1 /*
2 Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
3 2004, 2005, 2006 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) && ENABLE(FILTERS)
24 #include "SVGFEMergeElement.h"
25
26 #include "SVGFEMergeNodeElement.h"
27 #include "SVGResourceFilter.h"
28
29 namespace WebCore {
30
SVGFEMergeElement(const QualifiedName & tagName,Document * doc)31 SVGFEMergeElement::SVGFEMergeElement(const QualifiedName& tagName, Document* doc)
32 : SVGFilterPrimitiveStandardAttributes(tagName, doc)
33 {
34 }
35
~SVGFEMergeElement()36 SVGFEMergeElement::~SVGFEMergeElement()
37 {
38 }
39
build(SVGResourceFilter * filterResource)40 bool SVGFEMergeElement::build(SVGResourceFilter* filterResource)
41 {
42 Vector<RefPtr<FilterEffect> > mergeInputs;
43 for (Node* n = firstChild(); n != 0; n = n->nextSibling()) {
44 if (n->hasTagName(SVGNames::feMergeNodeTag)) {
45 FilterEffect* mergeEffect = filterResource->builder()->getEffectById(static_cast<SVGFEMergeNodeElement*>(n)->in1());
46 if (!mergeEffect)
47 return false;
48 mergeInputs.append(mergeEffect);
49 }
50 }
51
52 if (mergeInputs.isEmpty())
53 return false;
54
55 RefPtr<FilterEffect> effect = FEMerge::create(mergeInputs);
56 filterResource->addFilterEffect(this, effect.release());
57
58 return true;
59 }
60
61 }
62
63 #endif // ENABLE(SVG)
64
65 // vim:ts=4:noet
66