Struct prototty_common::MenuInstance

pub struct MenuInstance<T: Copy> { /* fields omitted */ }

An instance of a menu, with a selected entry. When a MenuInstance is rendered, the currently-selected entry is rendered using the Menu's selected_info.

Methods

impl<T: Copy> MenuInstance<T>

fn new(menu: Menu<T>) -> Option<Self>

Create a new MenuInstance with the first entry selected. Returns None if the Menu has 0 elements.

fn with_index(menu: Menu<T>, index: usize) -> Option<Self>

Create a new MenuInstance with the given index selected. Returns None if index >= menu.entries.len().

fn index(&self) -> usize

Returns the current index

fn set_index(&mut self, index: usize)

Sets the index, if the specified index < menu.entries.len()

fn up(&mut self)

Select the entry above the current selection, unless the first entry is currently selected.

fn down(&mut self)

Select the entry below the current selection, unless the last entry is currently selected.

fn selected(&self) -> T

Returns a copy of the currently selected entry's value.

fn tick<I>(&mut self, inputs: I) -> Option<MenuOutput<T>> where
    I: IntoIterator<Item = Input>, 

Feed input into the menu instance, possibly changing the selected entry, cancelling the menu, attempting to exit the program, or finalising the selection.

Trait Implementations

impl<T: Debug + Copy> Debug for MenuInstance<T>

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<T: Clone + Copy> Clone for MenuInstance<T>

fn clone(&self) -> MenuInstance<T>

Returns a copy of the value.

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

Performs copy-assignment from source.