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/*
Copyright (C) 2001-2003 KSVG Team
This file is part of the KDE project
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <kdebug.h>
#include "SVGRectImpl.h"
#include "SVGShapeImpl.h"
#include "SVGContainerImpl.h"
#include "SVGMatrixImpl.h"
#include "SVGElementImpl.h"
#include "SVGLocatableImpl.h"
#include "SVGSVGElementImpl.h"
#include "SVGDocumentImpl.h"
using namespace KSVG;
#include "SVGLocatableImpl.lut.h"
#include "ksvg_scriptinterpreter.h"
#include "ksvg_bridge.h"
SVGLocatableImpl::SVGLocatableImpl()
{
m_nearestViewportElement = 0;
m_farthestViewportElement = 0;
m_cachedScreenCTM = SVGSVGElementImpl::createSVGMatrix();
m_cachedScreenCTMIsValid = false;
}
SVGLocatableImpl::~SVGLocatableImpl()
{
if(m_nearestViewportElement)
m_nearestViewportElement->deref();
if(m_farthestViewportElement)
m_farthestViewportElement->deref();
if(m_cachedScreenCTM)
m_cachedScreenCTM->deref();
}
SVGRectImpl *SVGLocatableImpl::getBBox()
{
SVGRectImpl *ret = SVGSVGElementImpl::createSVGRect();
return ret;
}
SVGMatrixImpl *SVGLocatableImpl::getCTM()
{
SVGMatrixImpl *ret = SVGSVGElementImpl::createSVGMatrix();
return ret;
}
SVGMatrixImpl *SVGLocatableImpl::getScreenCTM()
{
SVGMatrixImpl *ret = SVGSVGElementImpl::createSVGMatrix();
ret->copy(m_cachedScreenCTM);
return ret;
}
SVGMatrixImpl *SVGLocatableImpl::getTransformToElement(SVGElementImpl *)
{
SVGMatrixImpl *ret = SVGSVGElementImpl::createSVGMatrix();
return ret;
}
void SVGLocatableImpl::updateCachedScreenCTM(const SVGMatrixImpl *parentScreenCTM)
{
m_cachedScreenCTM->copy(parentScreenCTM);
const SVGMatrixImpl *local = localMatrix();
if(local)
m_cachedScreenCTM->multiply(local);
m_cachedScreenCTMIsValid = true;
// Notify the element
onScreenCTMUpdated();
SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(this);
if(shape)
{
// TODO: Update due to matrix animations
//if(shape->item())
// shape->item()->update(updateReason);
SVGElementImpl *element = dynamic_cast<SVGElementImpl *>(this);
DOM::Node node = element->firstChild();
for(; !node.isNull(); node = node.nextSibling())
{
SVGElementImpl *child = element->ownerDoc()->getElementFromHandle(node.handle());
SVGLocatableImpl *locatable = dynamic_cast<SVGLocatableImpl *>(child);
if(child && locatable)
locatable->updateCachedScreenCTM(m_cachedScreenCTM);
}
}
}
void SVGLocatableImpl::checkCachedScreenCTM(const SVGMatrixImpl *parentScreenCTM)
{
if(m_cachedScreenCTMIsValid)
{
SVGElementImpl *element = dynamic_cast<SVGElementImpl *>(this);
SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(this);
if(shape)
{
DOM::Node node = element->firstChild();
for(; !node.isNull(); node = node.nextSibling())
{
SVGElementImpl *child = element->ownerDoc()->getElementFromHandle(node.handle());
SVGLocatableImpl *locatable = dynamic_cast<SVGLocatableImpl *>(child);
if(child && locatable)
locatable->checkCachedScreenCTM(m_cachedScreenCTM);
}
}
}
else
updateCachedScreenCTM(parentScreenCTM);
}
// Ecma stuff
/*
@namespace KSVG
@begin SVGLocatableImpl::s_hashTable 3
nearestViewportElement SVGLocatableImpl::NearestViewportElement DontDelete
farthestViewportElement SVGLocatableImpl::FarthestViewportElement DontDelete
@end
@namespace KSVG
@begin SVGLocatableImplProto::s_hashTable 5
getBBox SVGLocatableImpl::GetBBox DontDelete|Function 0
getCTM SVGLocatableImpl::GetCTM DontDelete|Function 0
getScreenCTM SVGLocatableImpl::GetScreenCTM DontDelete|Function 0
getTransformToElement SVGLocatableImpl::GetTransformToElement DontDelete|Function 1
@end
*/
KSVG_IMPLEMENT_PROTOTYPE("SVGLocatable", SVGLocatableImplProto, SVGLocatableImplProtoFunc)
Value SVGLocatableImpl::getValueProperty(ExecState *exec, int token) const
{
switch(token)
{
case NearestViewportElement:
return nearestViewportElement() ? nearestViewportElement()->cache(exec) : Undefined();
case FarthestViewportElement:
return farthestViewportElement() ? farthestViewportElement()->cache(exec) : Undefined();
default:
kdWarning() << "Unhandled token in " << k_funcinfo << " : " << token << endl;
return Undefined();
}
}
Value SVGLocatableImplProtoFunc::call(ExecState *exec, Object &thisObj, const List &args)
{
KSVG_CHECK_THIS(SVGLocatableImpl)
switch(id)
{
case SVGLocatableImpl::GetBBox:
{
SVGContainerImpl *container = dynamic_cast<SVGContainerImpl *>(obj);
if(container)
return container->getBBox()->cache(exec);
else
{
SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(obj);
if(shape)
return shape->getBBox()->cache(exec);
else
return obj->getBBox()->cache(exec);
}
}
case SVGLocatableImpl::GetCTM:
return obj->getCTM()->cache(exec);
case SVGLocatableImpl::GetScreenCTM:
return obj->getScreenCTM()->cache(exec);
case SVGLocatableImpl::GetTransformToElement:
return obj->getTransformToElement(static_cast<KSVGBridge<SVGElementImpl> *>(args[0].imp())->impl())->cache(exec);
default:
kdWarning() << "Unhandled function id in " << k_funcinfo << " : " << id << endl;
break;
}
return Undefined();
}
// vim:ts=4:noet
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