CubicResamplerSlide Class Reference

Inheritance diagram for CubicResamplerSlide:

Public Member Functions
	CubicResamplerSlide ()
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

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

Static Protected Member Functions
static float	pin_unitize (float min, float max, float value)
static SkPoint	pin_unitize (const SkRect &r, SkPoint p)

Additional Inherited Members
Protected Attributes inherited from Slide
SkString	fName

Detailed Description

Definition at line 206 of file XferSlide.cpp.

Constructor & Destructor Documentation

CubicResamplerSlide()

CubicResamplerSlide::CubicResamplerSlide ( )

inline

Definition at line 208 of file XferSlide.cpp.

                          {
        fName = "CubicResampler";
    }

Member Function Documentation

draw()

void CubicResamplerSlide::draw ( SkCanvas *  canvas )

inlineoverrideprotectedvirtual

Implements Slide.

Definition at line 225 of file XferSlide.cpp.

                                         {
        for (const auto& rec : fRecs) {
            rec.draw(canvas, fCubic);
        }
 
        SkPaint paint;
        paint.setAntiAlias(true);
        paint.setStroke(true);
        canvas->drawRect(fDomain, paint);
 
        paint.setColor(SK_ColorRED);
        paint.setStroke(false);
        SkPoint loc = SkMatrix::RectToRect({0,0,1,1}, fDomain).mapXY(fCubic.B, fCubic.C);
        canvas->drawCircle(loc.fX, loc.fY, 8, paint);
 
        SkString str;
        str.printf("B=%4.2f  C=%4.2f", fCubic.B, fCubic.C);
        SkFont font = ToolUtils::DefaultFont();
        font.setSize(25);
        font.setEdging(SkFont::Edging::kAntiAlias);
        paint.setColor(SK_ColorBLACK);
        canvas->drawSimpleText(str.c_str(), str.size(), SkTextEncoding::kUTF8,
                               fDomain.fLeft + 10, fDomain.fBottom + 40, font, paint);
    }

load()

void CubicResamplerSlide::load ( SkScalar  , SkScalar    )

inlineoverrideprotectedvirtual

Reimplemented from Slide.

Definition at line 213 of file XferSlide.cpp.

                                           {
        SkRect r = {10, 10, 200, 200};
        for (const char* name : {"images/mandrill_128.png",
                                 "images/rle.bmp",
                                 "images/example_4.png"}) {
            fRecs.push_back({ToolUtils::GetResourceAsImage(name), r});
            r.offset(0, r.height() + 10);
        }
        fDomain.setXYWH(r.fLeft + 3 * r.width() + 40, 50, 200, 200);
        fCubic = {.3f, .5f};
    }

onClick()

bool CubicResamplerSlide::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 272 of file XferSlide.cpp.

{ return false; }

onFindClickHandler()

Click * CubicResamplerSlide::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 261 of file XferSlide.cpp.

                                                                                {
        if (fDomain.contains(x, y)) {
            return new Click([this](Click* click) {
                auto [B, C] = pin_unitize(fDomain, click->fCurr);
                fCubic = {B, C};
                return true;
            });
        }
        return nullptr;
    }

pin_unitize() [1/2]

static SkPoint CubicResamplerSlide::pin_unitize ( const SkRect &  r, SkPoint  p  )

inlinestaticprotected

Definition at line 253 of file XferSlide.cpp.

                                                           {
        return {
            pin_unitize(r.fLeft, r.fRight,  p.fX),
            pin_unitize(r.fTop,  r.fBottom, p.fY),
        };
    }

pin_unitize() [2/2]

static float CubicResamplerSlide::pin_unitize ( float  min, float  max, float  value  )

inlinestaticprotected

Definition at line 250 of file XferSlide.cpp.

                                                                {
        return (std::min(std::max(value, min), max) - min) / (max - min);
    }

---

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

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