| /* |
| * Copyright 2020 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "modules/skottie/src/effects/Effects.h" |
| |
| #include "modules/skottie/src/SkottieJson.h" |
| #include "modules/skottie/src/SkottieValue.h" |
| #include "modules/sksg/include/SkSGTransform.h" |
| |
| namespace skottie::internal { |
| |
| namespace { |
| |
| class CornerPinAdapter final : public AnimatablePropertyContainer { |
| public: |
| static sk_sp<CornerPinAdapter> Make(const skjson::ArrayValue& jprops, |
| const AnimationBuilder& abuilder, |
| const SkSize& layer_size) { |
| return sk_sp<CornerPinAdapter>(new CornerPinAdapter(jprops, abuilder, layer_size)); |
| } |
| |
| auto& node() const { return fMatrixNode; } |
| |
| private: |
| CornerPinAdapter(const skjson::ArrayValue& jprops, |
| const AnimationBuilder& abuilder, |
| const SkSize& layer_size) |
| : fMatrixNode(sksg::Matrix<SkMatrix>::Make(SkMatrix::I())) |
| , fLayerSize(layer_size) { |
| enum : size_t { |
| kUpperLeft_Index = 0, |
| kUpperRight_Index = 1, |
| kLowerLeft_Index = 2, |
| kLowerRight_Index = 3, |
| }; |
| |
| EffectBinder(jprops, abuilder, this) |
| .bind( kUpperLeft_Index, fUL) |
| .bind(kUpperRight_Index, fUR) |
| .bind( kLowerLeft_Index, fLL) |
| .bind(kLowerRight_Index, fLR); |
| } |
| |
| void onSync() override { |
| const SkPoint src[] = {{ 0, 0}, |
| {fLayerSize.width(), 0}, |
| {fLayerSize.width(), fLayerSize.height()}, |
| { 0, fLayerSize.height()}}, |
| |
| dst[] = {{ fUL.x, fUL.y}, |
| { fUR.x, fUR.y}, |
| { fLR.x, fLR.y}, |
| { fLL.x, fLL.y}}; |
| static_assert(SK_ARRAY_COUNT(src) == SK_ARRAY_COUNT(dst)); |
| |
| SkMatrix m; |
| if (m.setPolyToPoly(src, dst, SK_ARRAY_COUNT(src))) { |
| fMatrixNode->setMatrix(m); |
| } |
| } |
| |
| const sk_sp<sksg::Matrix<SkMatrix>> fMatrixNode; |
| const SkSize fLayerSize; |
| |
| Vec2Value fUL, |
| fLL, |
| fUR, |
| fLR; |
| }; |
| |
| } // namespace |
| |
| sk_sp<sksg::RenderNode> EffectBuilder::attachCornerPinEffect(const skjson::ArrayValue& jprops, |
| sk_sp<sksg::RenderNode> layer) const { |
| sk_sp<sksg::Matrix<SkMatrix>> matrix_node = |
| fBuilder->attachDiscardableAdapter<CornerPinAdapter>(jprops, *fBuilder, fLayerSize); |
| |
| return sksg::TransformEffect::Make(std::move(layer), std::move(matrix_node)); |
| } |
| |
| } // namespace skottie::internal |