| /* |
| * 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 "include/core/SkCanvas.h" |
| #include "include/core/SkData.h" |
| #include "modules/audioplayer/SkAudioPlayer.h" |
| #include "samplecode/Sample.h" |
| #include "src/core/SkUtils.h" |
| #include "tools/Resources.h" |
| |
| class AudioView : public Sample { |
| std::unique_ptr<SkAudioPlayer> fPlayer; |
| SkRect fBar; |
| |
| public: |
| AudioView() {} |
| |
| protected: |
| SkString name() override { return SkString("Audio"); } |
| |
| void onOnceBeforeDraw() override { |
| auto data = SkData::MakeFromFileName("/Users/reed/skia/mp3/scott-joplin-peacherine-rag.mp3"); |
| if (data) { |
| fPlayer = SkAudioPlayer::Make(data); |
| |
| SkDebugf("make: dur:%g time%g state:%d", |
| fPlayer->duration(), |
| fPlayer->time(), |
| (int)fPlayer->state()); |
| } |
| |
| fBar = { 10, 10, 510, 30 }; |
| } |
| |
| void onDrawContent(SkCanvas* canvas) override { |
| if (!fPlayer) { |
| return; |
| } |
| |
| SkPaint p; |
| p.setColor(0xFFCCCCCC); |
| canvas->drawRect(fBar, p); |
| |
| p.setColor(fPlayer->isPlaying() ? SK_ColorBLUE : 0xFF8888FF); |
| SkRect r = fBar; |
| r.fRight = r.fLeft + (float)fPlayer->normalizedTime() * r.width(); |
| canvas->drawRect(r, p); |
| } |
| |
| bool onChar(SkUnichar c) override { |
| if (c == ' ') { |
| switch (fPlayer->state()) { |
| case SkAudioPlayer::State::kPlaying: fPlayer->pause(); break; |
| case SkAudioPlayer::State::kPaused: fPlayer->play(); break; |
| case SkAudioPlayer::State::kStopped: fPlayer->play(); break; |
| } |
| return true; |
| } |
| return this->INHERITED::onChar(c); |
| } |
| |
| Click* onFindClickHandler(SkScalar x, SkScalar y, skui::ModifierKey) override { |
| if (fPlayer && fBar.contains(x, y)) { |
| bool wasPlaying = fPlayer->isPlaying(); |
| if (wasPlaying) { |
| fPlayer->pause(); |
| } |
| return new Click([this, wasPlaying](Click* click) { |
| if (fBar.contains(click->fCurr.fX, click->fCurr.fY)) { |
| fPlayer->setNormalizedTime((click->fCurr.fX - fBar.fLeft) / fBar.width()); |
| } |
| |
| if (click->fState == skui::InputState::kUp) { |
| if (wasPlaying) { |
| fPlayer->play(); |
| } |
| } |
| return true; |
| }); |
| } |
| return nullptr; |
| } |
| |
| bool onAnimate(double /*nanos*/) override { |
| return true; |
| } |
| |
| private: |
| using INHERITED = Sample; |
| }; |
| DEF_SAMPLE( return new AudioView; ) |