Home | History | Annotate | Download | only in svg 
      1 /*
      2  * Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann (at) kde.org>
      3  * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis (at) kde.org>
      4  *
      5  * This library is free software; you can redistribute it and/or
      6  * modify it under the terms of the GNU Library General Public
      7  * License as published by the Free Software Foundation; either
      8  * version 2 of the License, or (at your option) any later version.
      9  *
     10  * This library is distributed in the hope that it will be useful,
     11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     13  * Library General Public License for more details.
     14  *
     15  * You should have received a copy of the GNU Library General Public License
     16  * along with this library; see the file COPYING.LIB.  If not, write to
     17  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     18  * Boston, MA 02110-1301, USA.
     19  */
     20 
     21 #include "config.h"
     22 
     23 #if ENABLE(SVG)
     24 #include "SVGLineElement.h"
     25 
     26 #include "Attribute.h"
     27 #include "FloatPoint.h"
     28 #include "RenderSVGPath.h"
     29 #include "RenderSVGResource.h"
     30 #include "SVGLength.h"
     31 #include "SVGNames.h"
     32 
     33 namespace WebCore {
     34 
     35 // Animated property definitions
     36 DEFINE_ANIMATED_LENGTH(SVGLineElement, SVGNames::x1Attr, X1, x1)
     37 DEFINE_ANIMATED_LENGTH(SVGLineElement, SVGNames::y1Attr, Y1, y1)
     38 DEFINE_ANIMATED_LENGTH(SVGLineElement, SVGNames::x2Attr, X2, x2)
     39 DEFINE_ANIMATED_LENGTH(SVGLineElement, SVGNames::y2Attr, Y2, y2)
     40 DEFINE_ANIMATED_BOOLEAN(SVGLineElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired)
     41 
     42 inline SVGLineElement::SVGLineElement(const QualifiedName& tagName, Document* document)
     43     : SVGStyledTransformableElement(tagName, document)
     44     , m_x1(LengthModeWidth)
     45     , m_y1(LengthModeHeight)
     46     , m_x2(LengthModeWidth)
     47     , m_y2(LengthModeHeight)
     48 {
     49 }
     50 
     51 PassRefPtr<SVGLineElement> SVGLineElement::create(const QualifiedName& tagName, Document* document)
     52 {
     53     return adoptRef(new SVGLineElement(tagName, document));
     54 }
     55 
     56 void SVGLineElement::parseMappedAttribute(Attribute* attr)
     57 {
     58     if (attr->name() == SVGNames::x1Attr)
     59         setX1BaseValue(SVGLength(LengthModeWidth, attr->value()));
     60     else if (attr->name() == SVGNames::y1Attr)
     61         setY1BaseValue(SVGLength(LengthModeHeight, attr->value()));
     62     else if (attr->name() == SVGNames::x2Attr)
     63         setX2BaseValue(SVGLength(LengthModeWidth, attr->value()));
     64     else if (attr->name() == SVGNames::y2Attr)
     65         setY2BaseValue(SVGLength(LengthModeHeight, attr->value()));
     66     else {
     67         if (SVGTests::parseMappedAttribute(attr))
     68             return;
     69         if (SVGLangSpace::parseMappedAttribute(attr))
     70             return;
     71         if (SVGExternalResourcesRequired::parseMappedAttribute(attr))
     72             return;
     73         SVGStyledTransformableElement::parseMappedAttribute(attr);
     74     }
     75 }
     76 
     77 void SVGLineElement::svgAttributeChanged(const QualifiedName& attrName)
     78 {
     79     SVGStyledTransformableElement::svgAttributeChanged(attrName);
     80 
     81     bool isLengthAttribute = attrName == SVGNames::x1Attr
     82                           || attrName == SVGNames::y1Attr
     83                           || attrName == SVGNames::x2Attr
     84                           || attrName == SVGNames::y2Attr;
     85 
     86     if (isLengthAttribute)
     87         updateRelativeLengthsInformation();
     88 
     89     if (SVGTests::handleAttributeChange(this, attrName))
     90         return;
     91 
     92     RenderSVGPath* renderer = static_cast<RenderSVGPath*>(this->renderer());
     93     if (!renderer)
     94         return;
     95 
     96     if (isLengthAttribute) {
     97         renderer->setNeedsPathUpdate();
     98         RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
     99         return;
    100     }
    101 
    102     if (SVGLangSpace::isKnownAttribute(attrName)
    103         || SVGExternalResourcesRequired::isKnownAttribute(attrName))
    104         RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
    105 }
    106 
    107 void SVGLineElement::synchronizeProperty(const QualifiedName& attrName)
    108 {
    109     SVGStyledTransformableElement::synchronizeProperty(attrName);
    110 
    111     if (attrName == anyQName()) {
    112         synchronizeX1();
    113         synchronizeY1();
    114         synchronizeX2();
    115         synchronizeY2();
    116         synchronizeExternalResourcesRequired();
    117         SVGTests::synchronizeProperties(this, attrName);
    118         return;
    119     }
    120 
    121     if (attrName == SVGNames::x1Attr)
    122         synchronizeX1();
    123     else if (attrName == SVGNames::y1Attr)
    124         synchronizeY1();
    125     else if (attrName == SVGNames::x2Attr)
    126         synchronizeX2();
    127     else if (attrName == SVGNames::y2Attr)
    128         synchronizeY2();
    129     else if (SVGExternalResourcesRequired::isKnownAttribute(attrName))
    130         synchronizeExternalResourcesRequired();
    131     else if (SVGTests::isKnownAttribute(attrName))
    132         SVGTests::synchronizeProperties(this, attrName);
    133 }
    134 
    135 AttributeToPropertyTypeMap& SVGLineElement::attributeToPropertyTypeMap()
    136 {
    137     DEFINE_STATIC_LOCAL(AttributeToPropertyTypeMap, s_attributeToPropertyTypeMap, ());
    138     return s_attributeToPropertyTypeMap;
    139 }
    140 
    141 void SVGLineElement::fillAttributeToPropertyTypeMap()
    142 {
    143     AttributeToPropertyTypeMap& attributeToPropertyTypeMap = this->attributeToPropertyTypeMap();
    144 
    145     SVGStyledTransformableElement::fillPassedAttributeToPropertyTypeMap(attributeToPropertyTypeMap);
    146     attributeToPropertyTypeMap.set(SVGNames::x1Attr, AnimatedLength);
    147     attributeToPropertyTypeMap.set(SVGNames::y1Attr, AnimatedLength);
    148     attributeToPropertyTypeMap.set(SVGNames::x2Attr, AnimatedLength);
    149     attributeToPropertyTypeMap.set(SVGNames::y2Attr, AnimatedLength);
    150 }
    151 
    152 void SVGLineElement::toPathData(Path& path) const
    153 {
    154     ASSERT(path.isEmpty());
    155 
    156     path.moveTo(FloatPoint(x1().value(this), y1().value(this)));
    157     path.addLineTo(FloatPoint(x2().value(this), y2().value(this)));
    158 }
    159 
    160 bool SVGLineElement::selfHasRelativeLengths() const
    161 {
    162     return x1().isRelative()
    163         || y1().isRelative()
    164         || x2().isRelative()
    165         || y2().isRelative();
    166 }
    167 
    168 }
    169 
    170 #endif // ENABLE(SVG)
    171