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 "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
33namespace WebCore {
34
35// Animated property definitions
36DEFINE_ANIMATED_LENGTH(SVGLineElement, SVGNames::x1Attr, X1, x1)
37DEFINE_ANIMATED_LENGTH(SVGLineElement, SVGNames::y1Attr, Y1, y1)
38DEFINE_ANIMATED_LENGTH(SVGLineElement, SVGNames::x2Attr, X2, x2)
39DEFINE_ANIMATED_LENGTH(SVGLineElement, SVGNames::y2Attr, Y2, y2)
40DEFINE_ANIMATED_BOOLEAN(SVGLineElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired)
41
42inline 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
51PassRefPtr<SVGLineElement> SVGLineElement::create(const QualifiedName& tagName, Document* document)
52{
53    return adoptRef(new SVGLineElement(tagName, document));
54}
55
56void 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
77void 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
107void 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
135AttributeToPropertyTypeMap& SVGLineElement::attributeToPropertyTypeMap()
136{
137    DEFINE_STATIC_LOCAL(AttributeToPropertyTypeMap, s_attributeToPropertyTypeMap, ());
138    return s_attributeToPropertyTypeMap;
139}
140
141void 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
152void 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
160bool 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