skiagm::MixedTextBlobsGM Class Reference

Inheritance diagram for skiagm::MixedTextBlobsGM:

Public Member Functions
	MixedTextBlobsGM ()
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

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 46 of file mixedtextblobs.cpp.

Constructor & Destructor Documentation

MixedTextBlobsGM()

skiagm::MixedTextBlobsGM::MixedTextBlobsGM ( )

inline

Definition at line 48 of file mixedtextblobs.cpp.

{ }

Member Function Documentation

getISize()

SkISize skiagm::MixedTextBlobsGM::getISize ( )

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 112 of file mixedtextblobs.cpp.

{ return SkISize::Make(kWidth, kHeight); }

getName()

SkString skiagm::MixedTextBlobsGM::getName ( ) const

inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 110 of file mixedtextblobs.cpp.

{ return SkString("mixedtextblobs"); }

onDraw()

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

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 114 of file mixedtextblobs.cpp.

                                           {
 
        canvas->drawColor(SK_ColorGRAY);
 
        SkPaint paint;
 
        // setup work needed to draw text with different clips
        paint.setColor(SK_ColorBLACK);
        canvas->translate(10, 40);
 
        // compute the bounds of the text and setup some clips
        SkRect bounds = fBlob->bounds();
 
        const SkScalar boundsHalfWidth = bounds.width() * SK_ScalarHalf;
        const SkScalar boundsHalfHeight = bounds.height() * SK_ScalarHalf;
        const SkScalar boundsQuarterWidth = boundsHalfWidth * SK_ScalarHalf;
        const SkScalar boundsQuarterHeight = boundsHalfHeight * SK_ScalarHalf;
 
        SkRect upperLeftClip = SkRect::MakeXYWH(bounds.left(), bounds.top(),
                                                boundsHalfWidth, boundsHalfHeight);
        SkRect lowerRightClip = SkRect::MakeXYWH(bounds.centerX(), bounds.centerY(),
                                                 boundsHalfWidth, boundsHalfHeight);
        SkRect interiorClip = bounds;
        interiorClip.inset(boundsQuarterWidth, boundsQuarterHeight);
 
        const SkRect clipRects[] = { bounds, upperLeftClip, lowerRightClip, interiorClip};
 
        size_t count = sizeof(clipRects) / sizeof(SkRect);
        for (size_t x = 0; x < count; ++x) {
            draw_blob(canvas, fBlob.get(), paint, clipRects[x]);
            if (x == (count >> 1) - 1) {
                canvas->translate(SkScalarFloorToScalar(bounds.width() + SkIntToScalar(25)),
                                  -(x * SkScalarFloorToScalar(bounds.height() +
                                    SkIntToScalar(25))));
            } else {
                canvas->translate(0, SkScalarFloorToScalar(bounds.height() + SkIntToScalar(25)));
            }
        }
    }

onOnceBeforeDraw()

void skiagm::MixedTextBlobsGM::onOnceBeforeDraw ( )

inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 51 of file mixedtextblobs.cpp.

                                     {
        fEmojiTypeface      = ToolUtils::PlanetTypeface();
        fEmojiText = "♁♃";
        fReallyBigATypeface = ToolUtils::CreateTypefaceFromResource("fonts/ReallyBigA.ttf");
        if (!fReallyBigATypeface) {
            fReallyBigATypeface = ToolUtils::DefaultPortableTypeface();
        }
 
        SkTextBlobBuilder builder;
 
        // make textblob
        // Text so large we draw as paths
        SkFont font(ToolUtils::DefaultPortableTypeface(), 385);
        font.setEdging(SkFont::Edging::kAlias);
        const char* text = "O";
 
        SkRect bounds;
        font.measureText(text, strlen(text), SkTextEncoding::kUTF8, &bounds);
 
        SkScalar yOffset = bounds.height();
        ToolUtils::add_to_text_blob(&builder, text, font, 10, yOffset);
        SkScalar corruptedAx = bounds.width();
        SkScalar corruptedAy = yOffset;
 
        const SkScalar boundsHalfWidth = bounds.width() * SK_ScalarHalf;
        const SkScalar boundsHalfHeight = bounds.height() * SK_ScalarHalf;
 
        SkScalar xOffset = boundsHalfWidth;
        yOffset = boundsHalfHeight;
 
        // LCD
        font.setSize(32);
        font.setEdging(SkFont::Edging::kSubpixelAntiAlias);
        font.setSubpixel(true);
        text = "LCD!!!!!";
        font.measureText(text, strlen(text), SkTextEncoding::kUTF8, &bounds);
        ToolUtils::add_to_text_blob(&builder,
                                    text,
                                    font,
                                    xOffset - bounds.width() * 0.25f,
                                    yOffset - bounds.height() * 0.5f);
 
        // color emoji font with large glyph
        if (fEmojiTypeface) {
            font.setEdging(SkFont::Edging::kAlias);
            font.setSubpixel(false);
            font.setTypeface(fEmojiTypeface);
            font.measureText(fEmojiText, strlen(fEmojiText), SkTextEncoding::kUTF8, &bounds);
            ToolUtils::add_to_text_blob(&builder, fEmojiText, font, xOffset, yOffset);
        }
 
        // outline font with large glyph
        font.setSize(12);
        text = "aA";
        font.setTypeface(fReallyBigATypeface);
        ToolUtils::add_to_text_blob(&builder, text, font, corruptedAx, corruptedAy);
        fBlob = builder.make();
    }

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

• third_party/skia/gm/mixedtextblobs.cpp