svgtopt/SVG/SVGImpl/src/SVGPathElementImpl.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 07 Jan 2010 16:19:02 +0200
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Revision: 200951 Kit: 201001
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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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#if !defined(__E32BASE_H__)
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#include <e32base.h>
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#endif
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#include "SVGPathElementImpl.h"
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#include "GfxGeneralPath.h"
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#include "SVGDocumentImpl.h"
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#include "SVGSchemaData.h"
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#include "SVGPathDataParser.h"
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_LIT( D, "d" );
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// ---------------------------------------------------------------------------
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//
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// ---------------------------------------------------------------------------
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CSvgPathElementImpl* CSvgPathElementImpl::NewL(  const TUint8 aElemID,
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                                                CSvgDocumentImpl* aDoc )
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    {
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    CSvgPathElementImpl*self    = new ( ELeave ) CSvgPathElementImpl( aDoc );
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    CleanupStack::PushL( self );
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    self->ConstructL( aElemID );
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    CleanupStack::Pop();
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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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CSvgPathElementImpl::~CSvgPathElementImpl()
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    {
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    if(iShape)
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		{
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		delete iShape;
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		iShape = NULL;
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        }
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	if(iSvgStyleProperties)
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		{
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		iSvgStyleProperties->Close();
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		delete iSvgStyleProperties;
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		iSvgStyleProperties = NULL;
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		}
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    }
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// *******************************************************
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// From MXmlElement
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// ---------------------------------------------------------------------------
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//
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// ---------------------------------------------------------------------------
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TInt CSvgPathElementImpl::SetAttributeL( const TDesC& aName,
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                                         const TDesC& aValue )
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    {
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	CSvgElementImpl::SetAttributeL(aName,aValue);
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    if ( aName == D )
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        {
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        iReqAttrFlag = 0;
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        TSvgPathDataParser::ParsePathData( aValue, iShape );
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        // verify path starts with move command
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        RArray<TUint32>* typeArray = iShape->PointTypeArray();
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        if ( !typeArray || ( typeArray->Count() > 0 && (*typeArray)[0] != EGfxSegMoveTo ) )
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            {
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            if ( iOwnerDocument )
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                {
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                _LIT( msg1, "Missing 'move to segment' in <path>" );
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                _LIT(msg2, "");
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                ((CSvgDocumentImpl*)iOwnerDocument)->SetError( KErrNotFound, msg1, msg2 );
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                }
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            }
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        }
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	if (( ((CSvgElementImpl*)iParentNode) != NULL && ((CSvgElementImpl*)iParentNode)->ElemID() == KSvgGlyphElement ) && ( aName == D) )
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	    {
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       ((CSvgElementImpl*)iParentNode)->SetAttributeL(aName,aValue);
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	    }
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    return KErrNone;
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    }
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// From MXmlElementOpt
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// ---------------------------------------------------------------------------
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//
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// ---------------------------------------------------------------------------
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TInt CSvgPathElementImpl::GetAttributeFloat( const TInt aNameId,
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                                             TFloatFixPt& aValue )
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    {
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    switch ( aNameId )
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        {
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   116
        case KAtrRefX:
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   117
        aValue = iShape->PointCoordsArray()[0];
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   118
        break;
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   119
        case KAtrRefY:
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   120
        aValue = iShape->PointCoordsArray()[1];
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   121
        break;
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parents:
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   122
        default:
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   123
        return CSvgElementImpl::GetAttributeFloat( aNameId, aValue );
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   124
        }
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   125
    return KErrNone;
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   126
    }
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parents:
diff changeset
   127
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   128
// ---------------------------------------------------------------------------
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   129
//
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   130
// ---------------------------------------------------------------------------
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TInt CSvgPathElementImpl::GetAttributePath( const TInt aNameId,
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                                            CGfxGeneralPath*& aValue )
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   133
    {
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   134
    if ( aNameId == KAtrData )
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   135
        {
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   136
        aValue = iShape;
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   137
        }
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parents:
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   138
    else
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parents:
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   139
        {
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   140
        aValue = NULL;
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parents:
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   141
        return KErrNoAttribute;
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parents:
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   142
        }
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parents:
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   143
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   144
    return KErrNone;
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parents:
diff changeset
   145
    }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   146
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   147
// ---------------------------------------------------------------------------
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   148
//
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   149
// ---------------------------------------------------------------------------
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   150
TInt CSvgPathElementImpl::SetAttributePathL( const TInt aNameId,
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parents:
diff changeset
   151
                                             CGfxGeneralPath* aValue )
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parents:
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   152
    {
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parents:
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   153
    if ( aNameId == KAtrData )
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parents:
diff changeset
   154
        {
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parents:
diff changeset
   155
        // copy aValue into iShape not just reassign pointers - that will cause memory leak
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parents:
diff changeset
   156
        // copy when CGfxGeneralPath implements a copy method
d46562c3d99d Revision: 200951
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parents:
diff changeset
   157
        iShape->SetPointTypeArrayL( aValue->PointTypeArray() );
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   158
        iShape->SetPointCoordsArrayL( aValue->PointCoordsArrayAll() );
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   159
        if( WasTurnedOff() )
d46562c3d99d Revision: 200951
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parents:
diff changeset
   160
			{
d46562c3d99d Revision: 200951
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parents:
diff changeset
   161
			// turn it on. this means all the required attributes Are present and
d46562c3d99d Revision: 200951
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parents:
diff changeset
   162
			// hence we can render it.
