blob: 33cf724bcd25709ecc03139648bd1de8fc5a828a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
/*
* Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef Filter_h
#define Filter_h
#if ENABLE(FILTERS)
#include "FloatRect.h"
#include "FloatSize.h"
#include "ImageBuffer.h"
#include <wtf/PassRefPtr.h>
#include <wtf/RefCounted.h>
#include <wtf/RefPtr.h>
#include <wtf/text/StringHash.h>
namespace WebCore {
class FilterEffect;
class Filter : public RefCounted<Filter> {
public:
virtual ~Filter() { }
void setSourceImage(PassOwnPtr<ImageBuffer> sourceImage) { m_sourceImage = sourceImage; }
ImageBuffer* sourceImage() { return m_sourceImage.get(); }
FloatSize filterResolution() const { return m_filterResolution; }
void setFilterResolution(const FloatSize& filterResolution) { m_filterResolution = filterResolution; }
virtual float applyHorizontalScale(float value) const { return value * m_filterResolution.width(); }
virtual float applyVerticalScale(float value) const { return value * m_filterResolution.height(); }
virtual FloatRect sourceImageRect() const = 0;
virtual FloatRect filterRegion() const = 0;
virtual FloatPoint mapAbsolutePointToLocalPoint(const FloatPoint&) const { return FloatPoint(); }
virtual FloatRect filterRegionInUserSpace() const { return FloatRect(); }
virtual bool effectBoundingBoxMode() const = 0;
private:
OwnPtr<ImageBuffer> m_sourceImage;
FloatSize m_filterResolution;
};
} // namespace WebCore
#endif // ENABLE(FILTERS)
#endif // Filter_h
|
