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SVGStyledTransformableElement.cpp

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00001 /*
00002     Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
00003                   2004, 2005, 2006 Rob Buis <buis@kde.org>
00004 
00005     This file is part of the KDE project
00006 
00007     This library is free software; you can redistribute it and/or
00008     modify it under the terms of the GNU Library General Public
00009     License as published by the Free Software Foundation; either
00010     version 2 of the License, or (at your option) any later version.
00011 
00012     This library is distributed in the hope that it will be useful,
00013     but WITHOUT ANY WARRANTY; without even the implied warranty of
00014     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015     Library General Public License for more details.
00016 
00017     You should have received a copy of the GNU Library General Public License
00018     along with this library; see the file COPYING.LIB.  If not, write to
00019     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00020     Boston, MA 02110-1301, USA.
00021 */
00022 
00023 #include "config.h"
00024 #include "wtf/Platform.h"
00025 
00026 #if ENABLE(SVG)
00027 #include "SVGStyledTransformableElement.h"
00028 
00029 /*#include "Attr.h"
00030 #include "RegularExpression.h"*/
00031 #include "RenderPath.h"
00032 #include "SVGDocument.h"
00033 #include "AffineTransform.h"
00034 #include "SVGStyledElement.h"
00035 #include "SVGTransformList.h"
00036 
00037 namespace WebCore {
00038 
00039 SVGStyledTransformableElement::SVGStyledTransformableElement(const QualifiedName& tagName, Document* doc)
00040     : SVGStyledLocatableElement(tagName, doc)
00041     , SVGTransformable()
00042     , m_transform(SVGTransformList::create(SVGNames::transformAttr))
00043 {
00044 }
00045 
00046 SVGStyledTransformableElement::~SVGStyledTransformableElement()
00047 {
00048 }
00049 
00050 ANIMATED_PROPERTY_DEFINITIONS(SVGStyledTransformableElement, SVGTransformList*, TransformList, transformList, Transform, transform, SVGNames::transformAttr, m_transform.get())
00051 
00052 AffineTransform SVGStyledTransformableElement::getCTM() const
00053 {
00054     return SVGTransformable::getCTM(this);
00055 }
00056 
00057 AffineTransform SVGStyledTransformableElement::getScreenCTM() const
00058 {
00059     return SVGTransformable::getScreenCTM(this);
00060 }
00061 
00062 AffineTransform SVGStyledTransformableElement::animatedLocalTransform() const
00063 {
00064     return m_supplementalTransform ? transform()->concatenate().matrix() * *m_supplementalTransform : transform()->concatenate().matrix();
00065 }
00066     
00067 AffineTransform* SVGStyledTransformableElement::supplementalTransform()
00068 {
00069     if (!m_supplementalTransform)
00070         m_supplementalTransform.set(new AffineTransform());
00071     return m_supplementalTransform.get();
00072 }
00073 
00074 void SVGStyledTransformableElement::parseMappedAttribute(MappedAttribute* attr)
00075 {
00076     if (attr->name() == SVGNames::transformAttr) {
00077         SVGTransformList* localTransforms = transformBaseValue();
00078 
00079         ExceptionCode ec = 0;
00080         localTransforms->clear(ec);
00081  
00082         if (!SVGTransformable::parseTransformAttribute(localTransforms, attr->value()))
00083             localTransforms->clear(ec);
00084         else
00085             setTransformBaseValue(localTransforms);
00086     } else
00087         SVGStyledLocatableElement::parseMappedAttribute(attr);
00088 }
00089 
00090 bool SVGStyledTransformableElement::isKnownAttribute(const QualifiedName& attrName)
00091 {
00092     return SVGTransformable::isKnownAttribute(attrName) ||
00093            SVGStyledLocatableElement::isKnownAttribute(attrName);
00094 }
00095 
00096 SVGElement* SVGStyledTransformableElement::nearestViewportElement() const
00097 {
00098     return SVGTransformable::nearestViewportElement(this);
00099 }
00100 
00101 SVGElement* SVGStyledTransformableElement::farthestViewportElement() const
00102 {
00103     return SVGTransformable::farthestViewportElement(this);
00104 }
00105 
00106 FloatRect SVGStyledTransformableElement::getBBox() const
00107 {
00108     return SVGTransformable::getBBox(this);
00109 }
00110 
00111 RenderObject* SVGStyledTransformableElement::createRenderer(RenderArena* arena, RenderStyle* style)
00112 {
00113     // By default, any subclass is expected to do path-based drawing
00114     return new (arena) RenderPath(style, this);
00115 }
00116 
00117 }
00118 
00119 #endif // ENABLE(SVG)

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