| // Copyright 2013 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 CC_LAYERS_UI_RESOURCE_LAYER_H_ |
| #define CC_LAYERS_UI_RESOURCE_LAYER_H_ |
| |
| #include <memory> |
| |
| #include "cc/cc_export.h" |
| #include "cc/layers/layer.h" |
| #include "cc/resources/ui_resource_client.h" |
| #include "ui/gfx/geometry/rect.h" |
| |
| namespace cc { |
| |
| class LayerTreeHost; |
| |
| class CC_EXPORT UIResourceLayer : public Layer { |
| public: |
| static scoped_refptr<UIResourceLayer> Create(); |
| |
| UIResourceLayer(const UIResourceLayer&) = delete; |
| UIResourceLayer& operator=(const UIResourceLayer&) = delete; |
| |
| void PushPropertiesTo(LayerImpl* layer) override; |
| |
| void SetLayerTreeHost(LayerTreeHost* host) override; |
| |
| // Sets the resource. If they don't exist already, the shared UI resource and |
| // ID are generated and cached in a map in the associated UIResourceManager. |
| // Currently, this resource will never be released by the UIResourceManager. |
| void SetBitmap(const SkBitmap& skbitmap); |
| |
| // An alternative way of setting the resource where an ID is used directly. If |
| // you use this method, you are responsible for updating the ID if the layer |
| // moves between compositors. |
| void SetUIResourceId(UIResourceId resource_id); |
| |
| // Sets a UV transform to be used at draw time. Defaults to (0, 0) and (1, 1). |
| void SetUV(const gfx::PointF& top_left, const gfx::PointF& bottom_right); |
| |
| // Sets an opacity value per vertex. It will be multiplied by the layer |
| // opacity value. |
| void SetVertexOpacity(float bottom_left, |
| float top_left, |
| float top_right, |
| float bottom_right); |
| |
| protected: |
| UIResourceLayer(); |
| ~UIResourceLayer() override; |
| |
| bool HasDrawableContent() const override; |
| |
| UIResourceId resource_id() const { return resource_id_; } |
| |
| private: |
| std::unique_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) override; |
| void RecreateUIResourceIdFromBitmap(); |
| void SetUIResourceIdInternal(UIResourceId resource_id); |
| |
| // The resource ID will be zero when it's unset or when there's no associated |
| // LayerTreeHost. |
| UIResourceId resource_id_ = 0; |
| SkBitmap bitmap_; |
| |
| gfx::PointF uv_top_left_; |
| gfx::PointF uv_bottom_right_; |
| float vertex_opacity_[4]; |
| }; |
| |
| } // namespace cc |
| |
| #endif // CC_LAYERS_UI_RESOURCE_LAYER_H_ |