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SVGFEImageElement.cpp
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1/*
2 Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
3 2004, 2005 Rob Buis <buis@kde.org>
4
5 This file is part of the KDE project
6
7 This library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Library General Public
9 License as published by the Free Software Foundation; either
10 version 2 of the License, or (at your option) any later version.
11
12 This library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Library General Public License for more details.
16
17 You should have received a copy of the GNU Library General Public License
18 along with this library; see the file COPYING.LIB. If not, write to
19 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA.
21*/
22
23#include "config.h"
24
25#if ENABLE(SVG) && ENABLE(SVG_FILTERS)
26#include "SVGFEImageElement.h"
27
28#include "Attr.h"
29#include "CachedImage.h"
30#include "DocLoader.h"
31#include "Document.h"
32#include "SVGLength.h"
33#include "SVGNames.h"
34#include "SVGPreserveAspectRatio.h"
35#include "SVGResourceFilter.h"
36
37namespace WebCore {
38
39SVGFEImageElement::SVGFEImageElement(const QualifiedName& tagName, Document* doc)
40 : SVGFilterPrimitiveStandardAttributes(tagName, doc)
41 , SVGURIReference()
42 , SVGLangSpace()
43 , SVGExternalResourcesRequired()
44 , m_preserveAspectRatio(SVGPreserveAspectRatio::create())
45 , m_cachedImage(0)
46 , m_filterEffect(0)
47{
48}
49
50SVGFEImageElement::~SVGFEImageElement()
51{
52 delete m_filterEffect;
53 if (m_cachedImage)
54 m_cachedImage->removeClient(this);
55}
56
57ANIMATED_PROPERTY_DEFINITIONS(SVGFEImageElement, SVGPreserveAspectRatio*, PreserveAspectRatio, preserveAspectRatio, PreserveAspectRatio, preserveAspectRatio, SVGNames::preserveAspectRatioAttr, m_preserveAspectRatio.get())
58
59void SVGFEImageElement::parseMappedAttribute(MappedAttribute* attr)
60{
61 const String& value = attr->value();
62 if (attr->name() == SVGNames::preserveAspectRatioAttr) {
63 const UChar* c = value.characters();
64 const UChar* end = c + value.length();
65 preserveAspectRatioBaseValue()->parsePreserveAspectRatio(c, end);
66 } else {
67 if (SVGURIReference::parseMappedAttribute(attr)) {
68 if (!href().startsWith("#")) {
69 // FIXME: this code needs to special-case url fragments and later look them up using getElementById instead of loading them here
70 if (m_cachedImage)
71 m_cachedImage->removeClient(this);
72 m_cachedImage = ownerDocument()->docLoader()->requestImage(href());
73 if (m_cachedImage)
74 m_cachedImage->addClient(this);
75 }
76 return;
77 }
78 if (SVGLangSpace::parseMappedAttribute(attr))
79 return;
80 if (SVGExternalResourcesRequired::parseMappedAttribute(attr))
81 return;
82
83 SVGFilterPrimitiveStandardAttributes::parseMappedAttribute(attr);
84 }
85}
86
87void SVGFEImageElement::notifyFinished(CachedResource* finishedObj)
88{
89 if (finishedObj == m_cachedImage && m_filterEffect)
90 m_filterEffect->setCachedImage(m_cachedImage);
91}
92
93SVGFEImage* SVGFEImageElement::filterEffect(SVGResourceFilter* filter) const
94{
95 if (!m_filterEffect)
96 m_filterEffect = new SVGFEImage(filter);
97
98 // The resource may already be loaded!
99 if (m_cachedImage)
100 m_filterEffect->setCachedImage(m_cachedImage);
101
102 setStandardAttributes(m_filterEffect);
103 return m_filterEffect;
104}
105
106void SVGFEImageElement::getSubresourceAttributeStrings(Vector<String>& urls) const
107{
108 urls.append(href());
109}
110
111}
112
113#endif // ENABLE(SVG)
114
115// vim:ts=4:noet
SVGFEImageElement.h
SVGLength.h
SVGNames.h
SVGPreserveAspectRatio.h
SVGResourceFilter.h
DOM::DOMString::characters
QChar * characters() const
Definition: dom_string.h:109
create
KAction * create(StandardAction id, const QObject *recvr, const char *slot, QObject *parent)
end
const KShortcut & end()
WebCore
Definition: CSSHelper.h:7
WebCore::String
DOM::DOMString String
Definition: PlatformString.h:8
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