/*
* Copyright (C) 2012 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef WebFilterOperations_h
#define WebFilterOperations_h
#include "SkImageFilter.h"
#include "SkScalar.h"
#include "WebColor.h"
#include "WebPoint.h"
namespace blink {
// An ordered list of filter operations.
class WebFilterOperations {
public:
virtual ~WebFilterOperations() { }
virtual void appendGrayscaleFilter(float amount) = 0;
virtual void appendSepiaFilter(float amount) = 0;
virtual void appendSaturateFilter(float amount) = 0;
virtual void appendHueRotateFilter(float amount) = 0;
virtual void appendInvertFilter(float amount) = 0;
virtual void appendBrightnessFilter(float amount) = 0;
virtual void appendContrastFilter(float amount) = 0;
virtual void appendOpacityFilter(float amount)= 0;
virtual void appendBlurFilter(float amount) = 0;
virtual void appendDropShadowFilter(WebPoint offset, float stdDeviation, WebColor) = 0;
virtual void appendColorMatrixFilter(SkScalar matrix[20]) = 0;
virtual void appendZoomFilter(float amount, int inset) = 0;
virtual void appendSaturatingBrightnessFilter(float amount) = 0;
// This grabs a ref on the passed-in filter.
virtual void appendReferenceFilter(SkImageFilter*) = 0;
virtual void clear() = 0;
};
} // namespace blink
#endif // WebFilterOperations_h