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408 lines
10 KiB
408 lines
10 KiB
/*
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Copyright (C) 2001-2003 KSVG Team
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This file is part of the KDE project
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include <kdebug.h>
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#include <tqstring.h>
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#include "KSVGLoader.h"
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#include "KSVGCanvas.h"
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#include "SVGRectImpl.h"
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#include "SVGEventImpl.h"
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#include "SVGHelperImpl.h"
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#include "SVGMatrixImpl.h"
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#include "SVGDocumentImpl.h"
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#include "SVGTransformImpl.h"
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#include "SVGSVGElementImpl.h"
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#include "SVGUseElementImpl.h"
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#include "SVGSymbolElementImpl.h"
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#include "SVGTransformListImpl.h"
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#include "SVGAnimatedStringImpl.h"
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#include "SVGAnimatedLengthImpl.h"
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#include "SVGElementInstanceImpl.h"
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#include "SVGAnimatedTransformListImpl.h"
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using namespace KSVG;
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#include "SVGUseElementImpl.lut.h"
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#include "ksvg_bridge.h"
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#include "ksvg_ecma.h"
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SVGUseElementImpl::SVGUseElementImpl(DOM::ElementImpl *impl) : SVGShapeImpl(impl), SVGURIReferenceImpl(), SVGTestsImpl(), SVGLangSpaceImpl(), SVGExternalResourcesRequiredImpl(), SVGStylableImpl(this), SVGTransformableImpl()
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{
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KSVG_EMPTY_FLAGS
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m_x = new SVGAnimatedLengthImpl();
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m_x->ref();
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m_y = new SVGAnimatedLengthImpl();
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m_y->ref();
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m_width = new SVGAnimatedLengthImpl();
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m_width->ref();
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m_height = new SVGAnimatedLengthImpl();
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m_height->ref();
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m_instanceRoot = 0;
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}
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SVGUseElementImpl::~SVGUseElementImpl()
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{
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if(m_x)
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m_x->deref();
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if(m_y)
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m_y->deref();
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if(m_width)
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m_width->deref();
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if(m_height)
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m_height->deref();
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if(m_instanceRoot)
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m_instanceRoot->deref();
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}
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SVGAnimatedLengthImpl *SVGUseElementImpl::x() const
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{
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return m_x;
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}
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SVGAnimatedLengthImpl *SVGUseElementImpl::y() const
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{
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return m_y;
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}
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SVGAnimatedLengthImpl *SVGUseElementImpl::width() const
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{
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return m_width;
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}
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SVGAnimatedLengthImpl *SVGUseElementImpl::height() const
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{
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return m_height;
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}
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// Ecma stuff
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/*
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@namespace KSVG
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@begin SVGUseElementImpl::s_hashTable 11
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x SVGUseElementImpl::X DontDelete|ReadOnly
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y SVGUseElementImpl::Y DontDelete|ReadOnly
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width SVGUseElementImpl::Width DontDelete|ReadOnly
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height SVGUseElementImpl::Height DontDelete|ReadOnly
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href SVGUseElementImpl::Href DontDelete|ReadOnly
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instanceRoot SVGUseElementImpl::InstanceRoot DontDelete|ReadOnly
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animatedInstanceRoot SVGUseElementImpl::AnimatedInstanceRoot DontDelete|ReadOnly
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@end
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*/
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Value SVGUseElementImpl::getValueProperty(ExecState *exec, int token) const
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{
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KSVG_CHECK_ATTRIBUTE
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switch(token)
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{
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case X:
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if(!attributeMode)
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return m_x->cache(exec);
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else
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return Number(m_x->baseVal()->value());
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case Y:
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if(!attributeMode)
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return m_y->cache(exec);
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else
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return Number(m_y->baseVal()->value());
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case Width:
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if(!attributeMode)
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return m_width->cache(exec);
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else
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return Number(m_width->baseVal()->value());
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case Height:
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if(!attributeMode)
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return m_height->cache(exec);
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else
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return Number(m_height->baseVal()->value());
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default:
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kdWarning() << "Unhandled token in " << k_funcinfo << " : " << token << endl;
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return Undefined();
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}
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}
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void SVGUseElementImpl::putValueProperty(ExecState *exec, int token, const Value &value, int attr)
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{
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// This class has just ReadOnly properties, only with the Internal flag set
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// it's allowed to modify those.
