use appcui::prelude::*;

fn main() -> Result<(), appcui::system::Error> {
    let mut app = App::new().build()?;
    let mut win = Window::new(
        "Test",
        LayoutBuilder::new().alignment(Alignment::Center).width(30).height(9).build(),
        window::Flags::Sizeable,
    );
    win.add(Label::new(
        "Hello World !",
        LayoutBuilder::new().alignment(Alignment::Center).width(13).height(1).build(),
    ));
    app.add_window(win);
    app.run();
    Ok(())
}

use appcui::prelude::*;

fn main() -> Result<(), appcui::system::Error> {
    let mut app = App::new().build()?;
    let mut win = window!("Test,a:c,w:30,h:9");
    win.add(label!("'Hello World !',a:c,w:13,h:1"));
    app.add_window(win);
    app.run();
    Ok(())
}

use appcui::prelude::*;

// Create a window that handles button events and has a counter
#[Window(events = ButtonEvents)]
struct CounterWindow {
    counter: i32
}

impl CounterWindow {
    fn new() -> Self {
        let mut w = Self {
            // set up the window title and position
            base: window!("'Counter window',a:c,w:30,h:5"),
            // initial counter is 1
            counter: 1            
        };
        // add a single button with the caption "1" (like the counter)
        w.add(button!("'1',d:b,w:20"));
        w
    }
}
impl ButtonEvents for CounterWindow {
    // When the button is pressed, this function will be called
    // with the handle of the button that was pressed
    // Since we only have one button, we don't need to store its handle 
    // in the struct, as we will receive the handle via the on_pressed method
    fn on_pressed(&mut self, handle: Handle<Button>) -> EventProcessStatus {
        // increase the counter
        self.counter += 1;
        // create a text that contains the new counter
        let text = format!("{}",self.counter);
        // acquire a mutable reference to the button using its handle
        if let Some(button) = self.control_mut(handle) {
            // set the caption of the button to the new text
            button.set_caption(&text);
        }
        // Tell the AppCUI framework that we have processed this event
        // This allows AppCUI to repaint the button
        EventProcessStatus::Processed
    }
}

fn main() -> Result<(), appcui::system::Error> {
    // create a new application
    let mut a = App::new().build()?;
    // add a new window (of type CounterWindow) to the application
    a.add_window(CounterWindow::new());
    // Run AppCUI framework (this will start the window loop and message passing)
    a.run();
    Ok(())
}