Struct druid::widget::ProgressBar

pub struct ProgressBar;

A progress bar, displaying a numeric progress value.

This type impls Widget<f64>, expecting a float in the range 0.0..1.0.

Implementations

impl ProgressBar

pub fn new() -> ProgressBar

Return a new ProgressBar.

Examples found in repository

examples/flex.rs (line 277)

fn build_widget(state: &Params) -> Box<dyn Widget<AppState>> {
    let mut flex = match state.axis {
        FlexType::Column => Flex::column(),
        FlexType::Row => Flex::row(),
    }
    .cross_axis_alignment(state.cross_alignment)
    .main_axis_alignment(state.main_alignment)
    .must_fill_main_axis(state.fill_major_axis);

    flex.add_child(
        TextBox::new()
            .with_placeholder("Sample text")
            .lens(DemoState::input_text),
    );
    space_if_needed(&mut flex, state);

    flex.add_child(
        Button::new("Clear").on_click(|_ctx, data: &mut DemoState, _env| {
            data.input_text.clear();
            data.enabled = false;
            data.volume = 0.0;
        }),
    );

    space_if_needed(&mut flex, state);

    flex.add_child(
        Label::new(|data: &DemoState, _: &Env| data.input_text.clone()).with_text_size(32.0),
    );
    space_if_needed(&mut flex, state);
    flex.add_child(Checkbox::new("Demo").lens(DemoState::enabled));
    space_if_needed(&mut flex, state);
    flex.add_child(Switch::new().lens(DemoState::enabled));
    space_if_needed(&mut flex, state);
    flex.add_child(Slider::new().lens(DemoState::volume));
    space_if_needed(&mut flex, state);
    flex.add_child(ProgressBar::new().lens(DemoState::volume));
    space_if_needed(&mut flex, state);
    flex.add_child(
        Stepper::new()
            .with_range(0.0, 1.0)
            .with_step(0.1)
            .with_wraparound(true)
            .lens(DemoState::volume),
    );

    let mut flex = SizedBox::new(flex);
    if state.fix_minor_axis {
        match state.axis {
            FlexType::Row => flex = flex.height(200.),
            FlexType::Column => flex = flex.width(200.),
        }
    }
    if state.fix_major_axis {
        match state.axis {
            FlexType::Row => flex = flex.width(600.),
            FlexType::Column => flex = flex.height(300.),
        }
    }

    let flex = flex
        .padding(8.0)
        .border(Color::grey(0.6), 2.0)
        .rounded(5.0)
        .lens(AppState::demo_state);

    if state.debug_layout {
        flex.debug_paint_layout().boxed()
    } else {
        flex.boxed()
    }
}

Trait Implementations

impl Clone for ProgressBar

fn clone(&self) -> ProgressBar

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ProgressBar

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ProgressBar

fn default() -> ProgressBar

Returns the “default value” for a type.

impl Widget<f64> for ProgressBar

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 )

Update the widget’s appearance in response to a change in the app’s Data or Env.

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

Compute layout.

fn paint(&mut self, ctx: &mut PaintCtx<'_, '_, '_>, data: &f64, env: &Env)

Paint the widget appearance.

fn compute_max_intrinsic( &mut self, axis: Axis, ctx: &mut LayoutCtx<'_, '_>, bc: &BoxConstraints, data: &T, env: &Env ) -> f64

Computes max intrinsic/preferred dimension of a widget on the provided axis.