AudioSlide Class Reference

Inheritance diagram for AudioSlide:

Public Member Functions
	AudioSlide ()
void	load (SkScalar w, SkScalar h) override
void	draw (SkCanvas *canvas) override
bool	onChar (SkUnichar c) override
Click *	onFindClickHandler (SkScalar x, SkScalar y, skui::ModifierKey) override
bool	onClick (ClickHandlerSlide::Click *) override
bool	animate (double) override
Public Member Functions inherited from ClickHandlerSlide
bool	onMouse (SkScalar x, SkScalar y, skui::InputState clickState, skui::ModifierKey modifierKeys) final
Public Member Functions inherited from Slide
virtual SkISize	getDimensions () const
virtual void	gpuTeardown ()
virtual void	draw (SkCanvas *canvas)=0
virtual bool	animate (double nanos)
virtual void	load (SkScalar winWidth, SkScalar winHeight)
virtual void	resize (SkScalar winWidth, SkScalar winHeight)
virtual void	unload ()
virtual bool	onChar (SkUnichar c)
virtual bool	onMouse (SkScalar x, SkScalar y, skui::InputState state, skui::ModifierKey modifiers)
virtual bool	onGetControls (SkMetaData *)
virtual void	onSetControls (const SkMetaData &)
const SkString &	getName ()
Public Member Functions inherited from SkRefCntBase
	SkRefCntBase ()
virtual	~SkRefCntBase ()
bool	unique () const
void	ref () const
void	unref () const

Additional Inherited Members
virtual Click *	onFindClickHandler (SkScalar x, SkScalar y, skui::ModifierKey modi)=0
virtual bool	onClick (Click *)=0
Protected Attributes inherited from Slide
SkString	fName

Detailed Description

Definition at line 15 of file AudioSlide.cpp.

Constructor & Destructor Documentation

AudioSlide()

AudioSlide::AudioSlide ( )

inline

Definition at line 20 of file AudioSlide.cpp.

{ fName = "Audio"; }

Member Function Documentation

animate()

bool AudioSlide::animate ( double  )

inlineoverridevirtual

Reimplemented from Slide.

Definition at line 87 of file AudioSlide.cpp.

                                    {
        return true;
    }

draw()

void AudioSlide::draw ( SkCanvas *  canvas )

inlineoverridevirtual

Implements Slide.

Definition at line 36 of file AudioSlide.cpp.

                                         {
        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);
    }

load()

void AudioSlide::load ( SkScalar  w, SkScalar  h  )

inlineoverridevirtual

Reimplemented from Slide.

Definition at line 22 of file AudioSlide.cpp.

                                               {
        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 };
    }

onChar()

bool AudioSlide::onChar ( SkUnichar  c )

inlineoverridevirtual

Reimplemented from Slide.

Definition at line 51 of file AudioSlide.cpp.

                                      {
        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->ClickHandlerSlide::onChar(c);
    }

onClick()

bool AudioSlide::onClick ( ClickHandlerSlide::Click *  )

inlineoverridevirtual

Override to track clicks. Return true as long as you want to track the pen/mouse.

Implements ClickHandlerSlide.

Definition at line 85 of file AudioSlide.cpp.

{ return false; }

onFindClickHandler()

Click * AudioSlide::onFindClickHandler ( SkScalar  x, SkScalar  y, skui::ModifierKey  modi  )

inlineoverridevirtual

Return a Click object to handle the click. onClick will be called repeatedly with the latest mouse state tracked on the Click object until it returns false.

Implements ClickHandlerSlide.

Definition at line 63 of file AudioSlide.cpp.

                                                                                {
        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;
    }

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The documentation for this class was generated from the following file:

• third_party/skia/tools/viewer/AudioSlide.cpp