svgtopt/SVG/SVGImpl/src/SVGLinearGradientElementImpl.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 07 Jan 2010 16:19:02 +0200
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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 source file
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 *
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*/
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#include "SVGLinearGradientElementImpl.h"
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#include "SVGDocumentImpl.h"
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#include "SVGSchemaData.h"
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#include "SvgStopElementImpl.h"
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#include "SVGIntCssValueImpl.h"
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#include "GfxAffineTransform.h"
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_LIT(X1,"x1");
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_LIT(X2,"x2");
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_LIT(Y1,"y1");
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_LIT(Y2,"y2");
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// ---------------------------------------------------------------------------
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//
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// ---------------------------------------------------------------------------
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CSvgLinearGradientElementImpl* CSvgLinearGradientElementImpl::NewL(const TUint8 aElemID, CSvgDocumentImpl* aDoc )
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	{
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    CSvgLinearGradientElementImpl *self = new (ELeave) CSvgLinearGradientElementImpl(aDoc);
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    CleanupStack::PushL(self);
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    self->ConstructL(aElemID);
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    CleanupStack::Pop(self);
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    return self;
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	}
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// ---------------------------------------------------------------------------
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//
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// ---------------------------------------------------------------------------
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void CSvgLinearGradientElementImpl::ConstructL(const TUint8 aElemID)
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	{
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    CSvgGradientElementImpl::ConstructL(aElemID);
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	}
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// ---------------------------------------------------------------------------
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//
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// ---------------------------------------------------------------------------
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CSvgLinearGradientElementImpl::CSvgLinearGradientElementImpl( CSvgDocumentImpl* aDoc ):
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	CSvgGradientElementImpl(aDoc)
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	{
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	iGradientPaint = &iGfxLinearPaint;
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	}
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// ---------------------------------------------------------------------------
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//Dt:17-Feb-2009 modified the function to support  the % values for X1,Y1,X2,Y2
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//TSW ISSUE ID: ANAE-7NZ8B8
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// ---------------------------------------------------------------------------
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TInt CSvgLinearGradientElementImpl::SetAttributeL(const TDesC &aName, const TDesC &aValue)
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	{
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	TFloatFixPt KZero( KFloatFixZero );
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	TFloatFixPt KOne( KFloatFixOne );
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	TFloatFixPt val;
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	if ( aName == X1 || aName == X2 || aName == Y1 || aName == Y2 )
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		{
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		if ( IsValidValue(aValue) )
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			{
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			val = TFloatFixPt::ConvertString(aValue); 
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			if ( aValue.Locate('%') != KErrNotFound )
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				{
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				val = val / TFloatFixPt(100);
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				}
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			}
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		else
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			{
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			if( aName == X2 )
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				{
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				val = KOne;
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				}
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			else 
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				{
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				val = KZero;
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				}
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			}
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		if( aName==X1 )
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			{
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			iGfxLinearPaint.iX1 = val;
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			}
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		else if( aName==Y1 )   
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			{
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			iGfxLinearPaint.iY1 = val;
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			}
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		else if( aName==X2 )
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			{
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			iGfxLinearPaint.iX2 = val;
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			}
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		else
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			{
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			iGfxLinearPaint.iY2 = val;
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			}
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		}
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	else 
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		{
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		CSvgGradientElementImpl::SetAttributeL( aName, aValue );
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		}
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parents:
diff changeset
   114
    return 0;
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parents:
diff changeset
   115
	}
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parents:
diff changeset
   116
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parents:
diff changeset
   117
// ---------------------------------------------------------------------------
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parents:
diff changeset
   118
//
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parents:
diff changeset
   119
// ---------------------------------------------------------------------------
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parents:
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   120
MGfxPaint *CSvgLinearGradientElementImpl::PaintAttribute()
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parents:
diff changeset
   121
	{
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parents:
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   122
	TInt i=0;
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parents:
diff changeset
   123
	TFloatFixPt lOffset;
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parents:
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   124
	TUint32 lStopColor;
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parents:
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   125
	TFloatFixPt	lStopOpacity;
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parents:
diff changeset
   126
	if( iStopElementData )
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parents:
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   127
		{
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   128
		iStopElementData->Reset();
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parents:
diff changeset
   129
		}
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parents:
diff changeset
   130
	
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parents:
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   131
	TInt svgStopEleArrayCnt = iSvgStopElementArray->Count();
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parents:
diff changeset
   132
    for(i=0;i<svgStopEleArrayCnt ;i++)
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parents:
diff changeset
   133
		{
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   134
		CSvgStopElementImpl* temp = (*iSvgStopElementArray)[i];
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parents:
diff changeset
   135
		
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parents:
diff changeset
   136
		// Check if the element has valid offset value. If the offset had invalid value
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parents:
diff changeset
   137
		// it will be made zero but this function will return FALSE.
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   138
		if( temp->IsValidElement() )
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   139
		{
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parents:
diff changeset
   140
		    temp->GetOffset(lOffset);
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   141
            temp->GetStopColor(lStopColor);
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   142
	    	temp->GetStopOpacity (lStopOpacity);
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   143
	    	TSvgStopData la ;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   144
	    	la.iOffset = lOffset;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   145
	    	la.iStopColor = lStopColor;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   146
	    	la.iStopOpacity = lStopOpacity;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   147
	    	TInt error = iStopElementData->Append(la);
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   148
	    	if(error != KErrNone)
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   149
		 	{
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   150
			// not enough memory
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   151
			break;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   152
			}	
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   153
		}
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   154
        
