1/*
2 * Copyright (C) 2012 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1.  Redistributions of source code must retain the above copyright
9 *     notice, this list of conditions and the following disclaimer.
10 * 2.  Redistributions in binary form must reproduce the above copyright
11 *     notice, this list of conditions and the following disclaimer in the
12 *     documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef WebFilterOperations_h
27#define WebFilterOperations_h
28
29#include "SkImageFilter.h"
30#include "SkScalar.h"
31#include "WebColor.h"
32#include "WebPoint.h"
33
34namespace blink {
35
36// An ordered list of filter operations.
37class WebFilterOperations {
38public:
39    virtual ~WebFilterOperations() { }
40
41    virtual void appendGrayscaleFilter(float amount) = 0;
42    virtual void appendSepiaFilter(float amount) = 0;
43    virtual void appendSaturateFilter(float amount) = 0;
44    virtual void appendHueRotateFilter(float amount) = 0;
45    virtual void appendInvertFilter(float amount) = 0;
46    virtual void appendBrightnessFilter(float amount) = 0;
47    virtual void appendContrastFilter(float amount) = 0;
48    virtual void appendOpacityFilter(float amount)= 0;
49    virtual void appendBlurFilter(float amount) = 0;
50    virtual void appendDropShadowFilter(WebPoint offset, float stdDeviation, WebColor) = 0;
51    virtual void appendColorMatrixFilter(SkScalar matrix[20]) = 0;
52    virtual void appendZoomFilter(float amount, int inset) = 0;
53    virtual void appendSaturatingBrightnessFilter(float amount) = 0;
54
55    // This grabs a ref on the passed-in filter.
56    virtual void appendReferenceFilter(SkImageFilter*) = 0;
57
58    virtual void clear() = 0;
59};
60
61} // namespace blink
62
63#endif // WebFilterOperations_h
64