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|
extern crate gtk;
use gtk::*;
use std::process;
use std::sync::atomic::{ AtomicUsize, Ordering };
use std::sync::Arc;
// TODO listen for connect_delete_event
pub struct App {
pub window: Window,
pub header: Header,
pub content: Content,
}
pub struct Header {
pub container: HeaderBar,
pub reset: Button,
}
pub struct Content {
pub container: Box,
pub add: Button,
pub counter: Label,
}
pub struct Counter(AtomicUsize);
impl App {
fn new(counter: &Counter) -> App {
let window = Window::new(WindowType::Toplevel);
let header = Header::new();
let content = Content::new(counter);
// Define windows stuff
window.set_titlebar(&header.container);
window.set_title("Hello world!");
window.set_wmclass("test-app", "test app");
Window::set_default_icon_name("iconname");
window.add(&content.container);
window.connect_delete_event(move |_, _| {
main_quit();
Inhibit(false)
});
App { window, header, content}
}
}
impl Content {
fn new(counter: &Counter) -> Content {
let container = Box::new(Orientation::Horizontal, 0);
let counter = Label::new(counter.get_count().to_string().as_str());
let add = Button::new_with_label("Add");
add.get_style_context().map(|c| c.add_class("suggested-action"));
container.pack_start(&counter, true, true, 0);
container.pack_start(&add, false, false, 0);
Content { container, counter, add}
}
}
impl Header {
fn new() -> Header {
let container = HeaderBar::new();
let reset = Button::new_with_label("Reset");
container.set_title("Hello world!");
container.set_show_close_button(true);
reset.get_style_context().map(|c| c.add_class("destructive-action"));
container.pack_start(&reset);
Header { container, reset }
}
}
impl Counter {
fn new() -> Counter {
Counter(AtomicUsize::new(0))
}
fn get_count(&self) -> usize { self.0.load(Ordering::SeqCst) }
fn reset(&self) {
self.0.store(0, Ordering::SeqCst);
}
fn count(&self) -> usize {
let before = self.0.fetch_add(1, Ordering::SeqCst);
before + 1
}
}
fn main() {
println!("Hello, world!");
let c = Arc::new(Counter::new());
if gtk::init().is_err() {
eprintln!("failed to init GTK");
process::exit(1);
}
let app = App::new(&c);
{
let counter = c.clone();
let info = app.content.counter.clone();
app.header.reset.clone().connect_clicked(move |_| {
counter.reset();
info.set_label("0");
});
}
{
let counter = c.clone();
let info = app.content.counter.clone();
app.content.add.clone().connect_clicked(move |_| {
let new = counter.count();
info.set_label(new.to_string().as_str());
});
}
app.window.show_all();
gtk::main();
}
|
