cc/layers/ui_resource_layer_impl.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CC_LAYERS_UI_RESOURCE_LAYER_IMPL_H_
   6 #define CC_LAYERS_UI_RESOURCE_LAYER_IMPL_H_
   7
   8 #include <string>
   9
  10 #include "cc/base/cc_export.h"
  11 #include "cc/layers/layer_impl.h"
  12 #include "cc/resources/resource_provider.h"
  13 #include "cc/resources/ui_resource_client.h"
  14 #include "ui/gfx/rect.h"
  15 #include "ui/gfx/size.h"
  16
  17 namespace base {
  18 class DictionaryValue;
  19 }
  20
  21 namespace cc {
  22
  23 class CC_EXPORT UIResourceLayerImpl : public LayerImpl {
  24  public:
  25   static scoped_ptr<UIResourceLayerImpl> Create(LayerTreeImpl* tree_impl,
  26                                                int id) {
  27     return make_scoped_ptr(new UIResourceLayerImpl(tree_impl, id));
  28   }
  29   virtual ~UIResourceLayerImpl();
  30
  31   void SetUIResourceId(UIResourceId uid);
  32
  33   void SetImageBounds(const gfx::Size& image_bounds);
  34
  35   // Sets a UV transform to be used at draw time. Defaults to (0, 0) and (1, 1).
  36   void SetUV(const gfx::PointF& top_left, const gfx::PointF& bottom_right);
  37
  38   // Sets an opacity value per vertex. It will be multiplied by the layer
  39   // opacity value.
  40   void SetVertexOpacity(const float vertex_opacity[4]);
  41
  42   virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl)
  43       override;
  44   virtual void PushPropertiesTo(LayerImpl* layer) override;
  45
  46   virtual bool WillDraw(DrawMode draw_mode,
  47                         ResourceProvider* resource_provider) override;
  48   virtual void AppendQuads(RenderPass* render_pass,
  49                            const Occlusion& occlusion_in_content_space,
  50                            AppendQuadsData* append_quads_data) override;
  51
  52   virtual base::DictionaryValue* LayerTreeAsJson() const override;
  53
  54  protected:
  55   UIResourceLayerImpl(LayerTreeImpl* tree_impl, int id);
  56
  57   // The size of the resource bitmap in pixels.
  58   gfx::Size image_bounds_;
  59
  60   UIResourceId ui_resource_id_;
  61
  62   gfx::PointF uv_top_left_;
  63   gfx::PointF uv_bottom_right_;
  64   float vertex_opacity_[4];
  65
  66  private:
  67   virtual const char* LayerTypeAsString() const override;
  68
  69   DISALLOW_COPY_AND_ASSIGN(UIResourceLayerImpl);
  70 };
  71
  72 }  // namespace cc
  73
  74 #endif  // CC_LAYERS_UI_RESOURCE_LAYER_IMPL_H_