AddArcGM Class Reference

Inheritance diagram for AddArcGM:

Public Member Functions
	AddArcGM ()
Public Member Functions inherited from skiagm::GM
	GM (SkColor backgroundColor=SK_ColorWHITE)
virtual	~GM ()
void	setMode (Mode mode)
Mode	getMode () const
DrawResult	gpuSetup (SkCanvas *, SkString *errorMsg, GraphiteTestContext *=nullptr)
void	gpuTeardown ()
void	onceBeforeDraw ()
DrawResult	draw (SkCanvas *canvas)
DrawResult	draw (SkCanvas *, SkString *errorMsg)
void	drawBackground (SkCanvas *)
DrawResult	drawContent (SkCanvas *canvas)
DrawResult	drawContent (SkCanvas *, SkString *errorMsg)
virtual SkISize	getISize ()=0
virtual SkString	getName () const =0
virtual bool	runAsBench () const
SkScalar	width ()
SkScalar	height ()
SkColor	getBGColor () const
void	setBGColor (SkColor)
void	drawSizeBounds (SkCanvas *, SkColor)
bool	animate (double)
virtual bool	onChar (SkUnichar)
bool	getControls (SkMetaData *controls)
void	setControls (const SkMetaData &controls)
virtual void	modifyGrContextOptions (GrContextOptions *)
virtual void	modifyGraphiteContextOptions (skgpu::graphite::ContextOptions *) const
virtual bool	isBazelOnly () const
virtual std::map< std::string, std::string >	getGoldKeys () const

Protected Member Functions
SkString	getName () const override
SkISize	getISize () override
void	onDraw (SkCanvas *canvas) override
bool	onAnimate (double nanos) override
Protected Member Functions inherited from skiagm::GM
virtual DrawResult	onGpuSetup (SkCanvas *, SkString *, GraphiteTestContext *)
virtual void	onGpuTeardown ()
virtual void	onOnceBeforeDraw ()
virtual DrawResult	onDraw (SkCanvas *, SkString *errorMsg)
virtual void	onDraw (SkCanvas *)
virtual bool	onAnimate (double)
virtual bool	onGetControls (SkMetaData *)
virtual void	onSetControls (const SkMetaData &)
GraphiteTestContext *	graphiteTestContext () const

Additional Inherited Members
Public Types inherited from skiagm::GM
enum	Mode { kGM_Mode , kSample_Mode , kBench_Mode }
using	DrawResult = skiagm::DrawResult
using	GraphiteTestContext = skiatest::graphite::GraphiteTestContext
Static Public Attributes inherited from skiagm::GM
static constexpr char	kErrorMsg_DrawSkippedGpuOnly []

Detailed Description

Definition at line 25 of file addarc.cpp.

Constructor & Destructor Documentation

AddArcGM()

AddArcGM::AddArcGM ( )

inline

Definition at line 27 of file addarc.cpp.

: fRotate(0) {}

Member Function Documentation

getISize()

SkISize AddArcGM::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 32 of file addarc.cpp.

{ return SkISize::Make(1040, 1040); }

getName()

SkString AddArcGM::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 30 of file addarc.cpp.

{ return SkString("addarc"); }

onAnimate()

bool AddArcGM::onAnimate ( double  nanos )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 65 of file addarc.cpp.

                                          {
        fRotate = TimeUtils::Scaled(1e-9 * nanos, 1, 360);
        return true;
    }

onDraw()

void AddArcGM::onDraw ( SkCanvas *  canvas )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 34 of file addarc.cpp.

                                           {
        canvas->translate(20, 20);
 
        SkRect r = SkRect::MakeWH(1000, 1000);
 
        SkPaint paint;
        paint.setAntiAlias(true);
        paint.setStroke(true);
        paint.setStrokeWidth(15);
 
        const SkScalar inset = paint.getStrokeWidth() + 4;
        const SkScalar sweepAngle = 345;
        SkRandom rand;
 
        SkScalar sign = 1;
        while (r.width() > paint.getStrokeWidth() * 3) {
            paint.setColor(ToolUtils::color_to_565(rand.nextU() | (0xFF << 24)));
            SkScalar startAngle = rand.nextUScalar1() * 360;
 
            SkScalar speed = SkScalarSqrt(16 / r.width()) * 0.5f;
            startAngle += fRotate * 360 * speed * sign;
 
            SkPathBuilder path;
            path.addArc(r, startAngle, sweepAngle);
            canvas->drawPath(path.detach().setIsVolatile(true), paint);
 
            r.inset(inset, inset);
            sign = -sign;
        }
    }

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

• third_party/skia/gm/addarc.cpp