animation

Documentation

Index

• Variables
• type AnimatedPositioned
  • func (o AnimatedPositioned) FrameCount() int
  • func (o AnimatedPositioned) Paint(bounds image.Rectangle, frameIdx int) image.Image
• type CubicBezierCurve
  • func (cb CubicBezierCurve) Transform(t float64) float64
• type Curve
  • func ParseCurve(str string) (Curve, error)
• type CustomCurve
  • func (cc CustomCurve) Transform(t float64) float64
• type LinearCurve
  • func (lc LinearCurve) Transform(t float64) float64

Variables

var DefaultCurve = LinearCurve{}

var EaseIn = CubicBezierCurve{0.3, 0, 1, 1}

var EaseInOut = CubicBezierCurve{0.65, 0, 0.35, 1}

TODO: figure out if what curve to use here. unless we're going back to Ivo's curve (0.3, 0, 0, 1), make sure to update the unit tests

var EaseInOut = CubicBezierCurve{0.3, 0, 0, 1}

var EaseOut = CubicBezierCurve{0, 0, 0, 1}

Types

type AnimatedPositioned

type AnimatedPositioned struct {
	render.Widget
	Child    render.Widget `starlark:"child,required"`
	XStart   int           `starlark:"x_start"`
	XEnd     int           `starlark:"x_end"`
	YStart   int           `starlark:"y_start"`
	YEnd     int           `starlark:"y_end"`
	Duration int           `starlark:"duration,required"`
	Curve    Curve         `starlark:"curve,required"`
	Delay    int           `starlark:"delay"`
	Hold     int           `starlark:"hold"`
}

Animate a widget from start to end coordinates.

DOC(Child): Widget to animate DOC(XStart): Horizontal start coordinate DOC(XEnd): Horizontal end coordinate DOC(YStart): Vertical start coordinate DOC(YEnd): Vertical end coordinate DOC(Duration): Duration of animation in frames DOC(Curve): Easing curve to use, default is 'linear' DOC(Delay): Delay before animation in frames DOC(Hold): Delay after animation in frames

func (AnimatedPositioned) FrameCount

func (o AnimatedPositioned) FrameCount() int

func (AnimatedPositioned) Paint

func (o AnimatedPositioned) Paint(bounds image.Rectangle, frameIdx int) image.Image

type CubicBezierCurve

type CubicBezierCurve struct {
	// contains filtered or unexported fields
}

Bezier curve defined by a, b, c and d.

func (CubicBezierCurve) Transform

func (cb CubicBezierCurve) Transform(t float64) float64

type Curve

type Curve interface {
	Transform(t float64) float64
}

func ParseCurve

func ParseCurve(str string) (Curve, error)

type CustomCurve

type CustomCurve struct {
	Function *starlark.Function
}

Custom curve implemented as a starlark function

func (CustomCurve) Transform

func (cc CustomCurve) Transform(t float64) float64

type LinearCurve

type LinearCurve struct{}

Linear curve moving from 0 to 1 (wait for it...) linearly

func (LinearCurve) Transform

func (lc LinearCurve) Transform(t float64) float64