skiagm::FontScalerDistortableGM Class Reference

Inheritance diagram for skiagm::FontScalerDistortableGM:

Public Member Functions
	FontScalerDistortableGM ()
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

Private Member Functions
SkString	getName () const override
SkISize	getISize () override
bool	onGetControls (SkMetaData *controls) override
void	onSetControls (const SkMetaData &controls) override
void	onOnceBeforeDraw () override
DrawResult	onDraw (SkCanvas *canvas, SkString *errorMsg) override

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 []
Protected Member Functions inherited from skiagm::GM
virtual DrawResult	onGpuSetup (SkCanvas *, SkString *, GraphiteTestContext *)
virtual void	onGpuTeardown ()
virtual void	onDraw (SkCanvas *)
virtual bool	onAnimate (double)
GraphiteTestContext *	graphiteTestContext () const

Detailed Description

Definition at line 34 of file fontscalerdistortable.cpp.

Constructor & Destructor Documentation

FontScalerDistortableGM()

skiagm::FontScalerDistortableGM::FontScalerDistortableGM ( )

inline

Definition at line 36 of file fontscalerdistortable.cpp.

                              {
        this->setBGColor(0xFFFFFFFF);
    }

Member Function Documentation

getISize()

SkISize skiagm::FontScalerDistortableGM::getISize ( )

inlineoverrideprivatevirtual

Implements skiagm::GM.

Definition at line 43 of file fontscalerdistortable.cpp.

{ return SkISize::Make(550, 700); }

getName()

SkString skiagm::FontScalerDistortableGM::getName ( ) const

inlineoverrideprivatevirtual

Implements skiagm::GM.

Definition at line 41 of file fontscalerdistortable.cpp.

{ return SkString("fontscalerdistortable"); }

onDraw()

DrawResult skiagm::FontScalerDistortableGM::onDraw ( SkCanvas *  canvas, SkString *  errorMsg  )

inlineoverrideprivatevirtual

Reimplemented from skiagm::GM.

Definition at line 135 of file fontscalerdistortable.cpp.

                                                                     {
        if (fDirty) {
            this->updateTypefaces();
        }
 
        SkPaint paint;
        paint.setAntiAlias(true);
        SkFont font;
        font.setEdging(SkFont::Edging::kSubpixelAntiAlias);
 
        const char* text = "abc";
        const size_t textLen = strlen(text);
 
        for (int row = 0; row < rows; ++row) {
            for (int col = 0; col < cols; ++col) {
                SkScalar x = SkIntToScalar(10);
                SkScalar y = SkIntToScalar(20);
 
                font.setTypeface(typeface[row][col] ? typeface[row][col] :
                                                      ToolUtils::DefaultPortableTypeface());
 
                SkAutoCanvasRestore acr(canvas, true);
                canvas->translate(SkIntToScalar(30 + col * 100), SkIntToScalar(20));
                canvas->rotate(SkIntToScalar(col * 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, paint);
                    y += font.getMetrics(nullptr);
                }
            }
            canvas->translate(0, SkIntToScalar(360));
            font.setSubpixel(true);
            font.setLinearMetrics(true);
            font.setBaselineSnap(false);
        }
        return DrawResult::kOk;
    }

onGetControls()

bool skiagm::FontScalerDistortableGM::onGetControls ( SkMetaData *  controls )

inlineoverrideprivatevirtual

Reimplemented from skiagm::GM.

Definition at line 50 of file fontscalerdistortable.cpp.

                                                      {
        controls->setBool("Override", fOverride);
        return fVariationSliders.writeControls(controls);
    }

onOnceBeforeDraw()

void skiagm::FontScalerDistortableGM::onOnceBeforeDraw ( )

inlineoverrideprivatevirtual

Reimplemented from skiagm::GM.

Definition at line 72 of file fontscalerdistortable.cpp.

                                     {
        constexpr SkFourByteTag wght = SkSetFourByteTag('w','g','h','t');
        //constexpr SkFourByteTag wdth = SkSetFourByteTag('w','d','t','h');
        fInfo = {
            ToolUtils::CreateTypefaceFromResource("fonts/Distortable.ttf"), wght, 0.5f, 2.0f
            //SkTypeface::MakeFromFile("/Library/Fonts/Skia.ttf"), wght, 0.48f, 3.2f
            //ToolUtils::CreateTestTypeface("Skia", SkFontStyle()), wdth, 0.62f, 1.3f
            //SkTypeface::MakeFromFile("/System/Library/Fonts/SFNS.ttf"), wght, 100.0f, 900.0f
            //ToolUtils::CreateTestTypeface(".SF NS", SkFontStyle()), wght, 100.0f, 900.0f
        };
 
        if (!fInfo.distortable) {
            fInfo.distortable = ToolUtils::DefaultPortableTypeface();
        }
        SkASSERT(fInfo.distortable);
        fVariationSliders = ToolUtils::VariationSliders(fInfo.distortable.get());
    }

onSetControls()

void skiagm::FontScalerDistortableGM::onSetControls ( const SkMetaData &  controls )

inlineoverrideprivatevirtual

Reimplemented from skiagm::GM.

Definition at line 55 of file fontscalerdistortable.cpp.

                                                            {
        bool oldOverride = fOverride;
        controls.findBool("Override", &fOverride);
        if (fOverride != oldOverride) {
            fDirty = true;
        }
 
        return fVariationSliders.readControls(controls, &fDirty);
    }

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

• third_party/skia/gm/fontscalerdistortable.cpp