Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 409 insertions, 0 deletions

diff --git a/ksvg/impl/SVGUseElementImpl.cc b/ksvg/impl/SVGUseElementImpl.cc
new file mode 100644
index 00000000..3bd38a42
--- /dev/null
+++ b/ksvg/impl/SVGUseElementImpl.cc
@@ -0,0 +1,409 @@
+/*
+    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 <qstring.h>
+
+#include "KSVGLoader.h"
+#include "KSVGCanvas.h"
+
+#include "SVGRectImpl.h"
+#include "SVGEventImpl.h"
+#include "SVGHelperImpl.h"
+#include "SVGMatrixImpl.h"
+#include "SVGDocumentImpl.h"
+#include "SVGTransformImpl.h"
+#include "SVGSVGElementImpl.h"
+#include "SVGUseElementImpl.h"
+#include "SVGSymbolElementImpl.h"
+#include "SVGTransformListImpl.h"
+#include "SVGAnimatedStringImpl.h"
+#include "SVGAnimatedLengthImpl.h"
+#include "SVGElementInstanceImpl.h"
+#include "SVGAnimatedTransformListImpl.h"
+
+using namespace KSVG;
+
+#include "SVGUseElementImpl.lut.h"
+#include "ksvg_bridge.h"
+#include "ksvg_ecma.h"
+
+SVGUseElementImpl::SVGUseElementImpl(DOM::ElementImpl *impl) : SVGShapeImpl(impl), SVGURIReferenceImpl(), SVGTestsImpl(), SVGLangSpaceImpl(), SVGExternalResourcesRequiredImpl(), SVGStylableImpl(this), SVGTransformableImpl()
+{
+	KSVG_EMPTY_FLAGS
+
+	m_x = new SVGAnimatedLengthImpl();
+	m_x->ref();
+
+	m_y = new SVGAnimatedLengthImpl();
+	m_y->ref();
+
+	m_width = new SVGAnimatedLengthImpl();
+	m_width->ref();
+
+	m_height = new SVGAnimatedLengthImpl();
+	m_height->ref();
+
+	m_instanceRoot = 0;
+}
+
+SVGUseElementImpl::~SVGUseElementImpl()
+{
+	if(m_x)
+		m_x->deref();
+	if(m_y)
+		m_y->deref();
+	if(m_width)
+		m_width->deref();
+	if(m_height)
+		m_height->deref();
+	if(m_instanceRoot)
+		m_instanceRoot->deref();
+}
+
+SVGAnimatedLengthImpl *SVGUseElementImpl::x() const
+{
+	return m_x;
+}
+
+SVGAnimatedLengthImpl *SVGUseElementImpl::y() const
+{
+	return m_y;
+}
+
+SVGAnimatedLengthImpl *SVGUseElementImpl::width() const
+{
+	return m_width;
+}
+
+SVGAnimatedLengthImpl *SVGUseElementImpl::height() const
+{
+	return m_height;
+}
+
+// Ecma stuff
+
+/*
+@namespace KSVG
+@begin SVGUseElementImpl::s_hashTable 11
+ x						SVGUseElementImpl::X					DontDelete|ReadOnly
+ y						SVGUseElementImpl::Y					DontDelete|ReadOnly
+ width					SVGUseElementImpl::Width				DontDelete|ReadOnly
+ height					SVGUseElementImpl::Height				DontDelete|ReadOnly
+ href					SVGUseElementImpl::Href					DontDelete|ReadOnly
+ instanceRoot			SVGUseElementImpl::InstanceRoot			DontDelete|ReadOnly
+ animatedInstanceRoot	SVGUseElementImpl::AnimatedInstanceRoot	DontDelete|ReadOnly
+@end
+*/
+
+Value SVGUseElementImpl::getValueProperty(ExecState *exec, int token) const
+{
+	KSVG_CHECK_ATTRIBUTE
+
+	switch(token)
+	{
+		case X:
+			if(!attributeMode)
+				return m_x->cache(exec);
+			else
+				return Number(m_x->baseVal()->value());
+		case Y:
+			if(!attributeMode)
+				return m_y->cache(exec);
+			else
+				return Number(m_y->baseVal()->value());
+		case Width:
+			if(!attributeMode)
+				return m_width->cache(exec);
+			else
+				return Number(m_width->baseVal()->value());
+		case Height:
+			if(!attributeMode)
+				return m_height->cache(exec);
+			else
+				return Number(m_height->baseVal()->value());
+		default:
+			kdWarning() << "Unhandled token in " << k_funcinfo << " : " << token << endl;
+			return Undefined();
+	}
+}
+
+void SVGUseElementImpl::putValueProperty(ExecState *exec, int token, const Value &value, int attr)
+{
+	// This class has just ReadOnly properties, only with the Internal flag set
+	// it's allowed to modify those.
