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      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_NINE_PATCH_LAYER_IMPL_H_
      6 #define CC_LAYERS_NINE_PATCH_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 "ui/gfx/rect.h"
     14 #include "ui/gfx/size.h"
     15 
     16 namespace base {
     17 class DictionaryValue;
     18 }
     19 
     20 namespace cc {
     21 
     22 class CC_EXPORT NinePatchLayerImpl : public LayerImpl {
     23  public:
     24   static scoped_ptr<NinePatchLayerImpl> Create(LayerTreeImpl* tree_impl,
     25                                                int id) {
     26     return make_scoped_ptr(new NinePatchLayerImpl(tree_impl, id));
     27   }
     28   virtual ~NinePatchLayerImpl();
     29 
     30   void SetResourceId(unsigned id) { resource_id_ = id; }
     31   void SetLayout(gfx::Size image_bounds, gfx::Rect aperture);
     32 
     33   virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl)
     34       OVERRIDE;
     35   virtual void PushPropertiesTo(LayerImpl* layer) OVERRIDE;
     36 
     37   virtual bool WillDraw(DrawMode draw_mode,
     38                         ResourceProvider* resource_provider) OVERRIDE;
     39   virtual void AppendQuads(QuadSink* quad_sink,
     40                            AppendQuadsData* append_quads_data) OVERRIDE;
     41   virtual ResourceProvider::ResourceId ContentsResourceId() const OVERRIDE;
     42   virtual void DidLoseOutputSurface() OVERRIDE;
     43 
     44   virtual base::DictionaryValue* LayerTreeAsJson() const OVERRIDE;
     45 
     46  protected:
     47   NinePatchLayerImpl(LayerTreeImpl* tree_impl, int id);
     48 
     49  private:
     50   virtual const char* LayerTypeAsString() const OVERRIDE;
     51 
     52   // The size of the NinePatch bitmap in pixels.
     53   gfx::Size image_bounds_;
     54 
     55   // The transparent center region that shows the parent layer's contents in
     56   // image space.
     57   gfx::Rect image_aperture_;
     58 
     59   ResourceProvider::ResourceId resource_id_;
     60 
     61   DISALLOW_COPY_AND_ASSIGN(NinePatchLayerImpl);
     62 };
     63 
     64 }  // namespace cc
     65 
     66 #endif  // CC_LAYERS_NINE_PATCH_LAYER_IMPL_H_
     67