flutter_flutter/flow/layers/opacity_layer.h
Adam Barth b9ff394182 Break dependency from Layer to PaintContext (#2609)
Instead, make Layer::Paint take a new PaintContext that has just exactly
the state that it needs, mirroring PrerollContext. Also, rename
PaintContext to CompositorContext because it holds the context for the
whole compositor.
2016-04-21 23:05:41 -07:00

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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef FLOW_LAYERS_OPACITY_LAYER_H_
#define FLOW_LAYERS_OPACITY_LAYER_H_
#include "flow/layers/container_layer.h"
namespace flow {
class OpacityLayer : public ContainerLayer {
public:
OpacityLayer();
~OpacityLayer() override;
void set_alpha(int alpha) { alpha_ = alpha; }
protected:
void Paint(PaintContext& context) override;
private:
int alpha_;
DISALLOW_COPY_AND_ASSIGN(OpacityLayer);
};
} // namespace flow
#endif // FLOW_LAYERS_OPACITY_LAYER_H_