1/*
2 * Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
3 * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@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 "SVGCircleElement.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
33namespace WebCore {
34
35// Animated property definitions
36DEFINE_ANIMATED_LENGTH(SVGCircleElement, SVGNames::cxAttr, Cx, cx)
37DEFINE_ANIMATED_LENGTH(SVGCircleElement, SVGNames::cyAttr, Cy, cy)
38DEFINE_ANIMATED_LENGTH(SVGCircleElement, SVGNames::rAttr, R, r)
39DEFINE_ANIMATED_BOOLEAN(SVGCircleElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired)
40
41inline SVGCircleElement::SVGCircleElement(const QualifiedName& tagName, Document* document)
42    : SVGStyledTransformableElement(tagName, document)
43    , m_cx(LengthModeWidth)
44    , m_cy(LengthModeHeight)
45    , m_r(LengthModeOther)
46{
47}
48
49PassRefPtr<SVGCircleElement> SVGCircleElement::create(const QualifiedName& tagName, Document* document)
50{
51    return adoptRef(new SVGCircleElement(tagName, document));
52}
53
54void SVGCircleElement::parseMappedAttribute(Attribute* attr)
55{
56    if (attr->name() == SVGNames::cxAttr)
57        setCxBaseValue(SVGLength(LengthModeWidth, attr->value()));
58    else if (attr->name() == SVGNames::cyAttr)
59        setCyBaseValue(SVGLength(LengthModeHeight, attr->value()));
60    else if (attr->name() == SVGNames::rAttr) {
61        setRBaseValue(SVGLength(LengthModeOther, attr->value()));
62        if (rBaseValue().value(this) < 0.0)
63            document()->accessSVGExtensions()->reportError("A negative value for circle <r> is not allowed");
64    } else {
65        if (SVGTests::parseMappedAttribute(attr))
66            return;
67        if (SVGLangSpace::parseMappedAttribute(attr))
68            return;
69        if (SVGExternalResourcesRequired::parseMappedAttribute(attr))
70            return;
71        SVGStyledTransformableElement::parseMappedAttribute(attr);
72    }
73}
74
75void SVGCircleElement::svgAttributeChanged(const QualifiedName& attrName)
76{
77    SVGStyledTransformableElement::svgAttributeChanged(attrName);
78
79    bool isLengthAttribute = attrName == SVGNames::cxAttr
80                          || attrName == SVGNames::cyAttr
81                          || attrName == SVGNames::rAttr;
82
83    if (isLengthAttribute)
84        updateRelativeLengthsInformation();
85
86    if (SVGTests::handleAttributeChange(this, attrName))
87        return;
88
89    RenderSVGPath* renderer = static_cast<RenderSVGPath*>(this->renderer());
90    if (!renderer)
91        return;
92
93    if (isLengthAttribute) {
94        renderer->setNeedsPathUpdate();
95        RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
96        return;
97    }
98
99    if (SVGLangSpace::isKnownAttribute(attrName)
100        || SVGExternalResourcesRequired::isKnownAttribute(attrName))
101        RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
102}
103
104void SVGCircleElement::synchronizeProperty(const QualifiedName& attrName)
105{
106    SVGStyledTransformableElement::synchronizeProperty(attrName);
107
108    if (attrName == anyQName()) {
109        synchronizeCx();
110        synchronizeCy();
111        synchronizeR();
112        synchronizeExternalResourcesRequired();
113        SVGTests::synchronizeProperties(this, attrName);
114        return;
115    }
116
117    if (attrName == SVGNames::cxAttr)
118        synchronizeCx();
119    else if (attrName == SVGNames::cyAttr)
120        synchronizeCy();
121    else if (attrName == SVGNames::rAttr)
122        synchronizeR();
123    else if (SVGExternalResourcesRequired::isKnownAttribute(attrName))
124        synchronizeExternalResourcesRequired();
125    else if (SVGTests::isKnownAttribute(attrName))
126        SVGTests::synchronizeProperties(this, attrName);
127}
128
129AttributeToPropertyTypeMap& SVGCircleElement::attributeToPropertyTypeMap()
130{
131    DEFINE_STATIC_LOCAL(AttributeToPropertyTypeMap, s_attributeToPropertyTypeMap, ());
132    return s_attributeToPropertyTypeMap;
133}
134
135void SVGCircleElement::fillAttributeToPropertyTypeMap()
136{
137    AttributeToPropertyTypeMap& attributeToPropertyTypeMap = this->attributeToPropertyTypeMap();
138
139    SVGStyledTransformableElement::fillPassedAttributeToPropertyTypeMap(attributeToPropertyTypeMap);
140    attributeToPropertyTypeMap.set(SVGNames::cxAttr, AnimatedLength);
141    attributeToPropertyTypeMap.set(SVGNames::cyAttr, AnimatedLength);
142    attributeToPropertyTypeMap.set(SVGNames::rAttr, AnimatedLength);
143}
144
145void SVGCircleElement::toPathData(Path& path) const
146{
147    ASSERT(path.isEmpty());
148
149    float radius = r().value(this);
150
151    if (radius <= 0)
152        return;
153
154    path.addEllipse(FloatRect(cx().value(this) - radius, cy().value(this) - radius, radius * 2, radius * 2));
155}
156
157bool SVGCircleElement::selfHasRelativeLengths() const
158{
159    return cx().isRelative()
160        || cy().isRelative()
161        || r().isRelative();
162}
163
164}
165
166#endif // ENABLE(SVG)
167