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      1 /*
      2     Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann (at) kde.org>
      3                   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 "SVGRectElement.h"
     25 
     26 #include "MappedAttribute.h"
     27 #include "RenderPath.h"
     28 #include "SVGLength.h"
     29 #include "SVGNames.h"
     30 
     31 namespace WebCore {
     32 
     33 SVGRectElement::SVGRectElement(const QualifiedName& tagName, Document *doc)
     34     : SVGStyledTransformableElement(tagName, doc)
     35     , SVGTests()
     36     , SVGLangSpace()
     37     , SVGExternalResourcesRequired()
     38     , m_x(LengthModeWidth)
     39     , m_y(LengthModeHeight)
     40     , m_width(LengthModeWidth)
     41     , m_height(LengthModeHeight)
     42     , m_rx(LengthModeWidth)
     43     , m_ry(LengthModeHeight)
     44 {
     45 }
     46 
     47 SVGRectElement::~SVGRectElement()
     48 {
     49 }
     50 
     51 void SVGRectElement::parseMappedAttribute(MappedAttribute* attr)
     52 {
     53     if (attr->name() == SVGNames::xAttr)
     54         setXBaseValue(SVGLength(LengthModeWidth, attr->value()));
     55     else if (attr->name() == SVGNames::yAttr)
     56         setYBaseValue(SVGLength(LengthModeHeight, attr->value()));
     57     else if (attr->name() == SVGNames::rxAttr) {
     58         setRxBaseValue(SVGLength(LengthModeWidth, attr->value()));
     59         if (rxBaseValue().value(this) < 0.0)
     60             document()->accessSVGExtensions()->reportError("A negative value for rect <rx> is not allowed");
     61     } else if (attr->name() == SVGNames::ryAttr) {
     62         setRyBaseValue(SVGLength(LengthModeHeight, attr->value()));
     63         if (ryBaseValue().value(this) < 0.0)
     64             document()->accessSVGExtensions()->reportError("A negative value for rect <ry> is not allowed");
     65     } else if (attr->name() == SVGNames::widthAttr) {
     66         setWidthBaseValue(SVGLength(LengthModeWidth, attr->value()));
     67         if (widthBaseValue().value(this) < 0.0)
     68             document()->accessSVGExtensions()->reportError("A negative value for rect <width> is not allowed");
     69     } else if (attr->name() == SVGNames::heightAttr) {
     70         setHeightBaseValue(SVGLength(LengthModeHeight, attr->value()));
     71         if (heightBaseValue().value(this) < 0.0)
     72             document()->accessSVGExtensions()->reportError("A negative value for rect <height> is not allowed");
     73     } else {
     74         if (SVGTests::parseMappedAttribute(attr))
     75             return;
     76         if (SVGLangSpace::parseMappedAttribute(attr))
     77             return;
     78         if (SVGExternalResourcesRequired::parseMappedAttribute(attr))
     79             return;
     80         SVGStyledTransformableElement::parseMappedAttribute(attr);
     81     }
     82 }
     83 
     84 void SVGRectElement::svgAttributeChanged(const QualifiedName& attrName)
     85 {
     86     SVGStyledTransformableElement::svgAttributeChanged(attrName);
     87 
     88     if (!renderer())
     89         return;
     90 
     91     if (attrName == SVGNames::xAttr || attrName == SVGNames::yAttr ||
     92         attrName == SVGNames::widthAttr || attrName == SVGNames::heightAttr ||
     93         attrName == SVGNames::rxAttr || attrName == SVGNames::ryAttr ||
     94         SVGTests::isKnownAttribute(attrName) ||
     95         SVGLangSpace::isKnownAttribute(attrName) ||
     96         SVGExternalResourcesRequired::isKnownAttribute(attrName) ||
     97         SVGStyledTransformableElement::isKnownAttribute(attrName))
     98         renderer()->setNeedsLayout(true);
     99 }
    100 
    101 void SVGRectElement::synchronizeProperty(const QualifiedName& attrName)
    102 {
    103     SVGStyledTransformableElement::synchronizeProperty(attrName);
    104 
    105     if (attrName == anyQName()) {
    106         synchronizeX();
    107         synchronizeY();
    108         synchronizeWidth();
    109         synchronizeHeight();
    110         synchronizeRx();
    111         synchronizeRy();
    112         synchronizeExternalResourcesRequired();
    113         return;
    114     }
    115 
    116     if (attrName == SVGNames::xAttr)
    117         synchronizeX();
    118     else if (attrName == SVGNames::yAttr)
    119         synchronizeY();
    120     else if (attrName == SVGNames::widthAttr)
    121         synchronizeWidth();
    122     else if (attrName == SVGNames::heightAttr)
    123         synchronizeHeight();
    124     else if (attrName == SVGNames::rxAttr)
    125         synchronizeRx();
    126     else if (attrName == SVGNames::ryAttr)
    127         synchronizeRy();
    128     else if (SVGExternalResourcesRequired::isKnownAttribute(attrName))
    129         synchronizeExternalResourcesRequired();
    130 }
    131 
    132 Path SVGRectElement::toPathData() const
    133 {
    134     FloatRect rect(x().value(this), y().value(this), width().value(this), height().value(this));
    135 
    136     bool hasRx = hasAttribute(SVGNames::rxAttr);
    137     bool hasRy = hasAttribute(SVGNames::ryAttr);
    138     if (hasRx || hasRy) {
    139         float _rx = hasRx ? rx().value(this) : ry().value(this);
    140         float _ry = hasRy ? ry().value(this) : rx().value(this);
    141         return Path::createRoundedRectangle(rect, FloatSize(_rx, _ry));
    142     }
    143 
    144     return Path::createRectangle(rect);
    145 }
    146 
    147 bool SVGRectElement::hasRelativeValues() const
    148 {
    149     return (x().isRelative() || width().isRelative() ||
    150             y().isRelative() || height().isRelative() ||
    151             rx().isRelative() || ry().isRelative());
    152 }
    153 
    154 }
    155 
    156 #endif // ENABLE(SVG)
    157