skiagm::FillTypePerspGM Class Reference

Inheritance diagram for skiagm::FillTypePerspGM:

Public Member Functions
	FillTypePerspGM ()
void	makePath ()
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	showPath (SkCanvas *canvas, int x, int y, SkPathFillType ft, SkScalar scale, const SkPaint &paint)
void	showFour (SkCanvas *canvas, SkScalar scale, bool aa)
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 26 of file filltypespersp.cpp.

Constructor & Destructor Documentation

FillTypePerspGM()

skiagm::FillTypePerspGM::FillTypePerspGM ( )

inline

Definition at line 29 of file filltypespersp.cpp.

{}

Member Function Documentation

getISize()

SkISize skiagm::FillTypePerspGM::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 43 of file filltypespersp.cpp.

{ return SkISize::Make(835, 840); }

getName()

SkString skiagm::FillTypePerspGM::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 41 of file filltypespersp.cpp.

{ return SkString("filltypespersp"); }

makePath()

void skiagm::FillTypePerspGM::makePath ( )

inline

Definition at line 31 of file filltypespersp.cpp.

                    {
        if (fPath.isEmpty()) {
            const SkScalar radius = SkIntToScalar(45);
            fPath = SkPathBuilder().addCircle(SkIntToScalar(50), SkIntToScalar(50), radius)
                                   .addCircle(SkIntToScalar(100), SkIntToScalar(100), radius)
                                   .detach();
        }
    }

onDraw()

void skiagm::FillTypePerspGM::onDraw ( SkCanvas *  canvas )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 84 of file filltypespersp.cpp.

                                           {
        this->makePath();
 
        // do perspective drawPaint as the background;
        SkPaint bkgnrd;
        SkPoint center = SkPoint::Make(SkIntToScalar(100),
                                       SkIntToScalar(100));
        SkColor colors[] = {SK_ColorBLACK, SK_ColorCYAN,
                            SK_ColorYELLOW, SK_ColorWHITE};
        SkScalar pos[] = {0, SK_ScalarHalf / 2,
                          3 * SK_ScalarHalf / 2, SK_Scalar1};
        bkgnrd.setShader(SkGradientShader::MakeRadial(center,
                                                      SkIntToScalar(1000),
                                                      colors,
                                                      pos,
                                                      std::size(colors),
                                                      SkTileMode::kClamp));
        canvas->save();
            canvas->translate(SkIntToScalar(100), SkIntToScalar(100));
            SkMatrix mat;
            mat.reset();
            mat.setPerspY(SK_Scalar1 / 1000);
            canvas->concat(mat);
            canvas->drawPaint(bkgnrd);
        canvas->restore();
 
        // draw the paths in perspective
        SkMatrix persp;
        persp.reset();
        persp.setPerspX(-SK_Scalar1 / 1800);
        persp.setPerspY(SK_Scalar1 / 500);
        canvas->concat(persp);
 
        canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
        const SkScalar scale = SkIntToScalar(5)/4;
 
        showFour(canvas, SK_Scalar1, false);
        canvas->translate(SkIntToScalar(450), 0);
        showFour(canvas, scale, false);
 
        canvas->translate(SkIntToScalar(-450), SkIntToScalar(450));
        showFour(canvas, SK_Scalar1, true);
        canvas->translate(SkIntToScalar(450), 0);
        showFour(canvas, scale, true);
    }

showFour()

void skiagm::FillTypePerspGM::showFour ( SkCanvas *  canvas, SkScalar  scale, bool  aa  )

inlineprotected

Definition at line 61 of file filltypespersp.cpp.

                                                             {
        SkPaint paint;
        SkPoint center = SkPoint::Make(SkIntToScalar(100), SkIntToScalar(100));
        SkColor colors[] = {SK_ColorBLUE, SK_ColorRED, SK_ColorGREEN};
        SkScalar pos[] = {0, SK_ScalarHalf, SK_Scalar1};
        paint.setShader(SkGradientShader::MakeRadial(center,
                                                     SkIntToScalar(100),
                                                     colors,
                                                     pos,
                                                     std::size(colors),
                                                     SkTileMode::kClamp));
        paint.setAntiAlias(aa);
 
        showPath(canvas,   0,   0, SkPathFillType::kWinding,
                 scale, paint);
        showPath(canvas, 200,   0, SkPathFillType::kEvenOdd,
                 scale, paint);
        showPath(canvas,  00, 200, SkPathFillType::kInverseWinding,
                 scale, paint);
        showPath(canvas, 200, 200, SkPathFillType::kInverseEvenOdd,
                 scale, paint);
    }

showPath()

void skiagm::FillTypePerspGM::showPath ( SkCanvas *  canvas, int  x, int  y, SkPathFillType  ft, SkScalar  scale, const SkPaint &  paint  )

inlineprotected

Definition at line 45 of file filltypespersp.cpp.

                                                        {
        const SkRect r = { 0, 0, SkIntToScalar(150), SkIntToScalar(150) };
 
        canvas->save();
        canvas->translate(SkIntToScalar(x), SkIntToScalar(y));
        canvas->clipRect(r);
        canvas->drawColor(SK_ColorWHITE);
        fPath.setFillType(ft);
        canvas->translate(r.centerX(), r.centerY());
        canvas->scale(scale, scale);
        canvas->translate(-r.centerX(), -r.centerY());
        canvas->drawPath(fPath, paint);
        canvas->restore();
    }

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

• third_party/skia/gm/filltypespersp.cpp