GradientsManyColorsGM Class Reference

Inheritance diagram for GradientsManyColorsGM:

Public Member Functions
	GradientsManyColorsGM (bool dither)
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

Protected Member Functions
SkString	getName () const override
SkISize	getISize () override
void	onDraw (SkCanvas *canvas) 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 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 228 of file gradients_no_texture.cpp.

Constructor & Destructor Documentation

GradientsManyColorsGM()

GradientsManyColorsGM::GradientsManyColorsGM ( bool  dither )

inline

Definition at line 236 of file gradients_no_texture.cpp.

: fDither(dither) {}

Member Function Documentation

getISize()

SkISize GradientsManyColorsGM::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 243 of file gradients_no_texture.cpp.

{ return SkISize::Make(880, 400); }

getName()

SkString GradientsManyColorsGM::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 239 of file gradients_no_texture.cpp.

                                      {
        return SkString(fDither ? "gradients_many" : "gradients_many_nodither");
    }

onDraw()

void GradientsManyColorsGM::onDraw ( SkCanvas *  canvas )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 245 of file gradients_no_texture.cpp.

                                           {
        const Proc procs[] = {
            make0, make1, make2, make3,
        };
        const SkPoint pts[] = {
            { 0, 0 },
            { SkIntToScalar(W), 0 },
        };
        const SkRect r = SkRect::MakeWH(SkIntToScalar(W), 30);
 
        SkPaint paint;
        paint.setDither(fDither);
 
        canvas->translate(40, 20);
 
        for (int i = 0; i <= 8; ++i) {
            SkScalar x = r.width() * i / 8;
            canvas->drawLine(x, 0, x, 10000, paint);
        }
 
        // expand the drawing rect so we exercise clampping in the gradients
        const SkRect drawR = r.makeOutset(20, 0);
        for (size_t i = 0; i < std::size(procs); ++i) {
            ColorPos rec;
            procs[i](&rec);
            paint.setShader(SkGradientShader::MakeLinear(pts, rec.fColors, rec.fPos, rec.fCount,
                                                         SkTileMode::kClamp));
            canvas->drawRect(drawR, paint);
 
            canvas->save();
            canvas->translate(r.centerX(), r.height() + 4);
            canvas->scale(-1, 1);
            canvas->translate(-r.centerX(), 0);
            canvas->drawRect(drawR, paint);
            canvas->restore();
 
            canvas->translate(0, r.height() + 2*r.height() + 8);
        }
    }

---

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

• third_party/skia/gm/gradients_no_texture.cpp