pub struct Switch { /* private fields */ }
Expand description
A switch that toggles a bool
.
Implementations§
source§impl Switch
impl Switch
sourcepub fn new() -> Switch
pub fn new() -> Switch
Create a new Switch
.
Examples found in repository?
examples/switches.rs (line 37)
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fn build_widget() -> impl Widget<DemoState> {
let mut col = Flex::column();
let mut row = Flex::row();
let switch = LensWrap::new(Switch::new(), DemoState::value);
let check_box = LensWrap::new(Checkbox::new(""), DemoState::value);
let switch_label = Label::new("Setting label");
row.add_child(Padding::new(5.0, switch_label));
row.add_child(Padding::new(5.0, switch));
row.add_child(Padding::new(5.0, check_box));
let stepper = LensWrap::new(
Stepper::new()
.with_range(0.0, 10.0)
.with_step(0.5)
.with_wraparound(false),
DemoState::stepper_value,
);
let mut textbox_row = Flex::row();
// TODO: Replace Parse usage with TextBox::with_formatter
#[allow(deprecated)]
let textbox = LensWrap::new(
Parse::new(TextBox::new()),
DemoState::stepper_value.map(|x| Some(*x), |x, y| *x = y.unwrap_or(0.0)),
);
textbox_row.add_child(Padding::new(5.0, textbox));
textbox_row.add_child(Padding::new(5.0, stepper.center()));
let mut label_row = Flex::row();
let label = Label::new(|data: &DemoState, _env: &_| {
format!("Stepper value: {0:.2}", data.stepper_value)
});
label_row.add_child(Padding::new(5.0, label));
col.set_main_axis_alignment(MainAxisAlignment::Center);
col.add_child(Padding::new(5.0, row));
col.add_child(Padding::new(5.0, textbox_row));
col.add_child(Padding::new(5.0, label_row));
col.center()
}
More examples
examples/flex.rs (line 273)
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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()
}
}
examples/disabled.rs (line 89)
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fn main_widget() -> impl Widget<AppData> {
Flex::column()
.with_child(named_child("text:", TextBox::new().lens(AppData::text)))
.with_default_spacer()
.with_child(
named_child("text (disabled):", TextBox::new().lens(AppData::text))
.disabled_if(|data, _| data.disabled),
)
.with_default_spacer()
.with_child(named_child("text:", TextBox::new().lens(AppData::text)))
.with_default_spacer()
.with_child(
named_child("text (disabled):", TextBox::new().lens(AppData::text))
.disabled_if(|data, _| data.disabled),
)
.with_default_spacer()
.with_default_spacer()
.with_child(
named_child(
"value (disabled):",
Slider::new().with_range(0.0, 10.0).lens(AppData::value),
)
.disabled_if(|data, _| data.disabled),
)
.with_default_spacer()
.with_child(
named_child(
"value (disabled):",
Stepper::new()
.with_range(0.0, 10.0)
.with_step(0.5)
.lens(AppData::value),
)
.disabled_if(|data, _| data.disabled),
)
.with_default_spacer()
.with_child(
named_child(
"option (disabled):",
Checkbox::new("option").lens(AppData::option),
)
.disabled_if(|data, _| data.disabled),
)
.with_default_spacer()
.with_child(
named_child("option (disabled):", Switch::new().lens(AppData::option))
.disabled_if(|data, _| data.disabled),
)
.with_default_spacer()
.with_child(
Flex::row()
.with_child(
Button::new("-")
.on_click(|_, data: &mut f64, _| *data -= 1.0)
.disabled_if(|data, _| *data < 1.0),
)
.with_default_spacer()
.with_child(Label::dynamic(|data: &f64, _| data.to_string()))
.with_default_spacer()
.with_child(
Button::new("+")
.on_click(|_, data: &mut f64, _| *data += 1.0)
.disabled_if(|data, _| *data > 9.0),
)
.lens(AppData::value)
.disabled_if(|data: &AppData, _| data.disabled),
)
.with_default_spacer()
.with_default_spacer()
.with_default_spacer()
.with_child(Checkbox::new("disabled").lens(AppData::disabled))
.with_default_spacer()
.cross_axis_alignment(CrossAxisAlignment::End)
.align_horizontal(UnitPoint::CENTER)
}
Trait Implementations§
source§impl Widget<bool> for Switch
impl Widget<bool> for Switch
source§fn event(
&mut self,
ctx: &mut EventCtx<'_, '_>,
event: &Event,
data: &mut bool,
env: &Env
)
fn event( &mut self, ctx: &mut EventCtx<'_, '_>, event: &Event, data: &mut bool, env: &Env )
Handle an event. Read more
source§fn lifecycle(
&mut self,
ctx: &mut LifeCycleCtx<'_, '_>,
event: &LifeCycle,
_data: &bool,
env: &Env
)
fn lifecycle( &mut self, ctx: &mut LifeCycleCtx<'_, '_>, event: &LifeCycle, _data: &bool, env: &Env )
Handle a life cycle notification. Read more
source§fn update(
&mut self,
ctx: &mut UpdateCtx<'_, '_>,
old_data: &bool,
data: &bool,
_env: &Env
)
fn update( &mut self, ctx: &mut UpdateCtx<'_, '_>, old_data: &bool, data: &bool, _env: &Env )
source§fn layout(
&mut self,
ctx: &mut LayoutCtx<'_, '_>,
bc: &BoxConstraints,
_data: &bool,
env: &Env
) -> Size
fn layout( &mut self, ctx: &mut LayoutCtx<'_, '_>, bc: &BoxConstraints, _data: &bool, env: &Env ) -> Size
Compute layout. Read more
source§fn paint(&mut self, ctx: &mut PaintCtx<'_, '_, '_>, data: &bool, env: &Env)
fn paint(&mut self, ctx: &mut PaintCtx<'_, '_, '_>, data: &bool, env: &Env)
Paint the widget appearance. Read more
source§fn compute_max_intrinsic(
&mut self,
axis: Axis,
ctx: &mut LayoutCtx<'_, '_>,
bc: &BoxConstraints,
data: &T,
env: &Env
) -> f64
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. Read more
Auto Trait Implementations§
impl !RefUnwindSafe for Switch
impl !Send for Switch
impl !Sync for Switch
impl Unpin for Switch
impl !UnwindSafe for Switch
Blanket Implementations§
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
§impl<T> RoundFrom<T> for T
impl<T> RoundFrom<T> for T
§fn round_from(x: T) -> T
fn round_from(x: T) -> T
Performs the conversion.
§impl<T, U> RoundInto<U> for Twhere
U: RoundFrom<T>,
impl<T, U> RoundInto<U> for Twhere U: RoundFrom<T>,
§fn round_into(self) -> U
fn round_into(self) -> U
Performs the conversion.