GammaTextGM Class Reference

Inheritance diagram for GammaTextGM:

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

Static Protected Member Functions
static void	drawGrad (SkCanvas *canvas)

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
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
Static Public Attributes inherited from skiagm::GM
static constexpr char	kErrorMsg_DrawSkippedGpuOnly []

Detailed Description

Definition at line 42 of file gammatext.cpp.

Member Function Documentation

drawGrad()

static void GammaTextGM::drawGrad ( SkCanvas *  canvas )

inlinestaticprotected

Definition at line 48 of file gammatext.cpp.

                                           {
        const SkPoint pts[] = { { 0, 0 }, { 0, SkIntToScalar(HEIGHT) } };
 
        canvas->clear(SK_ColorRED);
        SkPaint paint;
        paint.setShader(make_heatGradient(pts));
        SkRect r = { 0, 0, SkIntToScalar(1024), SkIntToScalar(HEIGHT) };
        canvas->drawRect(r, paint);
    }

getISize()

SkISize GammaTextGM::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 46 of file gammatext.cpp.

{ return SkISize::Make(1024, HEIGHT); }

getName()

SkString GammaTextGM::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 44 of file gammatext.cpp.

{ return SkString("gammatext"); }

onDraw()

void GammaTextGM::onDraw ( SkCanvas *  canvas )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 58 of file gammatext.cpp.

                                           {
        drawGrad(canvas);
 
        const SkColor fg[] = {
            0xFFFFFFFF,
            0xFFFFFF00, 0xFFFF00FF, 0xFF00FFFF,
            0xFFFF0000, 0xFF00FF00, 0xFF0000FF,
            0xFF000000,
        };
 
        const char* text = "Hamburgefons";
 
        SkPaint paint;
        SkFont font = ToolUtils::DefaultPortableFont();
        font.setSize(16);
        font.setEdging(SkFont::Edging::kSubpixelAntiAlias);
 
        SkScalar x = SkIntToScalar(10);
        for (size_t i = 0; i < std::size(fg); ++i) {
            paint.setColor(fg[i]);
 
            SkScalar y = SkIntToScalar(40);
            SkScalar stopy = SkIntToScalar(HEIGHT);
            while (y < stopy) {
                canvas->drawString(text, x, y, font, paint);
                y += font.getSize() * 2;
            }
            x += SkIntToScalar(1024) / std::size(fg);
        }
    }

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

• third_party/skia/gm/gammatext.cpp