+	if(!(attr & KJS::Internal))
+		return;
+
+	switch(token)
+	{
+		case X:
+			x()->baseVal()->setValue(value.toNumber(exec));
+			break;
+		case Y:
+			y()->baseVal()->setValue(value.toNumber(exec));
+			break;
+		case Width:
+			width()->baseVal()->setValue(value.toNumber(exec));
+			break;
+		case Height:
+			height()->baseVal()->setValue(value.toNumber(exec));
+			break;
+		case Href:
+		{
+			QString url = value.toString(exec).qstring();
+			href()->setBaseVal(SVGURIReferenceImpl::getTarget(url));
+			break;
+		}
+		default:
+			kdWarning() << "Unhandled token in " << k_funcinfo << " : " << token << endl;
+	}
+}
+
+SVGRectImpl *SVGUseElementImpl::getBBox()
+{
+	if(m_instanceRoot)
+	{
+		SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(m_instanceRoot->correspondingElement());
+		if(KSVG_TOKEN_NOT_PARSED(Width) && KSVG_TOKEN_NOT_PARSED(Height) && shape)
+			return shape->getBBox();
+	}
+
+	SVGRectImpl *ret = new SVGRectImpl();
+	ret->ref();
+	ret->setX(m_x->baseVal()->value());
+	ret->setY(m_y->baseVal()->value());
+	ret->setWidth(m_width->baseVal()->value());
+	ret->setHeight(m_height->baseVal()->value());
+	return ret;
+}
+
+SVGElementInstanceImpl *SVGUseElementImpl::instanceRoot() const
+{
+	return m_instanceRoot;
+}
+
+SVGElementInstanceImpl *SVGUseElementImpl::animatedInstanceRoot() const
+{
+	return m_animatedInstanceRoot;
+}
+
+void SVGUseElementImpl::createItem(KSVGCanvas *c)
+{
+	if(!m_instanceRoot)
+	{
+		// ownerSVGElement()->getElementById() is wrong here.
+		// It could reference elements from other documents when using getURL (Niko)
+		QString filename, id;
+		DOM::DOMString url = getAttribute("href");
+		if(!SVGURIReferenceImpl::parseURIReference(url.string(), filename, id))
+			return;
+		
+		SVGElementImpl *orig;
+		if(!filename.isEmpty())
+		{
+			KURL fragmentUrl(ownerDoc()->baseUrl(), url.string());
+
+			id = fragmentUrl.ref();
+			fragmentUrl.setRef(QString::null);
+
+			orig = KSVGLoader::getSVGFragment(fragmentUrl, ownerDoc(), id);
+		}
+		else
+		{
+			orig = ownerDoc()->getElementByIdRecursive(ownerSVGElement(), href()->baseVal());
+
+			if(orig == 0)
+			{
+				// The document will try to create this item again once the parsing has finished.
