MegaStrokeSlide Class Reference

Inheritance diagram for MegaStrokeSlide:

Public Member Functions
	MegaStrokeSlide ()
bool	onChar (SkUnichar uni) override
void	draw (SkCanvas *canvas) override
void	resize (SkScalar w, SkScalar h) override
bool	animate (double) override
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

Additional Inherited Members
Protected Attributes inherited from Slide
SkString	fName

Detailed Description

Definition at line 13 of file MegaStrokeSlide.cpp.

Constructor & Destructor Documentation

MegaStrokeSlide()

MegaStrokeSlide::MegaStrokeSlide ( )

inline

Definition at line 15 of file MegaStrokeSlide.cpp.

                      {
        fClip.setLTRB(0, 0, 950, 600);
        fAngle = 0;
        fPlusMinus = 0;
        SkRandom rand;
        fMegaPath.reset();
        for (int index = 0; index < 921; ++index) {
            for (int segs = 0; segs < 40; ++segs) {
                fMegaPath.lineTo(SkIntToScalar(index), SkIntToScalar(rand.nextRangeU(500, 600)));
            }
        }
        fName = "MegaStroke";
    }

Member Function Documentation

animate()

bool MegaStrokeSlide::animate ( double  )

inlineoverridevirtual

Reimplemented from Slide.

Definition at line 65 of file MegaStrokeSlide.cpp.

{ return true; }

draw()

void MegaStrokeSlide::draw ( SkCanvas *  canvas )

inlineoverridevirtual

Implements Slide.

Definition at line 34 of file MegaStrokeSlide.cpp.

                                         {
        SkPaint paint;
        paint.setAntiAlias(true);
        paint.setARGB(255,255,153,0);
        paint.setStyle(SkPaint::kStroke_Style);
        paint.setStrokeWidth(1);
 
        canvas->save();
        canvas->clipRect(fClip);
        canvas->clear(SK_ColorWHITE);
        canvas->drawPath(fMegaPath, paint);
        canvas->restore();
 
        SkPaint divSimPaint;
        divSimPaint.setColor(SK_ColorBLUE);
        SkScalar x = SkScalarSin(fAngle * SK_ScalarPI / 180) * 200 + 250;
        SkScalar y = SkScalarCos(fAngle * SK_ScalarPI / 180) * 200 + 250;
 
        if ((fPlusMinus ^= 1)) {
            fAngle += 5;
        } else {
            fAngle -= 5;
        }
        SkRect divSim = SkRect::MakeXYWH(x, y, 100, 100);
        divSim.outset(30, 30);
        canvas->drawRect(divSim, divSimPaint);
        fClip = divSim;
    }

onChar()

bool MegaStrokeSlide::onChar ( SkUnichar  uni )

inlineoverridevirtual

Reimplemented from Slide.

Definition at line 29 of file MegaStrokeSlide.cpp.

                                        {
        fClip.setLTRB(0, 0, 950, 600);
        return true;
    }

resize()

void MegaStrokeSlide::resize ( SkScalar  w, SkScalar  h  )

inlineoverridevirtual

Reimplemented from Slide.

Definition at line 63 of file MegaStrokeSlide.cpp.

{ fClip.setWH(950, 600); }

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

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