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/*
* Copyright (C) 2013 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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 THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_DRAW_LOOPER_BUILDER_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_DRAW_LOOPER_BUILDER_H_
#include "base/macros.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
#include "third_party/skia/include/core/SkRefCnt.h"
#include "third_party/skia/include/effects/SkLayerDrawLooper.h"
class SkDrawLooper;
namespace blink {
class Color;
class FloatSize;
class PLATFORM_EXPORT DrawLooperBuilder final {
STACK_ALLOCATED();
public:
enum ShadowTransformMode {
kShadowRespectsTransforms,
kShadowIgnoresTransforms
};
enum ShadowAlphaMode { kShadowRespectsAlpha, kShadowIgnoresAlpha };
DrawLooperBuilder();
~DrawLooperBuilder();
// Creates the SkDrawLooper and passes ownership to the caller. The builder
// should not be used any more after calling this method.
sk_sp<SkDrawLooper> DetachDrawLooper();
void AddUnmodifiedContent();
void AddShadow(const FloatSize& offset,
float blur,
const Color&,
ShadowTransformMode = kShadowRespectsTransforms,
ShadowAlphaMode = kShadowRespectsAlpha);
private:
SkLayerDrawLooper::Builder sk_draw_looper_builder_;
// Implementing the copy constructor properly would require writing code to
// copy the underlying SkLayerDrawLooper::Builder.
DISALLOW_COPY_AND_ASSIGN(DrawLooperBuilder);
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_DRAW_LOOPER_BUILDER_H_
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