| // Copyright 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CC_LAYERS_NINE_PATCH_LAYER_IMPL_H_ |
| #define CC_LAYERS_NINE_PATCH_LAYER_IMPL_H_ |
| |
| #include <string> |
| |
| #include "cc/base/cc_export.h" |
| #include "cc/layers/layer_impl.h" |
| #include "cc/layers/ui_resource_layer_impl.h" |
| #include "cc/resources/resource_provider.h" |
| #include "cc/resources/ui_resource_client.h" |
| #include "ui/gfx/geometry/rect.h" |
| #include "ui/gfx/geometry/size.h" |
| |
| namespace base { |
| class DictionaryValue; |
| } |
| |
| namespace cc { |
| |
| class CC_EXPORT NinePatchLayerImpl : public UIResourceLayerImpl { |
| public: |
| static scoped_ptr<NinePatchLayerImpl> Create(LayerTreeImpl* tree_impl, |
| int id) { |
| return make_scoped_ptr(new NinePatchLayerImpl(tree_impl, id)); |
| } |
| ~NinePatchLayerImpl() override; |
| |
| // The bitmap stretches out the bounds of the layer. The following picture |
| // illustrates the parameters associated with the dimensions. |
| // |
| // Layer space layout Bitmap space layout |
| // |
| // ------------------------ ~~~~~~~~~~ W ~~~~~~~~~~ |
| // | : | : : | |
| // | C | : Y | |
| // | : | : : | |
| // | ------------ | :~~X~~------------ | |
| // | | | | : | : | |
| // | | | | : | : | |
| // |~~A~~| |~~B~~| H | Q | |
| // | | | | : | : | |
| // | ------------ | : ~~~~~P~~~~~ | |
| // | : | : | |
| // | D | : | |
| // | : | : | |
| // ------------------------ ------------------------ |
| // |
| // |image_bounds| = (W, H) |
| // |image_aperture| = (X, Y, P, Q) |
| // |border| = (A, C, A + B, C + D) |
| // |fill_center| indicates whether to draw the center quad or not. |
| void SetLayout(const gfx::Rect& image_aperture, |
| const gfx::Rect& border, |
| bool fill_center); |
| |
| scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) override; |
| void PushPropertiesTo(LayerImpl* layer) override; |
| |
| void AppendQuads(RenderPass* render_pass, |
| AppendQuadsData* append_quads_data) override; |
| |
| base::DictionaryValue* LayerTreeAsJson() const override; |
| |
| protected: |
| NinePatchLayerImpl(LayerTreeImpl* tree_impl, int id); |
| |
| private: |
| const char* LayerTypeAsString() const override; |
| |
| void CheckGeometryLimitations(); |
| |
| // The transparent center region that shows the parent layer's contents in |
| // image space. |
| gfx::Rect image_aperture_; |
| |
| // An inset border that the patches will be mapped to. |
| gfx::Rect border_; |
| |
| bool fill_center_; |
| |
| DISALLOW_COPY_AND_ASSIGN(NinePatchLayerImpl); |
| }; |
| |
| } // namespace cc |
| |
| #endif // CC_LAYERS_NINE_PATCH_LAYER_IMPL_H_ |