| // Copyright 2015 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 UI_COMPOSITOR_TRANSFORM_RECORDER_H_ |
| #define UI_COMPOSITOR_TRANSFORM_RECORDER_H_ |
| |
| #include "base/macros.h" |
| #include "ui/compositor/compositor_export.h" |
| |
| namespace cc { |
| class DisplayItem; |
| class DisplayItemList; |
| } |
| |
| namespace gfx { |
| class Transform; |
| } |
| |
| namespace ui { |
| class PaintContext; |
| |
| // A class to provide scoped transforms of painting to a DisplayItemList. The |
| // transform provided will be applied to any DisplayItems added to the |
| // DisplayItemList while this object is alive. In other words, any nested |
| // recorders will be transformed. |
| class COMPOSITOR_EXPORT TransformRecorder { |
| public: |
| explicit TransformRecorder(const PaintContext& context); |
| ~TransformRecorder(); |
| |
| void Transform(const gfx::Transform& transform); |
| |
| private: |
| const PaintContext& context_; |
| bool transformed_; |
| |
| DISALLOW_COPY_AND_ASSIGN(TransformRecorder); |
| }; |
| |
| } // namespace ui |
| |
| #endif // UI_COMPOSITOR_TRANSFORM_RECORDER_H_ |