SimpleStrokerSlide Class Reference

Inheritance diagram for SimpleStrokerSlide:

Public Member Functions
	SimpleStrokerSlide ()
bool	onChar (SkUnichar uni) override
void	draw (SkCanvas *canvas) override
Public Member Functions inherited from ClickHandlerSlide
bool	onMouse (SkScalar x, SkScalar y, skui::InputState clickState, skui::ModifierKey modifierKeys) final
Public Member Functions inherited from Slide
virtual SkISize	getDimensions () const
virtual void	gpuTeardown ()
virtual void	draw (SkCanvas *canvas)=0
virtual bool	animate (double nanos)
virtual void	load (SkScalar winWidth, SkScalar winHeight)
virtual void	resize (SkScalar winWidth, SkScalar winHeight)
virtual void	unload ()
virtual bool	onChar (SkUnichar c)
virtual bool	onMouse (SkScalar x, SkScalar y, skui::InputState state, skui::ModifierKey modifiers)
virtual bool	onGetControls (SkMetaData *)
virtual void	onSetControls (const SkMetaData &)
const SkString &	getName ()
Public Member Functions inherited from SkRefCntBase
	SkRefCntBase ()
virtual	~SkRefCntBase ()
bool	unique () const
void	ref () const
void	unref () const

Public Attributes
SkPoint	fPts [kN]

Protected Member Functions
Click *	onFindClickHandler (SkScalar x, SkScalar y, skui::ModifierKey modi) override
bool	onClick (ClickHandlerSlide::Click *) override
virtual Click *	onFindClickHandler (SkScalar x, SkScalar y, skui::ModifierKey modi)=0
virtual bool	onClick (Click *)=0

Additional Inherited Members
Protected Attributes inherited from Slide
SkString	fName

Detailed Description

Definition at line 353 of file SimpleStrokerSlide.cpp.

Constructor & Destructor Documentation

SimpleStrokerSlide()

SimpleStrokerSlide::SimpleStrokerSlide ( )

inline

Definition at line 363 of file SimpleStrokerSlide.cpp.

                         : fShowSkiaStroke(true), fShowHidden(true), fShowSkeleton(true) {
        fPts[0] = {500, 200};
        fPts[1] = {300, 200};
        fPts[2] = {100, 100};
 
        fPtsPaint.setAntiAlias(true);
        fPtsPaint.setStrokeWidth(10);
        fPtsPaint.setStrokeCap(SkPaint::kRound_Cap);
 
        fStrokePaint.setAntiAlias(true);
        fStrokePaint.setStyle(SkPaint::kStroke_Style);
        fStrokePaint.setColor(0x80FF0000);
 
        fMirrorStrokePaint.setAntiAlias(true);
        fMirrorStrokePaint.setStyle(SkPaint::kStroke_Style);
        fMirrorStrokePaint.setColor(0x80FFFF00);
 
        fNewFillPaint.setAntiAlias(true);
        fNewFillPaint.setColor(0x8000FF00);
 
        fHiddenPaint.setAntiAlias(true);
        fHiddenPaint.setStyle(SkPaint::kStroke_Style);
        fHiddenPaint.setColor(0xFF0000FF);
 
        fSkeletonPaint.setAntiAlias(true);
        fSkeletonPaint.setStyle(SkPaint::kStroke_Style);
        fSkeletonPaint.setColor(SK_ColorRED);
        fName = "SimpleStroker";
    }

Member Function Documentation

draw()

void SimpleStrokerSlide::draw ( SkCanvas *  canvas )

inlineoverridevirtual

Implements Slide.

Definition at line 416 of file SimpleStrokerSlide.cpp.

                                         {
        canvas->drawColor(0xFFEEEEEE);
 
        SkPath path;
        this->makePath(&path);
 
        fStrokePaint.setStrokeWidth(fWidth);
 
        // The correct result
        if (fShowSkiaStroke) {
            canvas->drawPath(path, fStrokePaint);
        }
 
        // Simple stroker result
        SkPathStroker2 stroker;
        SkPath fillPath = stroker.getFillPath(path, fStrokePaint);
        canvas->drawPath(fillPath, fNewFillPaint);
 
        if (fShowHidden) {
            canvas->drawPath(fillPath, fHiddenPaint);
        }
        if (fShowSkeleton) {
            canvas->drawPath(path, fSkeletonPaint);
        }
        canvas->drawPoints(SkCanvas::kPoints_PointMode, kN, fPts, fPtsPaint);
 
        // Draw a mirror but using Skia's stroker.
        canvas->translate(0, 400);
        fMirrorStrokePaint.setStrokeWidth(fWidth);
        canvas->drawPath(path, fMirrorStrokePaint);
        if (fShowHidden) {
            SkPath hidden;
            skpathutils::FillPathWithPaint(path, fStrokePaint, &hidden);
            canvas->drawPath(hidden, fHiddenPaint);
        }
        if (fShowSkeleton) {
            canvas->drawPath(path, fSkeletonPaint);
        }
    }

onChar()

bool SimpleStrokerSlide::onChar ( SkUnichar  uni )

inlineoverridevirtual

Reimplemented from Slide.

Definition at line 393 of file SimpleStrokerSlide.cpp.

                                        {
        switch (uni) {
            case '1':
                this->toggle(fShowSkeleton);
                return true;
            case '2':
                this->toggle(fShowSkiaStroke);
                return true;
            case '3':
                this->toggle(fShowHidden);
                return true;
            case '-':
                fWidth -= 5;
                return true;
            case '=':
                fWidth += 5;
                return true;
            default:
                break;
        }
        return false;
    }

onClick()

bool SimpleStrokerSlide::onClick ( ClickHandlerSlide::Click *  )

inlineoverrideprotectedvirtual

Override to track clicks. Return true as long as you want to track the pen/mouse.

Implements ClickHandlerSlide.

Definition at line 471 of file SimpleStrokerSlide.cpp.

{ return false; }

onFindClickHandler()

Click * SimpleStrokerSlide::onFindClickHandler ( SkScalar  x, SkScalar  y, skui::ModifierKey  modi  )

inlineoverrideprotectedvirtual

Return a Click object to handle the click. onClick will be called repeatedly with the latest mouse state tracked on the Click object until it returns false.

Implements ClickHandlerSlide.

Definition at line 457 of file SimpleStrokerSlide.cpp.

                                                                                     {
        const SkScalar tol = 4;
        const SkRect r = SkRect::MakeXYWH(x - tol, y - tol, tol * 2, tol * 2);
        for (int i = 0; i < kN; ++i) {
            if (r.intersects(SkRect::MakeXYWH(fPts[i].fX, fPts[i].fY, 1, 1))) {
                return new Click([this, i](Click* c) {
                    fPts[i] = c->fCurr;
                    return true;
                });
            }
        }
        return nullptr;
    }

Member Data Documentation

fPts

SkPoint SimpleStrokerSlide::fPts[kN]

Definition at line 361 of file SimpleStrokerSlide.cpp.

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

• third_party/skia/tools/viewer/SimpleStrokerSlide.cpp