skiagm::ScaledEmojiRenderingGM Class Reference

Inheritance diagram for skiagm::ScaledEmojiRenderingGM:

Public Member Functions
	ScaledEmojiRenderingGM ()
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
void	onOnceBeforeDraw () override
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 DrawResult	onDraw (SkCanvas *, SkString *errorMsg)
virtual bool	onAnimate (double)
virtual bool	onGetControls (SkMetaData *)
virtual void	onSetControls (const SkMetaData &)
GraphiteTestContext *	graphiteTestContext () const

Protected Attributes
ToolUtils::EmojiTestSample	fontSamples [std::size(formatsToTest)]

Static Protected Attributes
static constexpr ToolUtils::EmojiFontFormat	formatsToTest []

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 30 of file scaledemoji_rendering.cpp.

Constructor & Destructor Documentation

ScaledEmojiRenderingGM()

skiagm::ScaledEmojiRenderingGM::ScaledEmojiRenderingGM ( )

inline

Definition at line 32 of file scaledemoji_rendering.cpp.

{}

Member Function Documentation

getISize()

SkISize skiagm::ScaledEmojiRenderingGM::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 54 of file scaledemoji_rendering.cpp.

{ return SkISize::Make(1200, 1200); }

getName()

SkString skiagm::ScaledEmojiRenderingGM::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 52 of file scaledemoji_rendering.cpp.

{ return SkString("scaledemoji_rendering"); }

onDraw()

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

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 56 of file scaledemoji_rendering.cpp.

                                           {
 
        canvas->drawColor(SK_ColorGRAY);
        SkPaint textPaint;
        textPaint.setColor(SK_ColorCYAN);
 
        SkPaint boundsPaint;
        boundsPaint.setStrokeWidth(2);
        boundsPaint.setStyle(SkPaint::kStroke_Style);
        boundsPaint.setColor(SK_ColorGREEN);
 
        SkPaint advancePaint;
        advancePaint.setColor(SK_ColorRED);
 
        SkScalar y = 0;
        for (auto& sample : fontSamples) {
            SkFont font(sample.typeface);
            font.setEdging(SkFont::Edging::kAlias);
 
            const char* text = sample.sampleText;
            SkFontMetrics metrics;
 
            for (SkScalar textSize : { 70, 150 }) {
                font.setSize(textSize);
                font.getMetrics(&metrics);
                // All typefaces should support subpixel mode
                font.setSubpixel(true);
 
                y += -metrics.fAscent;
 
                SkScalar x = 0;
                for (bool fakeBold : { false, true }) {
                    font.setEmbolden(fakeBold);
                    SkRect bounds;
                    SkScalar advance = font.measureText(text, strlen(text), SkTextEncoding::kUTF8,
                                                        &bounds, &textPaint);
                    canvas->drawSimpleText(text, strlen(text), SkTextEncoding::kUTF8,
                                           x, y, font, textPaint);
                    if ((false)) {
                        bounds.offset(x, y);
                        canvas->drawRect(bounds, boundsPaint);
                        SkRect advanceRect = SkRect::MakeLTRB(x, y + 2, x + advance, y + 4);
                        canvas->drawRect(advanceRect, advancePaint);
                    }
                    x += bounds.width() * 1.2;
                }
                y += metrics.fDescent + metrics.fLeading;
                x = 0;
            }
        }
    }

onOnceBeforeDraw()

void skiagm::ScaledEmojiRenderingGM::onOnceBeforeDraw ( )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 43 of file scaledemoji_rendering.cpp.

                                     {
        for (auto&& [i, format] : SkMakeEnumerate(formatsToTest)) {
            fontSamples[i] = ToolUtils::EmojiSample(format);
            if (!fontSamples[i].typeface) {
                fontSamples[i].typeface = ToolUtils::DefaultTypeface();
            }
        }
    }

Member Data Documentation

fontSamples

ToolUtils::EmojiTestSample skiagm::ScaledEmojiRenderingGM::fontSamples[std::size(formatsToTest)]

protected

Definition at line 42 of file scaledemoji_rendering.cpp.

formatsToTest

constexpr ToolUtils::EmojiFontFormat skiagm::ScaledEmojiRenderingGM::formatsToTest[]

staticconstexprprotected

Initial value:

= {
            ToolUtils::EmojiFontFormat::ColrV0,
            ToolUtils::EmojiFontFormat::Sbix,
            ToolUtils::EmojiFontFormat::Cbdt,
            ToolUtils::EmojiFontFormat::Test,
            ToolUtils::EmojiFontFormat::Svg,
    }

Definition at line 35 of file scaledemoji_rendering.cpp.

                                                                {
            ToolUtils::EmojiFontFormat::ColrV0,
            ToolUtils::EmojiFontFormat::Sbix,
            ToolUtils::EmojiFontFormat::Cbdt,
            ToolUtils::EmojiFontFormat::Test,
            ToolUtils::EmojiFontFormat::Svg,
    };

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

• third_party/skia/gm/scaledemoji_rendering.cpp