HalfPlaneCoonsSlide Class Reference

Inheritance diagram for HalfPlaneCoonsSlide:

Public Member Functions
	HalfPlaneCoonsSlide ()
void	load (SkScalar w, SkScalar h) override
void	draw (SkCanvas *canvas) override
bool	onChar (SkUnichar uni) override
Public Member Functions inherited from CameraSlide
SkM44	get44 (const SkRect &r) const
Public Member Functions inherited from Slide
virtual SkISize	getDimensions () const
virtual void	gpuTeardown ()
virtual bool	animate (double nanos)
virtual void	resize (SkScalar winWidth, SkScalar winHeight)
virtual void	unload ()
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 Member Functions inherited from ClickHandlerSlide
bool	onMouse (SkScalar x, SkScalar y, skui::InputState clickState, skui::ModifierKey modifierKeys) final

Protected Member Functions
Click *	onFindClickHandler (SkScalar x, SkScalar y, skui::ModifierKey modi) override
bool	onClick (Click *click) override

Additional Inherited Members
Protected Attributes inherited from Slide
SkString	fName

Detailed Description

Definition at line 562 of file ClipSlide.cpp.

Constructor & Destructor Documentation

HalfPlaneCoonsSlide()

HalfPlaneCoonsSlide::HalfPlaneCoonsSlide ( )

inline

Definition at line 573 of file ClipSlide.cpp.

{ fName = "halfplane-coons"; }

Member Function Documentation

draw()

void HalfPlaneCoonsSlide::draw ( SkCanvas *  canvas )

inlineoverridevirtual

Implements Slide.

Definition at line 593 of file ClipSlide.cpp.

                                         {
        SkPaint paint;
 
        canvas->save();
        canvas->concat(this->get44({0, 0, 300, 300}));
 
        const SkPoint* tex = nullptr;
        const SkColor* col = nullptr;
        if (!fShowSkeleton) {
            if (fShowTex) {
                paint.setShader(fShader);
                tex = fTex;
            } else {
                col = fColors;
            }
        }
        canvas->drawPatch(fPatch, col, tex, SkBlendMode::kSrc, paint);
        paint.setShader(nullptr);
 
        if (fShowHandles) {
            paint.setAntiAlias(true);
            paint.setStrokeCap(SkPaint::kRound_Cap);
            paint.setStrokeWidth(8);
            canvas->drawPoints(SkCanvas::kPoints_PointMode, 12, fPatch, paint);
            paint.setColor(SK_ColorWHITE);
            paint.setStrokeWidth(6);
            canvas->drawPoints(SkCanvas::kPoints_PointMode, 12, fPatch, paint);
        }
 
        canvas->restore();
    }

load()

void HalfPlaneCoonsSlide::load ( SkScalar  w, SkScalar  h  )

inlineoverridevirtual

Reimplemented from Slide.

Definition at line 575 of file ClipSlide.cpp.

                                               {
        fPatch[0] = {   0, 0 };
        fPatch[1] = { 100, 0 };
        fPatch[2] = { 200, 0 };
        fPatch[3] = { 300, 0 };
        fPatch[4] = { 300, 100 };
        fPatch[5] = { 300, 200 };
        fPatch[6] = { 300, 300 };
        fPatch[7] = { 200, 300 };
        fPatch[8] = { 100, 300 };
        fPatch[9] = {   0, 300 };
        fPatch[10] = {  0, 200 };
        fPatch[11] = {  0, 100 };
 
        fShader = ToolUtils::GetResourceAsImage("images/mandrill_256.png")
                          ->makeShader(SkSamplingOptions());
    }

onChar()

bool HalfPlaneCoonsSlide::onChar ( SkUnichar  uni )

inlineoverridevirtual

Reimplemented from CameraSlide.

Definition at line 625 of file ClipSlide.cpp.

                                        {
        switch (uni) {
            case 'h': fShowHandles = !fShowHandles; return true;
            case 'k': fShowSkeleton = !fShowSkeleton; return true;
            case 't': fShowTex = !fShowTex; return true;
            default: break;
        }
        return this->CameraSlide::onChar(uni);
    }

onClick()

bool HalfPlaneCoonsSlide::onClick ( Click *  )

inlineoverrideprotectedvirtual

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

Implements ClickHandlerSlide.

Definition at line 651 of file ClipSlide.cpp.

{ return false; }

onFindClickHandler()

Click * HalfPlaneCoonsSlide::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 636 of file ClipSlide.cpp.

                                                                                     {
        auto dist = [](SkPoint a, SkPoint b) { return (b - a).length(); };
 
        const float tol = 15;
        for (int i = 0; i < 12; ++i) {
            if (dist({x,y}, fPatch[i]) <= tol) {
                return new Click([this, i](Click* c) {
                    fPatch[i] = c->fCurr;
                    return true;
                });
            }
        }
        return nullptr;
    }

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

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