skiagm::FontScalerGM Class Reference

Inheritance diagram for skiagm::FontScalerGM:

Public Member Functions
	FontScalerGM ()
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

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

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 23 of file fontscaler.cpp.

Constructor & Destructor Documentation

FontScalerGM()

skiagm::FontScalerGM::FontScalerGM ( )

inline

Definition at line 25 of file fontscaler.cpp.

                   {
        this->setBGColor(0xFFFFFFFF);
    }

Member Function Documentation

getISize()

SkISize skiagm::FontScalerGM::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 32 of file fontscaler.cpp.

{ return SkISize::Make(1450, 750); }

getName()

SkString skiagm::FontScalerGM::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 30 of file fontscaler.cpp.

{ return SkString("fontscaler"); }

onDraw()

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

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 34 of file fontscaler.cpp.

                                           {
        SkFont font = ToolUtils::DefaultPortableFont();
        font.setEdging(SkFont::Edging::kSubpixelAntiAlias);
        //With freetype the default (normal hinting) can be really ugly.
        //Most distros now set slight (vertical hinting only) in any event.
        font.setHinting(SkFontHinting::kSlight);
 
        const char* text = "Hamburgefons ooo mmm";
        const size_t textLen = strlen(text);
 
        for (int j = 0; j < 2; ++j) {
            // This used to do 6 iterations but it causes the N4 to crash in the MSAA4 config.
            for (int i = 0; i < 5; ++i) {
                SkScalar x = 10;
                SkScalar y = 20;
 
                SkAutoCanvasRestore acr(canvas, true);
                canvas->translate(SkIntToScalar(50 + i * 230),
                                  SkIntToScalar(20));
                canvas->rotate(SkIntToScalar(i * 5), x, y * 10);
 
                {
                    SkPaint p;
                    p.setAntiAlias(true);
                    SkRect r;
                    r.setLTRB(x - 3, 15, x - 1, 280);
                    canvas->drawRect(r, p);
                }
 
                for (int ps = 6; ps <= 22; ps++) {
                    font.setSize(SkIntToScalar(ps));
                    canvas->drawSimpleText(text, textLen, SkTextEncoding::kUTF8, x, y, font, SkPaint());
                    y += font.getMetrics(nullptr);
                }
            }
            canvas->translate(0, SkIntToScalar(360));
            font.setSubpixel(true);
            font.setLinearMetrics(true);
            font.setBaselineSnap(false);
        }
    }

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

• third_party/skia/gm/fontscaler.cpp