+				ownerDoc()->addForwardReferencingUseElement(this);
+			}
+		}
+		
+		if(orig == 0)
+			return;
+
+		setReferencedElement(orig);
+
+		// Create a parent, a <g>
+		SVGElementImpl *parent = 0;
+		DOM::Element impl = static_cast<DOM::Document *>(ownerDoc())->createElement("g");
+		parent = SVGDocumentImpl::createElement("g", impl, ownerDoc());
+		SVGElementImpl *clone = orig->cloneNode(true);
+
+		// Apply the use-correction
+		QString trans;
+		trans += " translate(";
+		trans += QString::number(x()->baseVal()->value());
+		trans += " ";
+		trans += QString::number(y()->baseVal()->value());
+		trans += ")";
+
+		// Apply the transform attribute and render the element
+		parent->setAttributeInternal("transform", trans);
+		parent->setAttribute("transform", trans);
+
+		// Apply width/height if symbol
+		if(dynamic_cast<SVGSymbolElementImpl *>(clone))
+		{
+			DOM::Element impl = static_cast<DOM::Document *>(ownerDoc())->createElement("svg");
+			SVGElementImpl *symbolSvg = SVGDocumentImpl::createElement("svg", impl, ownerDoc());
+
+			SVGHelperImpl::copyAttributes(orig, symbolSvg);
+			
+			symbolSvg->setAttribute("width", getAttribute("width"));
+			symbolSvg->setAttributeInternal("width", getAttribute("width"));
+			symbolSvg->setAttribute("height", getAttribute("height"));
+			symbolSvg->setAttributeInternal("height", getAttribute("height"));
+			DOM::Node node = clone->firstChild();
+			for(; !node.isNull(); node = clone->firstChild())
+				symbolSvg->appendChild(node);
+				
+			clone = symbolSvg;
+		}
+		else if(dynamic_cast<SVGSVGElementImpl *>(clone))
+		{
+			if(!getAttribute("width").isEmpty())
+			{
+				clone->setAttribute("width", getAttribute("width"));
+				clone->setAttributeInternal("width", getAttribute("width"));
+			}
+
+			if(!getAttribute("height").isEmpty())
+			{
+				clone->setAttribute("height", getAttribute("height"));
+				clone->setAttributeInternal("height", getAttribute("height"));
+			}
+		}
+
+		appendChild(*parent);
+		parent->appendChild(*clone);
+
+		setupSubtree(parent, ownerSVGElement(), viewportElement());
+
+		m_instanceRoot->setCorrespondingElement(clone);
+
+		dynamic_cast<SVGLocatableImpl *>(parent)->updateCachedScreenCTM(screenCTM());
+
+		// Redirect local ecma event handlers to the correspondingElement
+		QPtrListIterator<SVGRegisteredEventListener> it(eventListeners());
+		SVGRegisteredEventListener *eventListener;
+		while((eventListener = it.current()) != 0)
+		{
+			++it;
+			clone->setEventListener(eventListener->id, eventListener->listener);
+		}
+	}
+	
+	if(m_instanceRoot)
+	{
+		SVGElementImpl *element = m_instanceRoot->correspondingElement();
+		element->createItem(c);
+	}
+}
+
+void SVGUseElementImpl::removeItem(KSVGCanvas *c)
+{
+	if(m_instanceRoot)
+	{
+		SVGElementImpl *element = m_instanceRoot->correspondingElement();
+		element->removeItem(c);
+	}
+}
+
+void SVGUseElementImpl::setupSubtree(SVGElementImpl *element, SVGSVGElementImpl *ownerSVG, SVGElementImpl *viewport)
+{
+	element->setOwnerSVGElement(ownerSVG);
+	element->setViewportElement(viewport);
+	element->setAttributes();
+
+	SVGSVGElementImpl *thisSVG = dynamic_cast<SVGSVGElementImpl *>(element);
+
+	if(thisSVG != 0)
+	{
+		ownerSVG = thisSVG;
+		viewport = element;
+	}
+
+	DOM::Node child = element->firstChild();
+	for(; !child.isNull(); child = child.nextSibling())
+	{
+		SVGElementImpl *childElement = ownerDoc()->getElementFromHandle(child.handle());
+		if(childElement != 0)
+			setupSubtree(childElement, ownerSVG, viewport);
+	}
+}
+
+void SVGUseElementImpl::setReferencedElement(SVGElementImpl *referenced)
+{
+	if(!referenced)
+		return;
+	
+	if(!m_instanceRoot)
+	{
+		m_instanceRoot = new SVGElementInstanceImpl();
+		m_instanceRoot->ref();
+	}
+
+	m_instanceRoot->setCorrespondingElement(referenced);
+}
+
+void SVGUseElementImpl::update(CanvasItemUpdate reason, int param1, int param2)
+{
+	if(m_instanceRoot)
+	{
+		SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(m_instanceRoot->correspondingElement());
+		if(shape)
+			shape->update(reason, param1, param2);
+	}
+}
+
+void SVGUseElementImpl::invalidate(KSVGCanvas *c, bool recalc)
+{
+	if(m_instanceRoot)
+	{
+		SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(m_instanceRoot->correspondingElement());
+		if(shape)
+			shape->invalidate(c, recalc);
+	}
+}
+
+void SVGUseElementImpl::setReferenced(bool referenced)
+{
+	if(m_instanceRoot)
+	{
+		SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(m_instanceRoot->correspondingElement());
+		if(shape)
+			shape->setReferenced(referenced);
+	}
+}
+
+void SVGUseElementImpl::draw()
+{
+	if(m_instanceRoot)
+	{
+		SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(m_instanceRoot->correspondingElement());
+		if(shape)
+			shape->draw();
+	}
+}
+
+// vim:ts=4:noet