| /* |
| * Copyright 2017 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "gm.h" |
| #include "Resources.h" |
| #include "SkAnimTimer.h" |
| #include "SkColor.h" |
| #include "Skottie.h" |
| #include "SkottieProperty.h" |
| |
| #include <cmath> |
| #include <vector> |
| |
| using namespace skottie; |
| |
| namespace { |
| |
| static constexpr char kWebFontResource[] = "fonts/Roboto-Regular.ttf"; |
| static constexpr char kSkottieResource[] = "skottie/skottie_sample_webfont.json"; |
| |
| // Dummy web font loader which serves a single local font (checked in under resources/). |
| class FakeWebFontProvider final : public ResourceProvider { |
| public: |
| FakeWebFontProvider() : fFontData(GetResourceAsData(kWebFontResource)) {} |
| |
| sk_sp<SkData> loadFont(const char[], const char[]) const override { |
| return fFontData; |
| } |
| |
| private: |
| sk_sp<SkData> fFontData; |
| |
| using INHERITED = ResourceProvider; |
| }; |
| |
| } // namespace |
| |
| class SkottieWebFontGM : public skiagm::GM { |
| public: |
| protected: |
| SkString onShortName() override { |
| return SkString("skottie_webfont"); |
| } |
| |
| SkISize onISize() override { |
| return SkISize::Make(kSize, kSize); |
| } |
| |
| void onOnceBeforeDraw() override { |
| if (auto stream = GetResourceAsStream(kSkottieResource)) { |
| fAnimation = Animation::Builder() |
| .setResourceProvider(sk_make_sp<FakeWebFontProvider>()) |
| .make(stream.get()); |
| } |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| if (!fAnimation) { |
| return; |
| } |
| |
| auto dest = SkRect::MakeWH(kSize, kSize); |
| fAnimation->render(canvas, &dest); |
| } |
| |
| bool onAnimate(const SkAnimTimer& timer) override { |
| if (!fAnimation) { |
| return false; |
| } |
| |
| const auto duration = fAnimation->duration(); |
| fAnimation->seek(std::fmod(timer.secs(), duration) / duration); |
| return true; |
| } |
| |
| private: |
| static constexpr SkScalar kSize = 800; |
| |
| sk_sp<Animation> fAnimation; |
| |
| using INHERITED = skiagm::GM; |
| }; |
| |
| DEF_GM(return new SkottieWebFontGM;) |
| |
| class SkottieColorizeGM : public skiagm::GM { |
| public: |
| protected: |
| SkString onShortName() override { |
| return SkString("skottie_colorize"); |
| } |
| |
| SkISize onISize() override { |
| return SkISize::Make(kSize, kSize); |
| } |
| |
| void onOnceBeforeDraw() override { |
| if (auto stream = GetResourceAsStream("skottie/skottie_sample_search.json")) { |
| fColorizer = sk_make_sp<Colorizer>(); |
| fAnimation = Animation::Builder() |
| .setPropertyObserver(fColorizer) |
| .make(stream.get()); |
| } |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| if (!fAnimation) { |
| return; |
| } |
| |
| auto dest = SkRect::MakeWH(kSize, kSize); |
| fAnimation->render(canvas, &dest); |
| } |
| |
| bool onAnimate(const SkAnimTimer& timer) override { |
| if (!fAnimation) { |
| return false; |
| } |
| |
| const auto duration = fAnimation->duration(); |
| fAnimation->seek(std::fmod(timer.secs(), duration) / duration); |
| return true; |
| } |
| |
| protected: |
| bool onHandleKey(SkUnichar uni) override { |
| static constexpr SkColor kColors[] = { |
| SK_ColorBLACK, |
| SK_ColorRED, |
| SK_ColorGREEN, |
| SK_ColorYELLOW, |
| SK_ColorCYAN, |
| }; |
| |
| if (uni == 'c') { |
| fColorIndex = (fColorIndex + 1) % SK_ARRAY_COUNT(kColors); |
| fColorizer->colorize(kColors[fColorIndex]); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| private: |
| class Colorizer final : public PropertyObserver { |
| public: |
| void onColorProperty(const char node_name[], |
| const PropertyObserver::LazyHandle<ColorPropertyHandle>& lh) override { |
| fColorHandles.push_back(lh()); |
| } |
| |
| void colorize(SkColor c) { |
| for (const auto& handle : fColorHandles) { |
| handle->setColor(c); |
| } |
| } |
| |
| private: |
| std::vector<std::unique_ptr<skottie::ColorPropertyHandle>> fColorHandles; |
| }; |
| |
| static constexpr SkScalar kSize = 800; |
| |
| sk_sp<Animation> fAnimation; |
| sk_sp<Colorizer> fColorizer; |
| size_t fColorIndex = 0; |
| |
| using INHERITED = skiagm::GM; |
| }; |
| |
| DEF_GM(return new SkottieColorizeGM;) |