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if(!(attr & KJS::Internal))
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return;
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switch(token)
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{
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case X:
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x()->baseVal()->setValue(value.toNumber(exec));
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break;
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case Y:
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y()->baseVal()->setValue(value.toNumber(exec));
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break;
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case Width:
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width()->baseVal()->setValue(value.toNumber(exec));
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break;
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case Height:
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height()->baseVal()->setValue(value.toNumber(exec));
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break;
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case Href:
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{
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TQString url = value.toString(exec).qstring();
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href()->setBaseVal(SVGURIReferenceImpl::getTarget(url));
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break;
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}
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default:
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kdWarning() << "Unhandled token in " << k_funcinfo << " : " << token << endl;
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}
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}
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SVGRectImpl *SVGUseElementImpl::getBBox()
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{
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if(m_instanceRoot)
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{
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SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(m_instanceRoot->correspondingElement());
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if(KSVG_TOKEN_NOT_PARSED(Width) && KSVG_TOKEN_NOT_PARSED(Height) && shape)
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return shape->getBBox();
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}
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SVGRectImpl *ret = new SVGRectImpl();
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ret->ref();
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ret->setX(m_x->baseVal()->value());
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ret->setY(m_y->baseVal()->value());
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ret->setWidth(m_width->baseVal()->value());
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ret->setHeight(m_height->baseVal()->value());
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return ret;
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}
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SVGElementInstanceImpl *SVGUseElementImpl::instanceRoot() const
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{
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return m_instanceRoot;
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}
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SVGElementInstanceImpl *SVGUseElementImpl::animatedInstanceRoot() const
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{
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return m_animatedInstanceRoot;
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}
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void SVGUseElementImpl::createItem(KSVGCanvas *c)
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{
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if(!m_instanceRoot)
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{
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// ownerSVGElement()->getElementById() is wrong here.
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// It could reference elements from other documents when using getURL (Niko)
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TQString filename, id;
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DOM::DOMString url = getAttribute("href");
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if(!SVGURIReferenceImpl::parseURIReference(url.string(), filename, id))
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return;
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SVGElementImpl *orig;
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if(!filename.isEmpty())
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{
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KURL fragmentUrl(ownerDoc()->baseUrl(), url.string());
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id = fragmentUrl.ref();
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fragmentUrl.setRef(TQString());
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orig = KSVGLoader::getSVGFragment(fragmentUrl, ownerDoc(), id);
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}
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else
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{
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orig = ownerDoc()->getElementByIdRecursive(ownerSVGElement(), href()->baseVal());
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if(orig == 0)
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{
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// The document will try to create this item again once the parsing has finished.
