Dashing5GM Class Reference

Inheritance diagram for Dashing5GM:

Public Member Functions
	Dashing5GM (bool doAA)
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)
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

Private Member Functions
bool	runAsBench () const override
SkString	getName () const override
SkISize	getISize () override
void	onDraw (SkCanvas *canvas) override

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 []
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 bool	onAnimate (double)
virtual bool	onGetControls (SkMetaData *)
virtual void	onSetControls (const SkMetaData &)
GraphiteTestContext *	graphiteTestContext () const

Detailed Description

Definition at line 407 of file dashing.cpp.

Constructor & Destructor Documentation

Dashing5GM()

Dashing5GM::Dashing5GM ( bool  doAA )

inline

Definition at line 409 of file dashing.cpp.

: fDoAA(doAA) {}

Member Function Documentation

getISize()

SkISize Dashing5GM::getISize ( )

inlineoverrideprivatevirtual

Implements skiagm::GM.

Definition at line 416 of file dashing.cpp.

{ return {400, 200}; }

getName()

SkString Dashing5GM::getName ( ) const

inlineoverrideprivatevirtual

Implements skiagm::GM.

Definition at line 414 of file dashing.cpp.

{ return SkString(fDoAA ? "dashing5_aa" : "dashing5_bw"); }

onDraw()

void Dashing5GM::onDraw ( SkCanvas *  canvas )

inlineoverrideprivatevirtual

Reimplemented from skiagm::GM.

Definition at line 418 of file dashing.cpp.

                                           {
        constexpr int kOn = 4;
        constexpr int kOff = 4;
        constexpr int kIntervalLength = kOn + kOff;
 
        constexpr SkColor gColors[kIntervalLength] = {
            SK_ColorRED,
            SK_ColorGREEN,
            SK_ColorBLUE,
            SK_ColorCYAN,
            SK_ColorMAGENTA,
            SK_ColorYELLOW,
            SK_ColorGRAY,
            SK_ColorDKGRAY
        };
 
        SkPaint paint;
        paint.setStroke(true);
 
        paint.setAntiAlias(fDoAA);
 
        SkMatrix rot;
        rot.setRotate(90);
        SkASSERT(rot.rectStaysRect());
 
        canvas->concat(rot);
 
        int sign;       // used to toggle the direction of the lines
        int phase = 0;
 
        for (int x = 0; x < 200; x += 10) {
            paint.setStrokeWidth(SkIntToScalar(phase+1));
            paint.setColor(gColors[phase]);
            sign = (x % 20) ? 1 : -1;
            drawline(canvas, kOn, kOff, paint,
                     SkIntToScalar(x), -sign * SkIntToScalar(10003),
                     SkIntToScalar(phase),
                     SkIntToScalar(x),  sign * SkIntToScalar(10003));
            phase = (phase + 1) % kIntervalLength;
        }
 
        for (int y = -400; y < 0; y += 10) {
            paint.setStrokeWidth(SkIntToScalar(phase+1));
            paint.setColor(gColors[phase]);
            sign = (y % 20) ? 1 : -1;
            drawline(canvas, kOn, kOff, paint,
                     -sign * SkIntToScalar(10003), SkIntToScalar(y),
                     SkIntToScalar(phase),
                      sign * SkIntToScalar(10003), SkIntToScalar(y));
            phase = (phase + 1) % kIntervalLength;
        }
    }

runAsBench()

bool Dashing5GM::runAsBench ( ) const

inlineoverrideprivatevirtual

Reimplemented from skiagm::GM.

Definition at line 412 of file dashing.cpp.

{ return true; }

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

• third_party/skia/gm/dashing.cpp