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|
use iced::{
button, combo_box, Button, Column, ComboBox, Container, Element, Length,
Sandbox, Settings, Text,
};
pub fn main() {
Example::run(Settings::default())
}
#[derive(Default)]
struct Example {
button: button::State,
combo_box: combo_box::State,
selected_language: Language,
}
#[derive(Debug, Clone, Copy)]
enum Message {
ButtonPressed,
LanguageSelected(Language),
}
impl Sandbox for Example {
type Message = Message;
fn new() -> Self {
Self::default()
}
fn title(&self) -> String {
String::from("Combo box - Iced")
}
fn update(&mut self, message: Message) {
match message {
Message::ButtonPressed => {}
Message::LanguageSelected(language) => {
self.selected_language = language;
}
}
}
fn view(&mut self) -> Element<Message> {
let combo_box = ComboBox::new(
&mut self.combo_box,
&Language::ALL[..],
Some(self.selected_language),
Message::LanguageSelected,
);
let button = Button::new(&mut self.button, Text::new("Press me!"))
.on_press(Message::ButtonPressed);
let mut content = Column::new()
.spacing(10)
.push(Text::new("Which is your favorite language?"))
.push(combo_box);
if self.selected_language == Language::Javascript {
content = content.push(Text::new("You are wrong!"));
}
content = content.push(button);
Container::new(content)
.width(Length::Fill)
.height(Length::Fill)
.center_x()
.center_y()
.into()
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum Language {
Rust,
Elm,
Ruby,
Haskell,
C,
Javascript,
Other,
}
impl Language {
const ALL: [Language; 7] = [
Language::C,
Language::Elm,
Language::Ruby,
Language::Haskell,
Language::Rust,
Language::Javascript,
Language::Other,
];
}
impl Default for Language {
fn default() -> Language {
Language::Rust
}
}
impl std::fmt::Display for Language {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(
f,
"{}",
match self {
Language::Rust => "Rust",
Language::Elm => "Elm",
Language::Ruby => "Ruby",
Language::Haskell => "Haskell",
Language::C => "C",
Language::Javascript => "Javascript",
Language::Other => "Some other language",
}
)
}
}
|