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ownerDoc()->addForwardReferencingUseElement(this);
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}
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}
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if(orig == 0)
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return;
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setReferencedElement(orig);
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// Create a parent, a <g>
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SVGElementImpl *parent = 0;
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DOM::Element impl = static_cast<DOM::Document *>(ownerDoc())->createElement("g");
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parent = SVGDocumentImpl::createElement("g", impl, ownerDoc());
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SVGElementImpl *clone = orig->cloneNode(true);
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// Apply the use-correction
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TQString trans;
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trans += " translate(";
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trans += TQString::number(x()->baseVal()->value());
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trans += " ";
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trans += TQString::number(y()->baseVal()->value());
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trans += ")";
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// Apply the transform attribute and render the element
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parent->setAttributeInternal("transform", trans);
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parent->setAttribute("transform", trans);
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// Apply width/height if symbol
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if(dynamic_cast<SVGSymbolElementImpl *>(clone))
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{
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DOM::Element impl = static_cast<DOM::Document *>(ownerDoc())->createElement("svg");
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SVGElementImpl *symbolSvg = SVGDocumentImpl::createElement("svg", impl, ownerDoc());
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SVGHelperImpl::copyAttributes(orig, symbolSvg);
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symbolSvg->setAttribute("width", getAttribute("width"));
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symbolSvg->setAttributeInternal("width", getAttribute("width"));
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symbolSvg->setAttribute("height", getAttribute("height"));
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symbolSvg->setAttributeInternal("height", getAttribute("height"));
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DOM::Node node = clone->firstChild();
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for(; !node.isNull(); node = clone->firstChild())
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symbolSvg->appendChild(node);
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clone = symbolSvg;
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}
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else if(dynamic_cast<SVGSVGElementImpl *>(clone))
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{
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if(!getAttribute("width").isEmpty())
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{
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clone->setAttribute("width", getAttribute("width"));
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clone->setAttributeInternal("width", getAttribute("width"));
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}
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if(!getAttribute("height").isEmpty())
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{
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clone->setAttribute("height", getAttribute("height"));
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clone->setAttributeInternal("height", getAttribute("height"));
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}
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}
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appendChild(*parent);
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parent->appendChild(*clone);
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setupSubtree(parent, ownerSVGElement(), viewportElement());
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m_instanceRoot->setCorrespondingElement(clone);
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dynamic_cast<SVGLocatableImpl *>(parent)->updateCachedScreenCTM(screenCTM());
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// Redirect local ecma event handlers to the correspondingElement
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TQPtrListIterator<SVGRegisteredEventListener> it(eventListeners());
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SVGRegisteredEventListener *eventListener;
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while((eventListener = it.current()) != 0)
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{
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++it;
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clone->setEventListener(eventListener->id, eventListener->listener);
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}
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}
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if(m_instanceRoot)
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{
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SVGElementImpl *element = m_instanceRoot->correspondingElement();
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element->createItem(c);
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}
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}
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void SVGUseElementImpl::removeItem(KSVGCanvas *c)
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{
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if(m_instanceRoot)
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{
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SVGElementImpl *element = m_instanceRoot->correspondingElement();
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element->removeItem(c);
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}
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}
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void SVGUseElementImpl::setupSubtree(SVGElementImpl *element, SVGSVGElementImpl *ownerSVG, SVGElementImpl *viewport)
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{
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element->setOwnerSVGElement(ownerSVG);
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element->setViewportElement(viewport);
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element->setAttributes();
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SVGSVGElementImpl *thisSVG = dynamic_cast<SVGSVGElementImpl *>(element);
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if(thisSVG != 0)
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{
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ownerSVG = thisSVG;
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viewport = element;
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}
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DOM::Node child = element->firstChild();
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for(; !child.isNull(); child = child.nextSibling())
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{
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SVGElementImpl *childElement = ownerDoc()->getElementFromHandle(child.handle());
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if(childElement != 0)
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setupSubtree(childElement, ownerSVG, viewport);
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}
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}
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void SVGUseElementImpl::setReferencedElement(SVGElementImpl *referenced)
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{
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if(!referenced)
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return;
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if(!m_instanceRoot)
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{
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m_instanceRoot = new SVGElementInstanceImpl();
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m_instanceRoot->ref();
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}
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m_instanceRoot->setCorrespondingElement(referenced);
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}
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void SVGUseElementImpl::update(CanvasItemUpdate reason, int param1, int param2)
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{
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if(m_instanceRoot)
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{
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SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(m_instanceRoot->correspondingElement());
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if(shape)
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shape->update(reason, param1, param2);
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}
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}
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void SVGUseElementImpl::invalidate(KSVGCanvas *c, bool recalc)
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{
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if(m_instanceRoot)
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{
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SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(m_instanceRoot->correspondingElement());
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if(shape)
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shape->invalidate(c, recalc);
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}
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}
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void SVGUseElementImpl::setReferenced(bool referenced)
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{
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if(m_instanceRoot)
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{
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SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(m_instanceRoot->correspondingElement());
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if(shape)
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shape->setReferenced(referenced);
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}
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}
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void SVGUseElementImpl::draw()
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{
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if(m_instanceRoot)
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{
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SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(m_instanceRoot->correspondingElement());
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if(shape)
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shape->draw();
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}
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}
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