cursive/examples/select.rs

38 lines
1.3 KiB
Rust
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extern crate cursive;
use std::fs::File;
use std::io::{BufReader,BufRead};
use cursive::Cursive;
use cursive::align::HAlign;
use cursive::view::{Dialog,SelectView,TextView,BoxView};
fn main() {
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// To keep things simple, little error management is done here.
// If you have an error, be sure to run this from the crate root, not from a sub directory.
let mut select = SelectView::new().h_align(HAlign::Center);
// Read the list of cities from separate file, and fill the view with it.
let file = File::open("assets/cities.txt").unwrap();
let reader = BufReader::new(file);
for line in reader.lines() {
select.add_item_str(&line.unwrap());
}
let mut siv = Cursive::new();
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// Let's add a BoxView to keep the list at a reasonable size - it can scroll anyway.
siv.add_layer(Dialog::new(BoxView::new((20,10), select.on_select(|s,city| show_next_window(s,city))))
.title("Where are you from?"));
siv.run();
}
// Let's put the callback in a separate function to keep it clean, but it's not required.
fn show_next_window(siv: &mut Cursive, city: &str) {
siv.pop_layer();
siv.add_layer(Dialog::new(TextView::new(&format!("{} is a great city!", city)))
.button("Quit", |s| s.quit()));
}