1 /*
2 * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
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 * aint 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(FILTERS)
23 #include "SourceGraphic.h"
24
25 #include "GraphicsContext.h"
26 #include "PlatformString.h"
27 #include "Filter.h"
28
29 #include <wtf/StdLibExtras.h>
30
31 namespace WebCore {
32
create()33 PassRefPtr<SourceGraphic> SourceGraphic::create()
34 {
35 return adoptRef(new SourceGraphic);
36 }
37
effectName()38 const AtomicString& SourceGraphic::effectName()
39 {
40 DEFINE_STATIC_LOCAL(const AtomicString, s_effectName, ("SourceGraphic"));
41 return s_effectName;
42 }
43
calculateEffectRect(Filter * filter)44 FloatRect SourceGraphic::calculateEffectRect(Filter* filter)
45 {
46 FloatRect clippedSourceRect = filter->sourceImageRect();
47 if (filter->sourceImageRect().x() < filter->filterRegion().x())
48 clippedSourceRect.setX(filter->filterRegion().x());
49 if (filter->sourceImageRect().y() < filter->filterRegion().y())
50 clippedSourceRect.setY(filter->filterRegion().y());
51 setSubRegion(clippedSourceRect);
52 return filter->filterRegion();
53 }
54
apply(Filter * filter)55 void SourceGraphic::apply(Filter* filter)
56 {
57 GraphicsContext* filterContext = getEffectContext();
58 if (!filterContext)
59 return;
60
61 filterContext->drawImage(filter->sourceImage()->image(), IntPoint());
62 }
63
dump()64 void SourceGraphic::dump()
65 {
66 }
67
68 } // namespace WebCore
69
70 #endif // ENABLE(FILTERS)
71