1 /*
2 Copyright (C) 2005 Oliver Hunt <ojh16@student.canterbury.ac.nz>
3
4 This library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public
6 License as published by the Free Software Foundation; either
7 version 2 of the License, or (at your option) any later version.
8
9 This library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
13
14 You should have received a copy of the GNU Library General Public License
15 along with this library; see the file COPYING.LIB. If not, write to
16 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 Boston, MA 02110-1301, USA.
18 */
19
20 #include "config.h"
21
22 #if ENABLE(SVG) && ENABLE(FILTERS)
23 #include "SVGFESpotLightElement.h"
24 #include "SVGSpotLightSource.h"
25
26 namespace WebCore {
27
SVGFESpotLightElement(const QualifiedName & tagName,Document * doc)28 SVGFESpotLightElement::SVGFESpotLightElement(const QualifiedName& tagName, Document* doc)
29 : SVGFELightElement(tagName, doc)
30 {
31 }
32
~SVGFESpotLightElement()33 SVGFESpotLightElement::~SVGFESpotLightElement()
34 {
35 }
36
lightSource() const37 PassRefPtr<LightSource> SVGFESpotLightElement::lightSource() const
38 {
39 FloatPoint3D pos(x(), y(), z());
40
41 // convert lookAt to a direction
42 FloatPoint3D direction(pointsAtX() - pos.x(),
43 pointsAtY() - pos.y(),
44 pointsAtZ() - pos.z());
45
46 direction.normalize();
47 return SpotLightSource::create(pos, direction, specularExponent(), limitingConeAngle());
48 }
49
50 }
51
52 #endif // ENABLE(SVG)
53
54 // vim:ts=4:noet
55