ShadowRefSlide Class Reference

Inheritance diagram for ShadowRefSlide:

Public Member Functions
	ShadowRefSlide ()
void	load (SkScalar w, SkScalar h) override
bool	onChar (SkUnichar uni) override
void	draw (SkCanvas *canvas) override
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
Protected Attributes inherited from Slide
SkString	fName

Detailed Description

Definition at line 21 of file ShadowReferenceSlide.cpp.

Constructor & Destructor Documentation

ShadowRefSlide()

ShadowRefSlide::ShadowRefSlide ( )

inline

Definition at line 31 of file ShadowReferenceSlide.cpp.

        : fShowAmbient(true)
        , fShowSpot(true)
        , fUseAlt(false)
        , fShowObject(true) {
        fName = "ShadowReference";
    }

Member Function Documentation

draw()

void ShadowRefSlide::draw ( SkCanvas *  canvas )

inlineoverridevirtual

Implements Slide.

Definition at line 72 of file ShadowReferenceSlide.cpp.

                                         {
        this->drawBG(canvas);
        const SkScalar kDP = 4;  // the reference image is 4x bigger than it is displayed on
                                 // on the web page, so we need to reflect that here and
                                 // multiply the heights and light params accordingly
        const SkScalar kLightWidth = kDP*400;
        const SkScalar kAmbientAlpha = 0.03f;
        const SkScalar kSpotAlpha = 0.35f;
 
        SkPaint paint;
        paint.setAntiAlias(true);
        paint.setColor(SK_ColorWHITE);
 
        SkPoint3 lightPos = { 175, -800, kDP * 600 };
        SkScalar xPos = 230;
        SkScalar yPos = 254.25f;
        SkRect clipRect = SkRect::MakeXYWH(45, 75, 122, 250);
        SkPoint clipDelta = SkPoint::Make(320, 0);
        SkPoint3 zPlaneParams = SkPoint3::Make(0, 0, kDP * 2);
 
        canvas->save();
        canvas->clipRect(clipRect);
        canvas->translate(xPos, yPos);
        this->drawShadowedPath(canvas, fRRectPath, zPlaneParams, paint, kAmbientAlpha,
                               lightPos, kLightWidth, kSpotAlpha);
        canvas->restore();
 
        lightPos.fX += 320;
        xPos += 320;
        clipRect.offset(clipDelta);
        zPlaneParams.fZ = kDP * 3;
        canvas->save();
        canvas->clipRect(clipRect);
        canvas->translate(xPos, yPos);
        this->drawShadowedPath(canvas, fRRectPath, zPlaneParams, paint, kAmbientAlpha,
                               lightPos, kLightWidth, kSpotAlpha);
        canvas->restore();
 
        lightPos.fX += 320;
        xPos += 320;
        clipRect.offset(clipDelta);
        zPlaneParams.fZ = kDP * 4;
        canvas->save();
        canvas->clipRect(clipRect);
        canvas->translate(xPos, yPos);
        this->drawShadowedPath(canvas, fRRectPath, zPlaneParams, paint, kAmbientAlpha,
                               lightPos, kLightWidth, kSpotAlpha);
        canvas->restore();
 
        lightPos.fX += 320;
        xPos += 320;
        clipRect.offset(clipDelta);
        zPlaneParams.fZ = kDP * 6;
        canvas->save();
        canvas->clipRect(clipRect);
        canvas->translate(xPos, yPos);
        this->drawShadowedPath(canvas, fRRectPath, zPlaneParams, paint, kAmbientAlpha,
                               lightPos, kLightWidth, kSpotAlpha);
        canvas->restore();
 
        lightPos.fX += 320;
        xPos += 320;
        clipRect.offset(clipDelta);
        zPlaneParams.fZ = kDP * 8;
        canvas->save();
        canvas->clipRect(clipRect);
        canvas->translate(xPos, yPos);
        this->drawShadowedPath(canvas, fRRectPath, zPlaneParams, paint, kAmbientAlpha,
                               lightPos, kLightWidth, kSpotAlpha);
        canvas->restore();
 
        lightPos.fX += 320;
        xPos += 320;
        clipRect.offset(clipDelta);
        zPlaneParams.fZ = kDP * 16;
        canvas->save();
        canvas->clipRect(clipRect);
        canvas->translate(xPos, yPos);
        this->drawShadowedPath(canvas, fRRectPath, zPlaneParams, paint, kAmbientAlpha,
                               lightPos, kLightWidth, kSpotAlpha);
        canvas->restore();
 
    }

load()

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

inlineoverridevirtual

Reimplemented from Slide.

Definition at line 39 of file ShadowReferenceSlide.cpp.

                                               {
        fRRectPath.addRRect(SkRRect::MakeRectXY(SkRect::MakeXYWH(-130, -128.5, 130, 128.5), 4, 4));
        fReferenceImage = ToolUtils::GetResourceAsImage("images/shadowreference.png");
    }

onChar()

bool ShadowRefSlide::onChar ( SkUnichar  uni )

inlineoverridevirtual

Reimplemented from Slide.

Definition at line 44 of file ShadowReferenceSlide.cpp.

                                        {
            bool handled = false;
            switch (uni) {
                case 'W':
                    fShowAmbient = !fShowAmbient;
                    handled = true;
                    break;
                case 'S':
                    fShowSpot = !fShowSpot;
                    handled = true;
                    break;
                case 'T':
                    fUseAlt = !fUseAlt;
                    handled = true;
                    break;
                case 'O':
                    fShowObject = !fShowObject;
                    handled = true;
                    break;
                default:
                    break;
            }
            if (handled) {
                return true;
            }
            return false;
    }

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

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