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   155
		}
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   156
	iGfxLinearPaint.iStopData = iStopElementData;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   157
    const TGfxAffineTransform& tempTransform = GetCTM();
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   158
	iGradientPaint->iGradientTransform.matrix[0][0] = tempTransform.iM00.iValue;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   159
    iGradientPaint->iGradientTransform.matrix[0][1] = tempTransform.iM01.iValue;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   160
    iGradientPaint->iGradientTransform.matrix[0][2] = tempTransform.iM02.iValue;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   161
	iGradientPaint->iGradientTransform.matrix[1][0] = tempTransform.iM10.iValue;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   162
	iGradientPaint->iGradientTransform.matrix[1][1] = tempTransform.iM11.iValue;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   163
	iGradientPaint->iGradientTransform.matrix[1][2] = tempTransform.iM12.iValue;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   164
    return &iGfxLinearPaint;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   165
	}
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   166
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   167
// ---------------------------------------------------------------------------
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   168
//
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   169
// ---------------------------------------------------------------------------
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   170
TInt CSvgLinearGradientElementImpl::GetAttributeFloat( const TInt aNameId, TFloatFixPt& aValue )
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   171
	{
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   172
	 switch ( aNameId )
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   173
        {
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   174
        case KAtrX1:
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   175
			 aValue = iGfxLinearPaint.iX1 ;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   176
			 break;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   177
        case KAtrY1:
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   178
			 aValue = iGfxLinearPaint.iY1 ;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   179
			break;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   180
        case KAtrX2 :
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   181
			 aValue = iGfxLinearPaint.iX2 ;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   182
			break;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   183
        case KAtrY2 :
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   184
			 aValue = iGfxLinearPaint.iY2 ;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   185
			break;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   186
        default:
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   187
			return CSvgElementImpl::GetAttributeFloat( aNameId, aValue );
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   188
        }
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   189
	return 0;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   190
	}
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   191
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   192
// ---------------------------------------------------------------------------
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   193
//
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   194
// ---------------------------------------------------------------------------
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   195
TInt CSvgLinearGradientElementImpl::SetAttributeFloatL( const TInt aNameId, const TFloatFixPt aValue )
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   196
	{
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   197
    switch ( aNameId )
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   198
        {
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   199
        case KAtrX1:
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   200
			iGfxLinearPaint.iX1 = aValue;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   201
			break;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   202
        case KAtrY1:
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   203
			iGfxLinearPaint.iY1 = aValue;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   204
			break;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   205
        case KAtrX2 :
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   206
			iGfxLinearPaint.iX2 = aValue;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   207
			break;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   208
        case KAtrY2 :
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   209
			iGfxLinearPaint.iY2 = aValue;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   210
			break;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   211
        default:
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   212
			return CSvgElementImpl::SetAttributeFloatL( aNameId, aValue );
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   213
        }
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   214
	return 0;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   215
	}
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   216
TInt CSvgLinearGradientElementImpl::SetAttributeIntL( const TInt aNameId,
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   217
                                        const TInt32 aValue )
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   218
{
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   219
	CSvgGradientElementImpl::SetAttributeIntL(  aNameId,
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   220
												 aValue );
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   221
	return 0;
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   222
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   223
}
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   224
TInt CSvgLinearGradientElementImpl::GetAttributeIntL( const TInt aNameId, TInt32& aValue )
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   225
{
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	CSvgGradientElementImpl::GetAttributeIntL(aNameId,  aValue );
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	return 0;
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}
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// ---------------------------------------------------------------------------
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//
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// ---------------------------------------------------------------------------
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CSvgLinearGradientElementImpl::~CSvgLinearGradientElementImpl()
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	{
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	}
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void CSvgLinearGradientElementImpl::Print( TBool aIsEncodeOn )
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{
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	if (!aIsEncodeOn)
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	{
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		#ifdef _DEBUG
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		RDebug::Printf("<linearGradient xlink:href=\"hmm\" spreadMethod=\"hmm\" gradientUnits=\"hmm\" gradientTransform=\"hmm\" x1=\"%d\" y1=\"%d\" x2=\"%d\" y2=\"%d\"/>",
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		/*Href(),*/ (int)iGfxLinearPaint.iX1, (int)iGfxLinearPaint.iY1, (int)iGfxLinearPaint.iX2, (int)iGfxLinearPaint.iY2);
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		#endif
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	}
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}
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TBool CSvgLinearGradientElementImpl::IsValidValue(const TDesC& aValue)
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{
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    TBool lValidValue = ETrue;
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    // aValue can only contain these characters "-+.%0123456789", If it contains any thing
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    // other than this it should be treated as 0.
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    _LIT(KValidChars,"-+.%0123456789");
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    TBufC<14> lValidChars(KValidChars);
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    TInt llength = aValue.Length();
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    for( int charpos = 0 ; charpos < llength; charpos++ )
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    {
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        if( lValidChars.Locate(aValue[charpos]) == KErrNotFound )
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        {
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            lValidValue = EFalse;
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            break;
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        }
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    }
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    return lValidValue;
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}