Struct druid::widget::Stepper

pub struct Stepper { /* fields omitted */ }

A stepper widget for step-wise increasing and decreasing a value.

Implementations

impl Stepper

pub fn new() -> Self

pub fn with_range(self, min: f64, max: f64) -> Self

Set the range covered by this slider.

The default range is std::f64::MIN..std::f64::MAX.

pub fn with_step(self, step: f64) -> Self

Set the steppers amount by which the value increases or decreases.

The default step is 1.0.

pub fn with_wraparound(self, wrap: bool) -> Self

Set whether the stepper should wrap around the minimum/maximum values.

When wraparound is enabled incrementing above max behaves like this:

• if the previous value is < max it becomes max
• if the previous value is = max it becomes min Same logic applies for decrementing

The default is false.

Trait Implementations

impl Default for Stepper

fn default() -> Self

Returns the "default value" for a type.

impl Widget<f64> for Stepper

fn paint(&mut self, ctx: &mut PaintCtx, _data: &f64, env: &Env)

Paint the widget appearance.

fn layout(
    &mut self,
    _layout_ctx: &mut LayoutCtx,
    bc: &BoxConstraints,
    _data: &f64,
    env: &Env
) -> Size

Compute layout.

fn event(
    &mut self,
    ctx: &mut EventCtx,
    event: &Event,
    data: &mut f64,
    env: &Env
)

Handle an event.

fn lifecycle(
    &mut self,
    _ctx: &mut LifeCycleCtx,
    _event: &LifeCycle,
    _data: &f64,
    _env: &Env
)

Handle a life cycle notification.

fn update(
    &mut self,
    ctx: &mut UpdateCtx,
    old_data: &f64,
    data: &f64,
    _env: &Env
)

Handle a change of data.