/*
* 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
}
}