1/*
2 * Copyright (C) Research In Motion Limited 2011. All rights reserved.
3 * Copyright (C) 2013 Google Inc. All rights reserved.
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#ifndef FEDropShadow_h
22#define FEDropShadow_h
23
24#include "platform/graphics/Color.h"
25#include "platform/graphics/filters/Filter.h"
26#include "platform/graphics/filters/FilterEffect.h"
27
28namespace blink {
29
30class PLATFORM_EXPORT FEDropShadow : public FilterEffect {
31public:
32    static PassRefPtr<FEDropShadow> create(Filter*, float, float, float, float, const Color&, float);
33
34    float stdDeviationX() const { return m_stdX; }
35    void setStdDeviationX(float stdX) { m_stdX = stdX; }
36
37    float stdDeviationY() const { return m_stdY; }
38    void setStdDeviationY(float stdY) { m_stdY = stdY; }
39
40    float dx() const { return m_dx; }
41    void setDx(float dx) { m_dx = dx; }
42
43    float dy() const { return m_dy; }
44    void setDy(float dy) { m_dy = dy; }
45
46    Color shadowColor() const { return m_shadowColor; }
47    void setShadowColor(const Color& shadowColor) { m_shadowColor = shadowColor; }
48
49    float shadowOpacity() const { return m_shadowOpacity; }
50    void setShadowOpacity(float shadowOpacity) { m_shadowOpacity = shadowOpacity; }
51
52    virtual FloatRect mapRect(const FloatRect&, bool forward = true) OVERRIDE FINAL;
53
54    virtual TextStream& externalRepresentation(TextStream&, int indention) const OVERRIDE;
55    virtual PassRefPtr<SkImageFilter> createImageFilter(SkiaImageFilterBuilder*) OVERRIDE;
56
57private:
58    FEDropShadow(Filter*, float, float, float, float, const Color&, float);
59
60    virtual void applySoftware() OVERRIDE;
61
62    float m_stdX;
63    float m_stdY;
64    float m_dx;
65    float m_dy;
66    Color m_shadowColor;
67    float m_shadowOpacity;
68};
69
70} // namespace blink
71
72#endif // FEDropShadow_h
73