Struct kas::widget::Slider

pub struct Slider<T: SliderType, D: Directional> { /* fields omitted */ }

A slider

Sliders allow user input of a value from a fixed range.

Methods

impl<T: SliderType, D: Directional + Default> Slider<T, D>

pub fn new(min: T, max: T, step: T) -> Self

Construct a slider

Values vary between the given min and max. When keyboard navigation is used, arrow keys will increment the value by step and page up/down keys by step * 16.

The initial value defaults to the range's lower bound but may be specified via Slider::with_value.

impl<T: SliderType, D: Directional> Slider<T, D>

pub fn new_with_direction(min: T, max: T, step: T, direction: D) -> Self

Construct a slider with the given direction

Values vary between the given min and max. When keyboard navigation is used, arrow keys will increment the value by step and page up/down keys by step * 16.

The initial value defaults to the range's lower bound but may be specified via Slider::with_value.

pub fn with_value(self, value: T) -> Self

Set the initial value

pub fn value(&self) -> T

Get the current value

pub fn set_value(&mut self, value: T) -> TkAction

Set the value

Returns TkAction::Redraw if a redraw is required.

Trait Implementations

impl<T: Clone + SliderType, D: Clone + Directional> Clone for Slider<T, D>

fn clone(&self) -> Slider<T, D>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Debug + SliderType, D: Debug + Directional> Debug for Slider<T, D>

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

Formats the value using the given formatter.

impl<T: Default + SliderType, D: Default + Directional> Default for Slider<T, D>

fn default() -> Slider<T, D>

Returns the "default value" for a type.

impl<T: SliderType, D: Directional> Handler for Slider<T, D>

type Msg = T

Type of message returned by this widget

fn activation_via_press(&self) -> bool

Generic handler: translate presses to activations

fn handle(&mut self, _: &mut Manager, event: Event) -> Response<Self::Msg>

Handle an event and return a user-defined message

impl<T: SliderType, D: Directional> Layout for Slider<T, D>

fn size_rules(
    &mut self,
    size_handle: &mut dyn SizeHandle,
    axis: AxisInfo
) -> SizeRules

Get size rules for the given axis

fn set_rect(&mut self, rect: Rect, align: AlignHints)

Apply a given rect to self

fn find_id(&self, coord: Coord) -> Option<WidgetId>

Find a widget by coordinate

fn draw(
    &self,
    draw_handle: &mut dyn DrawHandle,
    mgr: &ManagerState,
    disabled: bool
)

Draw a widget and its children

fn translation(&self, _child_index: usize) -> Coord

Get translation of a child

fn spatial_range(&self) -> (usize, usize)

Iterate through children in spatial order

impl<T: SliderType, D: Directional> SendEvent for Slider<T, D>

fn send(
    &mut self,
    mgr: &mut Manager,
    id: WidgetId,
    event: Event
) -> Response<Self::Msg>

Send an event

impl<T: SliderType, D: Directional> Widget for Slider<T, D>

impl<T: SliderType, D: Directional> WidgetChildren for Slider<T, D>

fn len(&self) -> usize

Get the number of child widgets

fn get(&self, _index: usize) -> Option<&dyn WidgetConfig>

Get a reference to a child widget by index, or None if the index is out of bounds.

fn get_mut(&mut self, _index: usize) -> Option<&mut dyn WidgetConfig>

Mutable variant of get

fn is_ancestor_of(&self, id: WidgetId) -> bool

Check whether id is a descendant

fn find(&self, id: WidgetId) -> Option<&dyn WidgetConfig>

Find a child widget by identifier

fn find_mut(&mut self, id: WidgetId) -> Option<&mut dyn WidgetConfig>

Find a child widget by identifier

fn walk(&self, f: &mut dyn FnMut(&dyn WidgetConfig))

Walk through all widgets, calling f once on each.

fn walk_mut(&mut self, f: &mut dyn FnMut(&mut dyn WidgetConfig))

Walk through all widgets, calling f once on each.

impl<T: SliderType, D: Directional> WidgetConfig for Slider<T, D>

fn key_nav(&self) -> bool

Is this widget navigable via Tab key?

fn cursor_icon(&self) -> CursorIcon

Which cursor icon should be used on hover?

fn configure(&mut self, _: &mut Manager)

Configure widget

fn configure_recurse<'a, 'b>(&mut self, cmgr: ConfigureManager<'a, 'b>)

Configure self and children

impl<T: SliderType, D: Directional> WidgetCore for Slider<T, D>

fn as_any(&self) -> &dyn Any

Get self as type Any

fn as_any_mut(&mut self) -> &mut dyn Any

Get self as type Any (mutable)

fn core_data(&self) -> &CoreData

Get direct access to the CoreData providing property storage.

fn core_data_mut(&mut self) -> &mut CoreData

fn widget_name(&self) -> &'static str

Get the name of the widget struct

fn as_widget(&self) -> &dyn WidgetConfig

Erase type

fn as_widget_mut(&mut self) -> &mut dyn WidgetConfig

Erase type

fn id(&self) -> WidgetId

Get the widget's numeric identifier

fn is_disabled(&self) -> bool

Get whether the widget is disabled

fn set_disabled(&mut self, disabled: bool) -> TkAction

Get the disabled state of a widget

fn rect(&self) -> Rect

Get the widget's region, relative to its parent.

fn input_state(&self, mgr: &ManagerState, disabled: bool) -> InputState

Construct InputState