skiagm::ScaledEmojiPerspectiveGM Class Reference

Inheritance diagram for skiagm::ScaledEmojiPerspectiveGM:

Public Member Functions
	ScaledEmojiPerspectiveGM (ToolUtils::EmojiFontFormat format)
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
void	onOnceBeforeDraw () override
SkString	getName () const override
SkISize	getISize () override
DrawResult	onDraw (SkCanvas *canvas, SkString *errorMsg) 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

Protected Attributes
ToolUtils::EmojiTestSample	fEmojiFont
SkString	fStripSpacesSampleText

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 151 of file scaledemoji.cpp.

Constructor & Destructor Documentation

ScaledEmojiPerspectiveGM()

skiagm::ScaledEmojiPerspectiveGM::ScaledEmojiPerspectiveGM ( ToolUtils::EmojiFontFormat  format )

inline

Definition at line 153 of file scaledemoji.cpp.

: fFormat(format) {}

Member Function Documentation

getISize()

SkISize skiagm::ScaledEmojiPerspectiveGM::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 178 of file scaledemoji.cpp.

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

getName()

SkString skiagm::ScaledEmojiPerspectiveGM::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 174 of file scaledemoji.cpp.

                                      {
        return SkString("scaledemojiperspective_") += ToolUtils::NameForFontFormat(fFormat);
    }

onDraw()

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

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 180 of file scaledemoji.cpp.

                                                                     {
        if (!fEmojiFont.typeface) {
            *errorMsg = SkStringPrintf("Unable to instantiate emoji test font of format %s.",
                                       ToolUtils::NameForFontFormat(fFormat).c_str());
            return DrawResult::kSkip;
        }
 
        canvas->drawColor(SK_ColorGRAY);
        SkMatrix taper;
        taper.setPerspY(-0.0025f);
 
        SkPaint paint;
        SkFont font(fEmojiFont.typeface, 40);
        sk_sp<SkTextBlob> blob = make_hpos_test_blob_utf8(fStripSpacesSampleText.c_str(), font);
 
        // draw text at different point sizes
        // Testing GPU bitmap path, SDF path with no scaling,
        // SDF path with scaling, path rendering with scaling
        SkFontMetrics metrics;
        font.getMetrics(&metrics);
        for (auto rotate : {0.0, 45.0, 90.0, 135.0, 180.0, 225.0, 270.0, 315.0}) {
            canvas->save();
            SkMatrix perspective;
            perspective.postTranslate(-600, -600);
            perspective.postConcat(taper);
            perspective.postRotate(rotate);
            perspective.postTranslate(600, 600);
            canvas->concat(perspective);
            SkScalar y = 670;
            for (int i = 0; i < 5; i++) {
 
                y += -metrics.fAscent;
 
                // Draw with an origin.
                canvas->drawTextBlob(blob, 565, y, paint);
 
                y += metrics.fDescent + metrics.fLeading;
            }
            canvas->restore();
        }
 
        return DrawResult::kOk;
    }

onOnceBeforeDraw()

void skiagm::ScaledEmojiPerspectiveGM::onOnceBeforeDraw ( )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 159 of file scaledemoji.cpp.

                                     {
        fEmojiFont = ToolUtils::EmojiSample(fFormat);
 
        int count = 0;
        const char* ch_ptr = fEmojiFont.sampleText;
        const char* ch_end = ch_ptr + strlen(ch_ptr);
        while (ch_ptr < ch_end && count < 2) {
            SkUnichar ch = SkUTF::NextUTF8(&ch_ptr, ch_end);
            if (ch != ' ') {
                fStripSpacesSampleText.appendUnichar(ch);
                ++count;
            }
        }
    }

Member Data Documentation

fEmojiFont

ToolUtils::EmojiTestSample skiagm::ScaledEmojiPerspectiveGM::fEmojiFont

protected

Definition at line 156 of file scaledemoji.cpp.

fStripSpacesSampleText

SkString skiagm::ScaledEmojiPerspectiveGM::fStripSpacesSampleText

protected

Definition at line 157 of file scaledemoji.cpp.

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

• third_party/skia/gm/scaledemoji.cpp