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d117ac979c
* Remove erroneous ChildView opacity * Wire frame metrics through contexts * Maintain layer stack inside of SceneBuilder * Remove EnsureSingleChild * Centralize system-composite and elevation logic * Wire up OpacityLayer to Scenic
35 lines
978 B
C++
35 lines
978 B
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef FLUTTER_FLOW_LAYERS_ELEVATED_CONTAINER_LAYER_H_
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#define FLUTTER_FLOW_LAYERS_ELEVATED_CONTAINER_LAYER_H_
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#include "flutter/flow/layers/container_layer.h"
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namespace flutter {
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class ElevatedContainerLayer : public ContainerLayer {
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public:
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ElevatedContainerLayer(float elevation);
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~ElevatedContainerLayer() override = default;
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void Preroll(PrerollContext* context, const SkMatrix& matrix) override;
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float elevation() const { return clamped_elevation_; }
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float total_elevation() const {
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return parent_elevation_ + clamped_elevation_;
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}
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private:
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float parent_elevation_ = 0.0f;
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float elevation_ = 0.0f;
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float clamped_elevation_ = 0.0f;
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FML_DISALLOW_COPY_AND_ASSIGN(ElevatedContainerLayer);
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};
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} // namespace flutter
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#endif // FLUTTER_FLOW_LAYERS_ELEVATED_CONTAINER_LAYER_H_
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