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   163
			_LIT(KInline , "inline");
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   164
			CSvgElementImpl::SetPropertyL(KCSS_ATTR_DISPLAY, KInline);
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parents:
diff changeset
   165
			SetTurnOff( EFalse );
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parents:
diff changeset
   166
			}
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   167
        
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parents:
diff changeset
   168
        }
d46562c3d99d Revision: 200951
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parents:
diff changeset
   169
    else
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parents:
diff changeset
   170
        {
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parents:
diff changeset
   171
        return KErrNoAttribute;
d46562c3d99d Revision: 200951
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parents:
diff changeset
   172
        }
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   173
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parents:
diff changeset
   174
    return KErrNone;
d46562c3d99d Revision: 200951
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parents:
diff changeset
   175
    }
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   176
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parents:
diff changeset
   177
// ---------------------------------------------------------------------------
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parents:
diff changeset
   178
//
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parents:
diff changeset
   179
// ---------------------------------------------------------------------------
d46562c3d99d Revision: 200951
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parents:
diff changeset
   180
TInt CSvgPathElementImpl::SetAttributePathRef( const TInt aNameId,
d46562c3d99d Revision: 200951
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parents:
diff changeset
   181
                                              CGfxGeneralPath*&  aValue  )
d46562c3d99d Revision: 200951
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parents:
diff changeset
   182
    {
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parents:
diff changeset
   183
    if ( aNameId == KAtrData )
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parents:
diff changeset
   184
        {
d46562c3d99d Revision: 200951
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parents:
diff changeset
   185
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parents:
diff changeset
   186
	    if(iShape)
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   187
			{
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parents:
diff changeset
   188
			delete iShape;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   189
			iShape= NULL;
d46562c3d99d Revision: 200951
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parents:
diff changeset
   190
			}
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   191
		iShape= aValue;
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
		if (( ((CSvgElementImpl*)iParentNode) != NULL && ((CSvgElementImpl*)iParentNode)->ElemID() == KSvgGlyphElement ) && ( aNameId == KAtrD) )
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   194
		    {
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   195
            ((CSvgElementImpl*)iParentNode)->SetPathAttribute(aNameId,aValue);
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parents:
diff changeset
   196
		    }
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   197
		
d46562c3d99d Revision: 200951
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parents:
diff changeset
   198
        }
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   199
    else
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   200
        {
d46562c3d99d Revision: 200951
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parents:
diff changeset
   201
        return KErrNoAttribute;
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parents:
diff changeset
   202
        }
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   203
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parents:
diff changeset
   204
    return KErrNone;
d46562c3d99d Revision: 200951
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parents:
diff changeset
   205
    }
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   206
d46562c3d99d Revision: 200951
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parents:
diff changeset
   207
// ---------------------------------------------------------------------------
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parents:
diff changeset
   208
//
d46562c3d99d Revision: 200951
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parents:
diff changeset
   209
// ---------------------------------------------------------------------------
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   210
TBool CSvgPathElementImpl::DrawL( CGfx2dGc* aGc, CSvgElementImpl* aElement )
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   211
    {
d46562c3d99d Revision: 200951
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parents:
diff changeset
   212
    this->DrawShapeL( aGc, *iShape, aElement );
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parents:
diff changeset
   213
    return ETrue;
d46562c3d99d Revision: 200951
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parents:
diff changeset
   214
    }
d46562c3d99d Revision: 200951
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parents:
diff changeset
   215
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parents:
diff changeset
   216
// ---------------------------------------------------------------------------
d46562c3d99d Revision: 200951
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parents:
diff changeset
   217
//
d46562c3d99d Revision: 200951
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parents:
diff changeset
   218
// ---------------------------------------------------------------------------
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   219
void CSvgPathElementImpl::ConstructL(  const TUint8 aElemID )
d46562c3d99d Revision: 200951
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parents:
diff changeset
   220
    {
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parents:
diff changeset
   221
    CSvgElementImpl::InitializeL( aElemID );
d46562c3d99d Revision: 200951
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parents:
diff changeset
   222
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parents:
diff changeset
   223
    iSvgStyleProperties = new(ELeave) RPointerArray<CCssValue>(KCSS_MAX_ATTR);
d46562c3d99d Revision: 200951
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parents:
diff changeset
   224
    User::LeaveIfError( iSvgStyleProperties->Append( NULL ) );
d46562c3d99d Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   225
    iSvgStyleProperties->Remove( 0 );
d46562c3d99d Revision: 200951
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parents:
diff changeset
   226
    iSvgTransformable = CSvgTransformableImpl::NewL();
d46562c3d99d Revision: 200951
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parents:
diff changeset
   227
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parents:
diff changeset
   228
    iShape = CGfxGeneralPath::NewL();
d46562c3d99d Revision: 200951
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parents:
diff changeset
   229
	iReqAttrFlag=KSVG_PATH_ELEMFLAG;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   230
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    }
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// ---------------------------------------------------------------------------
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//
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// ---------------------------------------------------------------------------
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CSvgPathElementImpl::CSvgPathElementImpl( CSvgDocumentImpl* aDoc )
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    {
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	SetOwnerDocument(aDoc);
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    }
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// ---------------------------------------------------------------------------
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//
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// ---------------------------------------------------------------------------
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void CSvgPathElementImpl::GetBBox( TGfxRectangle2D& aBbox )
