--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/svgtopt/SVG/SVGImpl/src/SVGGElementImpl.cpp Thu Jan 07 16:19:02 2010 +0200
@@ -0,0 +1,476 @@
+/*
+* Copyright (c) 2003 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: SVG Implementation source file
+ *
+*/
+
+
+#if !defined(__E32BASE_H__)
+#include <e32base.h>
+#endif
+#include "SVGGElementImpl.h"
+#include "SVGElementImpl.h"
+#include "SVGDocumentImpl.h"
+#include "SVGSchemaData.h"
+
+#include "GfxAffineTransform.h"
+
+#include "SVGUseElementImpl.h"
+_LIT(DISPLAY, "display");
+_LIT(NONE, "none");
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+CSvgGElementImpl* CSvgGElementImpl::NewL( const TUint8 aElemID,
+ CSvgDocumentImpl* aDoc )
+ {
+ CSvgGElementImpl* self = new ( ELeave ) CSvgGElementImpl( aDoc );
+ CleanupStack::PushL( self );
+ self->ConstructL( aElemID );
+ CleanupStack::Pop();
+
+ return self;
+ }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+CSvgGElementImpl* CSvgGElementImpl::NewLC( const TUint8 aElemID,
+ CSvgDocumentImpl* aDoc )
+ {
+ CSvgGElementImpl* self = new ( ELeave ) CSvgGElementImpl( aDoc );
+ CleanupStack::PushL( self );
+ self->ConstructL( aElemID );
+
+ return self;
+ }
+
+
+
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+CSvgGElementImpl::~CSvgGElementImpl()
+ {
+ if ( iSvgStyleProperties )
+ {
+ iSvgStyleProperties->Close();
+ delete iSvgStyleProperties;
+ iSvgStyleProperties = NULL;
+ }
+
+ }
+
+
+// Private
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+
+void CSvgGElementImpl::ConstructL( const TUint8 aElemID )
+ {
+ CSvgElementImpl::InitializeL( aElemID );
+
+ iSvgStyleProperties = new(ELeave) RPointerArray<CCssValue>(KCSS_MAX_ATTR);
+ User::LeaveIfError( iSvgStyleProperties->Append( NULL ) );
+iSvgStyleProperties->Remove( 0 );
+
+ iSvgTransformable = CSvgTransformableImpl::NewL();
+
+ if (this->ElemID() >= KSvgAllGElemsSubStartIndex &&
+ this->ElemID() <= KSvgAllGElemsEndIndex )
+ {
+ // Set display to "none"
+ // Otherwise it will be rendered
+ SetAttributeL(DISPLAY, NONE);
+ }
+ }
+
+
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+
+CSvgGElementImpl::CSvgGElementImpl( CSvgDocumentImpl* aDoc )
+ {
+ SetOwnerDocument(aDoc);
+ }
+
+
+// *******************************************************
+// From MXmlElement
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+TInt CSvgGElementImpl::SetAttributeL( const TDesC& aName, const TDesC& aValue )
+ {
+ CSvgElementImpl::SetAttributeL(aName,aValue);
+ return KErrNone;
+ }
+
+
+// From MXmlElementOpt
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+TInt CSvgGElementImpl::GetAttributeFloat( const TInt aNameId, TFloatFixPt& aValue )
+ {
+ switch ( aNameId )
+ {
+ case KAtrRefX:
+ {
+ TFloatFixPt xmin( KMAXFLOATFIX ), x; // 0x7fff is the maximum integer in TFixPt
+ CSvgElementImpl*lNewElement = ( CSvgElementImpl* ) FirstChild();
+ while ( lNewElement != NULL )
+ {
+ lNewElement->GetAttributeFloat( KAtrRefX, x );
+ if ( x < xmin )
+ xmin = x;
+ lNewElement = ( CSvgElementImpl * )
+ lNewElement->NextSibling();
+ }
+ aValue = xmin;
+ }
+ break;
+ case KAtrRefY:
+ {
+ TFloatFixPt ymin( KMAXFLOATFIX ), y; // 0x7fff is the maximum integer in TFixPt
+ CSvgElementImpl*lNewElement = ( CSvgElementImpl* ) FirstChild();
+ while ( lNewElement != NULL )
+ {
+ lNewElement->GetAttributeFloat( KAtrRefY, y );
+ if ( y < ymin )
+ ymin = y;
+ lNewElement = ( CSvgElementImpl * )
+ lNewElement->NextSibling();
+ }
+ aValue = ymin;
+ }
+ break;
+ default:
+ return CSvgElementImpl::GetAttributeFloat( aNameId, aValue );
+ }
+ return KErrNone;
+ }
+
+// *******************************************************
+// From CSvgElementImpl
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+TBool CSvgGElementImpl::DrawL( CGfx2dGc* /* aGc */,
+ CSvgElementImpl* /* aElement */ )
+ {
+
+ if ( this->ElemID() >= KSvgAllGElemsStartIndex &&
+ this->ElemID() <= KSvgAllGElemsEndIndex
+ )
+
+
+ {
+ return EFalse;
+ }
+ else
+ {
+ return ETrue;
+ }
+
+ }
+
+
+// *******************************************************
+// Utilities
+// Get group bounding box
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+void CSvgGElementImpl::GetGroupBounding( TGfxRectangle2D& aBbox,
+ CSvgElementImpl* aStartElement )
