HardstopGradientsManyGM Class Reference

Inheritance diagram for HardstopGradientsManyGM:

Public Member Functions
	HardstopGradientsManyGM ()
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
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 36 of file hardstop_gradients_many.cpp.

Constructor & Destructor Documentation

HardstopGradientsManyGM()

HardstopGradientsManyGM::HardstopGradientsManyGM ( )

inline

Definition at line 38 of file hardstop_gradients_many.cpp.

{}

Member Function Documentation

getISize()

SkISize HardstopGradientsManyGM::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 43 of file hardstop_gradients_many.cpp.

{ return SkISize::Make(kWidth, kHeight); }

getName()

SkString HardstopGradientsManyGM::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 41 of file hardstop_gradients_many.cpp.

{ return SkString("hardstop_gradients_many"); }

onDraw()

void HardstopGradientsManyGM::onDraw ( SkCanvas *  canvas )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 45 of file hardstop_gradients_many.cpp.

                                           {
        static constexpr SkPoint points[] = {
            SkPoint::Make(0,      kRectHeight / 2),
            SkPoint::Make(kWidth, kRectHeight / 2),
        };
 
        std::vector<SkColor> colors;
        std::vector<SkScalar> positions;
 
        for (int row = 1; row <= kNumRows; ++row) {
            // Assemble a gradient containing a blue-to-white blend, repeated N times per row.
            colors.push_back(SK_ColorBLUE);
            colors.push_back(SK_ColorWHITE);
 
            positions = {0.0f};
            for (int pos = 1; pos < row; ++pos) {
                float place = SkScalar(pos) / SkScalar(row);
                positions.push_back(place);
                positions.push_back(place);
            }
            positions.push_back(1.0f);
            SkASSERT(positions.size() == colors.size());
 
            // Draw it.
            auto shader = SkGradientShader::MakeLinear(points,
                                                       colors.data(),
                                                       positions.data(),
                                                       colors.size(),
                                                       SkTileMode::kClamp,
                                                       /*flags=*/0,
                                                       /*localMatrix=*/nullptr);
            SkPaint paint;
            paint.setShader(shader);
            canvas->drawRect(SkRect::MakeXYWH(0, kPadHeight, kWidth, kRectHeight), paint);
 
            canvas->translate(0, kCellHeight);
        }
    }

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

• third_party/skia/gm/hardstop_gradients_many.cpp