Struct kas::widget::ComboBox

pub struct ComboBox<M: Clone + Debug + 'static> { /* fields omitted */ }

A pop-up multiple choice menu

Methods

impl<M: Clone + Debug + 'static> ComboBox<M>

pub fn new<T, I: IntoIterator<Item = T>>(iter: I) -> Self where
    ComboBox<M>: FromIterator<T>, 

Construct a combobox

A combobox presents a menu with a fixed set of choices when clicked. Each choice has some corresponding message of type M which is emitted by the event handler when this choice is selected.

This constructor may be used with an iterator compatible with any FromIterator for ComboBox, for example:

let combobox = ComboBox::<i32>::new([("one", 1), ("two", 2), ("three", 3)].iter());

pub fn text(&self) -> &str

Get the text of the active choice

pub fn push<T: Into<CowString>>(&mut self, label: CowString, msg: M) -> TkAction

Add a choice to the combobox, in last position

Trait Implementations

impl<M: Clone + Debug + 'static> Clone for ComboBox<M>

fn clone(&self) -> ComboBox<M>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<M: Debug + Clone + 'static> Debug for ComboBox<M>

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

Formats the value using the given formatter.

impl<'a, M: Clone + Debug + 'static> FromIterator<&'a (&'static str, M)> for ComboBox<M>

fn from_iter<I: IntoIterator<Item = &'a (&'static str, M)>>(iter: I) -> Self

Creates a value from an iterator.

impl<T: Into<AccelString>, M: Clone + Debug> FromIterator<(T, M)> for ComboBox<M>

fn from_iter<I: IntoIterator<Item = (T, M)>>(iter: I) -> Self

Creates a value from an iterator.

impl<M: Clone + Debug + 'static> Handler for ComboBox<M>

type Msg = M

Type of message returned by this widget

fn handle(&mut self, mgr: &mut Manager, event: Event) -> Response<M>

Handle an event and return a user-defined message

fn activation_via_press(&self) -> bool

Generic handler: translate presses to activations

impl<M: Clone + Debug + 'static> Layout for ComboBox<M>

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

Iterate through children in spatial order

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

Find a widget by coordinate

impl<M: Clone + Debug + 'static> SendEvent for ComboBox<M>

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

Send an event

impl<M: Clone + Debug + 'static> Widget for ComboBox<M>

impl<M: Clone + Debug + 'static> WidgetChildren for ComboBox<M>

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<M: Clone + Debug + 'static> WidgetConfig for ComboBox<M>

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<M: Clone + Debug + 'static> WidgetCore for ComboBox<M>

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