khtml/svg/SVGTextElement.cpp

   1 /*
   2     Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
   3                   2004, 2005, 2006, 2008 Rob Buis <buis@kde.org>
   4
   5     This file is part of the KDE project
   6
   7     This library is free software; you can redistribute it and/or
   8     modify it under the terms of the GNU Library General Public
   9     License as published by the Free Software Foundation; either
  10     version 2 of the License, or (at your option) any later version.
  11
  12     This library is distributed in the hope that it will be useful,
  13     but WITHOUT ANY WARRANTY; without even the implied warranty of
  14     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15     Library General Public License for more details.
  16
  17     You should have received a copy of the GNU Library General Public License
  18     along with this library; see the file COPYING.LIB.  If not, write to
  19     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20     Boston, MA 02110-1301, USA.
  21 */
  22
  23 #include "config.h"
  24 #include "wtf/Platform.h"
  25
  26 #if ENABLE(SVG)
  27 #include "SVGTextElement.h"
  28
  29 #include "AffineTransform.h"
  30 #include "FloatRect.h"
  31 #include "RenderSVGText.h"
  32 #include "SVGLengthList.h"
  33 #include "SVGRenderStyle.h"
  34 #include "SVGTSpanElement.h"
  35 #include "SVGTransformList.h"
  36
  37 namespace WebCore {
  38
  39 SVGTextElement::SVGTextElement(const QualifiedName& tagName, Document* doc)
  40     : SVGTextPositioningElement(tagName, doc)
  41     , SVGTransformable()
  42     , m_transform(SVGTransformList::create(SVGNames::transformAttr))
  43 {
  44 }
  45
  46 SVGTextElement::~SVGTextElement()
  47 {
  48 }
  49
  50 ANIMATED_PROPERTY_DEFINITIONS(SVGTextElement, SVGTransformList*, TransformList, transformList, Transform, transform, SVGNames::transformAttr, m_transform.get())
  51
  52 void SVGTextElement::parseMappedAttribute(MappedAttribute* attr)
  53 {
  54     if (attr->name() == SVGNames::transformAttr) {
  55         SVGTransformList* localTransforms = transformBaseValue();
  56
  57         ExceptionCode ec = 0;
  58         localTransforms->clear(ec);
  59
  60         if (!SVGTransformable::parseTransformAttribute(localTransforms, attr->value()))
  61             localTransforms->clear(ec);
  62         else {
  63             setTransformBaseValue(localTransforms);
  64             if (renderer())
  65                 renderer()->setNeedsLayout(true); // should be in setTransformBaseValue
  66         }
  67     } else
  68         SVGTextPositioningElement::parseMappedAttribute(attr);
  69 }
  70
  71 SVGElement* SVGTextElement::nearestViewportElement() const
  72 {
  73     return SVGTransformable::nearestViewportElement(this);
  74 }
  75
  76 SVGElement* SVGTextElement::farthestViewportElement() const
  77 {
  78     return SVGTransformable::farthestViewportElement(this);
  79 }
  80
  81 FloatRect SVGTextElement::getBBox() const
  82 {
  83     return SVGTransformable::getBBox(this);
  84 }
  85
  86 AffineTransform SVGTextElement::getScreenCTM() const
  87 {
  88     return SVGTransformable::getScreenCTM(this);
  89 }
  90
  91 AffineTransform SVGTextElement::getCTM() const
  92 {
  93     return SVGTransformable::getCTM(this);
  94 }
  95
  96 AffineTransform SVGTextElement::animatedLocalTransform() const
  97 {
  98     return m_supplementalTransform ? transform()->concatenate().matrix() * *m_supplementalTransform : transform()->concatenate().matrix();
  99 }
 100
 101 AffineTransform* SVGTextElement::supplementalTransform()
 102 {
 103     if (!m_supplementalTransform)
 104         m_supplementalTransform.set(new AffineTransform());
 105     return m_supplementalTransform.get();
 106 }
 107
 108 RenderObject* SVGTextElement::createRenderer(RenderArena* arena, RenderStyle* style)
 109 {
 110     kDebug() << "create renderer for <text>" << endl;
 111     return new (arena) RenderSVGText(this);
 112 }
 113
 114 bool SVGTextElement::childShouldCreateRenderer(Node* child) const
 115 {
 116     if (child->isTextNode()
 117 #if ENABLE(SVG_FONTS)
 118         || child->hasTagName(SVGNames::altGlyphTag)
 119 #endif
 120         || child->hasTagName(SVGNames::tspanTag) || child->hasTagName(SVGNames::trefTag) || child->hasTagName(SVGNames::aTag) || child->hasTagName(SVGNames::textPathTag))
 121         return true;
 122     return false;
 123 }
 124
 125 void SVGTextElement::svgAttributeChanged(const QualifiedName& attrName)
 126 {
 127     SVGTextPositioningElement::svgAttributeChanged(attrName);
 128
 129     if (!renderer())
 130         return;
 131
 132     if (SVGTextPositioningElement::isKnownAttribute(attrName))
 133         renderer()->setNeedsLayout(true);
 134 }
 135
 136 }
 137
 138 #endif // ENABLE(SVG)