Poly2PolyGM Class Reference

Inheritance diagram for Poly2PolyGM:

Public Member Functions
	Poly2PolyGM ()
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	onOnceBeforeDraw () override
void	onDraw (SkCanvas *canvas) 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	onAnimate (double)
virtual bool	onGetControls (SkMetaData *)
virtual void	onSetControls (const SkMetaData &)
GraphiteTestContext *	graphiteTestContext () const

Static Protected Member Functions
static void	doDraw (SkCanvas *canvas, const SkFont &font, SkPaint *paint, const int isrc[], const int idst[], int count)

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 29 of file poly2poly.cpp.

Constructor & Destructor Documentation

Poly2PolyGM()

Poly2PolyGM::Poly2PolyGM ( )

inline

Definition at line 31 of file poly2poly.cpp.

{}

Member Function Documentation

doDraw()

static void Poly2PolyGM::doDraw ( SkCanvas *  canvas, const SkFont &  font, SkPaint *  paint, const int  isrc[], const int  idst[], int  count  )

inlinestaticprotected

Definition at line 38 of file poly2poly.cpp.

                                                    {
        SkMatrix matrix;
        SkPoint src[4], dst[4];
 
        for (int i = 0; i < count; i++) {
            src[i].set(SkIntToScalar(isrc[2*i+0]), SkIntToScalar(isrc[2*i+1]));
            dst[i].set(SkIntToScalar(idst[2*i+0]), SkIntToScalar(idst[2*i+1]));
        }
 
        canvas->save();
        matrix.setPolyToPoly(src, dst, count);
        canvas->concat(matrix);
 
        paint->setColor(SK_ColorGRAY);
        paint->setStyle(SkPaint::kStroke_Style);
        const SkScalar D = 64;
        canvas->drawRect(SkRect::MakeWH(D, D), *paint);
        canvas->drawLine(0, 0, D, D, *paint);
        canvas->drawLine(0, D, D, 0, *paint);
 
        SkFontMetrics fm;
        font.getMetrics(&fm);
        paint->setColor(SK_ColorRED);
        paint->setStyle(SkPaint::kFill_Style);
        SkScalar x = D/2;
        SkScalar y = D/2 - (fm.fAscent + fm.fDescent)/2;
        uint16_t glyphID = 3; // X
        SkTextUtils::Draw(canvas, &glyphID, sizeof(glyphID), SkTextEncoding::kGlyphID, x, y,
                          font, *paint, SkTextUtils::kCenter_Align);
        canvas->restore();
    }

getISize()

SkISize Poly2PolyGM::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 36 of file poly2poly.cpp.

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

getName()

SkString Poly2PolyGM::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 34 of file poly2poly.cpp.

{ return SkString("poly2poly"); }

onDraw()

void Poly2PolyGM::onDraw ( SkCanvas *  canvas )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 78 of file poly2poly.cpp.

                                           {
        SkPaint paint;
        paint.setAntiAlias(true);
        paint.setStrokeWidth(SkIntToScalar(4));
        SkFont font(fEmFace, 40);
 
        canvas->save();
        canvas->translate(SkIntToScalar(10), SkIntToScalar(10));
        // translate (1 point)
        const int src1[] = { 0, 0 };
        const int dst1[] = { 5, 5 };
        doDraw(canvas, font, &paint, src1, dst1, 1);
        canvas->restore();
 
        canvas->save();
        canvas->translate(SkIntToScalar(160), SkIntToScalar(10));
        // rotate/uniform-scale (2 points)
        const int src2[] = { 32, 32, 64, 32 };
        const int dst2[] = { 32, 32, 64, 48 };
        doDraw(canvas, font, &paint, src2, dst2, 2);
        canvas->restore();
 
        canvas->save();
        canvas->translate(SkIntToScalar(10), SkIntToScalar(110));
        // rotate/skew (3 points)
        const int src3[] = { 0, 0, 64, 0, 0, 64 };
        const int dst3[] = { 0, 0, 96, 0, 24, 64 };
        doDraw(canvas, font, &paint, src3, dst3, 3);
        canvas->restore();
 
        canvas->save();
        canvas->translate(SkIntToScalar(160), SkIntToScalar(110));
        // perspective (4 points)
        const int src4[] = { 0, 0, 64, 0, 64, 64, 0, 64 };
        const int dst4[] = { 0, 0, 96, 0, 64, 96, 0, 64 };
        doDraw(canvas, font, &paint, src4, dst4, 4);
        canvas->restore();
    }

onOnceBeforeDraw()

void Poly2PolyGM::onOnceBeforeDraw ( )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 71 of file poly2poly.cpp.

                                     {
        fEmFace = ToolUtils::CreateTypefaceFromResource("fonts/Em.ttf");
        if (!fEmFace) {
            fEmFace = ToolUtils::DefaultPortableTypeface();
        }
    }

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

• third_party/skia/gm/poly2poly.cpp