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    {
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    if (!iShape || iShape->PointTypeArray()->Count() == 0)
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    {
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    	// The D attribute has not been set yet
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    	return;
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    }
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    iShape->GetBounds( GetCTM(), aBbox );
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    }
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// ---------------------------------------------------------------------------
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//
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// ---------------------------------------------------------------------------
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void CSvgPathElementImpl::GetUnscaledBBox( TGfxRectangle2D& aBbox )
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    {
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    	if (!iShape || iShape->PointTypeArray()->Count() == 0)
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    	{
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    	// The D attribute has not been set yet
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    	return;
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    	}
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    TGfxAffineTransform identityTx;
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    iShape->GetBounds( identityTx, aBbox );
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    }
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// ---------------------------------------------------------------------------
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// perform a deep clone of this object
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// ---------------------------------------------------------------------------
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MXmlElement* CSvgPathElementImpl::CloneL(MXmlElement* aParentElement)
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    {
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    // create new polyline
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	CSvgPathElementImpl* newElement = CSvgPathElementImpl::NewL( this->ElemID(), ((CSvgDocumentImpl*)iOwnerDocument) );
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	CleanupStack::PushL(newElement);
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	newElement->iParentNode = aParentElement;
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    // copy everything over
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    this->CopyL(newElement);
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	CleanupStack::Pop();
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    return newElement;
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    }
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// ---------------------------------------------------------------------------
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// perform a deep copy of this object
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// ---------------------------------------------------------------------------
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void CSvgPathElementImpl::CopyL( CSvgPathElementImpl* aDestElement )
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    {
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    if(aDestElement)
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	    {
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	    // copy stuff from superclass
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	    this->CSvgElementImpl::CopyL(aDestElement);
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	    // copy iShape
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        RArray<TUint32>* lTypes = this->iShape->PointTypeArray();
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        RArray<TFloatFixPt>* lCoords = this->iShape->PointCoordsArrayAll();
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        aDestElement->iShape->SetPointTypeArrayL(lTypes);
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        aDestElement->iShape->SetPointCoordsArrayL(lCoords);
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	    // copy the reference to idoc (CSvgDocumentImpl)
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	    aDestElement->iOwnerDocument = this->iOwnerDocument;
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	    }
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    }
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// ---------------------------------------------------------------------------
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//
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// ---------------------------------------------------------------------------
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CGfxGeneralPath* CSvgPathElementImpl::GetPathAttribute(TInt aAttributeId)
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{
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	if(aAttributeId == KAtrD)
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		{
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		return iShape;
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		}
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	return NULL;
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}
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// ---------------------------------------------------------------------------
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//
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// ---------------------------------------------------------------------------
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void CSvgPathElementImpl::SetPathAttribute(TInt aAttributeId, CGfxGeneralPath* aPathHandle)
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{
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	if(aAttributeId == KAtrD)
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		{
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		if(iShape != aPathHandle)
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			{
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			delete iShape;
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			iShape = aPathHandle;
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			}
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		}
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}
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   334
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void CSvgPathElementImpl::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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	RArray<TUint32>* lTypes = this->iShape->PointTypeArray();
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	RArray<TFloatFixPt>* lCoords = this->iShape->PointCoordsArrayAll();
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   342
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	if (lTypes->Count() != lCoords->Count())
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	{
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		RDebug::Printf("Invalid path points and types didnt match", this);
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		return;
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	}
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   348
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	RDebug::Printf("<path d=\"", this);
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   350
	
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	TInt lTypesCnt = lTypes->Count();
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	for (TInt i=0; i < lTypesCnt; i++)
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	{
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		RDebug::Printf("%c ", lTypes->operator[]( i ));
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		RDebug::Printf("%d ", (int)(lCoords->operator[]( i )));
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	}
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   357
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   358
	RDebug::Printf(" z\">", this);
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   359
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	#endif
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	}
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   362
}