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| 1 // Copyright 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef CC_LAYERS_NINE_PATCH_LAYER_H_ | 5 #ifndef CC_LAYERS_NINE_PATCH_LAYER_H_ |
| 6 #define CC_LAYERS_NINE_PATCH_LAYER_H_ | 6 #define CC_LAYERS_NINE_PATCH_LAYER_H_ |
| 7 | 7 |
| 8 #include "base/memory/scoped_ptr.h" | 8 #include "base/memory/scoped_ptr.h" |
| 9 #include "cc/base/cc_export.h" | 9 #include "cc/base/cc_export.h" |
| 10 #include "cc/layers/layer.h" | 10 #include "cc/layers/layer.h" |
| 11 #include "cc/resources/ui_resource_client.h" | 11 #include "cc/resources/image_layer_updater.h" |
| 12 #include "third_party/skia/include/core/SkBitmap.h" |
| 12 #include "ui/gfx/rect.h" | 13 #include "ui/gfx/rect.h" |
| 13 | 14 |
| 14 namespace cc { | 15 namespace cc { |
| 15 | 16 |
| 16 class LayerTreeHost; | 17 class ResourceUpdateQueue; |
| 17 class ScopedUIResource; | |
| 18 | 18 |
| 19 class CC_EXPORT NinePatchLayer : public Layer { | 19 class CC_EXPORT NinePatchLayer : public Layer { |
| 20 public: | 20 public: |
| 21 static scoped_refptr<NinePatchLayer> Create(); | 21 static scoped_refptr<NinePatchLayer> Create(); |
| 22 | 22 |
| 23 virtual bool DrawsContent() const OVERRIDE; | 23 virtual bool DrawsContent() const OVERRIDE; |
| 24 | 24 virtual void SetTexturePriorities(const PriorityCalculator& priority_calc) |
| 25 OVERRIDE; |
| 26 virtual bool Update(ResourceUpdateQueue* queue, |
| 27 const OcclusionTracker* occlusion) OVERRIDE; |
| 25 virtual void PushPropertiesTo(LayerImpl* layer) OVERRIDE; | 28 virtual void PushPropertiesTo(LayerImpl* layer) OVERRIDE; |
| 26 | 29 |
| 27 virtual void SetLayerTreeHost(LayerTreeHost* host) OVERRIDE; | |
| 28 | |
| 29 // |border| is the space around the center rectangular region in layer space | |
| 30 // (known as aperture in image space). |border.x()| and |border.y()| are the | |
| 31 // size of the left and top boundary, respectively. | |
| 32 // |border.width()-border.x()| and |border.height()-border.y()| are the size | |
| 33 // of the right and bottom boundary, respectively. | |
| 34 void SetBorder(gfx::Rect border); | |
| 35 | |
| 36 // aperture is in the pixel space of the bitmap resource and refers to | 30 // aperture is in the pixel space of the bitmap resource and refers to |
| 37 // the center patch of the ninepatch (which is unused in this | 31 // the center patch of the ninepatch (which is unused in this |
| 38 // implementation). We split off eight rects surrounding it and stick them | 32 // implementation). We split off eight rects surrounding it and stick them |
| 39 // on the edges of the layer. The corners are unscaled, the top and bottom | 33 // on the edges of the layer. The corners are unscaled, the top and bottom |
| 40 // rects are x-stretched to fit, and the left and right rects are | 34 // rects are x-stretched to fit, and the left and right rects are |
| 41 // y-stretched to fit. | 35 // y-stretched to fit. |
| 42 void SetBitmap(const SkBitmap& skbitmap, gfx::Rect aperture); | 36 void SetBitmap(const SkBitmap& bitmap, gfx::Rect aperture); |
| 43 | |
| 44 // An alternative way of setting the resource to allow for sharing. | |
| 45 void SetUIResourceId(UIResourceId resource_id, gfx::Rect aperture); | |
| 46 void SetFillCenter(bool fill_center); | |
| 47 | |
| 48 class UIResourceHolder { | |
| 49 public: | |
| 50 virtual UIResourceId id() = 0; | |
| 51 virtual ~UIResourceHolder(); | |
| 52 }; | |
| 53 | 37 |
| 54 private: | 38 private: |
| 55 NinePatchLayer(); | 39 NinePatchLayer(); |
| 56 virtual ~NinePatchLayer(); | 40 virtual ~NinePatchLayer(); |
| 57 virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) | 41 virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) |
| 58 OVERRIDE; | 42 OVERRIDE; |
| 59 void RecreateUIResourceHolder(); | |
| 60 | 43 |
| 61 gfx::Rect border_; | 44 void CreateUpdaterIfNeeded(); |
| 62 bool fill_center_; | 45 void CreateResource(); |
| 63 scoped_ptr<UIResourceHolder> ui_resource_holder_; | 46 |
| 47 scoped_refptr<ImageLayerUpdater> updater_; |
| 48 scoped_ptr<LayerUpdater::Resource> resource_; |
| 49 |
| 64 SkBitmap bitmap_; | 50 SkBitmap bitmap_; |
| 51 bool bitmap_dirty_; |
| 65 | 52 |
| 66 // The transparent center region that shows the parent layer's contents in | 53 // The transparent center region that shows the parent layer's contents in |
| 67 // image space. | 54 // image space. |
| 68 gfx::Rect image_aperture_; | 55 gfx::Rect image_aperture_; |
| 69 | 56 |
| 70 DISALLOW_COPY_AND_ASSIGN(NinePatchLayer); | 57 DISALLOW_COPY_AND_ASSIGN(NinePatchLayer); |
| 71 }; | 58 }; |
| 72 | 59 |
| 73 } // namespace cc | 60 } // namespace cc |
| 74 | 61 |
| 75 #endif // CC_LAYERS_NINE_PATCH_LAYER_H_ | 62 #endif // CC_LAYERS_NINE_PATCH_LAYER_H_ |
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