| // 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. |
| |
| #include "ui/compositor/transform_recorder.h" |
| |
| #include "cc/playback/display_item_list.h" |
| #include "cc/playback/transform_display_item.h" |
| #include "ui/compositor/paint_context.h" |
| |
| namespace ui { |
| |
| TransformRecorder::TransformRecorder(const PaintContext& context) |
| : context_(context), transformed_(false) {} |
| |
| TransformRecorder::~TransformRecorder() { |
| if (transformed_) |
| context_.list_->CreateAndAppendItem<cc::EndTransformDisplayItem>( |
| bounds_in_layer_); |
| } |
| |
| void TransformRecorder::Transform(const gfx::Transform& transform, |
| const gfx::Size& size_in_context) { |
| DCHECK(!transformed_); |
| bounds_in_layer_ = context_.ToLayerSpaceBounds(size_in_context); |
| context_.list_->CreateAndAppendItem<cc::TransformDisplayItem>( |
| bounds_in_layer_, transform); |
| transformed_ = true; |
| } |
| |
| } // namespace ui |
