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// Copyright 2013 The Flutter 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 FLUTTER_FLOW_LAYERS_CONTAINER_LAYER_H_
#define FLUTTER_FLOW_LAYERS_CONTAINER_LAYER_H_
#include <vector>
#include "flutter/flow/layers/layer.h"
namespace flutter {
class ContainerLayer : public Layer {
public:
ContainerLayer();
void Diff(DiffContext* context, const Layer* old_layer) override;
void PreservePaintRegion(DiffContext* context) override;
virtual void Add(std::shared_ptr<Layer> layer);
void Preroll(PrerollContext* context) override;
void Paint(PaintContext& context) const override;
const std::vector<std::shared_ptr<Layer>>& layers() const { return layers_; }
virtual void DiffChildren(DiffContext* context,
const ContainerLayer* old_layer);
void PaintChildren(PaintContext& context) const override;
const ContainerLayer* as_container_layer() const override { return this; }
const SkRect& child_paint_bounds() const { return child_paint_bounds_; }
void set_child_paint_bounds(const SkRect& bounds) {
child_paint_bounds_ = bounds;
}
int children_renderable_state_flags() const {
return children_renderable_state_flags_;
}
void set_children_renderable_state_flags(int flags) {
children_renderable_state_flags_ = flags;
}
protected:
void PrerollChildren(PrerollContext* context, SkRect* child_paint_bounds);
private:
std::vector<std::shared_ptr<Layer>> layers_;
SkRect child_paint_bounds_;
int children_renderable_state_flags_ = 0;
FML_DISALLOW_COPY_AND_ASSIGN(ContainerLayer);
};
} // namespace flutter
#endif // FLUTTER_FLOW_LAYERS_CONTAINER_LAYER_H_