| 1 | // Copyright 2013 The Flutter Authors. All rights reserved. |
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| 2 | // Use of this source code is governed by a BSD-style license that can be |
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| 3 | // found in the LICENSE file. |
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| 4 | |
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| 5 | #ifndef FLUTTER_FLOW_LAYERS_TRANSFORM_LAYER_H_ |
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| 6 | #define FLUTTER_FLOW_LAYERS_TRANSFORM_LAYER_H_ |
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| 7 | |
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| 8 | #include "flutter/flow/layers/container_layer.h" |
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| 9 | |
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| 10 | namespace flutter { |
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| 11 | |
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| 12 | // Be careful that SkMatrix's default constructor doesn't initialize the matrix |
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| 13 | // at all. Hence |set_transform| must be called with an initialized SkMatrix. |
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| 14 | class TransformLayer : public ContainerLayer { |
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| 15 | public: |
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| 16 | explicit TransformLayer(const SkMatrix& transform) |
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| 17 | : TransformLayer(SkM44(transform)) {} |
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| 18 | explicit TransformLayer(const SkM44& transform); |
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| 19 | |
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| 20 | void Diff(DiffContext* context, const Layer* old_layer) override; |
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| 21 | |
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| 22 | void Preroll(PrerollContext* context) override; |
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| 23 | |
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| 24 | void Paint(PaintContext& context) const override; |
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| 25 | |
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| 26 | private: |
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| 27 | SkM44 transform_; |
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| 28 | |
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| 29 | FML_DISALLOW_COPY_AND_ASSIGN(TransformLayer); |
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| 30 | }; |
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| 31 | |
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| 32 | } // namespace flutter |
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| 33 | |
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| 34 | #endif // FLUTTER_FLOW_LAYERS_TRANSFORM_LAYER_H_ |
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| 35 | |
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