cacao/examples/autolayout.rs
2022-07-15 16:14:02 +02:00

103 lines
3.4 KiB
Rust

//! This example showcases setting up a basic application and window, setting up some views to
//! work with autolayout, and some basic ways to handle colors.
use cacao::color::{Color, Theme};
use cacao::layout::{Layout, LayoutConstraint};
use cacao::view::View;
use cacao::appkit::menu::{Menu, MenuItem};
use cacao::appkit::window::{Window, WindowConfig, WindowDelegate};
use cacao::appkit::{App, AppDelegate};
struct BasicApp {
window: Window<AppWindow>
}
impl AppDelegate for BasicApp {
fn did_finish_launching(&self) {
App::set_menu(vec![
Menu::new("", vec![
MenuItem::Services,
MenuItem::Separator,
MenuItem::Hide,
MenuItem::HideOthers,
MenuItem::ShowAll,
MenuItem::Separator,
MenuItem::Quit,
]),
Menu::new("File", vec![MenuItem::CloseWindow]),
Menu::new("View", vec![MenuItem::EnterFullScreen]),
Menu::new("Window", vec![
MenuItem::Minimize,
MenuItem::Zoom,
MenuItem::Separator,
MenuItem::new("Bring All to Front"),
]),
]);
App::activate();
self.window.show();
}
fn should_terminate_after_last_window_closed(&self) -> bool {
true
}
}
#[derive(Default)]
struct AppWindow {
content: View,
blue: View,
red: View,
green: View
}
impl WindowDelegate for AppWindow {
const NAME: &'static str = "WindowDelegate";
fn did_load(&mut self, window: Window) {
window.set_title("AutoLayout Example");
window.set_minimum_content_size(300., 300.);
let dynamic = Color::dynamic(|style| match (style.theme, style.contrast) {
(Theme::Dark, _) => Color::SystemGreen,
_ => Color::SystemRed
});
self.blue.set_background_color(Color::SystemBlue);
self.blue.layer.set_corner_radius(16.);
self.content.add_subview(&self.blue);
self.red.set_background_color(Color::SystemRed);
self.content.add_subview(&self.red);
self.green.set_background_color(dynamic);
self.content.add_subview(&self.green);
window.set_content_view(&self.content);
LayoutConstraint::activate(&[
self.blue.top.constraint_equal_to(&self.content.top).offset(46.),
self.blue.leading.constraint_equal_to(&self.content.leading).offset(16.),
self.blue.bottom.constraint_equal_to(&self.content.bottom).offset(-16.),
self.blue.width.constraint_equal_to_constant(100.),
self.red.top.constraint_equal_to(&self.content.top).offset(46.),
self.red.leading.constraint_equal_to(&self.blue.trailing).offset(16.),
self.red.bottom.constraint_equal_to(&self.content.bottom).offset(-16.),
self.green.top.constraint_equal_to(&self.content.top).offset(46.),
self.green.leading.constraint_equal_to(&self.red.trailing).offset(16.),
self.green.trailing.constraint_equal_to(&self.content.trailing).offset(-16.),
self.green.bottom.constraint_equal_to(&self.content.bottom).offset(-16.),
self.green.width.constraint_equal_to_constant(100.)
]);
}
}
fn main() {
App::new("com.test.window", BasicApp {
window: Window::with(WindowConfig::default(), AppWindow::default())
})
.run();
}