nine_patch_layer_impl.h revision 868fa2fe829687343ffae624259930155e16dbd8 
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
16namespace base {
17class DictionaryValue;
18}
19
20namespace cc {
21
22class 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 DumpLayerProperties(std::string* str, int indent) const OVERRIDE;
43  virtual void DidLoseOutputSurface() OVERRIDE;
44
45  virtual base::DictionaryValue* LayerTreeAsJson() const OVERRIDE;
46
47 protected:
48  NinePatchLayerImpl(LayerTreeImpl* tree_impl, int id);
49
50 private:
51  virtual const char* LayerTypeAsString() const OVERRIDE;
52
53  // The size of the NinePatch bitmap in pixels.
54  gfx::Size image_bounds_;
55
56  // The transparent center region that shows the parent layer's contents in
57  // image space.
58  gfx::Rect image_aperture_;
59
60  ResourceProvider::ResourceId resource_id_;
61
62  DISALLOW_COPY_AND_ASSIGN(NinePatchLayerImpl);
63};
64
65}  // namespace cc
66
67#endif  // CC_LAYERS_NINE_PATCH_LAYER_IMPL_H_
68