| /* |
| * Copyright 2018 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkottieUtils_DEFINED |
| #define SkottieUtils_DEFINED |
| |
| #include "SkColor.h" |
| #include "Skottie.h" |
| #include "SkottieProperty.h" |
| #include "SkString.h" |
| #include "SkTHash.h" |
| |
| #include <memory> |
| #include <string> |
| #include <unordered_map> |
| #include <vector> |
| |
| class SkAnimCodecPlayer; |
| class SkData; |
| class SkImage; |
| |
| namespace skottie_utils { |
| |
| class MultiFrameImageAsset final : public skottie::ImageAsset { |
| public: |
| static sk_sp<MultiFrameImageAsset> Make(sk_sp<SkData>); |
| |
| bool isMultiFrame() override; |
| |
| sk_sp<SkImage> getFrame(float t) override; |
| |
| private: |
| explicit MultiFrameImageAsset(std::unique_ptr<SkAnimCodecPlayer>); |
| |
| std::unique_ptr<SkAnimCodecPlayer> fPlayer; |
| |
| using INHERITED = skottie::ImageAsset; |
| }; |
| |
| class FileResourceProvider final : public skottie::ResourceProvider { |
| public: |
| static sk_sp<FileResourceProvider> Make(SkString base_dir); |
| |
| sk_sp<SkData> load(const char resource_path[], const char resource_name[]) const override; |
| |
| sk_sp<skottie::ImageAsset> loadImageAsset(const char[], const char []) const override; |
| |
| private: |
| explicit FileResourceProvider(SkString); |
| |
| const SkString fDir; |
| |
| using INHERITED = skottie::ResourceProvider; |
| }; |
| |
| /** |
| * CustomPropertyManager implements a property management scheme where color/opacity/transform |
| * attributes are grouped and manipulated by name (one-to-many mapping). |
| * |
| * - setters apply the value to all properties in a named group |
| * |
| * - getters return all the managed property groups, and the first value within each of them |
| * (unchecked assumption: all properties within the same group have the same value) |
| * |
| * Use CustomPropertyManagerBuilder to filter nodes at animation build time, and instantiate a |
| * CustomPropertyManager. |
| */ |
| class CustomPropertyManager final { |
| public: |
| ~CustomPropertyManager(); |
| |
| using PropKey = std::string; |
| |
| std::vector<PropKey> getColorProps() const; |
| skottie::ColorPropertyValue getColor(const PropKey&) const; |
| bool setColor(const PropKey&, const skottie::ColorPropertyValue&); |
| |
| std::vector<PropKey> getOpacityProps() const; |
| skottie::OpacityPropertyValue getOpacity(const PropKey&) const; |
| bool setOpacity(const PropKey&, const skottie::OpacityPropertyValue&); |
| |
| std::vector<PropKey> getTransformProps() const; |
| skottie::TransformPropertyValue getTransform(const PropKey&) const; |
| bool setTransform(const PropKey&, const skottie::TransformPropertyValue&); |
| |
| private: |
| friend class CustomPropertyManagerBuilder; |
| |
| template <typename T> |
| using PropGroup = std::vector<std::unique_ptr<T>>; |
| |
| template <typename T> |
| using PropMap = std::unordered_map<PropKey, PropGroup<T>>; |
| |
| template <typename T> |
| std::vector<PropKey> getProps(const PropMap<T>& container) const; |
| |
| template <typename V, typename T> |
| V get(const PropKey&, const PropMap<T>& container) const; |
| |
| template <typename V, typename T> |
| bool set(const PropKey&, const V&, const PropMap<T>& container); |
| |
| CustomPropertyManager(PropMap<skottie::ColorPropertyHandle>, |
| PropMap<skottie::OpacityPropertyHandle>, |
| PropMap<skottie::TransformPropertyHandle>); |
| |
| PropMap<skottie::ColorPropertyHandle> fColorMap; |
| PropMap<skottie::OpacityPropertyHandle> fOpacityMap; |
| PropMap<skottie::TransformPropertyHandle> fTransformMap; |
| }; |
| |
| /** |
| * A builder for CustomPropertyManager. Only accepts node names starting with '$'. |
| */ |
| class CustomPropertyManagerBuilder final : public skottie::PropertyObserver { |
| public: |
| CustomPropertyManagerBuilder(); |
| ~CustomPropertyManagerBuilder() override; |
| |
| std::unique_ptr<CustomPropertyManager> build(); |
| |
| void onColorProperty (const char node_name[], |
| const LazyHandle<skottie::ColorPropertyHandle>&) override; |
| void onOpacityProperty (const char node_name[], |
| const LazyHandle<skottie::OpacityPropertyHandle>&) override; |
| void onTransformProperty(const char node_name[], |
| const LazyHandle<skottie::TransformPropertyHandle>&) override; |
| |
| private: |
| std::string acceptProperty(const char* name) const { |
| static constexpr char kPrefix = '$'; |
| |
| return (name[0] == kPrefix && name[1] != '\0') |
| ? std::string(name + 1) |
| : std::string(); |
| } |
| |
| CustomPropertyManager::PropMap<skottie::ColorPropertyHandle> fColorMap; |
| CustomPropertyManager::PropMap<skottie::OpacityPropertyHandle> fOpacityMap; |
| CustomPropertyManager::PropMap<skottie::TransformPropertyHandle> fTransformMap; |
| |
| using INHERITED = skottie::PropertyObserver; |
| }; |
| |
| } // namespace skottie_utils |
| |
| #endif // SkottieUtils_DEFINED |