pub struct Dropdown<T: Clone> {
current_idx: usize,
btn: Button,
menu: Option<Menu<usize>>,
label: String,
is_persisten_split: bool,
choices: Vec<Choice<T>>,
}
Fields
current_idx: usize
btn: Button
label: String
is_persisten_split: bool
choices: Vec<Choice<T>>
Implementations
sourceimpl<T: 'static + PartialEq + Clone> Dropdown<T>
impl<T: 'static + PartialEq + Clone> Dropdown<T>
pub fn current_value(&self) -> T
pub(crate) fn current_value_label(&self) -> &str
Trait Implementations
sourceimpl<T: 'static + Clone> WidgetImpl for Dropdown<T>
impl<T: 'static + Clone> WidgetImpl for Dropdown<T>
sourcefn get_dims(&self) -> ScreenDims
fn get_dims(&self) -> ScreenDims
What width and height does the widget occupy? If this changes, be sure to set
redo_layout
to true in event
. Read more
sourcefn set_pos(&mut self, top_left: ScreenPt)
fn set_pos(&mut self, top_left: ScreenPt)
Your widget’s top left corner should be here. Handle mouse events and draw appropriately.
sourcefn event(&mut self, ctx: &mut EventCtx<'_>, output: &mut WidgetOutput)
fn event(&mut self, ctx: &mut EventCtx<'_>, output: &mut WidgetOutput)
Your chance to react to an event. Any side effects outside of this widget are communicated through the output. Read more
sourcefn draw(&self, g: &mut GfxCtx<'_>)
fn draw(&self, g: &mut GfxCtx<'_>)
Draw the widget. Be sure to draw relative to the top-left specified by set_pos
.
sourcefn can_restore(&self) -> bool
fn can_restore(&self) -> bool
If a new Panel is being created to replace an older one, all widgets have the chance to preserve state from the previous version. Read more
sourcefn restore(&mut self, ctx: &mut EventCtx<'_>, prev: &dyn WidgetImpl)
fn restore(&mut self, ctx: &mut EventCtx<'_>, prev: &dyn WidgetImpl)
Restore state from the previous version of this widget, with the same ID. Implementors must downcast. Read more
Auto Trait Implementations
impl<T> RefUnwindSafe for Dropdown<T> where
T: RefUnwindSafe,
impl<T> !Send for Dropdown<T>
impl<T> !Sync for Dropdown<T>
impl<T> Unpin for Dropdown<T> where
T: Unpin,
impl<T> UnwindSafe for Dropdown<T> where
T: UnwindSafe,
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcepub fn borrow_mut(&mut self) -> &mut T
pub fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<T> Downcast for T where
T: Any,
impl<T> Downcast for T where
T: Any,
pub fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
pub fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
Convert Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
. Read more
pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
Convert Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
. Read more
pub fn as_any(&self) -> &(dyn Any + 'static)
pub fn as_any(&self) -> &(dyn Any + 'static)
Convert &Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s. Read more
pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert &mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s. Read more
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Instruments this type with the provided Span
, returning an
Instrumented
wrapper. Read more
sourcefn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
impl<T> Same<T> for T
impl<T> Same<T> for T
type Output = T
type Output = T
Should always be Self