1 | // Copyright 2013 The Flutter 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 FLUTTER_FLOW_LAYERS_TRANSFORM_LAYER_H_ |
6 | #define FLUTTER_FLOW_LAYERS_TRANSFORM_LAYER_H_ |
7 | |
8 | #include "flutter/flow/layers/container_layer.h" |
9 | |
10 | namespace flutter { |
11 | |
12 | // Be careful that SkMatrix's default constructor doesn't initialize the matrix |
13 | // at all. Hence |set_transform| must be called with an initialized SkMatrix. |
14 | class TransformLayer : public ContainerLayer { |
15 | public: |
16 | explicit TransformLayer(const SkMatrix& transform) |
17 | : TransformLayer(SkM44(transform)) {} |
18 | explicit TransformLayer(const SkM44& transform); |
19 | |
20 | void Diff(DiffContext* context, const Layer* old_layer) override; |
21 | |
22 | void Preroll(PrerollContext* context) override; |
23 | |
24 | void Paint(PaintContext& context) const override; |
25 | |
26 | private: |
27 | SkM44 transform_; |
28 | |
29 | FML_DISALLOW_COPY_AND_ASSIGN(TransformLayer); |
30 | }; |
31 | |
32 | } // namespace flutter |
33 | |
34 | #endif // FLUTTER_FLOW_LAYERS_TRANSFORM_LAYER_H_ |
35 | |