TrimGM Class Reference

Inheritance diagram for TrimGM:

Public Member Functions
	TrimGM ()
void	onOnceBeforeDraw () override
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
bool	onAnimate (double nanos) override
Protected Member Functions inherited from skiagm::GM
virtual DrawResult	onGpuSetup (SkCanvas *, SkString *, GraphiteTestContext *)
virtual void	onGpuTeardown ()
virtual DrawResult	onDraw (SkCanvas *, SkString *errorMsg)
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 77 of file dashcubics.cpp.

Constructor & Destructor Documentation

TrimGM()

TrimGM::TrimGM ( )

inline

Definition at line 79 of file dashcubics.cpp.

{}

Member Function Documentation

getISize()

SkISize TrimGM::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 109 of file dashcubics.cpp.

{ return SkISize::Make(1400, 1000); }

getName()

SkString TrimGM::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 107 of file dashcubics.cpp.

{ return SkString("trimpatheffect"); }

onAnimate()

bool TrimGM::onAnimate ( double  nanos )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 166 of file dashcubics.cpp.

                                          {
        fOffset = TimeUtils::NanosToMSec(nanos) / 2000.0f;
        fOffset -= floorf(fOffset);
        return true;
    }

onDraw()

void TrimGM::onDraw ( SkCanvas *  canvas )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 111 of file dashcubics.cpp.

                                           {
        static constexpr SkSize kCellSize = { 440, 150 };
        static constexpr SkScalar kOffsets[][2] = {
            { -0.33f, -0.66f },
            {  0    ,  1    },
            {  0    ,  0.25f},
            {  0.25f,  0.75f},
            {  0.75f,  1    },
            {  1    ,  0.75f},
        };
 
        SkPaint hairlinePaint;
        hairlinePaint.setAntiAlias(true);
        hairlinePaint.setStroke(true);
        hairlinePaint.setStrokeCap(SkPaint::kRound_Cap);
        hairlinePaint.setStrokeWidth(2);
        SkPaint normalPaint = hairlinePaint;
        normalPaint.setStrokeWidth(10);
        normalPaint.setColor(0x8000ff00);
        SkPaint invertedPaint = normalPaint;
        invertedPaint.setColor(0x80ff0000);
 
        for (const auto& offset : kOffsets) {
            auto start = offset[0] + fOffset,
                 stop  = offset[1] + fOffset;
 
            auto normalMode   = SkTrimPathEffect::Mode::kNormal,
                 invertedMode = SkTrimPathEffect::Mode::kInverted;
            if (fOffset) {
                start -= SkScalarFloorToScalar(start);
                stop  -= SkScalarFloorToScalar(stop);
                if (start > stop) {
                    using std::swap;
                    swap(start, stop);
                    swap(normalMode, invertedMode);
                }
            }
 
            normalPaint.setPathEffect(SkTrimPathEffect::Make(start, stop, normalMode));
            invertedPaint.setPathEffect(SkTrimPathEffect::Make(start, stop, invertedMode));
 
            {
                SkAutoCanvasRestore acr(canvas, true);
                for (const auto& path : fPaths) {
                    canvas->drawPath(path, normalPaint);
                    canvas->drawPath(path, invertedPaint);
                    canvas->drawPath(path, hairlinePaint);
                    canvas->translate(kCellSize.width(), 0);
                }
            }
 
            canvas->translate(0, kCellSize.height());
        }
    }

onOnceBeforeDraw()

void TrimGM::onOnceBeforeDraw ( )

inlineoverridevirtual

Reimplemented from skiagm::GM.

Definition at line 81 of file dashcubics.cpp.

                                     {
        SkAssertResult(SkParsePath::FromSVGString(
            "M   0,100 C  10, 50 190, 50 200,100"
            "M 200,100 C 210,150 390,150 400,100"
            "M 400,100 C 390, 50 210, 50 200,100"
            "M 200,100 C 190,150  10,150   0,100",
            &fPaths.push_back()));
 
        SkAssertResult(SkParsePath::FromSVGString(
            "M   0, 75 L 200, 75"
            "M 200, 91 L 200, 91"
            "M 200,108 L 200,108"
            "M 200,125 L 400,125",
            &fPaths.push_back()));
 
        SkAssertResult(SkParsePath::FromSVGString(
            "M   0,100 L  50, 50"
            "M  50, 50 L 150,150"
            "M 150,150 L 250, 50"
            "M 250, 50 L 350,150"
            "M 350,150 L 400,100",
            &fPaths.push_back()));
 
    }

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

• third_party/skia/gm/dashcubics.cpp