| // Copyright 2011 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_RESOURCES_CONTENT_LAYER_UPDATER_H_ |
| #define CC_RESOURCES_CONTENT_LAYER_UPDATER_H_ |
| |
| #include "cc/base/cc_export.h" |
| #include "cc/resources/layer_updater.h" |
| #include "ui/gfx/rect.h" |
| |
| class SkCanvas; |
| |
| namespace cc { |
| |
| class LayerPainter; |
| class RenderingStatsInstrumentation; |
| |
| // Base class for BitmapContentLayerUpdater and |
| // SkPictureContentLayerUpdater that reduces code duplication between |
| // their respective PaintContents implementations. |
| class CC_EXPORT ContentLayerUpdater : public LayerUpdater { |
| public: |
| void set_rendering_stats_instrumentation(RenderingStatsInstrumentation* rsi); |
| virtual void SetOpaque(bool opaque) OVERRIDE; |
| virtual void SetFillsBoundsCompletely(bool fills_bounds) OVERRIDE; |
| |
| protected: |
| ContentLayerUpdater(scoped_ptr<LayerPainter> painter, |
| RenderingStatsInstrumentation* stats_instrumentation, |
| int layer_id); |
| virtual ~ContentLayerUpdater(); |
| |
| void PaintContents(SkCanvas* canvas, |
| const gfx::Rect& content_rect, |
| float contents_width_scale, |
| float contents_height_scale, |
| gfx::Rect* resulting_opaque_rect); |
| gfx::Rect content_rect() const { return content_rect_; } |
| |
| bool layer_is_opaque() const { return layer_is_opaque_; } |
| bool layer_fills_bounds_completely() const { |
| return layer_fills_bounds_completely_; |
| } |
| |
| RenderingStatsInstrumentation* rendering_stats_instrumentation_; |
| int layer_id_; |
| |
| // True when it is known that all output pixels will be opaque. |
| bool layer_is_opaque_; |
| // True when it is known that all output pixels will be filled. |
| bool layer_fills_bounds_completely_; |
| |
| private: |
| gfx::Rect content_rect_; |
| scoped_ptr<LayerPainter> painter_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ContentLayerUpdater); |
| }; |
| |
| } // namespace cc |
| |
| #endif // CC_RESOURCES_CONTENT_LAYER_UPDATER_H_ |