Dashing2GM Class Reference

Inheritance diagram for Dashing2GM:

Private Member Functions
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
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 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
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 142 of file dashing.cpp.

Member Function Documentation

getISize()

SkISize Dashing2GM::getISize ( )

inlineoverrideprivatevirtual

Implements skiagm::GM.

Definition at line 145 of file dashing.cpp.

{ return {640, 480}; }

getName()

SkString Dashing2GM::getName ( ) const

inlineoverrideprivatevirtual

Implements skiagm::GM.

Definition at line 143 of file dashing.cpp.

{ return SkString("dashing2"); }

onDraw()

void Dashing2GM::onDraw ( SkCanvas *  canvas )

inlineoverrideprivatevirtual

Reimplemented from skiagm::GM.

Definition at line 147 of file dashing.cpp.

                                           {
        constexpr int gIntervals[] = {
            3,  // 3 dashes: each count [0] followed by intervals [1..count]
            2,  10, 10,
            4,  20, 5, 5, 5,
            2,  2, 2
        };
 
        SkPath (*gProc[])(const SkRect&) = {
            make_path_line, make_path_rect, make_path_oval, make_path_star,
        };
 
        SkPaint paint;
        paint.setAntiAlias(true);
        paint.setStroke(true);
        paint.setStrokeWidth(SkIntToScalar(6));
 
        SkRect bounds = SkRect::MakeWH(SkIntToScalar(120), SkIntToScalar(120));
        bounds.offset(SkIntToScalar(20), SkIntToScalar(20));
        SkScalar dx = bounds.width() * 4 / 3;
        SkScalar dy = bounds.height() * 4 / 3;
 
        const int* intervals = &gIntervals[1];
        for (int y = 0; y < gIntervals[0]; ++y) {
            SkScalar vals[std::size(gIntervals)];  // more than enough
            int count = *intervals++;
            for (int i = 0; i < count; ++i) {
                vals[i] = SkIntToScalar(*intervals++);
            }
            SkScalar phase = vals[0] / 2;
            paint.setPathEffect(SkDashPathEffect::Make(vals, count, phase));
 
            for (size_t x = 0; x < std::size(gProc); ++x) {
                SkPath path;
                SkRect r = bounds;
                r.offset(x * dx, y * dy);
                canvas->drawPath(gProc[x](r), paint);
            }
        }
    }

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

• third_party/skia/gm/dashing.cpp