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Side by Side Diff: third_party/WebKit/Source/core/style/FilterOperation.h

Issue 2812593005: Rename cleanup in comments in style/ directory. (Closed)
Patch Set: Created 3 years, 8 months ago
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1 /* 1 /*
2 * Copyright (C) 2011 Apple Inc. All rights reserved. 2 * Copyright (C) 2011 Apple Inc. All rights reserved.
3 * 3 *
4 * Redistribution and use in source and binary forms, with or without 4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions 5 * modification, are permitted provided that the following conditions
6 * are met: 6 * are met:
7 * 1. Redistributions of source code must retain the above copyright 7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer. 8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright 9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the 10 * notice, this list of conditions and the following disclaimer in the
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103 } 103 }
104 104
105 // True if the alpha channel of any pixel can change under this operation. 105 // True if the alpha channel of any pixel can change under this operation.
106 virtual bool AffectsOpacity() const { return false; } 106 virtual bool AffectsOpacity() const { return false; }
107 // True if the the value of one pixel can affect the value of another pixel 107 // True if the the value of one pixel can affect the value of another pixel
108 // under this operation, such as blur. 108 // under this operation, such as blur.
109 virtual bool MovesPixels() const { return false; } 109 virtual bool MovesPixels() const { return false; }
110 110
111 // Maps "forward" to determine which pixels in a destination rect are 111 // Maps "forward" to determine which pixels in a destination rect are
112 // affected by pixels in the source rect. 112 // affected by pixels in the source rect.
113 // See also FilterEffect::mapRect. 113 // See also FilterEffect::MapRect.
114 virtual FloatRect MapRect(const FloatRect& rect) const { return rect; } 114 virtual FloatRect MapRect(const FloatRect& rect) const { return rect; }
115 115
116 protected: 116 protected:
117 FilterOperation(OperationType type) : type_(type) {} 117 FilterOperation(OperationType type) : type_(type) {}
118 118
119 OperationType type_; 119 OperationType type_;
120 120
121 private: 121 private:
122 virtual FilterOperation* Blend(const FilterOperation* from, 122 virtual FilterOperation* Blend(const FilterOperation* from,
123 double progress) const = 0; 123 double progress) const = 0;
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338 BoxReflectFilterOperation(const BoxReflection& reflection) 338 BoxReflectFilterOperation(const BoxReflection& reflection)
339 : FilterOperation(BOX_REFLECT), reflection_(reflection) {} 339 : FilterOperation(BOX_REFLECT), reflection_(reflection) {}
340 340
341 BoxReflection reflection_; 341 BoxReflection reflection_;
342 }; 342 };
343 DEFINE_FILTER_OPERATION_TYPE_CASTS(BoxReflectFilterOperation, BOX_REFLECT); 343 DEFINE_FILTER_OPERATION_TYPE_CASTS(BoxReflectFilterOperation, BOX_REFLECT);
344 344
345 } // namespace blink 345 } // namespace blink
346 346
347 #endif // FilterOperation_h 347 #endif // FilterOperation_h
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