+ {
+ TFloatFixPt xMin( KMAXFLOATFIX ), yMin( KMAXFLOATFIX ), xMax( KMINFLOATFIX ), yMax( KMINFLOATFIX );
+
+ GetGroupBoundingInternal( xMin, yMin, xMax, yMax, aStartElement );
+ aBbox.iX = xMin;
+ aBbox.iY = yMin;
+ aBbox.iWidth = xMax - xMin;
+ aBbox.iHeight = yMax - yMin;
+ }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+void CSvgGElementImpl::GetGroupBoundingInternal( TFloatFixPt& aXmin,
+ TFloatFixPt& aYmin,
+ TFloatFixPt& aXmax,
+ TFloatFixPt& aYmax,
+ CSvgElementImpl* aStartElement )
+ {
+ TInt position= aStartElement->ElemID();
+ if( position > KSvgNoBoundBoxElemsEndIndex )
+
+ {
+ TFloatFixPt zero ( 0 );
+ TGfxRectangle2D bbox;
+ TInt32 displayValue;
+ aStartElement->GetBBox( bbox );
+
+ TRAP_IGNORE( aStartElement->GetAttributeIntL( KCSS_ATTR_DISPLAY, displayValue ) );
+
+ // Ignore area-less elements and dispay="none" elements
+ if ( (bbox.iWidth > zero || bbox.iHeight > zero) && displayValue != KDisplayEnumNone)
+ {
+ if ( bbox.iX < aXmin )
+ aXmin = bbox.iX;
+ if ( bbox.iY < aYmin )
+ aYmin = bbox.iY;
+ if ( bbox.iX + bbox.iWidth > aXmax )
+ aXmax = bbox.iX + bbox.iWidth;
+ if ( bbox.iY + bbox.iHeight > aYmax )
+ aYmax = bbox.iY + bbox.iHeight;
+ }
+ }
+
+ CSvgElementImpl*element = ( CSvgElementImpl* )
+ aStartElement->FirstChild();
+ while ( element != NULL )
+ {
+ GetGroupBoundingInternal( aXmin, aYmin, aXmax, aYmax, element );
+ element = ( CSvgElementImpl * ) element->NextSibling();
+ }
+ }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+void CSvgGElementImpl::GetGroupBoundingUnscaled( TGfxRectangle2D& aBbox,
+ CSvgElementImpl* aStartElement )
+ {
+ TFloatFixPt xMin( KMAXFLOATFIX ), yMin( KMAXFLOATFIX ), xMax( KMINFLOATFIX ), yMax( KMINFLOATFIX );
+
+ GetGroupBoundingInternalUnscaled( xMin, yMin, xMax, yMax, aStartElement );
+ aBbox.iX = xMin;
+ aBbox.iY = yMin;
+ aBbox.iWidth = xMax - xMin;
+ aBbox.iHeight = yMax - yMin;
+ }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+void CSvgGElementImpl::GetGroupBoundingInternalUnscaled( TFloatFixPt& aXmin,
+ TFloatFixPt& aYmin,
+ TFloatFixPt& aXmax,
+ TFloatFixPt& aYmax,
+ CSvgElementImpl* aStartElement )
+{
+ TInt position= aStartElement->ElemID();
+ if( position > KSvgNoBoundBoxElemsEndIndex )
+
+ {
+ TFloatFixPt zero ( 0 );
+ TGfxRectangle2D bbox;
+ TInt32 displayValue;
+
+ //solving the case where a <g><rect transform="translate(10,10)"></g>
+ //the rect elements transform must be reflected on the G
+ //but we dont want the scaled bbox of the rect with the entire CTM scaling
+
+ if( aStartElement->IsTransformable() )
+ {
+ MSvgTransformList* trList;
+
+ TGfxAffineTransform lElementTransform;
+
+ aStartElement->GetTransform( trList );
+ lElementTransform = trList->Consolidate( aStartElement->IsOverwriteTransforms() );
+
+ TGfxAffineTransform lTempCTM = aStartElement->GetCTM();
+
+ //use only the transform on the child element and not the entire CTM
+ aStartElement->SetCTM( lElementTransform );
+ if (KSvgUseElement == (( CSvgElementImpl* )aStartElement)->ElemID())
+ {
+ ((CSvgUseElementImpl*)aStartElement)->GetBoundingBox( bbox);
+ }
+ else
+ aStartElement->GetBBox( bbox );
+
+ //set the original entire CTM back on to the element
+ aStartElement->SetCTM(lTempCTM);
+
+ }
+
+ TRAP_IGNORE( aStartElement->GetAttributeIntL( KCSS_ATTR_DISPLAY, displayValue ) );
+
+ //TBool iDisplayNoneFlag = aStartElement->IsInherited(KCSS_ATTR_DISPLAY);
+ // if the display attribute is inherited, consider it for bounding box calculation
+ if ( (bbox.iWidth > zero || bbox.iHeight > zero) && ( displayValue != KDisplayEnumNone ) ) // Ignore area-less elements
+ {
+ if ( bbox.iX < aXmin )
+ aXmin = bbox.iX;
+ if ( bbox.iY < aYmin )
+ aYmin = bbox.iY;
+ if ( bbox.iX + bbox.iWidth > aXmax )
+ aXmax = bbox.iX + bbox.iWidth;
+ if ( bbox.iY + bbox.iHeight > aYmax )
+ aYmax = bbox.iY + bbox.iHeight;
+ }
+ }
+ if (KSvgUseElement == (( CSvgElementImpl* )aStartElement)->ElemID())
+ return;
+
+ CSvgElementImpl*element = ( CSvgElementImpl* )
+ aStartElement->FirstChild();
+ TFloatFixPt tempXMin ;
+ TFloatFixPt tempYMin ;
+ TFloatFixPt tempXMax ;
+ TFloatFixPt tempYMax ;
+
+ while ( element != NULL )
+ {
+
+ //Apply group level transformation if the group is not the original element.
