 TwipsInCentimeters = 566.929133858268 ;
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const TReal32 TwipsInInches = 1440 ;
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const TReal32 TwipsInPt = 20 ;
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const TReal32 TwipsInPc = 240 ;
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_LIT(Kcm,"cm");
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_LIT(Kmm,"mm");
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_LIT(Kin,"in");
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_LIT(KPx,"px");
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_LIT(KPt,"pt");
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_LIT(KPc,"pc");
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_LIT(KPer,"%");
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_LIT(KWidth, "width");
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_LIT(KHeight, "height");
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if(isSvgElement)
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{
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if(aAttrValue == KWidth)
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{
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if(remChars == Kcm)
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{
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numUnits = ETrue;
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HAL::Get( HALData::EDisplayXTwips, dimInTwips );
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HAL::Get( HALData::EDisplayXPixels, dimInPixels );
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aValue *= (dimInPixels*TwipsInCentimeters)/dimInTwips ;
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}
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else if(remChars == Kmm)
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{
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numUnits = ETrue;
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HAL::Get( HALData::EDisplayXTwips, dimInTwips );
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HAL::Get( HALData::EDisplayXPixels, dimInPixels );
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aValue *= (dimInPixels*TwipsInCentimeters/10)/dimInTwips ;
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}
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else if(remChars == Kin)
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{
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numUnits = ETrue;
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HAL::Get( HALData::EDisplayXTwips, dimInTwips );
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HAL::Get( HALData::EDisplayXPixels, dimInPixels );
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aValue *= (dimInPixels*TwipsInInches)/dimInTwips ;
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}
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else if(remChars == KPt)
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{
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numUnits = ETrue;
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HAL::Get( HALData::EDisplayXTwips, dimInTwips );
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HAL::Get( HALData::EDisplayXPixels, dimInPixels );
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aValue *= (dimInPixels*TwipsInPt)/dimInTwips ;
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}
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else if(remChars == KPc)
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{
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numUnits = ETrue;
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HAL::Get( HALData::EDisplayXTwips, dimInTwips );
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HAL::Get( HALData::EDisplayXPixels, dimInPixels );
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aValue *= (dimInPixels*TwipsInPc)/dimInTwips ;
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}
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else if(remChars == KPx || remChars == KPer)
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{
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numUnits = ETrue;
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}
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}
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else if(aAttrValue == KHeight)
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{
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if(remChars == Kcm)
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{
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numUnits = ETrue;
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HAL::Get( HALData::EDisplayYTwips, dimInTwips );
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HAL::Get( HALData::EDisplayYPixels, dimInPixels );
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aValue *= (dimInPixels*TwipsInCentimeters)/dimInTwips ;
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}
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else if(remChars == Kmm)
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{
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numUnits = ETrue;
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HAL::Get( HALData::EDisplayYTwips, dimInTwips );
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HAL::Get( HALData::EDisplayYPixels, dimInPixels );
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aValue *= (dimInPixels*TwipsInCentimeters/10)/dimInTwips ;
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}
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else if(remChars == Kin)
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{
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numUnits = ETrue;
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HAL::Get( HALData::EDisplayYTwips, dimInTwips );
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HAL::Get( HALData::EDisplayYPixels, dimInPixels );
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aValue *= (dimInPixels*TwipsInInches)/dimInTwips ;
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}
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else if(remChars == KPt)
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{
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numUnits = ETrue;
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HAL::Get( HALData::EDisplayYTwips, dimInTwips );
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HAL::Get( HALData::EDisplayYPixels, dimInPixels );
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aValue *= (dimInPixels*TwipsInPt)/dimInTwips ;
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}
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else if(remChars == KPc)
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{
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numUnits = ETrue;
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HAL::Get( HALData::EDisplayYTwips, dimInTwips );
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HAL::Get( HALData::EDisplayYPixels, dimInPixels );
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aValue *= (dimInPixels*TwipsInPc)/dimInTwips ;
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}
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else if(remChars == KPx || remChars == KPer)
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{
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numUnits = ETrue;
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}
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}
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}
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if(!numUnits)
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while(!(parser.Eos()))
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{
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chr=parser.Get();
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if(!chr.IsDigit())
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{
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aValue=0;
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return result==KErrNotFound;
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}
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parser.Inc();
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}
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if (result != KErrNone)
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{
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aValue= 0;
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}
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parser.SkipSpace();
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return result == KErrNone;
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}
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// --------------------------------------------------------------------------
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// TBool CSvgAttributeVerifier::ValidAttrValue( const TDesC& aValue,
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// ---------------------------------------------------------------------------
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TBool CSvgAttributeVerifier::ValidAttrValue( const TDesC& aValue,
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TReal32& aConvVal,
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TUint8 aDatatype,
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const TDesC& aAttrValue,
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TBool isSvgElement)
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{
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TReal32 lMinValue = (TReal32)(aDatatype==KSVG_LENGTH_TYPE ? 0 : -KMax16BitValue);
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// invalid number string
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if ( !ParseForDecimalValue( aValue, aConvVal, aAttrValue, isSvgElement) )
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{
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aConvVal=0;
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return EFalse;
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}
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// less than minimum value
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else if ( aConvVal > KMax16BitValue )
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{
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aConvVal = KMax16BitValue;
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return EFalse;
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}
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// greater than maximum value
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else if ( aConvVal < lMinValue )
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{
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aConvVal = lMinValue;
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return EFalse;
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}
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// number string is valid and within range
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return ETrue;
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}
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