cc/layers/heads_up_display_layer.h

   1 // Copyright 2012 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_HEADS_UP_DISPLAY_LAYER_H_
   6 #define CC_LAYERS_HEADS_UP_DISPLAY_LAYER_H_
   7
   8 #include <string>
   9
  10 #include "base/memory/scoped_ptr.h"
  11 #include "cc/base/cc_export.h"
  12 #include "cc/layers/layer.h"
  13
  14 namespace cc {
  15
  16 class CC_EXPORT HeadsUpDisplayLayer : public Layer {
  17  public:
  18   static scoped_refptr<HeadsUpDisplayLayer> Create(
  19       const LayerSettings& settings);
  20
  21   void PrepareForCalculateDrawProperties(
  22       const gfx::Size& device_viewport, float device_scale_factor);
  23
  24   scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) override;
  25
  26  protected:
  27   explicit HeadsUpDisplayLayer(const LayerSettings& settings);
  28   bool HasDrawableContent() const override;
  29
  30  private:
  31   ~HeadsUpDisplayLayer() override;
  32
  33   DISALLOW_COPY_AND_ASSIGN(HeadsUpDisplayLayer);
  34 };
  35
  36 }  // namespace cc
  37
  38 #endif  // CC_LAYERS_HEADS_UP_DISPLAY_LAYER_H_