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use chrono::{NaiveDate, Datelike, Weekday};
use gtk4::gdk::Display;
use gtk4::prelude::*;
use gtk4::{
Align, Application, ApplicationWindow, CssProvider, Grid, Label, Orientation, StyleContext,
STYLE_PROVIDER_PRIORITY_APPLICATION, Box as GtkBox
};
static DAYS: [&str; 7] = ["LUN", "MAR", "MER", "JEU", "VEN", "SAM", "DIM"];
static MONTHES: [&str; 12] = ["Jan", "Fév", "Mar", "Avr", "Mai", "Juin", "Juil", "Aoû", "Sep", "Oct", "Nov", "Déc"];
fn main() {
let application = Application::new(Some("me.guyonvarch.calendar"), Default::default());
application.connect_startup(build_ui);
application.run();
}
fn build_ui(application: &Application) {
let window = ApplicationWindow::new(application);
window.set_title(Some("Calendar"));
window.set_default_size(800, 600);
window.set_hexpand(true);
window.set_vexpand(true);
load_style();
let grid = Grid::builder().build();
window.set_child(Some(&grid));
for col in 0..7 {
grid.attach(&day_title(col), col, 0, 1, 1);
}
let today = chrono::offset::Local::today().naive_utc();
let last_monday = NaiveDate::from_isoywd(today.year(), today.iso_week().week(), Weekday::Mon);
let mut d = last_monday;
for row in 1..5 {
for col in 0..7 {
grid.attach(&day_entry(&today, &d), col, row, 1, 1);
d = d.succ();
}
}
window.show();
}
fn load_style() {
let provider = CssProvider::new();
provider.load_from_data(include_bytes!("style.css"));
StyleContext::add_provider_for_display(
&Display::default().expect("Error initializing gtk css provider."),
&provider,
STYLE_PROVIDER_PRIORITY_APPLICATION,
);
}
fn day_title(col: i32) -> GtkBox {
let vbox = GtkBox::builder()
.orientation(Orientation::Vertical)
.hexpand(true)
.build();
vbox.add_css_class("g-Calendar__DayTitle");
let label = Label::builder()
.label(DAYS[col as usize])
.halign(Align::Center)
.valign(Align::Center)
.build();
vbox.append(&label);
vbox
}
fn day_entry(today: &NaiveDate, d: &NaiveDate) -> GtkBox {
let vbox = GtkBox::builder()
.orientation(Orientation::Vertical)
.hexpand(true)
.vexpand(true)
.build();
vbox.add_css_class("g-Calendar__Day");
if d == today {
vbox.add_css_class("g-Calendar__Day--Today");
}
let label = Label::builder()
.label(&format!("{} {}", d.day(), MONTHES[d.month0() as usize]))
.halign(Align::Start)
.valign(Align::Center)
.build();
label.add_css_class("g-Calendar__DayNumber");
vbox.append(&label);
vbox
}
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