89 lines
2 KiB
Rust
89 lines
2 KiB
Rust
use iced::widget::{column, pick_list, scrollable, vertical_space};
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use iced::{Center, Element, Fill};
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pub fn main() -> iced::Result {
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iced::run(Example::update, Example::view)
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}
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#[derive(Default)]
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struct Example {
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selected_language: Option<Language>,
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}
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#[derive(Debug, Clone, Copy)]
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enum Message {
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LanguageSelected(Language),
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}
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impl Example {
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fn update(&mut self, message: Message) {
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match message {
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Message::LanguageSelected(language) => {
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self.selected_language = Some(language);
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}
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}
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}
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fn view(&self) -> Element<Message> {
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let pick_list = pick_list(
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&Language::ALL[..],
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self.selected_language,
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Message::LanguageSelected,
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)
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.placeholder("Choose a language...");
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let content = column![
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vertical_space().height(600),
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"Which is your favorite language?",
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pick_list,
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vertical_space().height(600),
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]
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.width(Fill)
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.align_x(Center)
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.spacing(10);
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scrollable(content).into()
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}
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}
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#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
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pub enum Language {
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#[default]
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Rust,
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Elm,
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Ruby,
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Haskell,
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C,
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Javascript,
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Other,
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}
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impl Language {
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const ALL: [Language; 7] = [
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Language::C,
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Language::Elm,
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Language::Ruby,
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Language::Haskell,
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Language::Rust,
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Language::Javascript,
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Language::Other,
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];
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}
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impl std::fmt::Display for Language {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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write!(
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f,
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"{}",
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match self {
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Language::Rust => "Rust",
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Language::Elm => "Elm",
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Language::Ruby => "Ruby",
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Language::Haskell => "Haskell",
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Language::C => "C",
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Language::Javascript => "Javascript",
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Language::Other => "Some other language",
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}
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)
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}
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}
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