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1 /*
2  * Copyright (C) 2004, 2005, 2007, 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 "SVGStopElement.h"
25 
26 #include "Attribute.h"
27 #include "Document.h"
28 #include "RenderSVGGradientStop.h"
29 #include "RenderSVGResource.h"
30 #include "SVGGradientElement.h"
31 #include "SVGNames.h"
32 
33 namespace WebCore {
34 
35 // Animated property definitions
DEFINE_ANIMATED_NUMBER(SVGStopElement,SVGNames::offsetAttr,Offset,offset)36 DEFINE_ANIMATED_NUMBER(SVGStopElement, SVGNames::offsetAttr, Offset, offset)
37 
38 inline SVGStopElement::SVGStopElement(const QualifiedName& tagName, Document* document)
39     : SVGStyledElement(tagName, document)
40     , m_offset(0)
41 {
42 }
43 
create(const QualifiedName & tagName,Document * document)44 PassRefPtr<SVGStopElement> SVGStopElement::create(const QualifiedName& tagName, Document* document)
45 {
46     return adoptRef(new SVGStopElement(tagName, document));
47 }
48 
parseMappedAttribute(Attribute * attr)49 void SVGStopElement::parseMappedAttribute(Attribute* attr)
50 {
51     if (attr->name() == SVGNames::offsetAttr) {
52         const String& value = attr->value();
53         if (value.endsWith("%"))
54             setOffsetBaseValue(value.left(value.length() - 1).toFloat() / 100.0f);
55         else
56             setOffsetBaseValue(value.toFloat());
57     } else
58         SVGStyledElement::parseMappedAttribute(attr);
59 }
60 
svgAttributeChanged(const QualifiedName & attrName)61 void SVGStopElement::svgAttributeChanged(const QualifiedName& attrName)
62 {
63     SVGStyledElement::svgAttributeChanged(attrName);
64 
65     if (!renderer())
66         return;
67 
68     if (attrName == SVGNames::offsetAttr)
69         RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer());
70 }
71 
synchronizeProperty(const QualifiedName & attrName)72 void SVGStopElement::synchronizeProperty(const QualifiedName& attrName)
73 {
74     SVGStyledElement::synchronizeProperty(attrName);
75 
76     if (attrName == anyQName() || attrName == SVGNames::offsetAttr)
77         synchronizeOffset();
78 }
79 
attributeToPropertyTypeMap()80 AttributeToPropertyTypeMap& SVGStopElement::attributeToPropertyTypeMap()
81 {
82     DEFINE_STATIC_LOCAL(AttributeToPropertyTypeMap, s_attributeToPropertyTypeMap, ());
83     return s_attributeToPropertyTypeMap;
84 }
85 
fillAttributeToPropertyTypeMap()86 void SVGStopElement::fillAttributeToPropertyTypeMap()
87 {
88     AttributeToPropertyTypeMap& attributeToPropertyTypeMap = this->attributeToPropertyTypeMap();
89 
90     SVGStyledElement::fillPassedAttributeToPropertyTypeMap(attributeToPropertyTypeMap);
91     attributeToPropertyTypeMap.set(SVGNames::offsetAttr, AnimatedLength);
92 }
93 
createRenderer(RenderArena * arena,RenderStyle *)94 RenderObject* SVGStopElement::createRenderer(RenderArena* arena, RenderStyle*)
95 {
96     return new (arena) RenderSVGGradientStop(this);
97 }
98 
stopColorIncludingOpacity() const99 Color SVGStopElement::stopColorIncludingOpacity() const
100 {
101     ASSERT(renderer());
102     ASSERT(renderer()->style());
103 
104     const SVGRenderStyle* svgStyle = renderer()->style()->svgStyle();
105     return colorWithOverrideAlpha(svgStyle->stopColor().rgb(), svgStyle->stopOpacity());
106 }
107 
108 }
109 
110 #endif // ENABLE(SVG)
111