changed cow type to a generic that requires display to allow for more…

… times to be passed in

src/native/helpers.rs

@@ -298,12 +298,13 @@ where
 }
 
 #[cfg(feature = "selection_list")]
+use std::fmt::Display;
 /// Shortcut helper to create a [`SelectionList`] Widget.
 ///
 /// [`SelectionList`]: crate::SelectionList
 #[must_use]
 pub fn selection_list_with<'a, T, Message, Renderer>(
- options: impl Into<Cow<'a, [T]>>,
+ options: &'a [T],
  on_selected: impl Fn(usize, T) -> Message + 'static,
  text_size: f32,
  padding: f32,
@@ -317,9 +318,10 @@ where
  Renderer::Theme: crate::style::selection_list::StyleSheet
  + iced_widget::container::StyleSheet
  + iced_widget::scrollable::StyleSheet,
- T: Clone + ToString + Eq + Hash,
+ T: Clone + Display + Eq + Hash,
  [T]: ToOwned<Owned = Vec<T>>,
 {
+
  crate::SelectionList::new_with(
  options,
  on_selected,
@@ -337,7 +339,7 @@ where
 /// [`SelectionList`]: crate::SelectionList
 #[must_use]
 pub fn selection_list<'a, T, Message, Renderer>(
- options: impl Into<Cow<'a, [T]>>,
+ options: &'a [T],
  on_selected: impl Fn(usize, T) -> Message + 'static,
 ) -> crate::SelectionList<'a, T, Message, Renderer>
 where
@@ -346,7 +348,7 @@ where
  Renderer::Theme: crate::style::selection_list::StyleSheet
  + iced_widget::container::StyleSheet
  + iced_widget::scrollable::StyleSheet,
- T: Clone + ToString + Eq + Hash,
+ T: Clone + Display + Eq + Hash,
  [T]: ToOwned<Owned = Vec<T>>,
 {
  crate::SelectionList::new(options, on_selected)

src/native/selection_list.rs

@@ -19,8 +19,8 @@ use iced_widget::{
 };
 
 pub use list::List;
-use std::marker::PhantomData;
-use std::{borrow::Cow, hash::Hash};
+use std::hash::Hash;
+use std::{fmt::Display, marker::PhantomData};
 
 /// A widget for selecting a single value from a dynamic scrollable list of options.
 #[allow(missing_debug_implementations)]
@@ -35,7 +35,7 @@ where
  /// Container for Rendering List.
  container: Container<'a, Message, Renderer>,
  /// List of Elements to Render.
- options: Cow<'a, [T]>,
+ options: &'a [T],
  /// Label Font
  font: Renderer::Font,
  /// The Containers Width
@@ -56,20 +56,16 @@ where
  Message: 'a + Clone,
  Renderer: 'a + core::Renderer + core::text::Renderer<Font = core::Font>,
  Renderer::Theme: StyleSheet + container::StyleSheet + scrollable::StyleSheet,
- T: Clone + ToString + Eq + Hash,
+ T: Clone + Display + Eq + Hash,
  [T]: ToOwned<Owned = Vec<T>>,
 {
  /// Creates a new [`SelectionList`] with the given list of `options`,
  /// the current selected value, and the `message` to produce when an option is
  /// selected. This will default the `style`, `text_size` and `padding`. use `new_with`
  /// to set those.
- pub fn new(
- options: impl Into<Cow<'a, [T]>>,
- on_selected: impl Fn(usize, T) -> Message + 'static,
- ) -> Self {
- let options = options.into();
+ pub fn new(options: &'a [T], on_selected: impl Fn(usize, T) -> Message + 'static) -> Self {
  let container = Container::new(Scrollable::new(List {
- options: options.clone(),
+ options,
  font: Font::default(),
  text_size: 12.0,
  padding: 5.0,
@@ -96,17 +92,16 @@ where
  /// the current selected value, the message to produce when an option is
  /// selected, the `style`, `text_size`, `padding` and `font`.
  pub fn new_with(
- options: impl Into<Cow<'a, [T]>>,
+ options: &'a [T],
  on_selected: impl Fn(usize, T) -> Message + 'static,
  text_size: f32,
  padding: f32,
  style: <Renderer::Theme as StyleSheet>::Style,
  selected: Option<usize>,
  font: Font,
  ) -> Self {
- let options = options.into();
  let container = Container::new(Scrollable::new(List {
- options: options.clone(),
+ options,
  font,
  text_size,
  padding,

src/native/selection_list/list.rs

@@ -1,7 +1,7 @@
 //! Build and show dropdown `ListMenus`.
 use std::{
- borrow::Cow,
  collections::hash_map::DefaultHasher,
+ fmt::Display,
  hash::{Hash, Hasher},
  marker::PhantomData,
 };
@@ -28,13 +28,13 @@ use iced_widget::{
 #[allow(missing_debug_implementations)]
 pub struct List<'a, T: 'a, Message, Renderer>
 where
- T: Clone + ToString + Eq + Hash,
+ T: Clone + Display + Eq + Hash,
  [T]: ToOwned<Owned = Vec<T>>,
  Renderer: core::Renderer + core::text::Renderer<Font = core::Font>,
  Renderer::Theme: StyleSheet,
 {
  /// Options pointer to hold all rendered strings
- pub options: Cow<'a, [T]>,
+ pub options: &'a [T],
  /// Hovered Item Pointer
  /// Label Font
  pub font: Renderer::Font,
@@ -63,7 +63,7 @@ pub struct ListState {
 
 impl<'a, T, Message, Renderer> Widget<Message, Renderer> for List<'a, T, Message, Renderer>
 where
- T: Clone + ToString + Eq + Hash,
+ T: Clone + Display + Eq + Hash,
  Renderer: core::Renderer + core::text::Renderer<Font = core::Font>,
  Renderer::Theme: StyleSheet,
 {
@@ -278,7 +278,7 @@ where
 impl<'a, T, Message, Renderer> From<List<'a, T, Message, Renderer>>
  for Element<'a, Message, Renderer>
 where
- T: Clone + ToString + Eq + Hash,
+ T: Clone + Display + Eq + Hash,
  Message: 'a,
  Renderer: 'a + core::Renderer + core::text::Renderer<Font = core::Font>,
  Renderer::Theme: StyleSheet,