zoom

Documentation

Index

• Constants
• type Event
• type Handler
• type Option
  • func Speed(speed float64) Option
• type Type
• type Zoom
  • func With(options ...Option) *Zoom
  • func (z *Zoom) Handle(e Event)
  • func (z *Zoom) On(handler Handler)
• type Zoomer

Constants

const Move = Type("Zoom")

Types

type Event

type Event struct {
	Type       Type
	Dx         float64
	Dy         float64
	WheelDelta float64
	Zoom       float64
}

type Handler

type Handler func(Event)

type Option

type Option func() float64

func Speed

func Speed(speed float64) Option

type Type

type Type string

type Zoom

type Zoom struct {
	Speed float64
	// contains filtered or unexported fields
}

func With

func With(options ...Option) *Zoom

func (*Zoom) Handle

func (z *Zoom) Handle(e Event)

func (*Zoom) On

func (z *Zoom) On(handler Handler)

type Zoomer

type Zoomer interface {
	On(handler Handler)
}