| OLD | NEW |
| (Empty) |
| 1 // Copyright 2013 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 WEBKIT_COMPOSITOR_BINDINGS_WEB_LAYER_IMPL_FIXED_BOUNDS_H_ | |
| 6 #define WEBKIT_COMPOSITOR_BINDINGS_WEB_LAYER_IMPL_FIXED_BOUNDS_H_ | |
| 7 | |
| 8 #include "ui/gfx/size.h" | |
| 9 #include "ui/gfx/transform.h" | |
| 10 #include "webkit/compositor_bindings/web_layer_impl.h" | |
| 11 | |
| 12 namespace webkit { | |
| 13 | |
| 14 // A special implementation of WebLayerImpl for layers that its contents | |
| 15 // need to be automatically scaled when the bounds changes. The compositor | |
| 16 // can efficiently handle the bounds change of such layers if the bounds | |
| 17 // is fixed to a given value and the change of bounds are converted to | |
| 18 // transformation scales. | |
| 19 class WebLayerImplFixedBounds : public WebLayerImpl { | |
| 20 public: | |
| 21 WEBKIT_COMPOSITOR_BINDINGS_EXPORT WebLayerImplFixedBounds(); | |
| 22 WEBKIT_COMPOSITOR_BINDINGS_EXPORT explicit WebLayerImplFixedBounds( | |
| 23 scoped_refptr<cc::Layer>); | |
| 24 virtual ~WebLayerImplFixedBounds(); | |
| 25 | |
| 26 // WebLayerImpl overrides. | |
| 27 virtual void invalidateRect(const WebKit::WebFloatRect& rect); | |
| 28 virtual void setAnchorPoint(const WebKit::WebFloatPoint& anchor_point); | |
| 29 virtual void setBounds(const WebKit::WebSize& bounds); | |
| 30 virtual WebKit::WebSize bounds() const; | |
| 31 virtual void setSublayerTransform(const SkMatrix44& transform); | |
| 32 virtual SkMatrix44 sublayerTransform() const; | |
| 33 virtual void setTransform(const SkMatrix44& transform); | |
| 34 virtual SkMatrix44 transform() const; | |
| 35 | |
| 36 WEBKIT_COMPOSITOR_BINDINGS_EXPORT void SetFixedBounds(gfx::Size bounds); | |
| 37 | |
| 38 protected: | |
| 39 void SetTransformInternal(const gfx::Transform& transform); | |
| 40 void SetSublayerTransformInternal(const gfx::Transform& transform); | |
| 41 void UpdateLayerBoundsAndTransform(); | |
| 42 | |
| 43 gfx::Transform original_sublayer_transform_; | |
| 44 gfx::Transform original_transform_; | |
| 45 gfx::Size original_bounds_; | |
| 46 gfx::Size fixed_bounds_; | |
| 47 | |
| 48 private: | |
| 49 DISALLOW_COPY_AND_ASSIGN(WebLayerImplFixedBounds); | |
| 50 }; | |
| 51 | |
| 52 } // namespace webkit | |
| 53 | |
| 54 #endif // WEBKIT_COMPOSITOR_BINDINGS_WEB_LAYER_IMPL_FIXED_BOUNDS_H_ | |
| OLD | NEW |