+ if( KSvgGElement == element->ElemID() )
+ {
+ TFloatFixPt xMin( KMAXFLOATFIX ), yMin( KMAXFLOATFIX ), xMax( KMINFLOATFIX ), yMax( KMINFLOATFIX );
+
+ tempXMin = KMAXFLOATFIX ;
+ tempYMin = KMAXFLOATFIX ;
+ tempXMax = KMINFLOATFIX ;
+ tempYMax = KMINFLOATFIX ;
+
+ GetGroupBoundingInternalUnscaled( tempXMin, tempYMin, tempXMax, tempYMax, element );
+ if((tempXMax > tempXMin)&&(tempYMax > tempYMin))
+ {
+ TGfxRectangle2D rect(tempXMin, tempYMin, tempXMax - tempXMin, tempYMax - tempYMin);
+
+ MSvgTransformList* trList;
+
+ TGfxAffineTransform lElementTransform;
+
+ element->GetTransform( trList );
+ lElementTransform = trList->Consolidate( element->IsOverwriteTransforms() );
+
+ rect.GetBounds(lElementTransform, rect);
+
+ tempXMin = rect.iX ;
+ tempYMin = rect.iY ;
+ tempXMax = rect.iX + rect.iWidth ;
+ tempYMax = rect.iY + rect.iHeight ;
+
+ if( tempXMin < aXmin )
+ aXmin = tempXMin ;
+ if( tempYMin < aYmin )
+ aYmin = tempYMin ;
+ if( tempXMax > aXmax )
+ aXmax = tempXMax ;
+ if( tempYMax > aYmax )
+ aYmax = tempYMax ;
+ }
+ }
+ else
+ {
+ GetGroupBoundingInternalUnscaled( aXmin, aYmin, aXmax, aYmax, element );
+ }
+
+ element = ( CSvgElementImpl * ) element->NextSibling();
+ }
+
+}
+
+// perform a deep clone of this object
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+MXmlElement* CSvgGElementImpl::CloneL(MXmlElement* aParentElement)
+ {
+ // create new g element
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+ CSvgGElementImpl* newElement = CSvgGElementImpl::NewL( this->ElemID(), ((CSvgDocumentImpl*)iOwnerDocument) );
+
+
+ CleanupStack::PushL(newElement);
+ newElement->iParentNode = aParentElement;
+
+ // copy everything over
+ this->CopyL(newElement);
+ CleanupStack::Pop();
+ return newElement;
+ }
+
+// perform a deep copy of this object
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+void CSvgGElementImpl::CopyL( CSvgGElementImpl* aDestElement )
+ {
+ if(aDestElement)
+ {
+ // copy stuff from superclass
+ this->CSvgElementImpl::CopyL(aDestElement);
+ // copy the reference to idoc (CSvgDocumentImpl)
+ aDestElement->iOwnerDocument = this->iOwnerDocument;
+ }
+ }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+void CSvgGElementImpl::GetBBox( TGfxRectangle2D& aBbox )
+ {
+
+ // if there are not any children then the bbox should be NULL
+ if (!HasChildNodes())
+ {
+ return;
+ }
+
+ CSvgGElementImpl::GetGroupBounding( aBbox, this );
+ }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+void CSvgGElementImpl::GetUnscaledBBox( TGfxRectangle2D& aBbox )
+ {
+
+ // if there are not any children then the bbox should be NULL
+ if (!HasChildNodes())
+ {
+ return;
+ }
+
+ CSvgGElementImpl::GetGroupBoundingUnscaled( aBbox, this );
+ }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+void CSvgGElementImpl::Print( TBool aIsEncodeOn )
+{
+ if (!aIsEncodeOn)
+ {
+ #ifdef _DEBUG
+ RDebug::Printf("<g>");
+ #endif
+ }
+}